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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer (SDK) - **Company:** Clera - **Location:** Berlin, Germany (Remote available) - **Experience:** Expert - **Salary:** €90,000.0 - €160,000.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), JavaScript (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Data Analysis, Application Release Automation, Automation of Tests, Databases, Continuous Integration, Software Debugging, Memory Management, Github, Monitoring of Systems, Python (Programming Language), Online Analytical Processing, Open Source Technology, Software Architecture, Release Management, Software Engineering, TypeScript, Management of Software Versions, Integration Tests, Information Technology, Production Code, Api Design, GPT, Serverless Computing - **Published:** August 6, 2026 - **Apply:** https://de.indeed.com/viewjob?jk=5df7c5e17b94a432 ## About the Role * 5+ years of professional software engineering experience, with at least 2 years building or maintaining SDKs or client libraries * Proven track record designing, implementing, and maintaining production-grade SDKs - including API design, versioning, packaging, and release management * Experience optimizing library/SDK performance (profiling, reducing latency and memory usage, improving throughput) * Hands-on experience with observability, tracing, metrics, or monitoring systems - designing or instrumenting telemetry for debugging and analytics * Proficiency in at least one SDK-relevant language (Python, TypeScript/JavaScript, Go, or Java) with ability to write idiomatic, production-quality code * Active open-source experience: handling GitHub issues, PR reviews, and community interactions * Strong written and verbal communication skills; comfortable writing documentation and engaging publicly (GitHub, social/developer channels) * Experience with automated testing and CI/CD pipelines for libraries (unit/integration testing, release automation, compatibility testing) * Ability to work effectively in small, distributed EU-timezone teams * Legal authorization to work in the EU - no visa sponsorship available Nice to Have: * Familiarity with analytics or large-scale telemetry systems (e.g., OLAP/columnar analytics databases) * Bachelor's degree in Computer Science, Engineering, or equivalent practical experience ## Description This is a rare opportunity to own the SDK layer of a widely adopted open-source AI engineering platform - the kind of tooling that sits at the very first touchpoint developers have with the product. The SDKs you build ship to millions of downloads per month, running in production environments ranging from serverless functions to long-running agent loops. When you ship, thousands of developers benefit the same day. The bar is high: zero-failure reliability, minimal CPU and memory overhead, and idiomatic developer experience across Python and TypeScript. You'll be the person who sets that bar and upholds it., * Own Python and TypeScript SDKs end-to-end - reliability, performance, and developer experience. You'll drive major version rewrites and architectural improvements, including work on OpenTelemetry-based tracing. * Design APIs developers love - every detail of naming, parameter structure, breaking change communication, and documentation is yours to shape. * Integrate with the AI ecosystem - build and maintain integrations with LLM frameworks, model providers, and agent runtimes; keep pace with a fast-moving ecosystem. * Maintain and grow open-source community health - triage GitHub issues, review pull requests, engage with contributors, and communicate clearly on public channels. * Drive performance - profile, benchmark, and optimize SDK footprint across latency, memory, and throughput dimensions. * Own the release lifecycle - versioning strategy, changelog communication, compatibility testing, and CI/CD automation for library releases. * Collaborate cross-functionally - work closely with product and data teams across EU timezones in a small, high-trust distributed team. ## Related Videos - [ Evaluating AI models for code comprehension](https://www.wearedevelopers.com/videos/1462-evaluating-ai-models-for-code-comprehension) - [Innovating Developer Tools with AI: Insights from GitHub Next](https://www.wearedevelopers.com/videos/1268-innovating-developer-tools-with-ai-insights-from-github-next) - [Kubernetes and Microservices with Multi-Model Databases](https://www.wearedevelopers.com/videos/382-kubernetes-and-microservices-with-multi-model-databases) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Streaming AI Responses in Real-Time with SSE in Next.js & NestJS](https://www.wearedevelopers.com/videos/1630-streaming-ai-responses-in-real-time-with-sse-in-next-js-nestjs) - [WeAreDevelopers LIVE - How DevRel Makes Tech More Human](https://www.wearedevelopers.com/videos/2149-wearedevelopers-live-how-devrel-makes-tech-more-human) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Best Countries for Software Engineers](https://www.wearedevelopers.com/magazine/267-best-countries-for-software-engineers) - [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe)