Top Software Engineer Jobs in Bucharest

Join Canonical's OpenStack Engineering team to develop and manage Charmed OpenStack and Ceph, focusing on Python code and infrastructure automation.

The role involves collaborating with a distributed team to develop and debug software for Linux, focusing on high-quality code and system-level issues.

The role involves automating OpenSearch operations by developing features in Python, collaborating with an international team, and providing expertise on data platforms.

As a Software Engineer, you will enhance Ubuntu's cloud infrastructure, automate image delivery, and collaborate with cloud giants, delivering high-quality software features.

Develop and maintain system-level Go code, model data, and design database schema for cloud infrastructures. Collaborate with a distributed team to ensure code quality.

As a Software Engineer on the data platform team, you'll automate data platform operations, write Python code, and collaborate on solutions within a distributed team.

Support community-driven development by reviewing community PRs, improving contribution processes, debugging issues, and enhancing documentation. Collaborate with contributors and maintainers for reliable product improvements.

Develop and enhance functionalities for a climate tech platform, engaging with product teams and improving team culture.

Join a portfolio company as a Software Engineer to work on a performance-sensitive stack for crypto's dark pool, focusing on full onchain systems.

Work within a cross-functional product squad to design, build and maintain backend services, mobile features and APIs. Participate across the SDLC, write well-tested code, use CI/CD, containers and cloud infrastructure, and collaborate in Agile teams to improve engineering practices.

Design, develop, and maintain Java-based backend microservices with Spring Boot. Implement RESTful APIs, optimize SQL/database interactions, use event-driven architectures (Kafka), containerize with Docker/Kubernetes, integrate CI/CD, leverage AI code companions, perform code reviews, participate in architecture discussions, and mentor junior developers.

Build features, prototypes, and demos using modern AI coding tools and agents; iterate prototypes into reliable, scalable production; direct and evaluate AI coding agents; collaborate closely with founders and senior engineers; explore and improve AI development workflows to accelerate product delivery.

Design, build, and maintain the foundational, high-scale search engine systems powering billions of daily requests. Work on backend infrastructure, deployment automation, capacity planning, observability, performance-critical code, and production operations while collaborating with a team to ensure reliability and scalability.

Build and architect Base360.ai: design and launch booking, pricing, payments, operations, and AI-powered automation. Integrate platforms (Airbnb, Stripe, Twilio, OpenAI), scale systems internationally, and embed AI workflows to automate operations and optimize revenue.

Develop and maintain high-performance Angular front-end applications used by bank tellers for cash transactions. Deliver reliable, well-tested code, troubleshoot performance issues, collaborate with cross-functional teams, provide technical consultancy, drive improvements and mentor junior colleagues.

Develop, test, and maintain customer‑facing web applications and services using .NET and front‑end frameworks. Collaborate in Agile teams, perform unit/integration testing, support production environments, and follow best practices for code, documentation, and version control.

Develop and implement cryptographic algorithms (including post-quantum) for secure embedded libraries, collaborate with architecture and hardware teams, perform coding, testing, code reviews and releases, and apply hardware/software countermeasures against side-channel and fault attacks.

Build and maintain API integrations and the connectivity platform linking EV chargers, vehicles, and OEMs. Improve reliability, observability, and scalability; develop automations and internal tools for monitoring and triage; define SLAs and alerting; collaborate with product and engineering teams to balance stability and delivery.

As a Software Engineer, you will design and develop applications, write clean code, engage in code reviews, optimize systems, and explore new technologies in a remote team.

Build and maintain a globally performant, fault-tolerant microservices-based Data Integration platform on AWS. Contribute to architecture improvements, implement backend services using Java and the Spring ecosystem, follow TDD and CI/CD practices, collaborate in a scrum team, and ensure high availability and zero message loss for production data pipelines.

Build and own end-to-end features across backend and frontend: design backend services and data models (Python/Django), implement RESTful APIs, create reusable frontend components (TypeScript/React), write tests, participate in code reviews, maintain production reliability and security, and collaborate with product and design.

Develop and maintain C# applications, design robust solutions with the team, write unit tests and occasional end-to-end test plans, conduct code reviews, and diagnose and resolve technical issues to ensure code quality and reliability.

Design and implement Python-based AI/ML backend services, integrate models with production systems, optimize AI application performance, collaborate with data scientists, and improve development processes.

Design and implement scalable Python-based AI/ML software, integrate models with existing systems, optimize AI application performance, collaborate with data scientists and developers, and improve development processes.

Design, build, and release production-ready software using C# and Angular. Focus on clean code, backend services, and API development in an agile team.