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- Tasks: Design and develop scalable backend systems that empower financial freedom.
- Company: Join a forward-thinking fintech company revolutionising the financial system.
- Benefits: Competitive salary, stock options, paid leave, and skill development opportunities.
- Why this job: Make a real impact on how people manage their money in a fast-growing environment.
- Qualifications: 7+ years in backend development with strong Java skills and excellent communication.
- Other info: Collaborative team culture with a focus on clean code and innovative solutions.
The predicted salary is between 43200 - 72000 £ per year.
Who we are
Our vision is simple: a global financial system, without hidden fees or unfair FX rates. With control in the hands of the users instead of the hands of banks. With fund management capabilities to grow your savings for decades and build generational wealth.
What we’re looking for
Do you want to build robust systems that empower financial freedom? As a Lead Backend Engineer, you’ll design, develop, and maintain scalable, secure, and high-performing backend systems that power our innovative products. You’ll collaborate with a talented team to create solutions that drive financial inclusion and transform the way people manage their money. If you’re excited to solve complex challenges and make a meaningful impact in a fast-growing company, we’d love to hear from you!
What you’ll be doing
- The work will focus on greenfield development and improvement of existing systems.
- Projects will include building REST APIs, engineering microservices and evolving a number of systems that our business depends on (e.g. card payments, treasury management, transactions booking, crypto liquidity).
- Our technology stack is based predominantly on Java 25 on the backend with Postgres database.
- We rely on Spring Boot for quick and quality delivery.
- We have a pragmatic approach to develop our business logic, focusing on clean code, with emphasis on maintainability and fast turnaround with TDD, DDD and continuous integration & delivery.
What you’ll need
- Minimum 7+ years of experience in Backend development, with fluency in Java.
- Quick learner with an ambitious and results driven personality, with excellent communication skills (English fluency, verbal and written).
- Track record of building complex products that millions of people use in hyper-growth startups.
- Willingness to work from the London office at least 2 days per week.
Benefits
- Competitive salary.
- Sign-on stock options bonus, so you become part of the success of the company.
- Discretionary performance bonus (stock options).
- Paid annual leave.
- Own the development process that will face on the customer's impact.
- Latest technology to work with.
- Strong team that will help you improve your skills.
Lead Software Engineer, Java employer: Castleisland
Contact Detail:
Castleisland Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Lead Software Engineer, Java
✨Tip Number 1
Network like a pro! Reach out to your connections in the tech industry, especially those who work in finance or startups. A friendly chat can lead to referrals and insider info about job openings that might not even be advertised.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your best projects, especially those involving Java and backend systems. This is your chance to demonstrate your expertise and passion for building robust solutions.
✨Tip Number 3
Prepare for interviews by brushing up on your technical knowledge and problem-solving skills. Practice coding challenges and system design questions that are relevant to the role. We want you to feel confident and ready to impress!
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets noticed. Plus, we love seeing candidates who take the initiative to connect directly with us.
We think you need these skills to ace Lead Software Engineer, Java
Some tips for your application 🫡
Show Your Passion for Financial Freedom: When writing your application, let us know why you're excited about building systems that empower financial freedom. Share your thoughts on how technology can transform the way people manage their money and why you want to be part of that journey.
Highlight Your Java Expertise: Make sure to showcase your experience with Java, especially if you've worked with Java 25 or Spring Boot. We want to see examples of your past projects and how you've tackled complex challenges in backend development.
Emphasise Team Collaboration: We value teamwork, so don’t forget to mention your experience collaborating with others. Talk about how you've worked with cross-functional teams to deliver high-quality products and how you communicate effectively with your peers.
Apply Through Our Website: To make sure your application gets the attention it deserves, apply directly through our website. It’s the best way for us to see your application and get you one step closer to joining our team!
How to prepare for a job interview at Castleisland
✨Know Your Tech Stack
Make sure you’re well-versed in Java 25, Spring Boot, and Postgres. Brush up on your knowledge of REST APIs and microservices, as these are crucial for the role. Being able to discuss your past experiences with these technologies will show that you’re ready to hit the ground running.
✨Showcase Your Problem-Solving Skills
Prepare to discuss specific challenges you've faced in previous projects and how you overcame them. Highlight your experience with TDD and DDD, and be ready to explain how these methodologies have improved your development process. This will demonstrate your ability to tackle complex problems effectively.
✨Communicate Clearly
Since excellent communication skills are a must, practice articulating your thoughts clearly and concisely. Be prepared to explain technical concepts in a way that’s easy to understand, as you’ll need to collaborate with various team members. Good communication can set you apart from other candidates.
✨Align with Their Vision
Familiarise yourself with the company’s mission of promoting financial freedom and inclusion. Be ready to discuss how your values align with theirs and how you can contribute to their vision. Showing genuine interest in their goals will make a positive impression.
