Top Software Engineer Jobs in Bucharest

The Staff Software Engineer will lead technical direction, improving system design and mentoring others while writing code and collaborating across teams for a cloud-based generative coding platform.

As a Sr. QA Automation Engineer, you'll create test plans, perform testing, lead automation initiatives, and collaborate with teams to ensure high-quality trading platform features.

Develop and maintain scalable backend services using Graph features; optimize systems performance and security; mentor team members; ensure compliance and quality standards.

Build foundational agent infrastructure for LLM-driven developer assistant: orchestration, tool execution, context management, evaluation, and trust/permissions. Ship reliable, observable backend systems, own core infra, participate in on-call, and mentor peers while launching agentic features to customers.

Design, build, ship, and own end-to-end product features across frontend, backend, and data. Translate ambiguous product requirements into reliable, well-tested systems; deploy, monitor, and maintain production services; participate in design and architecture, code reviews, and mentor peers while working closely with product and design teams.

Design and implement core cloud platform services, control-plane components, and internal APIs. Build platform abstractions and production-grade Go tooling, drive architectural initiatives (gRPC, eventing, cluster-api), improve scalability and developer experience, and support production incidents when needed.

Join the Kubernetes product team to design and implement Kubernetes operators and addons, write high-quality Golang and Python code, debug issues, collaborate with a distributed team, mentor colleagues, and contribute to open-source integration and lifecycle management. Travel 2–4 weeks yearly for team events.

Build and maintain a distributed, fault-tolerant, high-performance block and filesystem storage system. Work on virtualization (virtio-blk, virtio-fs, QEMU, vhost-user), high-throughput VM-to-storage networking (TCP, RoCEv2/RDMA), and core storage features like replication, consensus, self-healing, and data migration. Debug and optimize performance-critical I/O paths while writing reliable, maintainable code in a collaborative team environment.

Work on YDB distributed storage and database systems to maximize performance on modern and legacy hardware (NVMe, HDD, DPUs). Reengineer components for low-latency, high-throughput workloads, profile and debug production systems, and design resilient distributed storage primitives. Collaborate on incident resolution and production deployments to support Nebius cloud services.

Design, build, and deploy large-scale distributed systems and high-throughput data pipelines. Lead architecture and technical initiatives, ensure performance, resilience, and SLAs, contribute production-quality code, and mentor engineers while collaborating with product and R&D leadership.

Design, build, and operate large-scale distributed systems and high-throughput data pipelines using Go and cloud-native technologies. Lead architecture, performance optimization, reliability SLAs, and code quality. Drive technical roadmap, mentor engineers, reduce technical debt, and collaborate with product and engineering teams.

Design, build, and deploy large-scale distributed systems and high-throughput data pipelines using Go and cloud-native technologies. Lead architecture decisions, ensure performance and resilience, contribute high-quality code, reduce technical debt, and mentor engineers while collaborating with product and engineering teams.

Design, build, and own large-scale distributed systems and high-throughput data pipelines. Lead architecture, improve performance and resilience, reduce technical debt, contribute code, and mentor engineers while collaborating with product and R&D.

Build and maintain user-facing features and interfaces for Restream web services. Design and implement UI and business logic, collaborate with product designers and engineers, perform code reviews, improve reliability and scalability, and evaluate emerging technologies.

Design, develop, and maintain desktop, web, and cloud components for civil engineering products. Architect and implement features, write unit/integration tests, perform automated testing and code reviews, improve QA and CI/CD, and collaborate within an Agile/Scrum team.

Design, build, test, and operate high-throughput, secure cloud services and microservices on AWS. Collaborate with product and architecture teams, implement automated tests, monitor and optimize backend performance, document solutions, and participate in on-call rotations.

Designs and implements enterprise-scale cloud services for AEC data infrastructure. Collaborates with product and architecture teams to deliver scalable, secure Java/Spring microservices on AWS, drives architecture and performance optimizations, ensures automated testing and monitoring, mentors engineers, and participates in on-call support.

Build front-end and back-end infrastructure for the MetaMask Debit Card: design UI/UX across clients, develop scalable APIs and services, integrate with issuers and payment networks, ensure security and high-throughput transaction performance.

Build and enhance MetaMask consumer features (Stablecoin/Earn), implement user-facing solutions across Extension, Mobile, and Web, contribute to backend APIs and middleware, ensure secure and intuitive Web3 interactions, collaborate with product and design, participate in code reviews, and maintain high code quality.

Own QA operations and release quality for civil engineering software. Collaborate with scrum teams to run manual and automated tests, design and maintain test cases, report and track defects, reproduce customer issues, automate dashboards/APIs, and improve testing processes to reduce product quality risk.

Design, implement, and maintain desktop applications, cloud services, and automation testing. Lead architecture and feature implementation, perform code reviews, write unit/integration tests, support CI/CD and DevOps, and collaborate within Agile/Lean Scrum teams to improve product quality.

Design, build, operate, and support resilient distributed platform services. Write maintainable code, troubleshoot production issues, improve reliability and observability, and assist internal teams. Participate in on-call rotations and collaborate on platform evolution.

Lead design and implementation of 2D/3D web graphics features and frontend components for an embedded web viewer. Develop a cross-platform graphics engine, evaluate new technologies, leverage AI-assisted development tools, and collaborate with architects, product managers, and distributed engineering teams to deliver performant visualization and collaboration features.

Build and own end-to-end features across Sona’s platform using AI-assisted development. Direct and correct agent-produced code, work cross-functionally, engage customers in discovery and workshops, and contribute across scheduling, payroll, HR, and mobile domains.

Build and maintain full-stack product features for Assessments, Interviews, and Learn. Drive identity and authentication systems, write clean maintainable code, perform code reviews, collaborate cross-functionally, and lead technical design discussions to deliver business-impacting features.