Principal Full Stack Software Engineer

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 GustoAt Gusto, our mission is to empower the small business economy. We tackle essential services like payroll, health insurance, 401(k)s, and HR, allowing business owners to concentrate on their passion and their customers. With teams in Denver, San Francisco, and New York, we proudly support over 400,000 small businesses across the nation, while fostering a workplace that reflects and honors the diverse customers we serve. Discover more about our Total Rewards philosophy.About the Role:We are seeking experienced engineers to join our teams focused on enhancing core platform capabilities, optimizing existing systems for scalability, and shaping the future of Gusto's Payroll and Tax systems. As a Principal Software Engineer, you will lead projects from inception to completion, influencing initial feature specifications, optimizing systems towards desired outcomes, executing projects, and maintaining the code that underpins key user experiences. If you are passionate about developing sophisticated software that has a significant impact on the modern economy, we invite you to join us!About the Team:The Payroll team is the core of Gusto’s operations. The Pay Group teams (responsible for payroll and tax) oversee the product, operational, and service aspects that Gusto utilizes to onboard clients, process payroll, calculate taxes and deductions, pay and file with tax authorities, and ensure compliance on behalf of our clients. This domain is intricate and offers opportunities to engage in system design that simplifies processes for both internal and external customers.Sub-Teams:Tax Accuracy: This group is responsible for gathering and maintaining the essential information required to ensure timely and accurate tax payments and filings for our clients, consisting of multiple teams covering various aspects of the process.Ledger: This team is developing a payroll ledger to monitor accrual accounting for payroll-related monetary movements, beginning to support the payroll domain, risk management, payments, and accounting.Engine: This team collaborates closely with the payroll compliance team to facilitate compliant payroll processes, such as minimum wage adjustments and regular pay rates.

About UsAt Twelve Labs, we are at the forefront of innovation, creating advanced multimodal foundation models that enable machines to understand videos in a human-like manner. Our groundbreaking approach to video-language modeling is setting new benchmarks, enhancing our ability to analyze and interact with diverse media formats.With an impressive $107 million in funding from leading venture capital firms including NVIDIA’s NVentures, NEA, Radical Ventures, and Index Ventures, as well as visionary AI leaders like Fei-Fei Li and Alexandr Wang, we are strategically positioned to drive global innovation. Our headquarters in San Francisco, along with a significant presence in Seoul, illustrates our commitment to reshaping the future of technology.We celebrate the unique journeys of every individual and believe that our diverse backgrounds fuel our creativity and innovation. We invite passionate individuals who share our mission to join us in transforming video understanding and multimodal AI.Role OverviewUnlike typical video engineering roles that focus primarily on enhancing human playback, at Twelve Labs, we engineer video for machine comprehension. This unique approach prioritizes AI model performance over mere perceptual quality. As the Principal Software Engineer for Video Engineering, you will architect and implement our video processing pipelines, overseeing the entire journey from byte ingestion through to playback. Your work will be pivotal in ensuring our systems are efficient, cost-effective, and tailored for AI-driven video intelligence at scale.Your ResponsibilitiesEnd-to-End Ownership: Lead the design and execution of video pipelines, covering ingestion, decoding, chunking, storage, and playback, applicable to both batch and streaming modes.Codec Expertise: Guide the development of decoding strategies, container format management, and codec implementations, ensuring optimal performance for various video types.

