Senior Backend Engineer

Senior Backend Engineer

Full-Time 43200 - 72000 £ / year (est.) No working from home possible
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At a Glance

  • Tasks: Build robust, scalable systems for our cutting-edge AI platform.
  • Company: Join Capsa, a fast-growing AI startup transforming private equity.
  • Benefits: Enjoy remote work, home-office setup budget, and a generous referral scheme.
  • Other info: Fast-paced environment with opportunities for rapid career growth.
  • 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.

The predicted salary is between 43200 - 72000 £ 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.

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.

About Capsa AI

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

  • 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

  • Agentic assistant with a finance-focused toolkit and advanced document authoring features
  • Scalable document ingestion and indexing pipeline
  • In-house, streaming-first agent framework

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.

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.

Benefits

  • One month per year remote working.
  • Budget for setting up your Home-Office.
  • Generous referral scheme (£10k per hired referral).

Senior Backend Engineer employer: Capsa AI Ltd

Capsa is an exceptional employer for Senior Backend Engineers, offering a dynamic and fast-paced work environment in London. With a strong focus on innovation and growth, employees have the unique opportunity to work closely with the founding team, directly influencing the company's vision and success. The hybrid work model, generous benefits including remote working options, and a culture that encourages personal and professional development make Capsa an attractive place for those seeking meaningful and rewarding employment.

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Contact Details:

Capsa AI Ltd Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Senior Backend Engineer

Tip Number 1

Network like a pro! Reach out to folks in your industry on LinkedIn or at meetups. A friendly chat can lead to opportunities that aren’t even advertised yet.

Tip Number 2

Show off your skills! Build a personal project or contribute to open source. This not only sharpens your abilities but also gives you something tangible to discuss during interviews.

Tip Number 3

Prepare for the technical interview! Brush up on algorithms and system design, especially those relevant to backend engineering. Practice coding challenges to keep your skills sharp.

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 at Capsa. Plus, we love seeing candidates who are proactive!

We think you need these skills to ace Senior Backend Engineer

Python
FastAPI
Postgres
ElasticSearch
RabbitMQ
Redis
Message Queues

Some tips for your application 🫡

Show Your Passion:When you're writing your application, let your enthusiasm for the role and our mission shine through. We want to see that you’re genuinely excited about building robust systems and making an impact in the private equity space.

Tailor Your Experience:Make sure to highlight your relevant experience in backend engineering. We’re looking for folks who have taken products from ideation to production, so share specific examples of your work with technologies like Python and FastAPI.

Be Clear and Concise:Keep your application straightforward and to the point. We appreciate clarity, so avoid jargon and focus on what makes you a great fit for the role. Remember, we’re keen on understanding your journey and how it aligns with our goals.

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. Let’s get started on this journey together!

How to prepare for a job interview at Capsa AI Ltd

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

Prepare to discuss specific projects where you’ve taken features from ideation to production. Be ready to explain your role, the challenges you faced, and how you measured the impact of your work. 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. Think about how your skills can contribute to their goals, especially in building scalable data pipelines and robust APIs. Showing that you align with their vision can set you apart.

Prepare for a Fast-Paced Environment

Since Capsa is a startup, be ready to discuss how you thrive in fast-paced and sometimes messy environments. Share examples of how you’ve adapted to change and maintained high code quality under pressure, as this will resonate with their culture.