CareerPlanSign in

Backend Software Engineer

Bucharest💼 Full-time🗓 2026-07-01 → 2026-09-26

Core

Architecting and building high-throughput, low-latency distributed backend systems and APIs for a global blockchain platform serving millions of users.

Role type

Senior IC backend software engineer (distributed systems)

Builds

Scalable backend infrastructure, APIs, and services for a Web3 platform

Domain

Blockchain / Web3 / Distributed Systems

Deliverable

production ML models | product features | infrastructure

Required skills

Java, Rust, distributed systems design, cloud-native development, AWS, Kubernetes, performance optimization, system architecture

Preferred skills

Web3 experience, startup experience, side project founding

Technologies

Java, Rust, AWS, Amazon EKS

Responsibilities

Design and build backend infrastructure and APIs at scale; solve scalability and latency problems in production; lead system design discussions; set backend development best practices; validate performance via automated testing and benchmarking; trace and fix production issues across services

Seniority

Senior, hands-on IC

Sourced via ashby · Listed on CareerPlan, which tracks 70,000+ jobs from 20+ sources.