Welcome to Demandbase:At Demandbase, we are pioneering the only pipeline AI platform designed to empower go-to-market (GTM) teams in automating growth at scale. Our platform offers a holistic view of data, insights, actions, and outcomes, allowing B2B enterprises to effectively align and implement their account-based GTM strategies with confidence. Trusted by thousands of businesses, we help maximize revenue, reduce waste, and streamline data and technology stacks—all within a single platform.Our commitment extends beyond technology; we invest deeply in our teams, culture, and the communities we serve. Recognized continually as one of the Best Places to Work in the San Francisco Bay Area by Fortune and as one of the 60 Best Companies to Sell For by Selling Power, our offices are strategically located in San Francisco, New York, Austin, Seattle, India, and the United Kingdom.Role OverviewAs a Principal AI Software Engineer, you will spearhead the design and implementation of AI-native platforms that will transform how Demandbase develops and scales intelligent systems. Acting as a technical beacon, you will lead the evolution from traditional SaaS architectures to autonomous, agent-driven systems powered by generative AI.This is a senior-level individual contributor position with significant influence across the enterprise. You will establish architectural directions, collaborate closely with Product and Engineering leadership, and ensure our infrastructure and platforms are equipped to support large language models (LLMs), agentic workflows, and real-time AI-driven capabilities at scale.The base compensation for this position is applicable to candidates based in San Francisco, CA. For candidates located elsewhere, the base compensation will align with the primary work location, as our compensation ranges are location-specific. Actual compensation packages will reflect a variety of factors unique to each candidate, including skill set, years of experience, and depth of expertise.

Join Cloudflare as a Principal Software Engineer specializing in Resiliency, where you will play a pivotal role in enhancing our systems' robustness and availability. Your expertise will contribute to building and maintaining resilient infrastructure that supports our global network, ensuring our customers receive uninterrupted service.In this role, you will work alongside a talented team of engineers to identify vulnerabilities, implement solutions, and innovate new strategies that enhance system performance and reliability. If you are passionate about software engineering and system resiliency, we invite you to apply!

Join Cloudflare as a Principal Software Engineer specializing in billing systems, where you will play a pivotal role in shaping our payment and invoicing solutions. You will collaborate with cross-functional teams to implement innovative solutions that enhance user experiences and streamline processes. If you're passionate about building scalable software and want to contribute to a fast-paced, innovative environment, we want to hear from you!

Join Discord, a platform that connects over 200 million users every month primarily through gaming. With over 90% of our users engaged in gaming activities, we facilitate over 1.5 billion hours of gaming conversations, enhancing the experience before, during, and after gameplay.The Infrastructure organization at Discord is fundamental to our user experience. We handle the real-time delivery of over 40 million events per second and manage the storage of trillions of messages, ensuring robust connections among our vast user base. As a Principal Engineer, you will play a pivotal role in guiding our infrastructure teams, shaping our technical vision, and maintaining the reliability of Discord at a massive scale.This position is ideal for a professional who excels at the intersection of advanced technical skills and organizational leadership. You will contribute to our infrastructure roadmap, address our most challenging technical dilemmas, and ensure our systems can efficiently scale to accommodate the next wave of users.

Principal Software Engineer Saviynt offers an AI-driven identity platform that effectively manages and governs access permissions for both human and non-human entities across all organizational applications, data, and processes. Our clients rely on Saviynt to protect their digital assets, enhance operational efficiency, and lower compliance expenses. Designed for the age of AI, Saviynt is at the forefront of helping organizations safely advance their AI deployments and utilization. As a recognized leader in identity security, we provide solutions that empower and protect some of the world’s leading brands, Fortune 500 companies, and government institutions. For more details, please visit www.saviynt.com. Role Summary In this pivotal role, you will provide technical leadership and extensive knowledge in complex engineering domains, guiding architectural decisions while ensuring scalability, reliability, and quality across key platform components. As a Principal Engineer, you will act as a technical authority, mentor senior engineers, and tackle the most intricate technical challenges. The Connectors team plays a crucial role in facilitating seamless integrations between Saviynt's Identity Governance platform and a multitude of enterprise applications by developing and maintaining robust, scalable connector frameworks. We are committed to ensuring reliable data synchronization, provisioning, and lifecycle management across diverse external systems, forming a vital foundation for the entire platform. What You Will Be Doing ● Design and architect scalable, high-performance connector frameworks for enterprise application integrations.● Define technical standards, best practices, and design patterns for connector development.● Drive architectural decisions for complex integration scenarios involving over 200 enterprise applications.● Evaluate and recommend new technologies, tools, and frameworks to enhance connector reliability and performance.● Lead technical design reviews and provide guidance on system architecture and design trade-offs.

Join Cloudflare as a Principal Software Engineer, where you will play a pivotal role in designing and implementing innovative software solutions. You will collaborate with cross-functional teams to enhance our platform's scalability, security, and performance, making a significant impact on our global user base.

