Sr Backend Developer 40u/w
Volgnummer: 118909
Publicatiedatum: 13-03-2026
Locatie: AMSTERDAM
Standplaats: AMSTERDAM
Duur: 06-04-2026 - 31-12-2026
Optie tot verlenging: Ja
Reageren voor: 13-03-2026
The Back-End Developer establishes the web development activities that are done at the back end of programs. The Back-End Developer covers server-side web application logic and integration and activities, like writing APIs, creating libraries, and working with system components instead of frontend development, which focuses on customer-facing services and programs. The Back-End Developer focuses on the design of effective and efficient solutions by analysing the website's performance demands and goals; development and administration of Application Programming Interfaces (APIs); develops data acceptance and storage solutions for websites; writes, tests, and maintains development solutions for code-related problems; identifies new features with developers, designers, and system administrators; creates a website architecture by utilizing correct product lifecycle approaches, such as Agile Scrum and frameworks; organises the system logic; provides remedies to difficulties with the system; and debugs and troubleshoots apps.
As a Senior Backend Developer in our Business Development team, you will play a key role in driving digital solutions that help us create value for our customers and employees. Your expertise in building enterprise-grade production ready solutions with .NET and Azure will be central to developing and maintaining robust backend applications, enabling innovative customer solutions with lasting impact. Working alongside other backend and front-end developers, as well as business stakeholders, you will apply your experience to design and take a variety of applications into production, ranging from event-driven and messaging-based systems (e.g., Kafka) to cloud-native services on Azure, bringing a flexible, hands-on mindset and the versatility to contribute across different parts of the stack as needed.
Your daily responsibilities include:
•
• Designing, building and maintaining production-ready backend services using .NET on Azure and implementing new features and integrations yourself
• Producing clean, maintainable code with strong tests, documentation, and sensible patterns
• Driving technical decision-making (trade-offs, performance, reliability, cost)
• Implementing event-driven architectures that support efficient communication between systems
• Sharing your knowledge of best practices in code quality, security and system performance with the team
• Collaborating closely with developers and stakeholders to deliver complete solutions, and owning features end-to-end: discovery, design, implementation, testing, deployment, monitoring and debugging production issues and improving reliability through code
You will contribute to architectural decisions by applying your technical insight and experience, always considering the needs of both the business unit and our customers. You consider the needs of both the business unit and our customers, and communicate clearly with technical and non-technical stakeholders to build shared understanding and alignment, and come up with designs suited to the problems. Success in this role means creating secure, high-performing systems that support new business opportunities while helping colleagues grow through open collaboration. By championing quality standards and sharing knowledge openly, you help shape an environment where every solution is stronger because it’s built together.
The team works closely together with other teams and can be described as innovative and progressive. They are trying to implement new things through AI and a candidate should also like to pioneer in this expertise.
Skills:
•
• At least five to ten years of experience as a backend developer, bringing deep expertise (minimal +5 years) in .NET Core and C# to design and maintain robust applications
• Hands-on experience with Microsoft Azure, including Functions, Key Vaults, App Insights, Container Apps, Service Bus and Event Grid
• Preference for delivering features end to end, from idea to running code in production
• Experience with event-driven architectures and messaging systems such as Kafka or similar platforms
• Experience with Infrastructure as Code (IaC), CI/CD pipelines and container technologies like Docker or Kubernetes
• Thoughtful approach to challenges, combining technical skill with an open mindset to explore new ideas
We believe your strengths include:
•
• Communicating clearly and proactively across teams to deliver integrated solutions
• Championing best practices in code quality, security and performance by supporting your colleagues
• Engaging creatively with new technologies to find practical ways forward
• Working together closely with DevOps and frontend specialists to achieve common goals
• Sharing your expertise while remaining receptive to diverse perspectives
• Developing backend solutions that help our customers and employees — and being energised by teamwork, transparency and driving innovation
Functie-eisen:
.NET
5 jaar
Azure
5 jaar
C#
5 jaar
CI/CD
5 jaar
Docker
5 jaar
Infrastructure as a code
5 jaar
KAFKA
5 jaar
Kubernetes
5 jaar Solliciteer nu!
