10,390 Senior Backend jobs

AI Node.js Performance Management React Talent Management

Build and scale the backend of Tellent HR, a Node.js-based HRIS platform, improving core HR workflows like time-off policies and employee data management.

Sytac

Senior Backend Engineer

Agentic AI AI Azure CI/CD Cloud +11 skills

Build and run production-grade backend services in Kotlin/Java with Spring Boot on cloud platforms, ensuring clean code, CI/CD, and Kubernetes operations.

kaiko.ai

Open 36d EuropeFull-timeSenior

Senior Backend Engineer

AI API AWS Azure Cloud +14 skills

Build backend services for a clinical AI assistant that integrates patient data and medical guidelines using Python, Django/Flask, and cloud platforms.

Vandebron

Senior Backend Engineer

API Api Design Backbone.js Design Patterns Gdpr +6 skills

Build and evolve Vandebron’s energy-trading backend, migrating from Scala/ZIO to Kotlin/Spring Boot while designing scalable microservices that keep the grid 100% green.

Senior Backend Engineer - Elixir

Build and maintain backend services for an online travel agency using Elixir, collaborating with cross-functional teams to improve booking and search systems.

Trinamics

Senior Node.js Backend Developer & API Architect

Builds and optimizes Node.js backend services and BFF APIs in a product team, shaping technical decisions.

Senior Backend Developer (C#/.NET) – Hybrid, Mentorship & Impact

Build and maintain backend services in C#/.NET for healthcare and education projects while mentoring junior developers in a Scrum team.

Vision Healthcare NV

Open 36d HybridEuropeContractSenior

Senior Backend .NET Developer

Azure Azure DevOps DevOps .NET Elasticsearch +6 skills

Build and scale microservices in .NET 8 on Azure, handling orders, payments, and subscriptions while migrating data to SaaS platforms like CommerceTools.

Digis Corp

Senior .NET Backend Developer: Azure REST APIs

Designs and maintains REST APIs for Azure infrastructure using .NET/C# in a collaborative European product company.

API Azure C# .NET REST

Miniclip

Senior Backend .Net Developer

BigQuery C# Data Warehousing DevOps .NET +4 skills

Build and optimize backend services for Online Soccer Manager using .NET Core, Kubernetes, and RabbitMQ to power a popular sports game with millions of users.

Werken op het IPKW

Open 36d On-siteEuropeContractSenior

Senior C#/.NET Backend Software Developer

Angular Azure Azure DevOps Azure Functions CI/CD +11 skills

Build and scale a SaaS platform for EV charging using C#/.NET, Azure Functions, and microservices; work in a Scrum team to integrate cars, chargers, and the grid.

Rotterdam Innovation City

Senior Backend .Net Developer

BigQuery C# Data Warehousing DevOps .NET +4 skills

Build and optimize backend services for Online Soccer Manager using .NET Core, Kubernetes, and RabbitMQ to power a global gaming platform.

Futures.Works

Open 36d EuropeContractSenior

Senior Backend Developer at Move in Amsterdam

AWS Cloud DevOps Docker GCP +8 skills

Builds and maintains backend services for mobile-first applications, integrating systems with native frontends using PHP, Node.js, and cloud platforms like AWS and Google Cloud.

Werken op IPKW

Open 36d On-siteEuropeSenior

Senior C#/.NET Backend Software Developer

Azure Cloud C# Developer Experience .NET +3 skills

Build and maintain a cloud-based SaaS platform for EV charging using C#/.NET and Azure, working in a Scrum team to design and ship micro-services.

ON THAT ASS

Senior Backend Developer Symfony – Schaalbaar Platform

Event Driven Architecture PHP Symfony

Build and scale PHP/Symfony backends for a high-traffic platform using DDD and event-driven patterns, collaborating with product and infrastructure teams.

H1 Webdevelopment

Senior PHP Backend Developer: eCommerce & Symfony Expert

API Automation Docker E-commerce Elasticsearch +13 skills

Build and maintain high-performance e-commerce platforms using PHP, Symfony, Shopware, and Magento, integrating APIs and optimizing performance for clients.

citonl

Senior Backend Developer (C#/.NET) - Remote/Hybrid

Builds and maintains backend services in C#/.NET for a construction-focused platform, collaborating with product owners to deliver user-friendly IT solutions.

payabl.

Open 36d EuropeContractSenior

Senior Backend Developer (File Processing) - Relocation to Cyprus

AI Airflow Automation AWS CloudWatch +14 skills

Senior Backend Developer to migrate and modernize payment file-processing pipelines from Perl to Python, orchestrating Visa/Mastercard clearing files with Airflow/CloudWatch and AWS services.

Superbrave

Senior Backend Developer – PHP/Symfony, Scalable APIs

Builds and maintains scalable, reliable backend services in PHP/Symfony for a healthcare platform, collaborating with frontend, DevOps, and product teams.

API DevOps