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 the Onboarding & Activation team, you will be focused on revolutionizing the initial user experience at 9fin to drive significant growth and revenue. We're directly addressing the challenge of transforming our trial conversion rate, by ensuring new users immediately grasp the immense value of our global, multi-product platform. This involves deeply understanding varied user journeys, streamlining complex onboarding processes, and enhancing feature adoption so that our powerful platform becomes instantly intuitive and valuable for time-pressed financial professionals in the fixed income industry worldwide.

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

• Ideate and lead full-stack end to end software delivery and analysis of high impact user facing experiments and functionality to incrementally solve these user pain points, whilst taking ownership of the product outcomes.

• Release code into front and backend production environments continuously, using techniques such as feature flags to safely release incrementally to users.

• Craft code that meets high quality standards for style, maintainability, and best practices. Maintain and advocate for these standards throughout the engineering org through collaboration with other engineers and code review.

• Lead the technical design and build of your new experiments, functionality or systems by creating short proof of concepts to get fast and actionable feedback before deciding on the next steps.

• Share and contribute to the product vision to focus on allowing 9fin’s platform to scale with our company ambition.

• Begin to proactively uncover user pain points through user interviews, journey mapping, competitor analysis, focus groups and data analysis.

• You will also play a part in mentoring other developers including more junior colleagues to impart knowledge and build their skills.

• Write high quality documentation and implement user & system metrics and observability as you go to continually learn, assess and improve 9fin’s platforms and products.

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 within our stack.

• A highly analytical technologist, who prioritises user experience and is experienced in translating user needs into software improvements.

• Are someone who has a product mindset, and would love the chance to work with the rest of the team to collectively make product decisions and build a product that solves user needs and create a product they love having as part of their workflow.

• 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.

• You know how to use use user data and metrics extensively to measure the success of new software changes and functionality against team KPIs as well as identify and prioritise impactful outcomes.

• 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 identified tech debt and developer experience improvements and champions frontend 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.

Our 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.

Financial & Insurance

• Competitive Salary(our salary bands are benchmarked at the top end of the market)

• Pension (your minimum contributions are 4% with 9fin matching up to 7%)

• Private Medical Insurance & Dental 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

• Bi-annual engineering hackathons

• Summer and Winter company social events

• Travel & accommodation budget for social attendance if living far from London

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.