Jobs Rust

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.

We are building a talent pool of Solana Developers for upcoming outstaff projects with international clients 🚀.
 

This is part of our candidate pipeline — there is no specific project at the moment, but once a suitable opportunity becomes available, you'll be matched based on your skills and experience.
 

We're looking for developers with hands-on Rust and Anchor experience who understand Solana's execution model and can build reliable on-chain programs and off-chain infrastructure for production systems.

 

🛠️ Key Responsibilities

🔹 Design, develop, and maintain Solana programs using Rust and Anchor

🔹 Work with PDAs, CPI, authority and signer patterns

🔹 Implement proper account validation, ownership checks, and custom errors

🔹 Write TypeScript / Node.js off-chain integration scripts

🔹 Integrate with Solana DeFi protocols: Jupiter, Jito, and others

🔹 Write unit tests on localnet and integration scripts on devnet

🔹 Build off-chain services: WebSocket subscriptions, bots, background workers

🔹 Communicate directly with international clients in English

📋 Requirements

🔹 2+ years of commercial experience with Rust and Solana on-chain development

🔹 Confident use of the Anchor framework

🔹 Solid understanding of the SVM (Solana Virtual Machine) execution model

🔹 Experience with PDAs, CPI patterns, and account validation

🔹 Proficiency in TypeScript / JavaScript for off-chain tooling

🔹 Hands-on experience with solana-web3.js and SPL Token

🔹 English: B2+

🔹 Ability to work independently

✨ Nice-to-Haves

🔹 Experience with Token-2022 (fees, metadata pointer, freeze authority)

🔹 Familiarity with Raydium AMM / CLMM or Meteora

🔹 Hands-on experience with Jupiter or Jito integrations

🔹 Security-aware development mindset

🔹 Prior experience deploying to Solana mainnet

🌱 Why Join Our Talent Pool?

🔹 Real Solana Engineering — production-grade on-chain programs, not demos

🔹 International Clients — teams across Europe and North America

🔹 Remote & Flexible — outstaff format, async-friendly

🔹 Blockchain-First Team — we speak the same language

🔹 Fast Matching — when the right project appears, we move quickly

✨ Why This Is a Great Opportunity

🔹 Real-world exposure — every project is different: different chains, different protocols, different challenges

🔹 Outstaff done right — we stay involved, support you throughout the engagement, and match you only where your stack truly fits

🔹 Keep growing — instead of running out of things to do at one company, you move to the next challenge

📬 What Happens After You Apply

🔹 Our team reviews your profile within a few business days

🔹 If there's a good fit, we'll schedule a brief intro call — to learn about your background, stack, and what you're looking for

🔹 After the call, you'll join our talent pool and we'll reach out proactively once a matching project comes up

⚠️ Important

🔹 This is a talent pool position (pipeline)

🔹 No specific project at this moment

🔹 You'll be contacted once a suitable opportunity becomes available

At FuturiX Solutions, we connect skilled blockchain engineers with international Web3 clients — matching you to projects where your expertise matters most 🌐⚙️

We're building analytical instruments for traders, brokers, and retail investors — real-time tools that make sense of the US stock market as it moves. Startup pace, real infrastructure, direct customer impact.

We build with AI in the loop — our engineers use it to move faster and explore further, and we expect the same from you.

What You'll Do

• Build the real-time data layer: ingest market feeds, process tick data, serve low-latency responses to the UI that has to be right and fast at the same time
• Own the customer-facing side: charts, dashboards, analytical instruments that traders and brokers use to make decisions — in Rust where it needs to be fast, in JS/TS where the customer sees it
• Bridge the gap between the high-throughput backend and what renders on screen — you understand both sides and can make them work together without throwing the problem over the wall
• Use AI tools actively in your daily work — code generation, debugging, architecture exploration — and bring genuine curiosity about what they can and can't do

What We're Looking For

Must have:

• Rust — production experience, comfortable owning performance-critical services
• JavaScript or TypeScript — shipped customer-facing interfaces that real users interact with
• Experience with real-time or streaming data — you understand what it means when latency matters and data accuracy is non-negotiable
• You actively use AI tools in your daily workflow and can describe how they've changed the way you work — with genuine curiosity to go deeper
• 3+ years of professional software development, with meaningful time on systems where correctness and performance are both required

Nice to have (we'll work through the rest together):

• Financial domain: trading, market data, order book mechanics, price feeds
• WebSockets or SSE for real-time UI updates
• WebAssembly — especially Rust compiled to WASM for browser performance
• Familiarity with market data protocols or feeds (FIX, broker WebSocket APIs)
• Experience with high-throughput message systems (Kafka, Redpanda, or similar)

Main requirements

Candidates should ideally be based in Krakow. We may also consider strong candidates from other locations who can travel to Krakow regularly. The company currently has team members who come to Krakow approximately once a month for several days.

