Senior Staff Software Engineer - API Development

Role Overview Pinterest is looking for a Senior Staff Software Engineer to join the Merchants team. This role focuses on building and improving features that support merchants and enhance the overall platform experience. What You Will Do Work closely with teams across engineering, product, and design to gather requirements and set technical direction. Design and implement scalable systems that support merchant needs and user engagement. Develop software solutions that help merchants connect with Pinterest users and grow their businesses. Contribute to the platform’s mission of inspiring creativity and discovery worldwide. Location This position is based in San Francisco, CA or Palo Alto, CA.

Join our dynamic team at Parafin as a Senior Software Engineer focusing on our innovative Merchant Platform. You will play a critical role in designing and building robust solutions that empower merchants to optimize their operations. Your expertise will be instrumental in enhancing the user experience and ensuring the scalability of our platform.In this position, you will collaborate closely with product managers, designers, and other engineers to deliver high-quality software solutions. If you are passionate about technology and eager to make a significant impact, we want to hear from you!

Join Parafin as a Staff Software Engineer in Merchant Decisioning where you'll be at the forefront of developing innovative solutions that empower merchants. In this role, you will leverage your expertise to design and implement scalable systems that drive data-driven decisions, directly impacting merchant success.

Join parafin as a Senior Software Engineer in our Merchant Decisioning team, where you will play a critical role in developing cutting-edge solutions that empower merchants to make informed decisions. You will be involved in the entire software development lifecycle, from conception to deployment, ensuring robust architecture and high-quality code.

Role overview Pinterest is hiring a Senior Staff Product Manager to focus on the Merchants segment. This role shapes product strategy and execution to support merchants' success on the platform. What you will do Lead product direction for merchant-focused features and solutions Work closely with cross-functional teams to move projects forward Use data insights to identify opportunities and guide product improvements Drive innovation in merchant user experience Location San Francisco, CA, US Remote, US

At Crusoe, we are dedicated to accelerating the abundance of energy and intelligence. As a pioneering AI infrastructure company, we control every aspect of our operations — from energy generation to the digital tokens that power the world’s most ambitious AI workloads. Joining Crusoe means being part of a team that is shaping the future at an unprecedented pace.We are amid a transformative industrial revolution. The endless demand for AI computing power poses significant challenges, particularly concerning energy supply. Our energy-first strategy not only enhances AI infrastructure but also contributes positively to the environment, empowering innovators in the AI sector.We seek proactive, problem-solving team members who recognize the scale of our mission and are eager to navigate uncharted territories. If you aspire to advance your career alongside experts in energy, manufacturing, data center construction, and cloud services, we invite you to become part of our dynamic team.If you are ready to engage in the most impactful work of your career, assist our customers and partners in elevating their AI strategies, and contribute to a high-performing, supportive team, we welcome you to build the future with us at Crusoe.About This RoleThe Cloud Storage team at Crusoe is searching for a Senior Staff Software Engineer to act as the principal architect for our storage strategy. Unlike a Staff Engineer who leads feature development, a Senior Staff Engineer will define the long-term technical roadmap essential for our AI-scale infrastructure. You will play a crucial role in establishing the architectural strategy, ensuring the integrity and global scalability of our specialized storage services. Your work will focus on the underlying physics of the stack, bridging high-performance NVMe hardware with globally distributed object storage solutions that compete with S3.Your ResponsibilitiesArchitectural Vision & Strategy: Lead the development and execution of the long-term technical strategy for Crusoe's storage engine, while identifying and integrating industry trends such as CXL and NVMe-oF into a unified roadmap.System Programming Expertise: Utilize your extensive experience in system programming with languages such as C, C++, Go, and Rust to lay the groundwork for our V2 storage re-architecture.Storage Protocols: Design and implement solutions employing industry-standard storage protocols, including NFS, SMB, iSCSI, and NVMe/TCP.

