Lead Engineer – Ruby on Rails

Beacon

. Set the engineering and product roadmap with the GM, product team, and customers .

Posted 11/2/2026full-timeRemote • United StatesSeniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in payment integrations, production-level AI feature deployment, and robust engineering practices, including trunk-based development and automated testing. Proficient in managing complex systems and optimizing cloud costs while ensuring high standards of code documentation and incident response.

Highest-signal resume keywords

Payment IntegrationsPostgreSQL Database ManagementAI Feature DeploymentTrunk-Based DevelopmentRuby on Rails

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Payment ReconciliationFraud DetectionProduction ExperienceDatabase MigrationCoding Agents

Soft Skills

Clear WritingCommunication

Tools & Technologies

Ruby on Rails 7PostgreSQLAWS S3HerokuBraintree

Industry Keywords

Incident ResponseCloud Cost OptimizationWebhooksIdempotencySynthetic Data

Tech Stack

Tools & technologies

AWSBootstrapCloudHerokujQueryPostgresRedisRubyRuby on RailsSCSS

About the role

Key responsibilities & impact

Set the engineering and product roadmap with the GM, product team, and customers
Translate business priorities into a sequenced plan and explain tradeoffs
Manage donations, automatic payouts, and reconciliation across multiple payment providers
Handle retries, idempotency, webhooks, and degraded payment providers during campaigns
Put AI features into production with evaluations, guardrails, and tenant-safe tool use
Use coding agents to increase individual engineering output
Raise engineering standards through trunk-based development, CI, staging with synthetic data, feature flags, test coverage, and reliable deployments
Document the codebase, tests, and processes for future engineers
Handle fraud detection, device fingerprinting, and donor and school safety
Monitor cloud and vendor spend and optimize costs
Communicate directly with operators, school administrators, and partners
Own alerting, uptime, incident response, and follow-up remediation for scheduled fundraising events

Requirements

What you’ll need

Senior generalist able to work across web, data, infrastructure, and AI, and pick up unfamiliar stacks quickly
Production experience handling money, including payment integrations, payouts, reconciliation, or fraud work
Experience as the only engineer or clear technical owner of a system that mattered, including design, build, deploy, on-call, and customer support when it broke
Ability to model, query, and tune production PostgreSQL
Experience running migrations against large tables without downtime
Shipped LLM features to production, including retrieval, tool use, evals, and guardrails
Track record of introducing trunk-based development, automated testing, and environment discipline while continuing to ship
Judgment about technical debt and its business cost
Clear writing
Experience with Ruby on Rails 7 and Ruby 3.1
Experience with PostgreSQL, HAML, SCSS, Bootstrap, jQuery, Delayed Job, Braintree, PayPal, Dwolla, Stripe, Heroku, AWS S3, Redis, Postmark, Honeybadger, New Relic, Datadog, and PostHog
Ability to use coding agents as part of day-to-day work

Benefits

Comp & perks

Work on software that helps organizations raise money for causes they care about
Direct, visible impact on the product and the people who depend on it
Small team environment
AI-assisted hiring process with every application reviewed by a human