Top Software Engineer Jobs in Bucharest

This role involves developing scalable back-ends and microservices, creating optimal architecture, and collaborating with teams to build resilient APIs and systems while ensuring performance and stability.

Design, implement, test, deploy, and maintain cloud-native full-stack features. Collaborate with cross-functional teams, follow software engineering best practices, participate in code reviews, troubleshoot issues, and leverage AWS and event-driven architecture to build scalable, maintainable applications.

Senior full-stack engineer responsible for designing, implementing, and maintaining scalable brokerage systems. Build and enhance gRPC microservices and React admin UIs, support regional operations and incident command, mentor engineers, collaborate with global teams, and ensure reliability and scalability for multi-market trading infrastructure.

Design and build highly scalable, low-latency market data systems and APIs. Implement backend services, influence architecture, maintain test coverage, participate in code reviews, troubleshoot incidents, and occasionally be on-call. Work spans streaming and historical market data endpoints and developer-focused API improvements.

Verify customer software by following technical documentation to build and test across multiple languages and OSs. Diagnose and resolve build issues, perform feature testing, analyze requirements, communicate with stakeholders, and improve verification processes.

Provide first-line technical support for a Next.js/React/Node.js/TypeScript/Supabase application: reproduce and fix bugs, deploy TypeScript fixes, improve reliability and performance, communicate solutions to customers, collaborate with Product/QA/Engineering, and contribute to documentation and monitoring.

Design, build, and maintain scalable backend systems with a focus on the CMS. Develop APIs and microservices, ensure performance and reliability, drive technical standards, support CI/CD and deployments, lead technical discussions, and collaborate with product and engineering teams to deliver robust backend solutions.

Lead technical direction for the Data Fabric domain: design scalable Angular/TypeScript solutions, mentor engineers, reduce technical debt, work across frontend and backend, and drive resilient, performant data pipelines and cloud-native architectures in AWS.

The Software Development Engineer I will design and implement microservices, improve system performance, and mentor junior engineers. Responsibilities include coding, debugging, and developing features from design to deployment in a remote setting.

Develop and maintain transactional data integration pipelines (connecting SAP to Zalando systems), build RESTful APIs and event-driven integrations, monitor production pipelines, troubleshoot and improve performance, support day-to-day operations, and collaborate with cross-functional teams to resolve integration challenges.

Lead development and maintain complex SAP BRIM applications within S/4HANA. Deliver backend and full-stack work using ABAP (RAP), SAP CAP/Node.js and BTP extensions, ensure clean-core side-by-side extensions, mentor junior engineers, and evaluate automation and AI integration opportunities.

Design, build and maintain transactional data integration solutions connecting SAP to Zalando systems. Develop RESTful APIs and event-driven integrations, optimize batch and streaming performance, ensure production reliability, and mentor engineers through code review and knowledge sharing.

Develop and enhance MAAS core components, improve architecture, collaborate across teams, and ensure high standards in documentation and CI practices.

Design and implement core Web3 protocol features and secure smart contracts in Solidity. Integrate blockchain solutions with cross-functional teams, ensure scalability and performance, stay current on EVM internals, conduct code reviews, and mentor junior engineers.

Design and implement a video processing engine, develop a cross-platform rendering engine, integrate systems, and optimize performance while collaborating with other engineers.

Design and implement real-time telemetry pipelines and fault-tolerant integration layers between IT and OT systems for datacenter power and grid-aware workload control. Own architecture and delivery of safe, reliable control systems from edge to control plane.

The Software Verification Engineer ensures software integrity and reliability through verification processes, collaborating with teams while adapting to various development tasks across backend, frontend, and DevOps.

Lead architecture and backend development for the vCluster platform by designing and implementing Kubernetes-native solutions in Go, owning features end-to-end, contributing to open-source, and solving deep systems challenges around multi-tenancy, isolation, and GPU infrastructure.

Lead rapid prototyping, architectural research, and complex technical projects for a Kubernetes virtualization platform. Partner with the CTO to shape product direction, integrate new technologies, and occasionally engage customers to translate needs into engineering solutions. Provide technical leadership beyond coding and mentor the team.

Architect and build core backend components of the vCluster platform by working deeply with Kubernetes internals. Write high-performance Go code, take end-to-end ownership from design to release, contribute to open-source projects, and solve complex systems and multi-tenancy problems for GPU and Kubernetes-based infrastructure.

Be the hands-on technical owner of the LiteAPI product: design, implement, and operate backend/API infrastructure, lead technical decisions, work closely with product, stakeholders, and customers, and mentor engineers while shipping high-impact features in a fast-moving startup.

Develop core backend components for a blockchain network, focusing on reliability and scalability, mainly using Rust. Ensure code quality through testing and debugging.

The Senior Full-stack Engineer will design and build features in TypeScript, driving projects with a product mindset and collaborating in a dynamic startup environment.

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.

Build and own end-to-end features for Chainguard's AI-enabled CI/CD and supply-chain security products. Design, implement, and iterate on integrations like hardened GitHub Actions, container tooling, and agentic AI features. Drive architectural decisions, collaborate with Product and front-end teams, and ship secure, production-ready developer tools.