Senior Full Stack Engineer

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About 9fin

The world's largest asset class, debt, operates with the worst data.

Technology has revolutionized equity markets with electronic trading, quant algos and instantaneous news. However, in debt capital markets, the picture is completely different. It still behaves like it's in the 1980s; trillions of dollars of trades are placed over the phone, news is slow, and corporate credit information is imperfect and scattered.

Our mission is to change this.

9fin's proprietary technology delivers fast and comprehensive financial, credit, legal & ESG analysis. Our clients are able to make faster, more informed decisions, win more business and most importantly, save time.

Our fast growing list of clients include 9 of the top 10 Investment Banks, leading Asset Managers, Hedge Funds and Law Firms.

What you'll work on

As a senior full-stack engineer on our Distressed team, a domain that focuses on companies in financial difficulty. There's a big opportunity to become number one in this space in 2026-it's a $100m market. By exploring the data or following content articles, our clients can find opportunities and build strategies. It's a major pillar for the company, and you will get the chance to make a big impact.

The team maintain 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.

Every day is different, but here's an example of the kind of things you'll work on day to day:

• Work cross-functionally with designers, product owners, and internal stakeholders in finance and legal
• Collaborate within a team of frontend and backend specialists while working as a full-stack engineer
• Use data-driven approaches combined with specialist input
• Build scalable backend systems
• Create intuitive frontend interfaces that are easy for finance and legal professionals to use
• Address technical debt that brings value to the team and business
• Get to know the business and users so you can help the team become the best in the distressed space

Our Tech Stack

• React via Typescript & Vite
• React query
• Jest, React Testing Library, Playwright
• Production workloads on AWS using ECS & lambda serverless functions & event based architectures.
• Typed Python for APIs & Data.
• Flask & FastAPI
• We Postgres!

About You

This role will be a great fit if you:

• You have the full stack software engineering experience to allow you to design and implement functionality and software end to end.
• A strong communicator, who can present to team members and stakeholders (technical and non-technical) how you & your team's ideas will improve our user's experience on the platform as well as the wider technical advantages and tradeoffs of your solution.
• Collaborates well with business colleagues, other engineers, UX Designers and Product managers to collectively lead product innovation achieved via fast delivery and frequent feedback iterations.
• Grows the skills and experience of others in the team in collaboration with our engineering managers using your technical knowledge, experience and team work.
• Proactively identifies tech debt and developer experience improvements and champions technical improvements and initiatives within your team and across multiple teams with the guilds.
• Can effectively advocate for software development best practices, including documentation, testing, code readability, and efficiency, in order to positively influence team outcomes and promote a culture of excellence within the development process.
• Capable of evaluating new technologies by presenting proof-of-concepts that highlight their advantages and disadvantages and how they can be applied in a real world scenario at 9fin.
• Strives to help the team achieve its goals - giving input in different situations ranging from reviewing project success metrics to feeding back on team ways of working.

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.