At a Glance
- Tasks: Design and build robust software while collaborating closely with the business.
- Company: Leading banking tech firm in London with a focus on innovation.
- Benefits: Competitive daily rate, hybrid work model, and opportunities for professional growth.
- Other info: Exciting environment with a focus on continuous learning and development.
- Why this job: Join a dynamic team using cutting-edge tech to shape the future of banking.
- Qualifications: Experience in Kotlin, React, and agile practices; strong coding skills required.
Daily rate: £500 - £700 (inside IR35)
Duration: 6 - 12 months
Hybrid: 3 days per week in office
Start: ASAP
We're looking for a hands-on engineer who thrives in a collaborative XP environment and enjoys working across the full stack. You'll partner closely with the business, ship frequent releases, and have a real influence on product and technical direction.
How we build
- XP practices: Test-Driven Development, pair programming, continuous refactoring, trunk-based development, and frequent production releases.
- Human-in-the-loop AI: We use GitHub Copilot to improve quality while keeping humans in control. We iterate in small steps, uphold code quality, and share learnings.
- DevOps mindset: Teams own their CI/CD pipelines and collaborate closely with SRE partners to run resilient services in production.
Your key responsibilities
- Design, build, and maintain robust, well-tested software; keep solutions simple and evolvable.
- Work directly with the Business to shape product goals and iterate quickly on value.
- Willingness to work full stack, Back End and Front End Development.
- Own build and deployment: evolve CI/CD pipelines; support, monitor, and continuously improve production services.
- Guide architecture: make pragmatic architectural decisions, improve system design, and reduce complexity over time.
- Champion engineering excellence: pair, review, refactor, and share knowledge to raise the bar for the whole team.
- Use AI well: apply GitHub Copilot to speed up small, safe iterations; keep humans in the loop; share prompts, patterns, and learnings with the team.
Your skills and experience
- Kotlin development, or experience in Java/Scala and a desire to cross train.
- TypeScript and ReactJS with experience using a JVM language on the server side (10+ years of professional software development).
- Strong grounding in Object-Oriented and/or Functional programming concepts.
- Proven use of XP/agile practices: TDD, acceptance testing, pair programming, continuous integration.
- Experience applying iterative development to deliver high-value outcomes in complex domains.
- Experience using AI development tools such as GitHub Copilot as part of an iterative, human-in-the-loop workflow. We value developers who use Copilot to accelerate small, frequent iterations, rather than delegating decisions to AI.
- Familiarity with CI/CD, observability, and operating production systems.
*Rates depend on experience and client requirements.
Senior Full Stack Developer (Kotlin, React) - Banking - London employer: Salt Search Careers
As a leading global firm, we pride ourselves on being an excellent employer that values innovation and collaboration. Our work culture fosters continuous learning and growth, providing employees with opportunities to enhance their skills while contributing to critical services in the UK. With a strong focus on employee well-being and a supportive environment, we ensure that our team members thrive both personally and professionally in vibrant locations like London, Manchester, Ipswich, and Cheltenham.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Full Stack Developer (Kotlin, React) - Banking - 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 Salt Search 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 Salt Search 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 Salt Search 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 Senior Full Stack Developer (Kotlin, React) - Banking - 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 Salt Search 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 Senior Full Stack Developer (Kotlin, React) - Banking - London at Salt Search 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 Salt Search 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 Salt Search 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 Salt Search 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 Salt Search Careers, so it's relevant and sparks conversation during your interview.
