Builders x Devs

Tech Lead — Gaming Projects (Telegram / Unity / Web3)
$2000 - $4000 USD per month

#вакансия #TechLead #GameDev #Telegram #Unity #Web3 #NFT #Remote #Parttime #Fulltime


✦ Job Description:
We're looking for a Tech Lead to guide the development of cross-platform games (Telegram Mini Apps, Unity, Web3). This role involves architectural planning, team leadership, and involvement in game design and development processes. Flexible workload: part-time (10–20 hrs/week) or full-time.

Key Responsibilities:
– Define technical architecture and vision
– Lead backend, frontend, and Unity teams
– Choose tech stack, CI/CD, conduct code reviews
– Contribute to game design, hiring, and team processes

✦ Qualifications:
– Proven Tech Lead experience in gaming or Web3 projects
– Strong architectural thinking and team management skills
– Understanding of client-server architecture, NFTs, and wallet authentication

✦ Preferred Qualifications:
– Experience with games from scratch
– Minimal bureaucracy, full tech-stack influence
– Growth path toward CTO

Location: Remote

Contact: @Alexey_z_z
✦ Please forward the job posting when applying.
✦ @HOLDER_JOB_DEVS

Team Lead / Solana Trading Bot
6000-1000 USDT

#Vacancy #TeamLead #Rust #Solana #TradingBot #Crypto #Remote #Web3

Company: PrivateAI (The Thing)

✦ Job Description:
The Thing is an on-chain sentiment analysis platform helping users follow the best influencers and Telegram channels. We are looking for a Team Lead to assemble and lead developers in building a multichain trading bot, develop MEV-focused strategies, and deliver new applications under the PrivateAI label.

Key Responsibilities:
– Assemble and manage a development team for a multichain trading bot
– Extract new coin CA addresses from multiple sources
– Deliver short-term software projects under the PrivateAI label
– Develop, backtest, and execute MEV algorithmic strategies
– Ensure roadmap milestones are met on time

✦ Qualifications:
– Strong Rust programming skills
– Proficiency in TypeScript & Solana’s Web3.js or Anchor client
– Experience interacting with Solana DEXs, LPs, token accounts, swaps
– Deep knowledge of the EVM stack (smart contract design, BNB, Base, Sonic, etc.)
– Hands-on experience with transaction racing, arbitrage, sniping using Solana infra (Jito, BlockXroute, NextBlock)
– Understanding of new memecoin launchpads (pump.fun, virtuals, auto.fun, letsbonk.fun, Moonshot)

✦ Preferred Qualifications:
– Experience leading teams on complex blockchain products

Location: Remote

Contact: @swordfishthrombone
✦ Please forward the job posting when applying.

DevOps Engineer / Solidity Engineer
$5000 - $7000 USD per month

#Vacancy #DevOps #SolidityEngineer #Developer #Solidity #Blockchain #Fulltime #Remote #Удаленно

Company: Fluence

✦ Job Description:
Fluence is the first decentralized “cloudless” computing platform, offering a cheaper, resilient, and verifiable alternative to major cloud providers. The team is looking for two roles: a DevOps Engineer to maintain and optimize infrastructure and a Solidity Engineer to lead smart contract development for Fluence’s on-chain marketplace. Both roles are fully remote.

Key Responsibilities:
DevOps
– Maintain and troubleshoot Kubernetes infrastructure (cloud and bare-metal)
– Improve observability (alerts, dashboards, system visibility)
– Maintain CI/CD pipelines
– Participate in cloud R&D (storage, networking, virtualization, hardware)
– Debug customer VM/workload issues
– Join on-call rotation for platform reliability

Solidity Engineer
– Redesign and implement the next-gen on-chain marketplace
– Architect and optimize smart contracts for gas and upgradability
– Contribute to tokenomics modeling and implementation
– Lead audits and security reviews
– Align smart contract interfaces with off-chain services
– Refactor and maintain legacy contracts
– Ensure high standards in testing and documentation

✦ Qualifications:
DevOps
– 3+ years of production experience
– Strong Kubernetes & Terraform expertise
– Familiar with GitOps principles and Prometheus ecosystem
– Independent, fast delivery
– Russian & English proficiency

Solidity Engineer
– Deep experience with Solidity, EVM, Foundry, Hardhat
– Expertise in gas optimization and economic efficiency
– Experience integrating Web3 protocols with traditional backends (TypeScript/microservices)
– Strong understanding of tokenomics and on-chain incentives
– Comfortable with complex legacy codebases

✦ Preferred Qualifications:
– (Solidity) Familiarity with Rust and non-Ethereum blockchain systems

Location: Remote

Contact: @ru_spiridonov
✦ Please forward the job posting when applying.

