Lead Software Engineer

🕒 December 19, 2025

🇬🇧 United Kingdom – Remote

💵 £90k - £110k / year

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

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Thirdfort

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2017

📋 Compliance

💳 Fintech

🔒 Cybersecurity

Compliance • Fintech • Cybersecurity

Thirdfort is a company that provides automated ID verification, anti-money laundering, and Source of Funds checks to protect significant transactions for businesses and their clients. By streamlining the client onboarding process and ensuring compliance with ever-changing regulations, Thirdfort helps businesses reclaim valuable time and safeguard against fraud with advanced security technology. Regulated by the Financial Conduct Authority, Thirdfort prioritizes client safety and data protection while offering reliable verification solutions for various sectors such as legal services and real estate.

📋 Description

• Provide technical leadership within your team and domain, guiding design decisions and architectural direction. • Design, build and deliver complex features and systems that are secure, scalable and maintainable. • Own technical outcomes end-to-end, from discovery and design through to delivery and long-term operation. • Mentor and coach engineers across the team, supporting their technical growth and confidence. • Set a high bar for code quality, testing, observability and operational excellence. • Collaborate closely with Product and Design to shape solutions, challenge assumptions and manage trade-offs. • Lead technical discussions, reviews and incident investigations, helping the team learn and improve. • Contribute to wider engineering initiatives and influence standards across the technology organization.

🎯 Requirements

• You have significant experience building and operating production software in a modern engineering environment. • You’ve led technical design and delivery for complex systems or domains. • You’re comfortable working across backend and/or frontend systems (for example Go, TypeScript, JavaScript, Python). • You have strong knowledge of APIs, data modelling, testing strategies and system design. • You enjoy mentoring other engineers and leading through influence rather than authority. • You can communicate complex technical ideas clearly to both technical and non-technical stakeholders. • You’re comfortable working in a fast-moving, regulated environment where quality and trust are critical.

🏖️ Benefits

• Compensation - £90k - £110k p.a. base salary • Flexible Working Hours • Enhanced parental leave • Work from home allowance • Uncapped annual leave • Enhanced sick leave • Private healthcare with our provider, AXA • Regular company and team socials • Uncapped budget for personal development • Share options for all UK employees • Customisable wellness budget and discounts on well-known brands with our partner ThanksBen