Frontend Software Engineer

About the Role Siftstack is seeking a Software Engineering Manager (Data) in San Francisco. This leader will guide a skilled team of engineers focused on building data solutions. The role involves setting engineering strategy, overseeing software quality, and supporting a culture that values innovation and high standards. What You Will Do Lead and mentor a team of data engineers Shape and drive the engineering approach for data projects Oversee delivery of reliable, high-quality software Encourage new ideas and continuous improvement within the team Location This position is based in San Francisco, CA.

At Siftstack, we are revolutionizing the development, testing, and operation of modern machines. Our innovative platform empowers engineers with real-time observability over high-frequency telemetry, effectively eliminating bottlenecks and facilitating faster, more dependable development.Founded by a team of experts from SpaceX, Google, and Palantir, Siftstack was inspired by our experience with pioneering projects like Dragon, Falcon, Starlink, and Starship. Our mission-critical infrastructure is designed for precision and scalability, meeting the highest demands of reliability in engineering.As an early-stage engineer at Siftstack, you will not only write code, but you will also play a pivotal role in defining our architecture, shaping our product, and cultivating a culture focused on addressing real engineering challenges. If you thrive on tackling complex technical problems and want to build foundational systems that support intricate machines, we'd love to hear from you.

At Siftstack, we are revolutionizing the way advanced machines are constructed, tested, and managed. Our innovative platform provides engineers with real-time visibility into high-frequency telemetry, removing obstacles and facilitating quicker and more dependable development.Siftstack emerged from our extensive experience at SpaceX working on projects such as Dragon, Falcon, Starlink, and Starship, where the challenges of scaling telemetry, debugging flight systems, and ensuring mission reliability necessitated the creation of groundbreaking infrastructure. Founded by a team with backgrounds in SpaceX, Google, and Palantir, Siftstack is engineered for mission-critical systems where accuracy and scalability are essential.As a pivotal engineer focused on our data infrastructure, you will not only write code but also shape core architecture and contribute to scaling a real-time telemetry platform from the ground up. You will tackle intricate backend systems designed to capture, store, and serve millions of high-frequency data points per second, accelerating iteration cycles for some of the most advanced engineering teams globally.

At Sift, we are revolutionizing the way sophisticated machines are constructed, tested, and managed. Our innovative platform provides engineers with instantaneous visibility over high-frequency telemetry, effectively removing bottlenecks and fostering swifter, more dependable development.Originating from our extensive experience at SpaceX on projects such as Dragon, Falcon, Starlink, and Starship, Sift was created to address the challenges of scaling telemetry, debugging flight systems, and ensuring mission reliability, which necessitated the development of groundbreaking infrastructure. Established by a talented team from SpaceX, Google, and Palantir, Sift is tailored for mission-critical systems where accuracy and scalability are imperative.As a key early engineer concentrating on our data infrastructure, your role will extend beyond mere coding—you will shape foundational architecture and assist in scaling a real-time telemetry platform from its inception. You will engage with intricate backend systems designed to process, store, and deliver millions of high-frequency data points each second, facilitating rapid iteration cycles for some of the world's leading engineering teams.

About Siftstack Siftstack builds core infrastructure for engineering teams designing, testing, and operating complex machines. The platform delivers real-time observability for high-frequency telemetry, helping engineers debug issues quickly, spot failures early, and maintain reliable operations where precision matters most. The founding team brings experience from SpaceX, Google, and Palantir, with backgrounds in projects like Dragon, Falcon, Starlink, and Starship. Siftstack’s technology supports organizations in aerospace, defense, robotics, energy, and industrial sectors, fields where speed and dependability are essential. Role Overview: Enterprise Account Executive The Enterprise Account Executive leads technical sales cycles with engineering teams working on advanced systems. This role partners with Solutions Engineering, Product Management, and leadership to find new opportunities, guide technical evaluations, and close deals that make a real impact for engineering customers. Siftstack looks for someone who thrives on selling technical products, enjoys working directly with engineers, and wants to shape the go-to-market approach of a growing company. What You Will Do Drive New Customer Acquisition Find and develop new business with engineering-driven organizations across the United States. Reach out to target accounts and build relationships with both technical and executive contacts. Create account strategies and manage a pipeline of qualified opportunities. Lead Technical Sales Cycles Run discovery sessions to understand system architecture, telemetry needs, and engineering pain points. Work with Solutions Engineering and Product teams to support technical assessments and pilot projects. Define success criteria and guide evaluations toward clear technical and business goals. Close High-Value Deals Manage deals from first contact through contract signing. Align technical validation with commercial buying processes. Handle procurement steps to ensure deals close successfully. Location This position is based in San Francisco, CA.

