Senior Chief Platform Architect - 801

Quantinuum; Greater London; On-site; GBP 150,000 - 250,000; Full time

Benefits offered by this job

Competitive compensation

Flexible work arrangements

Employer-subsidized medical, dental, &

Vision insurance

401(k) with company match

Equity opportunities

Generous PTO and holidays

Paid parental leave

Employee discounts

Job summary

Quantinuum seeks a Chief Platform Architect to lead the design of the Quantum Software Developer Platform, including access portals for quantum computers, hybrid workflow orchestration, tooling access, documentation, and security. You will guide cloud-native solutions, multi-region architecture, and a scalable portal framework while mentoring senior engineers and shaping the technical roadmap.

You will foster best practices, drive architectural reviews, and collaborate with business teams to

Qualifications

• 25+ years in software engineering, with at least 5+ years in a senior architect or lead role, specifically within developer platforms.
• Experience designing developer platforms and platform engineering teams.
• Excellent communication and ability to influence across technical and non-technical stakeholders.

Responsibilities

• Own the design and specifications of a high-performance developer platform.
• Refine quantum computer access API and web portal architecture for performance and scalability.
• Transform web portal into an application development framework using a cloud-based hybrid workflow engine.
• Define standard interfaces for hosting components for internal and external developers.
• Ensure security and reliability as the platform scales.
• Deliver cloud-based hybrid applications to end users.
• Define technology roadmap aligned with business goals and evaluate new technologies.
• Mentor senior engineers and establish best coding practices.

Skills

Cloud platforms

CI/CD design

Backstage

Observability tools

Large-scale systems

Leadership

Education

Bachelor's in CS/Engineering

Masters/PhD preferred

Tools

Backstage

Cloud platforms (AWS/Azure/GCP)

Job description

We are seeking an Chief Platform Architect in our CO, MN, or UK locations.

As the Chief Platform Architect for the Quantum Software Developer Platform, you will act as the technical authority for the design of Quantinuum's developer platform: access portals for quantum computers, hybrid work‑flow orchestration, tooling access, documentation, and security. You will work with other leaders on hardware‑software co‑design efforts, ensuring our platform is scalable and enabling of our quantum processors. You will mentor senior engineers, ensure excellent coding standards, and help define and execute on the technical roadmap to translate business needs into robust, production‑ready systems.

Key Responsibilities:

• Own the design and specifications of a high-performance developer platform.
• Refine quantum computer access API and web portal architecture for performance, scalability and multi‑region operation
• Transform web portal into an application development and delivery framework by leveraging cloud‑based hybrid workflow engine and reusable quantum/classical application components
• Define standard interfaces for hosting application components and building applications by both internal and external developers
• Ensure the security and reliability of the platform as it scales up
• Deliver customizable cloud‑based hybrid applications to end users
• Work across the business to help define and maintain the technology roadmap, translating business goals into technical requirements and evaluating new technologies.
• Foster a culture of excellence by establishing best coding practices, performing architectural reviews, and mentoring senior software engineers.

YOU MUST HAVE:

• 25+ years in software engineering, with at least 5+ years in a senior architect or lead role, specifically within developer platforms.

WE VALUE:

• Deep knowledge of cloud platforms (AWS, Azure, or GCP) and cloud‑native solutions.
• Expertise in CI/CD pipeline design, developer portals (e.g., Backstage), and observability tools.
• Demonstrated success in designing large‑scale software systems
• Proven ability to lead architectural work for large‑scale projects and influence teams without direct authority.
• Excellent communication skills, with the ability to explain complex technical concepts to both technical and non‑technical stakeholders.
• Bachelor's degree in Computer Science, Engineering, or a related field; Master's or PhD preferred.

Preferred Qualifications

• Prior experience in the design and architecture of developer platforms
• Experience in building platform engineering teams from the ground up.
• Background in Site Reliability Engineering (SRE).
• Record of publication or patents in quantum computing.

Quantinuum is a leading quantum computing company delivering a full stack platform designed to make quantum computing deployable in real‑world environments. With active engagements spanning pharmaceuticals, material science, financial services, government, industrial sectors, and leading academic and research institutions worldwide, we are helping organizations unlock the transformative potential of quantum computing.

Our global team of more than 800 employees includes many of the world's leading scientists, engineers, and researchers, with more than 70% of our technology team holding advanced degrees at the Master's or PhD level. Headquartered in Broomfield, Colorado, Quantinuum operates across the United States, United Kingdom, Germany, Japan, and Singapore.

By joining Quantinuum, you'll help shape the future of quantum computing, pushing the limits of technology, and making the impossible possible.

What's in it for you?

• Competitive compensation and the opportunity to work on groundbreaking technology
• Flexible work arrangements that support work‑life balance
• Employer‑subsidized medical, dental, and vision insurance
• 401(k) retirement savings plan with company match and student loan repayment benefit
• Equity opportunities
• Generous paid time off, sick leave, and 12 paid holidays annually
• Paid parental leave
• Employee discount programs

Equal Opportunity Employer

Quantinuum is proud to be an equal opportunity employer.

We are committed to building an inclusive workplace where all employees and applicants are treated with respect and provided equal opportunities regardless of race, color, religion, sex, sexual orientation, gender identity or expression, national origin, age, disability, veteran status, ancestry, marital status, or any other characteristic protected by applicable law.

Know Your Rights

Workplace discrimination is illegal.

For more information about Quantinuum, please visit our website .

We are committed to making our recruitment process accessible to all. If you require any reasonable adjustments at any st