Senior FullStack Engineer

• Design and develop Python services and backend features that automate and support core financial operations such as payments, reconciliations, and reporting. • Own part of the platform and be responsible for the smooth operation of associated business processes and their KPIs. • Identify opportunities to use AI in pragmatic ways to improve internal tooling, automate manual workflows, and enhance product capabilities.

• Bring 7+ years of professional experience in software engineering. • Have strong proficiency in Python including writing well-structured async code, type hints, and unit tests. • Have experience building backend services using frameworks such as FastAPI. • Have strong SQL skills with experience working with relational databases such as PostgreSQL or MySQL. • Have experience designing and maintaining RESTful APIs. • Have experience building or maintaining automation and integrations that support financial or operational workflows. • Have experience working with message queues or background job systems. • Be proficient with Git and collaborative development workflows. • Have experience working with containerised environments such as Docker and CI/CD pipelines. • Have basic knowledge of cloud infrastructure with hands-on experience in at least one of AWS, GCP, or Azure. • Be comfortable collaborating directly with business stakeholders to understand requirements and translate them into practical technical solutions. • Be comfortable working in fast-paced environments where accuracy, reliability, and clear communication are essential. • Have experience maintaining codebases for business-critical systems. • Have a practical interest in applying AI tools and LLM-based capabilities to real product or operational problems.

• Have experience integrating third-party AI APIs or building AI-assisted internal tools. • Have the ability to evaluate where AI adds value and where conventional software or workflow automation is the better solution. • Have knowledge of lending products and lending operations. • Have awareness of financial concepts, accounting flows, or reconciliation processes. • Have experience with Angular and TypeScript on the frontend.

• Design and develop new Python services and backend features that automate and support core financial operations such as payments, reconciliations, and reporting. • Participate in the full software development lifecycle from design and implementation to testing, deployment, and monitoring. • Own part of the platform and be responsible for the smooth operation of associated business processes and their KPIs. • Collaborate closely with Product, Design, and business users to understand, challenge, and refine requirements. • Provide second-line support during business hours, helping to troubleshoot and resolve system issues that impact customers. • Support junior engineers through PR reviews and pairing. • Apply strong SQL skills to troubleshoot and improve the performance of data management and retrieval across databases. • Identify opportunities to use AI in pragmatic ways to improve internal tooling, automate manual workflows, or enhance product capabilities. • Build and maintain AI-assisted features and integrations in a reliable, observable, and cost-conscious way. • Work with stakeholders to prototype, test, and iterate on AI-enabled workflows while keeping a strong engineering bar for quality, safety, and maintainability. • Help establish practical patterns for using AI in production including structured outputs, evaluation, fallback handling, and human review where appropriate.

Abound is one of the most exciting fintech stories in the UK right now. In just five years, the co-founders have built a profitable, fast-growing lending platform that was named the UK's number one fastest-growing tech company by The Sunday Times in 2026, with nearly 500% annual revenue growth. The company generated £69 million in revenue and £9 million in profit before tax in 2024, which is remarkable given that, among the top 15 high-growth UK companies tracked by Sifted, Abound was the only profitable one. They have secured £2.2 billion in lending capacity from Citi, Deutsche Bank, Waterfall, and others, and have been listed among the top 250 global fintechs by CNBC. What makes Abound especially interesting as a place to work is the leadership pedigree: Gerald Chappell was previously a Partner at McKinsey and EY, where he led digital lending and credit analytics solutions globally, while Dr Michelle He was a Director at EY with a PhD in machine learning. The broader leadership team brings experience from Goldman Sachs, Citi, Airbnb, and other major institutions. The UK Glassdoor entity sits at 4.6/5, with every single employee recommending it to a friend. What comes through in reviews is the flat structure, data-driven culture, quick career progression, and the chance to learn directly from seriously experienced leaders. Everyone gets equity ownership, a 30-day paid sabbatical after 4 years, a free WellHub membership, and plenty of team socials. A couple of things worth knowing: some Glassdoor reviews flag high targets and performance pressure, and Abound runs a hybrid model from its London offices rather than being fully remote. That said, if you want to be part of a profitable, rapidly scaling UK fintech where your work has a real impact on making credit fairer for millions of people, Abound is a brilliant place to do it.

• Receive equity ownership in the company. • Work hybrid with 3 days a week in the London office. • Receive 25 days holiday a year plus 8 bank holidays. • Take 2 paid volunteering days per year. • Receive one month paid sabbatical after 4 years. • Access an employee loan benefit. • Receive free gym membership. • Enjoy a team wellness budget for group activities.

Abound is redefining consumer lending in the UK and beyond using advanced AI and Open Banking data to make fair, affordable personal finance available to more people. Rather than relying almost entirely on credit scores, Abound looks at the full financial picture to build a deeper understanding of each customer's situation. Having issued over £1.3bn in loans directly to customers with market-leading credit performance, the company reached profitability just 2.5 years after launch. Backed by £2bn+ of funding from investors including Citi, GSR Ventures, and Deutsche Bank, Abound is recognised as one of Europe's fastest-growing fintechs.