Requirements

• Strong, demonstrable expertise in Rust — async/concurrent code with tokio, trait-based abstractions, error handling, performance-sensitive code paths
• Deep understanding of Ethereum architecture: transactions, blocks, gas mechanics, ERC-20 tokens, DEX mechanics, MEV supply chain (searchers, builders, relays)
• Experience building and operating systems that handle real money or critical infrastructure — failure modes, kill switches, monitoring, rollback plans
• PostgreSQL proficiency: query optimization, high-throughput time-series schema design, migrations
• 5+ years of software engineering experience with complex backend systems and end-to-end technical ownership

Senior Individual Contributor · Onsite/Hybrid Contractor · Kraków, Poland
 

Project description (direct hire)

We're a small, technically driven team building automated trading infrastructure on Ethereum. Our system detects arbitrage opportunities, routes trades across multiple third-party venues, and submits transactions to block builders for inclusion within a single block.

We're not a pre-revenue experiment. We're profitable, backed by world-class investors, and funded by our own live trading operations. That gives us the freedom to focus on what actually matters: expanding our strategies, sharpening execution, and building infrastructure that holds up when real money is on the line.

About the role

We're looking for a senior engineer to share ownership of our core trading logic and infrastructure. This is a hands-on individual-contributor role — no managing tickets, no proxy work. You'll be equally at home writing high-performance Rust, debugging a bundle-inclusion failure on-chain, and shipping services to Kubernetes in production.

You'll work across the full lifecycle of a trade: opportunity detection and scoring → quote aggregation across multiple routers → bundle construction → submission to block builders. Because the system handles real money, correctness, safety, and reliability are non-negotiable. You'll also own the risk-management layer — the automated short circuits and kill switches that monitor P&L in real time and pull trading back when thresholds are breached.

If you think about failure modes, rollback plans, and kill switches before the first line of code, you'll fit in well here.
 

What you'll own

• Trading strategy & execution. Design and implement arbitrage detection, opportunity scoring, and execution logic inside a Rust actor architecture that processes every new block in real time.
• Liquidity routing. Build and maintain integrations with aggregator APIs and self-hosted routers — quote collection, comparison, and optimal route selection across multiple liquidity sources.
• MEV bundle construction. Build and submit bundles to block builders, optimizing for gas efficiency, inclusion probability, and profit extraction, while interacting with multisig wallets and custom smart contracts.
• Automated risk controls. Develop systems that monitor balances, detect anomalies, and autonomously scale trading deployments down via the Kubernetes API when something looks wrong.
• Production infrastructure. Operate and evolve the platform end-to-end: deploy to AWS EKS, manage multi-account environments with Terraform, build Grafana dashboards, query logs through Loki, and own production troubleshooting.
   

Our stack

Rust · tokio · revm / Foundry · alloy / ethers-rs · PostgreSQL · Kubernetes (EKS) · AWS · Terraform · Grafana · Loki · Solidity / Gnosis Safe
 

What we're looking for

• 5+ years of software engineering experience, with a track record on complex backend systems and real ownership of technical domains from concept to production.
• Strong, demonstrable Rust expertise — async, concurrent code with tokio, trait-based abstractions, solid error-handling patterns, and comfort in performance-sensitive code paths.
• A real understanding of Ethereum's architecture: transactions, blocks, gas mechanics, ERC-20s, DEX mechanics, and the MEV supply chain (searchers, builders, relays). You understand why things are designed the way they are, not just how to call them.
• Experience building or operating systems that handle real money or critical infrastructure — you reason about failure modes, monitoring, kill switches, and rollback as a default.
• PostgreSQL proficiency: writing and optimizing queries, designing schemas for high-throughput time-series data, and managing migrations.

