At a Glance
- Tasks: Design and develop backend services using Kotlin in a fast-paced investment banking environment.
- Company: Leading investment bank offering a hybrid work model and innovative tech projects.
- Benefits: Competitive daily rate, flexible working, and exposure to cutting-edge technologies.
- Other info: Collaborative culture with opportunities for professional growth and learning.
- Why this job: Join a dynamic team and make a real impact in the finance sector with modern engineering practices.
- Qualifications: Strong Kotlin development experience and familiarity with event-driven architectures.
The predicted salary is between 60000 - 80000 £ per year.
My banking client is looking for 2 experienced Senior Kotlin Software Engineers to join a cloud‑hosted platform team within an investment banking environment. This is a fast‑paced, front‑office‑facing role with a strong emphasis on high‑quality engineering, reliability, and collaborative working practices. The role offers exposure to modern engineering practices and the opportunity to work closely with business stakeholders in a demanding and high‑impact environment.
Key Responsibilities
- Design, develop, test, and maintain backend services using Kotlin
- Contribute across the full software lifecycle: development, integration, and production support
- Implement and support event‑driven architectures, including event sourcing and event streaming
- Work within an Agile/XP environment, utilising pair programming, mob programming, and test‑first development practices
- Build and maintain CI/CD pipelines and deploy services to cloud environments
- Continuously refactor code and uphold high standards of code quality and reliability
- Participate in architectural and technical design discussions
- Collaborate closely with front‑office stakeholders and cross‑functional teams
- Deliver solutions within short timelines and respond to urgent business needs
Essential Skills & Experience
- Strong commercial experience developing production‑grade Kotlin applications (non‑Android)
- Proven experience with Test‑Driven Development (TDD) and test‑first approaches
- Hands‑on experience with event‑driven systems (event streaming and/or event sourcing)
- Experience with CI/CD tools and practices
- Strong background in refactoring legacy code and maintaining clean, maintainable systems
- Experience working in Agile/XP environments, ideally including mob programming
- Excellent communication skills with the ability to engage effectively with business/front‑office stakeholders
Desirable Skills & Experience
- Prior experience in investment banking or financial services, particularly front‑office systems
- Experience with cloud platforms (AWS, GCP, or Azure)
- Familiarity with containerisation technologies (Docker, Kubernetes)
- Experience with Kafka or similar messaging/event platforms
- Understanding of distributed systems design and immutable event patterns
- Experience with observability, monitoring, and incident response tools
- Exposure to low‑latency or high‑availability systems
Rates depend on experience and client requirements.
Senior Kotlin Engineer (Event Streaming/Sourcing) – London employer: Salt Digital Recruitment
Our company is an exceptional employer, offering a dynamic and collaborative work culture that thrives on innovation and high-quality engineering. Located in the heart of London, we provide our employees with competitive daily rates, flexible hybrid working arrangements, and ample opportunities for professional growth within the fast-paced investment banking sector. Join us to be part of a team that values your contributions and supports your career development while working on cutting-edge technologies in a high-impact environment.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Kotlin Engineer (Event Streaming/Sourcing) – 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 Digital Recruitment 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 Digital Recruitment!
✨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 Digital Recruitment 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 Kotlin Engineer (Event Streaming/Sourcing) – 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 Digital Recruitment!
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 Kotlin Engineer (Event Streaming/Sourcing) – London at Salt Digital Recruitment! 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 Digital Recruitment
✨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 Digital Recruitment 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 Digital Recruitment 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 Digital Recruitment, so it's relevant and sparks conversation during your interview.
