Senior Rails Engineer - Fintech Payments, Remote

Student First Technologies; United States; Remote; USD 150,000 - 190,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

Vision insurance

Life insurance

Short-term disability insurance

HSA- and FSA- eligible plan options

Fully remote within the United States

Flexible time off

Job summary

Student First Technologies seeks a senior Ruby on Rails engineer to own features end to end in Theodore, our Rails monolith. You will read state program rules, design data models, ship changes, and assist support two weeks later, collaborating with product and operations.

You’ll weigh in on architecture while Staff engineers guide direction across the system. You’ll work remotely from the United States on a strong payments/fintech oriented product.

Qualifications

• 5+ years building and maintaining production web applications, ideally including several years of Ruby on Rails.
• Strong SQL and PostgreSQL skills: read query plans, safe migrations, consistent data models.
• A testing habit: write specs to allow safe code changes.
• Experience with a large codebase you didn’t write, with sound refactor judgments.
• Experience working on a remote team and clear written communication.

Responsibilities

• Build and maintain features across portals for families, schools, vendors and admins.
• Translate program rules into configuration and code that differs by program.
• Build features moving real money through banking integrations (ACH, cards, reconciliations).
• Create auditable ledgers: track changes and who/why.
• Protect sensitive family data in all builds.
• Write thorough RSpec tests and improve test coverage.
• Modernize legacy Rails code toward current conventions and participate in PR reviews.
• Take turns on production triage: investigate issues, trace logs, and fix root causes.

Skills

Ruby on Rails

SQL

PostgreSQL

Testing with RSpec

Remote team experience

Codebase judgment/refactor

Tools

Heroku

AWS

GitHub Actions

Hotwire

ReActionView

Job description

Student First Technologies seeks a senior Ruby on Rails engineer to own features end to end in Theodore, our Rails monolith. You will read state program rules, design data models, ship changes, and assist support two weeks later, collaborating with product and operations.

You’ll weigh in on architecture while Staff engineers guide direction across the system. You’ll work remotely from the United States on a strong payments/fintech oriented product.