Senior Full Stack Engineer at StackAI | San Francisco

About StackAIStackAI is a revolutionary no-code AI workflow platform that enables businesses to construct, implement, and expand AI-driven workflows without requiring extensive machine learning expertise. With a growing user base and increasing enterprise adoption, our goal is to democratize access to large language models (LLMs), empowering every business operator—beyond just developers. Supported by Y Combinator and top-tier investors, we are laying the groundwork for the AI-driven future of work.The RoleAs a Senior Full Stack Engineer, you will be instrumental in defining the product and technical architecture at StackAI. Your responsibilities will span the entire technology stack, from crafting scalable backend systems to creating stunning and user-friendly frontend interfaces, and incorporating advanced AI models into our platform. This role offers significant impact, as you will work closely with the founding team, take charge of essential product features, and shape the engineering culture of a rapidly evolving startup.We seek exceptional 10X engineers—innovative builders who can consistently deliver results in a dynamic environment, remain inquisitive, and excel in diverse roles.ResponsibilitiesIn this role, you will:Build and own the entire platform, from backend services and APIs to frontend interfaces.Create robust, scalable backend systems utilizing Python and FastAPI (or similar), with optimized databases (SQL/NoSQL).Design and maintain high-quality user interfaces using React, Next.js, TypeScript, and Tailwind CSS, ensuring polished, intuitive, and responsive user experiences.Integrate new AI models and features into our products for seamless performance and enhanced value.Manage StackAI’s landing and product pages to establish benchmarks for clarity, design, and quality.Collaborate across the stack to connect backend services with frontend applications seamlessly.Engage with design, product, and customers to refine product direction and prioritize user needs.Stay at the forefront of full-stack technologies, promoting best practices and innovative solutions.Assist with customer support as needed; every team member contributes to user satisfaction.

Join us in developing an innovative automation framework driven by large language models to address intricate, real-world workflows. We are in search of a Senior Full Stack Engineer who possesses a solid grounding in software fundamentals and extensive full-stack experience with JavaScript. Your role will involve designing and implementing agent observability tools and managing cloud infrastructure from start to finish. If you are passionate about delivering complete products swiftly and enjoy tackling use cases in applied AI, we invite you to connect with us!About Our TeamThe AI Technology Team, part of our Product Technology Group, acts as BOLD’s internal incubator for applied AI, utilizing cutting-edge large-language models to solve our most challenging problems.Your ResponsibilitiesDevelop agent observability tools from the ground up.Implement real-time monitoring and observability systems for automated workflows.Design scalable and distributed cloud infrastructure.Integrate with existing backend services.Establish production monitoring and alert systems following best practices.Optimize performance and resource usage at scale.Create robust error handling and advanced agent recovery mechanisms.Deliver quickly while ensuring architectural soundness.Make informed technical decisions that enhance the overall system.

About the Role PlanetArt is looking for a Senior Full Stack Engineer in Calabasas, California. This position works across both front-end and back-end systems to create applications that are reliable and easy to use. The role focuses on building scalable features and improving the overall performance of our platform.

Welcome to Bugcrowd! Since our inception in 2012, we have been at the forefront of empowering organizations to reclaim control and stay ahead of malicious actors. By harnessing the collective ingenuity and expertise of our customers alongside a trusted alliance of elite hackers, we have developed our patented data and AI-powered Security Knowledge Platform™. Our diverse network of hackers excels in uncovering hidden vulnerabilities and quickly adapting to evolving threats, including zero-day exploits. With our unparalleled scalability and adaptability, our data and AI-driven CrowdMatch™ technology identifies the ideal talent for your unique security challenges. Join us in ushering in a new era of modern crowdsourced security that outstrips cyber threats. Discover more at www.bugcrowd.com. With headquarters in San Francisco and New Hampshire, we are backed by esteemed investors such as General Catalyst, Rally Ventures, and Costanoa Ventures.Job SummaryWe are seeking a Senior Full Stack Engineer to lead technical initiatives across various teams and subsystems, taking ownership of system architecture and development across the technology stack. In this role, you will drive technical innovation, mentor fellow engineers, and advocate for process improvements that benefit the organization as a whole. Your decisions will significantly influence department-level business outcomes, and you will provide strong leadership within and across scrum teams to ensure alignment with our architectural vision.

