We're looking for a Senior Full Stack Developer to join our engineering team. You'll own the full product development lifecycle—from API design to UI implementation—working on features that serve our enterprise clients.
Purpose
- Design and develop complex, enterprise software solutions across our full technology stack (.NET backend, React frontend)
- Build APIs and integrations that connect multiple systems and deliver seamless experiences
- Own code quality through rigorous testing, code reviews, and thoughtful architectural decisions
- Solve complex problems by evaluating requirements, making technology recommendations, and delivering robust solutions
- Mentor and collaborate with junior developers and cross-functional teams to drive innovation
- Lead from the front on incident response and operational excellence, ensuring our platform runs reliably 24/7
- Embrace AI-assisted development using modern tools like Claude and GitHub Copilot to accelerate delivery and explore new possibilities
Core Responsibilities Across the SDLC
Requirements & Analysis: Collaborate with stakeholders to translate business requirements into technical specifications; evaluate feasibility and propose optimal technical approaches
Design & Architecture: Design scalable solutions with well-defined APIs; create technical documentation; make informed technology choices; review designs with peers for consistency
Development & Implementation: Write clean, production-ready code in C# and React; implement proper error handling and observability; leverage AI coding assistants for productivity
Testing & Quality Assurance: Write comprehensive unit and integration tests (85%+ coverage); conduct peer code reviews; identify edge cases and support QA on bug resolution
Deployment & Release: Participate in release planning; ensure smooth deployments to staging and production; contribute to runbooks; follow security best practices
Operations & Support: Monitor application health; respond to production incidents and perform root cause analysis; identify and address performance bottlenecks; maintain disaster recovery procedures
Continuous Improvement: Identify and resolve technical debt; propose system improvements; mentor junior developers; stay current with emerging technologies
What We're Looking For
- 4-6 years of professional software development experience
- Backend: Strong proficiency with C#, .NET 6+, .NET Core, ASP.NET MVC/Web API, and Entity Framework
- Frontend: Solid experience building production React applications with JavaScript, Redux, Hooks, and React Context API
- Experience with REST and SOAP APIs, Web Services design, and database architecture (both SQL and NoSQL)
- Hands-on experience with automated testing frameworks (xUnit, nUnit, Jest, Moq, nSubstitute)
- Proficiency with Git/GitHub and modern version control workflows
- Comfortable in Agile/Scrum environments
- Bachelor's degree in Computer Science, Engineering, Mathematics, or equivalent professional experience
- Strong fundamentals in object-oriented design patterns and clean code principles (SOLID, design patterns)
- End-to-end understanding of the full SDLC—from requirements through operations
- Problem-solving mindset—you identify root causes and prevent recurrence, not just fix symptoms
- Quality-first approach—you believe in rigorous testing, code reviews, and thoughtful design
- Attention to detail—you catch edge cases, security issues, and performance concerns before production
AI & Modern Development Skills
- Experience leveraging AI coding assistants (GitHub Copilot, Claude Code, ChatGPT) to improve productivity and code quality
- Ability to effectively prompt and validate AI-generated code
- Understanding of AI capabilities and limitations in software development
- Comfortable experimenting with AI-powered tools for code generation, documentation, testing, and debugging
- Knowledge of secure coding practices when using AI tools (no secrets in prompts, code review remains mandatory)
- Ability to use AI for code analysis and identifying potential bugs or improvements
Nice to Have
- Experience with microservices and serverless architectures
- Knowledge of system monitoring tools (New Relic, CloudWatch, DataDog, Application Insights)
- Familiarity with API management platforms (Swagger, API Gateway, APIGee)
- AWS experience (Lambda, EC2, RDS, S3, SNS/SQS)
- Understanding of Domain-Driven Design (DDD) or CQRS (Command Query Responsibility Segregation) principles
- Background in the automotive industry
- Experience with containerization (Docker, Kubernetes)
- Knowledge of CI/CD pipelines and infrastructure automation (GitHub Actions, Azure DevOps)
- Experience with AI-powered code analysis tools (SonarQube, GitHub Code Scanning, Copilot for analyzing code quality)
- Understanding of ML/AI integration in applications and AI API consumption
- Experience with performance optimization and profiling tools
- Familiarity with security scanning tools and threat modeling (OWASP)
- Knowledge of database optimization and query performance tuning
- Experience with distributed systems debugging and troubleshooting
- Strong communication skills—you explain technical decisions clearly to engineers and non-technical stakeholders
- Ownership mindset—you take pride in what you ship and support it in production
- Collaborative spirit—you work well with teams and help others improve
- Growth mindset—you stay current with new technologies, tools, and industry trends
- Curiosity about AI—you're interested in exploring how AI can improve development workflows
Skills Required
- 4-6 years of professional software development experience
- Proficiency with C#
- .NET 6+
- .NET Core
- ASP.NET MVC / Web API
- Entity Framework
- Production experience with React and JavaScript
- Experience with Redux, React Hooks, and React Context API
- Experience designing and consuming REST and SOAP web services / APIs
- Database architecture experience (SQL and NoSQL)
- Hands-on experience with automated testing frameworks (xUnit, nUnit, Jest, Moq, nSubstitute)
- Proficiency with Git / GitHub and modern version control workflows
- Comfortable working in Agile / Scrum environments
- Strong fundamentals in object-oriented design, SOLID principles, and design patterns
- End-to-end understanding of the full SDLC (requirements through operations)
- Experience leveraging AI coding assistants (GitHub Copilot, Claude Code, ChatGPT) and validating AI-generated code
- Write comprehensive unit and integration tests targeting high coverage (example: 85%+)
- Bachelor's degree in CS, Engineering, Mathematics, or equivalent professional experience
- Problem-solving mindset, attention to detail, and quality-first approach (rigorous testing and code reviews)
- Mentoring junior developers and collaborating with cross-functional teams
- Experience with microservices and serverless architectures
- Familiarity with system monitoring tools (New Relic, CloudWatch, DataDog, Application Insights)
- Familiarity with API management platforms (Swagger, API Gateway, APIGee)
- AWS experience (Lambda, EC2, RDS, S3, SNS/SQS)
- Understanding of Domain-Driven Design (DDD) or CQRS
- Background in the automotive industry
- Containerization experience (Docker, Kubernetes)
- CI/CD and infrastructure automation experience (GitHub Actions, Azure DevOps)
- Experience with code quality and analysis tools (SonarQube, GitHub Code Scanning)
- Familiarity with security scanning tools and threat modeling (OWASP)
- Experience with performance optimization and distributed systems debugging
- Strong communication skills and ownership mindset
What We Do
As the largest global automotive technology company, Keyloop delivers cutting-edge solutions, tailored to the modern needs of auto retailers and OEMs alike. With 40 years of automotive DNA, and a deep understanding of what it takes to drive success, Keyloop solutions are delivered in over 90 countries, and trusted by more 20,000 retailers and 80 OEMs worldwide. From the showroom to the workshop, and everything in between, its technology facilitates distinctive customer experiences between key systems, tools and departments. With modern consumers demanding increasingly high levels of service and responsiveness, Keyloop and their partners connect retailers and OEMs to consumers through every step of their journey. Keyloop delivers a proven technology ecosystem that redesigns the automotive retail experience to cultivate lasting loyalty and optimise margins through increased efficiency, elevated experiences, and unrivalled connected data. For more information, please visit www.keyloop.com
