Backend Developer (Typescript/Python)

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About the Role

As a Backend Developer , you’ll build, optimise, and maintain server-side Node.js and Python application logic. You will drive seamless integration and high performance in close collaboration with front-end developers, data analysts, and stakeholders to deliver scalable, robust backend solutions across diverse business applications. We are looking for someone who is passionate about seeking new opportunities to create impactful work.

Responsibilities:

Build and maintain high-performance, reliable server-side Node.js and Python logic

Collaborate with front-end developers to integrate user-facing elements with server-side logic

Design and implement APIs and RESTful services to industry standards

Set up , maintain, and optimize SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis) databases

Optimize application performance while ensuring long-term scalability and security

Identify and resolve bugs, performance bottlenecks, and infrastructure issues

Write clean, scalable code following Python and TypeScript best practices

Participate in code reviews and uphold coding standards and agile methodologies

Partner with QA, DevOps, and Product Management to deliver robust production applications

Maintain clear, technical, and API documentation for internal and external teams

About You

The essentials:

Valid Dutch work authorisation (required)

Bachelor's degree in Computer Science, IT, or equivalent practical experience

Proven experience in Python and TypeScript development, with a strong understanding of asynchronous programming, type safety, modular architecture, and modern language features

Hands-on experience with frameworks such as FastAPI, Django, NestJS, or Express

Proficiency with containerization and orchestration (Docker, Kubernetes), microservices architecture, and cloud platforms (AWS, Azure, or GCP)

Experience with message brokers and asynchronous processing (RabbitMQ, Kafka)

Strong knowledge of DevOps practices, CI/CD pipelines, and version control with Git

Proficiency with package management tools like npm, poetry, or uv

Deep understanding of web security best practices (OWASP, JWT, OAuth2, and authentication/authorisation patterns)

Experience with application performance monitoring, profiling tools, and modern testing frameworks

Front-end familiarity (HTML, CSS, JavaScript/TypeScript, and ReactJS) to facilitate cross-team collaboration

Strong analytical, problem-solving, and communication skills, with the ability to work effectively both independently and within an agile team

At Monks, we believe in fostering an environment where a diversity of perspectives can thrive. We proactively work to design hiring processes that promote equity and inclusion while mitigating bias. We celebrate diversity and are committed to building a team that reflects the communities we serve. We welcome and encourage qualified applicants, from all backgrounds, who are excited to contribute to our mission.

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About Monks

Monks is the global, digital-first, data-driven, unitary operating brand of S4Capital plc, where our culture centers on how we show up for the work and for one another. That begins with the commitment to strive for mastery—taking deep pride in our craft and creating work that sets the bar. In everyday execution, we drive momentum by choosing bold action rather than waiting for certainty. Above all, our teams are stronger together, bringing diverse perspectives into a unified team that communicates with clarity, trust, and mutual respect.

This commitment to craft and innovation translates directly into widespread industry acclaim: Monks was named a Contender in The Forrester Wave™: Global Marketing Services and a leader in the 2026 Gartner® Magic Quadrant™ for Global Digital Marketing Agencies. It ranks among Cannes Lions' Top 10 Creative Companies (2022-25) and remains the only partner featured in AdExchanger’s Programmatic Power Players list every year (2020-24). Named Adweek’s first AI Agency of the Year (2023) and The One Show’s inaugural AI Pioneer Organization (2025), Monks was also awarded Business Intelligence Group’s 2026 Excellence in Artificial Intelligence Award in the Human-Machine Interaction Team category. Additionally, Monks.Flow earned AI-based Marketing Solution of the Year at the 2026 AI Breakthrough Awards and a 2026 Global Generative AI Award in the Agentic Marketing Innovation category. Finally, Monks achieved a record-breaking number of FWAs and continues to hold the most of any partner.

We are an equal-opportunity employer committed to building a respectful and empowering work environment for all people to freely express themselves amongst colleagues who embrace diversity in all respects. Including fresh voices and unique points of view in all aspects of our business not only creates an environment where we can all grow and thrive but also increases our potential to produce work that better represents—and resonates with—the world around us.