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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 OpportunityThe Data Science team is growing at 9fin! We are doing world-class work with groundbreaking technologies to build data-driven products using machine learning, computer vision, natural language processing, speech and audio, and knowledge/data mining. We are looking for a Applied AI Manager to accelerate our application of AI across teams and products. Come and join us, you will get to build large-scale AI powered systems, learn and apply the latest techniques, and work alongside other great researchers and engineers!
Every day is different, but here's an example of the kind of things you'll work on:
Lead the design and delivery of complex ML and GenAI systems, ensuring solutions are robust, scalable, and aligned with business goals.
Guide the team in end-to-end model development - from experimentation and evaluation through deployment and monitoring - with a focus on reproducibility and reliability.
Drive architectural decisions for data-intensive, AI-driven applications, making informed trade-offs between cutting-edge approaches and practical production readiness.
Mentor and grow engineers across levels, sharing best practices in software engineering, ML/AI, and cloud infrastructure.
Collaborate cross-functionally with stakeholders across the company to shape roadmaps, scope ambitious projects, and balance technical innovation with delivery.
Champion engineering excellence - from coding standards and CI/CD pipelines to observability and incident management - creating a culture of technical rigor and continuous improvement.
Be a visible technical leader within 9fin, pushing forward the adoption of AI/ML across teams and influencing company-wide strategy.
About You
This role will be a great fit if you:
Have proven experience leading engineering teams in a high-growth, fast-paced environment.
Care deeply about people development - mentoring engineers, conducting thoughtful performance reviews, and building inclusive, high-performing teams.
Combine strong software engineering skills (Python preferred) with deep knowledge of AI/ML frameworks, GenAI tooling, and modern data/infra stacks.
Have hands-on experience building and deploying ML/GenAI systems in production, ideally in domains with high complexity (finance, legal, or similar data-heavy spaces).
Lead architectural discussions and technical trade-offs while staying close enough to dive into details when needed.
Know your way around cloud infrastructure (AWS preferred) and modern MLOps practices.
Thrive in a collaborative, startup-style environment: adaptable, decisive, and excited to work cross-functionally to deliver real business impact.
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.
Financial & Insurance
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
AI experimentation 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.
Skills Required
- Proven experience leading engineering teams in a high-growth, fast-paced environment
- Experience mentoring engineers, conducting performance reviews, and building inclusive, high-performing teams
- Strong software engineering skills, preferably in Python
- Deep knowledge of AI and machine learning frameworks
- Experience with generative AI tooling and modern data and infrastructure stacks
- Hands-on experience building and deploying machine learning or generative AI systems in production
- Experience in high-complexity, data-heavy domains such as finance or legal
- Experience leading architectural discussions and making technical trade-offs
- Knowledge of cloud infrastructure, preferably AWS
- Knowledge of modern MLOps practices
- Ability to work collaboratively in a startup-style environment and deliver business impact
9fin Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about 9fin and has not been reviewed or approved by 9fin.
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Healthcare Strength — Pay and benefits are presented as including comprehensive medical, dental, and vision coverage, with life, disability, and FSA/HSA options also listed. Built In’s profile additionally describes “100% coverage” for certain health categories, which signals a robust health offering pending plan-detail confirmation.
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Leave & Time Off Breadth — Time off is positioned as generous, including 25 PTO days plus public holidays, paid sick time, and a one-month paid sabbatical after five years. The package is also framed as including a work-from-anywhere allowance in some locations, strengthening the perceived total rewards beyond base pay.
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Parental & Family Support — Parental leave is described as enhanced, with 22 weeks at full pay for birthing parents and 12 weeks at full pay for non-birthing parents. These policies are repeatedly highlighted as a standout element of the overall benefits package.
9fin Insights
What We Do
9fin is the AI-native platform for credit markets. We’re building the data and AI infrastructure behind an essential part of the global economy, one that funds governments, businesses and infrastructure, and keeps capital flowing around the world. By bringing together proprietary data, market intelligence and AI, we give leading financial institutions a complete view of credit and the tools to reduce risk, move faster and make better decisions. More than 350 of the world’s leading credit teams use 9fin, including all of the top 10 investment banks, 80% of trading desks, and asset managers overseeing a combined $17 trillion in AUM. Backed by more than $250 million in funding and valued at $1.3 billion, 9fin is expanding globally, moving deeper across public and private markets, and putting AI into the hands of the world’s most sophisticated credit teams. We’re scaling fast, but we’re nowhere near done. This is the stage where you can genuinely shape what 9fin becomes. You’ll get real ownership, tackle problems that haven’t been solved before, and share in the value you help create. We’re building toward a single goal: becoming the #1 global provider of AI, data, and analytics for the debt capital markets — this decade! If you want to work on meaningful problems at real scale, there’s plenty to do here. We'd love for you to build with us.
Why Work With Us
We're a team with a variety of professional and personal backgrounds. This affords us the opportunity to see things from many different angles. With space to both think deeply but also act quickly, responsibility and flexibility are abundant in equal measures at 9fin.
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