Senior Backend Software Engineer - Payments at Dropbox

About Gusto Gusto supports over 400,000 small businesses nationwide by handling payroll, health insurance, 401(k) plans, and HR services. This work helps business owners focus on what matters most to them and their customers. With offices in Denver, San Francisco, and New York, Gusto aims to build a workplace that reflects the diversity of the communities it serves. Full-time employees receive competitive salaries, a comprehensive benefits package, and equity in the form of RSUs. Compensation varies by role, level, and location. Details about Gusto’s approach to rewards can be found on their Total Rewards philosophy page. AI plays a key role in daily operations at Gusto. Team members are expected to use AI tools relevant to their work and continue building their skills as technology evolves. The level of AI experience required depends on the position and will be assessed during the interview process. Role Overview: Staff Software Engineer – Payments & Risk Gusto is hiring experienced full-stack engineers for teams working on payments and risk platforms. These systems serve small business owners every day. Staff Software Engineers in this group work across the full lifecycle of payments or risk systems: shaping architecture early in design, building internal features and APIs, and maintaining performance after launch. The work includes engineering the core business engine, providing reliable backend services for product teams, and setting a high standard for engineering practices. Team Focus Areas Payments: The Payments team manages all financial transaction operations for Gusto’s products. This includes ensuring secure fund transfers among partners, employers, employees, and government agencies. Engineers on this team build new payment features for both U.S. and international markets and help redesign the payments platform to support future growth. Risk: The Risk team develops systems that protect Gusto and its clients from financial risks. This work shapes experiences that keep customers and the company safe. Location This role is based in San Francisco, CA (hybrid) or New York, NY (hybrid).

About PayJoyAt PayJoy, we are driven by our mission to empower under-served communities in emerging markets, enabling them to achieve financial stability and success. Our innovative secured credit technology serves as a gateway for new customers to access the credit system. With PayJoy’s point-of-sale financing and credit card solutions, we elevate our customers’ quality of life. Our offerings also enable micro-entrepreneurship, providing a safety net during challenging times. Leveraging advanced machine learning, data science, and anti-fraud AI capabilities, we have proudly served over 18 million customers as of 2025, all while maintaining profitability for sustainable growth.Role OverviewWe are seeking a Senior Staff Software Engineer to spearhead our technical infrastructure, initially partnering with the Money - Payments teams to foster innovation. This role offers the exciting opportunity to collaborate with various teams, take on a mentorship role, design scalable systems, and impact cross-functional initiatives. You will be actively involved in making critical technical decisions and developing essential services in a hands-on capacity.

Airbnb, founded in 2007, has revolutionized the way people travel by connecting over 5 million hosts with more than 2 billion guests worldwide. Our platform offers unique stays and experiences that foster genuine connections with communities around the globe.The Role:The Airbnb Payments team is dedicated to facilitating seamless monetary exchanges through user-friendly payment services, embodying our mission to 'belong anywhere.' We are constructing a premier payments platform capable of processing billions of dollars across 191 countries and 75 currencies through a complex network of payment partners. As we expand, we will be integrating new partners, licenses, compliance measures, and enhancing the payment experiences for both guests and hosts.As a Senior Staff Engineer and Technical Lead within the Payments Compliance organization, you will oversee the technical strategy and architectural vision across a comprehensive Compliance engineering landscape, which includes Policy Enforcement, Identity, Screening, Auditing, and Compliance Experience. Your focus will be to ensure the scalability and cohesion of compliance systems while aligning them with the broader objectives of the company in an increasingly complex regulatory environment.We seek a seasoned technical leader capable of bridging deep systems expertise with organizational influence. You will drive Compliance's strategic initiatives, defining component integration, identifying shared capabilities, and ensuring optimal use of platform investments made by partner teams. Your decisions will significantly impact Airbnb's compliance with obligations such as Anti-Money Laundering (AML), Know Your Customer (KYC), and sanctions screening, all while minimizing operational costs and enhancing customer experience.This role extends beyond the Compliance team, requiring collaboration with various engineering teams and cross-functional stakeholders across Product, Content, Legal, and Design.

