Senior Full Stack Engineer – Web & Mobile

About TitanTitan is an innovative and award-winning wealth management firm dedicated to revolutionizing the financial landscape for our generation. Our mission is to democratize access to wealth management services by providing everyone with a personal wealth advisor at their fingertips. Traditionally, such services have only been available to the ultra-wealthy, but with Titan, we are changing that narrative. Utilizing cutting-edge technologies like artificial intelligence, we empower our advisors to cater to clients who have long been underserved in this space. Supported by renowned investors such as a16z, General Catalyst, and Sam Altman, we proudly manage over $1 billion in assets for clients nationwide.Why Join Titan?Visionary Goals: Be part of a transformative vision that aims to elevate our generation's wealth.Timeliness: The rise of LLMs allows us to provide personalized wealth management solutions now more than ever, and we are driven by this urgency.Significant Impact: Join a small, dynamic team where your contributions will make a substantial difference.Collaborative Culture: Experience a vibrant in-person culture, working closely with our founders and team members.Competitive Compensation: Enjoy attractive cash compensation and above-market equity options, ensuring you are a true owner in our mission.Esteemed Backers: Work with a team supported by top-tier investors who share our ambitious vision.Role OverviewWe are seeking a talented Senior Full Stack Engineer to design and implement end-to-end features on both web and mobile platforms. You will collaborate with Product, Design, and Backend teams to deliver seamless user experiences across our React (web) and React Native (mobile) applications. The ideal candidate is passionate about tackling real user challenges through elegant design and exceptional engineering.

About TitanTitan is a trailblazing wealth management firm dedicated to revolutionizing how individuals manage their financial futures. Our mission is to democratize wealth management by placing a personal wealth advisor in everyone's pocket. Traditionally, financial advising has been a privilege of the elite, but with Titan, we are making it accessible to all. Leveraging cutting-edge technologies like artificial intelligence, we empower our advisors to extend their reach and service a broader clientele than ever before. Supported by esteemed investors such as a16z, General Catalyst, and Sam Altman, we proudly manage over $1 billion in assets for clients nationwide.Why Titan?Joining Titan could be the most fulfilling career move you will ever make.Bold Vision: Our goal to integrate private wealth management into every pocket is set to redefine wealth accumulation for our generation.Timely Opportunity: The rise of LLMs presents a unique moment to broaden access to personalized wealth management, driving our daily mission.Significant Impact: With a compact yet dynamic team, your contributions at Titan will resonate and make a tangible difference.Collaborative Environment: Our culture thrives on in-person collaboration, and you will frequently interact with our founders and team members.Competitive Compensation: We offer attractive salaries and above-market equity packages to ensure every team member feels like an owner.Renowned Investors: Join a company backed by leading investors who believe in our vision, including a16z, General Catalyst, Y Combinator, and Sam Altman.Role OverviewTitan is seeking a Lead Full Stack Engineer to develop comprehensive features for our web and mobile platforms. Collaborating closely with Product, Design, and Backend teams, you will create exceptional user experiences across both React (web) and React Native (mobile) applications. The ideal candidate will excel in addressing real-world user challenges with innovative design and engineering prowess.Core ResponsibilitiesDesign and develop customer-facing solutions utilizing React (web) and React Native (mobile).

Join Bubble, Inc., a leading platform revolutionizing mobile application development, as a Senior Full Stack Engineer. In this pivotal role, you'll leverage your expertise to create seamless mobile experiences that empower users to build and manage applications effortlessly.Your responsibilities will include designing and implementing robust backend systems, enhancing front-end interfaces, and collaborating with cross-functional teams to drive innovative solutions. You will play a crucial role in shaping the future of the mobile platform, ensuring optimal performance and user satisfaction.

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.

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.

CGS Federal is looking for a talented Full Stack Web Developer to join our dynamic Information Technology team. This full-time, mid-level position involves developing software applications that support an enterprise-wide data inventory initiative. The role requires collaboration across various teams to create integrated solutions that address complex challenges. At CGS Federal, we unite skilled and innovative professionals to tackle pressing government issues using advanced technology. We seek individuals who are enthusiastic about contributing to governmental innovation, value teamwork, and possess the ability to anticipate the needs of others. We are committed to fostering a supportive environment that promotes professional development and growth through diverse learning opportunities.

