Post Office Ltd
Senior Developer
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Summary
Salary: Competitive plus comprehensive benefits package
Grade: 3A
Reporting Line: Lead Developer
Contract Type: Permanent
Working pattern: Hybrid
Location: London
Closing Date: 22nd October 2026
What To Expect
Senior developers will be responsible for building, maintaining and supporting our internal applications. As a team member in the nascent Digital & Branch Engineering function this role will help deliver new applications and service as we modernise our trading platforms making them vastly better for Postmasters and Customers.
You will be working collaboratively with key stakeholders across the business and embedding best practices aligned to our strategic goal.
This role offers you a unique opportunity to make a tangible impact, drive innovation, and contribute to shaping the future of our organisation and the communities we serve.
What We Can Do For You
Our business is changing and we understand that attracting the right talent is pivotal in driving the positive change needed, to help us achieve our ambitious goals. Beyond a competitive salary, we offer a comprehensive benefits package that includes:
- 27.5 days annual leave (rising to 30 after 2 years), plus bank holidays
- Up to 18% on target bonus opportunity
- Annual car allowance
- Generous pension scheme with minimum 10% employer contribution
- Access to 24/7 digital GP services and our Employee Assistance Programme
- 6 x Life assurance and income protection after 12 months service
- Over 400 online courses, mentoring, apprenticeships, and development programmes
- Access to our benefits platform for exclusive discounts & savings
Click here for a detailed overview of our benefits
What You’ll Need To Succeed
To be successful in this role you will be well versed in:
- Produce and contribute to the development of fully functional, cloud-native applications and microservices.
- Collaborate with the wider development team to support Agile delivery processes.
- Produce and maintain clean, high-quality code that is testable, maintainable, and observable.
- Ensure the best possible performance, quality, and responsiveness of applications.
- Support the full application lifecycle, from concept and design through to testing, release, and ongoing support.
- Accelerate delivery by implementing and leveraging automation, CI/CD pipelines, and development tools.
- Continuously improve and refactor the codebase to increase efficiency, maintainability, and performance.
- Implement and promote development best practices, including code reviews, testing frameworks, and coding standards.
- Support, coach, and mentor junior developers.
- Contribute to and maintain accurate technical documentation.
- Liaise with product teams, project stakeholders, and developers to ensure successful delivery and alignment of expectations.
- Identify, manage, and resolve risks, issues, defects, and technical challenges, while deputising for the Lead Developer when required.
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Technical Requirements
- 3+ years professional experience developing applications in a variety of languages and frameworks (e.g. JavaScript, Java, C#, HTML/CSS, Go, ReactNative)
- Experience of full-stack software development principles, architecture and conventions
- Experience of cloud-native micro-services and distributed systems (ideally AWS)
- Strong understanding of data structures and architectures, using relational and/or non-relational database approaches
- A strong understanding test-driven development and testing conventions
- Experience of developing RESTful APIs
- Understanding of IT security/risk
- Experience with workflow and code versioning tools, such as Jira and Git
- BSc degree in Computer Science, relevant field or equivalent
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About Us
At Post Office Ltd, we’re proud to be at the heart of communities across the UK, upheld by the dedication and service of our postmasters. We offer essential services that people rely on every day, from parcels and banking to identity and government services. While we continue to evolve with digital innovation, our commitment to personal, face-to-face service remains core to who we are.
Our journey is one of reflection, growth, and meaningful change. We’re looking for people who think differently. Those with resilience, purpose, and a deep sense of responsibility to our postmasters, partners and the communities they serve. If you're driven by the chance to make a real impact and help shape a future, built on progress and integrity, we’d love to hear from you. For more details visit careers@postoffice.co.uk
Application Guidance
Our commitment to embracing diversity extends beyond just words. While we’ve outlined key skills above, we recognise that great candidates come from a variety of backgrounds. We value diverse perspectives and are committed to building an inclusive workplace where everyone can thrive.
As a Disability Confident Employer, we recognise the value people with disabilities can bring to our business. If you require any reasonable adjustments throughout the recruitment process or would like further details on the job description, please contact talentacquisition@postoffice.co.uk
We’re thrilled by your interest in this opportunity and truly value every application we receive. Please note the advert may close early if we receive a high volume of applications. Unfortunately, we’re unable to provide individual feedback on all submissions.
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