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Senior Product Engineer

Job in Belfast, County Antrim, BT1, Northern Ireland, UK
Listing for: 9fin
Full Time position
Listed on 2026-02-16
Job specializations:
  • IT/Tech
    UI/UX Design, Data Analyst
Job Description & How to Apply Below

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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.

The Onboarding & Activation team is 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.

What you’ll work on

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

  • Use your technical skills to lead projects that solve real customer problems that yourself and your team find on our customer facing platforms and onboarding flow and to improve key metrics for the team in a fast iterative way.
  • Collaborate with product managers & UX designers to discover user pain points through user interviews, journey mapping, competitor analysis, focus groups and data analysis.
  • Release code into production 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.
  • Share and contribute to the product vision to focus on allowing 9fin’s platform to scale with our company ambition.
  • Run multiple experiments on different parts of our onboarding funnel to validate hypotheses of how the changes will impact conversion and product engagement rates.
  • Take on the technical leadership to plan, design and build new functionality and systems by creating quick proof of concepts to get fast and actionable feedback.
  • 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.
  • React via Typescript & Vite
  • Jest, React Testing Library, Playwright
  • Production workloads on AWS using ECS & lambda serverless functions & event based architectures.
  • Typed Python for APIs & Data.
  • Flask & FastAPI

About You

This role will be a great fit if you:

  • Are someone who has a product mindset and loves sharing ownership of our client facing product 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.
  • You excel at transforming product designs into functional and beautiful user interfaces, driven by a passion for creating delightful customer experiences.
  • A highly analytical technologist, who prioritises user experience and is experienced in translating user needs into software improvements.
  • 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…
Position Requirements
10+ Years work experience
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