Senior Fullstack Software Engineer

At Snackpass, our dynamic team of software engineers is committed to creating engaging, user-friendly, and socially interactive experiences for our customers. We are also dedicated to developing solutions that empower our restaurant partners to expand their clientele and enhance operational efficiency.In this role, you will engage directly with customers to identify and resolve issues in real-time while crafting robust internal tools that facilitate seamless launch operations. You'll play a pivotal role in developing a scalable payment platform that efficiently manages marketplace transactions between users and restaurants, including automated payouts, promotional features, customer analytics, and recommendation systems.Our vision is to simplify the management of brick-and-mortar restaurants to the ease of running an online Shopify store. Many local businesses still rely on outdated systems; at Snackpass, we are pioneering the operating system for local commerce.

Machinify is a pioneering healthcare intelligence organization specializing in the payment continuum. We deliver unparalleled value, transparency, and efficiency to health plans nationwide. With deployments across over 85 health plans, including many of the top 20, and representing more than 270 million lives, Machinify integrates a fully configurable, content-rich, AI-powered platform with industry-leading expertise. We continuously innovate within our sector, creating disruptively simple and effective solutions to enhance financial outcomes and reduce healthcare expenses.We are in search of a talented Senior Fullstack Engineer with a keen interest in working with Rust to join our dynamic engineering team!In this role, you will utilize your extensive programming knowledge to design and develop scalable, dependable web applications. The ideal candidate will possess significant experience in application design and system architecture, along with demonstrated leadership skills necessary for language adoption.You will be part of a high-profile engineering team tasked with tackling intricate and high-stakes challenges using the latest in AI, data, and software systems. Your contributions will directly influence our customers and future product developments, as you partner cross-functionally to shape product direction, engage with clients, and manage systems that positively impact millions of lives—where your technical choices truly matter!

Transforming Healthcare for the BetterAt Angle Health, we are committed to revolutionizing the healthcare system, making it accessible, transparent, and user-friendly. As an AI-driven, integrated healthcare provider, our goal is to replace outdated systems with innovative infrastructure, ensuring members and patients receive the timely care they deserve. If you're passionate about shaping the future of healthcare, we invite you to be part of our mission.Your RoleAs a pioneering Fullstack Software Engineer at Angle, you will play a crucial role in developing and launching products that have a direct impact on our members and internal teams. This position allows you to work across the entire technology stack—creating seamless user experiences, designing robust APIs, and enhancing performance for vital applications.You will oversee the complete product lifecycle, from brainstorming and system architecture to implementation and continuous improvement. Collaborating closely with customers, designers, and non-technical stakeholders, you'll contribute to crafting intuitive solutions for complex problems. Whether you're honing frontend interfaces, streamlining backend processes, or architecting new features, your work will be key to Angle’s growth and success.This opportunity is perfect for engineers who enjoy both frontend and backend development, thrive in dynamic environments, and want to see their contributions create tangible impacts. If you are eager to build scalable solutions quickly while ensuring high standards of quality, we would love to connect with you.

Jobgether is looking for a Lead Software Engineer with fullstack expertise to help shape and deliver software products. This position involves both hands-on technical work and team leadership within a collaborative environment. Role overview The Lead Software Engineer will design, build, test, and deploy scalable applications. The role also includes working with teams across different functions to improve user experience and support the company’s goals. Key responsibilities Design and implement software solutions across the stack Write, review, and maintain code for reliability and scalability Test and deploy applications to ensure quality and performance Mentor junior developers and support their growth Promote best practices in software development within the team Collaboration This role works closely with cross-functional teams to enhance product features and deliver a strong user experience.