About Owner.comOwner.com is revolutionizing the growth trajectory of local restaurants through advanced AI technology.Our AI solutions are meticulously designed to enhance SEO, marketing strategies, and online ordering processes, ultimately boosting first-party orders. Unlike other companies that burden small business owners with complex software, Owner.com provides a streamlined, expert-driven system that guarantees results.Think of us as your dedicated team of engineers and marketers, empowering independent restaurants to compete with larger chains.Our VisionInitially focused on helping independent restaurants thrive online, our mission extends to all local businesses facing similar challenges.In an era where massive tech corporations threaten local business survival, we are committed to leveling the playing field.Once we perfect our solutions for restaurants, our goal is to expand our services across various local business sectors.We envision a future where millions of local business owners leverage our technology to excel in the digital landscape.Discover our Series C memo here →Our TractionSince our inception in 2020, we have generated tens of millions in revenue and processed over half a billion dollars in online orders. One in five Americans has interacted with an Owner.com website.More significantly, we have supported over 20,000 restaurant owners, saving them close to $200 million in fees.Our TeamOur dynamic team, composed of top talent from renowned companies in the SMB software space, is poised for rapid expansion as we continue to grow alongside our customers.

Join our dynamic team at mercor as a Software Engineer specializing in Payments. In this role, you will play a crucial part in enhancing our payment systems, developing innovative solutions, and ensuring seamless transactions for our users. You will collaborate closely with product managers and fellow engineers to drive our payment technologies forward.

Join Discord, where over 200 million users connect each month for various reasons, with a significant focus on gaming. More than 90% of our users engage in gaming, collectively dedicating 1.5 billion hours monthly to an array of unique titles within our platform. Discord is pivotal in shaping the future of gaming, enhancing the experience for players to communicate and interact seamlessly before, during, and after gameplay.Be a part of our journey to redefine Discord’s business landscape! We are on the lookout for innovative engineers to join our exceptional Revenue team, driving Discord’s growth through the development of engaging paid products. These offerings enable us to scale our business while preserving the fundamental features of Discord as free, without relying on advertisements or compromising user data. You will be reporting directly to the Engineering Manager of Payments. For insights into Discord Engineering, explore our engineering blog!

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.

About AirwallexAirwallex is a revolutionary unified payments and financial platform tailored for global enterprises. Our innovative blend of proprietary infrastructure and software empowers over 200,000 businesses globally—including renowned names like Brex, Rippling, Navan, Qantas, and SHEIN—with seamlessly integrated solutions for managing business accounts, payments, spend management, treasury, and embedded finance on a worldwide scale.Founded in Melbourne, we boast a dynamic team of over 2,000 of the brightest minds in technology, spread across 26 offices worldwide. With a valuation of US$8 billion and backing from prestigious investors such as T. Rowe Price, Visa, Mastercard, Robinhood Ventures, Sequoia, Salesforce Ventures, DST Global, and Lone Pine Capital, Airwallex is at the forefront of shaping the future of global payments and finance. If you're eager to undertake the most ambitious challenge of your career, we invite you to join us.

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.

About GridwareGridware is an innovative technology firm based in San Francisco, committed to safeguarding and optimizing the electrical grid. We have pioneered a revolutionary grid management approach known as Active Grid Response (AGR), which emphasizes the monitoring of electrical, physical, and environmental factors that influence grid reliability and safety. Our cutting-edge AGR platform leverages high-precision sensors to identify potential issues early, facilitating proactive maintenance and fault prevention. This holistic strategy aids in enhancing safety, minimizing outages, and ensuring the grid operates with maximum efficiency. Gridware is supported by prominent climate-tech and Silicon Valley investors. For further details, please visit www.Gridware.io.Role OverviewWe are looking for a talented Staff Software Engineer to act as a pivotal technical force within our team, enhancing the overall software engineering capabilities through architectural innovation, mentorship, and fostering a culture of excellence. In this role, you will design and develop the essential software systems that drive Gridware's platform. This encompasses everything from backend services that oversee our distributed network of devices to the front-end interfaces that visualize grid health, fleet diagnostics, and real-time field events.Your responsibilities will span the entire technology stack, building and scaling systems that integrate hardware, firmware, and cloud infrastructure to enable dependable communication, fleet visibility, and expedited decision-making. This position offers significant ownership and impact, allowing you to influence how our technology supports and protects critical infrastructure at scale.

