Software Engineer - Billing at fal | San Francisco

Join fal as a Software Engineer and play a crucial role in developing the next generation of usage-based billing systems. This is an exciting opportunity for individuals who are enthusiastic about designing scalable, event-driven systems that seamlessly integrate with Stripe and Orb, enabling real-time usage tracking and delivering precise, adaptable billing experiences for our clients. In this position, you will collaborate closely with cross-functional teams, including Product, Finance, and Infrastructure, to ensure our billing system is reliable, accurate, and capable of accommodating evolving pricing models as our product offerings expand.

At fal, we are revolutionizing generative-media infrastructure, empowering users to transform raw creativity into polished experiences within minutes. As we experience rapid growth, we are seeking a Growth Engineer who can seamlessly merge agile engineering skills with a product-oriented growth mindset—someone capable of delivering code in the morning and forging partnerships over coffee in the afternoon. Why This Role is Crucial This position places you at the crossroads of engineering, product development, and go-to-market strategies. Your innovative prototypes, experiments, and engaging content will serve as the initial interaction for creators, studios, and Fortune 500 innovation teams. A successful execution of your role will be reflected in the company's performance metrics and dashboards. Your Responsibilities Quickly develop lightweight client libraries, demo applications, or event microsites. Conduct data-driven experiments by segmenting cohorts, designing A/B tests, and automating reporting. We maintain a clear, metric-focused view of acquisition costs and activation rates for every segment. Create compelling blog posts, tweets, and teardown threads devoid of “AI slop.” Your content will consistently attract qualified sign-ups and ignite industry discussions. Manage customer interactions: Engage with prospects, troubleshoot their initial calls, and represent fal at meetups and hackathons, leaving prospects impressed with your understanding and speed of execution. Identify high-impact challenges, implement time-boxed solutions, and deliver results. After onboarding, you will propose your own roadmap, and we are inclined to support your initiatives. You May Be a Great Fit If You... Can code at lightning speed. You are fluent in Python and JavaScript (Next.js, React) and can integrate APIs, CLIs, and scrapers before lunch. Thrive on metrics. You utilize SQL, Amplitude/Looker, or plain-text CSVs to derive insights swiftly. Possess persuasive writing skills. Your copy is engaging, helpful, and opinionated, driving clicks. Enjoy interacting with people as much as coding. You are energized by demos, direct messages, and in-person events. Seek ownership. You find excitement in tackling ambiguous problems and starting from a blank slate. Are passionate about generative media. You keep up with the latest diffusion papers for fun and have strong opinions on video model architectures. Preferred Qualifications Prior experience in product-led growth (PLG) or developer-tool startups. Familiarity with growth analytics stacks.

fal is at the forefront of developing the most rapid and scalable infrastructure for AI inference. Our fal Serverless platform powers over 1,300 endpoints on the fal Marketplace, efficiently managing tens of millions of requests daily across various production workloads. Enterprises leverage fal Serverless to seamlessly deploy, operate, and scale custom AI models without the burden of infrastructure management. Our platform excels in autoscaling, observability, and operational efficiency, all handled through fal’s intuitive UI. Initially designed as internal infrastructure to support fal’s own scale, Serverless was publicly launched for enterprise clients in early 2025 and has since evolved into a core revenue-generating product experiencing rapid adoption. As one of the fastest-growing AI startups, fal has reached Series D funding with a valuation of $4.5 billion, all while maintaining a lean team of approximately 70 employees. Joining us means becoming an early member of a dynamic team where your contributions directly influence a foundational product.

Join fal as an experienced Enterprise Product Manager, where you will spearhead our enterprise product initiatives. Collaborate closely with large-scale clients to understand their unique needs, influence pricing strategies, and define essential features tailored for organizational use cases.

fal is seeking a Business Development Representative (BDR) based in San Francisco. This role centers on generating new business, building relationships with clients, and collaborating with both sales and marketing teams to help drive growth. Key responsibilities Find and pursue new business opportunities in the San Francisco area Develop and maintain strong connections with clients Partner with sales and marketing colleagues to achieve growth goals What fal values Drive to succeed in sales and business development Clear communication and the ability to build client rapport Interest in supporting fal's market expansion

At fal, we are revolutionizing the infrastructure for AI inference with our cutting-edge Serverless platform. Currently supporting over 1,300 endpoints on the fal Marketplace, our system processes tens of millions of requests daily across various production workloads. Enterprises leverage fal Serverless to effortlessly deploy, operate, and scale their custom AI models without the burden of managing infrastructure. Our platform takes care of autoscaling, observability, and operational complexities, providing a smooth user experience through our intuitive UI. Launched in early 2025, our Serverless infrastructure, initially developed to meet fal's internal scaling needs, has quickly evolved into a core revenue-generating product with exponential growth in adoption. As one of the fastest-growing AI startups, fal has achieved a Series D funding round with a remarkable valuation of $4.5 billion, all while maintaining a lean and agile team of approximately 70 employees. Joining us now means gaining significant ownership and making a direct impact on a foundational product.