About SiftstackSiftstack is an innovative data visualization and infrastructure platform that empowers the brightest engineers to construct the hardware of tomorrow. We simplify complex telemetry data, enabling our clients—engineers at the forefront of aerospace, robotics, transportation, and defense—to push the limits of what’s possible. With Siftstack, they gain the insights they need to accelerate their groundbreaking projects.In the realm of engineering, merely having access to vast amounts of data doesn’t guarantee accelerated progress. It’s the right tools that transform raw data into actionable insights, and that’s precisely what we provide.This role presents a unique opportunity to contribute significantly to advancements in science and technology. If you’re ready to embrace the challenge, we want to hear from you.About the RoleWe are seeking a highly skilled Product Designer to join our Design team at Siftstack. You will take ownership of essential user experiences on our platform, conducting user research, designing interactions, and creating interactive prototypes that engineers will depend on daily to monitor complex telemetry from advanced hardware systems.This is a hands-on, detail-oriented role where you will collaborate closely with Product Management and Engineering throughout the entire product development process—from initial problem identification to the final product launch—using our design system as your foundation while also enhancing it. We are looking for someone who thinks systemically yet is attentive to the finer details and is genuinely enthusiastic about the possibilities that hybrid AI design workflows offer. A willingness to engage directly with users in their environments, such as a spacecraft cleanroom, is essential. If this aligns with your passion, let’s connect!Key ResponsibilitiesConduct user research, including on-site visits, to deeply understand the needs and workflows of advanced hardware engineers.Design core interactions and workflows across Siftstack’s platform.Collaborate closely with Product Management and Engineering throughout the product lifecycle, from defining problems to delivering features.Utilize and enhance our Figma-based design system to create new components and patterns that address real customer challenges and improve engineering efficiency.Adopt hybrid AI design workflows to rapidly explore ideas, iterate swiftly, and produce high-quality deliverables in a fast-paced startup environment.

At Sift, we're revolutionizing the way modern machines are constructed, tested, and managed. Our innovative platform provides engineers with real-time insights into high-frequency telemetry, effectively removing bottlenecks and facilitating quicker, more reliable development processes.Sift originated from our work at SpaceX, where we tackled projects like Dragon, Falcon, Starlink, and Starship. The need for scalable telemetry, efficient debugging of flight systems, and guaranteed mission reliability pushed us to create new infrastructure. Founded by a team of experts from SpaceX, Google, and Palantir, Sift is designed for mission-critical applications where accuracy and scalability are paramount.As an early engineer at Sift, your role extends beyond merely coding; you will define the architecture, shape the product, and influence the company's culture focused on addressing significant engineering challenges. If you seek complex technical problems and the chance to build foundational systems for sophisticated machinery from the ground up, we want to connect with you.

At Siftstack, we are revolutionizing the development, testing, and operation of modern machines. Our innovative platform provides engineers with real-time observability over high-frequency telemetry, effectively removing bottlenecks and accelerating the development process.Emerging from our groundbreaking work at SpaceX on projects including Dragon, Falcon, Starlink, and Starship, Siftstack was founded by an exceptional team with experience from SpaceX, Google, and Palantir. We are dedicated to building mission-critical systems where precision and scalability are essential.As a senior engineer at Siftstack, you will not just write code; you will have a significant role in shaping the architecture, guiding the product's evolution, and influencing the culture of a company that tackles real engineering challenges. If you are eager to face complex technical issues and contribute to foundational systems for innovative machines, we want to connect with you.

Join Whatnot as a Software Engineer specializing in Data. In this pivotal role, you will harness your technical expertise to develop innovative solutions that enhance our data capabilities. Collaborate with cross-functional teams to design, implement, and optimize data-driven applications that will support our growing user base.The ideal candidate will have a passion for technology and a drive to improve processes through data insights. This is a unique opportunity to shape the future of our platform and make a significant impact on our business.

About RoxAt Rox, we are dedicated to empowering individuals to excel in their work.Our innovative platform enhances seller performance with autonomous revenue agents that handle manual tasks, allowing sales professionals to concentrate on their primary role: selling. Just as coding agents exponentially increased engineering productivity, our revenue agents elevate customer engagement.We are revolutionizing the revenue landscape by developing the world’s first revenue operating system, integrating everything from the application layer to the system of context. At Rox, we envision a future where humans become orchestrators, while our agents efficiently manage the complete customer lifecycle.Rox serves Global 2000 leaders across sectors such as banking, hardware, construction, and sovereign AI, while also supporting prominent AI innovators like Ramp and Cognition.This success is built on a steadfast belief in our mission and an unwavering commitment to achieving it.Join Our TeamOur world-class team is the cornerstone of our success, tasked with redefining business operations.Team members have:Founded and exited successful startupsHeld top positions at Google, AWS, Confluent, and New RelicAchieved gold medals in IMO and IOIPublished groundbreaking research papersWe are proud to be backed by top-tier investors, having raised $50M from Sequoia (Alfred Lin), General Catalyst (Hemant Taneja), Google Ventures, Elad Gil, and Chris Ré.Core PrinciplesTaste: Craft exceptional experiences.Every detail matters; we ensure that each interaction is optimized for the seller’s success and satisfaction. We strive for perfection and continuously seek ways to delight our users.Obsession: Commit without reservation.We are dedicated to our craft, proactively addressing customer needs and constantly improving our skills and products.Action: Deliver results.Execution is key; we prioritize thoughtful, rapid decision-making and immediate delivery, fostering a culture of trust.

