Jobs

The role is based in the Kyiv region, and we will expect you to work full-time in the office. We have a shuttle service from the nearest metro station.

About the Job

We are seeking a skilled Core Developer (Rust/ C++) for Swarm Robotics & Sensor Control with over 5 years of professional experience to join our dynamic development team. You will play a key role in building and optimizing the core architectures for the real-time control and management of robotic swarms and sensor systems. This position offers the opportunity to work with cutting-edge technologies and contribute to complex, mission-critical systems in a collaborative environment.
 

What is your Day to Day Mission:

• Design, develop, and maintain robust and scalable systems for swarm control and sensor management.
• Implement efficient communication protocols and real-time processing solutions for robotics.
• Collaborate closely with cross-functional teams to integrate backend components with robotics software and sensor networks.
• Optimize system performance, scalability, and reliability in a distributed robotics environment.
• Solve challenging problems using modern programming languages such as C++ and Rust.

• Participate in code reviews, architecture discussions, and software design decisions.

   

What you bring to the team:

• 5+ years of professional experience in backend development with a strong focus on real-time systems.
• Proficiency in Rust and C++, with a solid understanding of modern software development practices.
• Experience in building and optimizing backend architectures for distributed systems.
• Familiarity with network protocols, multithreading, and low-latency data processing.
• Knowledge of system architecture design, performance optimization, and resource management.

• Ability to work independently, solve complex technical problems, and thrive in a fast-paced startup environment.

   

Nice-to-Have:

• Experience in robotics, swarm control, or sensor integration.
• Familiarity with cloud platforms, Docker, or Kubernetes for scalable deployments.

• Understanding of embedded systems or real-time operating environments.

   

Why Quantum-Systems:

• We Stand with Ukraine
• We believe in the power of combined efforts: straightforward tech expertise paired with a customer-centric focus.
• We are industry pioneers who are ambitious, bold, and visionary.
• We push limits, think outside the box, and strive for technological excellence to shape the future of aerial data.
• We promise to be your runway for individual and professional growth.

About Us:
For last two decades our Company is committed to providing transport companies with innovative IT solutions that enhance productivity and efficiency. We have a dedicated team of 40 employees and operate across couple of EU-based countries. Our focus is on delivering practical tools in time management, on-board computing, and operation management to meet the evolving needs of the transportation sector.

Job Description:
We are seeking a skilled Rust developer with expertise in vehicle device communication and IoT integration, specifically with Azure platforms. The ideal candidate will work on developing and maintaining secure, efficient communication protocols between vehicle devices and cloud-based IoT services.

Key Responsibilities:

• Develop and optimize Rust-based applications for vehicle device communication
• Integrate vehicle data with Azure IoT services
• Improve and ensure reliable data exchange between devices and cloud platforms
• Collaborate with a multidisciplinary team to deliver high-quality technical solutions

• Participate in code reviews, technical documentation, and testing

   

Requirements:

• Proven experience in Rust programming 3+ years
• Experience with C++/C# 4+ years
• Strong understanding of IoT protocols and vehicle device communication
• Experience with Azure IoT platform and related services
• Knowledge of embedded systems and telematics is a plus

• Good problem-solving skills and ability to work independently

   

If you're passionate about IoT, vehicle communication, and Rust development, and would like to contribute to a dynamic company with a rich history in the transport sector, we want to hear from you!

We are looking for a developer who is confident working with both Rust and Python.
The project is already running: part of the codebase is written in Rust (core), while integrations and business logic are implemented in Python.

Responsibilities:

• Maintain and further develop the existing project (Rust + Python).
  
   
• Integrate Rust modules into Python (via PyO3/maturin).
  
   
• Optimize performance and fix bugs.
  
   
• Participate in fast releases and bug fixing.
  
   

Requirements:

• 1+ year of commercial experience with Rust.
  
   
• Strong knowledge of Python (3.8+, ideally with experience in data/web libraries).
  
   
• Understanding of multithreading, APIs, and system tools.
  
   
• Ability to quickly dive into existing code and deliver solutions.
  
   

Nice to have:

• Experience with CI/CD, Docker, GitHub Actions.
  
