Design, build, and scale backend services and APIs for Flex's core financial infrastructure, including payments and ledger systems.
Drive end-to-end delivery of high-impact initiatives from requirements to operational excellence.
Partner with cross-functional teams including Product, Finance, Risk, and Compliance to build scalable, compliant payment experiences.
Flex is a growth-stage FinTech company creating a better rent payment experience by allowing users to pay rent on a schedule that fits their budget. The company has a global team across the US, Australia, Canada, and South America, and fosters an inclusive culture with a focus on deliberate growth.
Build fraud detection and risk decisioning systems, rule engines, and scoring pipelines.
Create investigation tooling for the Trust & Safety ops team to triage and resolve cases.
Mentor team members in Trust & Safety domain expertise and code reviews.
Givebutter is the most-loved nonprofit fundraising and CRM platform, empowering changemakers to raise more, pay less, and give better. It has been certified as a Great Place to Work since 2021 and is the #1 rated nonprofit software company on G2.
You will lead the Payments engineering team, guiding them in building and maintaining complex payment systems that support Fleetio's customers and operations.
You will partner with Product and Engineering leadership to prioritize roadmap work and help the team navigate technical tradeoffs involving reliability, risk, and delivery speed.
You will coach and develop engineers through regular 1:1s, feedback, and performance conversations, fostering a positive and accountable engineering culture.
Fleetio is a modern software platform that helps thousands of organizations worldwide manage their fleet operations. They raised $450M in Series D funding in 2025 and are a proud founding member of the Rails Foundation, with a remote-friendly culture.
Design and build core backend systems that power Lime's fleet of connected vehicles.
Collaborate cross-functionally with engineers, data scientists, and product managers.
Contribute to shaping engineering culture and participate in an on-call rotation.
Lime is a global leader in micromobility on a mission to make transportation shared, affordable, and carbon-free. A Time Magazine 100 Most Influential Company, it has powered over one billion rides across 30 countries.
Own and evolve metering infrastructure to ensure accurate and reliable billing event processing.
Expand and optimize payment platform integrations, including subscription management and usage reporting.
Build customer-facing usage dashboards and forecasting capabilities for transparent consumption insights.
Stripe is a financial infrastructure platform for businesses, enabling online payments and revenue operations. It is a fast-growing, engineering-driven company with a collaborative culture focused on ownership, innovation, and high-quality products.
Work directly with merchants and PSP partners to guide them through the full integration lifecycle, from solution design and API integration to go-live and post-launch support.
Lead technical discussions with merchant teams to design optimal integration approaches using Binance payment solutions and act as the primary liaison between merchants, product, and engineering.
Analyze merchant feedback, performance data, and market trends to identify opportunities for product improvements and integration tool enhancements.
Binance is a leading global blockchain ecosystem behind the world's largest cryptocurrency exchange by trading volume and registered users. Trusted by over 300 million people in 100+ countries, the company offers a flat structure, collaborative culture, and opportunities for career growth in a fast-paced, innovative environment.
Own payments and fraud operations end to end, balancing fraud loss and customer friction.
Manage third-party vendors and set strategy for scaling payments trust.
Lead incident response and optimize checkout conversion.
Courtyard.io is one of the fastest-growing collectibles startups, making it faster, easier, and more exciting to discover, collect, and cash out instantly. We are a remote-first company hiring across all functions to push the boundaries of what's possible in collectibles and digital ownership.
Own bank systems end-to-end, including infrastructure, data platform, and vendor integrations.
Leverage AI tools as a force multiplier for code, design, and operations.
Partner with compliance and risk to build examiner-ready systems and documentation.
Affirm is reinventing credit to make it more honest and friendly, giving consumers flexibility to buy now and pay later without hidden fees. It is a remote-first public company with a strong engineering culture and a focus on employee wellbeing.
Build backend services and APIs for onboarding, accounts, payments, cards, transfers, rewards, travel, FX, KYC and risk flows.
Design reliable systems that can support real customer transactions, operational workflows and future financial products.
Integrate with internal systems, financial partners, payment providers, AI services and third-party platforms.
BJAK is a mobile-first insurance platform enabling insurance accessible online, and now expanding to spending, saving, investing, and more. Founded in 2019, the company has a global team of over 20 nationalities and seeks talented, driven individuals who work for passion.
Execute the full software development lifecycle across both backend services and frontend interfaces.
Design and build well-tested, well-documented features that span APIs, data models, and UI.
Contribute to verification plans, quality assurance procedures, and deployment guardrails.
Xplor Technologies provides vertical software, embedded payments, and AI-powered capabilities to help businesses in various industries simplify operations and enhance customer experiences. With over 130,000 businesses in 72+ countries and processing over $47 billion in payments annually, the company fosters a culture of innovation and collaboration guided by core values like 'Find a better way' and 'Win together'.
