3094 IT & Software Developer jobs in the UK
Contract PHP Developer - Authentication & Identity
£39,000 - 70,500
Spectrum It Recruitment Limited
City Limits, Reading
£39,000 - 70,500
Requirements
Must:
- Proven experience delivering OAuth2 and OIDC implementations in production environments
- Hands-on experience with leading identity providers (Auth0, Okta, Cognito, Descope, etc.), including Infrastructure as Code configuration
- Strong experience designing end-to-end authentication architectures
- Demonstrated experience migrating legacy authentication systems (sessions to tokens)
- Strong backend engineering experience with Laravel or similar PHP frameworks
- Experience integrating authentication into SSR frontends (Vue.js preferred)
- Solid understanding of RBAC, token security, validation, signing, and trade-offs
- Experience working with API Gateways (ideally GCP API Gateway) - Desirable
- Experience implementing machine-to-machine authentication flows - Desirable
- Knowledge of federated identity (OIDC/SAML, external IdPs) - Desirable
- Experience within regulated industries - Desirable
- Experience designing authentication for partner or external developer ecosystems - Desirable
Responsibilities
- Design and implement a robust OAuth2/OIDC authentication solution using a third-party provider
- Integrate authentication into an existing Laravel backend and Vue.js frontend
- Design and implement token flows for user authentication (browser API) and machine-to-machine integrations (client credentials)
- Implement secure token validation and propagation across services
- Define and implement Role-Based Access Control (RBAC) aligned to product needs
- Lead the migration strategy from session-based auth to token-based auth
- Integrate with API Gateway for request validation and routing
- Deliver federated identity solutions (OIDC/SAML), enabling partner authentication and identity linking
- Collaborate with internal stakeholders to ensure solutions are secure, scalable, and maintainable
Description
We are a high-growth digital platform seeking an experienced Contract PHP Developer to lead the modernization of our authentication and identity layer. This is a hands-on, high-impact contract role lasting 2-3 months, with the potential for an extension. Our focus is on transitioning a live production system to a modern OAuth2/OIDC architecture, emphasizing a pragmatic, security-first approach with minimal disruption to users. We pride ourselves on offering an autonomous work environment where you will have ownership of the delivery.
Something wrong or incorrect with this job? Tell us in the chat 💬 on the right ➡️
You can find PHP Developer salaries in the UK here.
How many PHP Developer jobs are in the UK?
Currently, there are 3094 PHP openings. Check also: Symfony jobs, Laravel jobs, Magento jobs, WordPress jobs, Drupal jobs - all with salary brackets.
Is the UK a good place for PHP Developers?
The UK is one of the best countries to work as a PHP Engineer. It has a vibrant startup community, growing tech hubs and, most important: lots of interesting jobs for people who work in tech.
Which companies are hiring for PHP Developer jobs in the UK?
SwapTix, Collect Solutions Ltd, Arctic Shores, Metropolitan Police, Information Tech Consultants, Government Communications Headquarters (GCHQ), The American School in London among others, are currently hiring for PHP roles in the UK.
The company with most openings is Experis as they are hiring for 103 different PHP Developer jobs in the UK. They are probably quite committed to find good PHP Developers.
The company with most openings is Experis as they are hiring for 103 different PHP Developer jobs in the UK. They are probably quite committed to find good PHP Developers.