backend developer

Noir is seeking a Senior Full Stack Developer to join our Zurich-based Digital Solutions team, in a hybrid role. You will craft scalable web applications and RESTful services using C#, ASP.NET Core and Angular, shaping solutions from concept to delivery.The role emphasizes backend/frontend balance, data modeling with SQL Server, and performance...

Huawei Technologies Switzerland AG in Zürich seeks a highly skilled researcher to advance performance modeling and micro-benchmarking for AI compute workloads. You will help develop architecture-aware optimizations and cost models for autotuning, extending GraphBLAS backends and enabling multi-node scaling.The role requires a PhD or MSc and hands-on...

Proton is seeking a Frontend Engineer to join the Meet team, building intuitive, performant, and secure user experiences for our communication platform. You will develop and maintain user-facing features, ensure responsive UI, and collaborate with backend, design, and other teams.We value strong frontend architecture, accessibility, and rapid feature...

Avaloq is redefining the future Mobile Banking experience. You will collaborate with cross-functional teams of engineers to design and develop features for next-generation applications, supporting customers globally.The role focuses on delivering high-quality apps with an agile team, including API integrations and backend interactions. The position involves...

Darwin Recruitment is seeking a Senior Full Stack Shopify Hydrogen Developer for a remote Europe-based engagement. You will join a delivery team building a headless Shopify Hydrogen project, covering a B2C storefront ready to launch and a straightforward B2B ordering flow for small buyers.The role spans the full stack with native Shopify backend work and API...

[English version below] Über uns Skysec Defence ist ein Schweizer Unternehmen, das sich auf die Entwicklung modernster C-UAS (Counter-Unmanned Aircraft Systems) Lösungen spezialisiert hat. Mit einem interdisziplinären Team aus Software-, Elektronik-, System- und Entwicklungsingenieuren arbeiten wir an der Spitze der Drohnentechnologie und entwickeln...

TomFit Health Training in Zürich is seeking a senior fullstack developer to own initiatives end to end. You will work across the apps our members train with, the backend that runs our hubs, and the TomBot hardware it uses.You will operate in an AI-first environment, lead cross-functional teams, and test directly with the TomBot in our studios. On-site in...

Merkle, a dentsu company, in Switzerland is seeking a Lead DXP Engineer to design, develop and implement high-performance applications with a focus on scalability, security and performance. This role will collaborate with cross-functional teams to deliver robust digital experiences.You will lead backend Java development, oversee code reviews and contribute...

pUnion Bancaire Privée seeks an experienced backend engineer to design, implement, and operate scalable services using Java 17/11/8, Spring 4/5, and Spring Boot 2.x/3.x. You will build REST/SOAP APIs, manage HTTP layers with OpenAPI, and develop admin UIs when needed. /ppYou will integrate with Oracle and MS SQL Server via JPA/Hibernate, manage schema...

AESTICO is hiring a Full-Stack SW Engineer to join our product team in Zürich. You’ll design, develop, and maintain a scalable mobile and web application, working across frontend and backend. You’ll collaborate closely with UI/UX, testing and revenue teams to deliver intuitive features.Join a ConTech SaaS startup focused on cost estimation for...

[English version below] **Über uns** **Skysec Defence** ist ein Schweizer Unternehmen, das sich auf die Entwicklung modernster C-UAS (Counter-Unmanned Aircraft Systems) Lösungen spezialisiert hat. Mit einem interdisziplinären Team aus Software-, Elektronik-, System- und Entwicklungsingenieuren arbeiten wir an der Spitze der Drohnentechnologie...

F. Hoffmann-La Roche AG is seeking a Software Engineer to join the Data and Digital Catalyst team in Basel, Switzerland. In this role, you will develop interconnected computational systems that support scientific research and treatment development.The ideal candidate should have a strong background in both backend and frontend development, with a minimum of...

CERN in Geneva invites applications for a Full-Stack Software Developer (IT-CA-OSI-2026-208-GRAE) to contribute to REANA, building frontend and backend for reproducible data analyses. You will collaborate with physicists and deploy services on the Kubernetes cloud.The role includes 40 hours/week, a 24‑month contract (with possible extension), hybrid work,...

Current Technology Stack: Node.JS, Nest.JS, JS/TS, TypeORM, PostgreSQL, AWS, React, NextJs, SCSS, Java, iOS (SwiftUI/Combine/async/await), Android (Kotlin, Coroutines) Responsibilities: Drive core product functionality development (e.g. auto top-ups, transaction logic, core flows); Design and document end-to-end backend-driven flows across mobile apps,...

Nexthink is the leader in digital employee experience management software. The company provides IT leaders with unprecedented insight allowing them to see, diagnose and fix issues at scale impacting employees anywhere, with any applicationor network, before employees notice the issue. As the first solutionto allow IT to progress from reactive problem solving...

Big Science Sweden is seeking a Python Software Engineer to develop APIs and desktop applications for CERN’s accelerator complex. You will work closely with control systems, focusing on robust and maintainable solutions.The role involves both backend API development and UI design using PyQt6, ensuring effective user experiences. Collaboration with diverse...

People More is seeking a Senior Software Engineer (Python / React) for an on-site role in Switzerland (Baar). You will develop backend services in Python (FastAPI, Pydantic, SQLAlchemy), support React frontend work, and optimise SQL Server databases.You’ll bridge the local Swiss team and the Central IT team in Greece, delivering scalable solutions across...

Avaloq in Switzerland is building a brand-new team to define the future Mobile Banking experience. You will collaborate with cross-functional engineers to design and develop features for next-generation apps, supporting customers globally and delivering high-quality mobile solutions.The role operates in an agile environment, partnering with product, UX and...

pAs a Python Software Engineer with a strong interest in both API development and desktop application engineering (with PyQt6), you will work on tools at the heart of CERN’s accelerator complex, used daily across operations, engineering, and physics. /ppThis role spans the Python APIs that interface to the CERN control system, and the PyQt6-based desktop...

Startupticker in Zürich is seeking a hands-on web developer for a 60-100% role. You'll ship across the stack, backend and frontend, on the live product and take on ownership quickly with a small, flat team.Compensation is CHF 35/hour plus equity potential, with optional relocation to San Francisco next year. English required, German a plus, and you’ll be...