Design and implement core backend services for high-performance, distributed payment systems.
Take ownership of architectural decisions, balancing scalability, reliability, and maintainability.
Collaborate with cross-functional teams to improve developer experience through testing, code reviews, and documentation.
The company builds payment infrastructure that lets businesses manage payments efficiently across international markets. It is a globally distributed, product-driven engineering team that values collaboration, engineering excellence, and long-term growth.
Design and build new features for the Django backend that powers the consumer dashboard and B2B platform.
Improve performance and reliability of Celery and RabbitMQ pipelines and integrate third-party services like Stripe and WorkOS SSO.
Own features end-to-end, including production debugging and code review with a small backend team.
Optery helps people get their personal data off broker sites. It's a fully remote, small startup headquartered in the San Francisco Bay Area, where engineers work directly with the founders.
Build and own backend services and APIs for policy, coverage, enrollment, and regional rules that scale to new markets.
Translate regional regulatory and product requirements into configurable, reusable platform capabilities.
Partner with Product, Design, Data Science, and Legal to prioritize high-impact work and drive data-informed improvements.
Airbnb is an online marketplace that connects hosts offering unique stays and experiences with guests seeking authentic travel. With over 5 million hosts and 2 billion guest arrivals, it values inclusion, belonging, and a fast-growing, collaborative culture.
Work with technical leaders to design and implement forward-looking approaches for checkout systems.
Own components of checkout systems and define their long-term health.
Collaborate with engineers to build the next generation of the checkout platform.
Affirm provides a clear, predictable way to pay over time through buy now, pay later solutions. It is a remote-first company with a culture focused on honesty, trust, and customer-centric innovation.
Build foundational platform services for AI products, including user management, authentication, permissions, and resource access.
Own full-stack features end to end, from backend APIs to customer-facing dashboards and internal tools.
Work remotely with technical autonomy, collaborating across engineering and product teams on scalable systems.
They build foundational systems that power a suite of innovative AI products used by millions worldwide. They are a high-growth, AI-first engineering organization with an autonomous, low-bureaucracy culture.
Shape the technical foundation for money movement capabilities and unlock new product lines globally.
Guide the design and development of reliable, scalable, performant, and secure payment platform services.
Contribute directly to production code and proof-of-concepts, solving complex fintech challenges at massive scale.
Xero is a global cloud-based accounting software platform designed for small businesses. With thousands of employees worldwide, the company fosters a culture of technical excellence, inclusion, and continuous innovation.
Break down complex projects into tasks and deliver them in phases with your team.
Collaborate with product, design, and analytics to build scalable card experiences.
Support operations and on-call efforts, improving system reliability and availability.
Affirm is a financial technology company that offers clear, predictable pay-over-time solutions with no hidden fees. It is a remote-first company with a collaborative culture focused on transparency, flexibility, and employee well-being through comprehensive benefits.
Design, build, and maintain robust backend services and APIs at scale.
Collaborate with stakeholders to architect and deliver new services from inception to completion.
Work with engineering and product teams to shape roadmaps and uphold high engineering standards.
Sardine is the leading agentic risk platform for fighting financial crime, providing real-time fraud prevention and AML automation. The company is remote-first and values performance over hours, with a culture of self-motivated, high-growth individuals.
Collaborate closely with engineers, product designers, and product to perform experiments and test new ideas
Build performant, design-centric, reusable and usable interfaces that solve complex needs
Take operational responsibility for the components that you write
Abacum is the leading Business Planning solution that automates reporting, collaboration, and forecasting for finance teams. We are a global team of 100+ people across 30+ nationalities, backed by over $100M in funding, with a culture of customer obsession and tough love.
Design, develop, and maintain scalable back end services and APIs for Quanata's products.
Architect data flows, database schemas, and cloud infrastructure with a focus on reliability and security.
Mentor engineers and shape technical decisions across complex features from concept to deployment.
Quanata is a technology company in the State Farm family, building products and services for the financial and insurance sectors. It is a remote-first organization that values veterans, supports professional growth, and offers comprehensive benefits.
Design and implement backend systems for trust and safety at scale.
Collaborate with product, design, and analytics to ensure technical sustainability.