Duur: 06-04-2026 - 31-12-2026
Optie tot verlenging: Ja
Reageren voor: 13-03-2026
The Back-End Developer establishes the web development activities that are done at the back end of programs. The Back-End Developer covers server-side web application logic and integration and activities, like writing APIs, creating libraries, and working with system components instead of frontend development, which focuses on customer-facing services and programs. The Back-End Developer focuses on the design of effective and efficient solutions by analysing the website's performance demands and goals; development and administration of Application Programming Interfaces (APIs); develops data acceptance and storage solutions for websites; writes, tests, and maintains development solutions for code-related problems; identifies new features with developers, designers, and system administrators; creates a website architecture by utilizing correct product lifecycle approaches, such as Agile Scrum and frameworks; organises the system logic; provides remedies to difficulties with the system; and debugs and troubleshoots apps.
As a Senior Backend Developer in our Business Development team, you will play a key role in driving digital solutions that help us create value for our customers and employees. Your expertise in building enterprise-grade production ready solutions with .NET and Azure will be central to developing and maintaining robust backend applications, enabling innovative customer solutions with lasting impact. Working alongside other backend and front-end developers, as well as business stakeholders, you will apply your experience to design and take a variety of applications into production, ranging from event-driven and messaging-based systems (e.g., Kafka) to cloud-native services on Azure, bringing a flexible, hands-on mindset and the versatility to contribute across different parts of the stack as needed.
Your daily responsibilities include:
•
• Designing, building and maintaining production-ready backend services using .NET on Azure and implementing new features and integrations yourself
• Producing clean, maintainable code with strong tests, documentation, and sensible patterns
• Driving technical decision-making (trade-offs, performance, reliability, cost)
• Implementing event-driven architectures that support efficient communication between systems
• Sharing your knowledge of best practices in code quality, security and system performance with the team
• Collaborating closely with developers and stakeholders to deliver complete solutions, and owning features end-to-end: discovery, design, implementation, testing, deployment, monitoring and debugging production issues and improving reliability through code
You will contribute to architectural decisions by applying your technical insight and experience, always considering the needs of both the business unit and our customers. You consider the needs of both the business unit and our customers, and communicate clearly with technical and non-technical stakeholders to build shared understanding and alignment, and come up with designs suited to the problems. Success in this role means creating secure, high-performing systems that support new business opportunities while helping colleagues grow through open collaboration. By championing quality standards and sharing knowledge openly, you help shape an environment where every solution is stronger because it’s built together.
The team works closely together with other teams and can be described as innovative and progressive. They are trying to implement new things through AI and a candidate should also like to pioneer in this expertise.
Skills:
•
• At least five to ten years of experience as a backend developer, bringing deep expertise (minimal +5 years) in .NET Core and C# to design and maintain robust applications
• Hands-on experience with Microsoft Azure, including Functions, Key Vaults, App Insights, Container Apps, Service Bus and Event Grid
• Preference for delivering features end to end, from idea to running code in production
• Experience with event-driven architectures and messaging systems such as Kafka or similar platforms
• Experience with Infrastructure as Code (IaC), CI/CD pipelines and container technologies like Docker or Kubernetes
• Thoughtful approach to challenges, combining technical skill with an open mindset to explore new ideas
We believe your strengths include:
•
• Communicating clearly and proactively across teams to deliver integrated solutions
• Championing best practices in code quality, security and performance by supporting your colleagues
• Engaging creatively with new technologies to find practical ways forward
• Working together closely with DevOps and frontend specialists to achieve common goals
• Sharing your expertise while remaining receptive to diverse perspectives
• Developing backend solutions that help our customers and employees — and being energised by teamwork, transparency and driving innovation
Functie-eisen:
.NET
5 jaar
Azure
5 jaar
C#
5 jaar
CI/CD
5 jaar
Docker
5 jaar
Infrastructure as a code
5 jaar
KAFKA
5 jaar
Kubernetes
5 jaar Solliciteer nu!