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- Tasks: Revamp backend systems for scalability and tackle exciting engineering challenges.
- Company: A fast-growing YC-backed company revolutionising financial workflows with AI.
- Benefits: Competitive salary, flexible work options, and opportunities for professional growth.
- Why this job: Join a mission-driven team and shape the future of financial technology.
- Qualifications: Experience in backend development and a passion for solving complex problems.
- Other info: Collaborate closely with leadership in a dynamic, high-autonomy environment.
The predicted salary is between 36000 - 60000 £ per year.
This role is for engineers who want to scale something that already matters. If you’ve taken a backend platform from "this works" to "this needs to handle 10× more traffic, customers, and data without falling over" and you’re looking to do that again, with more ownership and fewer layers, this is that role. You’ll be shaping the core infrastructure of a product that already processes millions of sensitive financial documents, is used daily to make real financial decisions, and is growing faster than the systems it was originally built on.
The Company A YC hyper scaler building AI native infrastructure for financial workflows. Powering underwriting, funding, and insurance decisions for brokers, insurers, and fintechs across the US and UK. This is production infrastructure embedded directly into customer workflows.
Why This Is Different
Financial services still rely on PDFs, emails, spreadsheets, and manual review, despite the scale, sensitivity, and consequences of the decisions involved. Embedding AI directly into live production systems: document ingestion, data extraction, workflow orchestration, and decisioning. These systems are already trusted by customers and are onboarding faster than ever. The challenge now isn’t finding product-market fit, it’s building the foundations to support the next journey of their growth.
The Challenge You’ll Own
The backend was built for speed-to-market. Now it needs to be rebuilt for scale. That means solving problems like:
- Backend patterns that let a 10 person engineering team ship confidently without breaking existing customers.
- Multi-tenancy at scale, enabling 100's of customers to use their product whilst ensuring security and cloud infrastructure is focused.
- Processing bank statements, tax returns, and other financial documents at massive throughput, with ML pipelines that must be fast, accurate, and reliable.
The Role
This is a hands-on, high-autonomy individual contributor role. You’ll work directly with the CTO, and the Head of Engineering, with real ownership over the systems that matter most.
Senior Software Engineer employer: twentyAI
Contact Detail:
twentyAI Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Software Engineer
✨Tip Number 1
Network like a pro! Reach out to people in your industry, especially those who work at companies you're interested in. A friendly chat can lead to referrals and insider info that could give you the edge.
✨Tip Number 2
Show off your skills! Create a portfolio or GitHub repository showcasing your projects, especially those that demonstrate your ability to scale systems. This is your chance to shine and prove you can handle the challenges of a Senior Software Engineer.
✨Tip Number 3
Prepare for interviews by practising common technical questions and system design scenarios. We recommend doing mock interviews with friends or using online platforms to get comfortable with the format and types of questions you'll face.
✨Tip Number 4
Apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you're genuinely interested in joining our team and contributing to something that matters.
We think you need these skills to ace Senior Software Engineer
Some tips for your application 🫡
Show Your Impact: When you’re writing your application, make sure to highlight how you've taken a backend platform from 'this works' to 'this needs to handle 10× more traffic'. We want to see the real impact you've made in your previous roles!
Be Specific About Your Experience: Don’t just list your skills; give us examples of how you've tackled challenges like multi-tenancy at scale or processing financial documents. We love seeing concrete examples that demonstrate your expertise and problem-solving abilities.
Tailor Your Application: Make sure your application speaks directly to the role. Use the language from the job description and show us why you're the perfect fit for this hands-on, high-autonomy position. We appreciate when candidates take the time to customise their applications!
Apply Through Our Website: We encourage you to apply through our website for a smoother process. It helps us keep track of your application and ensures you don’t miss out on any important updates. Plus, it’s super easy!
How to prepare for a job interview at twentyAI
✨Know Your Tech Stack
Make sure you’re well-versed in the technologies mentioned in the job description. Brush up on backend patterns, multi-tenancy, and any specific tools or languages that are relevant. Being able to discuss your experience with these technologies will show that you’re ready to tackle the challenges head-on.
✨Showcase Your Problem-Solving Skills
Prepare to discuss specific examples where you've taken a system from 'this works' to 'this needs to handle more'. Think about the challenges you faced and how you overcame them. This will demonstrate your ability to scale systems effectively and your readiness for the role.
✨Understand the Business Impact
Since this role involves working with sensitive financial documents, it’s crucial to understand the implications of your work. Be prepared to talk about how your engineering decisions can impact financial workflows and customer trust. This shows you’re not just a coder, but someone who understands the bigger picture.
✨Ask Insightful Questions
Interviews are a two-way street! Prepare thoughtful questions about the company’s growth plans, the current infrastructure challenges, and how they envision the role evolving. This not only shows your interest but also helps you gauge if the company is the right fit for you.