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- Tasks: Lead back end development for a high-traffic mobile app using Kotlin, Java, and GCP.
- Company: Join a global tech organisation with a focus on innovation and collaboration.
- Benefits: Enjoy a stable long-term contract with hybrid working options and a supportive team culture.
- Why this job: Make a real impact on large-scale systems while mentoring and growing your skills.
- Qualifications: Strong experience in Java/Kotlin, RESTful APIs, and modern DevOps practices required.
- Other info: Embrace diversity and inclusion in a dynamic, agile environment.
The predicted salary is between 36000 - 60000 £ per year.
London (Hybrid – 4 days onsite, 1 remote). I’m currently working with a global technology organisation looking to bring on an experienced Senior Back End Engineer (Kotlin/Java/GCP) to join a well-established Mobile App Engineering function.
You’ll be joining a cross-functional, product-aligned feature team working on the back end of a high-traffic mobile application with millions of MAU. This is a long-term contract role offering stability, technical ownership, and the opportunity to work on complex, large-scale systems.
The RoleAs a Senior Back End Engineer (Kotlin/Java/GCP), you’ll play a technical leadership role within the team, helping translate business needs into scalable, well-architected platform solutions. You’ll work closely with mobile, frontend, and backend teams to ensure the platform enables high-quality feature delivery across the app.
This role suits someone who values software craftsmanship, enjoys mentoring others, and thrives in collaborative, agile environments.
Required Experience- Strong experience within the Java ecosystem ideally Kotlin
- Deep knowledge of Spring / Spring Boot
- Experience designing and building RESTful APIs
- Hands-on experience with GCP
- Familiarity with event-driven systems and distributed architectures
- Experience with observability and monitoring tools (e.g. Grafana, Splunk)
- Comfortable working with CI/CD pipelines and modern DevOps practices
- Strong knowledge of Git and collaborative development workflows
- Strong focus on clean, maintainable, well-tested code
- Comfortable working with pair programming and mobbing
- Experience contributing to robust testing strategies across the development lifecycle
- Pragmatic, delivery-focused mindset
- Has operated successfully in Senior Engineer or Technical Lead roles
- Values team success and knowledge sharing
- Comfortable working in ambiguous problem spaces
- Proactive, adaptable, and collaborative
- Enjoys mentoring and supporting the growth of others
If you’re a Senior Back End Engineer looking for a long-term contract working on large-scale mobile platforms, I’d love to have a conversation. Feel free to reach out directly or apply via LinkedIn.
At Pixelated People, we don’t just do inclusion and diversity. We embrace people that have different opinions, perspectives and personalities. Because we believe that by seeing the world from all sorts of angles, we can make life better for all the people who live in it. So we want you to know that the things that make you, you — like your age, ability, background and identity — are things that we celebrate and support.
Senior Back End Developer (Kotlin/Java/GCP) - 12 month Contract (Inside IR35) employer: Pixelated People
Contact Detail:
Pixelated People Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Back End Developer (Kotlin/Java/GCP) - 12 month Contract (Inside IR35)
✨Tip Number 1
Network like a pro! Reach out to your connections in the tech industry, especially those who work with Kotlin, Java, or GCP. A friendly chat can lead to insider info about job openings that might not even be advertised yet.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your best projects, especially those involving RESTful APIs and event-driven systems. This will give potential employers a taste of what you can bring to their team.
✨Tip Number 3
Prepare for technical interviews by brushing up on your knowledge of Spring Boot and CI/CD practices. Practise coding challenges and system design questions to demonstrate your expertise and problem-solving skills.
✨Tip Number 4
Don’t forget to apply through our website! It’s a great way to ensure your application gets seen by the right people. Plus, we love seeing candidates who take the initiative to connect directly with us.
We think you need these skills to ace Senior Back End Developer (Kotlin/Java/GCP) - 12 month Contract (Inside IR35)
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights your experience with Kotlin, Java, and GCP. We want to see how your skills align with the role, so don’t be shy about showcasing your relevant projects and achievements!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you’re passionate about back-end development and how you can contribute to our team. We love seeing enthusiasm and a bit of personality!
Showcase Your Team Spirit: Since we value collaboration, mention any experiences where you’ve worked in cross-functional teams or mentored others. We want to know how you contribute to a positive team environment!
Apply Through Our Website: For the best chance of getting noticed, apply directly through our website. It helps us keep track of applications and ensures you’re considered for the role. Plus, it’s super easy!
How to prepare for a job interview at Pixelated People
✨Know Your Tech Stack Inside Out
Make sure you’re well-versed in Kotlin, Java, and GCP. Brush up on your knowledge of Spring and Spring Boot, as well as RESTful APIs. Be ready to discuss your past projects and how you’ve used these technologies to solve complex problems.
✨Showcase Your Leadership Skills
As a Senior Back End Engineer, you’ll be expected to take on a technical leadership role. Prepare examples of how you’ve mentored others or led a team through challenging projects. Highlight your experience in collaborative environments and how you’ve contributed to team success.
✨Demonstrate Your Problem-Solving Approach
Be prepared to tackle ambiguous problem spaces during the interview. Think about how you approach challenges and be ready to share specific examples of how you’ve navigated complex issues in previous roles, especially in agile settings.
✨Emphasise Clean Code and Testing Strategies
Discuss your commitment to writing clean, maintainable code and your experience with robust testing strategies. Be ready to talk about your familiarity with CI/CD pipelines and how you ensure quality throughout the development lifecycle.