@holder_job_devs

Full-Stack Developer (Strong Middle–Senior)
$3000 - $3500 USD per month

#вакансия #fullstack #remote #web3 #AI #javascript

✦ Job Description:
We're building at the intersection of AI, Web3, and real-time systems. Looking for a full-stack developer who understands architecture, quickly dives into new codebases, and drives features to production.

Key Responsibilities:
– Develop backend with Node.js (NestJS / Express)
– Build frontend with React + TypeScript
– Implement real-time features using WebSocket / Socket.io
– Work with REST API / GraphQL
– Manage databases: PostgreSQL / MongoDB
– Handle DevOps: Docker, Git, CI/CD
– Build PWA and work with service workers
– Implement auth with JWT / OAuth2
– Read and write technical documentation
– Write clean, testable code
– Work with Web3 technologies

✦ Qualifications:
– 3+ years of full-stack experience
– Strong understanding of architecture and clean code principles
– Ability to deliver features from scratch to release
– Comfortable with startup environment
– Experience with Web3 is a must

Location: Remote

Contact: @alena_h_h
✦ Please forward the job posting when applying.

@holder_job_devs

DevOps Engineer (Blockchain)
$4000 - $7000 USD per month

#vacancy #DevOps #remote #crypto #blockchain

Company: vSelf

✦ Job Description:
vSelf is hiring a DevOps Engineer to maintain and optimize the infrastructure for blockchain applications. You will be responsible for CI/CD pipelines, cloud environments, and automation. Remote, flexible schedule with growth opportunities.

Key Responsibilities:
– Build and support CI/CD pipelines
– Manage infrastructure in AWS, GCP, or Azure
– Work with Docker and Kubernetes
– Ensure system scalability, performance, and security
– Monitor and reduce system downtime
– Implement logging, monitoring, and alerting tools
– Automate routine deployment tasks

✦ Qualifications:
– 2+ years in a DevOps role
– Strong experience with Docker and Kubernetes
– Proficiency with cloud providers (AWS, GCP, Azure)
– CI/CD experience (GitLab CI, Jenkins, CircleCI, etc.)
– Linux expertise and tools like Ansible, Terraform, Helm
– Monitoring tools: Prometheus, Grafana, ELK
– Understanding of blockchain and dApps
– English level: Intermediate or higher

✦ Preferred Qualifications:
– Experience in large-scale blockchain infrastructure
– Passion for automation and security best practices

Location: Remote

Contact: @Bojenka_kirill
✦ Please forward the job posting when applying.

✦ @holder_job_devs

EVM Developer
$4500 - $6500 USD per month

#vacancy #developer #evm #remote #crypto #blockchain

Company: BlockSniper

✦ Job Description:
BlockSniper is a crypto trading startup building sniper bots and smart trading strategies. Their 20-person analytics team selects projects and develops high-speed blockchain trading products.

Key Responsibilities:
– Development with Solidity
– Ethereum and framework development
– Smart contract security implementation
– Work with EVM and smart contracts
– Contribution to open-source projects

✦ Qualifications:
– Experience with Solidity
– Understanding blockchain principles
– Experience with Ethereum development
– Git proficiency
– Go experience

✦ Preferred Qualifications:
– Smart contract security expertise
– Open-source contributions

Location: Remote

Contact: TG: @heyanastage
✦ Please forward the job posting when applying.

@holder_job_devs

Rust Engineer (Blockchain)
$6000 - $8000 USD per month

#vacancy #developer #rust #remote #crypto #blockchain

Company: vSelf

✦ Job Description:
We are looking for a skilled Rust Engineer to develop high-performance blockchain applications. This remote full-time role allows you to work from any country, offering a unique opportunity to contribute to cutting-edge blockchain projects. The ideal candidate is adept at both independent work and collaboration.

