Top Software Engineer Jobs in Romania

Develop and maintain scalable backend web applications using Python, Django, and Django REST Framework. Design APIs, integrate frontend and server-side logic, manage databases, optimize application performance and security, write tests, troubleshoot technical issues, and deliver system upgrades and new features in collaboration with frontend and QA teams.

The Senior Software Developer will design and develop Real-Time SDK features, automate deployment, and collaborate with teams to deliver high-quality software solutions.

The Senior Software Developer will design and develop features for a Real-Time library, ensuring high-quality code and collaboration with teams while following Agile methodology.

Owns end-to-end test strategy, designs scalable backend and UI automation frameworks, integrates automated testing into CI/CD pipelines, performs exploratory testing, and advocates for testability and reliability across engineering and product. The role requires strong programming, Kubernetes and distributed-systems knowledge, debugging ability, and cross-functional ownership in a fast-moving startup.

Build and evolve scalable Scala and Java back-end services, distributed systems, APIs, and asynchronous data-processing pipelines for healthcare and diagnostics workflows. Responsibilities include architecture decisions, performance and reliability improvements, testing, code reviews, collaboration with product and DevOps teams, technical discovery, and mentoring engineers.

Develop and maintain Java and Spring backend services, REST APIs, integrations, and platform functionality for a large-scale certificate lifecycle management platform. Collaborate with Product Management, QA, DevOps, and engineering teams while troubleshooting production issues and contributing to design reviews, testing, documentation, security, scalability, and continuous improvement.

Design and develop the core vCluster Platform, focusing on Kubernetes internals, tenant isolation, container orchestration, and scalable resource-sharing systems. Build high-performance Go software, own features from technical design through release, solve complex systems-architecture problems, and contribute to open-source projects. The role requires autonomous technical leadership, active collaboration with the Kubernetes community, and experience in high-growth startup environments.

Design and build the vCluster Platform using Kubernetes internals and Go. Own features end to end from technical design through release, solve complex systems architecture problems, contribute to open-source projects, and develop scalable tenant isolation and resource-sharing solutions. The role requires autonomous technical problem solving, strong Kubernetes expertise, and participation in a high-growth startup environment.

Develop and support high-performance network software and custom Enea Qosmos DPI/TI modules throughout the project lifecycle. Responsibilities include feasibility analysis, protocol reverse engineering, feature development, automated testing, profiling, benchmarking, documentation, customer integration, troubleshooting, and post-deployment support. The role requires Linux-based C development, concurrent programming, networking expertise, and occasional customer-site collaboration.

Leads an engineering team delivering strategic applications for the LSEG Workspace platform. Responsibilities include requirements gathering, architecture, implementation, testing, integration, iterative releases, operational reliability, monitoring, cross-functional collaboration, technical strategy, governance reporting, mentoring, recruitment, and continued hands-on coding. The role also drives product and technology vision, supports Agile delivery, manages complex development cycles, and promotes AI-enabled tools for productivity and decision-making.

Own the frontend architecture and production delivery of a multi-brand consumer platform built with React, Next.js, and TypeScript. Responsibilities include creating a configurable multi-brand system, owning a design system and component library, converting AI-built prototypes into production features, using AI coding agents, and ensuring high UI quality, performance, accessibility, and Core Web Vitals. The role requires autonomous end-to-end ownership and daily production coding.

Build and maintain Ergodic AI’s AI platform across back-end and front-end systems. The role involves developing with Python web frameworks and JavaScript/TypeScript, integrating with client technology stacks and workflows, applying AI, ML, and LLM concepts, and contributing to DevOps, cloud deployment, testing, and infrastructure practices. As an early-stage hire, the engineer will help shape the product and solve complex data and AI challenges.

Develop, test, maintain, and refactor .NET applications, APIs, frontend features, and SQL queries for real estate software products. Investigate issues, improve performance and reliability, review code, collaborate with product and QA teams, and participate in Agile planning and technical discussions. The hybrid role requires working from the Cluj-Napoca office at least weekly, increasing to two days per week in January 2027.