CHAOS Industries is pioneering the future of defense technology by creating distributed sensor networks that swiftly detect threats to warfighters, borders, and critical infrastructure. Our innovative Coherent Distributed Networks (CDN™) technology integrates data from radars, electro-optical/infrared (EO/IR) sensors, and electronic warfare systems into a cohesive sensing platform that operates seamlessly across land, sea, and air.Role OverviewWe are seeking a talented Software Engineer to develop and enhance the data systems that enable this critical technology. In this role, you will design data pipelines that transport sensor data from remote edges to decision-makers in real time, integrate diverse data feeds, and build the data infrastructure that powers our flagship product, Vanquish™. Your work will have a direct impact on accelerating threat detection and improving outcomes for defenders in the field. You will collaborate with hardware engineers, systems engineers, and operators to identify essential data and ensure it reaches its destination efficiently. As we expand, you will play a crucial role in shaping the architecture of the CHAOS Operating System—a unified data backbone connecting engineering, operations, and manufacturing.

Join middesk as a Software Engineer specializing in our Data Platform, where you will play a pivotal role in building robust systems that empower our data-driven initiatives. You will collaborate with cross-functional teams to design, implement, and optimize data solutions that enhance our products and services.

At Ripple, we’re transforming the way value is transferred globally, making it as seamless and instantaneous as information sharing. Our innovative crypto solutions empower financial institutions, businesses, governments, and developers to enhance the global financial landscape. By joining our talented team, you’ll not only take part in this significant change but also cultivate your career in a supportive environment where collaboration is key.If you’re eager to make a tangible impact and explore remarkable career advancement opportunities, we invite you to join us in creating real-world value.The Role:As a Software Engineer II, you will be a pivotal member of Ripple’s Data Engineering team. Your responsibilities will include the implementation of data ingestion and transformation processes that enable analytics, machine learning, and various business functions. You’ll have a keen eye for identifying system bottlenecks and will constantly seek improvements to enhance cost and performance efficiency. Your hands-on approach will drive crucial technical decisions, ensuring that quality outcomes are achieved while maximizing customer value. Collaboration across various functions—including data science, product management, application engineering, compliance, and finance—will be key to your success in this role.

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.

About GridwareGridware is an innovative technology company headquartered in San Francisco, dedicated to safeguarding and enhancing the resilience of the electrical grid. We have revolutionized grid management with our pioneering approach known as Active Grid Response (AGR), which emphasizes careful monitoring of the electrical, physical, and environmental factors that influence grid reliability and safety. Our cutting-edge AGR platform utilizes high-precision sensors to identify potential problems early on, facilitating proactive maintenance and fault mitigation. This holistic strategy significantly enhances safety, minimizes outages, and ensures optimal grid performance. We are proud to be supported by leading climate-tech and Silicon Valley investors. To learn more, visit www.Gridware.io.Role OverviewAs the Software Engineering Manager at Gridware, you will be at the forefront of leading a talented team of engineers who are focused on developing software that enhances the reliability and resilience of the electrical grid. This role combines technical leadership with effective people management; you will remain engaged with coding and architectural decisions while guiding your team to deliver high-impact, mission-critical systems. Collaborating closely with product, data, and business stakeholders, you will turn real-world infrastructure challenges into scalable, cloud-native solutions, while fostering the growth of engineers into leaders who elevate the standards of the entire organization.

At Fastly, we empower individuals to forge deeper connections with the things they cherish. Our cutting-edge edge cloud platform enables clients to swiftly, securely, and reliably craft exceptional digital experiences by processing, serving, and safeguarding their applications as close to their end-users as possible — right at the edge of the Internet. This platform is tailored to leverage the modern internet, is highly programmable, and supports agile software development methodologies. Our clientele includes renowned global brands, such as GitHub, Yelp, Paramount, and JetBlue.Join us in our mission to create a more trustworthy Internet.Posting Open Date: March 13th, 2026Anticipated Posting Close Date*: May 30th, 2026*Job posting may close early due to the volume of applicants.Data EngineerAs part of Fastly's Analytics team, you will empower leaders across the organization with actionable data that drives essential business decisions. We are focused on expanding and enhancing our premier internal data platform. In your role as a Data Engineer, you will play a pivotal part in transforming our data infrastructure, optimizing data pipelines on Google Cloud Platform (GCP), scaling the ingestion of complex data sources, and adhering to best practices for performance and reliability. This is your chance to contribute to significant projects within a dynamic, collaborative, and innovative workspace, supporting data scientists, analysts, and business analysts across our organization.

