Senior Platform Engineer — API & Data

ParrotPal Ltd.; United Kingdom; Remote; GBP 90,000 - 120,000; Full time

Job summary

ParrotPal Ltd. in the United Kingdom is seeking a senior backend/platform engineer who has shipped a commercial API under compliance constraints. You enjoy small teams, big surface area and your name on the architecture.

In this role you will scale what’s working into the infrastructure the industry relies on — with real ownership and your name on the architecture.

Interviews are with the founder; if it’s a fit, you’ll know within two conversations.

Responsibilities

• Evolve the LeanShield Score API — auth, versioning, webhooks, sandbox, docs
• Own multi-tenant dashboard infrastructure for clinics, gyms, employers and insurers
• Build the data pipeline: apps → warehouse → score service
• Drive security posture — pen-test remediation, Cyber Essentials Plus, ISO 27001

Job description

Why this seat exists

The API is the product. Heracles clinicians already see live LeanShield scores through it, and gyms, employers and insurers are queueing for their dashboards. Your job is to scale what's working into the infrastructure an industry builds on — and to be the engineer whose name is on the architecture.

What you'll own

• Evolve the LeanShield Score API — auth, versioning, webhooks, sandbox, docs
• Own multi-tenant dashboard infrastructure for clinics, gyms, employers and insurers
• Build the data pipeline: apps → warehouse → score service
• Drive security posture — pen-test remediation, Cyber Essentials Plus, ISO 27001

You

Senior backend/platform engineer who has shipped a commercial API under compliance constraints — fintech or healthtech ideal. You like small teams, big surface area and your name on the architecture.

Why ParrotPal, why now

• 1,000,000+ users across two award-winning consumer apps — the data engine is live, not a pitch
• Named partners: Heracles running LeanShield in clinic; HYVE, one of Wales' largest independent gyms, signed as founding gym
• Cambridge science: built with the guidance of Prof Nick Wareham; an RCT in design that could prove us wrong — that's the point
• The moment: GLP-1s made muscle the question of the decade in health. We're the answer the market is circling
• Founding terms: small team, real ownership, decisions that ship the week you make them

Interviews are with the founder. No six-round gauntlets — if it's a fit, you'll know within two conversations.