English-speaking Backend Developer jobs in Berlin

Senior Freelance Android Engineer - Kotlin (m/f/d)

Berlin

Remote Freelance Senior

Android, Kotlin, Jetpack Compose, Git, CI/CD

Senior C# Developer (m/f/d)

Berlin

Hybrid Full-time Senior

Several years of hands-on experience in C#/.NET development (.NET 7, 8, 9, 10). Experience designing, developing, and maintaining microservices-based architectures. Solid experience with MongoDB or comparable NoSQL databases. …

C#, .NET, Microservices, MongoDB, Apache Kafka, RabbitMQ

Staff/Senior Software Engineer - Hydris - Golang (d/f/m)

Berlin

Hybrid Full-time Lead

Go, Rust, TypeScript

Rust Engineer (m/f/d)

Berlin

Full-time

Must-Haves Strong hands-on experience with Rust, including ownership, borrowing, composition, and idiomatic Rust design patterns. Solid experience with async Rust. You know how to structure concurrent applications and deal with …

Rust, Microservices, Jira, C++, CUDA, Python

Senior Ruby (on Rails) Engineer Trust & Safety (f/m/d)

Berlin

On-site Full-time Senior

A security-first mindset: you threat-model by instinct, probe how features can be abused, and stay current on attack vectors against social networks Solid Ruby on Rails experience in production. Strong SQL and a real …

Ruby, Rails, SQL, AWS

Senior Android Engineer - Kotlin (m/f/d)

Berlin

Remote Full-time Senior

Android, Kotlin, Jetpack Compose, Git, CI/CD

(Senior) Backend Engineer (m/w/d)

Berlin

On-site Full-time Senior

3+ YOE Experience. 3+ years of experience in high-performance environments (e.g. top-tier consulting, fast-scaling startups, or similar). Track Record. Proven end-to-end responsibility in software engineering or infrastructure/DevOps. …

Go, Apache Kafka, LLM, Python, PyTorch, React

Senior Software Engineer FullStack Kotlin / React - Berlin (f/m/d)

Berlin

Hybrid Full-time Senior

6+ YOE Are you convinced that you have exactly what it takes for the position? Then we encourage you to apply. Even if you don't meet every requirement, you might be exactly the right future Doctoliber for this or other positions! …

Kotlin, React, CI/CD, Agile, TypeScript, Rails

Full-Stack Product Engineer, Ruby on Rails (m/f/d) at Solar Startup

Berlin

On-site Full-time Mid

2+ YOE You have 2+ years of professional experience building full-stack web applications, ideally with Ruby on Rails. Experience in comparable MVC frameworks (Django, Laravel, Spring Boot, NestJS) will also be considered, if you are …

Ruby, Rails, Django, Laravel, Spring Boot, NestJS

Software Engineer – Data Processing & Backend (m/w/d)

Berlin

Full-time

Abgeschlossenes Studium in Informatik, Physik, Mathematik oder einem verwandten Bereich — oder vergleichbare praktische Erfahrung Solide Python-Kenntnisse und Freude daran, damit echte Probleme zu lösen Erfahrung mit REST APIs, …

Python, REST

Senior Backend Engineer – Identity & Core Product (m/f/d)

Berlin

Remote Full-time Senior

Deep OIDC/OAuth2 Expertise: You don’t just use libraries; you understand the underlying protocols, flows (Authorization Code, PKCE, etc.), and security implications. Backend Mastery: You are a seasoned developer, ideally with …

OpenID Connect, TypeScript, Keycloak

Senior Product Engineer (TS/NodeJS/Vue)

Berlin

Remote Full-time Senior

🧩 Fullstack JavaScript/TypeScript experience: You’ve shipped customer-facing features using TypeScript across frontend and backend, and you feel comfortable working fullstack. 🧠 Product-minded engineering: You talk about users, …

JavaScript, TypeScript, Node.js, Vue.js, React, SAML

Senior Backend VPP Software Engineer - TypeScript (m/f/d)

Berlin

Full-time Senior

The successful candidate will have: Proven experience in developing scalable backend solutions with TypeScript from several past projects Competence in building virtual power plant infrastructure, including the integration into …

TypeScript, CI/CD, GitHub Actions, GitHub, Google Cloud, Agile

(Senior) Backend Engineer (m/w/d)

Berlin

Full-time Senior

Mehrjährige Berufserfahrung als Backend Engineer in produktiven Software-Systemen. Sehr gute Kenntnisse in mindestens einer Backend-Programmiersprache (z. B. Java, Kotlin oder vergleichbare Technologien). Erfahrung mit REST-APIs, …

Java, Kotlin, REST, CI/CD, Microservices

Tech Lead BackEnd for Kadmos

Berlin

Full-time Lead

3+ YOE Must have requirements 3+ years of professional experience in digital marketing, content creation, and/or social media management Bachelor's degree from a top university in marketing, communication, or related field A …