About the TeamOpenAI’s B2B Engineering team is committed to delivering our advanced technology to the world through our developer platform and enterprise products. We develop robust backend systems, APIs, and infrastructure that empower developers and organizations to leverage OpenAI's capabilities in production environments.Our expertise encompasses distributed systems, data infrastructure, platform services, and enterprise-grade features such as security, compliance, authentication, and reliability. We collaborate closely with product, research, design, infrastructure, and forward-deployed teams to transform pioneering AI functionalities into scalable and dependable products.About the RoleWe are seeking a Principal Software Engineer to architect and scale the systems that drive our developer and enterprise-facing products. You will take charge of the design for backend services and platform capabilities that safely and reliably integrate new AI functionalities into production at a global scale.This position covers a wide technical landscape, including distributed systems, APIs, databases, data pipelines, and secure enterprise infrastructure. You will play a pivotal role in shaping both the technical architecture and the product experience of our platform, maintaining high standards for performance, safety, reliability, and API design.ResponsibilitiesDesign, implement, and scale backend services, APIs, and infrastructure supporting OpenAI’s developer and enterprise products.Lead the architectural design of distributed systems, databases, and data pipelines that handle large-scale, high-reliability production workloads.Own key platform capabilities from initial technical strategy and design through implementation, launch, and ongoing operation.Carefully shape API design, treating interfaces as core product touchpoints while ensuring a top-notch developer experience.Create secure, reliable, and compliant systems that cater to both enterprise and developer needs.Work closely with product, research, design, infrastructure, and forward-deployed engineering teams to deploy new capabilities into production.Steer technical direction across complex challenges, making sound architectural trade-offs to balance speed, quality, and maintainability.Enhance engineering productivity by developing internal tools, platform abstractions, and systems that amplify efficiency across the organization.

At ZoomInfo, we are committed to accelerating careers. We foster a dynamic environment where innovation thrives, empowering you to produce your best work. Our team is dedicated, supportive, and celebrates victories together. With cutting-edge tools that amplify your contributions and a culture that nurtures your ambitions, you'll not only make an impact but also drive change swiftly.As a Principal Software Engineer on our Advertising, Company Intelligence, and Intent team, you will play a pivotal role in designing and implementing the foundational systems that drive our real-time marketing platform. You will work on high-throughput ad infrastructure, large-scale identity resolution, and intelligent systems enhanced by large language models (LLMs), pushing the boundaries of scalability, intelligence, and speed to achieve significant business outcomes.You will join a team engaged in a variety of ambitious and technically challenging projects—from APIs processing tens of billions of events daily to innovative buyer intent algorithms powered by LLMs and a unified B2B identity graph. Your strengths and interests will guide your assignment to initiatives where your impact can be maximized.This role is situated in a high-growth, high-ownership environment at the forefront of modern software engineering, data infrastructure, and applied AI.

Join Crusoe Technologies as a Principal Software Engineer specializing in Software-Defined Networking (SDN). In this pivotal role, you will lead the design and development of innovative networking solutions that leverage SDN technologies. You will work closely with cross-functional teams to enhance our networking capabilities and drive the future of our products.As a thought leader in SDN, you will be responsible for architecting scalable solutions, optimizing performance, and ensuring robust security across our network infrastructure. This is an exciting opportunity to impact the rapidly evolving tech landscape.

