At a Glance
- Tasks: Develop secure authentication services and integrate with identity providers in a cloud-native environment.
- Company: Leading UK financial services organisation with a focus on innovation.
- Benefits: Competitive day rate, hybrid work model, and inclusive culture.
- Other info: Diverse and inclusive workplace with opportunities for personal growth.
- Why this job: Join a high-performing team and work on impactful digital solutions.
- Qualifications: Experience with JWTs, OAuth 2.0, and collaborative engineering practices.
The predicted salary is between 65250 - 79750 £ per year.
Location: London - Hybrid / 2 days per week onsite
Contract Length: 6 months
Day Rate: Up to £650 a day (Outside IR35)
We're supporting a leading UK financial services organisation in the search for an experienced JWT / JSON Developer to join a high-performing engineering team on an initial 6-month contract. This role will focus on authentication, authorisation and secure service-to-service communication across a large-scale digital platform. You'll be working on OAuth 2.0 and OpenID Connect (OIDC) implementations, JWT-based authentication, and integrations with identity providers within a modern cloud-native environment.
Key Responsibilities
- Develop and maintain authentication and authorisation services
- Implement OAuth 2.0 and OIDC integrations with identity providers
- Work with JSON Web Tokens (JWTs), including issuance, validation, signing and key management
- Contribute to CI/CD pipelines and trunk-based delivery practices
- Write and review technical documentation
- Collaborate with engineering, security and platform teams on solution design and delivery
Essential Experience
- Strong experience working with Identity Providers (IdPs)
- Solid understanding of OAuth 2.0 and OpenID Connect (OIDC)
- Hands-on experience with JSON Web Tokens (JWTs)
- Knowledge of asymmetric cryptography and secure authentication principles
- Experience with Git, CI/CD and modern software delivery practices
- Advocate of TDD and collaborative engineering approaches
Desirable Experience
- Ability to read and understand Java
- Kubernetes experience
- AWS cloud exposure
Reasonable Adjustments: Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients. If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.
JWT/JSON Developer in London employer: Sanderson Careers
Join a forward-thinking company that values innovation and collaboration, offering a fully remote role as a Technical Architect. With a strong emphasis on employee growth, you will have access to continuous learning opportunities and the chance to mentor junior colleagues, all while contributing to impactful digital solutions. Our inclusive work culture fosters creativity and teamwork, making it an excellent environment for professionals looking to make a meaningful difference in technology.
StudySmarter Expert Advice🤫
We think this is how you could land JWT/JSON Developer in London
✨Get Involved in Open-Source Projects
Diving into open-source projects is a brilliant way to showcase your skills and connect with other developers in the community. Not only will you beef up your GitHub profile but you might also catch the eye of someone at Sanderson Careers who values hands-on experience over just theory.
✨Attend Local Tech Meetups
Tech meetups are gold mines for networking and discovering job opportunities, especially in the fast-paced world of software engineering. Check out local listings for events in your area and don’t shy away from introducing yourself. This could lead directly to a temporary position at Sanderson Careers!
✨Showcase Your Work Online
With temporary roles, it’s all about standing out in a short space of time. Create a portfolio website where you highlight your projects and skills. Talk about your code, and provide links to your GitHub repositories. This will not only demonstrate your abilities but will also make it easier for recruiters at Sanderson Careers to see what you bring to the table.
✨Leverage Temporary Job Boards
Don’t forget to check specialised job boards for temporary software development roles. Websites like We Work Remotely or Remote OK often list short-term gigs that can be a perfect fit. Apply directly through our website as well, making sure your application is sharp—temporary roles can move fast!
We think you need these skills to ace JWT/JSON Developer in London
Some tips for your application 🫡
Show Off Your Tech Skills:Make sure your CV highlights your tech stack and any programming languages you’re proficient in. Include specifics about any frameworks or technologies you’ve worked with; they can make you stand out in the sea of applicants. It’s all about showing that you have the chops we need at Sanderson Careers!
Portfolio 2.0:Since you’re applying for a temporary gig, it’s super important to showcase a portfolio that highlights your best projects. Include links to GitHub or any personal projects that demonstrate what you can do in a real-world environment. This gives us a taste of your style and your problem-solving approach!
Keep It Brief and Relevant:With a temporary position, we want to see your ability to hit the ground running. Be concise in your CV and cover letter; stick to experiences that directly relate to the role. Highlight any previous temporary roles or freelance gigs that show your adaptability and quick learning!
Tailor Your Cover Letter:Don’t just send a generic cover letter. Personalise it for JWT/JSON Developer at Sanderson Careers! Mention why this temporary role excites you and how you see yourself contributing in the short run. Show us what you've got and why you're the one for this quick turn-around!
How to prepare for a job interview at Sanderson Careers
✨Nail the Technical Skills
For a software engineering role, you'll likely face technical questions or coding tasks during your interview. Brush up on the relevant programming languages and frameworks that Sanderson Careers uses, and don’t forget to practice some coding challenges on platforms like LeetCode or HackerRank. Showing your coding prowess can really make you stand out!
✨Prepare for System Design Questions
Even for a temporary role, having a grasp of system design principles can be crucial. Be ready to discuss how you would architect a software solution, including discussing trade-offs, scalability, and performance considerations. Having examples from previous projects can really show off your analytical thinking.
✨Demonstrate Your Adaptability
Since this is a temporary role, you'll want to emphasise your ability to hit the ground running. Highlight experiences where you quickly adapted to new technologies or teams. Let’s make it clear to the interviewers at Sanderson Careers that you can learn on the job and deliver results in a short timeframe!
✨Show Off Your Portfolio
Make sure to have a portfolio or GitHub ready showcasing your projects. Having tangible evidence of what you've done—be it personal projects, contributions to open-source, or previous work—can convey how capable you are. Tailor this for what might interest Sanderson Careers, so it's relevant and sparks conversation during your interview.
