Backend Software Engineer

Department: [New] Engineering

Location: Bucharest

Employment Type: FullTime

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

🚅 Commuter Benefits

🌴 Flexible Time Off

🥙 In-Office Group Meals

🧠 Learning & Development Stipend

🌎 Company Sponsored Conferences & Events

🎧 Books & Audiobook subscription with Bookster