At a Glance
- Tasks: Design and build scalable backend systems using Python and TypeScript.
- Company: Join a high-growth US FinTech scale-up with a focus on AI-powered software.
- Benefits: Competitive salary up to £130k, equity, and comprehensive benefits.
- Other info: Work in a dynamic environment with opportunities for growth and innovation.
- Why this job: Make a real impact by influencing product and engineering culture.
- Qualifications: Strong backend experience with Python or TypeScript and knowledge of PostgreSQL.
The predicted salary is between 130000 - 130000 £ per year.
Job Description
Mid & Senior Backend Engineers | Python, Type Script, AI | High-Growth US Fin Tech Scale-Up | New London Team | 5 Days On-Site | Visa Sponsorship | Up to £130k + Equity
The Company
\n We’re partnering with a commercially successful, rapidly growing technology company building sophisticated AI-powered software for global enterprise customers.
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\n Its platform helps organisations complete complex, business-critical work more quickly and accurately by combining modern AI capabilities, proprietary data and intelligent automation.
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\n The company has already achieved significant commercial traction and is now investing heavily in its engineering function.
You’ll join at a stage where you can meaningfully influence the product, technical architecture and engineering culture while building systems used daily by demanding, paying customers.
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The Role | Mid & Senior Backend Engineers | Python, Type Script, AI | High-Growth US Fin Tech Scale-Up | New London Team | 5 Days On-Site | Visa Sponsorship | Up to £130k + Equity
\n You’ll build and scale backend systems supporting the company’s customer-facing products and wider internal operations.
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\n This is a systems-focused role for an engineer who enjoys thinking about data flows, performance, reliability and the way different technologies work together.
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\n You’ll take ownership of technically challenging projects from initial discovery and architecture through to production, working closely with product, engineering and commercial stakeholders.
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- What You’ll Be Doing
- \n \n
- Designing and building scalable backend services
\n - Improving the performance and reliability of data-intensive systems
\n - Developing APIs, integrations and automated workflows
\n - Building internal platforms that help teams operate more efficiently
\n - Designing reliable data models and processing pipelines
\n - Integrating third-party technologies into production systems
\n - Taking technical projects from initial concept through to production
\n - Improving engineering practices as the platform and team scale
\n - Contributing to architectural and infrastructure decisions
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Tech Stack | Mid & Senior Backend Engineers | Python, Type Script, AI | High-Growth US Fin Tech Scale-Up | New London Team | 5 Days On-Site | Visa Sponsorship | Up to £130k + Equity
- \n \n
- Python and/or Type Script
\n - Postgre SQL
\n - Modern cloud infrastructure
\n - APIs and integrations
\n - Distributed systems
\n - Data processing and workflow automation
\n - AI-enabled product infrastructure
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\n You don’t need experience with every technology listed, but you should be comfortable learning quickly and making pragmatic technical decisions.
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- What They’re Looking For
- \n \n
- Strong backend software engineering experience
\n - Production experience with Python or Type Script
\n - Experience owning technical projects end-to-end
\n - Strong knowledge of Postgre SQL, data modelling and system design
\n - Comfortable building APIs, integrations and internal tooling
\n - Experience translating complicated problems into clean technical systems
\n - A strong understanding of reliability, performance and engineering quality
\n - Comfortable working in a fast-moving technology environment
\n - A collaborative approach and clear communication style
\n - Based in or able to commute regularly to London
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\n - \n Nice to have:
\n \n - Experience building data-intensive products
\n - Internal platform or developer-tooling experience
\n - Knowledge of data pipelines and workflow orchestration
\n - Experience with event-driven or distributed systems
\n - Exposure to production AI or machine-learning systems
\n - Experience integrating several external services into a cohesive platform
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Why Join | Mid & Senior Backend Engineers | Python, Type Script, AI | High-Growth US Fin Tech Scale-Up | New London Team | 5 Days On-Site | Visa Sponsorship | Up to £130k + Equity
- \n \n
- Join a commercially successful technology company experiencing significant growth
\n - Build complex systems used by major enterprise customers
\n - Work on modern AI, data and backend-engineering challenges
\n - Take meaningful ownership from architecture through to production
\n - Join a growing engineering function at an influential stage
\n - Work closely with highly technical founders and senior engineers
\n - Influence the architecture, product and engineering culture
\n - Receive a competitive salary, equity and comprehensive benefits
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If you’re a Backend or Full stack engineer who enjoys building complex systems, improving how businesses operate and working with modern AI and data infrastructure, we’d love to hear from you.
Apply with your CV and we’ll be in touch if there’s alignment.
Mid & Senior Backend Engineers | Python, TypeScript, AI | High-Growth US FinTech Scale-Up | New Lond in City of London employer: Owen Thomas | B Corp™
Join an innovative early-stage legaltech startup in Central/East London, where you'll be part of a dynamic team dedicated to making legal advice accessible through cutting-edge AI technology. With a strong funding base and rapid growth, this company offers a collaborative work culture that values autonomy and creativity, providing ample opportunities for personal and professional development. As a Senior Product Engineer, you'll have the chance to make a significant impact on both the product and the company's future while working in a vibrant city known for its tech scene.
StudySmarter Expert Advice🤫
We think this is how you could land Mid & Senior Backend Engineers | Python, TypeScript, AI | High-Growth US FinTech Scale-Up | New Lond in City of London
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Owen Thomas | B Corp™ or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Owen Thomas | B Corp™.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Owen Thomas | B Corp™.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Owen Thomas | B Corp™ that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Mid & Senior Backend Engineers | Python, TypeScript, AI | High-Growth US FinTech Scale-Up | New Lond in City of London
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Owen Thomas | B Corp™.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Owen Thomas | B Corp™ and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Owen Thomas | B Corp™
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Owen Thomas | B Corp™ uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
