Associate Staff Engineer - .Net Fullstack

Join our dynamic team at flex as a Staff Software Engineer, Fullstack (Marketing). In this role, you will be instrumental in developing innovative software solutions that enhance our marketing efforts. You will collaborate with cross-functional teams to design, implement, and optimize our software applications, ensuring a seamless user experience.

Vendelux empowers organizations to uncover the most impactful events. Event marketers play a crucial role in the success of businesses, generating leads and building exceptional brands throughout the year. At Vendelux, we strive to amplify the effectiveness of every event that a company sponsors or attends.As a Series A SaaS innovator, we serve as the definitive system of record for event marketing. Our cutting-edge software platform delivers proprietary insights, aiding high-growth companies in identifying the events, conferences, and trade shows that yield the highest return on investment. Our AI-driven platform is often described as a dream for event marketers.Founded in 2021, Vendelux recently secured a $14 million Series A funding round led by FirstMark, whose portfolio includes industry giants such as Shopify, Pinterest, Discord, Airbnb, Draft Kings, Carta, and Justworks. Our leadership team boasts alumni from prestigious firms like Bain, ZoomInfo, Shutterstock, Compass, ModernLoop, Forter, Zulily, and NewtonX.Data-driven marketers have numerous tools to optimize their digital advertising investment and confirm ad visibility. We create similar tools tailored for data-driven event marketers, who have traditionally faced limitations, such as merely scanning conference badges at booths.As we expand, we are in search of Staff Software Engineers to deliver critical features and implement key infrastructure enhancements. In this role, you will play a pivotal part in shaping the technical vision for our products and systems.This is a full-time position based in New York City. Our preference is for engineers to adopt a hybrid work model, with an expectation of four days in the office. You will report directly to our Head of Engineering.

P-1980At Databricks, we are dedicated to empowering data teams to address some of the most challenging problems in the world—from revolutionizing transportation to accelerating medical advancements. Our mission is realized through the development and operation of the premier Data Intelligence Platform, enabling our customers to extract deep insights from data to enhance their business strategies. Founded by engineers with a strong customer focus, we eagerly embrace every opportunity to tackle technical challenges, whether it’s designing cutting-edge UI/UX for data interaction or scaling our services and infrastructure across millions of virtual machines. And we’re just getting started.As a founding engineer in our New York City Engineering office, you will join a dynamic, agile team committed to innovating and creating new products from the ground up. Our aim is to harness the capabilities of Databricks in data and AI to deliver specialized AI applications catering to both technical and business users. This role offers a unique 0-to-1 environment, merging the excitement of a startup with the robust resources of a leading tech company.Your primary challenge will be to utilize the latest UX/UI technologies to develop intuitive yet powerful interfaces for complex data and workflows. Your team will adopt a UI-first and GenAI-first strategy in product development. Potential challenges might include:Creating interfaces for GenAI agents that produce intricate workflows while ensuring human oversight through transparency and inspectability.Developing advanced visualizations, such as data pipelines, data mappings, customer journey flows, and identity graphs.Implementing features that promote product-led growth via seamless onboarding and sharing capabilities.Facilitating an interactive environment for collaborative data projects at scale, with a straightforward path to production.

About ClarionAt Clarion, we're transforming communication in healthcare through cutting-edge AI technology.Currently, clinics are missing 30–40% of patient calls, while their staff faces overwhelming administrative burdens. We envision a future where AI agents manage workflows like scheduling, billing, prescription refills, and follow-ups, allowing healthcare teams to prioritize patient care.We are developing the essential communication framework that modern healthcare demands. Our AI agents not only respond to calls—they complete entire workflows, ensuring that patients are always heard. To date, we've facilitated hundreds of thousands of patient interactions across various virtual care providers, healthcare systems, and a $5B health insurance company.Founded by a physician with training from Stanford and Harvard (part of the founding team at Two Chairs and Ophelia) and an ex-Amazon Alexa engineer who led AI/ML initiatives at Salesforce, we have secured $5.4M in funding from notable investors including Accel, Y Combinator, Sequoia (Scout), and prominent healthcare entrepreneurs. Our team operates in-person in New York, moving swiftly to tackle one of healthcare's most pressing challenges.Why This Role Is UniqueOwnership of high-impact projects: You'll be responsible for significant features and systems that are actively used in real healthcare settings.Early traction and strong signal: With numerous paying customers and increasing revenue, you'll have the opportunity to influence critical product decisions.Learn from industry leaders: Collaborate closely with founders and experienced engineers who work at the nexus of healthcare, AI, and real-time systems.Your ResponsibilitiesDevelop and maintain full-stack features that drive AI-enhanced healthcare communication.Integrate with EHRs, legacy healthcare systems, and real-time voice infrastructure.Work collaboratively with product, design, and senior engineers to turn customer feedback into deliverable software.Enhance reliability, performance, and scalability across active systems.Engage in technical discussions, code reviews, and contribute to the evolution of engineering best practices.Technical Challenges Awaiting YouAI-driven workflows: Support and expand LLM-based systems utilized in real-time healthcare interactions.Real-time systems: Contribute to low-latency services that provide seamless healthcare experiences.