About BroccoliBroccoli is revolutionizing the $500 billion home services industry by developing an AI operating system designed to empower trades businesses such as HVAC and roofing. Our intelligent AI agents handle customer interactions, manage job bookings, and ensure every lead is effectively captured.With the backing of prominent venture capital firms and a successful $27 million Series A funding round, we are on an aggressive growth trajectory. Collaborating with top private equity-backed home service platforms, we anticipate expanding our team fivefold by 2026, presenting a unique opportunity to join us early and make a significant impact.Why Join Broccoli?As a Staff Engineer, you will be instrumental in establishing the technical backbone of Broccoli AI. Your responsibilities will include ownership of critical systems, influencing architectural decisions, and shaping our development and deployment processes on a large scale.Immediate Impact: Your contributions will directly enhance production systems, benefiting hundreds of customers.Category Creation: Play a pivotal role in defining a new category of AI-powered workforce within an expansive market.Speed & Ownership: Enjoy the advantages of a small team with rapid feedback loops and substantial decision-making authority.Founder Collaboration: Partner closely with experienced founders to drive product and technical vision.What You’ll DoDesign, develop, and scale backend systems and internal tools for our AI agent platform.Take ownership of essential APIs and integrations, including systems like ServiceTitan.Lead complex features from initial design through to production deployment.Enhance real-time voice capabilities, reliability, and intelligence of AI agents.Mentor fellow engineers and help implement best practices across the team.Balance speed and quality while scaling systems to accommodate live customer traffic.What We’re Looking For7+ years of experience in backend or full-stack engineering.Strong system design and architectural skills.Proven experience in deploying and maintaining production systems at scale.Ability to thrive in high-growth, ambiguous startup environments.A proactive approach with a strong execution mindset.

Join Carta's engineering team as a Staff Software Engineer, where you will play a crucial role in developing innovative solutions that enhance our platform. You will collaborate with cross-functional teams to design, implement, and maintain scalable systems, ensuring high performance and responsiveness to requests from the front-end.We're looking for a passionate engineer who thrives in a fast-paced environment and is excited about tackling complex challenges. If you are eager to contribute to cutting-edge technology and drive impactful projects, we want to hear from you!

Role overview The Staff Software Engineer position at Amplitude, Inc. is based in San Francisco, CA. This role centers on developing and enhancing software to broaden the platform’s features. Day-to-day work includes direct software development and frequent collaboration with colleagues from various teams. What you will do Design, build, and maintain scalable software applications that support the platform’s growth. Collaborate with product managers and designers to deliver features that address user needs. Mentor junior engineers and contribute to their technical and professional development. Review code and help improve engineering practices throughout the team. Stay current with emerging technologies and industry trends to guide technical choices.

Join our innovative team at Crusoe as a Staff Software Engineer. In this pivotal role, you will leverage your advanced software engineering skills to design, develop, and optimize cutting-edge solutions that enhance our technology stack. Collaborate with cross-functional teams to drive projects from concept to completion, ensuring high-quality deliverables that meet user needs and business objectives.

Flex is hiring a Senior Fullstack Software Engineer to join the Risk Engineering team. This position can be based in New York, San Francisco, or remote within the U.S. Role overview This role centers on designing, building, and maintaining applications that support Flex’s risk management efforts. The Senior Fullstack Software Engineer will collaborate closely with teammates to deliver solutions that improve how risk is assessed and managed across the company. What you will do Develop and maintain both frontend and backend components for risk-related applications Work with team members to design features and solve technical challenges Contribute to projects from initial planning through deployment Requirements Experience in both frontend and backend software development Ability to drive projects through the full development lifecycle Interest in building solutions that support risk management

Welcome to Adyen Adyen is a leading financial technology platform that integrates payments, data, and financial services into a single solution, catering to renowned clients such as Meta, Uber, H&M, and Microsoft. Our mission is to empower businesses by providing them with tools designed for ambition. We foster an environment where our employees can thrive, supported by a culture that encourages personal and professional growth. Our motivated teams tackle unique technical challenges collaboratively, delivering innovative and ethical solutions that accelerate business success. Position Overview: Payments Risk Operations Analyst We are seeking a skilled Analyst to join our Payments Risk Operations team. This role is perfect for professionals adept at navigating intricate cases, managing critical long-term projects, and harmonizing compliance with a customer-focused approach. In this position, you will play a vital role in supporting our sustainable business growth, ensuring alignment between Adyen and our clients with Payment Networks’ regulations and our internal risk appetite. You will serve as a strategic ally to our global clients, guiding them through the compliance landscape while proactively identifying and mitigating emerging threats within the payment ecosystem. Collaborating closely with our internal teams, including Compliance, Sales, Account Management, Product, and Partnerships, you will optimize processes and develop scalable solutions to safeguard our portfolio. By transforming complex requirements into actionable strategies, you will mitigate non-compliance losses and drive operational excellence. Ideal Candidate Profile The ideal candidate will possess strong analytical skills, a proven history of managing cross-functional projects, and the capability to scale complex operations in a dynamic environment.