Novellia is on a mission to make health data accessible to people across the United States. The platform consolidates health records from multiple providers, giving patients access to years of their medical history in seconds, at no cost. Novellia partners with leading researchers and supports innovation in biopharma by providing patient-authorized, comprehensive datasets for research and regulatory use. The company’s data has contributed to research at major conferences and is backed by notable investors, with rapid growth and strong ties in the pharmaceutical industry. Role overview This remote Senior Fullstack Software Engineer position welcomes candidates at the senior, staff, lead, or principal level, depending on experience and goals. The role focuses on shaping Novellia’s products, building seamless user experiences, and developing reliable systems that support the company’s mission. What you will do Design, build, and maintain fullstack features with Next.js and Node.js Work with PostgreSQL databases and Google Cloud infrastructure Collaborate with a multidisciplinary team to deliver healthcare technology Contribute to ongoing product improvements and new feature development Help keep the platform secure, reliable, and user-friendly Requirements Proven experience with Next.js, Node.js, PostgreSQL, and Google Cloud Background in digital health technologies is a plus Ability to work independently and as part of a collaborative team Strong communication skills and a focus on user needs Novellia will tailor the title and responsibilities to align with each candidate’s experience and professional goals.

At Sumble, we are on an exciting journey to create a comprehensive knowledge graph leveraging web data, initially targeting go-to-market teams. Our innovative platform extracts valuable insights from job postings and resume data, enabling us to map organizational structures, identify technology stacks, and highlight pivotal projects, including initiatives in GenAI and cloud migrations. With a product that has already demonstrated strong market demand, generated early revenue, and garnered positive feedback from satisfied customers, we are poised for rapid growth.Our vision is to become the foremost destination for accessing premium web data. Explore our product at sumble.com.Join Our TeamWe are a dynamic team of 15, comprised of 10 skilled engineers with backgrounds from leading tech companies like Google, Meta, Stack Overflow, and Kaggle.Ideal Candidate: We seek a candidate with strong expertise in one or more of the following areas, including but not limited to: Proficient in developing software applications using general-purpose programming languages such as C#, Python, Java, or JavaScript. Skilled in efficiently querying large datasets and performing significant aggregations. Adept at developing, maintaining, and optimizing software to effectively support web applications and database queries. Experienced in maintaining and troubleshooting integrations with external applications. Knowledgeable in ensuring software security and durability with comprehensive alerting, monitoring, and logging systems. Technologies We Use: Languages & Frameworks: Python, FastAPI, React, Typescript Cloud Platform: Google Cloud Platform (GCP) Databases: PostgreSQL, AlloyDB Machine Learning/Data Tools: PyTorch, Huggingface, vLLM, Skypilot, Marimo, Prefect Infrastructure: Cloud Run Design Tools: Figma, Vercel V0 Challenges We Address: Transforming noisy datasets into high-quality data products. Executing costly analytics computations in an efficient manner. Managing the complexity arising from a diverse array of data sources, machine learning models, and extensive data operations. Creating a user experience that balances powerful high-level aggregations with access to detailed underlying source data. RequirementsMust be located within the Americas time zones.Benefits Comprehensive medical, dental, and vision coverage (US). 401(k) retirement plan (US). Aiming for 4 weeks of paid time off (PTO).

About UsAt Vesta, we are on a mission to revolutionize the homeownership experience by modernizing the tools and technology that empower financial security and wealth building. The traditional methods of mortgage lending are outdated, often relying on manual processes and cumbersome documentation. We aim to change that.Founded with the vision to reinvent the mortgage Loan Origination System (LOS), Vesta is committed to creating a fully automated lending process. Our AI-enhanced platform is at the forefront of this transformation, serving as the core engine that redefines how loans are processed.Our TeamOur founding team brings extensive experience from their time at Blend, where they developed modern cloud solutions for banks. With Vesta, they are leading a change in the mortgage sector by offering a flexible, open, and automated origination experience that benefits both financial institutions and their clients.We have successfully raised $55 million from esteemed investors like Andreessen Horowitz, Bain Capital Ventures, Conversion Capital, Zigg Capital, and Index Ventures.At Vesta, we believe our team is our greatest asset. We take pride in fostering a culture that values humility, empathy, self-awareness, and proactive action. If you are passionate about building the future of finance and eager to join a dynamic team, we want to hear from you!

