Top Tech Jobs & Startup Jobs in Belfast

As a Staff Backend Engineer, you will collaborate across teams to build and improve backend systems using various technologies, focusing on customer-centric solutions and resilient software.

The Senior Staff Backend Engineer will lead technical direction for systems, manage engineering standards, mentor teams, and ensure alignment with broader company goals. Responsibilities include hands-on coding, architecture, and partnership with product teams to maximize impact.

Build and operate ML platform systems that enable teams to train, evaluate, deploy and serve models. Work on backend services, Python libraries, model lifecycle tooling, evaluation workflows and low‑latency serving using Go/Python, Kubernetes and cloud infrastructure, prioritizing reliability, observability, safety and developer experience.

Lead credit strategy for Monzo's credit card products: design underwriting and limit strategies, analyse portfolio performance and profitability (NPV), build segmentation and forecasting, run deep-dive analyses, partner with Product/Engineering/Data Science, evaluate commercial/customer impacts, present recommendations to senior stakeholders, and ensure regulatory and governance alignment.

Design and optimise downstream data models in BigQuery to support reporting, ML, financial and regulatory use cases. Build and maintain scalable ETL pipelines, define data modelling and testing standards, improve warehouse performance and data quality, collaborate cross-functionally, own pipelines and provide occasional on-call support.

The Engineering Manager at Monzo will lead and develop autonomous teams, focusing on technical excellence, delivery outcomes, and fostering an inclusive environment for engineers, collaborating closely with Product Managers.

Lead Monzo's Fraud & Disputes Risk team to design and embed prevention-first fraud controls across products. Build cross-functional partnerships with Product, Engineering, Data and Operations, develop innovative fraud strategies using modern technology, mentor teams, monitor emerging fraud trends, and influence senior stakeholders to protect customers.

As a Senior Backend Engineer, you will collaborate with cross-functional teams to build resilient software and support various banking operations using technologies like Go and Kubernetes.

Lead Analytics Engineer to architect and scale Operations data in BigQuery, build robust ETL and data models for reporting, ML and LLM use, drive re-architecture of domains, set DW best practices, own data governance and testing, lead through others, and provide on-call pipeline support.

The Pricing Analyst will optimize insurance pricing through data analysis, experimentation, and collaboration, improving growth and profitability while managing day-to-day pricing performance.