Senior Software Developer

Salary: £33,000 – 73,000 per year

Requirements

• We require advanced experience with C# and .NET, including .NET Framework and .NET Core.
• We require frontend development experience with TypeScript, HTML, CSS, and either React or Vue.
• We require proven experience with AWS, ideally including serverless architectures such as Lambda.
• We require experience with CI/CD pipelines and Infrastructure as Code, such as Terraform or CDK.
• We require a strong grounding in clean architecture, SOLID principles, and code maintainability.
• We require knowledge of API integration and secure development practices, including OWASP.
• We prefer experience with TDD or BDD methodologies.
• We prefer familiarity with PCI or ISO standards.
• We prefer exposure to VoIP technologies.
• We prefer knowledge of Python or AI-related development.

Responsibilities

• We design, build, and improve scalable cloud-native applications.
• We deliver end-to-end software solutions in a modern technology stack.
• We work closely with product managers, QA, and engineering leadership.
• We shape system architecture and influence engineering practices.
• We conduct code reviews and provide mentorship to developers.
• We maintain and enhance live systems with a focus on continuous improvement.
• We contribute directly to product evolution and support agile delivery goals.
• We promote high standards across the development lifecycle.

Technologies

• .NET Framework
• AI
• API
• AWS
• Lambda
• C#
• CI/CD
• Cloud
• CSS
• Frontend
• Support
• OWASP
• Python
• React
• Serverless
• TDD
• Terraform
• TypeScript
• Vue
• ASP.NET
• DevOps

Overview

We are a rapidly expanding SaaS company offering an initial 3-month contract for a Senior Software Engineer. This is an outside IR35 engagement with a day rate of up to £475, and we work in a hybrid model based around London and Ipswich, with occasional travel to either location approximately once per month. You will join a high-performing agile delivery team and have the opportunity to make a strong impact on our system architecture, engineering practices, and product direction while helping us build robust, secure, and scalable SaaS solutions.

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