Engineering Billing/Metering Engineer EvaEsi · Full-time · United Kingdom Posted 11 July 2026 V[...]

Forlais Group Ltd; United Kingdom; On-site; GBP 70,000 - 110,000; Full time

Job summary

EvaEsi in the United Kingdom is seeking a Billing/Metering Engineer to run billing and usage metering across subscriptions, usage tracking and the developer API. You will design and implement correctness around retries, races, partial failures and disconnects; collaborate with Stripe or comparable payment systems and build the ledger paths customers and the company can trust.

This role offers a chance to influence pricing infrastructure and ensure reliable revenue operations at scale.

Qualifications

• Experience building or running payments, metering or ledger systems in production.
• Strong focus on billing correctness and reliability.
• Ability to reason about invariants and failure modes.
• Willingness to learn and adapt to new ideas.
• Results-oriented with ownership of outcomes.

Responsibilities

• Run billing and usage metering across EvaEsi's subscription and API surfaces.
• Design and implement correctness around retries, races, partial failures and disconnects.
• Work with Stripe or comparable payment systems, webhooks and reconciliation.
• Build the ledger and metering paths customers and the company can trust.
• Work with platform, finance and compliance before real money flows at scale.

Skills

Billing correctness

Payment systems

Failure mode analysis

Adaptability

Ownership & accountability

Tools

Stripe integration

Postgres transactions

Rust

Webhooks

Ledger design

Job description

# Billing/Metering EngineerRun billing and usage metering across subscriptions, usage tracking and the developer API.All open rolesApplyAbout the role## What this role does.EvaEsi is a whole new model line, built on the research from Forlais. It is a significant launch, and you can help shape it.You will run billing and usage metering across the platform, covering subscriptions, usage tracking and the developer API. Billing has to be right every time, for the customer and for us, and making sure it is will be your job.What we look for## Qualifications.* Treat billing correctness as a serious engineering discipline, not plumbing.* Have built or run payment, metering or ledger systems in production.* Think in invariants and failure modes.* Bring an open mind and genuine readiness for a learning curve.* Are results oriented and comfortable taking responsibility for outcomes.* Are willing to adapt and try new ideas.Bonus## Nice to have.* Stripe or comparable payment platforms, including webhooks, disputes and reconciliation.* Transactional design in Postgres.* Rust or another systems language.* Usage-based or credit-based pricing systems.Process## How the process runs.Each application is reviewed directly. Expect one or more conversations covering judgement, technical or craft depth, and the responsibility the role carries. EvaEsi does not publish salary ranges in public material; compensation is discussed individually during the process.Team: EvaEsi Revenue SystemsType: Full-timeLocation: United KingdomDiscipline: EngineeringWhat you will do* Run billing and usage metering across EvaEsi's subscription and API surfaces.* Design and implement correctness around retries, races, partial failures and disconnects.* Work with Stripe or comparable payment systems, webhooks and reconciliation.* Build the ledger and metering paths customers and the company can trust.* Work with platform, finance and compliance before real money flows at scale.