Senior Fullstack Engineer

Abound

About Abound We’re redefining consumer lending in the UK, and beyond. Using advanced AI and Open Banking data, we make fair, affordable personal finance available to more people. While traditional lenders rely almost entirely on credit scores, we look at the full financial picture - how much you spend, and what you can afford to repay to build a deeper, more accurate understanding of each customer's unique financial situation. And we've shown it works at scale. We’ve issued over £1.3bn in loans directly to customers while delivering market-leading credit performance - for every 10 defaults the industry expects, we see only 3. We also reached profitability just 2.5 years after launch. Backed by £2bn+ of funding from top-tier investors including Citi, GSR Ventures, and Deutsche Bank, we’re recognised as one of Europe’s fastest-growing fintechs (Sifted, CNBC). Now, we’re expanding into new markets and product lines - and we’re looking for ambitious people who want to learn fast, take ownership, and grow with us. Our technology stack: Python (including FastAPI, SQLAlchemy, OpenTelemetry, procrastinate, Uvicorn), Postgres, MySQL, Liquibase, Retool, Docker, CI/CD pipelines, Git, RESTful APIs, and cloud infrastructure on AWS, GCP, or Azure. Our existing frontend stack includes Angular and TypeScript. Who you are: * Seven or more years of professional experience in software engineering * Strong proficiency in Python, including writing well-structured async code, type hints, and unit tests * Experience building backend services using frameworks such as FastAPI * Strong SQL skills with experience working with relational databases such as PostgreSQL or MySQL * Experience designing and maintaining RESTful APIs * Experience building or maintaining automation and integrations that support financial or operational workflows * Experience working with message queues or background job systems * Proficiency with Git and collaborative development workflows * Experience working with containerised environments such as Docker and CI/CD pipelines * Basic knowledge of cloud infrastructure, with hands-on experience in at least one of AWS, GCP, or Azure * Comfortable collaborating directly with business stakeholders to understand requirements and translate them into practical technical solutions * Comfortable working in fast-paced environments where accuracy, reliability, and clear communication are essential * Experience maintaining codebases for business-critical systems * Practical interest in applying AI tools and LLM-based capabilities to real product or operational problems * Experience integrating third-party AI APIs or building AI-assisted internal tools is a strong plus * Ability to evaluate where AI adds value, and where conventional software or workflow automation is the better solution * Knowledge of lending products and lending operations is a major advantage * Awareness of financial concepts, accounting flows, or reconciliation processes is a plus What you'll be doing: * 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 our databases * Identify opportunities to use AI in pragmatic ways, whether 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 What we offer: * Everyone owns a piece of the company - equity * Hybrid with 3 days a week in the office * 25 days’ holiday a year, plus 8 bank holidays * 2 paid volunteering days per year * One month paid sabbatical after 4 years * Employee loan * Free gym membership * Team wellness budget to be active together - set up a yoga class, a tennis lesson or go bouldering