Build scalable backend systems to serve millions of users and integrate with third-party software like Payments, Accounting, and CRMs.
Optimize the GraphQL backend for fast performance and create generic systems for billing, document creation, and task workflows.
Ship code, conduct code reviews, and participate in architecture docs and design handoffs.
Supermove is bringing technology to the moving industry, an industry previously untouched by software, aiming to radically uplift the moving experience. They are a 40-person team of alums from Pinterest, Asana, Facebook, and Google, and recently raised $18M Series A from a16z.
Take full ownership of backend features from scoping through to production, keeping the team informed on progress, risks, and blockers.
Design and deliver backend services that handle real payment volume with a focus on reliability, performance, and correctness at scale.
Contribute to architecture discussions, advocate for clear service contracts, and write production-ready code with the next engineer in mind.
Primer is a unified infrastructure for global payments that provides finance and payments teams with visibility and control to reduce complexity and capture more revenue. Backed by Sofina, Peak XV Partners, and others, it is a remote-first company with a collaborative and mission-driven culture.
Spearhead custom technical solutions for client onboarding, designing sustainable data integrations beyond core product development.
Collaborate with the Implementations team to evaluate client data, define scope, and establish timelines and effort estimates.
Write robust, scalable code adhering to best practices, and create reusable tools to enhance operational efficiency.
TrueAccord, a wholly owned subsidiary of TrueML, transforms debt resolution using machine learning and a human-based approach to guide lenders and consumers toward financial health. With a world-class leadership team and proprietary predictive models, they serve millions of Americans annually.
Set technical direction across the bank's core systems, including cloud infrastructure, data platform, and the integration boundary with Affirm Inc.
Own the most ambiguous and high-stakes engineering problems end-to-end, from design to incident response.
Act as a force multiplier on a small team, setting standards for code review, design, and documentation, and leveraging AI tools to enhance productivity.
Affirm is reinventing credit to make it more honest and friendly, offering buy now, pay later services without hidden fees or compounding interest. They are a remote-first company with a focus on people-first culture, and they are building their own bank with a small, AI-native engineering team.
Act as the translation layer between payments operations, compliance, and engineering to turn operational needs into prioritized requirements.
Own the payments roadmap, sprint planning, and define KPIs like authorization/approval rate and payment success rate.
Build business cases for multiprocessor routing, retry logic, and fraud-vs-conversion tradeoffs to drive systemic improvements.
Stash is the direct-to-consumer commerce platform for game studios, building webshops and checkout infrastructure to reduce app store taxes. We process hundreds of millions in D2C revenue and are scaling rapidly toward a 5x volume target in 2026.
Review payment transactions and identify fraudulent or suspicious activity.
Collaborate with customers and internal teams (Finance, Risk, Compliance, Product) to resolve payment issues.
Contribute to improving and streamlining manual workflows as the team scales.
WeTravel builds tools that empower entrepreneurs to launch and grow their own travel businesses, helping them process payments and manage customers. The company is trusted by 8,000 organizers and aims to grow from $1B to $10B in travel experiences, with a passionate, travel-loving team.
Design and deliver large-scale, real-time systems with high quality, scalability, and operability.
Collaborate with product management, data engineering, and teams to bring end-to-end solutions to customers.
Take operational ownership using monitoring and observability tools to identify and respond to issues.
Signifyd helps merchants grow their businesses by building trusted relationships and providing fraud-free commerce solutions. We securely process billions of transactions annually and foster a culture of commitment, empathy, and creativity.
Own the technical roadmap and author system designs for scalable, secure card issuing and payment processing products.
Spend significant time in the codebase writing, reviewing, and optimizing code across the issuing and processing stack.
Identify and drive high-impact technical initiatives that improve performance, reliability, and cost-efficiency of core processing engines.
Marqeta is on a mission to change the way money moves, enabling embedded finance for brands like Block, Cash App, and Uber. As a publicly-traded company with a Flex First culture, they emphasize collaboration and innovation across a diverse team.
Lead engineering team for integration projects, including hiring, performance management, and technical oversight.
Define and enforce engineering standards, conduct code reviews, and ensure SOC 2-compliant infrastructure.
Drive design and implementation of data quality monitoring systems for payroll accuracy.
Truv is transforming the financial data industry with a secure and real-time API platform for payroll account access. Backed by $30M from top investors like Kleiner Perkins and NYCA, our team brings expertise from industry giants like Apple and Okta, driving innovation in a $2B legacy market.
Serve as the single-threaded leader for the transaction rail, driving alignment and execution across the payment lifecycle.
Define end-to-end technical and product strategy for connectivity, orchestration, transaction core, money operations, and risk.
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Yuno is an AI-native operating system for global commerce, powering the financial infrastructure of enterprise merchants, banks, and wallets. It offers connectivity to 1,000+ payment methods and 460+ integrations in 190+ countries, with a remote-first culture and a focus on innovation.