   
• Knowledge of code security and secret rotation.
  
   
• Familiarity with the data/fintech ecosystem (Pandas, Polars, etc.).
  
   

Format: Remote / Hybrid.

Our client is a fast-growing software engineering company building cutting-edge solutions in the blockchain and Web3 space. They specialize in open-source technologies and work across ecosystems such as Cosmos, Solana, and SUI, creating infrastructure and applications that push the boundaries of decentralized technology. With a globally distributed team, they foster a remote-first culture and drive innovation in the DeFi sector.
 

We’re looking for a Senior Software Engineer (Rust) with a passion for blockchain and decentralized finance to join the team and help build a new generation DeFi product. In this role, you will be at the forefront of developing high-performance backend systems, designing APIs, and integrating with leading blockchain ecosystems. You’ll play a key role in a fast-paced international environment, contributing to product architecture and taking ownership of features from concept to production.

💻 Tech Stack:

• Ecosystems: Cosmos, SUI, Solana.
• Languages: Rust, Golang, TypeScript, Move, Solidity.
• Tools: Docker, Protobuf (prost), gRPC (tonic), Grafana, OpenTelemetry, GitHub Actions, Buf.
   

🧰 You might be a good fit if you:

• Strong proficiency in Rust and Node.js for backend development.
• Deep understanding of async programming, performance, and API design.
• Proven track record of building end-to-end Rust applications.
• Proficient with Git.
• Self-starter, able to work cross-functionally and independently.
• Upper-Intermediate English or higher.
   

✨ Nice to have:

• Familiarity with the Cosmos, SUI, and/or Solana ecosystems.
• Understanding of financial technology and decentralized systems.
• Experience in web3, decentralized finance (DeFi) decentralized applications (dapps) and blockchain principles.
• Experience with continuous integration pipelines (preferably GitHub Actions, CircleCI, Travis).
• ProtoBuf, gRPC.
• Open source development experience.
• Highly organized with great attention to detail.
• Strong DegenScore.
• Bonus: Has written smart contracts in Rust or Solidity (Rust preferred, however a Solidity position will be opened shortly).
  
  🎁 We offer:
• Daily support for your technical and personal growth;
• Professional and very friendly team, that is always ready to help and support;
• Medical Insurance;
• Flexible working hours;
• Offices in Ukraine;
• All official holidays;
• Paid vacation and sick leaves;
• Legal services and 24/7 layer protection;
• Tax & accounting services;
• The company provides all the necessary equipment;
• Fitness support upon request;
• English classes up to three times a week;
• The company pays 50% of the cost of refresher courses for any employee of the company;
• Workstation space;
• Mentoring and Educational Programs;
• Regular Activities on a Corporate level (Team Buildings, Sports Events, Table Games, Tech Events);
• Advanced Bonus System.

We are looking for a Rust Engineer to join our team and help build a high-performance, blockchain-based real-time trading platform. In this role, you’ll design and scale backend microservices that process high-volume, low-latency financial data and integrate directly with the Solana blockchain.

What You’ll Do

• Design, develop, and maintain Rust microservices for Solana data integration and ETL pipelines.
• Build and optimize asynchronous APIs (e.g., Actix, async-std).
• Integrate with event streaming platforms such as Kafka or Redis Streams.
• Ensure secure handling and encryption of sensitive wallet data.
• Deploy and operate services in a Kubernetes-based, containerized environment.
• Collaborate with Go engineers, frontend developers, and other stakeholders to deliver scalable solutions.

What We’re Looking For

• 3+ years of backend development with Rust, including strong async programming experience.
• Experience integrating with blockchain platforms (ideally Solana).
• Familiarity with Kafka, REST/gRPC APIs, and PostgreSQL.
• Hands-on experience with Docker, Kubernetes, and CI/CD pipelines.
• A security-first mindset and strong attention to detail.

Bonus Points

• Direct experience with the Solana SDK in Rust.
• Exposure to time-series databases (e.g., TimescaleDB), monitoring tools (Prometheus, Grafana).
• Knowledge of stream processing, trading systems, or wallet integrations.
• Background in fintech or other highly secure, scalable environments.

