Our client processes serious subscription volume, and every renewal, plan change, and upgrade has to resolve into the right charge, the right credit, and the right event — every time — or a customer's order doesn't ship. You'll work in the backend of that system: subscription and renewal logic, credit ledgers, payment events, and webhook reliability.
The core stack is TypeScript (Google Cloud Functions) alongside Go services — you'll live mostly in TypeScript, and we'll teach you the Go you need. If you've built billing, checkout, or transaction systems in Node/TypeScript and sweat correctness, this role was written for you.
What You'll Do- Build the money logic — subscription lifecycle, renewals, credits, and plan-change machinery that decides what a customer owes and what happens next.
- Guard the signal — every transaction emits a payment event that gates fulfillment; you'll treat event correctness and webhook reliability as the core of the job.
- Integrate the stack — work with payment processors and orchestration APIs, handling auth/capture, refunds, retries, and edge cases cleanly.
- Test like it's load-bearing — automated coverage written alongside the code; partial credits and multi-cycle renewals have too many edge cases for manual QA.
- Close the loop when needed — comfort touching the React surfaces your APIs feed is a plus; deep frontend work isn't the job.
- Backend: TypeScript (Google Cloud Functions), Go, Temporal, Postgres
- Frontend: React, React Native (light touch)
- Infra/Observability: GCP, Datadog
- Own revenue-critical logic at real transaction volume — your work is impossible to miss.
- Small, senior team with direct access to product and leadership; no ticket-factory dynamics.
- Long-term, stable engagement through Maxana with direct integration into the client's team.
- Fully remote, LATAM-friendly hours.
Requirements
- 3+ years of backend TypeScript/Node in production — services, APIs, and async workflows, not just scripts.
- Payments or billing experience strongly preferred — subscriptions, webhooks, PSP integrations (Stripe, PayPal, Adyen, or similar), or other financial-correctness domains (ledgers, lending, e-commerce checkout).
- Postgres fluency — schema design and queries you'd defend in review.
- Willingness to learn Go — some of the platform lives in Go services; you don't need it on day one, but you need to want it.
- Testing-minded by instinct — you write the test alongside the code.
- AI-native workflow — you use AI-assisted engineering tools as part of your craft. Expected, not optional.
- Strong written and spoken English and availability on US business hours
Benefits
- Own revenue-critical logic at real transaction volume — your work is impossible to miss.
- Small, senior team with direct access to product and leadership; no ticket-factory dynamics.
- Long-term, stable engagement through Maxana with direct integration into the client's team.
- Fully remote, LATAM-friendly hours.
- Competitive pay
Skills Required
- 3+ years of backend TypeScript or Node.js production experience building services, APIs, and asynchronous workflows
- Payments or billing experience, including subscriptions, webhooks, payment service provider integrations, ledgers, lending, or e-commerce checkout
- Fluency with PostgreSQL, including schema design and queries
- Willingness to learn Go
- Testing-minded approach and experience writing automated tests alongside production code
- Experience using AI-assisted engineering tools as part of the development workflow
- Strong written and spoken English
- Availability during US business hours
What We Do
Maxana is a digital transformation partner that understands your objectives and requirements, quickly assesses your current technology ecosystem, and delivers your FinTech Digital Initiatives. Maxana combines best in class client delivery with a focus on transparency and engineering competency enabling outcomes that deliver the highest possible return on your FinTech investment dollars. Professional Services and Staffing Maxana’s Professional services and staffing enables our clients to achieve their Fin Tech goals and objectives. Maxana provides CTO level oversight with quality delivery with a customer first mindset. Our staffing and services run the gamut from Enterprise and solution architecture, best in class engineering and development teams, or discrete individual contributor resources to support your programs and projects. Custom Integration Solutions Maxana’s Custom Integration Solutions Teams maximize business value by rapidly designing and implementing best in class integrations. Our custom integration solutions securely extend the functionality of your applications with new and existing third-party SaaS, open and proprietary platforms, and enterprise systems quickly driving both accelerated revenue and amazing customer outcomes. Payment Processing Not every company will need the same kind of online payment software, which is why Maxana designs systems for our clients from the ground up. Bespoke software, off-the shelf solutions..whatever your company needs, Maxana we’ll deliver it in a cost-effective, rapidly deployable manner.