About GreenboardAt Greenboard, we are pioneering the future of financial compliance. Our unified, AI-driven compliance operating system serves registered investment advisors (RIAs), fintechs, private funds, hedge funds, and beyond, replacing the disjointed array of legacy tools and automating processes beyond previous capabilities. By centralizing data and streamlining workflows, Greenboard empowers firms to mitigate regulatory risks, simplify their technology infrastructure, modernize compliance operations, and achieve cost savings.Our founding team consists of engineers who have successfully scaled products at industry giants such as Amazon and Google, as well as at several unicorn startups. Supported by esteemed investors including Y Combinator, General Catalyst, and Base10, we have raised over $20 million to date. Renowned financial institutions already trust Greenboard, and our growth trajectory is rapidly accelerating.About the Role:As a pivotal member of our engineering team, you will tackle complex technical challenges ranging from building AI agents for insider trading detection to scaling messaging archiving systems capable of processing tens of millions of messages daily. You will collaborate with a team of world-class engineers, making a significant impact on our innovative projects.This is a full-time, on-site Fullstack Software Engineer position based in New York City.Who You Are:You thrive in fast-paced environments and love to build innovative solutions.You seek deep ownership of the products you develop.You are passionate about understanding and serving the customers you build for.You possess excellent communication skills.You value teamwork and collaboration.You are based in New York City.Qualifications:3-5 years of industry experience.Proficient in Node.js and Python.Experience architecting secure, scalable systems on AWS.Experience in developing scalable data infrastructure.Knowledge of AI and machine learning algorithms.Ability to work effectively in a fast-paced startup environment.Experience in the financial industry is a plus, but not mandatory.Benefits:401(k) plan with 5% company match.Comprehensive medical, dental, and vision insurance.15 days of paid time off plus 11 company holidays and flexible sick leave.

About Waterfall:At Waterfall, we are pioneering a revolutionary trading protocol designed for rare NFTs and collectible digital art, featuring live on-chain pricing. Our mission is to enhance the liquidity and composability of NFTs by creating innovative infrastructure and auction mechanisms. We have conceptualized a unique trading system allowing users to trade shards to forecast NFT prices, enabling rapid price discovery for any listed asset.Supported by Electric Capital and Pantera Capital, our dynamic and agile team is committed to fostering an inclusive culture. We aim not only to make a significant impact in the NFT space but also to ensure that Waterfall is the ideal workplace for your future aspirations. To stay informed and connected, be sure to follow our socials and explore our website!

About Us At Propel, we are dedicated to creating technology that enhances the social safety net. Our dynamic team of around 100 passionate individuals, known as Propellers, envisions a future where every American has access to the tools and resources required for success. The Role Are you a Fullstack Engineer eager to make a significant impact in a mission-driven environment? Do you excel in high-autonomy startup settings? If so, we want you on our engineering team at Propel. In this role, you will have the chance to switch between individual contributor and engineering management responsibilities! This position will allow you to work on various products and technology stacks, including engaging with government programs, identifying savings opportunities, facilitating user enrollment in healthcare plans, developing internal tools, and architectural design. We seek a passionate, user-focused Fullstack Engineer excited about tackling meaningful and complex technical challenges that positively influence our users’ lives. Your Impact: Strategically Lead Technical and Product Initiatives: You will play a vital role in identifying the best technical and product opportunities—whether building a new service from the ground up or advocating for significant improvements to a legacy system. Your voice will be instrumental in shaping the company’s technical and product direction, and you will take a hands-on approach to help realize these initiatives. Leading a team will also be part of your responsibilities. Set Engineering Standards: You will serve as a role model for your peers and establish best practices for technical decisions, code quality, documentation, and ensuring high-quality product delivery within timelines. Address Complex Challenges: When high-complexity tasks arise, you will be the go-to person for solutions. You will enjoy autonomy while receiving ample support to tackle these rewarding challenges!

