Alchemy is hiring a Backend Software Engineer in Engineering — Bucharest. The overview below is synthesized from the employer posting on jobs.ashbyhq.com: factual requirements and scope are preserved, but prose is rewritten with editorial context. Verify details and apply via the employer link.
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.
What You'll Do
Day-to-day scope for the Backend Software Engineer as described in the posting:
- 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
What the posting highlights about the offer:
🏥 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
Build a standout application
For the Backend Software Engineer at Alchemy, reviewers look for concise evidence over buzzwords. Mirror the language of the posting sparingly, quantify support or delivery outcomes, and show how you handled ambiguity, time-zone collaboration and user empathy. Keep your resume to impact, keep your cover note to one page, and link to artifacts — tickets resolved, docs shipped, dashboards owned — that prove you can operate in a fast-moving Web3 team. Prepare to discuss a time you turned a confusing user report into a clear fix and how you measure quality in support and operations.
Web3 hiring values reliability: on-time follow-through, clear writing, and a track record of improving runbooks and tooling. Treat the application as a work sample. For interviews, be ready to walk through how you prioritize across time zones, handle a difficult user, and decide when to escalate versus resolve directly. Show how you document decisions so the next teammate benefits.
In a distributed Web3 org, trust builds through written clarity. Use the cover note to demonstrate it.