Role Overview Vannevar Labs is looking for a Senior Fullstack Software Engineer to help design and build software that supports our mission. This remote role focuses on developing new features and improving existing applications. What You Will Do Work closely with cross-functional teams to deliver high-quality software Develop and enhance features across our applications Contribute to a smooth and effective user experience

Join butterflymx as a Senior Fullstack Software Engineer, where you'll play a pivotal role in developing innovative solutions to enhance our cutting-edge technology platform. Collaborate with cross-functional teams to design, implement, and maintain scalable applications while ensuring high performance and responsiveness. This is an excellent opportunity for a passionate developer eager to contribute to a dynamic team and make a significant impact.

Remote - US & CanadaJoin the innovative team at thatgamecompany as a Senior Fullstack Software Engineer where your expertise will play a pivotal role in enhancing our flagship title, Sky: Children of the Light. You will be instrumental in developing applications that streamline game operational functions, supporting millions of active users and managing terabytes of daily data.As a Senior Software Engineer, you will collaborate closely with the Lead Software Engineer and contribute to software solutions tailored for both internal and external stakeholders.

Vannevar Labs is at the forefront of defense technology, leveraging cutting-edge AI to deter adversaries in an ever-evolving landscape of conflict. In the 21st century, conflict operates at algorithmic speed, where foresight is equivalent to firepower. Our agentic AI is specifically engineered to counteract competitive threats from entities such as China, addressing scenarios from cross-Strait tensions to gray zone coercion. Our systems are trained on mission-critical datasets within defense, allowing us to model adversary behavior, simulate strategic campaigns, and provide actionable recommendations to decision-makers. Our trusted AI systems are actively deployed on the front lines of the Indo-Pacific region, contributing to peacekeeping and life-saving efforts.At Vannevar, we believe that exceptional technology is born from remarkable talent. Our nimble team combines world-class engineering prowess with seasoned strategists who possess deep experience in defense and tradecraft. We are dedicated to building a company characterized by mission-driven impact, user empathy, and sustainable growth. In just three years, we have scaled from $3 million to $80 million in Annual Recurring Revenue (ARR), achieved early profitability, and attained unicorn status, demonstrating that true disruption does not require ego, and longevity does not require stagnation.About the RoleWe are in search of a seasoned full-stack engineer to enhance the design and implementation of our Decision Advantage platform. This pivotal tool empowers defense and intelligence personnel to attain comprehensive situational awareness of the information landscape, enabling them to recognize and counteract adversarial influence campaigns and information warfare tactics. You will develop the applications utilized by our warfighters and intelligence analysts in their crucial tasks, creating advanced products and features for information distillation, analysis, and visualization that facilitate rapid assessments of the information environment. Collaborating with designers, engineers, subject matter experts, and operational users, you will transform complex intelligence requirements into user-friendly, mission-ready workflows that directly support national security goals.In this role, you will engage with a small, cross-functional team focused on delivering Decision Advantage capabilities to defense clients involved in strategic competition with near-peer adversaries. Your contributions will encompass all facets of the product—from data extraction and ingestion to backend systems (storage, indexing, APIs), frontend development, and AI analysis. The platform boasts a robust foundation, presenting ample opportunities for impactful contributions as we propel it to new heights.Note: This position is also open to candidates at the staff+ level.

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!