About UsAt 3Y Health, we are revolutionizing the healthcare industry with our AI-driven software designed to alleviate the overwhelming administrative challenges that consume a staggering 40% of healthcare revenue. Our comprehensive platform empowers clinician entrepreneurs, enabling them to establish, manage, and expand their private practices effectively. By integrating cutting-edge AI and automation into independent practices, we help healthcare providers reclaim their time, foster flourishing businesses, and improve health outcomes within their communities. Backed by over $200 million in funding from prestigious investors such as Founders Fund, General Catalyst, Softbank, and 8VC, 3Y Health is positioned to make a significant impact in healthcare.About the RoleWe are on the lookout for a talented Fullstack Engineer who can help us design and develop intuitive, high-performance user interfaces that resonate with our providers. The perfect candidate is not only skilled in modern web development technologies (React, TypeScript, Node) but also possesses a strong aesthetic sense and an appreciation for quality user interactions. You prioritize clean, modular coding practices and thrive in collaborative environments, working closely with design and product teams to create elegant user experiences. Ideal candidates may have experience as a founding engineer or founder, demonstrating a proactive mindset, a focus on product excellence, and a commitment to continuous improvement.In this role, you will drive architectural decisions, work cross-functionally with engineering, design, and product teams, and take charge of delivering scalable systems while enhancing the user experience of our practice management platform.

About ClarionAt Clarion, we are revolutionizing communication in healthcare through the power of AI.Currently, clinics are missing 30–40% of patient calls and their staff is burdened with administrative tasks. We envision a future where AI agents manage these workflows, including scheduling, billing, prescription refills, and follow-ups, allowing healthcare professionals to dedicate more time to patient care.We are developing the essential communication infrastructure that modern healthcare needs. Our AI agents do more than just answer calls—they manage workflows from start to finish, ensuring that every patient is heard. To date, we have successfully handled hundreds of thousands of patient interactions across virtual care companies, health systems, and a $5 billion health insurance provider.Founded by a physician trained at Stanford and Harvard, alongside a former Amazon Alexa engineer who led AI/ML teams at Salesforce, Clarion has raised $5.4 million from prominent investors including Accel, Y Combinator, and Sequoia. Our in-person team in New York is rapidly advancing to tackle one of the most pressing challenges in healthcare.

At CLEAR, we are pioneering the future of secure identity. Our mission is to enhance safety and convenience in both physical and digital experiences. With over 38 million members and a rapidly expanding network of partners worldwide, our secure identity platform is revolutionizing how individuals live, work, and travel. Whether at airports, stadiums, or in everyday situations, CLEAR is committed to providing seamless experiences for our members. As a recognized leader in digital and biometric identification, CLEAR is dedicated to minimizing friction during ID checks for our members. We are in search of a talented Senior Software Engineer to contribute to the development of next-generation products that extend beyond traditional ID solutions, empowering our members to harness the full potential of a connected digital identity. In this role, you will engage in the design, implementation, testing, and deployment of applications that enhance our platform, ensuring that member privacy and security remain paramount.

Join our dynamic team at counsel as a Senior Fullstack Software Engineer, where you will play a pivotal role in designing and developing cutting-edge applications. You will collaborate with cross-functional teams to build scalable and efficient software solutions. This is an opportunity to leverage your expertise in both front-end and back-end technologies to create impactful products.

