Jobs at Primer (UK)

Own the full lifecycle of machine learning features, including research, experimentation, training, deployment, monitoring, and production optimization. Build ML infrastructure for payment routing, establish reliable MLOps practices, partner with product, data, engineering, and customers, mentor engineers, and guide technical priorities. Apply statistical thinking, A/B testing, pragmatic model evaluation, and reinforcement learning concepts in a remote-first environment.

Own the full lifecycle of machine learning features, including research, experimentation, training, deployment, monitoring, and production infrastructure. Build smart payment-routing models and MLOps practices, partner with product, data, engineering, and customers, evaluate outcomes statistically, mentor engineers, and help define ML technical direction and reliable development processes.

Manage and coach a distributed team of Support Engineers operating 24/7. Co-own support KPIs, quality, processes, triage, escalations, incidents, and post-mortems. Remain technically hands-on by troubleshooting APIs, SDKs, and logs. Partner with Product and Engineering leadership, communicate performance, identify training needs, and improve operational excellence across customer support.

Own partner marketing initiatives for Primer’s payments platform, including product positioning, value propositions, messaging, campaigns, launch assets, enablement materials, and performance reporting. Collaborate with Product, Sales, Marketing, and partner teams to communicate technical product benefits to buyers and partners. Analyze market insights and customer personas, adapt content across channels, and help build scalable marketing processes in a remote, fast-changing SaaS environment.

Own end-to-end product marketing for Primer’s Partners team, including go-to-market launches, audience definition, messaging, positioning, competitive and buyer research, and partner and merchant feedback synthesis. Translate technical payment products into compelling buyer messaging, collaborate with Product, Sales, and Marketing teams, and monitor initiative performance to optimize strategy. The role requires hands-on execution, strong project management, creativity, experimentation, and independent ownership in a fast-paced remote environment.

Own and improve Primer's GTM intelligence: maintain dashboards and semantic models, train BI/LLM models (Omni/Claude), surface pipeline/account signals, ensure correct Salesforce modeling, build revenue-driving models and GTM AI workflows, partner with data engineering and RevOps, drive adoption, and promote self-serve data literacy.

Lead front-end technical strategy across multiple teams for a complex, data-dense merchant platform. Own architecture, component systems, state management, performance, accessibility, and front-end observability. Mentor engineers, drive cross-team alignment, and partner with Product, Design, and backend engineers to deliver a cohesive merchant experience including the Primer AI Companion.

As a Junior Solutions Engineer at Primer, you will consult with merchants to solve their pain points, leverage technical skills in API integrations, lead discovery sessions, and collaborate with teams to enhance products.

Design, build, and maintain scalable batch and streaming data pipelines, internal tools, and APIs to support analytics, product features, and ML. Collaborate with product and engineering to improve data infrastructure, ensure reliability, testing, and observability in a cloud-native environment.