Head of Technology

Who are OnBuy?

OnBuy are an online marketplace who are on a mission of being the best choice for every customer, everywhere.

We have recently been named one of the UK's fastest-growing tech companies in the Sunday Times 100 Tech list.

All achievements we are very proud of, but we don't let that go to our head. We are all laser focused on our mission and understand the huge joint effort ahead of us needed to succeed.

Working at OnBuy:

We are a team of driven and motivated people who thrive when working at pace. To succeed at OnBuy you need to take charge and fully own your responsibilities, rolling your sleeves up when needed to 'get it done'. Working at OnBuy you are surrounded by so much opportunity, but you must possess the ability to stay focused and prioritise ruthlessly. Most importantly, you will thrive in an ever-changing environment as we are constantly evolving.

At OnBuy, you're not just a number or another cog in a machine. We are creating something really special, and you have the opportunity to affect meaningful change and have your voice heard. We are a close team, who have the opportunity to learn and grow as OnBuy evolves.

About the Role
Are you ready to lead technology transformation at scale?

We’re looking for a Head of Technology to set the strategic direction and reset our tech organisation for global marketplace growth. This is a hands-on leadership role with a clear mandate: build a high-performing team, deliver a secure and scalable platform, and drive measurable impact as we scale beyond £1B GMV.

What You’ll Be Responsible For:

• Shape Strategy & Architecture: Define long-term tech strategy, global architecture roadmap, and technical standards.
• Drive Commercial Impact: Align technology decisions to GMV, conversion, and customer experience.
• Lead Transformation: Reset structure, processes, and operating rhythms for speed, quality, and resilience.
• Performance Management and Delivery Excellence: Set performance expecations, improve predictability, engineering discipline, and output quality.
• Build Talent & Culture: Develop senior leaders, attract top talent, and create a culture of clarity and accountability.
• Own Financials & Vendors: Manage budgets, optimise cloud spend, and streamline vendor contracts.
• Strengthen Security: Embed security by design, lead risk management, and ensure compliance across regions.

Requirements

Experience & Skills

• Proven leadership in high-scale, mobile-first digital environments.

• Strong architecture and systems design expertise.
• Track record of transforming teams and improving delivery performance.
• Commercially sharp, calm under pressure, and able to simplify complexity.

Benefits

The salary on offer for this role is between £120,000 and £140,000 depending on experience.

We also offer the following benefits:

• Company Equity- In return for helping us to grow, we’ll offer you company equity, meaning you own a piece of this business we are all working so hard to build.
• 25 days annual leave + Bank Holidays
• 1 extra day off for your Birthday
• Employee Assistance Programme
• Perks at Work benefit platform
• Opportunities for career development and progression

Our Commitment

OnBuy is an equal opportunities employer. We are dedicated to creating a fair and transparent workforce, starting with a recruitment process that does not discriminate on the basis of gender, sexual orientation, marital or civil partnership status, pregnancy or maternity, gender reassignment, race, colour, nationality, ethnic or national origin, religion or belief, disability, or age.