Top Software Engineer Jobs in Bucharest

Develop and maintain CrowdStrike’s semantic data modeling framework, including data modeling tools, transformation pipelines, code generation, metadata catalogs, and query-language infrastructure. Design performant distributed cloud systems, developer-facing APIs, and tooling while collaborating on language and compiler design. Own features through delivery and ongoing maintenance, mentor developers, improve architecture and performance, and apply rigorous testing across unit, integration, end-to-end, and property-based methods.

Design, develop, test, deploy, and maintain responsive front-end applications using JavaScript frameworks such as Angular and React. Analyze requirements, integrate APIs, implement accessible UI designs, troubleshoot defects, and optimize performance. Collaborate with product owners, backend engineers, QA, and global technology teams in an Agile environment. Participate in code reviews, CI/CD, documentation, security practices, and continuous improvement while contributing to engineering standards and technical innovation.

Build and maintain backend integrations with banks and fintech partners, shared infrastructure, APIs, and financial workflows. Own projects from technical design through production support, develop reusable components, ensure correctness and reliability, investigate distributed-service issues, participate in on-call rotations, and collaborate across engineering, product, and financial operations teams.

Designs, develops, and executes component-level, interface, integration, and software verification tests for automotive embedded systems. Responsibilities include analyzing architecture and design specifications, creating automated test solutions, measuring test coverage, documenting defects, supporting root-cause analysis, and validating software across connectivity domains. The role requires embedded software testing experience, C and C++ proficiency, test automation expertise, automotive domain knowledge, and familiarity with software modeling and interface documentation.

Designs, develops, and executes component-level and software interface tests for embedded automotive systems. Responsibilities include analyzing architecture and design specifications, defining verification criteria, creating automated test solutions, measuring coverage and traceability, documenting defects, and supporting root-cause analysis. The role requires embedded software development and automotive testing experience, strong debugging skills, and familiarity with C, C++, Google Test, pytest, Robot Framework, and modeling tools.

Develop and maintain CaseView content, JScript automation, and C#/.NET integrations for financial reporting software. Build scripts, document logic, REST API integrations, and data mappings; maintain XBRL/iXBRL tagging; debug complex dependencies; and create automated workflows. Collaborate with QA and product teams to deliver accurate reporting solutions supporting IFRS and local GAAP requirements.

Build and operate production-grade agentic AI systems and backend microservices for Charlotte AI and Agentic SOC products. Responsibilities include LLM integrations, agent orchestration, model evaluation, MLOps pipelines, inference scaling, security safeguards, observability, and production reliability. The role provides technical leadership, architecture direction, mentoring, and cross-functional collaboration while remaining hands-on with code.

Design, develop, deploy, monitor, and maintain Java/Kotlin microservices powering MobileID and digital identity wallet solutions. Build REST APIs, run services on Kubernetes, contribute to delivery platforms and architecture decisions, and strengthen authentication, security, and key-handling capabilities. The role owns services end to end in production and involves collaboration across engineering teams.

Develop and maintain business applications and study configurations for clinical trial operations. Responsibilities include coding, database development, unit testing, defect diagnosis, documentation, peer reviews, source control, deployments, site support, and collaboration with project and solution teams. The role follows SDLC practices, quality systems, GCP, 21 CFR Part 11, SOPs, and global regulatory requirements while meeting project deliverables and service-level targets.

Build and maintain end-to-end ERP features across Django backend services and Next.js frontend applications. Develop models, APIs, database migrations, tenant isolation, and row-level security; understand legacy C++ desktop behavior; write tests, monitor production releases, conduct code reviews, and collaborate with senior and junior engineers. The role requires independent delivery, strong communication, attention to quality, and a focus on reliable, performant systems.

Develop and maintain high-quality Android applications using Kotlin, applying clean architecture, performance optimization, testing, and scalable design principles. The role involves integrating RESTful APIs, maintaining CI/CD pipelines, using version control, and collaborating within Agile/Scrum teams. Candidates need strong Android SDK, Jetpack, Android Studio, and Gradle expertise, with opportunities to work on cloud-integrated gaming technology platforms.