At fal, we are crafting the foundational infrastructure for the generative AI era. Our mission is to empower developers and enterprises to effortlessly create, deploy, and scale multimodal AI applications with unparalleled speed, simplicity, and reliability. By merging high-performance inference, orchestration, and observability into a single cohesive platform, fal enables organizations to introduce innovative AI products without the burden of managing complex infrastructures.With swift adoption across various industries and a market poised for explosive growth projected to reach hundreds of billions in the coming decade, fal stands uniquely positioned to play a pivotal role in the next wave of AI innovation.About The Rolefal is transforming the creative technology stack for the Generative Media age. We are on the lookout for a dynamic Commercial (Mid-Market) Account Executive to join our expanding team and assist clients in harnessing the power of AI for media generation, automation, and scalability.If you excel in high-energy environments, enjoy collaborative work, and are driven by the desire to help companies innovate through technology, this role presents an exhilarating chance to be part of the future of AI infrastructure.Technologies You'll UseSalesforce, Outreach, Gong, Clari, Apollo, fal Console.Your ResponsibilitiesIdentify and engage with target mid-market accounts to generate qualified opportunities and ensure consistent pipeline growth.Utilize marketing-generated leads alongside outbound strategies to create demand for fal’s Generative Media infrastructure.Collaborate with creative studios, AI innovation teams, and AI developers to uncover new adoption opportunities.Execute each sales cycle meticulously: conduct discovery sessions, lead product demonstrations, align with executives, and deliver business outcomes that enhance long-term customer value.Develop a robust understanding of fal's Generative Media platform, its technical framework, and its value across various industries.Implement strategic campaigns to promote customer adoption and expand usage within accounts during the initial 6–12 months post-sale.Accurately forecast and manage pipeline utilizing MEDDPICC and Command of the Message methodologies.Work cross-functionally with marketing, product, and engineering teams to gather insights and inform go-to-market strategies.Adapt and excel in a rapidly evolving market, continually learning and innovating to meet customer demands.What We’re Looking ForExperience in sales, particularly in a technology-focused environment, is preferred.

We are seeking a talented Applied Machine Learning Engineer with a comprehensive understanding of the generative media landscape. You should possess an up-to-date knowledge of emerging methodologies and be capable of identifying gaps in the current market. Your role will involve innovating and developing machine learning models that enhance user experiences, requiring both novel training techniques and the fine-tuning of existing models with fresh datasets.

This position is perfect for engineers who excel in navigating complex distributed systems and possess extensive experience with backend APIs, relational databases, and event-driven architectures. Join us in developing high-performance, dependable solutions across cloud-native platforms and a global infrastructure at a rapidly expanding, commerce-driven company.

About Sentry Sentry helps developers build better software. With over $217 million raised and more than 100,000 organizations, including Disney, Microsoft, and Atlassian, using our platform, we focus on performance and error monitoring that lets teams spend more time building and less time fixing bugs. We work in a hybrid model from our San Francisco hub, with in-office collaboration on Mondays, Tuesdays, and Thursdays. Our tools support companies as they scale, and our team is committed to improving the digital experience for everyone. About the Billing & Revenue Engineering Team This group sits at the intersection of product, finance, and infrastructure. The team ensures every observable event, errors, logs, traces, and session replays, is measured, priced, and billed accurately. Their work directly impacts Sentry’s revenue and customer trust. Success here requires deep experience with distributed systems, a sharp eye for financial accuracy, and a solid grasp of how customers use the product. Collaboration is central. The team works closely with product, engineering, BizOps, marketing, and sales to create systems that support new products and pricing strategies. Role Overview: Senior Software Engineer - Billing This position focuses on building and scaling the core systems behind Sentry’s billing infrastructure. The goal: deliver accuracy and reliability at a large scale. What You’ll Do Work on the next-generation usage tracking pipeline, handling hundreds of billions of events each day with low latency and financial-grade precision. Design flexible pricing models, from per-event billing to complex enterprise contracts, that allow product and sales teams to experiment quickly while maintaining revenue accuracy and speeding up new launches. Help make technical decisions about billing-specific data consistency, including managing delayed events, retroactive pricing changes, and reconciling distributed counts across our infrastructure. What Makes This Role Rewarding Work on hard problems that are easy to describe but tough to solve, all in service of a smooth and accurate experience for Sentry’s customers.

Join our dynamic team as a Billing Coordinator, where you will play a vital role in ensuring accurate billing and collections. This position reports to the Billing Supervisor and involves entering charges, billing patients and insurance companies efficiently to maximize payment collections.

