Senior Full Stack Engineer I at DoubleVerify | New York City

Position OverviewJoin our innovative team as a Senior Full Stack Engineer I at DoubleVerify, where you will play a pivotal role in enhancing our full-stack billing system. Your expertise will help our clients leverage DoubleVerify’s extensive suite of products through the development of robust backend services and user-friendly frontend applications. We are …

About MercivMerciv is an innovative AI and data analytics startup focused on revolutionizing how enterprises harness strategic intelligence. Our goal is to empower organizations to leverage data effectively, derive insightful conclusions, and make informed strategic decisions through advanced AI technologies and dynamic forecasting.We envision a future where every business decision is guided by timely and relevant data, seamlessly integrating AI capabilities with human insight. Our groundbreaking technology:Integrates diverse data sources into a unified intelligence layerEnhances human decision-making with autonomous AI analysisReveals insights and opportunities overlooked by conventional toolsPredicts outcomes, enabling teams to navigate uncertainties with clarityEmpowers organizations to proactively shape their marketsOur solutions are not only robust and scalable but also designed to be intuitively usable by teams across the organization, beyond just data specialists. With $14M in seed funding secured, we have cultivated a strong engineering culture and are ready to launch publicly after nearly two years in stealth mode.About the TeamWe are developing an agentic AI platform that is transforming how businesses interact with data. Merciv connects an organization's complete data ecosystem with external insights such as social media trends, industry reports, and consumer behavior signals, streamlining workflows that traditionally require extensive analyst time.We prioritize simplicity and intuitiveness in our powerful tools, ensuring that every feature is user-friendly and every component is interactive. Our aim is for users to engage with Merciv and feel empowered to achieve more than before.Our agile, innovative team thrives on autonomy and creativity, providing each member a sense of ownership. By employing a Directly Responsible Individual (DRI) model, you will oversee significant product features from conception through to launch, embracing multiple roles by design.If you are excited about contributing to a fast-paced, innovative startup culture and making a significant impact on client businesses, Merciv is the ideal place for you. Join us as we redefine retail intelligence and deliver exceptional value to our clients.

Traba connects businesses with vetted industrial workers through technology designed to streamline staffing and supply chain operations. The team builds autonomous, orchestrated multi-agent AI workflows to make these processes more efficient. Backed by investors including Founders Fund, Khosla Ventures, and General Catalyst, Traba is focused on transforming how industrial labor is managed. Role overview This full-stack software engineer position is part of Traba’s founding team in New York City. The role centers on building and scaling the core product suite. Projects include developing a mobile app for workers using React Native, creating a web platform for business clients with React and Node.js, and building internal tools to support day-to-day operations. What you will do Develop and maintain the React Native mobile app used by workers Build and enhance the React and Node.js web platform for business clients Create tools that support Traba’s operations team Work closely with the CTO to shape the product roadmap and make key technology decisions Contribute to the foundational technology platform as an early team member Location This position is based in New York City, NY.

WalkMe, an SAP company, has revolutionized the Digital Adoption Platform (DAP), empowering business leaders to fully leverage technology in today's intricate digital environment. By utilizing WalkMe's innovative features—guidance, engagement, insights, and automation—employees enhance their productivity, executives achieve greater visibility into digital usage, and organizations optimize their digital assets, facilitating successful digital transformation.In partnership with SAP, WalkMe transforms the digital transformation journey, enabling businesses to unlock the full potential of SAP's powerful ERP solutions while seamlessly improving user experience and productivity through WalkMe's user-friendly digital adoption platform.We are seeking a Full Stack Software Engineer who is enthusiastic about web development and product innovation, eager to tackle complex challenges, and aspires to collaborate with an exceptional team.Join us on an exciting journey to create an outstanding product in the online user experience space. Your role will extend beyond coding, allowing you to significantly influence our strategic direction.We are in search of individuals who perceive the world through a unique lens—those who are passionate about clean design, high performance, and pushing technological boundaries to the utmost.If you are committed to developing groundbreaking products, making a meaningful impact, and striving to be part of one of the fastest-growing and most successful startups—WalkMe is your ideal destination!This role will support our Federal business, so US Citizenship is required.Hybrid work schedule - 3 days a week in office.

Join us at phia as a Full Stack Engineer Intern, where you'll have the unique opportunity to work on innovative projects and gain hands-on experience in both front-end and back-end development. You will collaborate with a talented team of engineers to create scalable and efficient web applications that drive our mission forward.