Foster a culture of quality through code reviews, design standards, and mentoring.
Affirm provides a clear, predictable way to pay over time with no hidden fees. It is a remote-first company with a focus on engineering excellence and scalable solutions.
Implement production backend features for payment flows.
Refactor legacy services, modernize APIs, and improve test coverage.
Collaborate with product managers and partner teams to deliver end-to-end solutions.
They build and operate scalable, revenue-critical payment infrastructure for modern fintech and billing systems. The organization works in a remote-first, contract-based model with a culture of agility, clean code, and async collaboration.
Work on core infrastructure powering Arbitrum, tackling distributed systems challenges and optimizing performance.
Collaborate with research, product, and blockchain engineering teams at the cutting edge of blockchain technology.
Establish backend architectural standards and drive technical roadmap for complex distributed systems.
Offchain Labs is a pioneer in blockchain scalability and security, building the Arbitrum stack that powers the leading Ethereum scaling solution. Backed by $124 million in funding, our team of thinkers and doers embraces new challenges and pushes boundaries.
Design, implement, test, and operate production services and APIs.
Lead projects or meaningful components of projects from problem definition through deployment and iteration.
Improve the observability and operability of the systems you own, including metrics, logs, traces, alerting, and incident learnings.
LaunchDarkly provides a platform that helps engineering teams release software and AI with speed, safety, and control using feature flags and observability. The company is growing and emphasizes teamwork, humility, openness, curiosity, and inclusive collaboration.
Break down larger projects into individual tasks and deliver them in phases while collaborating with your team.
Partner with product, design, and analytics to articulate technical constraints, assess trade-offs, and shape decisions.
Support system availability by creating and monitoring metrics, escalating issues, and participating in on-call efforts.
Affirm is a financial technology company offering point-of-sale installment loans and payment solutions that let consumers pay over time predictably. It is a publicly traded, remote-first company with a global engineering team and a culture centered on transparency, customer trust, and flexibility.
Design and scale backend data systems including PostgreSQL data models, Kafka-driven pipelines, and a GraphQL API.
Lead architecture for complex projects, weighing trade-offs and backing decisions with data.
Partner with product, science, and clinical teams to translate requirements into new integrations and services.
Beacon Biosignals is building at-home EEG platforms for precision medicine, supporting clinical development and diagnostics for neurological and sleep disorders. The company fosters a collaborative, remote-first culture with offices in Boston, NYC, and Paris, and values diversity and empathy.
Break down larger projects into individual tasks and deliver them in phases with support from your tech lead and manager.
Collaborate with product management, design, and analytics to make decisions that consider risks and trade-offs.
Support operations and availability of your team's artifacts by creating metrics and participating in on-call efforts.
Affirm is a financial technology company that provides transparent, flexible payment solutions. The company is remote-first and fosters a culture of care, transparency, and flexibility.
Take full ownership of backend features from design through production support.
Build and maintain integrations with KYC, geolocation, payment, and other external systems.
Implement observability, write tests, and support production with on-call rotations.
Fliff is a social gaming platform offering freemium sports, casino, and prediction games with real rewards. It is a multinational, close-knit team with offices across the US and Europe, focused on inclusion and innovation.
Own how money physically moves at Alt: ACH, RTP, wires, cards, stablecoin settlement, and the orchestration layer that routes between providers.
Build for 99.99% reliability on payment integrations, designing for retries, late returns, duplicate callbacks, and provider failover.
Shape the product consequences of payment rails, payout speed, risk controls, and high-value transaction safety across the marketplace.
Alt is unlocking the value of alternative assets, starting with the $5B trading-card market, by letting collectors buy, sell, vault, and finance their cards in one place. We are a remote-first team backed by leaders at Stripe, Coinbase, Seven Seven Six, and athletes like Tom Brady and Giannis Antetokounmpo.
Build and operate Python/Django services for repairs, payments, messaging, notifications, and fraud prevention.
Work in cross-functional product teams using AI-assisted, spec-driven development from design through delivery.
Ensure reliability and data integrity through automated testing, observability, security, and incident response.
Plentific is a property technology platform for housing providers, local authorities, and contractors in the UK and Germany. We are a growing London-headquartered team working across Europe to expand the platform and integrate AI.