Key Responsibilities:
– Develop and maintain high-performance blockchain applications using Rust
– Design and optimize smart contracts
– Integrate Rust applications with various blockchain platforms
– Participate in architectural design and evaluate technical solutions
– Ensure code security and performance
– Test, debug, and fix code issues
– Participate in task planning and time estimation

✦ Qualifications:
– 3+ years of experience with Rust
– Understanding of blockchain technology principles
– Experience with distributed systems or blockchain platforms (e.g., Polkadot, Solana, Near)
– Knowledge of algorithms and data structures
– Experience writing tests and understanding code quality methodologies
– English level: Intermediate or above

✦ Preferred Qualifications:
– Experience with WebAssembly
– Knowledge and experience with blockchain-related languages (e.g., Solidity, Move)
– Experience using Docker and CI/CD tools
– Understanding of cryptography fundamentals and consensus protocols
– Participation in open-source projects

Location: Remote

Contact: @limar_sheref for more details.
✦ Please forward the job posting when applying.

@holder_job_devs

Senior Java Developer (Blockchain Expertise)
Up to $5000 USD net

#vacancy #java #senior #blockchain

Company: WhiteBird – a legal Belarusian crypto platform.

A high-quality and reliable crypto service for clients from CIS countries and worldwide.

Location: Hybrid / Office (Minsk, Sverdlova St. 11)
Salary: Up to $5000 net

✦ Job Description:
We are looking for a Senior Java Developer with expertise in blockchain to design and develop a crypto custodial system for an exchange. This role is ideal for someone passionate about writing reliable and efficient code.

Key Responsibilities:
– Design the architecture for a crypto custodial system for the exchange
– Develop and implement key modules
– Write reliable and high-performance code
– Implement engineering practices and code standards

✦ Qualifications:
– Strong Java Core with Java 11–21
– Experience with: Spring (Boot, Data, Security, etc.), Postgres, Hibernate, RabbitMQ, Docker, Kubernetes
– Deep understanding of blockchain architecture and principles
– Experience with one of the smart contract languages: Solidity, Rust, or Go
– Knowledge of cryptography (hashes, signatures, SMPC)
– Ability to apply design patterns in complex systems
– 5+ years of commercial Java development experience
– Preferred: Experience with Go

✦ What We Offer:
– Participation in developing a crypto system from scratch
– Strong team, modern technologies
– Health insurance, gym/boxing
– Extended social package according to Belarusian labor law

Contact: @Helen_Zalesskaya for more details.
✦ Please forward the job posting when applying.

Tech Lead (Solana Trading Bots)
Up to $6000 USD

#vacancy #solana #tradingbots

Company: Recruiting Agency for our Client

✦ Job Description:
We are seeking an experienced Tech Lead (Solana Trading Bots) to join a cutting-edge DeFi project. This role is ideal for a professional who excels both in team leadership and independent work with minimal guidance.

Key Responsibilities:
– Design and deploy infrastructure for trading/MM bots
– Select and conduct technical interviews for developers
– Develop and optimize strategies (MEV, arbitrage, clustering, etc.)
– Monitor the network and adapt to Solana/Jito updates

✦ Qualifications:
– Experience with @solana/web3.js, @jito-foundation/sdk, Anchor, Jupiter API
– Understanding of AMM (Pump.fun, Moonshot, Raydium, Orca, Meteora, etc.)
– Active participation in developer communities (Discord Jito, Helius, GitHub, etc.)
– Proficiency in Node.js, understanding of Solana architecture, QUIC/TPU, fee markets

✦ Preferred Qualifications:
– Basic knowledge of Rust
– Understanding of Solana intricacies (slots, rate limits, TPS, parallelism, etc.)

Location: Remote
Contract: Part-time considered

Contact: @qqrtyyyA
✦ Please forward the job posting when applying.

Senior JS Fullstack Developer
From $2500 USD (determined based on interview results)

#vacancy #frontend #backend #fullstack #react #nodejs #developer #fulltime #remote #blockchain #crypto

Company: Match Systems

✦ Job Description:
Match Systems, a leading company developing blockchain-based solutions, is seeking a Senior JS Fullstack Developer. This role involves working on a software suite for blockchain transaction analysis and tracking across various cryptocurrencies (AML - anti-money laundering), as well as building ecosystems for payment acceptance and cryptocurrency exchange.

