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Software Engineer
Thought Machine's mission is bold - to permanently rid the world's banks of legacy technology. We’ve built the foundations of modern banking through cloud-first technologies. Our team of over 550 engineers across London, New York, Singapore, Sydney and Lisbon has secured $680m+ in funding, backed by investors like Molten Ventures, Eurazeo, Temasek, and JPMorgan Chase Strategic Investments.
We’re proud of our culture - recognised as a UK fintech leader on Glassdoor with top-tier employee equity and innovation awards from Global Finance and the Financial Times. Our team thrives when balanced with fun—the perfect mix to build high-impact technology.
About the Role
Software Engineering sits at the core of Thought Machine. We leverage cutting-edge practices and modern tools to solve complex, unsolved problems in banking. Your work spans full-stack development, from backend services to delightful frontend experiences, built for scale, security, and performance.
Our clients include global financial institutions and regional banks, demanding flexibility to accommodate diverse use cases. Engineers bridge backend and frontend, crafting customised solutions tailored to clients’ needs.
This is a full-time, permanent position based in London, requiring 3 days onsite (with the option to increase to 4 days, including a financial allowance).
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Responsibilities
- Design and implement end-to-end features across applications and services.
- Prioritise security, scalability, performance, and user experience in all solutions.
- Write and maintain automated tests (unit, integration, acceptance, etc.).
- Collaborate with cross-functional teams (backend, frontend, full-stack engineers).
- Translate customer requirements into clear, scalable engineering plans.
- Debug from testing to production environments.
- Own technical decisions while embracing mentorship and best practices.
Essential Requirements
- Expertise with React + TypeScript – building modern web applications.
- Strong proficiency in REST APIs/development services.
- Keen attention to detail and passion for clean, well-tested code.
- Knowledge in integrating automated tests into development workflows.
- Enthusiasm for client-facing projects, including requirement scoping and deliverables.
- A proactive mindset for learning and growing as an engineer.
Desirable Experience
- Background in banking/finance or fintech.
- Cloud experience, AWS or other platforms.
- Proficiency in Golang, Python, or related tooling.
- Understanding of UX/UX paradigms and UI frameworks.
- Familiarity with Figma, design systems, or Augustin (our design tool).
- Exposure to Databases (SQL/NoSQL) or architectures (microservices, networking).
- Kubernetes.scale or shift to our engineering excellence,
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Benefits
- Competitive salary + pension (5% match).
- Life insurance (3x annual salary).
- Generous paid leave:
- Maternity: 6 months fully paid
- Paternity: 4 weeks fully paid
- Shared parental leave (matched to maternity policy)
- 25 holiday days + bank holidays.
- Flexible work hours + cycle-to-work and electric car schemes.
- Team & wellbeing support:
- Sports/clubs (subsidised)
- Wellness resources (plus energy provision: fresh fruit, smoothies, snacks)
- Career development:
- Resourced learning materials & courses
- Two charity days annually
- Comedy nights and rewards pop-ups
- Work environment:
- Collaborative teams composed of Subject Matter Experts (SMEs)
- Open leadership and psychological safety
Why Join Thought Machine?
We value technical excellence above all else. Whether you’re a recent graduate or an experienced engineer, we’re committed to equal opportunities for professional growth. We also encourage applications from ADHD, dyslexia, autistic, and dyslexic engineers—and from all diverse communities.
If deep engineering impact excites you, apply today—we want to build the future of banking with you.
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