Are you ready to push the boundaries of your capabilities?At Coinbase, we are on a mission to enhance economic freedom globally. This ambitious goal challenges us to excel every day as we construct the future of the on-chain platform and the global financial system.We are looking for a unique individual who is not only passionate about our mission but also believes in the transformative potential of cryptocurrency and blockchain technology in modernizing the financial landscape. We seek someone eager to make a significant impact, thrives under pressure, collaborates with exceptional colleagues, and actively seeks constructive feedback to foster personal growth. We want someone who approaches the company's toughest challenges head-on.Our work culture is intense and may not be for everyone. However, if you aspire to shape the future alongside high-performing peers who expect the same from you, there is no better place to be.While many positions at Coinbase embrace a remote-first approach, we are not entirely remote. In-person participation is required periodically throughout the year. We organize team and company-wide retreats multiple times annually to enhance collaboration, connection, and alignment, and attendance is both expected and supported.As we strive to fulfill our mission, we are evolving into an "AI-first" organization, fundamentally rethinking the operations of a global financial institution. Artificial Intelligence is central to this strategy, enhancing our core processes while human experts provide high-level judgment as the system's "function calls".The RoleWe are in search of a visionary Principal Software Engineer with a focus on AI to serve as the technical guiding force for our AI Automation initiatives. You will be responsible for developing Agentic AI systems that drive multiple organization-wide projects, including their foundational elements, orchestration layers, and the tools necessary for every Coinbase team to automate their workflows. Reporting to the VP of Engineering, you will operate with a high degree of autonomy to define the essence of a fully AI-driven enterprise from the ground up.What You’ll DoArchitect Agentic Systems: Innovate and construct sophisticated multi-agent architectures that transition from simple interactions to autonomous execution and intricate reasoning.Tackle the "Hard Problems" of AI: Establish and implement reliable evaluation frameworks, eliminate hallucinations through rigorous data grounding, and build comprehensive solutions.

Role Overview SoFi is looking for a Principal Software Engineer focused on Member Growth to join the San Francisco headquarters. This role centers on designing and building software that improves the experience for SoFi’s members and supports the company’s mission to help people achieve financial independence. What You Will Do Lead the design and implementation of new software solutions aimed at increasing member engagement and growth. Guide and mentor a skilled team of engineers, providing technical direction and support. Work closely with cross-functional partners to deliver systems that scale with SoFi’s expanding user base. Apply modern technologies and engineering practices to create reliable, maintainable platforms. Location This position is based at SoFi’s San Francisco headquarters in California.

Join Saviynt as a Principal Software Engineer in our Privileged Access Management team, where you will drive innovation and excellence in security solutions. Our Enterprise Identity Cloud empowers organizations to navigate the complexities of cloud initiatives, ensuring robust security and compliance while delivering a seamless user experience. We integrate identity governance, granular application access, cloud security, and Privileged Access Management to create a secure business ecosystem. Trusted by the world's leading brands, Saviynt accelerates digital transformation and supports distributed workforces.We invite you to apply if you are:A Collaborative Partner: You thrive in teamwork, engaging effectively with engineering, product, and cross-functional teams to tackle complex challenges.An Exceptional Problem Solver: You excel at addressing intricate technical issues with innovative, creative solutions while fostering collaboration.A Forward Thinker: Your expertise in software design and architecture allows you to maintain high-quality standards while proactively seeking ways to enhance performance and efficiency.A Customer-Centric Builder: You possess strong interpersonal skills, understanding customer needs and effectively communicating technical solutions to their challenges.An Empowering Mentor: You foster a supportive environment, guiding your team to become self-sufficient while providing constructive feedback and nurturing their growth.

Discover OktaAt Okta, recognized as the World’s Identity Company, we empower individuals to securely access any technology, anywhere, on any device or application. Our versatile Okta Platform and Auth0 Platform deliver secure access, authentication, and automation, placing identity at the forefront of business security and innovation.We embrace diverse perspectives and experiences, seeking lifelong learners who can enhance our team with their unique insights. Join us in building a future where identity belongs to you.The TeamThe Fine-Grained Authorization (FGA) team is dedicated to developing and managing a high-availability, multi-region SaaS platform that offers flexible, high-performance authorization for our clients. We tackle the intricate engineering challenges associated with modeling complex permissions at scale, utilizing Relationship-Based Access Control (ReBAC) to enable developers to define and query sophisticated access rules that surpass the constraints of traditional authorization methods.Your RoleDesign, develop, and sustain scalable, efficient, and secure authorization solutions.Architect the FGA platform for exceptional performance, ensuring millisecond-level p99 check latencies and horizontal scalability to accommodate millions of queries per second.Lead in-depth design efforts, continuous benchmarking, and relentless optimization of core data models, query paths, and distributed caching strategies to achieve these essential performance benchmarks.Write clean, maintainable, and efficient code. Conduct code reviews and ensure adherence to coding standards.Diagnose and resolve issues in authorization systems, maintaining reliability, performance, and security.Participate in continuous improvement initiatives, including code refactoring to meet evolving requirements and enhance system performance.Create and maintain comprehensive documentation for all developed features and systems.Mentor junior engineers, providing technical guidance and nurturing a culture of continuous learning and enhancement.Engage in the team's on-call rotations to ensure optimal service availability for our customers.Your Qualifications8+ years of professional software engineering experience.Expertise in designing and implementing large-scale distributed systems.Strong knowledge of authorization models, particularly ReBAC and traditional ACLs.Proficiency in programming languages such as Java, Python, or Go.Experience with cloud technologies and microservices architecture.Exceptional problem-solving skills and a passion for performance optimization.Excellent communication and collaboration abilities.