Nice to have

• Prior MEV experience: Flashbots, block builders, bundle submission, or searcher-strategy development.
• Hands-on work with Rust Ethereum libraries (alloy, ethers-rs) or EVM simulation tools (revm, Foundry/Anvil).
• Production Kubernetes (EKS) and AWS experience — deployments, secrets management, VPC networking, Terraform.
• Smart-contract development (Solidity/Foundry), especially Gnosis Safe modules or DeFi protocol integrations.
• Familiarity with DEX aggregator APIs and the trade-offs between on-chain and off-chain routing.

Location & engagement

This is a long-term contractor / subcontractor engagement. The role is anchored in Kraków — ideally you're based there. We'll also consider strong candidates elsewhere in Poland who can travel to Kraków regularly (roughly once a month, for a few days). Several of our team members are already on the ground there.

Why this one's worth your time

Most "Web3 developer" roles are CRUD with a wallet connect button. This isn't that. You'll own a real data and execution plane, ship to production, and see the direct P&L impact of your code on a system that's already live and profitable — with the autonomy of a senior contributor and none of the big-company bureaucracy.

If that sounds like your kind of problem, get in touch and we'll share the deeper technical details and terms.

We are looking for a true Polyglot Engineer to join our team for a long-term collaboration. In the fragmented world of Web3, the ability to bridge different technologies is a superpower. We need a specialist who can architect and build the critical off-chain infrastructure that powers decentralized applications. If you are proficient in Rust but comfortable diving into C++, Python, and Node.js to get the job done, this role is for you.

Who are we?

We are Out Of The Box Systems: a Ukrainian team of passionate, battle-tested engineers and creators united by one goal—delivering real results with clarity, precision, and autonomy. We champion a flexible, pragmatic approach over rigid, static processes. While our roots and primary team are in Ukraine, we collaborate with top talent from various labor markets. We specialize in demanding fields like Rust-first development, AI Engineering, and Computer Graphics, blending performance, security, and innovation into every project. We are deeply invested in the growth of our team members, believing that a person's ability to learn and their openness to feedback are the true keys to long-term success. Our team thrives on solving hard problems and doing the heavy lifting so our clients don’t have to.

Workload

• Full-time, remote collaboration.
• Flexible schedule, with expected availability for team syncs.
• Project-based workload with a focus on clear deliverables.

Responsibilities

• Design, implement, and maintain high-performance backend services and indexers using Rust as the primary language.
• Integrate with diverse blockchain nodes and legacy systems, utilizing C++ for performance-critical modules or native bindings.
• Develop robust APIs and tooling scripts using Node.js and Python to ensure seamless interaction between on-chain data and client applications.
• Architect scalable data pipelines that can handle the asynchronous nature of blockchain events reliably.
• Act as a bridge between technologies, mentoring team members on how to effectively navigate a multi-language stack.

Required Skills

• Polyglot Proficiency: You must be comfortable working in a multi-language environment.
  • Rust: Strong proficiency for core backend logic and safety.
  • C++: Experience with systems programming, reading legacy code, or performance optimization.
  • Python: Proficiency for data processing, testing frameworks, or rapid scripting.
  • Node.js: Experience with the JS/TS ecosystem, particularly for Web3 SDKs and lightweight services.

• Backend Architecture: Deep understanding of API design (REST/gRPC), database modeling (SQL/NoSQL), and microservices.
• Distributed Systems: Understanding of eventual consistency, message queues, and handling asynchronous events.
• Intellectual Flexibility: The ability to pick the right tool for the job and adapt quickly to new libraries or protocols.
• English Proficiency: Upper-Intermediate (B2) or higher.

Preferred Skills

• Ethereum & EVM: Deep understanding of the Ethereum ecosystem, JSON-RPC standards, event logs, and ABI decoding.
• Major Chains: Experience integrating with other major networks (Solana, Near, Cosmos, or Bitcoin).
• Blockchain Nodes: Experience running or modifying nodes (e.g., Geth, Casper Node, Substrate).
• DevOps: Experience with Docker, Kubernetes, and CI/CD pipelines.
• Cryptography: Basic understanding of cryptographic primitives used in blockchain (hashing, signatures).

What you get

• The opportunity to work on complex, high-impact infrastructure projects where your versatility is a major asset.
• A transparent, friendly, and supportive team environment that values ownership and competence.
• A clear path for growth, where you are encouraged to experiment with and master new technologies.
• Competitive compensation based on your skills and experience.
• This is a long-term collaboration based on a 2-year B2B contract, reflecting our mutual investment in your growth and success with our team.

