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US Canada Mexico 4w PTO 16w maternity 4w paternity

  • Design and implement features for the Marketplace, including shop integrations and Fleetio Pay.
  • Collaborate with Product Managers, Designers, and Engineers to deliver scalable, high-quality software.
  • Write maintainable, well-tested code and participate in code reviews to ensure quality and consistency.

Ruby On Rails ReactJS TypeScript PostgreSQL Stripe

20 jobs similar to Senior Software Engineer, Payments

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US 12w maternity 12w paternity

  • Design, develop, and maintain end-to-end portal solutions in Ruby on Rails for endpoint health, troubleshooting, and remediation workflows.
  • Own delivery, quality, reliability, and maintainability of portal-side features within Endpoint Services’ domain.
  • Partner with agent engineers to translate backend health signals and diagnostics into effective customer-facing and internal experiences.

Huntress is a remote-first cybersecurity company founded in 2015 by former NSA cyber operators, making enterprise-grade cybersecurity accessible to businesses of all sizes. They now secure over 5M endpoints and 11M identities worldwide and back their platform with a 24/7 human-led SOC.

US Canada Mexico 4w PTO 16w maternity 4w paternity

  • Collaborate with Product Managers, Designers, and Data Ops to research, plan, and build features that drive user adoption.
  • Create user experiences and run experiments to increase engagement from trial users.
  • Build systems for customized onboarding and improve feature areas to reduce churn.

Fleetio is a modern software platform that helps thousands of organizations worldwide manage their fleet operations. The company has raised $450M in Series D funding and is on an exciting trajectory with a strong engineering culture.

US Unlimited PTO 16w maternity 16w paternity

  • Build and ship customer-facing features for banking, tax automation, and expense tracking using Ruby on Rails, React, Redux, and TypeScript.
  • Raise the technical bar through code review, architecture input, and mentoring engineers across teams.
  • Own work end-to-end from scoping and building to reviewing and monitoring, partnering closely with product and design.

Found builds financial tools for self-employed individuals, automating taxes, accounting, and expense tracking with a business bank account. The company is positioned as a safety net for the growing self-employed workforce and values kind, resourceful, and passionate team members.

US

  • Drive product-led growth by architecting end-to-end features for self-onboarding, upgrades, and checkout flows. - Own full-stack features from database schema to polished frontend using React, TypeScript, and Node.js. - Collaborate with Product, Design, and Data to run experiments and deliver high-quality user experiences.

Overflow is a fintech and SaaS platform that enables giving through cash, stock, and crypto for churches and nonprofits. It is a growth-stage, Series C company backed by leading venture firms, with a culture rooted in generosity and excellence.

US Unlimited PTO

  • Design and scale fullstack solutions for a digital care platform serving people with chronic conditions.
  • Collaborate with product, operations, and business teams to translate needs into reliable software.
  • Write clean, maintainable code and contribute to engineering strategy and system architecture.

This is a hiring platform that uses AI to match candidates with roles at partner companies. They process applications and share top candidates with employers, focusing on objective and fair reviews.

US Unlimited PTO

  • Design and deliver new features that scale with our growing customer base and ensure a seamless mobile experience for cash advances.
  • Collaborate closely with other engineers to ship high-quality code and tackle tough problems unique to cash advance products.
  • Create and maintain clear documentation for a growing, remote organization.

OnePay is a consumer fintech platform that brings together banking, high-yield savings, credit cards, point-of-sale lending, investing, and crypto in one place, and also partners with employers and platforms to deliver embedded financial services. Backed by Walmart and Ribbit Capital, it's a fast-moving, high-growth company with a mission-driven culture and a focus on scaling its products.

United States

  • Design and scale systems to drive provider growth, from acquisition to retention.
  • Lead technical projects from concept to delivery, navigating trade-offs.
  • Mentor engineers and foster a high-performing engineering culture through code reviews.

Rula is a mental health company dedicated to treating the whole person with evidence-based and compassionate care. It is a remote-first company with most employees in the U.S., emphasizing diversity, equity, and inclusion.

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  • Develop scalable platforms, services, and internal tooling to power Rula’s Revenue Cycle Management operations.
  • Build and maintain systems supporting payments, claims submission, and operational workflows across the revenue cycle.
  • Collaborate with engineering, operations, and business stakeholders to improve efficiency, reliability, and cost effectiveness.

Rula is a mental healthcare provider dedicated to evidence-based, compassionate care that empowers individuals to take charge of their well-being. As a remote-first company, we hire in most U.S. states and foster a culture of inclusion, diversity, and equity.

$150,000–$187,000/yr
US

  • Design, build, and maintain backend code to support features used by 5 million users, including backend development in Typescript and regular participation in code reviews.
  • Provide technical leadership and assist in guiding the team's overall technical direction, offering mentorship and pairing with other engineers regularly.
  • Work closely with product and design teams to define feature specifications and build products using frameworks such as React.js and React Native.

Dave is a financial app on a mission to build products that level the financial playing field, leveraging technology to create affordable, transparent, and user-centric access to liquidity for millions of Americans. As a virtual-first company, Dave fosters a collaborative culture where team members are valued, heard, and empowered to do their best work.

US

  • Lead frontend and fullstack implementation workstreams for carrier and enterprise partner integrations, owning architecture and delivery from kickoff through production.
  • Architect scalable UI layers and API integrations, setting reusable patterns for partner-facing surfaces across implementations.
  • Champion engineering excellence through comprehensive testing strategies, security-first thinking, and AI coding tool best practices.