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.

About EliseAIAt EliseAI, we are revolutionizing crucial sectors like housing and healthcare. Everyone deserves a secure home and access to quality healthcare, yet these essentials are often challenging to obtain. By seamlessly incorporating AI agents into existing workflows, we enhance efficiency, lower costs, and enrich the overall experience for all stakeholders.Housing: We streamline the process for renters to tour apartments, sign leases, submit maintenance requests, and maintain communication with their property management—bringing all necessary resources for housing into one cohesive platform.Healthcare: We simplify appointment scheduling, facilitate the completion of intake forms, and enhance communication between patients and providers, allowing everyone to focus on health rather than administrative tasks.With EliseAI, organizations can minimize manual tasks, enhance accessibility, and provide a seamless experience across essential services. Recently, we secured a $250 million Series E funding led by Andreessen Horowitz to further accelerate our mission.About The RoleAs a Full Stack & Mobile Software Engineer at EliseAI, you will be more than just a coder; you will be a pivotal player in driving operational efficiencies for businesses and enhancing lives. Rather than adhering to a prescribed playbook, you will create one. Each day will present opportunities to identify scaling solutions and execute them effectively. Collaborating with a team of talented engineers, you will take on significant responsibilities, lead projects, and witness your innovative ideas come to fruition.Key ResponsibilitiesRapidly contribute to our core software platform designed to automate the leasing process and enhance operational efficiency for our customers managing apartment communities.Design and implement new features that deliver increased value to our customers.Suggest impactful enhancements to our software architecture and design patterns.Foster and implement engineering best practices.Utilize automated testing and continuous integration/continuous delivery (CI/CD) to iterate rapidly on our products.Attract and engage top-tier talent to join our motivated team.

About Standard BotsAt Standard Bots, we aim to democratize real-world automation, merging the digital and physical realms to enhance productivity across diverse industries. Our innovative applications and APIs empower individuals and developers alike to tackle challenges without needing extensive backgrounds in robotics or automation. With a strong emphasis on user-friendliness, we bring transformative potential to new users and sectors.Your Role:We are seeking experienced technical leaders to help shape the future of robotics using modern software engineering methodologies. As a Senior Full-Stack Software Engineer, you will collaborate with fellow engineers, leadership, and users to enhance products that significantly impact our users and unlock new opportunities for them. Location and BenefitsThis position is hybrid, requiring 3 days a week onsite at our NYC office, conveniently situated near Grand Central Station. Our office is equipped with robots for demonstrations and testing!Key Responsibilities:Identify, scope, and lead impactful technical and user-facing projects.Provide strategic technical guidance to leadership.Mentor and support fellow engineers in their technical and personal development.Drive technical decision-making through hands-on, in-depth work.Technology Stack:Front-end: React, TypeScriptBack-end: Node.js, Python, C++Containerization: KubernetesVirtualization: DockerCI/CD: GitHub ActionsWho You Are:No prior experience in robotics is required or preferred.We seek engineers who are motivated, optimistic, innovative, and resourceful. While a robotics background is not needed, we find candidates thrive when they are enthusiastic about this domain and eager to apply their skills in a new context.Our ideal candidate will engage in approximately 70% back-end and 30% front-end work, with flexibility to adjust focus as needed.

About the RoleJoin april as a Senior Full-Stack Engineer, where your innovative mindset and data passion will contribute to revolutionizing tax solutions for millions. We're seeking a talented individual ready to lead projects, enhance customer experiences, and drive professional growth. Based in the New York City metropolitan area? You'll need to collaborate on-site at least three days a week.Key ResponsibilitiesTake ownership of end-to-end projects that impact millions of users, from concept to deployment.Collaborate with product management and UX teams to define product specifications and ensure seamless execution.Architect robust system designs and evaluate tool selections to optimize performance.Develop cloud-native microservices that enhance our platform's functionality.Mentor team members and elevate our technology stack and practices.

About the Role: Join our distinguished team at agencywithin as a Senior Full Stack Engineer, where you will be instrumental in developing both frontend and backend services for Brkfst. Your role will involve close collaboration with our data science team to host models and provide them through APIs. We are searching for engineers who embody a 'bias to ship' mentality and possess a strong sense of urgency. Our aim is to build compact teams of highly skilled professionals capable of autonomously solving problems and self-organizing to achieve our goals.