At ZentixSoft, we follow the "People over processes" principle. We believe that empowering top-tier talent is the only way to build world-class software. 

Currently, we are strengthening a Core Engineering team for one of our strategic enterprise partners. We are looking for a visionary Lead Rust Developer to drive technical excellence and architectural transformation.
 

Note: This is an Outstaffing role. You will be integrated into a long-term initiative  focused on high-performance open-source tooling, large-scale data validation, and complex system migrations.
 

The Role: You will bridge the gap between high-level business logic and low-level technical execution. Your primary focus will be on designing a robust, modular engine capable of processing industry-specific models at scale, ensuring compliance with international standards, and eliminating technical debt within the core architecture.
 

Our Expectations:

• Engineering Tenure: At least 7 years in professional software development with a history of delivering complex, production-grade systems.
• Rust Expertise: 3 years of commercial Rust experience. You should possess a deep understanding of memory safety, lifetimes, traits, and high-performance concurrency.
• Technical Leadership: Proven background as a Lead or Staff Engineer, including experience in mentoring teams and owning the technical roadmap.
• Data & Performance: Ability to design maintainable architectures for high-throughput data processing and efficient memory management.
• Engineering Rigor: Strong commitment to clean code, systematic testing, thorough documentation, and rigorous code reviews.
   

The Toolkit (Tech Stack):

• Core: Rust, Modular/Plugin-based architecture.
• Systems: High-performance data processing, API-driven component communication.
• Ops/QA: Performance profiling & benchmarking, Automated testing, CI/CD, and Observability.
   

Soft Skills:

• Execution Driver: Proactive mindset with the ability to identify stakeholders and push complex tasks to completion.
• Stakeholder Management: Excellent communication skills to sync effectively with both technical teams and business leads.
• Strategic Curiosity: A willingness to challenge existing workflows and propose innovative architectural shifts.
   

Bonus Points (Nice to Have):

• Experience with Graph-based data or Triplestores.
• Background in building cross-platform applications or modular plugins.
• Familiarity with semantic web technologies or regulated infrastructure domains.
   

Logistics & Start:

• 🚀 Start: ASAP.
• 🗣️ Language Proficiency: Upper-Intermediate English.

Про нас

Ми — міжнародна prop-trading платформа. Надаємо трейдерам капітал через челленджі та дозволяємо торгувати через MT5, cTrader, TradeLocker і власний вебтермінал.

Під капотом — близько 80 мікросервісів на Rust, event-driven архітектура на базі Service Bus, прямі інтеграції з торговими платформами.

Чим потрібно буде займатися

• Розвивати торгову платформу: trading-control, risk-management, payouts, leaderboards, дашборди трейдерів.
• Писати нові gRPC-сервіси та REST-проксі до них.
• Доробляти мости до торгових платформ: MT5, cTrader, TradeLocker — низька latency, коректна обробка ордерів і позицій.
• Інтегрувати платіжні шлюзи, KYC-провайдерів, маркетингові системи.
• Брати участь у проєктуванні архітектури.

Що ми очікуємо від кандидата

Rust: від 1 року комерційного досвіду

• Впевнене володіння ownership/borrowing, async/await, traits, generics.
• Досвід роботи з асинхронними рантаймами, gRPC- та HTTP-фреймворками, ORM/query-builder’ами, серіалізацією.
• Розуміння продуктивності: де виникають алокації, де можливі блокування.
• Чистий ідіоматичний код, типізація замість runtime-перевірок, відсутність unwrap() у production-коді.

Архітектура та інфраструктура

• gRPC + Protobuf: проєктування контрактів, зворотна сумісність.
• PostgreSQL: індекси, плани запитів, міграції, транзакції та рівні ізоляції.
• Event-driven архітектура: досвід з будь-якою шиною повідомлень, наприклад Kafka / RabbitMQ. Розуміння at-least-once, ідемпотентності, ретраїв, dead-letter.
• Docker, вміння читати CI/CD-конфіги.

Софт-скіли

• Самостійність: здатність взяти задачу на рівні «потрібно зробити ось це», декомпозувати її та довести до production.

Буде плюсом

• Базове розуміння трейдингу: CFD / Forex / Futures, ордери, позиції, маржа, P&L, leverage, stop-out.
• Досвід у prop-trading, hedge funds, брокерах або біржах.
• Досвід роботи з MT5 API, cTrader API, TradeLocker API.
• Досвід з .NET / C#.