Join our innovative team at Northwestern Mutual as a Senior Full Stack Engineer. In this pivotal role, you will be responsible for designing, developing, and maintaining robust web applications to enhance user experiences. You will collaborate with cross-functional teams to deliver high-quality software solutions that meet business needs.

Join our dynamic team as a Senior Full Stack Engineer at Northwestern Mutual. In this role, you will leverage your extensive expertise in full stack development to create innovative solutions that enhance our customer experiences. Collaborating with cross-functional teams, you will design, build, and maintain robust applications using modern technologies. Your contributions will directly impact our mission to help clients achieve financial security.

Join our dynamic team at Monks as a Senior Full-Stack Engineer. In this pivotal role, you'll be responsible for designing, developing, and maintaining sophisticated web applications. We are looking for a passionate engineer who thrives in a collaborative environment and is eager to tackle complex challenges.

Sift’s Gravity team is the core engineering group behind the company’s Digital Trust & Safety platform. This team builds and maintains the foundational components, abstractions, and infrastructure that enable other engineering teams to work more efficiently. Internal teams are the main users of Gravity’s work, and the team’s impact is measured by how much they simplify workflows while keeping the platform maintainable, cost-effective, and reliable. This Senior Full-stack Engineer position is fully remote within the USA and calls for a versatile engineer who can work across both backend systems and frontend interfaces. Technical Stack Backend: Java, Dropwizard, GCP, Kubernetes, Kafka, BigTable, Spanner Graph DB, Postgres, Redis, gRPC, Python, Apache Airflow, Snowflake, BigQuery Frontend: ReactJS What you will do Design and improve scalable, distributed platform components that serve as reliable building blocks for Sift’s ecosystem, even under heavy load. Develop engineering solutions that address complex customer and platform requirements at scale, supporting product teams as they launch new features. Collaborate with engineers from Gravity and other teams to create and maintain shared services, data models, and libraries used across the company. Continuously refine platform engineering practices, tools, and guidelines to ensure secure, compliant, and cost-effective operation of core systems. Growth and Learning Tackle high-load platform challenges to enhance core components and develop new capabilities. Grow professionally through tri-annual Growth Cycles, moving beyond traditional performance reviews. Join Tech Talks to learn about building components that manage petabytes of data with strong fault tolerance. Experiment and innovate during the bi-annual Hackathon.

About Us:At Zealthy, we are dedicated to revolutionizing healthcare by ensuring that high-quality services are accessible to everyone, regardless of their location. Our mission is to develop the largest and most trusted virtual healthcare platform in the world, transforming the delivery of care for individuals everywhere.Founded by a successful healthcare entrepreneur with a history of scaling businesses to impressive valuations, Zealthy is poised for sustainable growth as we strive to fulfill our ambitious vision. Our relentless focus on quality and accessibility is at the core of everything we do.Our team is committed to making a difference in patients' lives. While our in-office work culture typically runs Monday to Friday and often extends beyond standard hours, the true satisfaction comes from the impact we make. As a full-time team member, you will not only contribute to shaping the future of healthcare but also enjoy the benefits of equity ownership, as we believe in sharing our success with every contributor.If you are not ready to fully commit to your role and contribute to our vision of creating the world's largest and highest quality telemedicine company by working on-site four days a week, we kindly ask you to refrain from applying.Join us in redefining the future of healthcare.The Role:We are currently seeking a dedicated Full Stack Developer to join us full-time. Please note that this is an in-person role located in New York, NY. If you are looking for remote or hybrid opportunities, this position may not be the right fit for you.What You'll Do:You will begin your journey as a Full Stack Software Engineer at Zealthy, joining a team of five full-time engineers. You will work closely with the Founder/CEO, who oversees product development. Your initial focus will be on iterating our early product build to ensure it’s primed for scaling and enhancing access to high-quality healthcare.Participate in daily standup meetings, weekly sprint discussions (or a more fluid Kanban process), and hold yourself accountable to an ambitious product development roadmap.Being an early-stage startup, you will often wear multiple hats, engaging in both front-end and back-end development, and possibly taking part in or leading system architecture or DevOps decision-making.As the organization grows, there will be opportunities for you to step into a leadership role, should your performance be strong and you express a desire to lead. This will be an ongoing conversation as you integrate into the team.

