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Date Added: Wed 30/07/2025

Senior Software Engineer

Manchester, M1, UK
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Company: OPUS RECRUITMENT SOLUTIONS

Job Type: Permanent, Full Time

Salary: £70000 - £80000/annum

The Company
Join a rapidly growing, trusted technology partner delivering mission-critical solutions within the national security space. You'll be contributing to projects that help safeguard the nation—developing systems that protect people, platforms, and data against ever-evolving threats.
 
This organisation is delivering cutting-edge projects across AI, Cyber Security, Cloud, DevOps, and Platform Engineering. With long-term client engagements secured via the latest government frameworks, the company is set for sustained growth—making now a great time to come on board.

The Role
As a Full Stack Software Engineer, you'll build high-assurance systems from the ground up. Unlike commercial fintech work, your solutions will directly support national security efforts. You'll have the opportunity to shape technology strategy, work with emerging tools, and contribute to novel and impactful product development.
 
You'll collaborate directly with end-users and stakeholders, translating mission needs into robust, scalable technical solutions.

Responsibilities:

Design, develop, and maintain secure and scalable software using a test-driven development (TDD) approach
Create and maintain reusable, open-by-default code
Convert logical designs into production-ready architectures
Maintain clean documentation and design specs using appropriate standards and tools
Integrate APIs, front-end components, and data pipelines
Support existing architecture components (e.g. REST APIs, data ingest layers)
Participate in Agile ceremonies (stand-ups, sprint planning, retrospectives)
Collaborate with user researchers and UX designers to align features with genuine user needs
Support and inform the team on new technologies and their impact
 Tech Stack & Skills:

Java (Spring Boot) - Strong experience in enterprise-level development
JavaScript Frameworks - Experience with React, VueJS, or AngularJS
Testing - Knowledge of modern testing frameworks and TDD principles
Technological curiosity - Comfortable learning new technologies and tools
Understanding of secure development practices in high-assurance environments 
About You:

You're passionate about national security and want your work to have real-world impact
You enjoy solving complex challenges using modern technology stacks
You're comfortable in an agile team and thrive in a collaborative, mission-focused environment 
Location:
Based in central Manchester, with excellent transport links and proximity to key clients in the region. Hybrid working available, with flexibility based on project requirements.

Clearance:
Due to the nature of the work, you must be eligible to obtain DV (Developed Vetting) clearance
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