Join our dynamic team at simpleciti as a Full Stack Web Developer, where you'll play a pivotal role in designing and delivering high-quality production software. This position involves hands-on development across the entire stack, focusing on modern web technologies while enhancing our existing Django systems. We value autonomy and expect you to create seamless and polished user experiences with minimal design assistance.Key ResponsibilitiesDevelop and deploy comprehensive full-stack web applications.Create exceptional user experiences with minimal designer input.Design and maintain backend logic and APIs, specifically utilizing Django services.Integrate frontend applications with Django-based backends.Oversee deployment and production operations.Ensure high performance, reliability, and code quality throughout the stack.Leverage AI-assisted IDEs to enhance development speed and productivity.

About LiveFlowAt LiveFlow, we're revolutionizing the accounting and finance landscape by developing a cutting-edge platform that empowers lean finance teams to efficiently manage expansive enterprises.Having successfully secured over $21 million in funding from prestigious investors such as Y Combinator, YC Continuity, Valar, Seedcamp, WndrCo, Moonfire, and Bradley Horowitz (VP Product, Google), we've positioned ourselves as a frontrunner in the industry.Our platform is already assisting thousands of companies in optimizing their financial operations, evidenced by our hundreds of 5-star ratings on G2.Our founding team boasts experience from Europe's fastest-growing fintech, Revolut, which fuels our ambition and innovation. Why Join Our Team?At LiveFlow, you have the unique opportunity to shape your role based on your skills, passions, and aspirations.We encourage you to work intelligently, share your insights, and engage deeply with our mission and methodologies. Your contributions will be essential in cultivating an inspiring workplace culture and scaling our organization as we grow.Are you a problem solver? Our enthusiastic customers are eagerly waiting for the innovative solutions you'll bring forth. We face a multitude of stimulating challenges—both technical and non-technical—and while we may not have all the answers yet, we're committed to asking the right questions every day.If you take pride in customer satisfaction and are excited to contribute to a product that brings value, while maintaining a balance between detail and progress, we want to hear from you!

About UsAt Valdera, we empower manufacturers to turn their innovative ideas into reality by revolutionizing material sourcing. Our platform simplifies the process of identifying top-tier materials and suppliers, enabling manufacturers to create high-quality products at scale and distribute them to millions globally.As a rapidly expanding team, we have established a solid reputation for collaborating with Fortune 500 industrial manufacturers, beauty brands, and chemical firms. We seek passionate, talented individuals who excel in dynamic, high-performance environments and are eager to accelerate their career growth.Our culture is designed to empower exceptional talent to tackle significant challenges, work alongside industry leaders, and witness the tangible impact of their contributions. If you desire a fast-paced environment where your ideas can influence change, Valdera is the perfect fit for you.Join us in shaping the future of manufacturing.

Join Grow Therapy as a Senior Full Stack Software Engineer, where you will play a pivotal role in designing and developing innovative software solutions. You will collaborate with cross-functional teams to enhance our platform and deliver exceptional user experiences. This position offers the chance to work on cutting-edge technologies and contribute to our mission of improving mental health care.

