Backend Developer (Typescript/Python)

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., * 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

• 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.

Monks is the global, digital-first, data-driven, unitary operating brand of S4 Capital plc. With a legacy of innovation and specialized expertise, Monks combines an extraordinary range of global Marketing and Technology Services to redefine how brands interact with the world. Through Monks.Flow, its flagship AI ecosystem for marketing orchestration, Monks transforms marketing into a growth engine, collapsing timelines and connecting brands to culture in real time. By deploying bespoke intelligent agents across disciplines and delivering culturally relevant, high-impact creative and digital solutions, Monks solves key critical business challenges across the entire brand enterprise to help brands sustain long-term impact. Monks was named a Contender in The Forrester Wave : Global Marketing Services, 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, Monks was also awarded Business Intelligence Group's 2025 Excellence in Artificial Intelligence Award in both the Organizational and AI Product categories. As a trusted partner to cutting-edge innovators in tech, Monks earned titles such as Optimizely Experimentation Partner of the Year (2025), runner-up for the Adobe Firefly Partner Award (2024), and Workato's AI Visionary Customer Impact Award (2024). Additionally, Monks achieved a record-breaking number of FWAs and continues to hold the most of any partner.