Why Join AngelListAt AngelList, we tackle some of the most challenging issues in venture capital and private markets. Our team is driven by precision, urgency, and a vision for the future. If you're passionate about transforming the startup funding landscape, this is your opportunity.About AngelListOur mission is to fuel innovation by enhancing the success rate of startups globally. We achieve this by creating the financial infrastructure that facilitates investment in transformative companies. AngelList stands at the intersection of venture capital and the startup ecosystem, supporting over $171 billion in assets and facilitating investments in more than 13,000 startups, including over 300 unicorns. With 57% of premier U.S. VC deals involving AngelList investors, we are ambitious in our goals.If you are excited about shaping the future of private markets, we invite you to join our journey.About the Role: As a Staff Software Engineer for our Nova platform, you will be pivotal in defining and designing our development processes. You will be responsible for establishing the domain model and architectural patterns that will guide our engineering team. If you are a catalyst who can empower a team of eight to perform like a team of twenty by establishing clear patterns, embedding engineering context into our codebase, and driving vital initiatives forward, we want to hear from you.

About UsAt Imprint, we are revolutionizing the landscape of co-branded credit cards and financial products, making them smarter, more rewarding, and fundamentally brand-centric. We collaborate with esteemed brands like Crate & Barrel, Rakuten, Booking.com, H-E-B, Fetch, and Brooks Brothers to create innovative credit programs that enhance customer loyalty, unlock savings, and stimulate growth. Our sophisticated platform integrates cutting-edge payments infrastructure, intelligent underwriting, and a seamless user experience, enabling brands to offer impactful financial products without the need to become a bank.With co-branded cards accounting for over $300 billion in annual spending in the U.S., the majority are still managed by traditional banks. Imprint stands as the modern solution: agile, technology-driven, and tailored for today’s consumers. Supported by industry leaders like Kleiner Perkins, Thrive Capital, and Khosla Ventures, we are assembling a top-tier team to redefine payment methods and empower brand growth. If you're eager to work at a fast pace, tackle complex challenges, and make a significant impact, we want to hear from you.Discover more about us on Imprint's Technology Blog.Your RoleDesign and spearhead the development of secure, reliable, and scalable backend systemsProvide technical leadership and mentorship across diverse teams and projectsSet and advocate for coding standards, architectural principles, and technical vision within the engineering organizationCollaborate closely with product, design, and engineering leadership to align technical strategy with business objectivesDrive the continuous enhancement of system performance, scalability, and reliability to accommodate rapid growth and evolving business needsLead complex, high-impact projects from inception through deployment and ongoing optimizationEnhance developer experience through advanced tooling, comprehensive observability frameworks, and improvements in platform reliabilityMentor and nurture engineers through code reviews, design discussions, and technical guidanceContribute to the technical roadmap and identify innovative opportunities

Supported by prominent Silicon Valley investors, Peregrine Technologies empowers public safety organizations, state and local governments, federal agencies, and private-sector institutions to address societal challenges with unparalleled speed and precision. Our AI-driven platform transforms fragmented and isolated data into actionable operational intelligence, quickly surfacing mission-critical information to facilitate informed and timely decisions that enhance outcomes across various contexts. Currently, Peregrine serves hundreds of customers across more than 30 states and two countries, impacting over 125 million individuals—and we are amplifying our influence as we expand into enterprise markets and internationally.Our TeamAs an engineering team, we place a strong emphasis on empathy, believing it enhances our solutions. Understanding how users interact with our product is essential, and engineers will collaborate closely onsite to grasp the diverse use cases that Peregrine addresses.We are seeking a Staff Software Engineer to join our core engineering teams. In this role, you will collaborate cross-functionally with design and product management to develop robust, scalable, and user-centric systems. Our teams confront a variety of challenges, from enabling real-time user collaboration on intricate maps to constructing high-scale backend architectures capable of processing billions of data points.We value ownership and teamwork; you will take complete responsibility for significant features and work closely with fellow engineers to ensure successful completion. We believe that humility and empathy are vital for crafting the right solutions—you will work directly with our deployment team and users as we refine our offerings to meet their needs. Creativity and perseverance will be key to executing our vision.RoleWe are looking for a Staff Software Engineer to join our expanding team, lead impactful projects, cultivate an inclusive team culture, and steer technical decision-making.This position is ideal for someone who excels in both people management and hands-on technical leadership. You will build a high-performing team, guide them through complex technical challenges, and ensure their work aligns with our business goals. The ideal candidate will effectively mentor while upholding high standards in technical execution.You will drive significant work that delivers value to our customers, from supporting emergency responders during hurricanes to de-escalating intricate organized crime situations. We are developing innovative capabilities that enable...