Principal Platform Engineer — AI, Video & Scale

SundaySky; York and North Yorkshire; On-site; GBP 110,000 - 150,000; Full time

Job summary

SundaySky seeks a Principal Engineer to provide hands‑on technical leadership across its product and platform. This senior IC will turn ambiguous goals into durable architecture, lead cross-platform initiatives, and improve how engineering designs and delivers software.

You will stay close to code while guiding video creation, personalization, rendering, data, AI, distribution, and platform services that support them, shaping scalable, secure systems for a multi-tenant SaaS platform.

Qualifications

• Approximately 12+ years in professional software development with SaaS leadership.
• Experience leading architecture across multi-team environments.
• Strong product thinking and ability to communicate complex decisions.

Responsibilities

• Define and evolve the technical architecture for SundaySky’s multi-tenant SaaS platform.
• Lead architecture and implementation across teams without formal reporting lines.
• Prototype critical paths, review high-impact changes, and resolve hard engineering problems.

Skills

Full-stack expertise

Distributed systems

Architecture leadership

React frontend

Node.js/Python/Java/C#

AWS / cloud

CI/CD / DevOps

Technical mentorship

Job description

SundaySky seeks a Principal Engineer to provide hands‑on technical leadership across its product and platform. This senior IC will turn ambiguous goals into durable architecture, lead cross-platform initiatives, and improve how engineering designs and delivers software.

You will stay close to code while guiding video creation, personalization, rendering, data, AI, distribution, and platform services that support them, shaping scalable, secure systems for a multi-tenant SaaS platform.