Billing & Usage Systems Engineer

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

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.