Top Software Engineer Jobs in Berlin

Build and ship production iOS features for an AI-powered travel and expense platform. Responsibilities include designing conversational and AI-driven UX, architecting Swift-first applications with modern concurrency, developing context-aware and real-time experiences, integrating networking and LLM capabilities, supporting offline functionality and push notifications, and using analytics and experimentation to improve quality. Collaborate with product, design, and backend teams while maintaining secure, well-tested code.

Design and develop scalable backend systems for corporate expense, payments, issuing, ledgers, policy management, administrative controls, and accounting integrations. Own features end to end from architecture and development through deployment, monitoring, troubleshooting, and operational support. Collaborate with global cross-functional teams while promoting engineering best practices in testing, documentation, reliability, performance, scalability, and code quality. Integrate AI capabilities into intelligent product features and engineering workflows.

Build and enhance Navan’s expense platform across backend services, web experiences, APIs, event-driven money flows, receipt intelligence, and LLM-powered agents. Improve extraction quality, latency, cost, safety, observability, and financial-system correctness. Partner with Product and Design, own production quality, write technical designs, review code, and mentor engineers.

Build and maintain Grammarly's macOS product: design robust architecture, implement complex UI/UX with Swift/AppKit/CoreGraphics, optimize performance and latency for large documents, and develop shared Apple platform components while applying strong engineering best practices.

Lead modernization of HERE’s mapmaking platform by defining scalable cloud-native architectures, APIs, data contracts, and interoperability standards. Design distributed systems for large-scale geospatial data, guide migrations from legacy platforms, establish data validation and quality frameworks, and create reusable platform capabilities. Influence technical strategy across engineering organizations while promoting Agile, DevOps, CI/CD, reliability, governance, and engineering excellence.

Develop and maintain full-stack features across backend architectures and responsive user interfaces. Responsibilities include designing new functionality, improving existing features, writing clean and testable code, participating in agile ceremonies, and applying strong engineering practices such as SOLID principles, REST API development, cloud infrastructure with Azure, and test-driven development.

Build and maintain high-performance advertising platform infrastructure handling thousands of requests per second and large-scale event data. Develop scalable Java and Spring services, deliver features from refinement through production, write automated tests, and support operational monitoring with metrics, alerting, tracing, and incident analysis. Collaborate with product managers, analysts, and ML Ops to refine requirements, understand business KPIs, and continuously improve engineering quality.

Design, build, and operate globally scalable fintech systems for payments, wallets, credit, and anti-fraud solutions. Lead backend and frontend development using Java, Kotlin, Spring, React, and distributed systems technologies. Own services through infrastructure automation and continuous deployment, apply secure coding and strong software design principles, and provide technical mentorship and engineering leadership.

The Software Developer will design and develop web applications, improve system reliability, and collaborate on architecture and deployment strategies.

The Software Engineer will focus on data collection and integration for model training at Speechify, improving data quality and pipeline infrastructure.

Design, build, support, and optimize Snowflake Dynamic Tables capabilities within a globally distributed engineering team. The role focuses on database and data-intensive systems, including performance, correctness, fault tolerance, reliability, and scalability. Engineers analyze complex problems, contribute to technical and product direction, understand customer use cases, and deliver production-ready software. Experience with database internals, query optimization, distributed systems, transactions, and consistency models is valuable.

Lead software development for biopharma process automation, designing reliable .NET solutions and contributing throughout the SDLC. Responsibilities include architecture improvements, code reviews, task estimation, stakeholder communication, team coordination, mentoring, training, technical consulting, proposal development, and maintaining software quality and performance standards.

As a Senior Software Engineer, you will design and optimize business logic for real-time ad serving, collaborating with Product to enhance ad delivery and performance.

Build and maintain React frontends and Node.js APIs using TypeScript. Design scalable REST and GraphQL APIs, collaborate with backend engineers, designers, and product owners, and deliver clean, maintainable, well-tested code. Contribute to architecture decisions, engineering best practices, and automated testing while taking ownership of full-stack projects supporting the company’s adtech ecosystem.

Designs, builds, and maintains secure, scalable cloud-native software tools and microservices on GCP. Leads subsystem architecture, API development, infrastructure deployment, CI/CD, monitoring, vulnerability remediation, and secure coding practices. Collaborates with data scientists, DevSecOps engineers, and mission owners, while mentoring junior engineers, conducting code reviews, and establishing technical standards and documentation.

The Senior Software Engineer will lead the design and development of real-time systems, collaborate on product design, mentor junior engineers, and maintain infrastructure for the Zeta Marketing Platform.

Build and evolve Camunda’s event-sourced distributed workflow engine and REST/gRPC/MCP APIs. Responsibilities include implementing and testing backend features, designing backward-compatible APIs, optimizing data access across RocksDB, Elasticsearch/OpenSearch, and PostgreSQL, adding observability, documenting designs, reviewing code, and participating in support and on-call. The role focuses on workflow automation, concurrency, event replay, process reliability, and enabling AI agents to control running processes.

Join a cross-functional team to develop and operate clearing and settlement services using Kotlin/Java and Spring Boot. Learn cloud-native AWS patterns (ECS, Lambda), CI/CD, infrastructure as code, observability, and automated testing. Contribute clean, secure, well-tested code, participate in code reviews, and help deliver resilient, compliant financial workflows while growing engineering skills and DDD knowledge.

Develop and optimize scalable release automation, build, testing, and deployment pipelines for Firefox. Collaborate with distributed engineering teams, improve developer experience, conduct code reviews, maintain existing tools and codebases, and respond to critical service outages during business hours. The role requires object-oriented programming experience, preferably Python, cloud experience, CI/CD knowledge, shell scripting, and comfort working across Windows, macOS, and Linux.

As a Software Engineer in Test, you'll design and execute test plans, automate scenarios with Playwright, and ensure overall software quality. Responsibilities include manual testing, analyzing test results, and collaborating with teams to elevate QA standards.

Develop and maintain the JetBrains Runtime to ensure IDEs run fast and render well. Provide low-level support for UI frameworks (Swing, Compose for Desktop), work on OpenJDK projects, implement hardware-accelerated rendering (Metal/Vulkan/OpenGL/D3D), fix JBR issues, and optimize/refactor cross-platform system UI code for Windows, macOS, and Unix.

Develop and operate cloud-native clearing and settlement backend services in Kotlin/Java with Spring Boot. Build distributed, event-driven systems on AWS (ECS/Lambda), own CI/CD, IaC, testing, observability, and deliver resilient, secure financial workflows from idea to production.

Design, build, and maintain production-grade AI/LLM backend services and APIs. Develop cloud-native architectures on AWS, extend Terraform infrastructure, implement CI/CD, testing, and monitoring. Work with agentic orchestration frameworks (e.g., LangGraph) and integrate LLM APIs (OpenAI, Anthropic, Google) into scalable products, collaborating with cross-functional teams.

Senior backend engineer building and operating cloud-native microservices for client authentication, KYC, GDPR-compliant flows, and Salesforce integrations. Write testable, secure Java/Kotlin code, deploy on AWS (ECS, Fargate, Lambda), own services end-to-end, and improve engineering excellence, CI/CD, and observability.

Own and scale Lounges personalization: build feature and training pipelines, production batch/real-time inference, A/B testing and attribution, integrate models into messaging (e.g., Braze), and mentor engineers while driving production-readiness and reliability.