Backend Software Engineer

Location: Bucharest Workplace: Hybrid As an engineer focused on backend systems at Alchemy, you'll be working with one of the most sophisticated and high-throughput distributed systems in the blockchain world. You'll focus on architecting and building new systems as well as improving existing ones for a platform that supports millions of users globally. You'll have the autonomy to shape technical solutions, influence architectural decisions, and own services throughout their lifecycle. WHAT YOU'LL DO - Design, build, and maintain backend infrastructure, APIs, and services at scale. - Own the architecture and implementation of distributed systems behind high-volume, low-latency APIs. - Solve hard scalability, latency, and performance problems in live production systems. - Lead system design discussions and shape the direction of our backend architecture. - Set the best practices for backend development—throughput, reliability, and latency. - Validate performance through automated testing, benchmarking, and production-driven improvements. - Trace production issues across services and the full stack, and ship fixes that durably improve reliability. WHAT WE'RE LOOKING FOR - 5+ years of relevant industry experience. - BS/BA degree in Computer Science or equivalent practical experience. - Experience designing, building, scaling, and maintaining core backend components - Ability to solve complex design, scalability, latency, or performance problems in high-throughput, low-latency production systems. - Production experience with Java, Rust - Experience in cloud-native environments, particularly AWS. - Experience with managed Kubernetes platforms such as Amazon EKS is a plus. - Comfortable working across the stack, with a willingness to dive into infrastructure and platform challenges when the problem calls for it. - Experience building highly available and scalable distributed systems. - You're a self-starter who takes ownership, moves fast, and knows when to obsess over the details—and when it's time to ship. - Curiosity about emerging technologies and a desire to continuously learn and explore new ideas. - Web3 experience, a plus - Founded a company or built side projects, a plus - Experience in startups, a plus BENEFITS & PERKS 🏥 Private Health Insurance 💪 Gym Reimbursement 🌴 Flexible Time Off 🥙 In-Office Group Meals 🧠 Learning & Development Stipend 🌎 Company Sponsored Conferences & Events 🎧 Books & Audiobook subscription with Bookster https://landing.bookster.ro/