Senior Backend Developer (.NET)

TL;DR

Senior Backend Developer (.NET): Leading the modernization of core API services and performance engineering for high-load distributed systems with an accent on platform scalability and API-first integration. Focus on rebuilding legacy .NET frameworks, eliminating performance bottlenecks, and implementing robust resilience patterns to ensure system reliability.

Location: Hybrid (Edinburgh, Scotland, UK)

Company

A technology consultancy helping organizations navigate the future through human expertise, emerging tech, and AI.

What you will do

• Lead initiatives to improve platform capacity and concurrency for high-traffic customer journeys.
• Oversee the modernization of core API services by migrating away from unsupported .NET frameworks.
• Implement repeatable performance testing and proactive monitoring strategies.
• Drive the transition from legacy file-based interfaces to scalable, real-time API integrations.
• Apply resilience patterns such as caching, circuit breakers, and rate limiting to improve system stability.

Requirements

• Deep expertise in .NET architecture and backend systems.
• Proven experience diagnosing and fixing performance issues in high-load, distributed systems.
• Demonstrated success in designing and scaling robust API interfaces.
• Practical experience with technical resilience patterns and performance testing protocols.
• Strong communication skills and ability to build trust within multidisciplinary teams.

Culture & Benefits

• Commitment to diversity, inclusion, and equal opportunities.
• Supportive environment with adjustments available for the application and interview process.
• Focus on collaborative, low-ego teamwork in a multidisciplinary setting.
• Opportunity to work on complex, high-impact client challenges.