Design backend systems and APIs (Python preferred) that run real-time, business-critical accounting logic.
Ship features end to end - architecture, CI/CD, testing, monitoring, and beyond.
Integrate third-party tools and external systems, proactively managing edge cases and risk.
DualEntry is building the OS for finance, an AI-native ERP that automates accounting from data entry to close. They have raised over $100M from top venture firms and serve customers from startups to public companies, hiring high-agency outliers who have achieved difficult things.
Own dispute automation features end-to-end, including deadline tracking, evidence collection, and response templates.
Extend dispute lifecycle coverage to new PSPs, building on existing patterns across the first five integrations.
Build components of the native rules engine: velocity rules, blocklists, and device fingerprinting.
Primer is the unified infrastructure for global payments, giving finance and payments teams visibility and control from a single platform. Backed by investors like Sofina, Peak XV, and Accel, Primer is a fully remote company with a culture of collaboration and mission-driven impact.
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.
Move across the backend and support development of our dashboard frontend.
Architect and build automation for handling payment disputes at scale.
Work directly with third-party fraud vendors to build a unified comparison and switching experience.
We are the unified infrastructure for global payments, giving finance and payments teams the control to reduce complexity and capture more revenue. We're a remote-first scale-up backed by top investors, building the payments layer world-class companies rely on.
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.
Architect data highways by building custom ETL/ELT pipelines using Databricks, Snowflake, or S3.
Enable bidirectional flow with inbound authentication channels and external APIs for banks to trigger Porters' workflows.
Scale the integration playbook using messaging/streaming services like Apache Kafka and ELT tools to automate customer onboarding.
Porters is building the operating system for autonomous banking. They have gone live with their first customers and are a small, fast-paced team working closely with founders who have scaled fintech and analytics products before.
Own day-to-day accounts payable and receivable processes, including invoice processing and client billing.
Support month-end close with account reconciliations, journal entries, and variance analysis.
Prepare recurring financial reports and dashboards for leadership on cash position, burn, and AP/AR aging.
Astra builds mission-critical infrastructure for moving money at scale, processing billions in annual transaction volume with 99.9%+ uptime. They are a remote-first company with a small team where employees have big impact, and they are committed to building a diverse and inclusive team.
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.
Design and build backend services that power core business workflows.
Own projects end-to-end from early design through production and iteration.
Make thoughtful tradeoffs between speed, scalability, and maintainability.
Short Story is an award-winning, technology-powered retailer dedicated to petite women 5'4" and under. It is a fast-growing startup backed by leading investors, with a culture that thrives on data insights, exceptional commitment to fit, and urgency.
Lead the design and implementation of core backend services for high-performance, distributed systems.
Drive the use of modern development practices such as BDD and TDD to ensure high-quality code.
Collaborate across teams in a product-driven environment and conduct code reviews.
Primer provides a unified platform for global payments, helping finance teams reduce complexity and capture more revenue. Backed by major investors, the company is a growth-stage startup with a remote-first culture that values autonomy and collaboration.
Design, develop, and maintain scalable backend services, APIs, and cloud-native applications using Python.
Build and optimize distributed systems, payment processing workflows, and backend infrastructure.
Mentor engineers through code reviews, technical guidance, and knowledge sharing.
The company develops AI-driven financial technology solutions for businesses globally. It offers a fully remote work environment with a collaborative and innovative engineering culture.
Lead and develop a Payment Operations team responsible for supporting Mercury Bank's payment rails, ensuring clear priorities and strong operating standards.
Build and scale operational desks across various payment rails including international wires, domestic wires, RTP, ACH, and checks.
Improve operational efficiency through process design, tooling, automation, and AI to reduce manual effort while preserving judgment and control.
Mercury is a fintech company building a complete finance stack for startups, offering banking services through partner banks. It is a growing company focused on creating a seamless banking experience for entrepreneurs.
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.
Design and build core financial systems including trading, ledger, and billing.
Develop systems for transaction processing, reconciliation, and portfolio state management.
Build and scale real-time and batch data pipelines.
Arta leverages AI and digital tools to make financial products accessible to a broader global audience. The company values trust, teamwork, and adaptability.
Set technical strategy for your team on a year-long time scale and collaborate across teams to ensure technical sustainability.
Act as a force-multiplier by defining technical solutions and operational processes for your team.
Foster a culture of quality and ownership by setting code review and design standards and developing talent through feedback.
Affirm is a publicly-traded financial technology company that reinvents credit by offering buy now, pay later services without hidden fees or compounding interest. It has a strong engineering culture focused on building robust, fault-tolerant systems and emphasizes collaboration and quality.
Collaborate across product, engineering, and design to build customer-centric solutions.
Contribute to raising engineering standards and improving customer experiences.
Tackle complex problems in fintech with resilience and a self-starter mindset.
Yendo uses AI to unlock vehicle equity, providing high-limit credit cards to those excluded from mainstream finance. In under 2 years, they've saved customers over $100 million in interest and are backed by leading VCs with a small, collaborative team.
Design and build the backend services that power Operator, a system that helps engineering teams search company knowledge and surface design decisions.
Develop scalable retrieval pipelines, integrate structured and unstructured engineering data, and improve search quality and knowledge retrieval performance.
Collaborate with AI, Product, Design, and Engineering teams to deliver customer-facing capabilities and mentor teammates through code reviews and technical leadership.
CoLab is an AI platform that helps mechanical engineering teams bring life-changing products to market faster by driving stronger engineering decisions. It is a rapidly scaling company recognized on Deloitte's Fast 50 and Fast 500, and named a Canadian company to watch by The Globe and Mail and Financial Post.
Build and own Fundable's core backend including customer-facing APIs, AI microservices, and a workflow builder.
Lead architecture decisions, implementation, and deployment with TypeScript/Node.js or Python, PostgreSQL, and cloud platforms.
Work directly with founders in a high-autonomy role to solve ambiguous problems and ship production systems.
Fundable provides real-time startup data and signals that help growth teams find new startup customers and help investors source their next deals. It is a small, fast-moving team that values high autonomy and an AI-first approach.
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.
Design and launch backend systems at scale using Python or Kotlin.
Collaborate with product management, design, and analytics to define technical plans and articulate constraints.
Foster a culture of quality and ownership through code reviews, design standards, and tech talks.
Affirm is reinventing credit to make it more honest and friendly, offering consumers the ability to buy now and pay later without hidden fees. The company is a global fintech with a remote-first culture, known for its agile and fast-paced environment, serving over 20 million users.