> Markdown version of [/jobs/ext/1249725-full-stack-engineer](https://www.wearedevelopers.com/jobs/ext/1249725-full-stack-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Full Stack Engineer - **Company:** BOLDIN ASSOC - **Location:** United States (Remote available) - **Experience:** Experienced - **Salary:** $175,000.0 - $210,000.0 - **Contract:** Permanent contract - **Skills:** Amazon Web Services, Data Analysis, Code Review, Relational Databases, PostgreSQL, Automation of Marketing, Ruby on Rails, Software Engineering, Systems Integration, TypeScript, Web Application Frameworks, Apache Yarn, ReactJS, Backend, Stripe, Material UI, React Redux, Webhooks, Data Pipelines, Api Management - **Published:** July 12, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=95d0b731bc3f306e ## About the Role * 4+ years of professional software engineering experience, primarily backend. * Strong experience with a server-side framework and relational database (we use Ruby on Rails; comparable experience is fine if you're eager to pick up Rails). * Strong experience building webhook-driven, third-party API integrations, with sound reasoning about failure, retries, and idempotency. * Working proficiency with a modern JS/TypeScript front-end framework (we use React) - comfortable contributing to the front end when the work calls for it. * A pragmatic eye for the user experience, especially in high-stakes flows like signup and payment., * Experience with financial-account aggregation providers (Plaid, Finicity, Yodlee, or similar). * Ruby on Rails experience. * Experience migrating or consolidating payment/billing systems. * Background in fintech, financial services, or another domain with sensitive user data and compliance considerations. * Familiarity with CRM, lifecycle, or analytics tooling (Intercom, ActiveCampaign, Segment, or similar) - these are learnable on the job. * Experience optimizing top-of-funnel conversion and running experiments. ## Description We're hiring a Full Stack Engineer to strengthen this team. Much of the funnel runs on third-party integrations - payment platforms, financial account aggregation, lifecycle messaging, and analytics - and we need someone who is comfortable owning that connective tissue end-to-end, from a React/TypeScript front end through a Ruby on Rails back end to the webhooks that tie external services together., * Build and maintain the registration, onboarding, checkout, and conversion flows that move visitors to activated, paying members. * Own integrations across the funnel: payment platforms, lifecycle/marketing messaging, and product analytics - including the webhook handlers and gateway services that keep them in sync. * Contribute to the ongoing payments migration (consolidating multiple legacy payment platforms onto our primary processor) and help simplify a multi-gateway billing setup. * Work across the stack: React/TypeScript on the front end, Ruby on Rails on the back end, with the data and webhook plumbing in between. * Partner with product, design, and the broader engineering org to instrument and improve top-of-funnel conversion, grounded in analytics. * Write tested, maintainable code and participate in code review. What you'll work on The funnel touches a broad set of external systems. You won't need experience with all of them, but this is the landscape: * Payments & billing: multiple platforms today (primary processor plus legacy gateways and cart/checkout tools), with an active migration to consolidate them. Subscription lifecycle, webhooks, and tax handling. * Financial-account aggregation: linking members' real financial accounts during onboarding - a core, trust-critical part of the product. * Lifecycle & support messaging: in-app messaging/support, marketing automation, and transactional email. * Analytics & experimentation: product analytics and a customer-data pipeline used to measure and improve funnel conversion. KPIS + Targets * Trial Cancels * Subscriber Churn * Stakeholder NPS * Integration cost efficiency, * Front end: React, TypeScript, Material-UI, Redux, SWR (Yarn workspaces monorepo) * Back end: Ruby on Rails, PostgreSQL, Sidekiq * Integrations: Stripe, Braintree, ChargeDesk, Plaid, Intercom, Segment, and more * Infra & data: AWS, plus a data pipeline for analytics ## Related Videos - [Navigating Growth, Scaling Challenges, and Office Expansions with David Singleton, CTO at Stripe](https://www.wearedevelopers.com/videos/100362-navigating-growth-scaling-challenges-and-office-expansions-with-david-singleton-cto-at-stripe) - [Throwing off the burdens of scale in engineering](https://www.wearedevelopers.com/videos/608-throwing-off-the-burdens-of-scale-in-engineering) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [Build Your Own Subscription-based Course Platform](https://www.wearedevelopers.com/videos/321-build-your-own-subscription-based-course-platform) ## Related Articles - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [Fullstack Developer Salary UK](https://www.wearedevelopers.com/magazine/251-fullstack-developer-salary-uk) - [The 7 Most Popular Backend Frameworks for Developers](https://www.wearedevelopers.com/magazine/403-the-7-most-popular-backend-frameworks-for-developers) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers)