Senior Platform Product Manager

Semble; United States; Remote; USD 90,000 - 110,000; Full time

Benefits offered by this job

Private health insurance

MacBook and home-office gear

Flexible work environment

Job summary

Semble is seeking a Senior Platform Product Manager to co‑own the platform strategy and roadmap with the Head of Platform. You will guide internal engineering teams as customers and lead the push into agentic development built on the shared platform foundation.

You will define requirements for governance guardrails, evaluate agent tasks, and partner with engineering on reliability, performance, and security. Strong communication is essential.

Qualifications

• 5+ years in product management, with meaningful time on platform or backend/API products.
• Technical fluency to discuss distributed systems and architecture trade-offs.
• Proven track record owning a platform or internal tool end-to-end.
• Experience shipping agentic workflows into production.
• Ability to connect platform work to business value and team outcomes.

Responsibilities

• Co-own the platform strategy and roadmap with Head of Platform.
• Prioritise investments based on adoption impact, risk, and effort; make trade-offs explicit.

Skills

Platform strategy

Internal tools

Agentic development

Trade-off reasoning

User research

Non-functional requirements

Metrics & adoption tracking

Cross-functional collaboration

Tools

APIs

Security & observability

Job description

Semble is a UK-based health technology company on a mission to help health professionals amplify their impact. Its cloud-based clinical system is used by thousands of clinicians, making their day-to-day work easier, reducing costs, and structuring health data to support research. The company has offices in London and Paris and operates with a strong culture built around impact, collaboration, and human care.

The role

The Platform team exists to make the whole engineering organisation more effective, guided by the question of how to help colleagues reduce cognitive load and ship more reliably. As Senior Platform Product Manager, you would co‑own the platform strategy and roadmap with the Head of Platform, treating internal engineering teams as your customers. You would also lead the company's push into agentic development built on top of the shared platform foundation. Success is measured by how much faster and more reliably other teams can ship.

What you would do

• Co‑own the platform strategy and roadmap with the Head of Platform, defining and communicating the vision for the internal developer platform and agentic development harness.
• Prioritise investments based on adoption impact, technical risk, and engineering effort, making trade‑offs between near‑term and long‑term value explicit, and connecting platform investment to company objectives.
• Conduct user research with engineers, observing development workflows and combining qualitative feedback with usage data to identify friction, unmet needs, and opportunities for self‑service.
• Work with the engineering team to convert one‑off solutions into shared, easy‑to‑use services, establishing platform standards, interfaces, and reusable components.
• Own the capabilities that let internal teams build, deploy, and operate AI agents safely and at scale, including the evaluation framework that measures agent task completion, failure recovery, output quality, and human override rates.
• Define product requirements for agent governance guardrails, and use the evaluation framework to catch regressions before they reach other teams.
• Partner with engineering on non‑functional requirements (reliability, performance, security, observability) that make shared services trustworthy at scale.
• Define and track adoption, reliability, and developer‑experience metrics, as well as agent‑specific metrics such as time to value, task completion rate, and human override rate.

What they are looking for

Must-haves:

• 5+ years in product management, with meaningful time on platform, infrastructure, developer‑facing tooling, or backend/API products.
• Technical fluency sufficient to be credible with senior engineers, reason about distributed systems and architecture trade‑offs, and work where non‑functional requirements are the product.
• A track record of owning a platform or internal tool end‑to‑end, setting direction and shipping without someone else defining the scope.
• Experience shipping agentic workflows and tooling into production.
• Ability to connect platform work to concrete business value and team outcomes.
• Strong written and verbal communication for both technical and non‑technical audiences.
• Ownership and autonomy: you identify and drive problems without waiting for direction.

Nice‑to‑haves:

• Hands‑on ability to prototype.
• Exposure to regulated, enterprise, or security‑sensitive environments.
• Background contributing to internal developer platforms, DevEx initiatives, or open‑source ecosystems.
• Experience with API gateways, identity/access management, or service‑to‑service communication patterns.
• Experience designing agent governance capabilities such as explainability, audit trails, tool permissions, or approval/escalation workflows.
• Active practitioner of agent frameworks who follows developments in open‑source harnesses, coding agents, and orchestration tools.
• Experience in HealthTech or the healthcare industry.
• Proficiency in French.

Working arrangements

The role is fully remote within the UK or France, and must be within +/- 2 hours of the GMT time zone. Occasional travel to the London or Paris offices is expected. Candidates outside these locations and time zones cannot be considered. There is also some flexibility to work across Europe.

Pay and benefits

• From £75,000 (based on experience and the value you bring).
• 36 days off: 25 holidays, bank holidays, plus 3 extra days (birthday and \"feel good\" days).
• Private health insurance, mental health support, and free therapy sessions.
• Latest MacBook and a wide range of equipment to set up a home office ergonomically.
• Flexible work environment with the option to use offices in Central London or Paris (roof terrace, natural light, weekly events).