Senior Product Manager, API Data Platform (B2B)

Jackalope Digital LLC; Greater London; Hybrid; GBP 90,000 - 135,000; Full time

Benefits offered by this job

Hybrid work model

Pension with 7% company matching

Private medical insurance

Season ticket and cycle-to-work

Job summary

9fin is seeking a seasoned product leader to define API-first data distribution strategies and data products for external consumers. You will shape packaging, pricing, and go-to-market with a cross-functional team, partnering with Sales, Legal, and engineering to deliver scalable, enterprise-ready data offerings.

This role requires strong collaboration across product, data, and GTM functions and a drive to build end-to-end data products.

Qualifications

• 5+ years of product management experience, with at least 2 years building API products, data platforms, or data distribution products at a B2B company.
• Experience designing APIs for external consumers: you have opinions on schema design, versioning strategies, rate limiting, and what makes developer documentation actually useful.
• Track record of shipping data products where you managed the full lifecycle: from defining what data to expose, through schema design, to commercial packaging and client onboarding.
• Understanding of data infrastructure concepts: data pipelines, warehouses, ETL/ELT, data modelling, and platforms like Snowflake.
• Comfortable with SQL and Python and capable of interrogating data to validate quality, understand usage patterns, and inform product decisions.
• Experience working in a solution-selling or partner-led GTM model: you have been involved in POCs, pilots, or co-development with enterprise clients, not just self-serve product launches.
• Proven ability to lead cross-functionally without a dedicated team: you coordinate across engineering, data, and commercial functions through influence, not authority.
• Strong commercial instinct: you understand how enterprise data buyers evaluate providers, and you can shape a product that competes on data quality, coverage, and ease of integration.
• Clear communicator who can translate between technical and commercial audiences

Responsibilities

• Define the product vision and strategy for external data distribution: APIs, data shares, and future delivery mechanisms (cloud sync, pub/sub).
• Own the data catalogue decisions: which datasets to expose, in what format, through which channels, and in what order, balancing client demand, data readiness, and commercial potential
• Design the developer experience end-to-end: API design, documentation, developer portal, sandbox/playground, error handling, rate limiting, and versioning
• Work with analytics engineering and domain teams to define schemas, data models, and transformation logic that make 9fin's data consumable and valuable outside the application
• Use a partner model to validate early: select and work closely with 1-2 clients during development to co-develop and prove out each data product before broader launch
• Shape the commercial model for API products: packaging, tiering, usage-based pricing, distribution controls, and entitlement structures that capture the value of programmatic data access
• Coordinate across platform engineering, analytics engineering, domain squads, and the Head of Analytics to align priorities and ship a cohesive product without a dedicated squad

Skills

APIs for external consumers

Data platforms

SQL

Python

Cross-functional leadership

Solution-selling GTM

Tools

Snowflake

Job description

9fin is seeking a seasoned product leader to define API-first data distribution strategies and data products for external consumers. You will shape packaging, pricing, and go-to-market with a cross-functional team, partnering with Sales, Legal, and engineering to deliver scalable, enterprise-ready data offerings.

This role requires strong collaboration across product, data, and GTM functions and a drive to build end-to-end data products.