Join Hadrian — Pioneering the Future of ManufacturingAt Hadrian, we are revolutionizing aerospace and defense manufacturing with our autonomous factories, enabling companies to produce rockets, satellites, jets, and ships up to 10 times faster and at half the cost. By integrating cutting-edge software, robotics, and comprehensive manufacturing processes, we are redefining the landscape of American production.Recently, we secured a $260 million Series C funding to further our mission. Our new state-of-the-art factory in Mesa, Arizona, spans 270,000 square feet and will create 350 jobs immediately. With an expanding headquarters and the launch of Hadrian Maritime for naval production, along with our innovative Factory-as-a-Service model delivering complete systems, we are poised for significant growth.Collaborating with startups, Tier 1 and Tier 2 suppliers, and major defense contractors, we aim to scale production, minimize costs, and expedite delivery for mission-critical programs. Backed by top-tier investors including Lux Capital, Founders Fund, and Andreessen Horowitz, our rapidly growing team shares a commitment to reindustrializing American manufacturing for the 21st century and beyond.Your RoleAs a Fullstack Software Engineer, you will have the opportunity to work across multiple internal products and teams:Flow — Our FactoryOS, a core platform featuring applications that model, manage, and automate a highly intricate network of factories.Copilot — A suite of manufacturing automation tools that enhance critical factory processes such as quoting, CAM programming, and CMM programming.Factory Automation — Focused on developing robotic cells and the software that powers them.We offer a diverse array of applications for those eager to innovate in manufacturing software.Note: Experience in aerospace, defense, or manufacturing is not a prerequisite for success in this role.Your ResponsibilitiesDesign, architect, implement, and deploy vital applications that drive revenue and create a meaningful impact.Lead a product vertical with the potential to build and mentor a team as the role evolves.Engage in cross-functional collaboration to refine and enhance our software products.

About ProspyrAt Prospyr, we are a dynamic post-seed stage startup dedicated to revolutionizing the aesthetic healthcare industry. Our mission is to empower aesthetic clinics to maximize their business potential through our innovative platform, which enhances patient engagement and streamlines clinical operations. Our state-of-the-art practice management software is utilized by clinics nationwide, positively impacting the lives of countless patients.Your RoleAs a Senior Fullstack Software Engineer, you will have the opportunity to create impactful products that enhance the experience of healthcare providers and their patients. Our modern codebase and strong commitment to developer experience facilitate a productive work environment, allowing you to deliver exceptional results.Key ResponsibilitiesEngage in direct collaboration with product, design, and engineering teams.Strike a balance between speed and quality, prioritizing frequent shipping and quick iteration.Take full ownership of features and lead innovation utilizing cutting-edge technology.Foster a culture of code excellence through thorough testing, automation, and peer code reviews.

At Duna, we envision our company as a dynamic product in its own right, tirelessly striving to cultivate a transparent and ambitious culture. We aspire for this to be the ideal environment where you can unleash your full potential.Our mission is to revolutionize identity within the global economy. We are proud to be supported by premier investors including Index Ventures, alongside founders and leaders from prestigious companies such as Stripe, Adyen, Notion, Remote, Qonto, Framer, Anthropic, Mollie, OpenAI, and Goldman Sachs.This role evolves beyond a standard job description, but here’s a succinct overview.Your Responsibilities:Develop comprehensive product features, from API design to elegant UI implementation.Design and maintain robust and scalable systems across the technology stack.Collaborate closely with product and design teams to transform concepts into seamless product experiences.Prioritize code quality, testing, and sustainable long-term maintenance.Contribute to refining our engineering practices and shaping our technical culture.Who We Are Looking For:Comfortable traversing various parts of the stack to resolve challenges.Excellent communicator who thrives in collaborative settings.Possesses systems thinking - understanding how product decisions impact the entire stack.Eager to learn and navigate through ambiguous scenarios.Inquisitive nature.Ambitious mindset.Exhibits kindness.Our technology stack includes Node.js + TypeScript, React, Event Sourcing, Express, Postgres, RabbitMQ, Kubernetes, and AWS. Familiarity with these technologies is advantageous but not essential. We are more enthusiastic about your problem-solving approach and solution-finding capabilities.At Duna, we are eager to welcome passionate individuals from diverse backgrounds. We value potential, growth, and a variety of perspectives. If you're excited about this opportunity, a natural builder, and wish to create exceptional products with talented individuals, we would be thrilled to connect with you.