Role Overview Sigma Computing builds a high-performance platform that integrates with modern data architectures. As the team grows in New York City, the company seeks a Senior Fullstack Software Engineer who enjoys solving complex technical problems and shaping features that make data accessible for a wide range of users. The engineering group values collaboration and a shared mission to improve how organizations use data. What You Will Do Work on challenging problems to deliver an interactive, high-performance analytics experience on top of modern data warehouses. Develop software using tools and languages such as Rust, Go, GraphQL, TypeScript, and Slate. Create new algorithms and techniques to improve performance and interactivity for analytics and workflow solutions, supporting some of the largest enterprises. Diagnose and resolve product or system issues by analyzing, tracking, and debugging problems. Design and implement new features to meet the needs of a growing user base. Collaborate with teams across infrastructure, design, product management, customer support, sales, and marketing to build new product capabilities.

Join Us at InfluurAt Influur, we're pioneering the development of the world's first autonomous AI agent tailored for influencer marketing. Our technology transforms the influencer campaign process from inception to execution with unparalleled efficiency.Why Influur Stands Out: With three years of exclusive data on viral content, we empower industry giants like Warner, Sony, and Universal to amplify their leading artists. Our impressive roster of backers includes top-tier entertainers such as Sofia Vergara and Karol G, along with premier VCs like Point72 Ventures. We are not merely theorizing; we deliver AI solutions that generate substantial revenue.Our Unique Advantage: Unlike others, we possess both the vital data and the influencer connections necessary for success. Our proprietary insights into influencer dynamics and robust relationships set us apart in the competitive AI landscape.The Time is Now: As the AI revolution unfolds, we have a crucial window of 12 to 18 months to define the influencer marketing landscape with our innovative solutions.Who We Seek: We’re looking for passionate young professionals eager to make an impact. We offer significant equity for those ready to shape the future of AI in influencer marketing and be part of something that truly matters.

About RainAt Rain, we are pioneering the future of payments on a global scale. Our dedicated team of innovative builders and seasoned founders is committed to making stablecoins practical for everyday transactions. With our advanced infrastructure, we facilitate card transactions, cross-border payments, B2B transactions, remittances, and much more. By collaborating with fintech companies, neobanks, and various institutions, we empower them to deliver solutions that are not only global but also inclusive and efficient. Join us to create significant change at a rapidly growing company backed by leading investors in the fintech, crypto, and SaaS sectors, including Sapphire Ventures, Norwest, Galaxy Ventures, Lightspeed, and Khosla. If you are driven, curious, and eager to contribute to a borderless financial future, we want to connect with you.Our PhilosophyWe embrace a culture of openness and flat hierarchies, allowing you to develop in a role that aligns with your aspirations. All team members, regardless of their position, are encouraged to explore ideas and influence the direction of the company.Role OverviewAs a Fullstack Software Engineer at Rain, you will play a pivotal role in developing our rewards and co-brand platform. Your responsibilities will include maintaining, enhancing, and building third-party rewards programs, primarily in collaboration with our major league sports partners, and integrating new payment solutions into these applications. You will take charge of the technology stack and code that underpins our rewards and co-branded payment initiatives.Key ResponsibilitiesContribute significantly to the technical and product roadmapDevelop products across our stack utilizing React, Typescript, NextJS, Tailwind, and NodeJS, focusing on RewardsLead architectural decisions and drive the technical roadmap as we scaleEngage with smart contracts across multiple blockchain networksQualificationsProficiency in JavaScript, React, Typescript, NextJS, Tailwind, NodeJS (experience in a subset of these technologies is acceptable)A passion for building, including personal projects that showcase your skillsThis role is suited for candidates with 4+ years of experience; compensation will be aligned with your backgroundPreferred QualificationsExperience in fintech (particularly with neobanks or card issuance is a plus)Familiarity with decentralized applications (dApps)

At Plaid, we envision a future where financial interactions are seamless and transformative. Our commitment to this vision drives us to create innovative tools and experiences that empower thousands of developers in crafting their own financial products. As a pivotal player in the financial ecosystem, Plaid enables millions of users to achieve better financial health by connecting their financial accounts effortlessly to the applications they trust. We proudly partner with leading companies such as Venmo and SoFi, along with many Fortune 500 firms and major banks, to simplify financial connectivity. Our expansive network encompasses over 12,000 financial institutions across the US, Canada, the UK, and Europe. Founded in 2013 and headquartered in San Francisco, we also have vibrant offices in New York, Washington D.C., London, and Amsterdam.Plaid's mission is to democratize financial freedom for all by ensuring that money movement and access to financial data is both straightforward and secure. In the role of a Senior Fullstack Software Engineer, you will lead the design and development of systems that facilitate how millions connect with their finances.In this dynamic position, you will traverse the full technology stack, developing robust backend services and APIs while simultaneously crafting engaging, high-quality frontend experiences. This role is perfect for engineers who thrive in both backend problem-solving and frontend user interface design, eager to enhance their impact across the spectrum.You will be a key collaborator with product managers, designers, and fellow engineers to deliver products that are not only reliable and secure but also delightful for users. At Plaid, we empower our engineers to take ownership from the outset, contribute to architectural decisions, and witness their work reach millions of users.