Design and build Go services for Telnyx’s serverless platform, function deployment pipeline, global control plane, and edge infrastructure. Own backend APIs, resource lifecycles, workload deployment, asynchronous workflows, observability, and reliability. Work with Kubernetes, distributed systems, relational databases, and multi-region services. Improve developer experience through APIs, CLI tooling, and clear error handling, while participating in on-call and diagnosing production performance and reliability issues.

Design and implement robust Rust and C++ services and libraries for trading, payments, and cryptocurrency systems. Build scalable, low-latency distributed systems, network services, and asynchronous applications supporting revenue-critical infrastructure. Collaborate with product and engineering teams, debug across the operating system, network, and application layers, and take end-to-end ownership of reliable, secure, and high-performance systems.

Design, build, operate, and maintain scalable distributed systems supporting CrowdStrike’s Intelligence pipelines. Gather requirements from analysts, develop processing and data integration systems, make autonomous architecture decisions, maintain Go and Python codebases, deploy production services, document solutions, train users, and communicate technical details effectively. The role requires independent execution in a geographically distributed team and includes opportunities to work with cloud platforms, APIs, web interfaces, malware analysis, and AI technologies.

Own an Android IoT application end to end, including Kotlin and Firebase architecture, implementation, releases, troubleshooting, code quality, testing, documentation, and long-term maintainability. Collaborate with product, design, backend, QA, and support teams while managing production incidents, firmware and APK rollouts, device fleet operations, security, stability, and continuous improvement. The role also requires Flutter experience, stakeholder management, discovery leadership, and responsible use of AI tools.

Build and operate foundational backend systems powering a globally distributed ecommerce search platform at massive scale. Responsibilities include designing high-traffic, highly available services, improving performance and reliability, managing deployment automation, capacity planning, observability, and production operations. The role involves working across the technology stack and collaborating within an ownership-driven engineering team.

Build and maintain a scalable React component library and design system integrated with a custom CMS. Deliver accessible, responsive, pixel-perfect interfaces, establish frontend architecture and coding standards, document reusable components, optimize performance and developer experience, and mentor engineers. Collaborate closely with design, product, marketing, and engineering teams across multiple fast-moving initiatives.

Develop and maintain reliable frontend banking applications using TypeScript or JavaScript and React. Design maintainable architectures, collaborate with financial experts, improve application quality, support users, and contribute to testing, builds, deployments, and technical decisions. Participate in Agile delivery, knowledge sharing, pair programming, and team development while optimizing client-facing banking tools, web services, and frontend core components.

Develop and maintain scalable Java backend applications and microservices with Angular, focusing on performance, reliability, testing, and clean code. Design event-driven systems, optimize SQL and database integrations, and support Docker, Kubernetes, and CI/CD deployments. Participate in architecture discussions and code reviews, use AI development tools responsibly, and mentor junior developers while collaborating in Agile teams.

Design and build APIs, full-stack applications, and accessible user interfaces using C#/ASP.NET Core and Angular. Collaborate with product, UX, and R&D teams; write unit, integration, and end-to-end tests; conduct code reviews; continuously deploy applications; and improve frameworks, libraries, testing practices, and CI/CD processes.

Build and operate full-stack systems for an AI-powered offensive security platform. Responsibilities include developing React frontends, TypeScript APIs, Kotlin and Go backend services, deploying on AWS, designing scalable systems, optimizing databases, supporting production, and owning features from concept through deployment. The role involves close collaboration with AI and security researchers in a fast-paced remote startup.

Design, implement, and scale Rust services and libraries for trading, payments, and crypto. Build reliable, high-performance distributed systems, collaborate on architecture, write testable async network code, and own production systems end-to-end.

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

Build and maintain developer tools across SDKs, React Email, CLI, MCP, integrations, and supporting backend services. Collaborate on APIs, compatibility, testing, releases, documentation, and shared tooling. Support developers through GitHub issues and pull requests while designing reliable interfaces, error handling, and backward-compatible experiences. The role also involves operating systems with authentication, retries, rate limits, queues, monitoring, and error recovery.

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.