Engineering Lead II in London

About 9fin

9fin is the AI platform powering global debt markets — the world’s largest asset class at over $145 trillion. Debt markets are vast, global, and mission-critical, yet still run on fragmented data, PDFs, and manual workflows. 9fin replaces this broken infrastructure with a single platform that centralises proprietary credit data, deep analysis, and high-value workflows across global markets. Today, 9fin powers teams at 300+ blue-chip institutions worldwide, including global banks, asset managers, private equity firms, law firms, and advisors. The business is scaling at exceptional speed, with rapid expansion in the US and best-in-class retention driven by deep workflow adoption. We’re at a defining inflection point. With proven product-market fit and strong, global market pull, 9fin is accelerating toward becoming the category-defining platform for debt markets worldwide.

The Opportunity

We are seeking an Engineering Lead II to lead three customer-facing engineering teams across Onboarding & Activation, Mobile, and Office Productivity. These teams are responsible for how customers discover, adopt, access, and engage with 9fin across multiple surfaces and workflows. Together they own critical parts of the customer journey including onboarding, permissions and entitlements, activation, notifications, discovery, mobile experiences, and productivity tooling such as Microsoft Office integrations. You will lead multiple engineering pods (circa 7 engineers total), each with its own product area, roadmap, and technical challenges, while ensuring they operate as a connected ecosystem rather than independent products. Success in this role requires strong organisational leadership, technical depth, and the ability to identify opportunities for shared platforms, reusable services, and common architectural patterns across teams. This role is ideal for a highly technical engineering leader who enjoys operating across multiple domains, helping teams solve complex architectural challenges, and creating alignment between product strategy, customer needs, and engineering execution.

What You’ll Work On

• Build and lead a high-performing team responsible for 9fin's mobile applications, mobile platform services, and productivity tooling.
• Coach and develop engineers across multiple disciplines, helping them grow their technical expertise, product thinking, and leadership skills.
• Shape the technical vision and roadmap for how 9fin integrates into customer workflows beyond the core web application.
• Partner with Product and Design to identify opportunities where mobile, AI, notifications, and productivity tools can create meaningful customer value.
• Guide architectural decisions across mobile applications, Backend-for-Frontend services, Office integrations, and workflow automation capabilities.
• Work closely with AI and Search teams to bring AI-native experiences into customer workflows, including search, recommendations, and intelligent productivity features.
• Collaborate with Platform, Data, Identity, Onboarding, Activation, and Permissions teams to ensure seamless customer experiences across products.
• Drive engineering excellence while maintaining a strong focus on customer outcomes, adoption, engagement, and retention.
• Help establish success metrics and use product analytics, customer feedback, and business outcomes to inform prioritisation and investment decisions.
• Hire, onboard, and develop exceptional engineering talent as these micro teams scale in future.
• Stay engaged with technical design and architecture reviews while empowering engineers to take ownership of implementation details.
• Balance short-term product delivery with long-term platform investments that enable future innovation.

About You

This role will be a great fit if you:

• Have experience leading high-performing product engineering teams and delivering customer-facing products at scale.
• Bring a strong technical background and remain comfortable discussing architecture, system design, API integrations, and modern application development.
• Have experience building or leading teams responsible for mobile applications, productivity tooling, desktop integrations, or workflow-centric products.
• Understand the challenges of API-first architectures and integrating multiple platform services into cohesive customer experiences.
• Have experience delivering AI-powered product experiences and understand how AI can be embedded into real user workflows.
• Are deeply product-minded and can translate customer problems, business goals, and technical constraints into effective solutions.
• Have experience working across multiple engineering domains and building strong partnerships with product, design, platform, AI, and data teams.
• Are passionate about coaching and developing engineers, helping them grow both technically and professionally.
• Use metrics, customer feedback, and business outcomes to guide decision-making and prioritisation.
• Have a track record of balancing engineering quality with fast, iterative delivery.
• Are comfortable operating in ambiguity and helping teams navigate evolving product and technical requirements.
• Care deeply about creating products that customers rely on every day.

Particularly Valuable Experience

• Building mobile-first or multi-surface product experiences.
• Microsoft Office Add-ins, Excel integrations, or other productivity tooling.
• AI-native product development.
• Notification-driven products and engagement systems.
• Content-rich, workflow-heavy B2B SaaS products.
• Financial services, market data, research, or information products.
• Scaling teams through periods of rapid product and organisational growth.

Benefits

We’re a scaling start-up, and we enjoy sharing our success. When the company succeeds, we always reinvest that in our people. We also offer huge amounts of responsibility, an abundance of opportunity for growth and a platform to truly excel.

• Competitive Salary (our salary bands are benchmarked at the top end of the market)
• Equity
• Pension (your minimum contributions are 4% with 9fin matching up to 7%)
• Private Medical Insurance
• Paid sick leave with Income Protection for long periods of illness
• Group Life Assurance
• Season Ticket Loan & Cycle to Work schemes

Time off

• 25 holiday days per year
• Local public holidays (with the ability to exchange them for alternative days)
• Hybrid working model, to allow you the flexibility to decide how, where and when you do your best work
• Work abroad for up to 3 months a year
• 1 month paid sabbatical after 5 years of service
• Enhanced parental leave & flexible working arrangements available

Training & Culture

• Professional learning and development budget
• Quarterly team socials
• Summer and Winter company social events

9fin is an equal opportunities employer. At 9fin we are dedicated to building and promoting a fair and inclusive workplace where everyone can reach their full potential and truly belong. We recognize that building diverse teams enables a more creative and productive environment. If you’re excited about this role but your experience doesn’t perfectly align with the job description, we encourage you to apply anyway. You might just be who we’re looking for — either for this role, or perhaps another.