Flex is hiring a Senior Fullstack Software Engineer to join the Risk Engineering team. This position can be based in New York, San Francisco, or remote within the U.S. Role overview This role centers on designing, building, and maintaining applications that support Flex’s risk management efforts. The Senior Fullstack Software Engineer will collaborate closely with teammates to deliver solutions that improve how risk is assessed and managed across the company. What you will do Develop and maintain both frontend and backend components for risk-related applications Work with team members to design features and solve technical challenges Contribute to projects from initial planning through deployment Requirements Experience in both frontend and backend software development Ability to drive projects through the full development lifecycle Interest in building solutions that support risk management

Role Overview Sigma Computing is growing its engineering team in New York City. The Senior Fullstack Software Engineer will help shape how users explore and interact with data. This role focuses on building technology that makes data more accessible and intuitive for a broad audience. What You Will Do Work on complex problems to create interactive experiences for data warehouse users, making analysis and exploration easier. Use modern programming languages and tools, including Rust, Go, GraphQL, and Kubernetes, throughout the development process. Build infrastructure to support Sigma Computing's cloud application. Develop algorithms and techniques that improve performance and interactivity in a multi-tenant cloud environment. Design and implement new features and technologies for a rapidly expanding user base. Collaborate across backend, frontend, design, product, customer support, sales, and marketing teams to deliver a strong product.

At StubHub, we are on a transformative journey to elevate the live event experience globally. Whether it's a person's first ticket purchase or their hundredth, our mission is to provide enjoyment and satisfaction from the moment they start their search until they enter the venue. We also cater to our sellers, from fans listing a single ticket to promoters of major tours, ensuring StubHub is the safest and most convenient platform for millions of users worldwide.Join us as a Software Engineer II, where you will be instrumental in designing and developing cutting-edge technologies and intricate features. In this role, you will face significant challenges and contribute to innovative solutions that drive our success. We seek individuals with a proactive attitude and a passion for problem-solving. Your career here will involve diverse projects aligned with business needs, and we value versatility, a growth mindset, and enthusiasm for tackling new challenges. Location: Hybrid (3 days in office/2 days remote) – New York, NY About the Team: The Consumer Experience (CX) team is dedicated to enhancing the product experience for fans discovering, buying, and selling tickets through our web and mobile platforms. We are committed to fulfilling StubHub’s mission to be the leading global destination for live events by crafting engaging experiences for millions of fans daily. Our focus is on understanding user needs and delivering both short-term and long-term feature innovations that are effective and enjoyable. With operations in over 60 regions and 30 languages, we prioritize a personalized experience for every user. Our cross-functional team collaborates on product, design, engineering, and data, fostering a culture of innovation through diversity of thought and transparency.

About N1:N1 is an innovative blockchain network that is hyper-performant and horizontally scalable. Our mission is to facilitate trustless computing at the scale of the internet, revolutionizing the way digital interactions occur.Our talented team comprises individuals with diverse backgrounds from prestigious institutions such as Harvard, Carnegie Mellon University, DFINITY, VMWare, and Galaxy Digital. We are proud to be supported by leading investment firms like Founders Fund, Kraken Ventures, SALT, and Amber Group.Position Overview:We are excited to invite a Full-Stack Software Engineer Intern to join our dynamic engineering team. This full-time role will involve the development of robust front-end, server-side, and database applications, with a primary focus on blockchain technology. Ideal candidates should be detail-oriented, innovative, and possess a strong product mindset. You will take ownership of enhancing our web platforms and internal tools, ensuring they are user-friendly, secure, and high-performing.