Design and scale backend services powering Flex's core financial infrastructure, including payments, billing, and ledger systems.
Lead architecture of highly available, fault-tolerant financial platforms processing millions in transactions.
Partner with Product, Finance, Risk, Compliance, and Engineering teams to deliver scalable payment experiences.
Flex is a growth-stage FinTech company that creates the best rent payment experience, enabling users to pay rent on a flexible schedule. With unprecedented investor support and an enthusiastic user base, Flex fosters an inclusive culture with a diverse team across the US, Australia, Canada, and South America.
Design, develop, and scale backend systems powering payment, billing, and identity integrations.
Collaborate with product, design, and engineering peers to solve user problems around rent payment.
Own the full lifecycle of APIs from scoping to production rollout with minimal oversight.
Flex is a growth-stage FinTech company that creates the best rent payment experience, enabling users to pay rent on a schedule that fits their budget. They have strong investor backing and a growing user base, with a focus on building an inclusive culture.
United States
Unlimited PTO
20w maternity
20w paternity
Lead the design and architecture of large-scale, complex systems for banking and money movement.
Take ownership of major technical initiatives, driving alignment with customer needs and business goals.
Mentor and guide other engineers, fostering technical growth and excellence across the team.
Marqeta is a card issuing platform enabling embedded finance for companies like Block, Cash App, and Uber. They are a publicly traded company with a culture of flexibility and innovation.
Own the technical roadmap and author system designs for scalable, secure, and operationally efficient 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 provides a modern card issuing and payment processing platform. As a publicly-traded company, we foster a culture of flexibility and innovation, with a focus on engineering excellence and collaboration.
Design and build backend services in Golang that integrate with payment processors, gateways, and card networks.
Own critical money-movement flows end to end: authorization, capture, settlement, refunds, reconciliation, and chargeback/dispute handling.
Build idempotent, fault-tolerant, auditable transaction processing within a distributed architecture using patterns like transactional outboxes and queues.
Sezzle financially empowers the next generation with interest-free installment plans and cutting-edge fintech. The company is building an innovative, dynamic team passionate about transforming payments and retail.
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.
Define and maintain the technical direction for backend APIs and checkout experiences, ensuring high performance and security.
Act as a mentor for the engineering team, lead code reviews, and conduct performance reviews to uphold high standards.
Oversee integration of third-party payment providers and ensure compliance with data security standards.
Vivenu is a global leader in event ticketing technology, transforming ticketing for major events like the Grammys and Golden Globes. Backed by over $65 million in funding, the company operates six offices worldwide with over 160 professionals, fostering a diverse, merit-driven culture.
Design and build backend services for onboarding flows including KYB/KYC, document collection, and verification orchestration.
Contribute to frontend development for intuitive, responsive interfaces that simplify complex compliance processes.
Own integrations with external identity and verification providers, abstracting complexity behind clean internal APIs.
Clara is the fastest-growing B2B fintech company in Latin America, building the leading solution for companies to manage payments with corporate cards, bill pay, financing, and a B2B platform. Backed by top global and regional investors, Clara has a high-talent-density culture focused on ownership and innovation, serving over 20,000 businesses.
Design, build, and operate core billing platform services that scale to millions of users.
Implement new features and improve existing services using AWS, Kafka, and REST APIs.
Troubleshoot operational issues and enhance troubleshooting procedures and tools.
Twilio is a cloud communications platform that enables businesses to engage with customers through messaging, voice, and video. With hundreds of thousands of customers and a remote-first culture, they foster a global, inclusive environment where diverse teams collaborate to innovate.
Architect core backend infrastructure using Java/Spring Boot for secure, scalable payment processing across Latin America.
Optimize data performance and build React-based frontend applications to ensure seamless API consumption.
Leverage AI tools across the development lifecycle and mentor junior engineers through code and design reviews.
