Senior .NET Core Developer (UK)

About the role

We are seeking an experienced .NET Core Developer to join a partner company in the United Kingdom. You will work on designing, building, and integrating secure, scalable platforms that support complex enterprise environments.

Key responsibilities

• Design, develop, and maintain enterprise‑grade applications using .NET Core and modern engineering practices.
• Build and model APIs, integrations, and distributed system components across multiple platforms.
• Implement secure, scalable APIs with REST, GraphQL, gRPC, and OpenAPI standards.
• Develop solutions that integrate with corporate management systems and complex enterprise environments.
• Contribute to architecture design, domain‑driven design, and system modeling initiatives.
• Create and maintain security‑focused platform components, including control planes and policy‑driven workflows.
• Work with event‑driven technologies such as Kafka, Kinesis, or Pub/Sub to support scalable architectures.
• Design resilient systems with strong reliability, failure handling, monitoring, and operational readiness.
• Collaborate with cross‑functional engineering and product teams to deliver high‑quality software.
• Support continuous improvement of development practices, architecture standards, and technical documentation.

Required profile

• Senior software engineer with deep expertise in .NET Core, distributed systems, and enterprise application development.
• Bachelor’s or Master’s degree in Computer Science, Information Systems, or equivalent professional experience.
• 8+ years of professional software engineering experience with ownership of architecture, modeling, and distributed systems design.
• Strong architectural experience, excellent problem‑solving abilities, and a track record of building secure, scalable solutions.

Required skills

• .NET Core (framework internals, design patterns, application architecture)
• API development: REST, GraphQL, gRPC, OpenAPI
• Distributed systems and event‑driven architectures
• Kafka, Kinesis, Pub/Sub
• Domain‑driven design and system modeling
• Security‑focused platform components (control planes, policy workflows)
• Reliability engineering, monitoring, and operational readiness