Cowchain blockchain development company is actively looking for Solidity Developer to join our development team.

About us:
Cowchain have successfully completed 120+ projects mainly on EVM-based blockchains such as Ethereum, Polygon, Arbitrum, Base including Coinmarketcap leaders with 180M+ total capitalization and 20M+ daily trading volume in Move2Earn, Play2Earn and DeFi industries.

Required skills:
— Around 2 year+ commercial experience in smart contract development on Solidity
— Hardhat/truffle/Foundry
— ERC721/ERC1155/ERC20/Chainlink
— JIRA, gitflow
— Node.js experience
— Web3/Etheres libraries
— LayerZero
— PDAs/CPI, SPL Token/Token-2022, Anchor testing, program accounts

Tech stack:
— Solana (Rust + Anchor)
— JavaScript
— Blockchain EVM-compatible chains DApp development
— Smart contracts development

What will you do:
— Smart contracts development for DeFi, NFT, GameFi solutions
— Integration of smart contract to ReactJs frontend
— Bugfixes and support existing solutions
— Participate in project architecture discussions
— Build solutions from scratch as well as join on-going development process
— Have fun;) 

What we offer:
— Flexible working schedule, remote work
— Competitive salary with bonuses for activities
— Ability to dive into fast-growing blockchain/crypto industry
— Work with modern tech stack (blockchain)
— Paid vacations, sick leaves
— 100% friendly/family team

Hello!
We are Echo Labs, built on the best MEV solutions for validators in the Solana ecosystem. We are looking for a candidate ready to contribute to our project and grow with us!
 

We offer:
• Working in a team of top-tier professionals united by common goals.
• Participation in creating innovative products that shape the future of the blockchain industry.
• Structured support for professional development.
• Competitive collaboration terms.
 

Requirements:
• Experience in commercial Rust development.
• Deep understanding of the Solana ecosystem and practical experience with DeFi (V2, V4, CPMM, CLMM).
• Experience with ShredStream/gRPC.
• Analytical thinking and the ability to optimize existing technical solutions.
 

Technology stack: Rust, Solana, gRPC

We’re Expanding and Looking for Talented Developers!

Our team specializes in working with startups, starting from the earliest stages of their development. Each project we take on is a unique challenge, requiring innovative and effective solutions. That’s why we always stay at the cutting edge of technology.

We believe that productive work is only possible in a comfortable environment with excellent planning. The best solutions are built on well-thought-out architecture, quality code, and modern technologies.

If these priorities resonate with you, you’ll love being part of our team!

Requirements

• 2+ years of production experience with Rust
• Strong knowledge of asynchronous programming (Tokio, async/await)
• Experience with building cross-platform desktop applications using Tauri (or willingness to learn quickly)
• Experience integrating with external APIs (GitHub, AI services, etc.)
• Solid understanding of memory safety, concurrency, and performance optimization
• Experience working with local filesystems and developer tooling (CLI/terminal integration, xterm/wezterm)
• English proficiency sufficient for reading documentation and writing comments
• Strong communication skills and ability to work in a team
• Self-motivation to deliver effective and elegant solutions
   

Nice-to-Haves

• Basic knowledge of React or Vue.js to collaborate with frontend developers
• Experience with GPU acceleration (wgpu, CUDA, Metal/Vulkan APIs)
• Knowledge of WebAssembly (WASM) for cross-platform modules
• Familiarity with DevOps practices (Docker, CI/CD for desktop apps)
• Experience with other system-level languages (Go, C++, TypeScript)
• Familiarity with AI integration in applications (local inference, MCP protocol, etc.)
   

