4 of 4 Part-Time Principal Engineer Jobs in Central London

Principal Engineer Lead Tech Strategy for a Profitable FinTech Scale-Up Hybrid (London) or remote within the UK 160,000 per annum plus stock options Python | Django | FastAPI | AWS | Rust | Postgres | Event-Driven Architecture | Machine Learning Principal Engineer - We're working with a leading fintech scale-up thats transforming how small businesses access finance. Backed by … a strong track record and an ambitious mission, theyre now looking for a Principal Engineer to lead the next phase of innovation within one of their most critical product areas. This is a strategic leadership role offering exceptional autonomy and influence. Youll head up the evolution of a high-impact platform responsible for generating personalised credit offers a … core driver of the businesss growth and customer experience. The Opportunity As Principal Engineer, youll take ownership of the technical strategy and architecture for dynamic, data-driven systems that determine the financial products offered to new customers. This is a unique chance to define the future of adaptive credit systems, driving smarter, faster and more relevant lending decisions More ❯

Principal Software Engineer | High-growth, Purpose-Led and A* funded Fintech | Hybrid London **Python, TypeScript, React** A leading fintech scale-up is hiring a Senior Software Engineer to join its high-performing engineering organisation in London. This is an opportunity to contribute to a platform designed to improve finance globally with real impact at scale. The company … first platform. Backed by leading venture capital and impact investors, the organisation is entering a new phase of growth, with engineering at the core. The Opportunity As a Senior Engineer, you will play a key role in designing and delivering scalable, reliable systems that handle significant volumes of real-time data and transactions. You'll collaborate with product, data … and platform teams to deliver high-impact features that directly improve user financial wellbeing. This is a hands-on role for an engineer who values clean architecture, measurable outcomes, and meaningful user impact. What Youll Do: Design and implement distributed systems that are resilient, scalable, and secure. Own technical decision-making across architecture and implementation selecting the right tools More ❯

Principal JavaScript Performance Engineer (with C++/Java/C# exposure) Location: London (Hybrid 2 days WFH) Salary: 150,000 - 200,000 (Permanent)pension, private healthcare, gym membership, 25 days + 8 BH holiday allowance, tech/hardware budget. A high-growth software company is building the gold standard in UI frameworks and data-intensive visualisation technology . … structure, no bureaucracy, high-calibre peers. Hybrid work model: central London office, two days WFH. Premium benefits: private healthcare, pension, gym membership, cutting-edge hardware. If youre ready to engineer the engines behind some of the worlds most demanding applications, wed love to hear from you. Apply now and build technology trusted by the Fortune 500. More ❯

Founding Site Reliability Engineer | Stealth Fintech | London | Up to 200k + Equity | London (Min 4 days per week in office) Maze is partnering with a stealth-mode startup that's rebuilding core banking from the ground up. Theyre creating the worlds first open-source, AI-native Thin Ledgerset to replace legacy infrastructure at Tier 1 banks. We're looking … for a Founding Site Reliability Engineer to drive the infrastructure behind mission-critical systems: think active-active, five-nines uptime, and real-time observability at global scale. What You'll Do: Own platform architecture for our next-gen ledger infrastructure Scale multi-region Kubernetes environments across cloud & on-prem Harden distributed systems (Kafka, Redis, CockroachDB) for global banking workloads More ❯