We're looking for a Senior .NET Engineer (Contract) to join our team in London, United Kingdom in a hybrid working mode. In this role, you will focus on building solutions for the finance sector, leveraging AWS and modern engineering practices. You will drive software design and development, ensure seamless integration and performance across complex systems, and maintain high standards of code quality.
Responsibilities
- Design, develop and maintain applications using C# and .NET technologies to deliver robust, scalable solutions
- Design, develop and maintain software for seamless integration and optimal performance
- Design and implement solutions for distributed systems and ensure efficient interaction with relational and NoSQL databases
- Implement and maintain Infrastructure as Code (IaC) using AWS CDK with Python to automate deployment and management of cloud resources
- Ensure high-quality code through automated testing, particularly unit testing, and maintain a strong emphasis on code quality and complexity
- Oversee the implementation and management of CI/CD pipelines to streamline the software development lifecycle
- Monitor system performance, identify issues and implement solutions to ensure high availability and performance
- Ensure security best practices are followed and implement necessary measures to protect cloud infrastructure and applications
- Participate in agile ceremonies and contribute to an agile mindset within the team
- Maintain detailed documentation of code, processes and system configurations
Requirements
- Proven experience as a Senior .NET Engineer, preferably in the finance sector
- Strong understanding of AWS services and hands‑on experience with Infrastructure as Code (IaC), particularly using AWS CDK in Python
- Experience with automated testing frameworks and solid understanding of unit testing principles
- Experience working in agile environments and a strong agile mindset
- Strong knowledge of distributed systems architecture and database design, including relational and NoSQL databases
- Excellent problem‑solving skills and ability to think critically and creatively
- Leadership and collaboration skills with the ability to communicate effectively with team members and stakeholders
- Passion for code quality and commitment to maintaining high standards of software development
Nice to have
- Experience with Entity Framework or other CRMs
- Experience designing and building systems using a contract‑first methodology
- Experience writing tests or scripts in Python
- Familiarity with Kubernetes and container orchestration
- Experience with relational and/or NoSQL databases
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