Responsibilities

• Develop and maintain a cross-platform desktop application in Rust (Tauri core + JS frontend integration)
• Implement deep terminal integration (xterm/wezterm) and interaction with local codebases
• Integrate AI services, GitHub APIs, and our MCP server
• Optimize application performance, including GPU acceleration where applicable
• Deliver high-quality, well-tested, and maintainable code

• Collaborate with frontend developers, Business Analyst, and Project Manager on features and architecture decisions

   

What We Offer

• Possibility to be a part of innovative startups from around the world
• Supportive, understanding, and flexible management
• Paid vacations and sick leave
• Opportunities for professional growth and learning
• A friendly and welcoming team

About the Team

• The team size is 24 members
• Well-organized development process involving project managers and QA
• Every developer specializes in their area (back-end, front-end)
• Dedicated teams for each project
• The team's internal communication languages are Ukrainian or russian

• Please include examples of your code with your application — this will save time for both you and us.
• If you have test results or any test documentation, feel free to share them as well. This will help us evaluate your skills much faster.
• A test task may be assigned before or after the interview.

Cowchain blockchain development company is actively looking for Backend Developer(Solana) to join our development team.

About us:
Cowchain have successfully completed 120+ projects mainly on EVM-based blockchains such as Ethereum, Polygon, Arbitrum, Base including Coinmarketcap leaders with 180M+ total capitalization and 20M+ daily trading volume in Move2Earn, Play2Earn and DeFi industries.

Required skills:
— At least 3-year commercial experience in the Backend development
— Node.js experience is A MUST
— Ability to use Solscan to analyze data;
— Compiling, signing and sending transfer transactions;
— Compiling, signing and sending swap transactions;
— Transaction mult-signatures
— Pump.fun / Jupiter / Raydium;
— Bignumber.js / bn.js
— Understanding of gas, priority fee, token account creation
— Meme-coin creation Pump.fum/Meteora
— JIRA, gitflow


Tech stack:
— Node.js, Nest.js, Microservices
— MYSQL, MSSQL, PostgreSQL
— TheGraph (Subgraph), Event indexing back-end
— Azure, AWS, Google Cloud
— Docker, Kubernetes

Will be a plus:
— EVM-based blockchains (Ethereum, Avalanche, Polygon, Binance Smart Chain, Velas, Hedera etc)


What will you do:
— new features development
— bugfixes and support existing solutions
— participate in project architecture discussions
— build solutions from scratch as well as join on-going development process
— have fun

What we offer:
— flexible working schedule, remote work
— competitive salary with bonuses for activities
— ability to dive into fast-growing blockchain/crypto industry
— work with modern tech stack (blockchain)
— paid vacations, sick leaves
— 100% friendly/family team

Role
 

As a Quant Developer you will be building our market making systems from the ground up — quoting engine, order management, execution, risk. You will work closely with our researcher and trader to turn models into production strategies. This role is central to establishing our market making infrastructure and directly drives trading results.

Responsibilities
 

- Develop and maintain market making engine

- Build and optimize connectivity to exchange APIs (OKX, Binance, Bybit)

- Ensure low-latency, reliable execution (Rust, async)

- Implement risk controls and monitoring

- Work with researchers to productionize signals

Requirements
 

- Strong skills in Rust (C++/Go acceptable)

- 3+ years of experience in building real-time / low-latency / high-throughput systems

- Knowledge of concurrency, async/await, memory management

- Familiarity with order books, trading infra is a plus

Perks
 

- Direct impact on production systems and PnL

- Performance-based bonus linked to firm’s trading profit

- Small, high-ownership team

- Remote-first

Hi👋

RedDuck is looking for talented Rust Developers eager to grow in the Web3 and Blockchain space.

It’s not necessary to know blockchain - we’ll teach you! It is essential to possess strong engineering skills, empathy, and a willingness to take initiative and offer innovative ideas.

Requirements ⬇️

• Degree in Computer Science or a related field, or equivalent practical experience.
• 0.5-1 year of commercial development experience.
• Proficiency in Rust.
• Basic understanding of cryptography (symmetric/asymmetric encryption, hash functions).
• Knowledge of algorithms and data structures.
• Proficiency in English (B1 level or higher).
• Strong analytical and debugging skills.
• Proactivity, empathy, and initiative.

Will be a plus ⬇️

• Any knowledge in blockchain/distributed systems/smart contracts.
• Familiarity with TypeScript/JavaScript.