About AbridgeAbridge, founded in 2018, is dedicated to enhancing understanding in the healthcare sector. Our innovative AI-driven platform is specifically designed for medical conversations, streamlining clinical documentation processes while allowing healthcare professionals to concentrate on what truly matters—their patients.Our state-of-the-art technology converts patient-clinician dialogues into structured clinical notes in real-time, integrating seamlessly with electronic medical records (EMRs). With our unique Linked Evidence framework and auditable AI, we are the only organization that aligns AI-generated summaries with factual data, enabling providers to swiftly trust and verify outcomes. As trailblazers in the realm of generative AI for healthcare, we are setting benchmarks for the ethical application of AI across healthcare systems.Our expanding team consists of practicing MDs, AI experts, PhDs, creatives, technologists, and engineers, all collaborating to empower individuals and make healthcare more comprehensible. We have offices in the vibrant Mission District of San Francisco, the trendy SoHo area of New York City, and East Liberty in Pittsburgh.The RoleWe are seeking dynamic Senior Integrations Engineers to join our rapidly growing team! This pivotal role will support our expansion during this hyper-growth phase. You will be instrumental in designing, developing, and scaling integrations that drive our product capabilities. Collaborating with fellow engineers, implementation specialists, support staff, and product managers, you will create both real-time and batch data integrations with our partners and clients.What You’ll DoDesign, build, and maintain robust integrations and infrastructure to scale our business.Develop secure, high-quality healthcare integrations utilizing REST-like APIs, FHIR standards, and third-party APIs.Work closely with our health system customers to implement, troubleshoot, and support integrations, engaging confidently with external partners and stakeholders.Enhance existing systems with new features, improving performance, stability, quality, and security.Promote high coding standards, improve codebase quality of life, contribute to documentation, and help manage technical debt.Foster user empathy and maintain a user-centric approach in all development efforts.Communicate effectively within and on behalf of our cross-functional product delivery teams, collaborating across various disciplines.

Role Overview rockstar-3 is hiring a Senior Full-Stack Engineer in New York, NY. This role focuses on building and improving applications across both front-end and back-end. The work centers on creating software that supports user needs and business goals. What You Will Do Develop and maintain applications using front-end and back-end technologies Collaborate with team members to design features and solve technical challenges Contribute to projects that improve user experience and support business growth Location This position is based in New York, New York, United States.

We are seeking a talented and motivated Senior Full Stack Engineer to join our dynamic team at peek. In this fully remote role, you will play a crucial part in designing, developing, and maintaining web applications that enhance user experience and drive our business forward.Your expertise will be vital in both front-end and back-end development, working with cutting-edge technologies to create scalable and efficient solutions. If you are passionate about coding, collaboration, and innovation, we want to hear from you!