Clara is the fastest-growing B2B fintech in Latin America, providing corporate cards, bill pay, financing, and a B2B platform to over 20,000 businesses. The company is backed by top global and regional investors and fosters a high-talent-density, values-driven culture focused on clarity, ownership, and inclusivity.
Develop and maintain core systems supporting user accounts, payments, and APIs.
Integrate third-party services such as KYC/AML, foreign exchange, and banking aggregators.
Work closely with sales and engineering teams to design and implement solutions for customer needs.
Sphere Pay is a payment platform that provides APIs for managing user accounts and transactions. The company fosters an inclusive and diverse work environment with a focus on engineering excellence.
Build and scale the systems and services that form the foundation of Alpaca's global payments and treasury platform.
Operate in an industry where money movement is critical, using modern, event-driven, and highly scalable architectures.
Collaborate with a distributed team to design and implement solutions with autonomy, focusing on quality and resilience.
Alpaca is a US-headquartered self-clearing broker-dealer and brokerage infrastructure for stocks, ETFs, options, crypto, fixed income, and more. Our global team of 380+ members values curiosity, empathy, and accountability.
Provide senior technical leadership across multiple engineering teams, systems, and business domains.
Drive architecture, design, and implementation of scalable, reliable, and maintainable software systems.
Lead complex cross-functional technical initiatives from discovery through delivery and production operation.
Oportun is a mission-driven financial services company that offers intelligent borrowing, savings, and budgeting to help members build a better financial future. With over $21.3 billion in responsible credit provided, the company fosters a diverse, equitable, and inclusive culture where employees feel a sense of belonging.
Design and architect scalable, secure, and high-performance backend systems for Netomi's core platform.
Build and optimize low-latency applications capable of handling high-throughput workloads using Java, Spring Boot, and AWS.
Lead technical design discussions, mentor engineers, and drive engineering excellence across the team.
Netomi is the leading agentic AI platform for enterprise customer experience, helping global brands automate customer journeys. Backed by WndrCo, Y Combinator, and Index Ventures, they are a growing company focused on AI-driven innovation and engineering excellence.
Design and build scalable backend systems, APIs, and data pipelines for the vulnerability intelligence platform.
Own services end-to-end including architecture, development, deployment, and operation.
Lead technical design discussions and contribute to system architecture decisions while mentoring junior engineers.
VulnCheck transforms vulnerability intelligence by helping security teams act faster with more confidence. Founded in 2021, the company has a transparent, collaborative, and supportive culture with a fast-growing team of experts.
Setting and driving the technical strategy across the Partners engineering teams, from architecture decisions through to hands-on implementation.
Owning the design of core backend services for high-performance distributed systems, with scale and reliability as non-negotiables.
Acting as the technical authority on partner integrations — shaping how third-party PSPs connect with Primer's platform.
Primer is the unified infrastructure for global payments, giving finance teams visibility and control. We are backed by top investors and have a remote-first culture focused on impact.
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.
Design, build, and maintain JVM-based microservices (Java/Kotlin) on AWS ECS, App Runner, and Lambda, working with PostgreSQL, DynamoDB, and event-driven integrations.
Take full ownership of services from design to production, making architectural decisions and proactively identifying and fixing issues before they escalate.
Collaborate on API design and leverage AI-assisted development tools as part of your daily workflow.
Routescanner is the world's leading container logistics intelligence platform, helping shippers and cargo owners optimize intermodal container routes based on transit times, carrier reliability, and CO₂ emissions. We're a growing, lean company with a small, high-ownership engineering team that values trust, output, and clean code.
Lead the design and development of scalable backend services using Java and serverless technologies.
Architect RESTful APIs and event-driven systems for high-performance distributed applications.
Mentor junior developers and collaborate with cross-functional teams to deliver innovative solutions.
Turnitin is a recognized innovator in global education, partnering with educators and institutions for over 25 years to develop learning integrity solutions. With over 16,000 academic institutions and team members in over 35 countries, they foster a remote-first culture that empowers employees.
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.