🚀 Step into RedStone – the fastest-growing blockchain startup – as a Backend Developer👥 About UsRedStone is a fast-growing Polish blockchain startup revolutionizing oracle infrastructure. With our 45+ person team, including over 50% senior engineers, we deliver scalable, secure, and low-latency off-chain data to smart contracts across multiple chains. We’ve secured over $6B in TVS, raised $15M in Series A funding, and were recognized by Forbes as the top VC-backed startup in Poland.Backed by leading Web3 names like Arrington Capital, Stani Kulechov (Aave), and Gnosis, our team includes alumni from Google, OpenZeppelin, and major crypto projects. We work remotely across time zones, with a Warsaw HQ for deep work and collaboration.🧠 About the RoleOur current goal is to expand our technical team with new developers, which is why our job posting is continuously renewed. We're looking to hire more than one person.As a Senior Backend Engineer at RedStone, you’ll take ownership of core components powering our oracle infrastructure — including data-fetching, aggregation, and verification pipelines, as well as blockchain node integrations and monitoring. You’ll work primarily with Rust-based systems, contribute to protocol design, and help expand our ecosystem support with a focus on high performance and reliability.This is a unique opportunity to join a rapidly growing team and make a real impact on the future of DeFi and cross-chain data availability.Our stack includes: TypeScript, Go, Rust, Node.js, AWS (CloudFront, EC2, ECS, Lambda, CloudWatch), Terraform, GCP, GitHub (with Actions for CI/CD), MongoDB, InfluxDB/Grafana, Solidity/Yul. You don’t need to know all of these — familiarity with some is a plus.✅ Job RequirementsAt least 5 years of professional experience in software developmentKnowledge of multi-layer web architecture patterns and various network architecturesPractical knowledge of async/event-driven frameworks for data processingStrong understanding of security best practicesHigh attention to detail and diligence in all tasksProven coding ability with a focus on writing readable and efficient software🌟 Bonus PointsPractical experience building distributed systemsBackground in blockchain technologies and protocols, especially within DeFiHands-on experience running blockchain nodes and working with modular blockchain architecture (e.g., sidechains, rollups)Experience in the Solana ecosystemParticipation in hackathons or programming competitions🤝 What We OfferFully remote or hybrid (center of Warsaw)Competitive salary + token allocation (after 3 months)Private healthcare & Multisport cardFlexible hours & pre-agreed paid service breaksTop-tier equipment (MacBook, external displays)Regular team off-sites, hackathons, and Web3 conferencesFull ownership over your workA rare opportunity to build foundational infrastructure for the future of finance🔗 Get to Know Us Better🌐 Website🧠 Docs💻 GitHub🐦 X💡 What’s Next?Here’s what the recruitment process looks like:Initial call – One of our recruiters will reach out to get to know you better and answer any questions.Technical interview – You’ll meet with our developers to discuss your experience, skills, and approach to problem-solving. As part of the interview, you’ll also complete an algorithmic task.Final conversation – You’ll have a conversation with our co-founders about your expectations, working style, and how we can best support your growth. After that, you’ll complete a second technical task — a live coding session.