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About the Role
99Pledges is a fundraising technology platform powering online donation campaigns. We are seeking a Senior Software Engineer to contribute to our mature Rails codebase, focusing on payment integrity and end-to-end feature ownership, from database schema to UI.
Responsibilities
- Own features end-to-end, from database schema to background jobs to the user-facing UI.
- Develop and maintain core fundraising platform features including campaigns, participants, donations, and reporting.
- Integrate and manage payment processing with multiple providers (credit card, PayPal, ACH/EFT), including payouts, requests, and reconciliation.
- Enhance the multi-tenant white-label system with branding, feature flags, and configuration.
- Implement and improve fraud prevention and trust systems, including detection, device fingerprinting, and abuse mitigation.
- Manage background processing for tasks such as email delivery, data exports, and metric calculations.
Requirements
- 3+ years building and maintaining production web applications with strong Ruby on Rails experience.
- Solid grasp of relational database design, query performance, and safe migrations against large production tables.
- Experience integrating third-party APIs, ideally payment processors, and understanding their failure modes (retries, idempotency, webhooks, reconciliation).
- A test-first mindset, writing well-tested code and prioritizing correctness and edge cases.
- Comfort working across the full stack, including server-rendered views and front-end interactivity.
- Strong communication skills and ability to explain technical tradeoffs clearly.
- Experience with payment/fintech systems, PCI considerations, or handling money in software is a plus.
- Familiarity with multi-tenant / white-label architectures is a plus.
- Experience with background job systems and asynchronous processing at scale is a plus.
- Exposure to fraud detection or trust & safety systems is a plus.
- Experience with feature flagging and A/B experimentation (e.g., PostHog) is a plus.
Skills
- Ruby on Rails
- PostgreSQL
- HAML
- SCSS
- Bootstrap
- jQuery
- Delayed Job
- Braintree
- PayPal
- Dwolla
- Heroku
- AWS S3
- Redis
- Postmark
- Honeybadger
- New Relic
- Datadog
- PostHog
Location
- Remote
Work Type
- Full-time
Experience Level
- Senior
About the Company
- 99Pledges is a fundraising technology platform that powers online donation campaigns for organizations, teams, and individuals through our flagship product and through white-label deployments for partners.
- We process real money at scale, so correctness, reliability, and security are core to everything we build.
- Our Values: Humility, Honesty, Hunger, Horizon.
- We seek to build a generational software company.
- We review designs before writing code and favor explicit, well-engineered solutions over clever ones.
- We prefer DRY code, thorough testing, and small, reviewable changes.
- We take production seriously: careful migrations, monitoring, and a bias toward correctness — because we handle donations that matter to real people and organizations.
Equal Opportunity
- To ensure transparency, we want candidates to know that Beacon Software uses Artificial Intelligence and AI-enabled tools to assist with screening, reviewing, organizing and highlighting profiles and applications that match the key requirements for each role.
- AI does not make hiring decisions: Every application is reviewed by a member of our team, and all decisions throughout the process are made by humans. We use AI to support efficiency and consistency, not to replace human judgment.
- We are committed to a fair, thoughtful, and equitable experience for every candidate.