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- Tasks: Join a fintech team to build the intelligence layer for debt markets using Python and FastAPI.
- Company: Fast-scaling fintech with a focus on innovation in financial analysis and data insights.
- Benefits: Top salary, equity, 25 days holiday, hybrid work, and a 7% pension match.
- Other info: Enjoy high ownership and influence in a dynamic, supportive environment.
- Why this job: Make a real impact in finance while working with cutting-edge technology and mentoring others.
- Qualifications: Strong Python experience, API design skills, and ability to communicate technical concepts clearly.
The predicted salary is between 120000 - 120000 £ per year.
We're partnering with a fast-scaling fintech that's building the intelligence layer for debt markets. Think financial analysis, credit data, legal and ESG insights, all delivered at speed to some of the biggest names in banking, asset management and law. They need a Senior Software Engineer to join a cross-functional product team and help shape the backbone of their platform.
What you'll be doing:
- Backend-heavy engineering across a Python/FastAPI stack, working on everything from data pipelines and API design to ML/AI service integration.
- Running code reviews, mentoring engineers, and getting involved early in research and experimentation, not just building to spec.
The stack:
- Python (FastAPI, Flask, strong typing, Pydantic)
- PostgreSQL
- AWS (Lambda serverless + ECS/Docker)
- Internal dev platform with standardised CI/CD pipelines
- Feature flags and automated preview environments
What you'll need:
- Strong Python and web framework experience (FastAPI preferred)
- Solid API design and service-oriented architecture background
- Hands-on with data flow design, from persistent storage to API endpoints
- Good SQL knowledge
- Experience writing testable, maintainable code and conducting code reviews
- Ability to communicate technical decisions clearly to non-technical stakeholders
What's in it for you:
- Top-of-market salary, equity, 7% pension match, private medical, 25 days holiday, hybrid working, and the ability to work abroad up to 3 months a year.
- High ownership, real influence, and a codebase worth caring about.
- 2 days onsite (Central London)
- Salary - Up to £120 + equity
If this sounds like you, please apply for more details.
Senior Software Engineer in London employer: Wave Group
Contact Detail:
Wave Group Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Software Engineer in London
✨Tip Number 1
Network like a pro! Reach out to your connections in the fintech space or join relevant online communities. You never know who might have a lead on that Senior Software Engineer role you’re after.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your projects, especially those involving Python and FastAPI. 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 coding skills and system design knowledge. Practice common algorithms and data structures, and be ready to discuss your past experiences with API design and service-oriented architecture.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who take the initiative!
We think you need these skills to ace Senior Software Engineer in London
Some tips for your application 🫡
Tailor Your CV: Make sure your CV reflects the skills and experiences that match the Senior Software Engineer role. Highlight your Python and FastAPI expertise, as well as any relevant projects you've worked on that showcase your backend-heavy engineering skills.
Craft a Compelling Cover Letter: Use your cover letter to tell us why you're the perfect fit for our fintech team. Share your passion for financial analysis and how your experience aligns with our mission to build an intelligence layer for debt markets.
Showcase Your Projects: If you've got any personal or professional projects that demonstrate your API design skills or data flow design, make sure to mention them. We love seeing real-world applications of your coding prowess!
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you don’t miss out on any important updates from our team!
How to prepare for a job interview at Wave Group
✨Know Your Tech Stack
Make sure you’re well-versed in Python, FastAPI, and the other technologies mentioned in the job description. Brush up on your knowledge of PostgreSQL and AWS, as you might be asked to discuss how you’ve used these tools in past projects.
✨Showcase Your Problem-Solving Skills
Prepare to discuss specific challenges you've faced in backend engineering and how you tackled them. Think about examples where you designed APIs or worked on data flow design, and be ready to explain your thought process clearly.
✨Communicate Effectively
Since you'll need to explain technical decisions to non-technical stakeholders, practice articulating complex concepts in simple terms. This will demonstrate your ability to bridge the gap between tech and business, which is crucial for this role.
✨Be Ready for Code Reviews
Expect to discuss your approach to code reviews and mentoring. Have examples ready that showcase how you’ve helped others improve their code quality and how you ensure maintainability and testability in your own work.