297 backend developer English-speaking jobs in Berlin

Ability to read and understand unfamiliar codebases and trace application behavior across frontend, backend ... You’ll work closely with engineers, reviewers, developer support, and Add-ons leadership to turn ideas ... Internal developer platforms: Create tools and paved paths that make it easier for teams to ship and

of end-to-end feature development across our new Data Platform - from frontend (React/TypeScript) to backend ... 3-5 years of experience building modern web applications across frontend and backend Strong experience ... with React and TypeScript Solid backend experience with Go Proven ability to build and ship features ... contributing your own ideas to simplify complex workflows Contribute to both frontend architecture and backend ... , or advanced dev tooling Knowledge of AWS and cloud-native concepts (useful when integrating with backend

Build scalable, maintainable backend systems using FastAPI and modern Python tooling. ... Experience with modern AI developer tools (e.g., Cursor, Claude Code, Copilot, etc.).

Key responsibilities include: Build and optimize backend services for VPP operations and energy market ... solutions with TypeScript Data engineering fundamentals — designing systems bridging backend and data ... integrations Design systems at the intersection of backend and data processing pipelines Drive technical ... decisions and guide fellow engineers on architectural choices Navigate between data engineering, backend ... boundaries Your profile The successful candidate will have: Proven experience developing scalable backend

specializing in application development and / or several years of professional experience as a front-end developer

Build features on your own real project using open-weight and Gemini models. Work independently and asynchronously to improve AI model performance. Must actively build a verifiable software project and use AI coding tools.

Wen wir suchen We’re looking for an a11y-loving, user-focused frontend developer to build and improve ... learned web development at university, at a coding bootcamp, through an online course or as a self-taught developer

Own LLM-powered features end-to-end, from prompt to production. Build across the stack using multi-LLM pipelines. Requires product instinct, LLM orchestration experience, and Python skills.

Own our developer platform and engineering standards: environments, containers, project templates, CI ... of experience in engineering roles, including significant time designing and running data-intensive backend

Alongside this platform, we operate a Node.js serverless backend. ... Our technical environment includes: Core backend: Elixir and Phoenix. ... Legacy backend: Node.js on AWS Lambda, DynamoDB, SQS and EventBridge. ... At Pets Deli, we’re looking for a Senior Backend Engineer who enjoys building reliable systems and taking ... What you’ll do Build and maintain backend services, APIs and core functionality in Elixir and Phoenix

Employment type:  B2B engagement DUTIES AND RESPONSIBILITIES: Design, develop and maintain scalable backend ... engineering, infrastructure and product teams REQUIREMENTS: 5+ years' commercial experience as a Backend ... hands-on Ruby on Rails experience in production Ability to independently design and implement complex backend

user growth through organic traffic channels, content optimization, AIGC technologies, and scalable backend ... Responsibilities: Participate in the design and development of backend systems for TikTok user growth ... Preferred Qualifications: Internship, project, course, or research experience in backend development, ... Experience or strong interest in AI-related backend systems, such as LLM service integration, prompt ... Basic understanding of backend development, APIs, databases, cache systems, microservices, or distributed

implementation of advanced RAG architectures, vector databases, and observability tools (e.g., LangSmith) AI Developer ... Frontend: Vue.js, TailwindCSS, and a modern design system for a consistent, intuitive user experience Backend ... confidently as a full-stack engineer with deep expertise in modern web frameworks (e.g., Vue.js, React) and backend

Your mission As an App Developer (Flutter & C#) at NeuroNation, you will play a central role in our mobile

We work in cross-functional mission teams made up of backend and full-stack engineers, mobile engineers

findings into actionable technical improvements 3+ years of experience building scalable, low-latency backend ... ranked data (merging, deduplication, score blending, and latency trade-offs) You're excited to bridge backend

I’m hiring a Senior Backend Engineer to join the Data Core team at Modash. ... Requirements What you've done before Built large-scale backend or data systems.

As a Senior Backend Engineer, you won’t just be maintaining existing systems. ... If you enjoy solving complex backend problems, working in a highly collaborative environment, improving ... What you’ll do: Design, build, and operate scalable backend services, APIs, event-driven workflows, and ... be great for this role if you have: Strong professional experience building and operating production backend

community through our Backend Guild ... Join us as Senior Backend Engineer to build the financial infrastructure that 750,000+ European SMEs ... You will work alongside backend, web, iOS, and Android engineers, as well as Product Managers and Designers ... end-to-end, following our "you build it, you own it" approach, and you will stay connected to the wider Backend ... performance, and steadily raise quality standards ➡️ What we're looking for Technical expertise: Strong backend

It requires strong experience across both frontend and backend development. ... The role is an 80/20 full-stack position, working primarily with TypeScript and Node.js on the Backend ... Excellent written and verbal communication skills in English Bonus points for: Backend experience ... A key part of the role involves owning our Server-Driven UI backend-for-frontend (BFF) layer — designing ... and implementing backend components that deliver dynamic UI configurations tailored to specific frontend