Checkr, Inc. is looking for a Senior Staff Software Engineer in San Francisco, California. This position centers on designing and building software that supports the company's mission to transform the background check industry. Role overview This role involves tackling complex engineering challenges and developing solutions that have a direct impact on Checkr's products. Projects will focus on creating and improving software applications that serve a wide range of users and use cases. Collaboration Senior Staff Software Engineers at Checkr work closely with colleagues from different departments. Expect to partner with cross-functional teams to ensure software meets technical and business needs. What you will do Build and maintain software applications that support Checkr's core services Address challenging problems with thoughtful, scalable solutions Work collaboratively with teams across engineering, product, and other functions

Waymo is at the forefront of autonomous driving technology, dedicated to becoming the most trusted driver globally. Originating from the Google Self-Driving Car Project in 2009, our primary goal has been to develop the Waymo Driver—The World’s Most Experienced Driver™. Our innovations aim to enhance mobility access while saving countless lives lost to traffic accidents. The Waymo Driver powers our fully autonomous ride-hail services and is adaptable across various vehicle platforms and product applications. Having completed over ten million rider-only trips, our technology has autonomously navigated over 100 million miles on public roads and executed tens of billions of miles in simulations across more than 15 U.S. states.Your Role:Lead the technical strategy for the Simulator’s issue response lifecycle, encompassing automated detection, root cause analysis, and the deployment of both temporary and permanent software solutions to prevent future regressions.Direct complex, cross-functional projects to enhance automated issue detection by integrating new data sources and signals, thus reducing the time from an in-field event to mitigation deployment.Work closely with Data Science, Systems Engineering, and operations teams to improve technical processes and tools, accelerating the deployment and validation of solutions for identified issues.Mentor mid-level and junior engineers on sophisticated technical challenges, best practices in system architecture, and high-quality software development, serving as a technical force multiplier.

Join our innovative engineering team at Twitter Inc. as a Senior Staff Software Engineer. We are looking for talented individuals who are eager to tackle complex challenges and contribute to the development of cutting-edge technology. In this role, you will lead projects, mentor junior engineers, and collaborate with cross-functional teams to enhance our platform.

At NerdWallet, we strive to illuminate every financial decision in life, and this mission thrives on our extraordinary team of Nerds. We are committed to nurturing an inclusive, flexible, and transparent culture that empowers you to grow, take calculated risks, and express your authentic self (cape optional). Whether you prefer to work remotely or from our office, we support your best working environment. Your well-being, professional development, and impact are our priorities because when one Nerd excels, we all benefit.As a Senior Staff Software Engineer, you will be pivotal in architecting, developing, and upkeeping intricate software systems while providing invaluable technical leadership to your team. Your main focus will be to design scalable and efficient solutions that fulfill both functional and non-functional requirements such as performance, security, and maintainability.You will write high-quality, scalable, and efficient code, ensuring our software aligns with business and technical specifications. Your role also encompasses reviewing and refining existing code, conducting comprehensive testing, and troubleshooting complex challenges to enhance system performance and reliability. Additionally, you will mentor junior developers, cultivating a continuous learning environment and promoting best practices in coding, architecture, and software development methodologies. Collaboration with cross-functional teams, including product managers, designers, and quality assurance professionals, will be essential to ensure that our technical solutions align with business goals. Strong communication, problem-solving skills, and the ability to work autonomously while leading projects are crucial for your success in this role.This position reports to the Senior Manager of Engineering.Projects you may be involved in include:Enhancing and developing new insurance flows through our marketing funnels utilizing A/B testing, micro-optimizations, and ordering changes for auto, home, life, Medicare, and travel insurance.Designing and implementing secure, scalable backend integrations with partner and third-party platforms to boost conversions and user engagement.Leading the development of high-impact insurance user experiences, including organic SEO pages that drive significant traffic and user flows across various insurance products (auto, home, life, Medicare, U65 health, travel, and pet).Instrumenting our systems within our Observability platform, Datadog.

About the Senior Staff Software Engineer Role Crusoe Technologies is hiring a Senior Staff Software Engineer for the CAPE project in San Francisco, CA. This role focuses on building and maintaining scalable software that strengthens our infrastructure and streamlines operations. What You Will Do Design and develop software solutions for the CAPE project Maintain and improve existing systems to support infrastructure growth Work closely with teams across disciplines to deliver reliable, efficient software What We Look For Advanced programming skills Deep understanding of software architecture Experience collaborating with cross-functional groups

About the TeamThe Launchpad team comprises innovative engineers who work closely with our VP of Product & Design and our Co-founder to uncover strategic business opportunities and develop cutting-edge solutions.About the RoleDoorDash is seeking a seasoned backend engineer to take charge of a confidential initiative. Over the last year, the Launchpad team has gained significant traction with a range of emerging hardware-integrated products. This is a hands-on technical position focused on designing backend systems and APIs that must function flawlessly 24/7, regardless of network conditions, while rapidly deploying new features and collaborating cross-functionally with Product, Design, and Hardware teams.You will report directly to the Head of Launchpad Engineering.You’re Excited About This Opportunity Because You Will…Design robust backend solutions to support in-field hardware devices around the clock.Collaborate with Product Managers, Business leaders, and key stakeholders to define the team’s roadmap and vision, and oversee the execution of that roadmap.Thrive in an ambiguous, fast-paced business environment.Promote innovation, teamwork, the implementation of advanced technologies, and creative problem-solving.We’re Excited About You Because You Have…A Bachelor's, Master's, or PhD in Computer Science or a related field.Over 10 years of industry experience.Proven experience leading complex distributed systems projects and mentoring other engineers.A strong background as an engineer in a fast-paced, product-oriented development environment.Extensive experience in designing and scaling backend services for performance and reliability.A track record of shipping consumer-facing products at scale.

