Senior Software Developer

Job Description

Senior Software Engineer (Contract)
3-Month Engagement Outside IR35 Up to 475 per day Hybrid (London / Ipswich)

A rapidly expanding SaaS company is seeking an experienced Senior Software Engineer to support their agile delivery team on an initial 3-month contract. This position offers a strong mix of hands-on development and strategic input with the opportunity to shape system architecture influence engineering practices and contribute directly to product evolution.

Youll play a key role in designing building and improving scalable cloud-native applications while also guiding team members and promoting high standards across the development lifecycle.

Core expertise required:

• Advanced experience with C# (Framework and Core)
• Frontend development using TypeScript HTML CSS and either React or Vue
• Proven track record with AWS ideally including serverless architectures (e.g. Lambda)
• Experience with CI/CD pipelines and Infrastructure as Code (Terraform or CDK)
• Strong grounding in clean architecture SOLID principles and code maintainability
• Knowledge of API integration and secure development practices (OWASP)

What youll be doing:

• Delivering end-to-end software solutions in a modern tech stack
• Working closely with product managers QA and engineering leadership
• Conducting code reviews and providing mentorship to developers
• Maintaining and enhancing live systems with a focus on continuous improvement

Desirable (but not essential):

• Experience with TDD or BDD methodologies
• Familiarity with PCI or ISO standards
• Exposure to VoIP technologies
• Knowledge of Python or AI-related development

This role follows a hybrid working model with occasional travel to London or Ipswich (approximately once per month).

An excellent opportunity to contribute to a high-performing team building robust secure and scalable SaaS solutions.