Own the money side of Splash: deposits, withdrawals, entry fees, payouts, fraud checks, and the double-entry ledger tying every cent back to player wallets and contests.
Design and run backend services on NodeJS and TypeScript in AWS, working closely with Finance, Compliance, and engineers in the US and Prague.
Automate reconciliation, build payment processor integrations, and ensure exactly-once posting, audit trails, and safe concurrency in a regulated real-money environment.
Splash brings people and communities together through the gamification of live sports and events. We're a small, quickly growing, remote-first team that loves sports and tech startups.
Build and maintain integrations between Metronome and external billing, payments, marketplace, ERP, and CRM platforms.
Design reliable, event-driven systems for invoice delivery, payment workflows, and status sync with safe retries and reconciliation.
Participate in on-call rotation, lead incident response, and improve observability and automated repair across the systems.
Stripe is a financial infrastructure platform for businesses, helping millions of companies accept payments, grow revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead.
Lead technical solution design for US payments deals as subject-matter expert.
Partner with AEs to quantify pain points and build business cases.
Deliver demos and POCs centered on real payment challenges.
Simetrik is an AI-native Financial Operations Control Platform that automates reconciliation and financial controls for financial institutions and enterprises. The company operates globally with over 180 clients in 60+ countries and offers a collaborative, entrepreneurial culture with small dynamic teams.
Write elegant, efficient, and testable React and Ruby code.
Implement and maintain Ruby on Rails APIs for seamless front-end/back-end communication.
Cover code with tests, perform manual testing, and review colleagues' work.
Toptal is a global network of top talent in business, design, and technology that enables companies to scale their teams on-demand. With $200+ million in annual revenue and team members based around the globe, it is the world's largest fully remote workforce.
Own subscription payments end-to-end across mobile and web.
Build reliable payment infrastructure integrating with multiple providers.
Proactively detect and resolve payment issues with monitoring and automation.
Speak is building an AI-powered language tutor that lets learners actually speak and get instant feedback. Speak is the number one language learning app in South Korea with over $150m in funding and a distributed team across the globe.
Build and own client-facing web dashboards with interactive financial models, scenario sliders, and drill-down reporting.
Create AI automations and database queries that connect live accounting data to forecasting and client workflows.
Work directly with clients and teach internal accountants to build tools, owning issues from data discrepancies to shipped solutions.
SPRCHRGR is a professional services consultancy delivering fractional CFO, controllership, and workflow automation to growth-focused US businesses. We are a small, fast-moving team that values collaboration, learning, and efficiency, and we build custom tools instead of off-the-shelf platforms.
Lead, grow, and coach a team across Analytics and Member Growth while staying hands-on with code, design reviews, and PRs daily.
Own technical strategy for Circle's analytics stack: ClickHouse data infrastructure, rich visualizations, and LLM-powered natural-language Q&A.
Own Member Growth roadmap: onboarding, activation, and reducing friction, partnering with product, design, and data teams.
Circle builds an AI-powered, all-in-one platform for digital businesses—discussions, live streams, events, chat, courses, and payments. We're a fully remote company of ~270 people from 30+ countries, collaborating async across time zones, with annual global offsites.
Serve as a key technical leader for product teams, guiding engineering decisions and aligning with business objectives.
Collaborate with Engineering Managers to mentor developers and shape technical roadmaps.
Combine hands-on coding with architectural leadership to build scalable, reliable systems.
An innovative technology-driven organization transforming the insurance industry through software engineering, machine learning, and data-driven solutions. The company fosters a collaborative culture and offers fully remote flexibility for employees across the United States.
Design and build backend services and frontend features for inventory, order workflows, requests for quotation, and invoicing.
Plan and document features, use AI coding agents to accelerate development, and review their output for quality and correctness.
Develop platform capabilities such as identity and business verification automation, messaging integrations, live chat, and AI-assisted customer support.
They are building a marketplace for GPU compute. It's a small engineering team focused on delivering reliable customer-facing features.
Lead technical design and delivery of scalable banking features for a seamless mobile experience.
Set architectural standards for code quality, performance, security, and reliability across services.
Mentor engineers and partner with product, design, risk, and compliance to ship high-quality software.
OnePay is an all-in-one consumer fintech platform offering banking, savings, credit, lending, investing, and crypto. It's a fast-moving, mission-driven company backed by Walmart and Ribbit Capital, with a low-ego, inclusive culture.
Ship new capabilities for Command, an LLM-powered financial assistant.
Partner with product and compliance teams to define and test new capabilities.
Join a small, experienced team building the future of Mercury.
Mercury builds technology that pushes forward financial interfaces for the long term, such as the LLM-powered financial assistant Command. It is a small but mighty team of experienced product and AI engineers with a scrappy startup environment.
Build and scale the systems and services powering Alpaca's global payments and treasury platform.
Design highly scalable, event-driven microservices using Go, Kubernetes, and cloud-native technologies.
Ensure system integrity and operational scalability while collaborating with a distributed engineering team.
Alpaca builds institutional-grade APIs for trading stocks, ETFs, options, crypto, and more. They are a 400+ person remote-first team valuing curiosity, empathy, and accountability.
Build full stack features end to end, from design through deployment and production support, with a focus on reliability and scalability.
Partner with Product and Design to shape scope, surface technical trade-offs, and provide credible estimates.
Raise the engineering bar through code reviews, mentoring, and shared standards while participating in on-call rotation.
Topstep builds the products funded traders and internal teams use every day, including trader-facing web experiences, account flows, payments, and internal tooling. The company fosters a collaborative, camera-on culture with a mix of fully remote and hybrid work, and encourages taking time off.
Own end-to-end delivery of critical payments initiatives, from framing problems to running production solutions across Brazilian payment rails.
Architect and design systems for money movement with idempotency, ledger, and reconciliation, using Java, Spring Boot, PostgreSQL, and event streaming.
Mentor engineers, lead design and code reviews, and set technical direction for payments domains with AI-native workflow integration.
Clara is the leading platform in Latin America for companies to execute and manage every payment operation, serving over 50,000 businesses. Backed by top investors and named the region's fastest-growing company by Financial Times in 2025, the company has around 400 employees and fosters a culture of clarity, ownership, and inclusivity.
Design, build, and run backend services for stablecoin payments including deposits, withdrawals, and on/off ramps.
Integrate with partners for wallets, virtual accounts, and stablecoin orchestration while connecting to existing banking, ledger, and payments systems.
Own work from design through launch and production support, working closely with product, design, compliance, and business development.
Flex is building AI-native financial services for business owners, re-architecting the financial system from the first dollar earned to spending. They have scaled from zero to nine-figure annualized revenue with $100M+ in equity raised, operating with small, exceptional teams and a culture of extreme ownership.
Lead, coach, and develop a team of engineers across Analytics and Member Growth, contributing directly through architecture and code reviews.
Define and own the technical strategy for the analytics ecosystem, including interactive data visualizations, ClickHouse infrastructure, and AI-powered experiences.
Drive the Member Growth roadmap, partnering with product, design, and data teams to improve onboarding, activation, and retention.
The company is a global, AI-powered SaaS platform helping digital business owners analyze and improve their performance. They have a small, distributed, remote-first team focused on AI-first engineering and high-quality code.