Join Allium: Pioneering Blockchain Data SolutionsTaming the Chaos of Blockchain DataAt Allium, we believe that blockchain data should be accessible, clear, and efficient. Since our inception in late 2021, we have recognized the complexities surrounding blockchain data, which, despite being public and free, is often cumbersome to interpret and manage. For example, answering a simple query like “Who are the biggest Ethereum token holders over time?” typically requires substantial engineering effort, including running RPC nodes, ingesting large datasets, and performing extensive data transformations.Overcoming the Challenges of Data AccessThe inherent structure of blockchains has traditionally favored Writes (data entry) over Reads (data retrieval). This design choice was made to enhance transaction throughput and build robust consensus algorithms. Consequently, extracting reliable data at scale has become a significant challenge.The Need for Expertise in Blockchain DataParsing and interpreting blockchain data necessitates both specialized knowledge and advanced data manipulation skills. As noted by Columbia Professor Tim Roughgarden, “Blockchains are (virtual) computers, not databases.” This complexity gives rise to diverse data schemas tailored for specific applications, making standardization crucial yet difficult. Our team is dedicated to transforming intricate technical outputs into comprehensible insights on concepts like tokens, NFTs, stablecoins, and decentralized exchanges (DEXs).Allium: Simplifying Blockchain Data QueriesAllium is committed to streamlining the chaos of blockchain data through our innovative approach to data ingestion, sanitization, and standardization. To date, we have archived data from over 100 blockchains, accumulating petabytes of information and continuously expanding.A Mission to Organize Blockchain DataJust as Google and Bloomberg organized the world’s public financial and web data, Allium is on a mission to do the same for blockchain data. We are at a pivotal moment in history where indexing vast public datasets is essential for industry advancement, and we are proud to support innovators and contribute to the growth of this sector.

OffDeal is pioneering the future of finance as the world's first AI-native investment bank tailored for small businesses. Rather than simply providing AI solutions to established firms, we are reimagining what an investment bank could look like in 2025.While traditional Wall Street strategies excel in handling billion-dollar transactions, they often fall short in addressing the needs of smaller enterprises. Conventional firms typically rely on large teams and outdated systems, rendering smaller mergers and acquisitions (M&A) unviable. This gap has left countless small business owners without reliable options for their most critical sales.Our innovative engineering team has developed software that automates over 80% of analyst tasks using AI, allowing our dedicated bankers to concentrate on building trust with business owners and finalizing deals.Recently, we secured $12 million in Series A funding (totaling $17 million) from Radical Ventures and Y Combinator, propelling our rapid growth. Within less than a year, our team has successfully facilitated more than 30 sell-side M&A transactions, providing transformative exits for our clients—and we are just getting started.For more about our journey, explore the following articles:Financial Times ArticleCNBC Video InterviewThe Bull Case for AI-Native InvestmentYour RoleAs a Full Stack Engineer, you will collaborate closely with our CTO to develop our AI-native platform, empowering our investment bankers to enhance their productivity tenfold. Your contributions will significantly influence the transfer of $10 trillion worth of small businesses in the coming decade.Key ResponsibilitiesPartner with our investment banking team to lead projects from conception to deployment.Engage in full-stack development within our 100% TypeScript environment (ReactJS + NodeJS).Utilize cutting-edge AI technologies to enhance our internal systems.

