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Urgent! Senior Ruby Backend Engineer Position in Brasil - Kitrum

Senior Ruby Backend Engineer



Job description

3 days ago Be among the first 25 applicants.

This range is provided by Kitrum.

Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base Pay Range $70,000.00/yr - $72,000.00/yr Job Description We’re looking for a Senior Ruby Engineer to join the Payments team and help evolve the platform that powers millions of subscription bills worldwide.

You’ll design and deliver features across our Ruby on Rails ecosystem, integrate with multiple payment service providers (PSPs), and improve resiliency and user experience at a global scale.

This is a full‑time role with long‑term engagement.

This remote position, ideally suited for candidates located in LATAM or the US time zones, is perfect for someone with a deep technical background in Ruby backend stack and AWS cloud solutions.

Qualifications 5 years of backend experience with Ruby and Ruby on Rails for high‑scale, production systems.

Payments domain experience, including integrations with PSPs such as Stripe, Braintree, Adyen.

3 years of experience with AWS building, operating, and monitoring cloud services.

Strong ownership, clear communication, and ability to drive projects end‑to‑end.

English Level: Upper‑Intermediate English or higher.

Strong Plus Databricks exposure (e.g., analytics/observability workflows around payments).

Hands‑on use of AI productivity tools for coding (e.g., Cursor, ChatGPT/Copilot‑style assistants).

Responsibilities Own and enhance the payments & billing platform, ensuring accuracy, reliability, and great UX across the subscription lifecycle.

Design, implement, and ship new features and services in Ruby/Rails to support billing, retries, dunning, and PSP capabilities.

Integrate and optimize multi‑PSP payment flows (auth, capture, refunds, chargebacks, reconciliations).

Improve observability & resilience (logging/metrics/alerts, graceful degradation, idempotency, retries).

Partner with product, data, finance, and support to troubleshoot production issues and deliver high‑quality outcomes.

Contribute to code reviews, technical design docs, and team standards.

About The Project Client is an American e‑book and audiobook subscription service that includes one million titles.

The platform hosts 60 million documents on its open publishing platform.

The payments and billing platform powers millions of subscription bills globally.

This platform integrates with multiple PSPs to process payments for a global subscription platform (authorization, settlement, refunds, invoicing, dunning).

Tech Stack Ruby on Rails application running on AWS, integrating with multiple PSPs (Stripe, Braintree, Adyen).

Team Composition You’ll work within a payments squad of 3–4 engineers, collaborating with product and adjacent platform teams.

Working Conditions Work schedule: US business‑hours overlap (between EST and PST time zones).

Engagement: long‑term, full‑time.

Fully Remote: This role offers the flexibility to work from anywhere.

Interview Process HR Interview: Initial discussion with our recruiter.

Technical Interview: Hands‑on Ruby/Rails coding challenge.

Hiring Manager Round: Deep dive into prior projects, system design, and problem‑solving.

Benefits Competitive Pay.

Remote Flexibility.

Professional Growth: Paid courses, certifications, mentorship.

Work‑Life Balance: 30 days of paid vacation, 6 paid sick days, flexible hours.

Inclusive Culture.

Cool Perks: Virtual team events, home office budget, exclusive content and tools.

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Required Skill Profession

Other General



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