The future of AI begins with high-quality data.At HumanSignal, we are creating the platform that enables the creation, curation, and evaluation of that data. From fine-tuning foundational models to validating behaviors of agents in production, our tools play a crucial role for leading AI teams, ensuring that models reflect real-world signals, not noise.Our open-source product, Label Studio, has risen to become the de facto standard for labeling and evaluating data across various modalities—ranging from text and images to time series and agents-in-environments. With over 250,000 users and hundreds of millions of labeled samples, it stands as the most widely adopted open-source solution for teams focused on developing AI systems.Label Studio Enterprise enhances this foundation by incorporating the security, collaboration, and scalability features essential for supporting mission-critical AI pipelines—fueling everything from model training datasets to evaluation test sets and continuous feedback loops. We started our journey before foundation models were mainstream, and we are committed to advancing now that AI is reshaping the world. If you are eager to assist leading AI teams in building smarter and more accurate systems, we would love to connect.This is a product-engineering role: not merely “build what you’re told,” but rather shape what we build—own the problem, propose solutions, and deliver outcomes that are meaningful to users and the business.

At Bellese, we are a mission-driven Digital Services Company dedicated to revolutionizing technology solutions in civic healthcare. Our commitment is to improve public health outcomes through innovative approaches.Guided by the principles of service design, we seek to understand the underlying motivations in the healthcare journey for patients, caregivers, providers, payers, and policymakers. Our aim is to create and implement solutions that eliminate confusion, enhance clarity, facilitate informed decision-making, and streamline processes, allowing us and our partners to focus on delivering superior health outcomes by enhancing patient care while minimizing costs and burdens.The Team you will be joining: HQROur team is responsible for the maintenance and enhancement of software utilized by the Centers for Medicare and Medicaid Services (CMS), which supports the Hospital Quality Reporting program. Thousands of hospitals nationwide rely on these systems to submit quality measure data reflective of the care provided to beneficiaries in their facilities. Our mission is to continually modernize these systems while enhancing them to alleviate provider burden and reduce costs to CMS. We achieve this through Human-Centered Design (HCD) and service design practices, product thinking, and proficient engineering. At Bellese, we are unwaveringly focused on empowering providers to prioritize improvements in the quality and safety of patient care. As a Senior Engineer, you will:Influence: Make a substantial impact on the entire team, not limited to specific segments.Technology: Research, develop proofs of concept, and introduce cutting-edge technologies.System: Take ownership of the technical design, development, maintenance, and operational accountability for multiple projects or products.People: Mentor colleagues to accelerate their career growth and inspire participation.Process: Uphold team processes, ensuring everyone comprehends the associated benefits and trade-offs.You will work on:Utilizing GoLang, Python, and Java to develop, deploy, and maintain backend applications.Managing version control systems using Git and GitHub.Implementing CI/CD processes with Jenkins.Engaging in frontend development with Angular, HTML, and TypeScript.Executing database development using SQL (PostgreSQL).Leveraging cloud infrastructure with Amazon Web Services (AWS).Applying Infrastructure as Code (IaC) principles with Terraform.

Join our dynamic team at monks as a Senior Full-Stack Engineer. In this pivotal role, you will be at the forefront of developing innovative web solutions that enhance user experiences and drive business success. With a strong focus on both front-end and back-end technologies, you will collaborate with cross-functional teams to deliver high-quality software that meets the needs of our clients.

jobgether seeks a Senior Full Stack Engineer located in the US. This position calls for hands-on work on both front-end and back-end projects. The team values engineers who focus on building dependable systems and enhancing the way users interact with products. Responsibilities Design, build, and maintain features across the entire technology stack Collaborate with colleagues on projects that help guide the product’s direction Create solutions that improve both user experience and system reliability Requirements Proven experience in front-end and back-end development Track record of writing high-quality code and working well with others Genuine interest in shaping technology that makes a difference for users

