Senior Backend Developer in London

Senior Backend Developer in London

London Full-Time 120000 - 120000 £ / year (est.) Home office (partial)
WeEngage Group | B Corp™

At a Glance

  • Tasks: Build a digital bank and tackle complex distributed systems challenges.
  • Company: Join a global fintech unicorn shaping Europe's financial infrastructure.
  • Benefits: Competitive salary up to £120k, equity, and hybrid work model.
  • Other info: Enjoy autonomy and influence over architecture in a dynamic team.
  • Why this job: Make a real impact on financial systems used by millions globally.
  • Qualifications: Strong backend experience in Kotlin, Go, or JVM environments required.

The predicted salary is between 120000 - 120000 £ per year.

What if you could help build a digital bank used by millions of users globally? WeEngage are partnered with a global fintech unicorn that is quietly building some of the most ambitious financial infrastructure in Europe. They're scaling rapidly, investing heavily in engineering, and hiring Senior Backend Engineers to help shape the next phase of growth.

You’ll tackle the challenges of scaling high-volume distributed systems across multiple markets, helping shape architecture, reliability, and the future of financial infrastructure. This isn't a role where requirements are handed down and tickets appear in your backlog. You’ll work in small, autonomous teams with genuine ownership of what you build—from design and implementation through to production and continuous improvement.

You’ll likely enjoy this role if you:

  • Want to solve complex distributed systems challenges at scale
  • Enjoy influencing architecture, not just writing code
  • Like taking ownership of services in production
  • Thrive in environments where engineers are trusted to make decisions

Tech-wise: we're interested in engineers with strong backend experience from Kotlin, Go or JVM-based environments, alongside exposure to cloud-native architectures and modern engineering practices.

London (Hybrid) - 3 days in their Central London office

Salary up to £120k base + equity

Primary tech stack: Kotlin, Go, Kafka, AWS, Kubernetes

If you're currently building scalable backend systems and want to work on something with genuine technical complexity and global impact, I'd be happy to share more.

Senior Backend Developer in London employer: WeEngage Group | B Corp™

WeEngage offers an exceptional work environment for Senior Backend Developers, where innovation and autonomy are at the forefront. With a strong focus on employee growth, you will have the opportunity to influence architecture and tackle complex challenges in a rapidly scaling fintech unicorn. Located in the heart of London, the hybrid work model promotes a healthy work-life balance while providing access to a vibrant tech community and competitive benefits, including a generous salary and equity options.

WeEngage Group | B Corp™

Contact Details:

WeEngage Group | B Corp™ Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Senior Backend Developer in London

Tap into Campus Networks

If you're still in uni, don’t forget to engage with your campus's career services and attend finance-related events. Banks often do presentations and recruitment drives on campus, so put yourself out there and make use of these opportunities to show off your passion for the field.

Get Certified

Consider pursuing relevant certifications like the CFA or ACCA while you’re job hunting. They not only beef up your CV but also connect you with professional bodies which can lead to networking opportunities and even job openings in banking and financial services.

Connect on Professional Platforms

Join finance-focused groups on platforms like LinkedIn and engage in discussions. This can really help you stand out from the crowd, allowing potential employers to see your knowledge and interest in industry trends. Plus, you might stumble upon job postings shared exclusively within the group.

Apply Directly and Be Proactive

Don’t shy away from reaching out directly to firms like WeEngage Group | B Corp™. Use their websites and apply through them, but also consider following up with a polite email to express your enthusiasm. Being proactive can make a huge difference in getting noticed in the competitive financial services sector.

We think you need these skills to ace Senior Backend Developer in London

Kotlin
Go
JVM-based environments
Cloud-native architectures
Distributed systems
Architecture design
Scalability

Some tips for your application 🫡

Show Off Your Numbers!:In the banking and financial services world, quantifiable achievements are key. Make sure your CV highlights your grades in relevant subjects, any financial certifications you hold, and specific projects where you've delivered measurable results. Employers love to see how your skills translate into real-world success.

Tailor Your Cover Letter to the Role:When applying for a full-time position, your cover letter should make a direct connection between your experience and the job description. Don't just state your enthusiasm for finance—dive into how your background in banking or financial analysis sets you apart. Let your passion shine through while being specific about what you can bring to WeEngage Group | B Corp™.

Include Relevant Financial Software Experience:If you've worked with financial modelling tools or software like Excel, SAP, or specific analytical tools during your studies or internships, bring that up! Highlighting your proficiency can really make your application pop and show you're ready to hit the ground running in a full-time role.

Research and Reflect:Before hitting that 'apply' button on WeEngage Group | B Corp™'s website, do a little digging. Look up their recent projects, values, and culture. Reflecting their ethos in your application can make a huge difference and show you’re genuinely interested in being part of the team!

How to prepare for a job interview at WeEngage Group | B Corp™

Brush Up on Financial Analysis Skills

Make sure you're well-versed in financial concepts and analytical techniques relevant to banking and financial services. Get comfortable with tools like Excel for modelling or financial forecasting, as technical questions in this area are common during interviews with WeEngage Group | B Corp™.

Prepare for Case Studies

Expect to tackle case studies that demonstrate your problem-solving skills in real-world banking scenarios. Familiarise yourself with the types of problems you might face—think risk assessments or investment evaluations—and be ready to articulate your thought process clearly.

Show Your Passion for Finance

Since this is a full-time position, employers at WeEngage Group | B Corp™ will be keen to see your genuine interest in finance. Be prepared to discuss recent industry trends or news articles that excite you, showcasing your enthusiasm and engagement with the field.

Network with Industry Professionals

Before your interview, reach out to current or former WeEngage Group | B Corp™ employees on platforms like LinkedIn. They'll offer unique insights into the company's culture and the interview process, which can give us a delightful edge in showcasing a good fit for the team.