Join Baseten as a Software Engineer focused on Billing and Internal Tooling, where you will play a crucial role in developing and enhancing our internal systems. You will collaborate with cross-functional teams to create efficient billing solutions and streamline internal processes. Your contributions will directly impact our operational efficiency and customer satisfaction.

Join our dynamic team at gleanwork as a Software Engineer focused on our Billing & Revenue Platform. In this role, you'll be responsible for developing and maintaining our billing systems, ensuring accuracy and efficiency in revenue collection. You will collaborate with cross-functional teams to enhance our platform and deliver exceptional value to our customers.As a key member of our engineering team, you will leverage your expertise in software development to implement innovative solutions that drive our business forward. If you're passionate about technology and eager to make a significant impact in a fast-paced environment, we want to hear from you!

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 Crusoe as a Senior Backend Software Engineer specializing in billing solutions. In this pivotal role, you will architect and develop robust backend systems that facilitate efficient billing processes, ensuring seamless transactions and customer satisfaction. You will collaborate with cross-functional teams to enhance our billing infrastructure and drive innovative solutions that meet our growing business needs.

About Scale AI At Scale AI, we are on a mission to revolutionize the development of artificial intelligence applications. Over the past eight years, we have established ourselves as the premier AI data foundry, driving groundbreaking advancements in generative AI, defense technologies, and autonomous vehicles. Following our recent Series F funding round, we are poised to expand our capabilities in providing frontier data, furthering our commitment to achieving Artificial General Intelligence (AGI). Our focus remains on enhancing model evaluation processes for both enterprise clients and government entities. About the Data Engine Our Generative AI Data Engine is instrumental in powering the most sophisticated large language models (LLMs) and generative models through exceptional Reinforcement Learning with Human Feedback (RLHF), human data generation, model evaluation, safety measures, and alignment. The data we generate plays a crucial role in shaping how humanity interacts with AI technologies. About the Billing Team We are actively seeking innovative Software Engineers to join our dynamic Billing Platform team. In this pivotal role, you will spearhead the development of our revenue tracking and billing system for Generative AI products. Your responsibilities will include designing versatile systems to accommodate diverse customer billing scenarios, implementing intricate billing partitioning strategies based on real-time criteria, and enhancing customer invoice generation along with balance visibility. You will gain extensive exposure to cutting-edge AI applications across enterprises, startups, government agencies, and major technology firms. The ideal candidate is a naturally entrepreneurial engineer who thrives in ambiguous environments, taking charge of outcomes through coding, customer interaction, requirements definition, and more. We believe that the most effective engineers take ownership of outcomes and possess a profound understanding of customer challenges.

SquareTrade delivers protection plans and insurance products to a large customer base. The Engineering team develops and maintains the systems behind these services, ensuring reliability and efficiency. Role overview The Software Engineer position in San Francisco centers on building and enhancing technology that supports SquareTrade’s commitment to customer service. This role involves tackling projects that promote technical growth and hands-on problem-solving. What you will do Contribute to the design, development, and maintenance of systems supporting SquareTrade’s services Work with other engineers to solve technical challenges and improve existing solutions Participate in projects that encourage learning and skill development Location This position is based in San Francisco.

Join our dynamic team at reteam as a Software Engineer in the vibrant city of San Francisco! We are seeking innovative and driven individuals to contribute to our technology initiatives.In this role, you will have the opportunity to work on exciting projects that push the boundaries of software development.

About the Role Stripe is building technology that supports businesses worldwide. The San Francisco engineering team is looking for a Software Engineer to help improve our platform and deliver new features for our customers. What You Will Do Collaborate with other engineers to design and build new systems Enhance existing products and infrastructure Contribute ideas to improve the Stripe platform Location This position is based in San Francisco, California.

Join fal as an accomplished Enterprise Account Executive, where your expertise will drive transformative revenue growth in the realms of AI, SaaS, and technology startups. You will adeptly manage intricate sales cycles, cultivate enduring relationships with enterprise clients, and spearhead strategic negotiations. Utilize your profound knowledge of AI infrastructure to assist pioneering organizations in adopting fal's platform, enhancing their capabilities, and influencing the trajectory of AI-powered media on a global scale.Key Responsibilities:Take full ownership of the sales cycle, from lead generation to enterprise contracting, articulating the advantages of fal's AI infrastructure effectively.Design and execute sophisticated sales strategies to penetrate new markets, maintain executive-level relationships, and consistently surpass revenue goals.Conduct in-depth product demonstrations and navigate complex contract negotiations, ensuring alignment with technical and business stakeholders.Provide strategic insights on market trends and represent customer feedback to guide product development and feature prioritization.Mentor junior sales team members, promoting a culture of knowledge sharing and continuous performance enhancement.Ideal Candidate Qualifications:Over 5 years of B2B sales experience in AI, SaaS, or technology startups, with a demonstrated history of surpassing sales quotas.Skilled in engaging and selling to C-suite executives or other high-level decision-makers within complex organizational structures.