Senior Backend Engineer

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9fin9fin 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.

What you'll work onThe team maintains a strong focus on impact, using technology to deliver value for the business.

While we have a high-level vision from the business, we have autonomy to set our team goals and define our own success.

We take responsibility for our outcomes and emphasize proactive behaviours like ownership and accountability.

As part of a cross functional team, lead projects by defining and designing systems, building proof of concepts, and delivering new service functionality - including APIs, data processing and automation - while collaborating with Product and ClientsDevelopment and engineering primarily on the backend services and web application hosted tools and systems of the 9fin platform.

Play an impactful role within project teams as a senior IC, running code reviews, mentoring other developers, leadership & involvement in early research and experimentation with new technologies providing input for new features and products.

Continually improve the 9fin codebase taking the chance to automate, refactor and document when it’s most impactful.

Very diverse web platforms,.