Responsibilities ⬇️

• Design and implement scalable and efficient backend solutions.
• Blockchain & Smart Contracts Development:
  • Design, develop, and deploy smart contracts (e.g., Ethereum/Solidity, Polygon, BNB Chain, Solana, etc.).
  • Write secure, gas-efficient, and maintainable smart contract code.
  • Conduct unit testing, integration testing, and security testing for blockchain applications.
  • Optimize smart contract performance and ensure compliance with protocol constraints.
• Blockchain Systems & Integrations:
  • Build dApps (decentralized applications) and integrate smart contracts with frontend/backend.
  • Develop APIs and middleware to connect blockchain with traditional systems.
  • Work with wallets, oracles, and other blockchain ecosystem components.
• Security & Best Practices:
  • Perform code audits and vulnerability assessments on smart contracts.
  • Follow and enforce industry best practices in blockchain security.
  • Stay alert to known exploits, risks, and security updates in relevant ecosystems.
• Project Delivery (Outsourcing Context):
  • Collaborate with clients to translate business requirements into blockchain solutions.
  • Deliver technical documentation, architecture diagrams, and deployment guides.
  • Ensure that solutions are not only technically sound, but also meet client deadlines and expectations.
• Collaboration & Contribution:
  • Participate in code reviews, ensuring high-quality standards for blockchain code.
  • Work closely with internal teams (frontend, backend, QA) to deliver complete solutions.
• Mentor junior developers in blockchain technologies and smart contract development.

We offer ⬇️

• Comprehensive blockchain training in a supportive learning environment.
• Opportunities for professional growth and career advancement.
• Participation in challenging and innovative projects.
• Fully remote work. 
• Competitive salary.
• English language courses.
• Paid vacation and sick leave 🏖️ 🤒.
• A friendly, open-minded, and supportive team 😊.

Bitcoin-native DeFi protocol that allows users to deposit BTC and earn on-chain, auto-compounding yield, all while maintaining full control over their assets. It's a secure, transparent platform that operates on the "Bitcoin‑in, Bitcoin‑out" principle—meaning users deposit Bitcoin and receive their principal plus rewards in BTC—without needing to rely on centralized custodians.

Requirements

• 3+ years of smart contract development experience.
• Strong expertise in Solidity and Ethereum development tools (Hardhat, Foundry, Truffle).
• Solid understanding of EVM internals, gas optimization, and smart contract upgrade patterns.
• Experience with DeFi protocols, token standards (ERC-20, ERC-721, ERC-4626), and staking/yield strategies.
• Familiarity with subgraphs (The Graph) and on-chain/off-chain data flows.

• Proven track record of security best practices (reentrancy, overflow, access control).

   

Responsibilities:

• Maintain and extend existing smart contracts to support new features and integrations.
• Implement secure, optimized, and audited DeFi functionality (vaults, yield strategies, APIs).
• Fix bugs, handle production issues, and manage security escalation if needed.
• Collaborate with front-end and back-end engineers to ensure smooth integration of smart contracts with UI and APIs.
• Write comprehensive tests and documentation to ensure reliability and transparency.

What we offer:

• Remote working format
• Flexible working hours
• Informal and friendly atmosphere
• The ability to focus on your work: a lack of bureaucracy and micromanagement
• 20 paid vacation days
• 7 paid sick leaves
• Education reimbursement
• Free English classes
• Psychologist consultations

• Recruitment process:

  Recruitment Interview — Technical Interview — Client Interview

GraphDex — торговий термінал для Solana, Base та інших EVM-мереж.

У нас вже є реальні юзери, інтеграції з DEX'ами, і зараз ми нарощуємо команду.

