Senior Software Engineer - Fullstack

About Our TeamAt OpenAI, our Applied team is dedicated to responsibly harnessing state-of-the-art technology for the benefit of society. We have pioneered transformative products like ChatGPT, DALL·E, and comprehensive APIs for GPT-4 and GPT-3, along with advanced embeddings and fine-tuning capabilities. Our team also oversees extensive inference infrastructure that supports our broadening impact.Our clients leverage our APIs to build innovative businesses, unlocking features that were previously beyond reach. ChatGPT serves as a testament to the immense possibilities we offer. We emphasize the ethical application of our powerful tools, prioritizing secure deployment over unfettered growth.Within the Applied Engineering sector, the Financial Engineering team is pivotal in ensuring effective monetization of our products to cater to diverse customer requirements. Working in close tandem with the Go-To-Market and Finance teams, we aim to adapt our billing infrastructure to meet our changing internal needs. We are on the lookout for a seasoned engineer to design and enhance our billing systems, improving their functionality to accommodate our increasingly intricate and expansive product portfolio.Key Responsibilities:Design and develop the next generation of billing and monetization systems at OpenAI.Implement solutions across the tech stack to establish robust billing integrations for our ChatGPT and API clientele.Craft a flexible billing platform supporting both subscription and usage-based models, ensuring it is scalable and enterprise-ready.Develop tools that allow internal teams to effortlessly integrate billing data into their operations.Engage collaboratively with a diverse range of stakeholders, including Product, Data, Finance, and Go-To-Market teams, alongside fellow engineers.Ideal Candidate Profile:A minimum of 5 years of professional software engineering experience; expertise in payments, billing, or monetization is a plus.A passion for collaborating with various partners, especially those beyond the engineering domain.A strong desire to learn and grow, with the ability to convey knowledge clearly to others.Demonstrated experience in developing and refining production systems to enable new product features and tackle scaling challenges.Exceptional problem-solving abilities and a proactive approach to tackling complex challenges.

Slash Financial creates tailored financial infrastructure for businesses in a variety of sectors. The company blends the reliability of traditional banking with high yields, strong rewards, and security, while offering features that help clients operate more efficiently and profitably. Founded in 2021, Slash Financial processes over $10 billion in business transactions each year. The company recently secured $100 million in Series C funding led by Ribbit Capital, with additional backing from Khosla Ventures, Goodwater Capital, NEA, and Y Combinator. This investment supports ongoing product development and expansion into new markets. Headquartered in San Francisco, the team emphasizes in-person collaboration at the office. Role overview The GTM Engineer will join a group dedicated to building a financial platform for complex, global businesses. This position involves close work with customers and the sales team, contributing at every stage from initial discovery to implementation and ongoing support. Direct client interaction is a key part of this job. Insights gathered from these engagements shape solutions and help transform custom work into platform features that serve thousands of businesses. This is a hands-on, customer-facing position. GTM Engineers write code, tackle technical challenges, and take responsibility for outcomes. Location This position is based onsite at the San Francisco office.

Are you ready to challenge your limits and embrace your potential?At Coinbase, we are dedicated to enhancing economic freedom across the globe. This is an ambitious mission that requires our utmost commitment as we develop the future of the global financial system through our innovative on-chain platform.We’re searching for a unique individual who is not only passionate about our mission but also believes in the transformative power of cryptocurrency and blockchain technology to revolutionize the financial landscape. If you are driven to make a meaningful impact, thrive in high-pressure environments, and value constructive feedback, we want you on our team to tackle our most complex challenges.Our work culture is intense and might not be suitable for everyone. However, if you aspire to create the future alongside exceptional professionals who demand excellence, there is no better place to grow.While many roles at Coinbase are designed to be remote-first, we are not exclusively remote. In-person collaboration is encouraged throughout the year, with regular team and company-wide offsite events to enhance teamwork, connection, and alignment. Your participation is anticipated and fully supported.About the Team:Our Financial Engineering team is responsible for establishing Coinbase's financial data and reporting infrastructure, ensuring accurate, timely, and verifiable financial operations. Collaborating closely with Finance, Accounting/Controllership, Treasury, and Product Engineering, we guarantee that financial data is comprehensive, reconciled, and traceable, supporting essential workflows such as month-end closing and large-scale reporting.Key Responsibilities:Develop new services using Golang to address critical product and business requirements.Design scalable systems that solve unique problems utilizing cutting-edge cloud technology and industry best practices.Articulate a long-term vision for the maintenance and scaling of our backend systems and the teams managing them.Collaborate with engineers, designers, product managers, and senior leadership to translate our product and technical vision into a concrete roadmap each quarter.Produce high-quality, well-tested code that meets customer needs.

