Platform Engineer
Harnham is looking for a Platform Engineer
Job description
PLATFORM ENGINEER
LONDON
UP TO £140,000 + EQUITY
THE COMPANY
This stealth-mode startup is building a revolutionary trading platform focused on a niche yet rapidly growing market with little price transparency. Backed by £6M in VC funding, they aim to bring efficiency and clarity to this specific trading, helping investors understand pricing, profitability, and market opportunities. With a cutting-edge, data-driven twist and with a founding team from MIT, CalTech, Harvard, Meta, and top-tier finance, this is your chance to join from the starts and shape the future of a high-impact fintech platform.
THE ROLE
As a Platform Engineer, you’ll play a pivotal role in building the trading platform’s front-end architecture from the ground up. You’ll work alongside the founders and a trading specialist to create a scalable, cloud-native platform. This role is for someone who thrives in regulated environments, has experience in financial systems, and wants to bring their expertise to a high-growth, stealth-mode startup.
Specifically, you can expect to be involved in the following:
- Technical tasks: Designing and implementing cloud-based trading infrastructure.
- Collaboration: Working closely with the team to integrate AI/ML-driven insights and ensure the platform is secure, scalable, and user-friendly.
- Innovation: Helping to define the technical roadmap and build a product that sets the standard for this niche trading.
SKILLS AND EXPERIENCE
The successful Platform Engineer will have the following skills and experience:
- 6+ years of experience
- Experience in platform engineering for in trading systems
- Proven track record in building trading systems or regulated financial platforms.
- Strong Python skills
- Experience with GCP (preferred), Kubernetes, Terraform, PostgreSQL, React, and TypeScript.
- Exposure to AI/ML is a massive plus as you’ll be working alongside a team that leverages data science to drive trading insights.
- Entrepreneurial mindset: Someone who has transitioned from established companies to start ups and is eager to take on a new challenge.
BENEFITS
The successful Platform Engineer will receive the following benefits:
- Up to £140,000 salary + equity — become a key stakeholder in a high-potential start up.
- Hybrid in the London office.
- The opportunity to build a platform from scratch in a niche, high-growth market.
- A collaborative, intellectually stimulating environment with brilliant founders.
- High impact: Your work will set the foundations of the platform and attract further investment.
HOW TO APPLY
Please register your interest by sending your resume/CV to Joana Alves via the Apply link on this page.
Extra information
- Status
- Open
- Education Level
- Secondary School
- Location
- London Area
- Type of Contract
- Full-time jobs
- Published at
- 01-02-2026
- Profession type
- Accountancy
- Full UK/EU driving license preferred
- No
- Car Preferred
- No
- Must be eligible to work in the EU
- No
- Cover Letter Required
- No
- Languages
- English
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