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- Tasks: Build robust, scalable systems for our cutting-edge AI platform.
- Company: Join Capsa, a fast-growing AI startup transforming private equity.
- Benefits: Enjoy private healthcare, remote work options, and a generous referral scheme.
- Why this job: Shape the future of finance with innovative technology and make a real impact.
- Qualifications: 4+ years in software engineering with experience in Python and scalable systems.
- Other info: Fast-paced environment with direct access to founding team and rapid career growth.
The predicted salary is between 48000 - 84000 £ per year.
Capsa is an AI platform that accelerates due diligence and deepens insights for Private Equity funds. We are hiring Staff / Senior Backend Engineers who are comfortable building robust, scalable systems that power our AI platform.
Role: Backend Engineer
Location: London, UK (Hybrid, In-Person 4 days a week)
Experience: Required: 4+ years
Visa: Unfortunately, we don't sponsor visas yet. You must have the right to work in the UK.
At Capsa, we’re on a mission to transform how private capital firms source, analyse, and win deals. Our AI operating system accelerates due diligence, unlocks deeper insights, and helps funds focus on what matters — creating value. We’re lean, ambitious, and obsessed with building a category-defining company. In just 12 months, we’ve grown ARR by 15x, achieved product–market fit with leading multi-billion-dollar PE firms, and expanded across the US, UK, and Europe. Backed by top VCs and senior PE execs from Warburg Pincus, KKR, and Goldman Sachs, we’re just getting started.
The Role: A senior backend engineer at Capsa is expected to own projects and features from conception to production, building the infrastructure and services that underpin our AI platform.
Key responsibilities include:
- Improving our agent's capabilities - design and implement new features that endow our agent with human-level investment expertise.
- Building scalable data pipelines - design and implement systems that ingest, process, and index large volumes of documents and financial data.
- Developing robust APIs and services - create performant, reliable backend services that power our platform.
- Improving connectivity - integrate and incorporate additional data sources into our agent loop, increasing the depth and breadth of the analyses that can be performed.
- Maintaining high code quality - uphold rigorous standards across our codebase, ensuring tech debt doesn’t impede our velocity.
Recent projects include:
- Agentic assistant with a finance-focused toolkit and advanced document authoring features
- Scalable document ingestion and indexing pipeline
- In-house, streaming-first agent framework
- AI-assisted document editor
As an early stage startup, working at Capsa will be hard work, it will be messy and at times it will be stressful. However, you will:
- Work directly with our founding team.
- Participate in the upside of an ultra-growth venture.
- Shape the company's vision and will have a direct impact on its success.
- Have the opportunity for fast career growth.
- Enjoy yourself!
Apply if: You’ll likely be a great fit if most of the following describe you:
- You have 4+ years of experience as a software engineer in a venture backed startup or top tech firm.
- You have taken entire products or features from ideation to production and you’ve measured their impact.
- You have experience with the following technologies (or similar): Python, FastAPI, Postgres, ElasticSearch, RabbitMQ, Redis, message queues, distributed systems.
- You enjoy diving deep into the domain, understanding the problem, and focusing on delivering value to the customer.
- You thrive in a fast paced environment.
Additional Perks: Alongside the core role and growth opportunity, we also offer:
- Private healthcare insurance.
- One month per year remote working.
- Budget for setting up your Home-Office.
- Generous referral scheme (£10k per hired referral).
Senior / Staff Backend Engineer in London employer: Cornerstone VC
Contact Detail:
Cornerstone VC Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior / Staff Backend Engineer in London
✨Tip Number 1
Network like a pro! Reach out to folks in your industry on LinkedIn or at meetups. A personal connection can often get you a foot in the door faster than any application.
✨Tip Number 2
Show off your skills! Create a portfolio or GitHub repo showcasing your projects, especially those that align with what Capsa is doing. This gives potential employers a taste of what you can bring to the table.
✨Tip Number 3
Prepare for interviews by practising common technical questions and system design scenarios. We want to see how you think and solve problems, so be ready to showcase your thought process!
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen. Plus, it shows you’re genuinely interested in being part of our team at Capsa.
We think you need these skills to ace Senior / Staff Backend Engineer in London
Some tips for your application 🫡
Tailor Your CV: Make sure your CV reflects the skills and experiences that align with the Senior/Staff Backend Engineer role. Highlight your experience with technologies like Python, FastAPI, and distributed systems to catch our eye!
Craft a Compelling Cover Letter: Use your cover letter to tell us why you're passionate about working at Capsa. Share specific examples of how you've taken products from ideation to production and the impact they had.
Showcase Your Problem-Solving Skills: In your application, give us a glimpse into how you approach complex problems. We love candidates who can dive deep into challenges and deliver real value to customers.
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 Cornerstone VC
✨Know Your Tech Stack
Make sure you’re well-versed in the technologies mentioned in the job description, like Python, FastAPI, and Postgres. Brush up on your knowledge of distributed systems and message queues, as these will likely come up during technical discussions.
✨Showcase Your Projects
Be ready to discuss specific projects where you've taken features from ideation to production. Highlight the impact of your work and how it contributed to the overall success of the product. This will demonstrate your hands-on experience and problem-solving skills.
✨Understand Capsa's Mission
Familiarise yourself with Capsa's mission to transform private capital firms' operations. Be prepared to discuss how your skills can contribute to their goals, especially in building scalable data pipelines and robust APIs that enhance their AI platform.
✨Prepare for a Fast-Paced Environment
Since Capsa is a startup, they value adaptability and quick thinking. Think of examples from your past experiences where you thrived under pressure or adapted to changing requirements. This will show that you can handle the dynamic nature of their work environment.
