Backend Software Engineer

As an engineer focused on backend systems at Nimbus Data Systems, 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 https://landing.bookster.ro/