Slash Financial is building financial infrastructure for businesses, combining the reliability of established banking with features tailored for modern companies. Since its founding in 2021, the company has handled over $10 billion in annual business transactions and recently secured a $100M Series C funding round. The team operates from its San Francisco headquarters and values in-person collaboration. Role overview This Software Engineer role sits within the stablecoin and on-chain infrastructure team. The focus is on building and scaling systems that power stablecoin payments and global account offerings. With the launch of stablecoin payments already reaching $3B in annualized volume, the team is expanding the Global USD Account, which allows businesses in more than 130 countries to access U.S. dollar transactions through Slash’s proprietary stablecoin, USDSL. Key responsibilities include developing the Global USD Account, improving global account features, optimizing stablecoin payment flows, and refining the stack behind the Global Card. The Global Card lets customers spend their stablecoin balance anywhere Visa is accepted. What you will do Develop and enhance the Global USD Account for international business users Optimize stablecoin payment systems and transaction flows Refine the technology stack for the Global Card product Work on integrating on-chain infrastructure with traditional banking systems Location This position is based in the San Francisco office. The company emphasizes a vibrant, in-person work culture.

Slash Financial creates business banking solutions that address real operational needs. By combining the dependability of traditional banks with features tailored to specific industries, the company helps businesses operate more efficiently and profitably. Founded in 2021 and headquartered in San Francisco, Slash Financial processes over $10 billion in business transactions each year. After raising $100 million in Series C funding led by Ribbit Capital, with participation from Khosla Ventures, Goodwater Capital, NEA, and Y Combinator, the company is expanding into new markets and product lines. A strong in-person culture is central to the team at the San Francisco headquarters. Role overview Slash Financial is seeking a Senior or Staff Software Engineer for its product engineering team in San Francisco. This position focuses on shaping the core banking product that handles $10 billion in annual transaction volume. The work combines infrastructure expertise with product development to deliver reliable, user-facing financial tools for a wide range of business customers. What you will do Take ownership of major product areas from start to finish, including designing database schemas, creating APIs, and building user interfaces. Develop and enhance core financial infrastructure such as payments, transfers, invoicing, bill pay, onboarding, and card management, supporting tens of billions in annual transactions. Design data models, manage migrations, and build backend services for complex, multi-step financial workflows. Collaborate with product, design, and compliance teams to launch features that are both user-friendly and compliant with regulations. Help define engineering standards, participate in architecture reviews, and engage with customers to inform development priorities. Requirements Demonstrated experience shipping and owning complete product areas, from data modeling through deployment. Strong full-stack engineering skills, with comfort working across both front-end and back-end systems. Location This role is based onsite at the San Francisco office. In-person collaboration is an important part of the company culture.

Join our innovative team at Discord as a Senior Software Engineer focused on our Financial Platform. In this pivotal role, you will design, develop, and enhance our financial systems, ensuring they are robust, scalable, and efficient. You will work closely with cross-functional teams to implement cutting-edge solutions that empower our users to manage their financial interactions seamlessly.

Adyen is looking for a Senior Software Engineer to join the Financial Products team in San Francisco. This role focuses on designing and building software that supports a wide range of clients and business needs. The main objective is to create reliable systems that process financial transactions quickly and securely. Role overview This position centers on developing software solutions for Adyen’s financial products. The work involves building systems that handle sensitive transactions, ensuring both efficiency and security remain top priorities. What you will do Design and implement software tailored to financial products Develop transaction processing systems with a focus on speed and security Collaborate with teams across various functions to deliver effective solutions Contribute to keeping Adyen’s financial offerings innovative About Adyen Adyen is a global payments company that works with businesses around the world. The team values collaboration, technical skill, and ongoing improvement in financial technology.