Join a pioneering AI engineering team in New York City, dedicated to creating and scaling innovative AI-driven products that will revolutionize user experiences for millions. Our workspace is akin to a state-of-the-art AI laboratory, merging groundbreaking innovation with the extensive reach of our diverse ecosystem. The team comprises exceptionally skilled AI engineers, full-stack developers, product managers, and designers all committed to expanding the possibilities of AI technology.General InformationWe are on the lookout for extraordinary engineers who have successfully deployed AI features that are actively utilized in production environments. The ideal candidate should possess full-stack capabilities, flourish in dynamic and collaborative settings, and have a fervent passion for crafting seamless user experiences powered by AI.Key ResponsibilitiesDesign, develop, and launch user-centric AI features across various products, including content creation tools, e-commerce recommendations, and messaging platforms.Quickly prototype and refine AI-driven solutions, transforming them into robust production-ready systems.Work in close collaboration with product managers, designers, and fellow engineers to conceptualize, implement, and scale innovative features.Remain informed about advancements in AI technology and utilize them to enhance user experiences.Contribute to the technical vision and strategy for the progression of AI products within the ecosystem.RequirementsA proven history of successfully deploying AI features into production with verifiable user engagement.Hands-on experience with large language models (LLMs), either through APIs or custom implementations, at scale.Proficient full-stack development skills in PHP, Python, or JavaScript.Capability to create high-performance AI-enhanced user interfaces.Preferred QualificationsExperience in developing consumer AI products that have grown to serve large user bases.Strong proficiency in PHP.Familiarity with WordPress, e-commerce platforms, or messaging frameworks.Contributions to open-source projects demonstrating technical acumen and innovative thinking.BenefitsBecome part of a meticulously selected team comprising some of the brightest minds in AI and product development.Open to both on-site and remote candidates.Develop products that will have a direct impact on millions of users across a varied ecosystem.Opportunity to be part of an elite AI laboratory with the capability and reach of a global platform.Long-term, full-time role.

About Sailor HealthSailor Health is dedicated to addressing the urgent mental health crisis affecting older adults. In the U.S., seniors are the demographic with the highest suicide rates but often lack adequate mental health services. With projections indicating that by 2030, over 65 million seniors will represent nearly a quarter of the U.S. population, this issue demands immediate attention.We are developing an innovative platform focused on senior mental health, facilitating connections between older adults, therapists, healthcare professionals, and insurance providers. Our AI-driven operating system enhances care coordination, provides real-time clinical insights, and simplifies insurance billing, allowing therapists to dedicate more time to compassionate care.Our rapid growth and partnership with Medicare enable us to deliver exceptional and affordable psychotherapy to hundreds of patients. We are proud to have the support of distinguished founders from Ramp, Nourish, Headway, Charlie Health, and Spring Health.⭐ About the RoleLocation: HQ - New York City - Remote.We are seeking a Founding Full-Stack Engineer who will spearhead the development of our AI-enhanced platform from its architectural design through to launch. You will collaborate closely with our co-founders to establish the systems and AI infrastructure that drive our platform, including tools for therapists and care navigation support.This is a unique opportunity to create and launch an AI-first product from the ground up at a startup that has achieved exceptional product-market fit. You will be responsible for significant technical decisions, influence our engineering culture, and rapidly bring innovative ideas to fruition. If you thrive in a fast-paced environment and seek to make a meaningful impact through your coding, we want to connect with you.

Welcome to Glide!At Glide, we are revolutionizing the banking experience for today's digital landscape. Our innovative embedded fintech platform enables traditional financial institutions, such as community banks and credit unions, to create cutting-edge digital experiences for their clients.Join our elite team comprised of engineering, product, and growth experts from renowned companies like Stripe, Google, and Amazon. We seek a skilled Full Stack Engineer at the early stages of their career to contribute to the development of our platform. Help us redefine the outdated financial sector!Why You Will Enjoy This Position (Especially as a New Graduate):An exceptional chance to collaborate directly with Glide’s founders and senior engineers, gaining insights from industry leaders.Acquire practical, hands-on experience across the full stack, from architectural design to deployment.Contribute to a nimble, fast-paced startup environment where your code will have a tangible impact.Receive mentorship and learn about engineering best practices, product development, and startup dynamics in a real-world setting.Your Key Responsibilities:Effortlessly navigate between frontend and backend to create a well-tested, secure frontend for our primary web product.Develop reliable and secure user experiences by crafting interfaces that are simple, dependable, and high-performing using tools like TypeScript, React, Node.js, and Next.js.Architect a scalable solution capable of servicing hundreds of thousands of users.Transform designs into beautifully written code.Define a long-term technical strategy and vision for enhancing and expanding our web product suite.Oversee frontend and backend infrastructure and tooling to support an ambitious product roadmap.Essential Qualifications:Proficiency in JavaScript and frameworks such as TypeScript, React, Node.js, and Next.js.Familiarity with modern, responsive HTML & CSS.Experience with data fetching libraries like React Query.

