Senior SPA Engineer - Power Apps Code Apps & .NET APIs

Synechron Limited_UK Company; Greater London; On-site; GBP 65,000 - 90,000; Full time

Benefits offered by this job

flexible workplace arrangements

mentoring

internal mobility

learning and development programs

Job summary

Synechron is seeking a hands-on Software Engineer to design, develop, and enhance modern business applications in an AI-assisted delivery environment. You will collaborate with product owners, designers, and engineers to translate business requirements into secure, scalable solutions.

You will develop production-grade SPAs, build APIs and services in C#/.NET, and use Power Apps Code Apps within the Microsoft Power Platform.

Qualifications

• Professional experience developing Single Page Applications using modern component-based frameworks.
• Strong hands-on experience with C# and .NET, including API and service development.
• Practical experience with asynchronous programming, application layering, dependency management and integrations.
• Hands-on experience delivering Power Apps Code Apps.
• Familiarity with the wider Microsoft Power Platform.
• Knowledge of automated testing, code review, debugging and quality engineering practices.
• Understanding of secure development, access control, data protection and secrets management.
• Experience with source control, branching, CI/CD, environment promotion and release processes.
• Experience working across the full software development lifecycle in an Agile or iterative environment.

Responsibilities

• Develop and maintain production-grade Single Page Applications (SPAs).
• Build APIs, services and business logic using C#/.NET.
• Design and deliver code-first solutions using Power Apps Code Apps.
• Integrate applications with enterprise APIs, services and data sources.
• Apply responsive design, accessibility, performance and maintainable coding practices.
• Implement validation, error handling, logging, secure coding and automated testing.
• Participate in code reviews, debugging, deployment, release and operational support.
• Use AI-assisted development tools to accelerate delivery while reviewing and validating generated outputs.
• Contribute to reusable engineering patterns, technical standards and continuous improvement.

Skills

SPA development

C# / .NET

API development

AI-assisted tools

Code reviews

Tools

Power Apps Code Apps

Microsoft Power Platform

Job description

Synechron is seeking a hands-on Software Engineer to design, develop, and enhance modern business applications in an AI-assisted delivery environment. You will collaborate with product owners, designers, and engineers to translate business requirements into secure, scalable solutions.

You will develop production-grade SPAs, build APIs and services in C#/.NET, and use Power Apps Code Apps within the Microsoft Power Platform.