Employee Applicant Privacy NoticeAbout Us:Join us in shaping a brighter financial future. Together with our members, we are transforming the way individuals perceive and engage with personal finance.As a pioneering financial services company and national bank, we harness innovative, mobile-centric technology to empower millions of our members in achieving their financial goals. The industry is currently under a remarkable transformation, and we are proud to be at the forefront of this evolution. Every day, we come to work knowing our actions directly influence people's lives, guided by our core values. Join us to invest in yourself, your career, and the world of finance.The RoleWe are actively seeking a Senior Staff Engineer to become an integral part of our team. SoFi is launching a new unit dedicated to developing cryptocurrency products and services for our members. Recent advancements have opened a pathway for SoFi to re-enter this space and expand our offerings with intuitive, secure, and comprehensive solutions across crypto investing, transfers, payments, custody, and more.In this role, you will be at the heart of our efforts—designing functionality, architecting our systems, resolving bugs, ensuring code health, and continuously evolving as an engineer. The ideal candidate is proactive and hands-on, possesses a strong sense of ownership and commitment to delivery, and excels as a mentor and collaborator. At SoFi, we value collaboration among Product, Design, and Engineering, so you will engage in the entire product lifecycle, from conception to deployment and ongoing enhancement.At SoFi, you will be part of a transformative financial company with the ambition to help our members achieve financial independence and meet their goals. We strive to be at the core of our members' financial lives, assisting everyone in managing their finances effectively. We pioneered student loan refinancing to tackle the primary financial challenge of a new generation with a modern approach to lending and personal finance. We have since broadened our range of products and services across lending, wealth management, and insurance. SoFi has experienced remarkable growth and has ambitious plans for the future, but to sustain this momentum, we need exceptional talent. And that begins with you.

Embark on an Engineering Voyage at Ivo!At Ivo, our engineers are the architects of innovation. We’ve made waves in the tech seas with groundbreaking creations:• An AI assistant within MS Word that edits documents seamlessly [2023]• Revolutionizing embeddings models by embracing agentic RAG [2023]• Large-scale legal fact extraction powered by LLMs [2024]• A legal assistant designed to navigate vast contract databases with pinpoint accuracy [2024]• Clustering legal documents from the same lineage [2025]• Automating deviation analysis to uncover hidden risks in extensive contract databases [2025]• Integrating contracts with amendments to create a time series of “composite” contracts that moved our clients to tears [2025]Your RoleYou’ll steer the ship in designing, creating, and deploying generative AI products. Your journey will include:• Crafting full stack generative AI capabilities• Delivering high-performance UI code and backend systems that reliably process and analyze millions of contracts• Designing pipelines that orchestrate LLMs, data extraction, and clustering algorithms at scale• Collaborating with designers, legal experts, and fellow engineers to reimagine the future of legal work in the age of AIOur MissionThe legal realm is filled with overburdened in-house teams, often facing grueling 80-hour weeks and relentless deadlines. Until now, technology has done little to alleviate this burden.With LLMs, we are on a mission to reclaim these lawyers' time, and here at Ivo, we aim to liberate them from the chains of laborious tasks.We are creating an AI-native platform designed to automate tedious legal processes. Our software is beloved by users, boasting a remarkable 85% trial win rate in a competitive marketplace. We’re genuinely transforming lives, and we are just getting started.

