Senior Software Developer

Senior Software Developer (Contract)

6 Months | Outside IR35 | Up to £475/day | Hybrid (London / Ipswich)

We're working with a fast-growing SaaS business looking for a Senior Software Developer to join their agile team on an initial 6-month contract. This is a hands-on role with real influence across architecture, engineering standards, and product delivery.

You'll be building and enhancing scalable, cloud-based applications while mentoring others and driving best practices across the team.

Key skills:

Strong C# / .NET (Framework & Core)

TypeScript, HTML, CSS + React or Vue

Solid AWS experience (serverless/Lambda ideal)

CI/CD pipelines & Infrastructure as Code (Terraform/CDK)

Strong focus on clean architecture, SOLID principles & code quality

API integrations & secure coding (OWASP)The role:

Full lifecycle development in a modern tech environment

Collaborating with product, QA, and engineering leads

Code reviews, mentorship, and technical leadership

Supporting live systems & continuous improvementNice to have: TDD/BDD, PCI/ISO knowledge, VoIP, Python/AI exposure

Hybrid working with occasional travel to London or Ipswich (roughly once per month).

Great opportunity to join a high-performing team delivering secure, scalable SaaS products