Principal IS Engineer

Salary: £60,000 - 100,000 per year

Requirements

• We need clear technical leadership and guidance across architecture, design standards and implementation.
• We need experience leading high-level solution design and building scalable, modern services using best-in-class patterns.
• We need strong architectural and engineering judgment, with the ability to set direction while staying hands-on.
• We need experience mentoring and developing engineers and aligning technical direction with business goals.
• We need the ability to collaborate effectively across product, engineering and business teams.
• We need strong problem-solving skills with data-driven thinking and objective reasoning.
• We need excellent communication skills, with the ability to translate technical detail into clear business value and influence stakeholders at all levels.
• We need experience thriving in a fast-paced, evolving environment and navigating ambiguity with confidence.
• We value experience designing, integrating and operating AI-enabled solutions within enterprise environments.
• We value experience with prompt-driven workflows, retrieval-augmented systems and AI agents.
• We value experience applying structured evaluation, testing and monitoring to ensure AI outputs are reliable, secure and compliant.
• We value experience preparing and managing data used in AI workflows and supporting the responsible lifecycle of AI features from experimentation through deployment and continuous improvement.

Responsibilities

• We define and drive the technical vision, aligning engineering direction with business goals and shaping product and technology roadmaps.
• We champion best engineering practices and foster a collaborative culture while raising technical standards across teams.
• We design and evolve scalable, high-performance architectures for complex, enterprise-level systems.
• We mentor and guide engineers while remaining hands-on through coding, code reviews and technical leadership.
• We partner with product, design and business stakeholders to deliver high-quality, customer-focused outcomes.
• We ensure reliability, security and continuous improvement.
• We translate complex technical concepts into clear business value.
• We lead the design of AI-enabled solutions and help ensure they are robust, secure and compliant.

Technologies

• AI
• Support
• Security

More

We are Centrica, a family of brands revolutionising how we power the planet. We are an energising team of 21,000 colleagues working toward a greener, fairer future by creating an energy system that does not rely on fossil fuels. This is a UK-based hybrid role with occasional travel to site. We offer a generous market salary, car allowance, a 15% Employee Energy Allowance, comprehensive pension, fully funded company healthcare, 25 days of holiday plus public holidays, the option to buy up to 5 extra days, and a wide range of flexible benefits. We are a people place focused on supporting different realities, with flexibility designed to support our people and their families financially, physically and emotionally.

last updated 29 week of 2026