20 beste vacatures voor de functie van api developer in zuid holland (nieuwe medewerkers gezocht)

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Erasmus Universiteit Rotterdam —Rotterdam
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Mobile Developer
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Europol —Den Haag
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Functioneel Beheerder (32-40 uur, hybride) — in het hart van exportcontrole en sancties
Export Control Group International BV —Rotterdam
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PHP Developer (AI)
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Full-stack developer .NET + React
OnlineResults —Gouda
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Testmanager
Nictiz —Den Haag
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8 dagen

Ik wil de nieuwste vacature-alerts ontvangen voor de functie van api developer in zuid holland

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Full Stack Developer

Dentsu -
Rotterdam

Nu solliciteren

Vacaturegegevens

Fulltime

Kwalificaties

CI/CD
Authenticatie
Node.js
React
Salesforce
Master
Docker
JavaScript
PostgreSQL
APIs
AI
TypeScript
Debuggen

Volledige vacaturetekst

Job Description:

We’re looking for a hands-on Full-Stack Developer to build and scale the internal tools and AI-powered applications that support Merkle’s delivery. You’ll own the application layer end-to-end - from the backend up through the frontend - covering backend logic, infrastructure, authentication, deployments, and day-to-day stability.

What You’ll Do

Own and maintain the full application stack across our internal tools: backend, database, auth, and frontend
Design and implement authentication and access control (e.g., SSO with SAML or Okta, multi-tenant data isolation, role-based access)
Write and maintain database schemas, migrations, and access policies (e.g., PostgreSQL with RLS and RPC functions)
Build and manage serverless backend functions (e.g., for application logic and API integrations)
Set up and maintain CI/CD pipelines and manage deployments across environments (e.g., DEV, UAT, PROD)
Build and maintain modern frontends (e.g., React, Vite, TypeScript)
Debug and resolve issues across the stack (e.g., build errors, networking, misconfigured services, 5xx errors)
Collaborate with the AI/LLM side of the team to integrate model outputs cleanly into the application
improve

What You Bring

3+ years in software engineering (full-stack, AI, or platform development)
Experience with modern JavaScript/TypeScript stacks (React, Next.js, Node.js), frontend and backend
Experience with Docker and self-hosted infrastructure, not just managed cloud services
Knowledge and experience with multi-tenant application patterns
Solid problem-solving skills and strong ownership mindset

Strong advantage:

Familiarity with backend-as-a-service platforms (e.g., Supabase, Firebase) for auth, database, storage, and serverless functions
Exposure to alternative JS/TS runtimes (e.g., Deno, Bun)

Nice to Have

Hands-on experience with LLM APIs (e.g., OpenAI, Anthropic)
Familiarity with SSE streaming or real-time data patterns
Familiarity with MarTech platforms (e.g., Adobe, Salesforce, CDPs)
Experience with authentication systems (e.g., OAuth2, SAML, SSO)

Why This Role

Build products, not projects
Direct impact on how Merkle delivers at scale
Work at the intersection of AI, engineering, and platform thinking
High ownership and room to shape solutions

What We Offer

A dynamic, international work environment with colleagues from around the globe.
A challenging position at a successful company in a growing market.
A fun and inclusive culture-think foosball, table tennis, themed events, and team parties.
3 extra days off (yes, at Merkle we take your well-being very seriously) - in addition to 25 annual vacation days, there are 3 Well-being Days.
2 Social Impact Days - you can volunteer for a charity of your choice.
Extensive learning and development opportunities, including a wide range of personal and online training.
A hybrid work model, with 2-3 days in the office and the rest working from home.
A competitive salary and excellent secondary benefits.

Company Description

Merkle, a dentsu company, powers the experience economy. For over 35 years, Merkle has placed people at the heart of its digital business transformation approach. As the only integrated experience consultancy with a heritage in data science and business performance, Merkle delivers holistic, end-to-end experiences that drive growth, engagement, and loyalty. Recognized as a "Leader" by top industry analysts in categories such as digital transformation, commerce, experience design, engineering, technology integration, digital marketing, data science, CRM, loyalty, and customer data management, Merkle operates in 30+ countries with over 16,000 employees. In the Netherlands, more than 150 Merkle employees work with clients like ASML, Albert Heijn, HEMA, Carglass, and Signify. Merkle Netherlands is a strategic partner of Google, Adobe, Salesforce, and Selligent. For more information, visit www.merkle.com.

Diversity and Inclusion
At dentsu we believe in the power of diversity. We welcome all applications regardless of age, disability, gender reassignment, marital or civil partner status, pregnancy or maternity, race, color, nationality, ethnic or national origin, religion or belief, sex, or sexual orientation.

Contact:
We look forward to receiving your application for any questions, please contact the TA in charge of this role: David Ryall, Senior Talent Acquisition Partner, EMEA, NE. #LI-MERKLE #LI-Hybrid #LI-DR2

Location:

Rotterdam

Brand:

Merkle

Time Type:

Full time

Contract Type:

Fixed Term Contract (Fixed Term)

Nu solliciteren

Verfijn je zoekopdracht

api developer vacatures in zuid holland

Full Stack Developer

Full Stack Developer

Senior Backend Developer (.NET / C#) – API, AI & OpenEdge ABL – Fulltime

Junior/ Medior .NET Developer

Power Platform Consultant

Power Platform Consultant

Software Developer (0,8 - 1 fte)

.Net Software Developer

Mobile Developer

Test Automation Engineer

Senior Agent - Software Developer – Full Stack Java, Solution Delivery Unit (FGIV)

Test Analist

Functioneel Beheerder (32-40 uur, hybride) — in het hart van exportcontrole en sancties

PHP Developer (AI)

SR. Full Stack Software Developer

Fullstack Developer (Backend PHP Symfony & AI Stack focus) Medior / Senior

Data Warehouse Developer

Junior back-end (PHP) developer

Full-stack developer .NET + React

Testmanager

Ik wil de nieuwste vacature-alerts ontvangen voor de functie van api developer in zuid holland

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