Slash Financial develops business banking infrastructure tailored for modern companies. The team blends the dependability of traditional banking with features that help businesses operate more efficiently and stay ahead in their markets. Since its start in 2021, Slash Financial has grown quickly, now processing over $10 billion in annual transactions across various industries. Backed by a recent $100M Series C led by Ribbit Capital and supported by Khosla Ventures, Goodwater Capital, NEA, and Y Combinator, the company is focused on expanding its product offerings and scaling operations. The company values in-person teamwork and maintains a hands-on culture at its San Francisco office. Role overview As an Applied AI Engineer at Slash Financial, you will join Slash AI Labs, a team dedicated to integrating AI throughout the company’s financial platform. This early-stage role shapes the direction of Slash’s AI capabilities, focusing on building production-ready AI systems within a rapidly evolving fintech environment. What you will do Develop and release full-stack AI features, including prompt engineering, agent orchestration, React interfaces, and API integrations. Enhance the agent runtime by improving orchestration, tool execution, MCP servers, graph-driven conversation states, and context compaction. Design agent experiences for web, Slack, and API-based user interactions. Create internal AI tools such as model evaluation frameworks, prompt management systems, and utilities for LLM observability. Work directly with Anthropic and OpenAI APIs, the Vercel AI SDK, and Slash’s custom orchestration layer to address tool-calling and multi-step reasoning challenges. Scale and optimize AI infrastructure, including inference routing, model tiering, prompt caching, and streaming on AWS/EKS. Requirements Experience deploying full-stack AI products in production. Strong understanding of AI technologies and frameworks. Background in orchestration and management of AI models. Ability to design applications that function across multiple platforms and interfaces. Strong problem-solving skills and comfort working in a changing environment. Location This position is based onsite at the San Francisco office.

Slash Financial develops business banking infrastructure tailored for real operational demands. Since its founding in 2021, the company has processed over $10 billion in annual business transactions across several industries. With $100M in Series C funding from investors including Ribbit Capital, Khosla Ventures, Goodwater Capital, NEA, and Y Combinator, Slash continues to grow its product offerings and market presence. The San Francisco headquarters fosters a collaborative, in-person work environment. Role overview The Senior Infrastructure/Platform Engineer will take a hands-on role in scaling and strengthening the core platform behind Slash’s banking products. This position involves designing, building, and maintaining infrastructure to support rapid company growth and high transaction volumes. The work spans AWS cloud operations, Terraform, Kubernetes, and related systems. This engineer will help shape infrastructure strategy and make key decisions on performance, observability, security, and deployment. What you will do Lead the development of next-generation database, real-time workflow, and container orchestration infrastructure. Scale and enhance the Kubernetes (EKS) platform, CockroachDB clusters, Kafka (MSK), Temporal workflows, and ElastiCache Redis. Collaborate with engineering teams to establish and scale best practices using AWS ALB, WAF, Route 53, OpenSearch, S3, and Vercel. Create and maintain abstractions in Terraform and Pulumi to streamline architecture and assist product teams. Improve the speed and reliability of CI/CD pipelines. Tackle complex scaling, performance, and low-latency challenges within a monolithic architecture. Location This role is based in the San Francisco office and supports an in-person work culture.

Join us at Adyen as a Staff Engineer specializing in Financial Products, where you will play a critical role in shaping the future of payment solutions. As part of our dynamic team in San Francisco, you will leverage your engineering expertise to develop innovative financial products that enhance our clients' experience.

At Ripple, we are on a mission to revolutionize the financial landscape, enabling the seamless movement of value akin to the flow of information today. Our innovative crypto solutions cater to financial institutions, businesses, governments, and developers, enhancing the global financial system while fostering greater economic fairness and opportunities for individuals worldwide. Join us and experience unparalleled career growth alongside supportive colleagues.If you are eager to witness your impact and unlock amazing career advancement opportunities, we invite you to join us in creating real-world value.THE WORK:As a Senior Software Engineer at Ripple, you will play a crucial role in establishing trust from the very first interaction, as we develop the Internet of Value to facilitate rapid money transfers. Your responsibility will be to construct the foundational platform for our global network, serving as the

At Plaid, we're reimagining the future of financial interactions. Join us in our mission to empower developers and enhance the financial lives of millions. As a Senior Backend Software Engineer, you will play a pivotal role in creating robust tools that streamline how users connect their financial accounts to various applications. Collaborate with industry leaders and contribute to a network that spans over 12,000 financial institutions across North America and Europe. You’ll be instrumental in driving innovation and excellence in our engineering practices while working alongside a talented team committed to making a real impact in the financial landscape.