Senior Staff Software Engineer Location: Hybrid - Palo Alto Office on Tuesdays and Thursdays Make a Meaningful Impact At Midi Health, we're on a mission to transform women's healthcare. We are seeking a dynamic Senior Staff Fullstack Engineer who will act as a technical cornerstone within our Engineering Organization. As we expand, you will play a crucial role by translating intricate insights into cohesive technical blueprints and innovative products that drive our vision forward. Your Responsibilities Diagnose intricate technical challenges and spearhead architectural evaluations across diverse teams to mitigate technical debt, establish cross-service frameworks, and secure the long-term viability of Midi’s healthcare infrastructure. Function as a 'part-time product manager for technology', championing essential infrastructure enhancements that foster future operational agility. Design and develop outstanding, scalable, and adaptable products and code, striking a balance between execution speed and scalability. Influence engineering culture positively by promoting best practices for automated testing, CI/CD, and maintaining high-quality code across the entire stack. Assess high-level technical and business issues, architecting elegant and flexible solutions that consider long-term scalability and business expansion. Collaborate with Executive Leadership, Product, Marketing, and Clinical Stakeholders to uncover unmet customer and operational needs, translating business objectives into technical strategies that yield results for our patients and clinicians. Mentor senior and junior engineers through formal and informal channels, nurturing an environment of curiosity, humility, and technical excellence. About You You bring over 8 years of experience in building and scaling intricate engineering solutions, with a demonstrable history of leading large-scale architectural migrations in a startup setting. You have proven expertise in Django/DRF and React/Next.js. You are adept at navigating high-level abstractions, converting vague product and growth aspirations into tangible technical roadmaps. Your diverse background includes creating consumer-facing products alongside deep proficiency in architecting complex operational and workflow management systems. You are an advanced user of agentic coding tools and LLMs (e.g., Claude Code, GitHub Copilot) to expedite development and guide the team on high-leverage prompting and code auditing strategies.

About LightfieldLightfield is an innovative, AI-driven Customer Relationship Management (CRM) platform that seamlessly integrates your email, calendar, and meeting interactions. By capturing every communication, it transforms these interactions into organized insights, including accounts, tasks, follow-ups, and actionable intelligence, ensuring nothing falls through the cracks.We are revolutionizing CRM from the ground up. Rather than imposing rigid structures on teams, Lightfield learns from real-world workflows, adapting and automating processes while surfacing crucial insights that propel growth. Our goal is to build the CRM platform we've always dreamed of: fast, intelligent, and genuinely supportive.Supported by renowned investors such as Greylock, Lightspeed, and Coatue, our team includes experts who have previously developed Tome, a generative AI presentation tool utilized by over 25 million users. Our background also includes significant contributions to projects at Llama, Instagram, Facebook Messenger, Pinterest, Google, and Salesforce.About the RoleWe are in search of a seasoned Senior/Staff Software Engineer (5+ years of experience) who is product-oriented and excited to confront the challenges of developing highly scalable, high-performance, and robust features and systems that deliver cutting-edge AI product experiences. At Lightfield, engineers assume full ownership of projects from inception to impact, collaborating across various functions and pushing the boundaries of what's achievable in applied AI systems development. You will be working with a talented team to deliver industry-leading solutions and play a pivotal role in shaping the product and technical direction of Lightfield.What You Will DoPartner with product leaders to outline strategic initiatives, pinpoint key customer challenges, and translate requirements into technical execution.Design, build, and maintain intricate full-stack product features and systems, ensuring reliability, scalability, and high performance.Create observability and metrics to facilitate smooth operations, proactive issue identification, and ongoing enhancements.Lead technical design discussions, mentor colleagues at various levels, conduct comprehensive code reviews, and help establish engineering best practices and standards.Contribute to the development of a top-tier engineering team through recruitment, mentorship, and knowledge transfer.Who You Are5+ years of software development expertise, with a solid foundation in both front-end and back-end technologies.Proven experience in constructing large-scale, high-performance, and maintainable systems and products, utilizing modern programming languages and frameworks.

Join us in making a difference! GoFundMe is the leading platform for community-driven fundraising, dedicated to empowering individuals and nonprofits to support one another. Since its inception in 2010, our community has successfully raised over $40 billion, making a significant impact on countless lives. We are currently looking for a Senior Staff Software Engineer for our Identity Platform. In this pivotal role, you will be the technical authority responsible for the architecture, scalability, and reliability of our identity platform—the cornerstone on which all product teams, enterprise customers, and internal services rely. Your contributions will directly influence how millions of users engage with GoFundMe and how engineering teams develop identity-dependent functionalities confidently. As a vital technical leader, you will have the opportunity to shape the convergence of consumer and enterprise identity into a cohesive, secure platform, ensuring significant impact for the organization, our engineering teams, and the individuals we serve. If you are passionate about tackling substantial systems problems comprehensively while enhancing trust, personalization, and supporting vital causes, we want to hear from you! This is a hybrid role requiring three days per week in our office. We are only able to consider candidates located in or willing to relocate to San Francisco, CA.

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.