Стек:

• Rust (Tokio, Axum, async, Anchor), частково Go
• PostgreSQL, Redis, Clickhouse
• gRPC / REST / WebSocket
• Solana SDK, Lightning, RGB, zk-proofs
• Docker, Kubernetes, CI/CD, GitHub Actions

Що треба буде робити:

• Писати нові сервіси для роботи з Solana (DEX, ордери, транзакції)
• Оптимізовувати продуктивність та роботу з БД
• Моніторинг і підтримка кластера Kubernetes
• Працювати в команді з іншими Rust- та Go-девами
• Брати участь у побудові нової архітектури і рефакторингу старих частин

Кого шукаємо:

• 2+ роки комерційного досвіду з Rust (або Go + бажання перейти в Rust)
• Досвід побудови складних сервісів або мікросервісної архітектури
• Розуміння, як працює Solana або інші блокчейни (бажано)
• Досвід у highload або Web3 — великий плюс

Що пропонуємо:

• Віддалену співпрацю без бюрократії
• Сильну технічну команду, яка цінує чистий код і здорову комунікацію
• Складні задачі на перетині Web3, блокчейну та високонавантажених систем
• Можливість впливати на архітектуру і технічні рішення

Цікавий проєкт і технологічний виклик — саме тут. Пиши — будемо раді познайомитися.

Про нас
UAITLAB — це аутсорсингова Web2/3 IT-компанія.

Посада: Rust / Solana Developer

Ми шукаємо досвідченого Rust-розробника з практичним досвідом створення програм на Solana, щоб приєднатися до нашої основної команди. Це можливість працювати над високоефективним кодом на передовій Web3 разом із командою, яка цінує креативність, точність та швидкість.

Обов’язки:

1. Проєктування, розробка та підтримка он-чейн програм Solana (смарт-контрактів) на Rust.
2. Оптимізація продуктивності та безпеки розгорнутих програм.
3. Співпраця з продуктовою та фронтенд-командами для впровадження функцій end-to-end.
4. Написання чистого, підтримуваного та добре документованого коду.
5. Участь у технічних обговореннях, архітектурі та плануванні дорожньої карти.

Вимоги:

1. Впевнене володіння Rust.
2. Практичний досвід у розробці програм для Solana (фреймворк Anchor буде великим плюсом).
3. Розуміння найкращих практик безпеки смарт-контрактів.
4. Знання Web3-гаманців, токен-стандартів та DeFi-механік.
5. Англійська мова розмовна не є обов’язковою, але для вивчення документації обов'язкова.
6. Проживання в Україні (віддалено/гібридно).

Буде перевагою:

1. Попередні внески в open-source проєкти Solana.
2. Перевагою буде знання і володіння solidity (досвід в проектах на EVM).
3. Досвід роботи з фронтендом (TypeScript/React), бекендом (Node.js).
4. Знання криптографії, токеноміки або стейкінг-систем.

Ми пропонуємо:

1. Конкурентну оплату.

2. Віддалений формат роботи з гнучким графіком.

    

   !!!Пріоритет для кандидатів з України.

Як подати заявку

• Надішліть свій GitHub, портфоліо або приклади Solana-проєктів, над якими ви працювали. 
• Відібраних кандидатів буде запрошено на коротку технічну співбесіду.

Компанія з успішним досвідом розробки та впровадження проєктів для Web2 і Web3 шукає в свою команду Senior Rust Developer. Наш досвід охоплює створення різних централізованих і децентралізованих застосунків

Основні вимоги:

• Досвід розробки в блокчейні Stellar  (ICP, Solana);

• Досвід створення смарт-контрактів на Rust;

• Вітається досвід розробки та розуміння принципів роботи реaltime-застосунків;

• Вітається знання принципів SSDLC;

• Досвід і розуміння принципів проєктування структур баз даних;

• Вітається досвід роботи з іншими мовами: JavaScript, TypeScript, Python, Solidity;

• Вітається досвід роботи з Docker, Redis, PostgreSQL;

• Вміння налаштовувати автоматизацію (Docker Compose, GitHub Actions, Ansible, Terraform);

• Впевнене володіння Git;

• Вміння працювати з операційними системами *nix;

• Бажання активно розвиватися й вивчати нове;

• Активність і вміння працювати в команді;

• Вміння писати чистий і зрозумілий код;

• Уміння зануритися в деталі та знаходити оптимальні рішення;

• Педантичність і увага до якості;

• Вміння читати й розуміти технічну документацію англійською;

• Досвід написання модульних і функціональних тестів;

• Знання української мові

Обов’язки розробника:

• Проєктування, розробка, тестування, розгортання та обслуговування смарт-контрактів на Solana.