Join Anthropic as an Engineering Manager for our Verticals team, focusing on Financial Services. In this pivotal role, you will lead and mentor a talented group of engineers to design and implement cutting-edge solutions that enhance our offerings in financial technology. Your expertise will guide the team in navigating complex challenges and driving innovation to improve user experience and operational efficiency.

Join Condor Software as a Full-Stack Platform EngineerAt Condor, we are revolutionizing the financial infrastructure that supports clinical development. With billions invested annually in discovering and developing new therapies, we strive to connect clinical operations and finance into a cohesive system. By integrating real-time financial intelligence, we empower R&D and finance leaders with the tools they need to make informed, high-stakes decisions.We are an AI-driven, pharma-native infrastructure provider, scaling industry standards in collaboration with top-tier partners. Our platform facilitates prediction, control, and execution in the most complex R&D environments worldwide.The Importance of Your RoleHaving established ourselves as a trusted partner for enterprise teams, we are now focused on the challenging task of scaling our platform to meet increasing demands. As a rapidly growing company, backed by prominent investors like Felicis and 645 Ventures, this is a unique opportunity to contribute to the foundational infrastructure that will redefine how therapies reach patients.Your ResponsibilitiesAs a Full-Stack Platform Engineer, you will be pivotal in building and scaling the core platform that supports the financial intelligence infrastructure relied upon by leading biopharma companies. This role encompasses critical engineering tasks at the intersection of backend systems, cloud infrastructure, and intelligent automation, with a strong emphasis on reliability and scalability.Your primary focus will be on backend architecture, where you'll design and implement services that drive complex financial and operational workflows. You'll be instrumental in shaping data flow, workflow orchestration, and enabling emerging AI-driven capabilities. This role goes beyond simple integration; you'll be crafting robust primitives that support other teams as our product and customer base expand.Working as a core member of a cross-functional product team, you will closely collaborate with product managers, designers, quality engineers, and data specialists to transition features from concept to production. While backend expertise is crucial, you will also engage across the stack to ensure the platform's capabilities are effectively leveraged.

Join Gusto as a Principal Software Engineer in our Money Group, where you will play a pivotal role in transforming the way businesses manage their finances. You will lead a team of talented engineers, driving innovation and excellence in our software development processes. Your expertise will help shape our product offerings, ensuring they are both robust and user-friendly.In this role, you will collaborate closely with cross-functional teams, including product management and design, to deliver high-quality software solutions. You will be responsible for architectural decisions, mentoring junior engineers, and fostering a culture of continuous improvement.

About CondorAt Condor, we are committed to transforming the financial infrastructure of clinical operations and finance. Every year, substantial investments are made in discovering and developing new therapies, yet the tools and data supporting these efforts often remain fragmented and disconnected. Our mission is to bridge this gap.We are pioneering a real-time intelligence layer that seamlessly integrates clinical operations, vendor activities, and financial signals. As a result, R&D and finance leaders gain unprecedented control over their organizational operations, making informed decisions with confidence.Our platform is rooted in AI-driven technology tailored for the pharmaceutical industry, built to scale with the standards established in collaboration with leading partners in the field. We empower organizations to enhance their prediction, control, and execution capabilities in the most complex R&D environments globally.The Importance of Our WorkHaving established trust among enterprise teams to manage critical operations and finance, we are now faced with the challenge of scaling our solutions. This pivotal phase is where our efforts will shape the future of clinical development.Condor is experiencing rapid growth, supported by prominent institutional investors like Felicis and 645 Ventures, and is becoming integral to the operations of Top 200 biopharma companies. This role represents a unique opportunity to contribute to the foundational infrastructure that will redefine how therapies are brought to market.Role OverviewThe Vice President of Engineering at Condor is a vital leadership position responsible for establishing the engineering operating system behind a platform that our customers will increasingly view as essential. This role transcends mere maintenance; it is about innovating and enhancing how we deliver products with agility and precision.In this position, you will collaborate closely with the CEO and other cross-functional leaders to convert company priorities into actionable plans. You will take on hands-on responsibilities typical of early-stage leadership, from resolving production issues to making architectural decisions, while also building a scalable team and processes.This is an opportunity for an engineering leader seeking genuine ownership and influence, with the chance to create a resilient engineering function during a critical juncture in our growth.Key ResponsibilitiesDevelop and Direct the Engineering Operating System: Design and implement frameworks and processes that ensure reliability and efficiency.Team Leadership: Recruit, mentor, and develop a high-performing engineering team.Cross-Functional Collaboration: Work with product management and other departments to align engineering efforts with company goals.Strategic Technical Decisions: Make informed architectural choices that support product scalability and performance.

