Senior Developer

Senior Developer

Full-time | Permanent | Remote (UK)

Salary: Up to £70,000 depending on experience

About NASGP

NASGP is a membership organisation founded by GPs to support sessional GPs and general practice. We now support around 5,000 GP locums, and our LocumDeck platform has enabled more than 140,000 bookings between GP members and practices.

Our work is focused on supporting GP morale and retention, helping flexible GPs work effectively and enabling practices to access the workforce they need.

The opportunity

Our platform, LocumDeck, is a live and revenue-earning and used every day by GPs and practices. We are partway through moving it from legacy PHP 8 to Laravel, MariaDB, React and TypeScript, while new NHS and private-provider work keeps arriving.

We need an experienced, hands-on Senior Full Stack Developer to lead that move in a parity-tested, de-risked way. You will write code alongside our developer, who knows the system inside out.

This role is as much about judgement as code. You will explain trade-offs in plain English to non-technical colleagues, including our Product Manager, a former GP. You’ll also debate the detail with our technical advisor and push back when you disagree. If you can do both, we would like to hear from you.

The initial focus

The successful candidate will:

• Lead the migration of LocumDeck from V1 to V2.
• Deliver full-stack features across the PHP, Laravel, MariaDB, React and TypeScript stack.
• Assess and improve our current architecture, codebase and development practices.
• Build integrations in a scalable and maintainable way.
• Strengthen testing, security, CI/CD, infrastructure, backup and disaster recovery arrangements.
• Plan the migration of the V2 platform from Plesk and CentOS to Microsoft Azure or AWS.
• Establish and maintain clear standards for code quality, structure and architecture.
• Help shape a longer-term technology roadmap aligned with our business priorities and plans for sustained growth.

The person we are looking for

We are a small, focused team, so we need someone who is ready to roll up their sleeves, take ownership and get on with the job.

The successful candidate will:

• Enjoy writing code while also providing technical leadership.
• Balance immediate technical and operational priorities with longer-term development.
• Bring strong technical judgement and practical problem-solving skills.
• Be confident putting forward an opinion and constructively debating the right course of action.
• Explain technical issues and decisions clearly to both technical and non-technical colleagues.
• Work collaboratively with our current developer, Product Manager and wider leadership team.
• Be motivated by building technology that supports GPs, general practice and wider primary care.

Key responsibilities

• Work with our current developer and Product Manager, taking a senior role in developing and improving our SaaS platform, LocumDeck.
• Build integrations in a scalable and maintainable fashion.
• Actively implement best practices regarding code quality, structure and architecture.
• Lead the V1 to V2 migration in a parity-tested, de-risked manner.
• Scope a plan to migrate the V2 platform off Plesk/CentOS hosting to Azure/AWS.
• Design and implement CI/CD pipelines and infrastructure-as-code for repeatable, safe deployment.
• Establish backup, disaster recovery and restore-tested recovery processes.
• Deliver full-stack features across the PHP/Laravel/MariaDB/React stack.
• Contribute to code review culture and technical standards.
• Validate our current architecture and codebase, proposing improvements and driving them through.
• Work closely with the Product Manager to create creative solutions.
• Give constructive feedback.
• Pair code where appropriate and valuable.
• Work closely with senior staff to understand the core business problems we are trying to solve.
• Write suitable automated tests and work closely with QA to ensure code is working as expected.
• Establish quality standards and ensure all code meets them.
• Support the business in setting its strategic technology roadmap.

Essential technical skills

Detailed knowledge of:

• Working with legacy PHP applications and migration to modern versions in a de-risked manner.
• Azure or AWS and migration of legacy PHP codebases onto cloud providers.
• Security, compliance and data protection (GDPR, OWASP baseline).
• Laravel and React TypeScript at an advanced level.
• Fluent, current use of AI coding assistants (Claude / Claude Code preferred) inside a test-driven workflow, with the ability to hit the ground running on our AI-accelerated V2 migration approach.
• Design patterns and architectural modelling for modern web applications.
• Jira management and integration with CI tools (for example GitHub Actions or Azure DevOps).
• Git with mature branching, PR review and CI-gated workflows.
• Automated testing using PHPUnit, Playwright and Jest.
• Integration and parity testing.
• OWASP Top 10.
• OAuth authentication and JWT implementation.
• Working within the Linux console during migration.

Experience with IONOS and Plesk for server administration is a plus.

Other essential skills

• A track record of both creative and practical solutions to problem solving.
• Ability to work under pressure and deliver on deadlines.
• A 'can do' attitude and willingness to go the extra mile.
• Ability to research subjects and proactively suggest improvements to systems and processes.
• A keen learner, open to new ideas and willing to adapt.
• Strong understanding of clean code and agile development practices.
• Comfortable working directly with customers in a transparent, start-up environment.
• A user-centric mindset.

Other non-essential but preferable skills

• Knowledge of the medical profession, particularly GPs.
• NHS DTAC awareness.

Role details

• Full-time and permanent.
• Fully remote, with occasional in-person meetings in Chichester, London or Manchester.
• Salary: Up to £70,000, depending on experience.

How to apply

Apply through LinkedIn with your CV.

Our process: a technical interview with our technical advisor, a video call with our Managing Director and Product Manager, then a 45-minute working session on a realistic scenario. Please tell us at any stage if you need any adjustments.

Closing date: Sunday 22 November 2026 We review applications as they arrive and may close early if we find the right person.