Key Responsibilities:
– Develop and maintain ecosystems for payment acceptance and cryptocurrency exchange
– Develop and support an AML platform

✦ Qualifications:
– Proficiency in React 18
– Strong knowledge of JS (ES 6+) and Typescript
– Experience with REST / GraphQL
– Ability to work independently as part of a development team
– Experience in server-side development with Node.js, Bun
– Experience with Redis, Kafka, PostgreSQL
– Knowledge of SOLID principles and design patterns
– Basic SQL knowledge
– Understanding of blockchain protocols and experience with web3.js is a plus
– Experience with Vite, Webpack
– Experience with Vue, Angular is an advantage

✦ Preferred Qualifications:
– Experience in blockchain technology and cryptocurrency projects

Location: Singapore, Dubai, Russia, Kazakhstan (possibility of working from other locations)
Contract: Full time (part-time possible during the probation period)

Contact: @daryana_bye
✦ Please forward the job posting when applying.

Teamlead Backend Developer
Approximately $5000 USD (salary discussed during the interview)

#vacancy #developer #backend #senior #teamlead #crypto #fulltime #remote

Company: Cryptocurrency Exchange (B2C)

✦ Job Description:
We are a trusted B2C cryptocurrency exchange operating in Europe since 2018, seeking a skilled Teamlead Backend Developer. Our ideal candidate will have the ability to lead a team, ensuring transparency and high-quality development.

Our Stack:
– Backend: NodeJs, Nest.js, Typescript
– DB: PostgreSQL, Redis
– Frontend: React, TypeScript, Next.js
– GitLab, CI/CD, Docker, Kubernetes, RabbitMQ

Key Responsibilities:
– Decompose tasks and ensure a high level of development quality
– Accept stories from the Product Manager
– Manage the development team and support team member growth
– Monitor services in production and set up incident alert systems (Opsgenie, Grafana)
– Advocate for the team's interests and development quality

✦ Qualifications:
– Knowledge and understanding of metrics (freedom to choose metrics)
– Experience with load, integration, and unit testing
– 2+ years as a teamlead/techlead backend
– 3+ years as a senior backend developer
– 1+ year experience with Typescript

✦ Preferred Qualifications:
– Informal work atmosphere with flexible start times (up to 13:00)
– Fully remote work opportunities
– Support for initiatives and willingness to take risks and experiment
– Personalized development path, course compensation, and conference learning opportunities
– Timely salary payments twice a month, paid vacations, and sick leaves
– Compensation for healthcare, English courses, well-being (sports, psychological services, spa, meditation), coworking
– Developed corporate culture with events and more

Location: Remote (flexible start time up to 13:00 MSK)
Contract: Full time

Contact: @kate_shtein

Frontend Developer (Middle/Senior)
$3500+ USD base compensation

#vacancy #frontend #blockchain

Company: Baking Bad
https://bakingbad.dev/

✦ Job Description:
Baking Bad is seeking a skilled middle or senior-level Frontend Developer to join our team working on modern blockchain infrastructure and DeFi products. Our projects span multiple ecosystems, including Tezos, Celestia, Starknet, EVM, Astria, Aztec, and more. We are a global team of 25 professionals, active in the blockchain industry since 2019.

Key Responsibilities:
– Develop and maintain high-quality user interfaces
– Optimize application performance through porting frontend components using Server-Side-Rendering technology
– Write clean, maintainable, and efficient code
– Perform self code review and manual testing of developed functions
– Stay up-to-date with emerging trends and technologies in frontend development

✦ Qualifications:
– Minimum of 3 years of experience in frontend development
– Ability to work independently and in a team environment
– Understanding of good UI/UX principles and ability to apply them to frontend development
– Strong knowledge of Vue.js (Vue3, Vue2), Vite, Vuex, VueRouter, CSS/SCSS, responsive design, and basic working knowledge of Typescript
– Willingness and ability to learn about new technologies, such as blockchain
– Experience with Single-Page-Application architecture and Server-Side-Rendering technology
– Excellent problem-solving skills and attention to detail
– Ability to focus on feature delivery instead of code refactoring

Location: Fully remote or office work (Moscow city center)


Contact: @PetrGuss

Senior / Lead Developer (Remote, Full-time)
$4000 - $10000 USD+

#vacancy #Fulltime #senior #Backend #Fullstack #Rust

Company: Non-public team at the forefront of the crypto market

✦ Job Description:
We are a non-public team operating at the forefront of the crypto market, focusing on algorithmic trading, arbitrage, airdrops, retro drops, news, and DeFi. We operate without retail exposure.

Technologies: JS / TS, Python, Go, Rust, C++ (flexible combinations are open for discussion)

No bureaucracy. No unnecessary meetings.
We value clear, fast, and to-the-point communication and expect the same from you.

