Platform Engineer

Harnham - Data and Analytics Recruitment; Greater London; Hybrid; GBP 130,000 - 180,000; Full time

Benefits offered by this job

Equity participation

Pension scheme

Hybrid working model

Opportunity to work directly with the

Job summary

Harnham - Data and Analytics Recruitment in London is seeking a Platform Engineer to own core platform engineering on cloud infrastructure, delivering scalable systems with substantial autonomy and technical influence. You will work closely with the founding team to shape the product and deployment strategy.

The role offers hybrid working from London, significant ownership, and the chance to contribute to a fast-growing AI infrastructure product with equity potential.

Qualifications

• Strong experience building and operating platforms in production environments.
• Background in distributed systems and cloud infrastructure.
• Experience with Python and backend development.
• Familiarity with containerisation, infrastructure as code and modern deployment practices.
• Commercial mindset with ownership and curiosity.
• Experience in early-stage or scaling environments.
• Ideally 5-12 years' experience.
• STEM or Computer Science background preferred.

Responsibilities

• Design, build and maintain a core platform running on cloud-based infrastructure.
• Develop and improve deployment processes to ensure scalability and reliability.
• Build and manage services operating within distributed systems.
• Contribute to backend development using Python and relational databases.
• Work closely with the founding team to solve complex technical challenges and influence the product roadmap.

Skills

Distributed systems

Cloud infrastructure

Python

Backend development

Containers

Infrastructure as code

Early-stage experience

STEM/CS background

Education

STEM / Computer Science background

Job description

PLATFORM ENGINEER
£150,000

LONDON

This is a rare opportunity to join a high-calibre, early-stage technology business operating at the heart of the AI infrastructure ecosystem. You'll take ownership of core platform engineering, working closely with the founding team to build scalable systems that underpin a fast-growing, mission-critical product. The role offers significant autonomy, technical influence and long-term upside.

THE COMPANY

Our client is a fast-growing technology and research business focused on the infrastructure that powers modern AI systems. They work with sophisticated clients to provide deep insight into markets such as compute, cloud platforms and distributed systems. Having recently raised significant funding and preparing for further growth, the business is now investing heavily in its engineering capability.

This role has been created as part of that growth, offering the chance to help shape the technical foundations of a business operating in a rapidly expanding and highly relevant space.

THE ROLE

• Design, build and maintain a core platform running on cloud-based infrastructure
• Develop and improve deployment processes to ensure scalability and reliability
• Build and manage services operating within distributed systems
• Contribute to backend development using Python and relational databases
• Work closely with the founding team to solve complex technical challenges and influence the product roadmap

This role is exciting because it offers genuine founding-level impact, with the opportunity to shape how the platform is built, deployed and scaled from an early stage.

YOUR SKILLS AND EXPERIENCE

• Strong experience building and operating platforms in production environments
• Background in distributed systems and cloud infrastructure
• Experience with Python and backend development
• Familiarity with containerisation, infrastructure as code and modern deployment practices
• Commercial mindset with strong ownership and curiosity
• Experience in early-stage or scaling environments
• Ideally 5-12 years' experience
• STEM or Computer Science background preferred

SALARY AND BENEFITS

• £150,000 base salary
• Equity participation (details dependent on experience)
• Pension scheme
• Hybrid working model (London-based)
• Opportunity to work directly with founders