Join Our Dynamic Payments TeamAt OpenAI, we are on a mission to ensure the financial sustainability of Artificial General Intelligence (AGI). Our Payments Team is pivotal in enabling OpenAI to facilitate transactions across our innovative products, including ChatGPT, ChatGPT for Teams, and our API services. We are responsible for crafting a seamless user payment experience, integrating with leading payment service providers, and developing the foundational infrastructure that supports efficient checkout and payment processes. Collaborating closely with Finance, Legal, Growth, Product, and external partners, we ensure our payment systems scale seamlessly with our business and adapt to evolving commercial objectives.Your Role in Our TeamAs a Senior Software Engineer within the Payments Team, you will be instrumental in designing and building the robust infrastructure that underpins OpenAI’s financial systems. You will work hand-in-hand with cross-functional teams to deliver scalable and efficient solutions, ensuring that our payment systems can support rapid product iterations and a global customer base. We seek individuals who are pragmatic, collaborative, and excited about the chance to develop systems that are vital to OpenAI’s long-term objectives and sustainability.This position is located in San Francisco, CA, with a hybrid work model that requires three days in the office each week. We also offer relocation assistance for new hires.Key Responsibilities:Design, implement, and scale core payment infrastructure.Develop robust financial primitives to facilitate rapid iteration and support our hyper-growth trajectory.Work closely with internal and external stakeholders (e.g., Finance, GTM, Product) to translate business needs into scalable technical solutions.Take ownership of shipping changes in the highly regulated payments domain.Create a smooth and user-friendly checkout experience for customers worldwide.Enhance the reliability, observability, and auditability of OpenAI's financial transactions.Ideal Candidate Profile:5+ years of professional software engineering experience, preferably with a focus on scalable payments or financial systems.Familiarity with payment processors such as Stripe, Adyen, or Braintree, or experience building similar internal financial systems, including cardholder data management and online commerce solutions.Possess a strong product mindset and a desire to craft solutions that meet real-world needs.

Join Us in Building a Safer Financial Future.At TRM Labs, we are at the forefront of blockchain analytics and AI solutions, dedicated to empowering law enforcement, national security agencies, financial institutions, and cryptocurrency businesses in their fight against crypto-related fraud and financial crime. Our innovative platforms provide critical intelligence, enabling our partners to trace funds, identify illicit activities, and build robust cases to enhance security across the financial landscape.We are seeking a talented and experienced Senior Frontend Engineer to become an integral part of our rapidly expanding Frontend Engineering team. This team is tasked with designing and developing high-performance product features that analyze blockchain transaction activity on an unprecedented scale. As an early member, you will play a key role in shaping our technology and driving our mission to create a safer financial ecosystem for billions around the globe.Your Contributions Will Include:Developing a large-scale web application that efficiently manages billions of transactions using React and Redux.Collaborating with Backend Engineers, Designers, and Product Managers to build and launch innovative features.Identifying and resolving performance bottlenecks to ensure optimal user experience.Participating in code and design reviews to uphold high standards of quality.Gaining a deep understanding of cryptocurrency and blockchain technologies to inform product direction.Working closely with product leads and clients to define and develop a new category of enterprise software.Keeping abreast of the latest frontend best practices and technologies.

Join Airwallex as a Staff Software Engineer, ScaleAt Airwallex, we are redefining the landscape of global finance with our comprehensive payments and financial platform tailored for businesses worldwide. With our cutting-edge proprietary technology, we empower over 200,000 organizations—including industry leaders like Brex, Rippling, Navan, Qantas, and SHEIN—to manage everything from business accounts to payments and treasury solutions.Founded in Melbourne, our dynamic team of over 2,000 innovators operates from 26 offices globally. Valued at US$8 billion and backed by top-tier investors such as T. Rowe Price, Visa, Mastercard, and Sequoia, we are at the forefront of building the future of global banking. If you're eager to tackle ambitious challenges and make a significant impact, we invite you to join us.