If you're looking to co-create a product rather than just write code, this is the place for you.

Key responsibilities:
– Refactor your own code
– Conduct necessary tests
– Engage in discussions and help shape the vision of the final product
– Implement the product according to this vision
– Support the project throughout its lifecycle

✦ Qualifications:
– Passionate about your work and eager to grow with a similarly driven team
– Capable of independently forming technical specifications
– Skilled in designing and developing complex systems
– Understanding of business logic and appreciation for real results over reporting for the sake of reporting
– Desire to build a product alongside strong, intelligent colleagues

Location: Remote

Contact: @Anastasiia_Kaisheva

Frontend Developer (Middle/Senior)
from $3500 USD

#vacancy #developer #frontend #blockchain #crypto #fulltime #remote

Company: Baking Bad
https://bakingbad.dev/

✦ Job Description:
We are looking for a skilled middle or senior-level Frontend Developer to join our team and work on modern blockchain infrastructure and DeFi products. This role involves working with a variety of ecosystems, including Tezos, Celestia, Starknet, EVM, Astria, Aztec, and more.

Key Responsibilities:
– Develop and maintain high-quality user interfaces
– Optimize application performance through porting frontend components using Server-Side-Rendering technology
– Write clean, maintainable, and efficient code
– Perform self code review and manual testing of developed functions
– Stay up-to-date with emerging trends and technologies in frontend development

✦ Qualifications:
– Minimum of 3 years of experience in frontend development
– Ability to work independently and in a team environment
– Understanding of good UI/UX principles and ability to apply them to frontend development
– Strong knowledge of Vue.js (Vue3, Vue2), Vite, Vuex, VueRouter, CSS/SCSS, responsive design, and basic working knowledge of Typescript
– Willingness and ability to learn about new technologies, such as blockchain
– Experience with Single-Page-Application architecture and Server-Side-Rendering technology
– Excellent problem-solving skills and attention to detail
– Ability to focus on feature delivery instead of code refactoring

✦ Terms:
– Base compensation starting from $3500 depending on interview results
– Annual bonuses based on performance review
– Flexible working hours
– Fully remote or office work (Moscow city center)
– An independent contract agreement, monthly invoices

About Us:
Baking Bad started in the Tezos ecosystem and has become one of the main contributors and now contributes to many blockchain networks. Our team has been working in the blockchain industry since 2019 and consists of 25 professionals around the world. We are working on multiple infrastructure and DeFi products across many ecosystems, exploring L2 solutions (Optimistic Rollups) and GameDev tools (Unity).

Contact: @PetrGuss

Senior Web3 Software Engineer
$4000 - $6000 USD

#vacancy #web3 #blockchain

Company: Quantum Fusion Network
https://qfnetwork.xyz/

✦ Job Description:
Quantum Fusion Network is dedicated to pushing the boundaries of blockchain technology, delivering unmatched speed, scalability, and developer-friendly tools. We are looking for a Senior Web3 Software Engineer to join our team, focusing on the development of our SDK and contributing to the growth of the QF Ecosystem and Development Tools.

Key Responsibilities:
– Design and implement decentralized applications (dApps) optimized for performance and user experience
– Develop developer-facing SDKs for seamless integration with Web3 services
– Build and maintain user-facing interfaces for decentralized applications
– Deploy and maintain server-side logic, including APIs and off-chain computation layers
– Enhance developer workflows with auxiliary tools
– Produce comprehensive and developer-friendly documentation

✦ Qualifications:
Must-have:
– Experience with JavaScript/TypeScript, React/Vue/Svelte, and web3 platforms (Polkadot ecosystem preferred)
– Strong skills in web3.js libraries and server-side frameworks like Node.js and Express/NestJS
– Proficiency with Docker, CI/CD tools, and blockchain ecosystems

Preferred Qualifications:
– Expertise in automated testing frameworks and fault tolerance engineering
– Experience in smart contract development and auditing with secure coding practices
– Leadership experience in cross-functional engineering teams

✦ Stack Expectation:
– JavaScript/TypeScript, React/Vue/Svelte, web3.js, WalletConnect
– Node.js, Express/NestJS, Docker, CI/CD (GitHub Actions, GitLab CI)
– GraphQL, PostgreSQL, Redis, Subsquid/Subquery
– Blockchain testnets, observability tools, smart contract languages like Solidity and Vyper

Location: Remote

Contact: @Michael_Terner

Middle Golang Developer (Experience in Gamedev and WEB3 Required)
$2500 - $4000 USD

#vacancy #golang #web3 #gamedev

Company: Recruiting Agency for our Client

✦ Job Description:
We are seeking a Middle Golang Developer with experience in gamedev and WEB3 to join our team. This role is ideal for a developer who is passionate about creating efficient and high-performance backend services and APIs in a microservices architecture.