About SolaceAt Solace, we are on a mission to transform the U.S. healthcare landscape, which is often perceived as convoluted and inaccessible. With a staggering 88% of U.S. adults lacking the health literacy to navigate the system effectively, our goal is to simplify healthcare by connecting patients with experienced advocates and empowering them with the tools to make informed decisions for better health outcomes.Founded in 2022, we are a rapidly growing Series C startup backed by renowned investors including Inspired Capital, Craft Ventures, Torch Capital, Menlo Ventures, Signalfire, and IVP. Our dedicated team operates in a fast-paced environment, committed to our mission and continuously seeking innovative solutions.Solace is not a place for complacency; we are here to redefine healthcare with urgency, precision, and empathy. If you are eager to challenge yourself, enhance your skills, and contribute to groundbreaking work alongside a passionate team, you belong with us. We thrive on intensity and are proud of it.About the RoleAs a Senior Full Stack Engineer, you will collaborate with an exceptional team of engineers while taking full ownership of your product workflow, from initial design to deployment. You will be expected to work efficiently and commit code on a daily basis, experiencing the thrill of seeing your contributions impact real users regularly as you build an innovative product from the ground up.You are a seasoned engineer adept at identifying challenges and crafting top-tier solutions. Your curiosity drives you to tackle complex, ambiguous problems where the path to resolution may not yet be clear. You take pride in your craft, possess outstanding communication skills, and are receptive to feedback. Mistakes are seen as learning opportunities for you, and above all, you value ownership and find large organizations constraining.What You’ll DoTranslate product requirements into high-quality, production-ready code while delivering an unparalleled user experience.Design and develop new user-facing features, maintaining a focus on performance and responsiveness.Collaborate across teams to understand and address user needs effectively.Participate in code reviews, ensuring the codebase remains robust and maintainable.Stay abreast of emerging technologies and apply them to improve our development processes.

Senior Full Stack EngineerAt Obviant, we are revolutionizing the defense sector by developing a comprehensive data source and advanced AI tools for defense acquisition. In a world where decision-makers grapple with outdated processes and fragmented data, we stand out by seamlessly integrating information from thousands of structured and unstructured sources. Our mission is to deliver a clear, cohesive overview of budgets, programs, and the organizations behind them. Whether assisting a company with go-to-market strategies or empowering program managers with vital capabilities, we are dedicated to providing intelligence that drives effective execution. With rapid growth fueled by leading investors and seasoned veterans from the Department of Defense and national security, we are committed to making a difference.We believe in the importance of public sector missions. If you share this belief, we invite you to join our team.Your RoleAs a Senior Full Stack Engineer, you will play a pivotal role in developing the next generation of tools that transform government technology. We prioritize speed and efficiency, and you will be integral to crafting elegant solutions for complex challenges.Key ResponsibilitiesLead feature development from inception to completion, leveraging your insights to shape our design and implementation processes.Engage with the full technical spectrum—from developing robust APIs and type systems to creating user-friendly frontends and component libraries.Collaborate with users to understand their workflows and design solutions that enhance their productivity.Design and implement data visualization tools that simplify complex information.Innovate AI/ML solutions in an industry that has yet to be fully explored by modern technology.QualificationsMinimum of 5 years of full stack development experience, creating solutions that resonate with users.A strong passion for understanding user needs and transforming challenges into effective solutions.Proven track record of owning features from concept to successful implementation.Experience in government, govtech, or defense sectors is a plus, but not mandatory.A deep-seated passion for defense and its associated missions.Comfortable working in the dynamic environment of a fast-growing startup.Ability to obtain and maintain a TS/SCI security clearance.

About SERHANT.SERHANT. stands as the leading global real estate brand, strategically designed for the future marketplace. We deliver exceptional outcomes for buyers, sellers, and developers alike. By transforming the conventional brokerage model, SERHANT. leverages media innovation and content creation, supported by a comprehensive in-house film studio and a unique amplification platform that maximizes visibility for our properties.About the RoleWe are seeking a dynamic Senior Full Stack Engineer who excels in navigating the entire tech stack. You seamlessly transition between frameworks such as Next.js, Hono APIs, SvelteKit, and Postgres with ease. Utilizing AI tools is part of your daily practice, and you compose specifications that facilitate straightforward implementation.Our Stack

Join our innovative team at Vantage as a Senior Full Stack Engineer. In this role, you will leverage your expertise in both front-end and back-end technologies to develop and maintain robust applications. You will collaborate with cross-functional teams to deliver high-quality software solutions, utilizing modern frameworks and best practices.