About UsAt Rox, we are dedicated to empowering individuals to achieve their greatest potential. Our innovative platform enhances sales efforts through autonomous revenue agents, allowing sellers to prioritize their expertise in selling. Just as coding agents transformed engineering, revenue agents amplify customer interactions.We are revolutionizing the revenue stack by developing the world’s first revenue operating system, encompassing everything from the application layer to systems of context. At Rox, we envision a future where humans evolve into orchestrators while agents handle the complete customer lifecycle.Our solutions support Global 2000 leaders across sectors such as banking, construction, and AI, partnering with industry giants like Ramp and Cognition.Our success stems from a united belief in our mission and an unwavering commitment to making it a reality.The TeamOur world-class team is the backbone of our innovative approach to redefining business operations.Our team members have:Founded and successfully exited companiesHeld top roles at Google, AWS, Confluent, and New RelicWon gold medals in international mathematics competitionsPublished groundbreaking research papersWe are proud to be backed by leading investors, having raised $50 million from Sequoia (Alfred Lin), General Catalyst (Hemant Taneja), Google Ventures, Elad Gil, and Chris Ré.Core PrinciplesTaste: Craft beautiful experiences.We meticulously focus on every detail, striving to ensure that each interaction not only helps sellers accomplish their tasks but also enhances their experience. We are relentless in our pursuit of excellence, always exploring new ways to delight our sellers.Obsession: Commit unreasonably.We are dedicated to our craft, responding to customer needs proactively and driving value even before they ask. Our commitment to continuous learning and self-improvement is unwavering.Action: Get it done.Execution is key; we prioritize thoughtful yet swift decision-making and immediate delivery. Trust is essential in our field, and we earn it through our actions.

Join Our Team at Hayden AIAt Hayden AI, we are dedicated to revolutionizing public transit and government operations through innovative computer vision technologies. Our mission is to tackle real-world challenges faced by transit systems, enabling them to enhance safety, optimize transportation, and contribute to a sustainable future.We develop advanced mobile perception systems designed to improve transit flow and street safety. As a part of our dynamic team, you will work at the forefront of technology, utilizing AWS and GCP cloud services while developing cutting-edge Linux-based edge devices.Role OverviewWe seek an enthusiastic Senior Software Engineer to enhance our data platform, ensuring it is reliable, scalable, and high-performing. In this role, you will design and construct core data infrastructure, optimize data pipelines, uphold data quality standards, and collaborate closely with product and data science teams to deliver transformative data solutions that drive business insights.

About AbridgeFounded in 2018, Abridge is dedicated to enhancing understanding in healthcare. Our innovative AI-driven platform is designed specifically for medical conversations, streamlining clinical documentation and allowing healthcare professionals to concentrate on what truly matters—their patients.Our enterprise-grade technology converts patient-clinician discussions into structured clinical notes in real-time, with robust EMR integrations. Leveraging our unique Linked Evidence and auditable AI, we provide the only solution that aligns AI-generated summaries with factual data, enabling providers to trust and verify outputs efficiently. As trailblazers in generative AI for healthcare, we are establishing industry benchmarks for the ethical integration of AI across health systems.We are a dynamic team of practicing MDs, AI scientists, PhDs, creatives, technologists, and engineers committed to empowering individuals and making healthcare more intelligible. Our offices are located in San Francisco's Mission District, New York's SoHo neighborhood, and Pittsburgh's East Liberty.The RoleJoin our rapidly expanding US-based Data Engineering team as a Data Engineer and play a pivotal role in revolutionizing the medical field with our generative AI products. In this essential position, you will design and optimize large-scale data infrastructure to inform business strategies and drive machine learning research.What You’ll DoDevelop and sustain scalable data services, pipelines, and storage solutions for the ingestion of unstructured application data for machine learning training and evaluation.Create and oversee OLAP databases, ELTs, and general data tools to support analytics, business decision-making, and product features.Collaborate closely with frontend and backend engineers, product managers, and analysts.Enhance data infrastructure to improve system throughput, latency, and reliability.Identify and resolve issues detected through data operation monitors, tools, and reports.Design data integration solutions and establish a data quality framework.What You’ll Bring5+ years of experience in Data Engineering or Backend Engineering focused on data systems.Proficiency in at least one general-purpose programming language (e.g., Python, Java, Scala) and SQL (any variant).Experience with at least one modern cloud service provider (GCP, AWS, Azure, etc.).