Key Responsibilities:
– Develop and maintain high-performance backend services and APIs using Go within a microservices architecture
– Write efficient, optimized, and maintainable code following best development practices
– Design, develop, and manage databases including PostgreSQL and MongoDB, handling tasks like scaling, deployment, clustering, and sharding for stable and efficient application performance
– Participate in the continuous integration and deployment (CI/CD) processes of applications on servers
– Actively engage in system architecture design, technical decision-making, and choosing optimal technologies
– Collaborate with team members (frontend developers, QA engineers, DevOps specialists) to achieve common project goals
– Analyze and resolve emerging issues and bugs in developed applications
– Write technical documentation for the developed code and systems
– Participate in code reviews to ensure high code quality

✦ Qualifications:
– 2+ years of commercial development experience in Go
– Deep understanding of Go application performance optimization principles
– Strong skills and experience with PostgreSQL and MongoDB databases at the level of administration, scaling, and ensuring high availability. Knowledge of data clustering and sharding principles
– Practical experience deploying and configuring applications in various server environments (e.g., Linux, cloud platforms)
– Good understanding of microservices architecture principles and experience in microservice development
– Experience with version control systems (Git)
– Knowledge of basic network protocols (TCP/IP, HTTP)
– Experience writing unit and integration tests
– Ability to work in a team, communicate effectively, and solve problems

✦ Preferred Qualifications:
– Experience in game development (Terminal-Based Adventures, web games, or other gaming projects)
– Knowledge and experience with containerization (Docker, Kubernetes)
– Experience with container orchestration systems
– Experience with message brokers (e.g., Kafka, RabbitMQ)

Location: Remote

Contact: @inlovewetrust

Senior Rust Developer
5000-7000 USDT

#vacancy #developer #senior #rust #solana #blockchain #fulltime #remote

Company: BlockSniper

✦ Job Description:
BlockSniper, a leader in token sniping on the Solana network, is seeking an experienced Senior Rust Developer. We specialize in developing trading bots and high-speed strategies and have been operational for four years with a team of 50. Our approach is results-driven, without bureaucracy, and top performers receive bonuses of up to 300K in addition to their salary.

Key Responsibilities:
– Develop, deploy, and manage projects using Rust and Solana (Anchor, CLI)
– Utilize JS/TS, with an understanding of RPC/DApps/PoS
– Work with HFT, trading, or bots
– Lead projects from concept to production

✦ Qualifications:
– Strong experience in Rust and Solana
– Ability to tackle challenges independently and propose innovative solutions
– Self-reliance is essential; we offer maximum freedom, competitive salary, and growth opportunities in return

✦ Benefits:
– Competitive salary with bonuses and team profit sharing
– Fully remote position with paid vacations and sick leave
– Commitment to growth: we discuss benefits and support professional development

Contact: @m_dereviakina

Rust and Full-Stack TypeScript Developer
$7500 - $22000 USD gross

#vacancy #rust #typescript #blockchain

Company: DelugeCash

✦ Job Description:
DelugeCash is seeking skilled Rust Developers and Full-Stack TypeScript Developers to contribute to our innovative DeFi services for Solana and EVM-based networks. The ideal candidates will thrive in a fully remote, collaborative environment and possess a strong understanding of cryptocurrency technologies, including DEXs, liquidity lockers, and trading bots.