Capi Money

Capi is building the financial infrastructure for emerging markets trade. Backed by $18M+ from top-tier investors like Creandum, Y Combinator, General Catalyst, and angels from Revolut, Checkout, Stripe, and Remitly, we’re building the financial infrastructure that emerging markets deserve. Our mission is to grow GDP in emerging markets by making the global financial system fairer and more accessible. We’re tackling global trade, making it easier for importers to pay their international suppliers. Our platform enables businesses to expand rapidly, create jobs, and be engines of prosperity for their countries. Our team is made up of approx 100 people across 10 countries; we are a group of a highly-ambitious, get-it-done people, who like to work hard on something that has a tangible impact in the world. And we’re looking for more people to join our team! Take a look through Capi’s mission & values. Role Overview You’ll join a small, high-performing team of engineers and product leaders shaping how we scale our platform and our impact. From your first day, you will have the opportunity to work closely with the founding team based across London & Paris to shape the product vision and all parts of our technical architecture. As we scale our products and deepen our presence across emerging markets, this is a role that builds technology to solve customer problems. To do that, you must have empathy and curiosity to get to the root cause of the issue and the creativity to build a solution that balances impact, effort, and delight. Key Responsibilities Delivery * Contribute to the product process from end-to-end, from ideation to building the UI, backend logic, deployment, feedback and measurement * Communicate internally and externally about new features, be it collecting feedback pre-implementation or explaining them on launch * Define and manage delivery milestones, ensuring alignment between engineering and product priorities Technical * Build intuitive and performant web interfaces for business owners in Africa * Implement IT security and data protection best practices in a regulated environment * Proactively drive architectural decisions e.g., improving scalability, observability, and modularity of the codebase * Champion code quality through robust testing, documentation, and reviews Operational * Observe opportunities for improvements internally to help automate our non-tech processes and add to our tech best practices to improve our output and efficiency. Including handling production incidents with confidence Leadership * Mentor junior engineers and contribute to their professional growth through pairing, reviews, and feedback * Represent engineering in cross-functional discussions (including Finance, Operations, Senior Leadership) to help translate business goals into technical plans * Set and uphold team standards for communication, collaboration, and technical excellence Culture * Communicate internally and externally about new features, be it collecting feedback pre-implementation or explaining them on launch Requirements Our tech stack: Typescript, React, NextJS, NodeJS, Express, PostgreSQL * A product mindset is core to how we build - everyone at Capi is encouraged to think about the customer, the business, and the long-term impact of what we ship. * A strong understanding of web development, frontend and backend best practices. While mainly working with JavaScript technologies * Experience in a VC-backed or high-growth engineering team and building products used by customers. * You are comfortable working in an early-stage startup environment with high pace, rapid growth, involvement in the entire product development process, and a high degree of ambiguity * Excellent written and verbal communication skills for expressing ideas, designs, and potential solutions with both technical and non-technical team members and customers * You care about our mission and solving the problems faced by African businesses * Based in London or Paris Bonus points if you: * Speak and write in French & English * Experience in Fintech, payments, wallets or building ledgers * Expertise in security and data protection best practices needed in a FCA regulated business Some projects the team has been working on: * Automated payouts and AI invoice approval * Onboarding + payment automation with Swift network and banking partners across the world * WhatsApp bot that creates quotes for customers based on their responses * Self-serve onboarding flow that collects company information and KYC documents from customers * Asynchronous workers that OCR invoices * Internal tooling to manage and process millions of dollars of transactions What to expect when interviewing with Capi? Our interview process includes: 1. Screen interview with our Tech Recruiter Gracie (30 mins) - Learn about the Capi story and mission. Whilst ensuring we are aligned as an exciting opportunity for what you're looking for 2. Technical challenge with one of our Principal Engineers (1 hr) - Demonstrate your abilities in a whiteboard-style interview with one of our senior team members. We like to keep this as natural as possible, as if you were joining us tomorrow. This interview is to assess your skills, interests, and potential to see the impact you could make. While also ensuring Capi can support your growth 3. Deep dive (1 hr) - Meet the hiring manager and explore your relevant experience and our upcoming projects 4. Founder chat (30 mins) - Meet the founders to learn about Capi's growth plans, mission, and revenue targets. This is also your opportunity to ask any final questions to make sure our journey is right for you. 5. References 6. Offer! Additional Information * This is a full-time position with competitive salary, share options, and benefits * Ideal Start date: March 2026 (we are aware that a notice period may need to be fulfilled and can adjust accordingly) Take a look at what it is like to work at Capi Money across all of our international offices. Capi is an equal opportunity employer and welcomes candidates from diverse backgrounds. We’re all about building a diverse, inclusive team at Capi. Whoever you are, we’d love to hear from you. If there’s anything you need to make the interview process easier—whether it’s accessibility support, a different format, or just a heads-up about what to expect—just let us know, we’re happy to help. We've won some cool awards recently too! Check them out: * Startups UK Top 100 (No. 24) * Viva Technology Top 100 * Welcome to the Jungle's Fintech's Finest Top 50

Causaly

About us: Causaly is redefining how humans acquire knowledge and develop insights in biomedicine. Our AI-powered platform enables researchers and decision-makers to discover and interpret evidence from millions of scientific publications, clinical trials, regulatory documents, and other complex data sources in minutes. We are building the world’s most advanced biomedical knowledge platform, powered by a high-precision Knowledge Graph and GenAI capabilities. Our technology is already used by leading biopharmaceutical organizations to accelerate drug discovery, improve safety, and drive better decision-making. Backed by top-tier investors including ICONIQ, Index Ventures, Pentech, and Marathon, we are scaling rapidly and expanding our product suite and market presence.  We are looking for a Senior Fullstack Engineer to work on our API and business services. You will be responsible for designing and building scalable, reliable, and maintainable web applications. You will collaborate with our product and research teams to build and ship new features, contributing to all aspects of the development lifecycle, from requirements gathering to deployment and monitoring. WHAT WE'RE LOOKING FOR * 4+ years work experience with back-end applications * Solid understanding of Javascript * Familiarity with Node.js * Experience with TypeScript * Good knowledge of web architecture (URIs, HTTP, Caching, etc) * Proficiency in Git version control * Familiarity with UNIX terminal * Excellent knowledge of English language (verbal and written) * Solid understanding of relational databases Preferred Qualifications * Experience working with Knowledge Graphs and graph databases, such as Neo4J * Experience working with Full-Text search databases, such as ElasticSearch * Good understanding of GraphQL * Experience working with Docker * Experience working with a functional programming language * Experience working with AWS or Google Cloud OUR TECHNOLOGY STACK The list below is indicative and not exhaustive of the technologies we use at Causaly. * Node.js * Typescript * Git * ElasticSearch * Neo4J * RxJS * React * Webpack BENEFITS 💰 Competitive compensation package   🩺 Private medical & dental insurance 📔 Life insurance (4 x salary)   🤓 Personal development budget  🧘 Individual wellbeing budget  🌴 25 days holiday plus bank holidays  🥳 Your birthday off!  🚀 Potential to have real impact and accelerated career growth as a member of an international team that's building a transformative AI product. We are on a mission to accelerate scientific breakthroughs for ALL humankind, and we are proud to be an equal opportunity employer. We welcome applications from all backgrounds and fairly consider qualified candidates without regard to race, ethnic or national origin, gender, gender identity or expression, sexual orientation, disability, neurodiversity, genetics, age, religion or belief, marital/civil partnership status, domestic / family status, veteran status or any other difference.