Design and implement large-scale browser-based rendering infrastructure to execute and extract structured content from JS-heavy web apps. Improve rendering quality, performance, cost, and throughput at internet scale and productionize rendering research.

Develop and deploy reliable C# and .NET-based Interactive Response Technology systems for clinical trial randomization and drug supply management. Responsibilities include reviewing requirements, creating technical documentation, troubleshooting production issues, managing deployments across environments, and contributing innovative solutions to product research and development. The role emphasizes patient safety, clinical data integrity, maintainability, and collaboration with cross-functional project and support teams.

Design and develop SharePoint Online and Microsoft 365 applications using SPFx, React, and TypeScript. Build custom web parts, extensions, and integrations with Microsoft Graph, REST APIs, Entra ID, and Azure services. Ensure scalable, secure, maintainable solutions while collaborating with customers, stakeholders, business analysts, and architects. Contribute to engineering standards, Agile delivery, knowledge sharing, mentoring, and responsible use of AI productivity tools.

Build and operate internal platform software, including data ingestion pipelines, backend APIs, AWS infrastructure, SDKs, dashboards, and analytics tools. Own systems end to end from architecture through deployment, monitoring, and incident triage. Partner with hardware, firmware, and manufacturing teams to deliver reliable tooling and make system design decisions involving schemas, APIs, storage, and scalability.

Build and own React Native features for Kraken’s consumer mobile app, from product discovery through launch, measurement, and iteration. Partner with Product and Design to create responsive, trustworthy financial experiences using dynamic or real-time data. Guide development for a new Asian-market app, including regional UX, connectivity restrictions, vendors, and telemetry. Contribute to architecture, performance, reliability, code reviews, and product engineering standards.

Design, develop, test, troubleshoot, deploy, and maintain enterprise MuleSoft integrations, APIs, and connectors using the Anypoint Platform and CloudHub. The role involves integrating ERP, CRM, databases, cloud platforms, and third-party applications; optimizing scalability and performance; documenting technical processes; participating in code reviews; collaborating with testing teams; and mentoring junior developers.

Build and ship backend features for enterprise Coder deployments, including database migrations, observability, reporting, auditing, security, scalability, and reliability improvements. Investigate production issues, resolve operator problems, document designs, participate in code reviews and RFC discussions, and join on-call rotations. The role requires professional Go development, concurrency knowledge, SQL expertise, debugging ability, and strong communication.

Develop and maintain user-facing React.js features, reusable components, and front-end libraries. Translate designs into performant interfaces, collaborate with product and backend teams, write tests, debug production issues, and maintain current React and front-end development practices. The role requires strong JavaScript expertise, familiarity with Flux or Redux, RESTful APIs, modern build tools, Git, and effective communication skills.

Own the architecture and delivery of customer-facing Rust backend services for trading, payments, and crypto experiences. Lead ambiguous, cross-team initiatives from concept through launch, shape product roadmaps, mentor engineers, review designs, and establish engineering standards. The role requires deep expertise in asynchronous Rust, distributed systems, RPC, Kafka, and event-driven architectures, plus an AI-first development approach and strong product engineering mindset.

Designs, develops, and executes automated software tests for cybersecurity platform features. Builds and maintains scalable test and build automation frameworks using Python and JavaScript, tests front-end and backend components, troubleshoots production issues, participates in code reviews, and improves software quality processes. Collaborates with engineering, product management, architecture, and cybersecurity research teams to deliver reliable, scalable products.

Tests and validates clinical trial software to ensure patient safety, data integrity, and compliance with protocols and company procedures. Develops risk-based validation plans, authors and executes test scripts, documents defects, and tracks resolutions. May lead project testing by coordinating testing activities, managing deliverables, supporting team members, and ensuring timely, high-quality study builds.

Build and maintain Elastic integrations for AI ecosystems, including the MCP server, agent skills platform, CLI, language clients, and third-party integrations. Develop primarily in Go, with Rust and other languages, while improving tooling, evaluation, correctness, usability, and developer experience. Collaborate with product teams, external partners, and a distributed engineering community to shape and deliver platform capabilities.