Lead Data Engineer

Some key info for you about Liberis:

We were founded in 2007

We have provided over $3bn of funding to small businesses so far

We have been named in CNBC & Statista Top 150 UK Fintechs for 2025

We’re a global team, with a dynamic presence in 6 key locations around the world

We’re a thriving community of over 290 innovative minds

We’re a vibrant melting pot, celebrating over 27 nationalities in our team

Our team brings experience from over 740 previous companies, from startups to global giants

We have just been named as one of FinTech's Finest 50 by Welcome to the Jungle

We’re proud to be an accredited Real Living Wage employer, ensuring everyone is paid fairly for the great work they do!

Our Product & Engineering Team:

Liberis is building the embedded finance platform that lets partners around the world offer innovative funding products to their small business customers. We’re a growth‑stage fintech with teams in London, Nottingham, Atlanta, Stockholm, Munich and Mumbai, and we’re building a global Product, Data & Engineering team that thrives on autonomy, ownership, and is focused on impact! Our teams solve real‑world problems for small businesses, shaping products that unlock opportunity at scale.

Engineering is going through an AI‑first transformation, rethinking how teams are structured and how they ship. It’s changing what a small team can do! We empower our teams to make decisions, move fast, and take full responsibility for the solutions they deliver. You’ll join a team where curiosity is encouraged and collaboration across Product, Data, Delivery and Engineering is the norm.

About our Data & Insights Team:

We exist to build the data platforms and analytics that enable every decision at Liberis to be data‑informed-and increasingly, to power AI and ML capabilities across the company!

We’re building composable, reliable data platforms that scale‑from ingesting partner transaction data and event streams, to powering analytics dashboards, to feeding ML models with real‑time features. We’re also supporting the AI/ML platform team with reliable, low‑latency feature pipelines and model serving infrastructure.

We’re collaborative, pragmatic, and we value moving fast by fixing the right problems‑not over‑engineering, but building to last!

The team is made up of three functions:

• Data Platform Engineering: Building and scaling ELT pipelines, managing data infrastructure on GCP, and creating the foundation for analytics and ML feature stores. You’ll be part of a small, high‑performing team of platform engineers focused on reliability, scale, and developer velocity.
• Analytics Engineering: Transform raw data into trusted models using DBT and SQL, powering self‑serve analytics and business intelligence for stakeholders across the company.
• Data & Business Intelligence : Build dashboards, partner‑facing reports, and insights that drive business decisions and revenue outcomes.

What you’ll get to do in the role:

• Design, build, and maintain resilient data pipelines that ingest data from Azure SQL, SaaS platforms, and event streams into BigQuery.
• Write Python code using DLT to define declarative, testable, version‑controlled pipelines – no low‑code tools, real engineering.
• Build and operate ML feature pipelines – low‑latency, real‑time data streams that feed ML models with accurate, fresh features.
• Own the operational health of systems you build – monitoring, alerting, error handling, and incident response. When the data pipeline goes down, merchant credit decisions and ML model predictions suffer.
• Collaborate with analytics engineers to understand data needs, validate schema design, and establish data quality standards that both analytics and ML rely on.
• Partner with the AI/ML platform team to design feature stores, streaming feature infrastructure, and model serving pipelines that power Liberis’ decisioning engine.
• Identify and execute optimisation work – improving performance, reliability, and developer velocity without rearchitecting stable systems.
• Mentor junior engineers, helping them grow as engineers and supporting their career development.
• Participate in technical decisions about platform direction – infrastructure choices, tooling, architecture trade‑offs.
• Work cross‑functionally with product teams, analytics engineers, BI specialists, and the ML platform team to shape data requirements and platform capabilities.

What we think you’ll need:

• Proven experience within data engineering roles – building and operating data pipelines at scale
• Hands‑on experience building Modern Data Stack architectures – you understand the layers: ingestion, warehouse, transformation, orchestration, reverse ETL. You’ve worked with tools like DLT/Fivetran/Airbyte (ingestion), BigQuery/Snowflake/Redshift (warehouse), DBT (transformation), Airflow/similar (orchestration).
• Strong Python programming – you wri