Building Trust Through InnovationAt OneTrust, our mission is to foster innovation through the ethical application of data and AI technologies. We believe that trustworthy data should empower teams, not hinder them, propelling innovation forward. Since launching our groundbreaking platform for responsible data use in 2016, we have continually evolved, particularly with AI advancing the capabilities of data management. Our AI-Ready Governance Platform™ seamlessly integrates regulatory intelligence, automation, and cohesive governance processes, enabling organizations to thrive in the fast-paced AI landscape while ensuring robust governance to mitigate data misuse. Trusted by thousands globally, OneTrust is at the forefront of transforming data into a powerful asset for business and society.The OpportunityWe are in search of a Principal Software Engineer who is enthusiastic about problem-solving to join our dynamic AI Governance team at OneTrust. In this pivotal role, you will take charge of designing and developing innovative frontend and backend features, while also enhancing existing capabilities of our leading platform.

Join Promise as a Software Engineering Lead in the heart of San Francisco, where you will play a pivotal role in driving innovative software solutions. You’ll be responsible for leading a talented team of engineers to design, develop, and implement high-quality software products that meet the needs of our clients. This is an exciting opportunity to make a significant impact in a dynamic and growing company.

The preferred candidate should be local to and willing to work from any of our offices (Silver Spring, NYC, SF, Miami, Denver) 1-2 times per week. ABOUT ROCKET MONEY At Rocket Money, our mission is to significantly enhance the financial well-being of millions. We empower our members with a profound understanding of their finances and provide valuable services designed to save them time and money, thereby facilitating their financial journey. ABOUT THE TEAM The Rocket Ready team collaborates with clients to strengthen their readiness for homeownership, merging the capabilities of Rocket Money with those of Rocket Mortgage. We develop innovative technology and solutions that empower both our clients and the internal teams who assist them. Key products we support include: User-facing public web applications and CRM systems for aspiring homeowners. Internal tools aimed at enhancing the efficiency of licensed mortgage bankers and consultants. Data pipelines to receive, enrich, and operationalize data across the organization. Our platform is just over a year old, and much of our work is focused on greenfield development with a small team. We also engage extensively with existing systems within our broader parent organization, ensuring a balance of concentrated development and collaborative teamwork across the company. A selection of technologies we frequently use includes: Python, FastAPI, UV, Kafka, Confluent, React, TypeScript, TanStack, C#, .Net, Postgres, Docker, Kubernetes, Terraform, Salesforce, AWS, and GitHub Actions. ABOUT YOU ‍ We are seeking seasoned full-stack software engineers who can take ownership of transforming our team’s concepts and requirements into tangible solutions. Ideally, you possess extensive knowledge of our tools and tech stack, enabling you to contribute effectively from day one. More importantly, you are a driven learner focused on growth—both personally and for the organization as a whole. You would be an excellent fit if you: Have 7+ years of experience in relevant software engineering projects. Exhibit an entrepreneurial mindset and are eager to leverage your technical skills to drive positive business outcomes. Produce clean, reliable code across various platforms. Have substantial professional experience with one or more of the following: Python, React (or similar frontend framework), Postgres (or a comparable relational database). Are naturally collaborative, inquisitive, and communicative, enjoying idea exchange.