Full-Stack Engineer (C#, .NET, TypeScript) – Data‑Driven SaaS

SPECTRUM IT; Greater London; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

A growing SaaS business in the UK is looking for a Senior Software Engineer to design and deliver features across a modern stack. You will build full-stack features using C#, .NET, and TypeScript, develop scalable backend services, and create responsive user-friendly interfaces. Strong problem-solving skills and collaborative mindset are key to success in this role. With a salary up to £90,000 and opportunities for progression, this is an exciting chance to work in a dynamic environment.

Benefits

Excellent learning opportunities

Clear progression

Hybrid working

Qualifications

• Strong commercial experience as a Software or Full Stack Engineer.
• Solid experience with C# / .NET and modern JavaScript or TypeScript.
• Strong problem-solving ability and collaborative mindset.

Responsibilities

• Building full‑stack features using C#, .NET and TypeScript/React.
• Developing scalable backend services for complex data workflows.
• Creating responsive, user‑friendly interfaces.
• Exploring new technologies and contributing to technical improvements.
• Working collaboratively in an agile engineering environment.

Skills

C#

.NET

TypeScript

JavaScript

Problem-solving

Collaboration

Education

Bachelor's degree in Computer Science or related field

Job description

A growing SaaS business in the UK is looking for a Senior Software Engineer to design and deliver features across a modern stack. You will build full-stack features using C#, .NET, and TypeScript, develop scalable backend services, and create responsive user-friendly interfaces. Strong problem-solving skills and collaborative mindset are key to success in this role. With a salary up to £90,000 and opportunities for progression, this is an exciting chance to work in a dynamic environment.