Why Choose Rogo?At Rogo, we are at the forefront of redefining the financial landscape with our groundbreaking AI analyst. Our vision is to empower finance professionals across the globe—from elite investment banks to private equity firms—by providing AI solutions that offer unprecedented speed, accuracy, and insights. We are not merely enhancing financial workflows; we are reinventing them entirely.Joining Rogo is a unique opportunity to be part of a transformative company during a pivotal moment. With a rapidly expanding clientele, a validated product-market fit, and support from distinguished investors, we are poised for swift growth and are setting new benchmarks in the enterprise AI sector.Our team is composed of highly skilled, driven individuals who are passionately committed to our mission. We work with high intensity, own complex challenges, and maintain an unwavering focus on our users. If you excel in a dynamic environment, strive for excellence, and are eager to help shape the future of finance, we welcome you to be part of our journey.

Compensation: $170,000 – $250,000 + meaningful equityCompany OverviewOnyx Odds is a groundbreaking social sports prediction platform that is set to transform the sports landscape. With rapid growth in user engagement and positive reception, we are expanding our team to meet the demands of our innovative product.Backed by significant venture capital, our startup was founded by a Harvard alumnus with experience at Jane Street, positioning us for success in the competitive tech industry.Located in the heart of downtown Manhattan, we offer a vibrant work environment where creativity and innovation thrive.Job DescriptionWe are seeking a talented Full Stack Software Engineer to join our dynamic and lean team. This role offers the unique opportunity to collaborate closely with our founding members on our core product, taking on comprehensive responsibilities from design to deployment. You will have a significant say in product direction and will be instrumental in shaping the technical architecture of the company.Lead projects from initial concept through to production, making key architectural choices and ensuring effective observability.Work directly with the founders to define product direction, prioritize features, and contribute to the roadmap.QualificationsBachelor’s degree in Computer Science or a related field from a reputable university.Proficient in full-stack development with expertise in TypeScript, React, and SQL.Experience in mobile application development, particularly with React Native.3–6+ years of relevant experience in software engineering.Familiarity with developing low-latency systems or performance-sensitive applications is a distinct advantage.A proactive attitude in startup environments, showcasing entrepreneurial spirit, resourcefulness, and a passion for creating user-centric solutions.Interest or background in sports is a plus.Visa Sponsorship: Unfortunately, we are unable to provide visa sponsorship for this role.LocationOur office is situated in the Financial District of New York City. This position offers flexibility for in-person or hybrid work arrangements.Note: We do not offer employment visa sponsorship for this position.

Join our innovative team at dev2 as a Lead Full Stack Software Engineer. In this dynamic role, you will leverage your expertise in Java, Python, Angular, and React to develop cutting-edge applications that drive our business forward. You will lead a talented team of engineers, collaborating closely with product managers and designers to create exceptional user experiences.As a lead engineer, you will be responsible for architecture and design decisions, ensuring best practices in coding and development processes are adhered to. This is a unique opportunity to mentor junior engineers, influence product strategy, and work on impactful projects that shape the future of our company.

Loop develops AI-powered tools that help large companies organize and act on supply chain data. By connecting information from sources like PDFs, emails, and legacy software, Loop enables Fortune 100 firms to automate payments and audits. The company’s mission is to strengthen the financial systems behind freight logistics, making operations smoother and ensuring carriers receive timely payments. Supported by investors such as Founders Fund, Index Ventures, and 8VC, Loop is expanding quickly. Engineers at Loop work on production-ready AI that impacts the physical economy. Role overview This New Graduate Software Engineer position is a full-stack role based in New York. The program is designed for recent or soon-to-be graduates, offering a year-long experience that packs three years of learning into one. Participants work on real projects from the start, gaining hands-on experience and seeing their code make a difference for customers. Program structure Week 1 (Onboarding): Learn Loop’s tools and domain. Write production code from day one and complete a full development cycle by the end of the week. Months 1-3 (Velocity): Tackle three entry-level projects, each more complex than the last. By the end of this phase, operate independently as an engineer. Months 4-9 (The Rotation): Rotate through several teams to broaden your skills: Platform: Contribute to AI infrastructure and engineering systems. Core Product: Work on audit, billing, and payments features. Commercial: Support revenue-focused projects and forward deployed engineering. Special Projects: Collaborate with Loop’s CEO, CTO, and other leaders. Month 9+ (Graduation): Demonstrate mid-level engineering skills and become eligible for immediate promotion. Who succeeds in this role Loop values more than academic achievement. The team looks for individuals who enjoy building, solving complex challenges, and striving for exceptional results. Those who go beyond the expected and want to make a real impact will thrive here.

