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.
Develop core backend infrastructure for blockchain execution and Ethereum scaling.
Tackle distributed systems challenges involving reliability, performance, and scalability.
Strengthen security and drive projects from investigation through implementation.
They build foundational infrastructure for Ethereum scalability, security, and decentralized applications. They are a remote-first, globally distributed team collaborating across research, product, and blockchain engineering.
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.
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.
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.
Build powerful, user-friendly tools for enterprises to onboard, manage, and scale Hightouch deployments.
Architect scalable backend systems for roles, permissions, access control, and change management.
Help admins optimize warehouse performance and costs driven by Hightouch activity.
Hightouch is a data activation platform that lets enterprises sync data from their warehouses into business tools and manage customer data. The company is remote-first, works with large enterprise customers, and values impact, intellectual curiosity, and product-minded engineering.
Architect and evolve core control and context planes, including service registries, SLO enforcement, and automated canary releases.
Own the service chassis and golden path, maintaining multi-language Java/Python libraries, Helm charts, and deployment pipelines.
Drive reliability engineering practices, mentor engineers, and lead architectural strategy for distributed systems at production scale.
The company builds large-scale web data products and distributed engineering infrastructure for AI-driven workflows. It operates a remote-first, globally distributed engineering culture focused on reliability, autonomy, and technical excellence.
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 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.
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.
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.
Build and operate backend services that move data through GrowthLoop, from warehouse queries to downstream systems.
Improve event handling, query execution, and delivery, and support the product’s move toward real-time capabilities.
Participate in on-call rotation, fix reliability issues, and build shared tools that reduce repeated work.
GrowthLoop built the first composable CDP, helping marketers leverage live, first-party data from their cloud warehouse to launch highly targeted campaigns. It is a founder-led, remote-first startup with a flat, high-agency culture, partnering with brands like Google, Costco, and Ford.
You will design, develop, and maintain backend services powering Twilio Flex's high-scale TaskRouter system.
You will set technical direction for distributed systems, owning architecture for cross-team problems spanning multiple quarters.
You will raise the engineering bar through design review, code review, and mentorship of senior and mid-level engineers.
Twilio is shaping the future of communications by delivering innovative solutions to hundreds of thousands of businesses and empowering millions of developers worldwide. As a remote-first company with a strong culture of connection and global inclusion, we have a diverse team making a global impact each day.
Own and deliver quarterly technical goals for the Communications area, solving ambiguous problems in messaging infrastructure.
Design and scale reliable backend services for high-volume communications across multi-region, multi-tenant environments.
Collaborate with product, design, analytics, and engineering partners while mentoring teammates and supporting on-call rotation.
Affirm is a financial technology company providing a clear, predictable way to pay over time with no hidden fees. It is a remote-first organization focused on care, transparency, and flexibility, with fully subsidized health coverage and flexible time off.
Own technical design and execution for major products, systems, and engineering initiatives.
Design scalable, reliable systems across backend, frontend, APIs, databases, and infrastructure.
Lead technically critical initiatives and mentor engineers across teams while staying hands-on.
BJAK builds technology products used by millions of users across Southeast Asia. It is a fast-moving, distributed international team working across multiple countries and time zones.
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 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.
Architect and develop reliable, scalable backend services for a business-critical energy trading platform.
Leverage AI-assisted coding tools and TDD to accelerate delivery while maintaining high engineering standards.
Mentor engineers and collaborate with product and frontend teams to shape architectural decisions.
The company develops a business-critical energy trading platform with demanding reliability and scalability requirements. They embrace an AI-first engineering culture and offer fully remote work with opportunities for mentorship and technical ownership.