Bestow is a leading vertical technology platform that modernizes life insurance by unifying the legacy value chain for carriers. Backed by investors like Goldman Sachs and trusted by major insurers, Bestow is powered by a team that moves with precision, purpose, and heart.

US

  • Develop and maintain core systems supporting user accounts, payments, and APIs.
  • Integrate third-party services such as KYC/AML, foreign exchange, and banking aggregators.
  • Work closely with sales and engineering teams to design and implement solutions for customer needs.

Sphere Pay is a payment platform that provides APIs for managing user accounts and transactions. The company fosters an inclusive and diverse work environment with a focus on engineering excellence.

$81,000–$135,000/yr
Netherlands 4w PTO

  • Build and scale high-performance backend systems using Ruby on Rails and modern technologies.
  • Collaborate with product managers and cross-functional teams to deliver impactful features.
  • Influence architecture, technical strategy, and engineering practices in a fully remote environment.

Our partner company builds and scales AI-powered products used by millions worldwide. It is a fast-growing technology environment with a fully remote, autonomous culture focused on speed, quality, and continuous innovation.

$157,000–$193,000/yr
US

  • Design, build, and operate cloud-native applications with emphasis on reliability and scalability.
  • Embed automated testing, observability, and operational ownership into every stage of feature delivery.
  • Collaborate with product engineering teams to champion event-driven best practices and deliver scalable solutions.

We help both new and experienced traders by providing training, insights into trading patterns, and facilitating payout requests. We foster a collaborative culture with cameras-on meetings and a robust Slack environment.

$160,000–$180,000/yr
Global Unlimited PTO

  • Drive self-serve product offerings to bring prospective customers into our products and grow new revenue.
  • Design and update systems using good design patterns on both frontend and backend for extensibility and evolution.
  • Ensure data integrity and reliability of frontend surfaces and application stacks.

People Data Labs is a provider of people and company data, integrating thousands of compliantly sourced datasets into a developer-friendly source of truth. The company values extreme ownership and teamwork, focusing on building data products for data teams and independent developers.

Global Unlimited PTO

  • Build polished, performant web UIs using React, TypeScript, and modern CSS.
  • Work across the full stack, building and consuming GraphQL/REST APIs and contributing to Rust services.
  • Partner with design and product to shape features, set technical direction, and mentor engineers.

Ditto is redefining how data moves at the edge with a peer-to-peer sync engine for resilient real-time applications. With over $145 million in funding and trusted by organizations like Chick-fil-A, Delta Airlines, and the U.S. military, Ditto is a globally distributed startup committed to diversity and inclusion.

$138,500–$162,900/yr
US Unlimited PTO

  • Partner closely with product managers and designers to define and build features that address real user needs and drive meaningful outcomes.
  • Design, build, and iterate on end-to-end product features, seamlessly connecting backend systems with frontend experiences.
  • Develop and maintain backend services and APIs (REST and/or GraphQL) that power user-facing applications and service-to-service interactions.

Modern Health is a mental health benefits platform for employers, offering employees access to one-on-one, group, and self-serve digital resources. Backed by investors like Kleiner Perkins and Founders Fund, the company raised over $170 million, is the fastest entirely female-founded company to reach Unicorn status, and fosters a culture of high empathy, high accountability, and a drive to win.

US Unlimited PTO

  • Lead a small engineering team across multiple initiatives, ensuring clear scope, execution discipline, and delivery accountability, while remaining hands-on in code development.
  • Design and build robust GraphQL and REST APIs, scalable backend services, and data ingestion workflows using React, TypeScript, Node.js, SQL, and modern monorepo setups.
  • Drive engineering excellence through code quality, testing best practices, architecture documentation, and mentoring engineers via code reviews and structured feedback.

RxVantage is a small company with a mission to connect healthcare providers with life science experts and resources to improve patient care. They power over 1 million educational exchanges annually and have a proven product, a strong mission, and a passionate team.

$145,000–$156,000/yr
Global

  • Lead design and development of product features for highly available payment processing, subscription billing, and reporting platforms.
  • Debug and troubleshoot complex issues, optimize system performance, and ensure reliability across money-movement flows.
  • Mentor junior team members and lead adoption of best practices for coding standards, testing, and deployment.

FastSpring is the world's leading ecommerce platform for software and SaaS companies, powering sales growth for over 3,500 companies in more than 200 countries. Founded in 2005 and privately owned, we are an Inc. 5000 honoree with offices globally and a remote-first, inclusive culture.

$150,000–$170,000/yr
US

  • Architect and deliver high-quality internal systems and customer-facing products, building scalable backend services and performant frontend experiences.
  • Mentor peers and own features end-to-end from design through deployment and ongoing support.
  • Write secure, maintainable code, enhance existing products with complex queries and API integrations, and communicate progress effectively.

Patch My PC is a company that improves lives by providing enterprise solutions for IT and security teams to automate third-party patching. They are a fully remote crew of 150 employees supporting over 10,000 customers and 30 million devices, guided by core values focused on customers, team, and community.

US Unlimited PTO

  • Build and ship features that drive measurable outcomes for customers and servicing agents.
  • Employ best practices like code reviews, automated testing, and continuous delivery for quality and speed.
  • Collaborate cross-functionally with product managers, backend engineers, and operations leads to shape end-to-end experiences.

OnePay is a consumer fintech platform that brings together banking, savings, credit cards, lending, investing, and crypto. Backed by Walmart and Ribbit Capital, they are a high-growth company with a fast-paced, mission-driven culture.