Vacatures senior backend engineer in Rotterdam

Contract: FreelanceStart: ASAPAbout the OpportunityJoin a leading technology consultancy that designs and delivers business-critical software platforms for organisations operating at scale. The company specialises in building highly reliable digital solutions that support complex operational processes across industries including logistics, financial...

Overview As Senior Backend Engineer – Mobile, you own the mobile-backend services and APIs that power Sunweb Group’s native apps. You design, build, and operate cloud-native .NET services on Azure, ensuring stable, versioned contracts and end-to-end ownership of mobile-backend capabilities. You collaborate across cross-functional teams to simplify the...

DescriptionOwn the services behind our native apps—and shape the role as you goOur native apps depend on stable, fast and thoughtfully designed services.As our Senior Backend Engineer – Mobile, you will become the dedicated backend engineer in Team Cuba. You will design, build and run the APIs and services used by the Sunweb Group apps.You will also...

VacaturesSenior Backend Engineer .NET (Quality Engineering) Senior Backend Engineer .NET (Quality Engineering) Ga terugVoornaamAchternaamE-mailadresTelefoonnummerUpload your CVChoose fileUpload your motivation (optioneel)Choose fileI accept the Privacy statementWere you referred by an Eneco employee? Please enter the employee's full name (first and last...

Toku Pte Ltd, with its Rotterdam base, is seeking a Senior Backend Engineer to design, build and operate distributed systems powering its cloud communications platform. You will work primarily in Go, contributing to customer-facing services, APIs and backend infrastructure.You will own production systems, focus on scalability, reliability and observability,...

Shipcloud in Rotterdam is seeking a Senior Engineer to own design and evolution of backend services within our cloud ecosystem. You will translate product vision into scalable architecture, lead technical decisions, and ensure reliability, security, and cost-efficiency.Collaborate with infrastructure and frontend teams to deliver high-quality software...

Toku Ltd. Rotterdam-based backend engineering role for distributed systems leader. As a Senior Backend Engineer, you design, build and operate the distributed systems powering our cloud communications platform, with a backend-first mindset and ownership across squads.You'll work mainly in Go, contribute to architecture, implement APIs and integrations, and...

SCOR Digital Solutions, the technology arm of SCOR, is seeking a senior software engineer to join the RAS engineering team in Rotterdam. The role is backend-focused, with Ruby on Rails preferred, and candidates with other MVC stacks are welcome if they can demonstrate equivalent skills.You will design, develop, and operate backend services, integrate agentic...

Coolblue seeks an experienced TypeScript Backend Developer to optimize website backend and microservices. You’ll work in a close-knit team, review code, and push high-quality features with contributions across CI/CD and internal tools.You’ll collaborate with designers and journey experts, build scalable services in TS on AWS, and mentor teammates as you...

We are looking for a software engineer with 5+ years of experience to join us on this exciting journey. Hybrid / Remote Ervaring 5+ years Join us to build the future of construction technology The construction industry shapes the skylines we admire and the infrastructure we rely on. Yet too many projects still fall behind schedule and over budget because...

i3D.net is seeking a Senior Backend Developer to design and implement Go-based services for billing, data flows, and integrations with ERP/CRM systems. You will own data migrations, modeling, and API design in a hybrid work setup at our Rotterdam HQ.You’ll collaborate with Finance, Product, and Business Analysts to ensure reliable, auditable data in...

FRANK zoekt een Senior PHP Developer die bijdraagt aan een schaalbaar SaaS-product voor de restaurantwereld. Je werkt aan backend (Laravel + Blade) en frontend (Vue.js + Tailwind) en helpt mee de architectuur en infrastructuur vorm te geven.Je werkt in Rotterdam met een ambitieus, zelfstandig team; equity-opties bij een goede match; 25 vakantiedagen en...

i3D.net is seeking a senior backend engineer to own data migrations, billing flows, and integrations in a hybrid Rotterdam role. You’ll build Go services, expose APIs, and collaborate with Finance, Product, and Business Analysts to shape the company’s billing architecture.You’ll work on greenfield architecture with a team of five, defining customer...

Ditto zoekt een gepassioneerde (Senior) Infra/Backend Engineer om eigenaarschap te nemen over de backend infrastructuur en ontwikkeling, en zo de gezondheidservaring voor gebruikers te verbeteren.Je werkt aan veilige, schaalbare systemen, ontwerpt pragmatische oplossingen en werkt nauw samen met productteams om business-behoeften om te zetten in robuuste...

Eneco's engineering team builds the platforms behind our Virtual Power Plant. You will develop .NET/C# backend services that connect large batteries, rooftop solar and customer assets to Eneco's VPP, enabling market participation.We emphasize automated testing, load testing, AI-assisted development, and on-call reliability, with opportunities to mentor...

i3D.net - A Ubisoft Company in Rotterdam is hiring a Senior Backend Developer. You’ll own how billing, product, and sales data flow across the org, building Go-based services and APIs that connect systems like HubSpot and NetSuite.You’ll design data models, migrations, and scalable backends while collaborating across Finance, Product, and Business...

Schuberg Philis is seeking a Senior Freelance TypeScript Software Engineer to design and build scalable, high-performance systems for critical parcel logistics platforms across Europe. You will collaborate with architects and developers to implement resilient backend services and connect operator-facing hardware with a large-scale backend.The role emphasizes...

Levvr is seeking a software engineer with 5+ years to join our fast-growing SaaS scaleup in a hybrid/remote role. You will build the backend platform and integrations that connect Levvr to customer systems, focusing on .NET/C# and scalable architecture.You will own end-to-end backend features, design APIs, and lead the Azure-to-AWS migration while ensuring...

pSCOR Digital Solutions is the technology arm of SCOR, one of the world's leading reinsurers. Based in Rotterdam, our team builds digital products that transform how the insurance and reinsurance industry operates. /p pOur flagship platform, RAS (Risk Automation Solutions), delivers augmented and automated underwriting capabilities as a customer-facing SaaS...

company.net is hiring a backend engineer to own data flows across billing, product, and sales. You’ll build Go services exposing billing logic and connect systems like ERP/CRM, shaping how data moves in production.You’ll work on greenfield architecture, defining customer data models and asset structures for invoicing, using SQL for validation and...