Join us at Verse Medical as a Full Stack Software Engineer, where your innovative ideas and technical skills will help drive the future of healthcare technology. We are looking for passionate individuals who are eager to learn and grow in a dynamic and collaborative environment.

Join our dynamic New Patient Experience team at Talkiatry as a Senior Full-Stack Engineer. This innovative product team is dedicated to enhancing the patient journey from their initial interaction to their first appointment. By optimizing how new patients find, assess, and begin their care with us, we contribute significantly to Talkiatry's mission of making mental health services more accessible.In this pivotal role, you will spearhead the development of impactful features and systems aimed at increasing patient conversion rates and simplifying the onboarding process, ensuring a smooth digital start to care. You will work closely with product, design, and data teams to create robust, extensible, and maintainable systems using TypeScript, running on AWS.

About BleeAt Blee, we are revolutionizing traditional workflows that often rely on spreadsheets and emails by introducing AI-driven software that unifies organizations to meet compliance requirements more efficiently, thoroughly, and transparently. Our platform is already empowering thousands of active users from numerous enterprise clients who are engaged in long-term contracts. Our leadership team boasts experience from prestigious organizations such as Adobe, Chime, PayPal, AWS, Wachtell, Harvard Law, and Columbia Law.We have engineered a unique platform that addresses the specific challenges faced by our customers from end to end. The ideal candidates for Blee will not only be adept problem solvers but also relish the challenge of identifying user needs, particularly as many of our users are new to products like ours.With offices in downtown San Francisco and New York City, our team is primarily distributed across these vibrant locations.The RoleThis Full Stack Engineer position is designed for a versatile generalist who excels at constructing solutions to specifications and tackling complex implementation challenges. While your expertise will span the entire technology stack, you will predominantly focus on backend services, database architecture, and infrastructure — laying the groundwork that powers our platform. You will translate product requirements into polished, production-ready features through close collaboration with engineering leadership, product teams, and customer-facing staff.

Kontakt.io is revolutionizing the way care operations are managed.Our mission is to minimize waste, lower costs, and enhance revenue by optimizing asset utilization and boosting staff productivity.Leveraging AI, RTLS, and EHR data, our platform empowers self-learning agents to automate workflows, adapt in real-time, and seamlessly orchestrate all aspects of care delivery operations. It is designed for easy deployment and scalability, providing a comprehensive overview of spaces, equipment, and personnel, thereby eliminating inefficiencies and enhancing the patient experience. With a remarkable 10X return on investment and over 20 successful use cases, Kontakt.io stands as the preferred platform for expedited and improved care delivery operations.We invite you to join us in creating the next generation of patient-flow intelligence. As a Full Stack Engineer at Kontakt.io, you will design and develop systems that manage patient milestones, identify and mitigate discharge barriers, and proactively address unit-level bottlenecks. Your contributions will play a pivotal role in enhancing care delivery by automating escalations and facilitating high-census communications throughout hospital operations.

Join our Team as a Full Stack Engineer!At iCapital Network, we are seeking a talented Full Stack Engineer who will be responsible for the development and enhancement of our software platforms. You will be involved in the complete software development lifecycle, collaborating closely with our Product Management team to gather requirements, review ongoing work, and troubleshoot any issues that arise during testing.

At Inductive Bio, we believe that drug discovery is a complex design challenge. Chemists dedicate countless hours each week merging experimental insights with their expertise to create molecules that are effective against specific biological targets, are easily absorbed by the body, and are safe for patients. Unfortunately, this process can span years and incur massive costs, all while the demand for innovative therapeutics continues to grow.Our mission is to revolutionize the way molecules are designed through advanced software solutions. We are developing a platform akin to Figma, supported by robust infrastructure and cutting-edge AI, enabling world-class drug discovery teams to collaborate seamlessly on this intricate design problem. Currently, our platform is utilized in over 30 active drug discovery initiatives, and its adoption is rapidly increasing. With the backing of prominent investors at the intersection of technology and biotechnology, along with guidance from distinguished drug discovery experts, we are poised for significant impact.We are on the lookout for a Full Stack Software Engineer to join our dynamic, driven, and supportive team. In this role, you will contribute to various facets of our technology stack, from enhancing our backend serving and MLOps infrastructure to implementing new functionalities in our molecule design user interface. You will collaborate directly with chemists, machine learning engineers, and end-users, providing you the chance to wear multiple hats and make a meaningful impact as an early engineer in our fast-growing startup.