Senior Software Engineer
Department: Tech Hub
Employment Type: Full Time
Location: Birmingham, England, United Kingdom
Compensation: circa £70,000
Description
Contract type: Permanent
Hours: 37.5/ week
Salary: circa £70,000 depending on experience
Location: London, Canary Wharf
WFH policy: Employees are required to attend the office 2 days/week
Flexible working: Variety of flexible work patterns subject to line manager discretion e.g. Compressed 9-day fortnight.
Reports to: Software Engineering Manager
Deadline Note: We reserve the right to close the advert before the advertised deadline if there are a high volume of applications.
Role Summary: We’re looking for a Senior Software Engineer to join our delivery team, part of a broader engineering space that delivers critical systems to help the UK achieve Net Zero by 2050. Our digital platform underpins multiple applications, including contract management, task management, automate workflows, automate repetitive tasks, standardize templates, settlement tools, forecasting engines, calculation services, analytics, dashboards and data portals that enable the business to meet this ambitious goal.
As a technical leader, you will collaborate with the Principal Software Engineer & Architect to define system, mentor team members, and champion engineering best practices, while remaining actively involved in hands-on development. Although this role does not include direct line management, it requires strong technical leadership and the ability to guide the team through complex challenges.
Key Responsibilities
* Design, develop, and maintain scalable and reliable software solutions, ensuring alignment with Principals and Architects.
* Collaborate with cross-functional teams, including Product, QA, and DevOps, to deliver high-quality features.
* Lead code reviews and technical discussions, and contribute to architectural decisions.
* Lead complex coding tasks; ensure code quality
* Identify and resolve performance and scalability issues.
* Write clean, maintainable, and well-documented code.
* Mentor and support junior and mid-level engineers.
* Stay current with emerging technologies and industry trends.
* Estimate work; lead delivery of features from the roadmap.
* Solve ambiguous problems with scalable solutions.
Skills Knowledge and Expertise
Essential:
* Strong expertise in Python web development frameworks (e.g., Django) and JavaScript/TypeScript, with experience working in cloud environments such as AWS, Azure, or GCP.
* Skilled in applying software technical design principles to build scalable, secure, and maintainable solutions within modern cloud-based architectures.
* Bachelor’s or Master’s degree in Computer Science, Engineering or equivalent experience.
* Experience with CI/CD tools and practices.
* Strong problem-solving & communication skills
* Adaptability/willingness to learn (e.g., Agile)
* Technical leadership (mentoring, best-practice guidance)
* Better Together
o Works as a technical leader within the delivery team, actively collaborating with Managers, Principal Engineer, QA, DevOps and Architects to shape robust, scalable solutions.
o Shares knowledge consistently through code reviews, architectural discussions, documentation and mentoring, raising overall engineering standards.
o Communicates clearly and respectfully, constructively handling technical disagreement while maintaining trust and alignment across teams.
* Powered by Curiosity
o Demonstrates curiosity about the problem domain, system behaviour and emerging technologies, using learning to continuously improve platform capability and reliability.
o Proactively identifies opportunities to simplify, optimise or modernise systems, balancing innovation with pragmatism and delivery needs.
* Own Every Outcome
o Takes end‑to-end ownership of technical solutions, from design and implementation through to production readiness, performance and support.
o Holds themselves accountable for code quality, scalability and reliability, addressing issues proactively rather than reacting to failures.
Desirable:
* Experience with modern frameworks and libraries (e.g., React, Node.js, Terraform, Celery)
* Experience with database schema design and query optimisation
Employee Benefits
As if contributing to and supporting work that makes life better for millions wasn’t rewarding enough, we offer a full range of benefits too. Key benefits that may be available depending on the role include:
* Annual performance based bonus, up to 10%
* 25 days annual leave, plus eight bank holidays
* Up to 8% pension contribution
* Financial support and time off for study relevant to your role, plus a professional membership subscription
* Employee referral scheme (up to £1500), and colleague recognition scheme
* Family friendly policies, including enhanced maternity leave and shared parental leave
* Free, confidential employee assistance, including financial management, family care, mental health, and on-call GP service
* Three paid volunteering days a year
* Season ticket loan and cycle to work schemes
* Family savings on days out and English Heritage, gym discounts, cash back and discounts at selected retailers
* Employee resource groups
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