Role Overview At Dropbox, we are committed to fostering innovative ideas that emerge from every corner of our organization. Our mission is to create a transformative way of working that empowers individuals and teams worldwide. Our Engineering team is dedicated to streamlining collaboration among users. We are developing a suite of products that manage over a billion files daily, helping people globally to work more efficiently. With our expansive mission and immense scale, the potential for impact is boundless. This is just the start of how Dropbox will leverage AI/ML to elevate knowledge work in the modern workspace. We are thrilled to introduce a new wave of personalized, AI-driven experiences within Dropbox, enhancing our customers' work lives and promoting a more focused and productive work environment. In this pivotal role, you will be instrumental in the design, development, and maintenance of AI-enhanced software applications. Collaborating closely with cross-functional teams, including engineering, product management, data science, and ML engineering, you will create robust and scalable solutions that drive user engagement and business success. You will have the unique opportunity to shape a product at the early stages of its growth trajectory, defining the next generation of AI offerings at Dropbox.

At Vanta, our mission is to empower businesses to establish and demonstrate trust. We believe that security should be continuously monitored and verified, enabling companies to enhance their security practices effortlessly. Our team is comprised of kind and talented individuals; while some members have prior experience in security, many have successfully excelled at Vanta without it.As a Senior Software Engineer, you will play a pivotal role in leading and mentoring fellow engineers, delivering high-impact products that enhance our customers' experiences and support our growing infrastructure.Vanta is rapidly expanding, and it is crucial to invest in the right abstractions and systems to facilitate this growth. In this role, you will set the technical direction, enabling our product and infrastructure to effectively scale with our business. You will drive complex projects across our technical stack and mentor our talented engineering team, utilizing your extensive experience to fuel Vanta's growth.Since our inception, we have achieved remarkable product-market fit and monetized effectively from our very first customer. We are experiencing rapid growth, presenting unique career-defining opportunities for engineers to accelerate their professional development and contribute to a fast-scaling company.To learn more about our engineering team's initiatives, visit our Vanta Engineering Blog.The Governance, Risk, and Compliance (GRC) organization is at the forefront of developing and maintaining Vanta's core product offerings. Our teams are central to Vanta's strategy to support enterprise customers, building products that seamlessly integrate with their existing security and compliance frameworks, providing invaluable insights and recommendations for their ongoing operational maturity.Key Responsibilities for Senior Software Engineers at Vanta:Lead complex projects involving multiple stakeholders and engineers to deliver significant business impact.Establish direction for critical technical areas, ensuring we remain ahead of rapid growth.Design, develop, and own new product functionalities and/or infrastructure using modern frameworks and tools (e.g., TypeScript, React, Node.js).

Join us in creating a safer world, one incident at a time.At Ambient.ai, we are pioneering a cutting-edge, AI-powered physical security platform that empowers leading enterprises to mitigate risks, enhance operational efficiency, and derive invaluable insights. Our technology is trusted by seven of the top ten U.S. tech giants and numerous Fortune 500 companies to modernize their security frameworks.Our innovative platform leverages advanced artificial intelligence and computer vision to integrate seamlessly with existing camera and sensor systems, providing real-time monitoring and proactive threat detection. By drastically reducing false alarms by over 95%, Ambient.ai enables security teams to concentrate on genuine threats, effectively preventing incidents before they happen.Founded in 2017 with the support of industry leaders like Andreessen Horowitz, Y Combinator, and Allegion Ventures, Ambient.ai is a Series B company on a mission to ensure that every security incident is preventable.Interested in learning more? Connect with us on LinkedIn and YouTubeAbout the Role:We are on the lookout for a skilled Full Stack Engineer to contribute to the development and scaling of the essential systems that drive Ambient.ai’s real-time AI security platform. In this dynamic role, you will engage with software that processes and interprets large volumes of video and event data instantly, turning raw signals into actionable intelligence for some of the world's largest enterprises.You will regularly tackle technically challenging problems in a fast-paced, collaborative atmosphere and witness your contributions deployed in mission-critical environments.Your Responsibilities:Design and implement REST and GraphQL endpointsDevelop highly available, latency-sensitive, fault-tolerant microservicesCreate core infrastructure for handling significant volumes of video streaming dataEnhance the performance, reliability, and scalability of all backend servicesTake ownership of small to medium platform features, overseeing them from conception to deploymentCollaborate as a vital member of the platform team, responsible for one or more services/product featuresExpect to be challenged and continuously develop your skills.

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.