Key Responsibilities:
– Develop core features of the DEX application on Solana and EVM blockchains
– Implement smart contracts, trading mechanics, and real-time data solutions using Rust and TypeScript
– Integrate third-party SDKs like Uniswap, Meteora, Raydium, and Jito

✦ Qualifications:
– Strong experience with Rust and Solana, including smart contracts, runtime, and program architecture
– Proficiency in Full-Stack TypeScript, including Node.js, databases, Git, React, etc.
– Experience with EVM and Solana chains, DeFi protocols, and Solidity for smart contract development
– Solid understanding of cryptographic principles and blockchain security

✦ Preferred Qualifications:
– Familiarity with DeFi security practices
– Experience with blockchain data and real-time trading systems
– Prior experience with smart contract audits or DeFi protocol integrations

Location: Remote (Russian fluency required)

Salary: Competitive, starting from $7500 - $22000/mo

Contact: @DelugeSupport

System Administrator
From $2500 USD

#vacancy #sysadmin #prometheus #loki #promql #grafana #ansible #terraform #kafka #postgresql #docker #kubernetes #fulltime #remote #Match_Systems

Company: Match Systems — a leading company developing blockchain-based solutions.

✦ Job Description:
We are looking for a System Administrator to join our team and work on a software package for analyzing and tracking blockchain transactions across various cryptocurrencies (AML - anti money laundering). The position involves creating ecosystems for payment acceptance and cryptocurrency exchange.

Location: Singapore, Dubai, Russia, Kazakhstan (possibility of working from other locations).

✦ Key Responsibilities:
I. Linux Administration:
– Configure and manage the network subsystem
– Centralize management of the netfilter firewall
– Server maintenance (working with RAID, ext*/zfs file systems)
– Manage access control policies
– Configure and manage systemd services
– Set up proxies/load balancers
– Configure, collect, and filter logs
– Work with backup and data recovery strategies. Set up automated backup processes, including regular data recovery testing and monitoring
– Audit/debug OS/system/network events
– Basic security settings
– Automate processes with Ansible

II. Monitoring and Logging Stack (based on Prometheus/grafana/alertmanager/loki):
– Set up server and service monitoring systems
– Deploy/configure metric exporters
– Collaborate with developers to add metrics to applications and configure their collection and storage
– Manage labels and optimize metric collection using relabeling
– Configure alerts with grafana+alertmanager using Terraform
– Visualize metrics in Grafana with PromQL

✦ Qualifications:
– 3+ years of experience as a systems/infrastructure engineer
– 5+ years of experience with Linux OS
– Strong knowledge of core network protocols (IP, TCP, UDP, HTTP, HTTPS)
– Automation & IaC: Ansible, Terraform, GitLab-CI
– Experience with Prometheus & Grafana & Alertmanager monitoring
– Experience with Git, Kafka, PostgreSQL, HashiCorp Vault, Consul
– Experience with containerization systems (Docker, Kubernetes, etc.), understanding host network subsystem interaction
– Experience with Yandex Cloud, Digital Ocean is a plus

✦ Key Duties:
– Monitor server status (memory consumption, load)
– Close unnecessary ports, monitor DDoS attacks
– Manage internal access zones for various applications on servers
– Set up developer/service access to servers (strictly via VPN)
– Order new server resources, integrate them into the overall system
– Set up incident monitoring
– Conceal all domains/additional services on servers

✦ Conditions:
– Remote work option with occasional office visits
– Competitive salary fixed in USD
– Challenging and interesting tasks in blockchain and cryptocurrency technologies
– Work with a highly qualified team, exchanging experiences with industry experts
– Opportunity for professional growth and development in a promising technological field

The final size and format of the compensation package are discussed individually.

Contact: @daryana_bye for more details about the vacancy and the product.

When sending your CV, please share this post.

JavaScript Backend Developer (Middle+/Senior)
$3000 - $7000 USD

#vacancy #remote

Company: Non-public Team

✦ Job Description:
We are a non-public team specializing in the development and implementation of trading bots, including arbitrage bots, automation, bounty hunting, multi-accounting, and exploiting market vulnerabilities. Our reputation is flawless, and we are not involved in any scams. Our primary focus is backend development.

Key Responsibilities:
– Develop and refactor code
– Test and verify hypotheses
– Participate in discussions on implementation and vision of the final product/specific functions

✦ Development Areas:
– Bypassing site protections, anti-fraud systems - KF, Akamai, deobfuscation, fingerprinting
– Solana parsing, geysers, nodes, high-speed bots, snipers, DCA, MEW, frontrunning
– Trading bots on exchanges/perp DEXes via API/backend through cookies
– NFT marketplaces - Solana, EVM networks
– Nodes, depins, automation with dedicates

✦ Conditions:
– Salary: $3000 - $7000, negotiated individually with each candidate
– Full-time work format with an approximate schedule of 8-16 UTC+0
– Remote work

Contact: @imreddit