About FinFin is an innovative payments platform designed for high-value, global, and instantaneous transactions. As a Series A-stage company, we are backed by prestigious investors such as Sequoia and Circle. Leveraging stablecoins, Fin allows both individuals and businesses to transfer millions of dollars within seconds—whether to other Fin users, directly into bank accounts, or across cryptocurrency networks. By merging the speed of crypto with the reliability of traditional finance, Fin is redefining global money movement. If financial institutions and payment solutions were to be reinvented today, they would embody the principles of Fin.Role OverviewWe are seeking a Senior Full Stack Engineer to join our pioneering team and help shape the future of money movement at Fin. In this role, you will collaborate closely with our CEO, CTO, and a team of senior engineers to design and deliver essential product experiences, integrate with payment partners such as Stripe and PayPal, and construct the systems that enable Fin to process millions of transactions securely and efficiently.This position offers significant autonomy, allowing you to take ownership of projects from conception to deployment, enabling you to see your contributions in action with real users swiftly. If you are passionate about crafting intuitive products atop complex systems and are eager to revolutionize global payments, we would love to connect with you.We respect your time: our hiring process focuses on practical system design and architectural discussions, avoiding unnecessary coding challenges or unpaid take-home assignments.Key ResponsibilitiesDesign, develop, and launch full-stack features across our web and mobile platforms, encompassing APIs, services, and user interfaces.Take full ownership of projects: collaborate with product and leadership to define requirements, design systems, implement solutions, test, and deploy to production.Integrate third-party payment and financial APIs, including processors, compliance tools, and identity verification services.Develop scalable, high-performance services capable of handling real money transfers with exceptional reliability and observability.Maintain high standards for code quality through clean abstractions, thorough testing, and constructive code reviews.Work closely with product, design, and operations teams to ensure that our offerings are user-friendly, even when the underlying systems are complex.Qualifications for SuccessExtensive experience with TypeScript and Node.js. We primarily operate in a TypeScript environment.Proficiency in building full-stack applications and working with both frontend and backend technologies.Strong understanding of RESTful APIs and microservices architecture.Experience integrating with third-party payment systems and financial APIs.Ability to write clean, maintainable code and conduct thorough code reviews.Excellent problem-solving skills and a proactive approach to challenges.Strong communication skills, with the ability to work collaboratively in a team-oriented environment.

About UsAt Baton Corporation, we are pioneering the technology behind pump.fun, the foremost memecoin launchpad currently operational. Our systems are engineered for low latency and high throughput, operating under constant load, where precision is paramount.Your RoleIn the role of Senior Staff Full Stack Engineer, you will play a critical part in guiding the technical trajectory of our platform, engaging hands-on with both frontend and backend systems. You will tackle the most challenging cross-stack issues—focusing on performance, scalability, correctness, and architectural integrity in a dynamic setting.Architect and develop high-performance systems across the full stack, contributing directly to production code on both frontend and backend levels.Define and refine cross-stack architecture to accommodate user growth, product complexity, and real-time interaction needs.Lead intricate, multi-surface projects from inception to rollout, overseeing system design and implementation.Establish clear boundaries between frontend, backend, and blockchain infrastructure, ensuring systems are modular and scalable.Identify potential systemic bottlenecks (performance, data consistency, infrastructure limitations) and proactively devise robust solutions.Enhance performance, reliability, and observability across the stack.Rapidly prototype and validate innovative product concepts, ensuring successful experiments transition into production-ready systems.Elevate engineering standards through design reviews, architectural guidance, and hands-on mentorship.Serve as a technical anchor during critical launches, migrations, or incidents affecting multiple stack components.Enhance developer efficiency by evolving tools, CI/CD pipelines, testing strategies, and shared abstractions.

Why Join Us?At Brex, we are revolutionizing the way companies manage their spending with our AI-driven spend platform. Our integrated corporate cards, banking solutions, and global payment systems empower businesses of all sizes—from dynamic startups to established enterprises—to gain control over their expenditures, minimize costs, and enhance operational efficiency. Notable companies like DoorDash, Flexport, and Compass trust Brex to optimize their financial processes.Joining Brex means pushing your boundaries, challenging conventional norms, and collaborating with some of the brightest talents in the tech industry. We are dedicated to fostering a diverse team and an inclusive culture where your aspirations can soar. We equip you with the necessary tools, resources, and support to elevate your career to new heights.Engineering at BrexOur engineering teams are focused on creating scalable systems with purpose and precision. We encompass diverse fields such as Software, Data, Security, and IT, working autonomously yet collaborating deeply. We confront tough technical challenges, take ownership of our results, and strive for excellence from design to deployment. Here, engineering is an art form, and builders evolve into leaders.Your RoleAs a Senior Full Stack Software Engineer on our Task Workflows Platform team, you'll be instrumental in developing and scaling the backbone infrastructure that fuels Brex's core experiences. You'll engage with our broad array of platforms, including our multi-channel notifications engine, collaborative commenting system, and dynamic workflow rule builder. Your expertise will be crucial in transforming our task orchestration capabilities from a one-size-fits-all experience to highly customized solutions tailored for specific product domains.Your role involves tackling intricate full-stack challenges, from architecting scalable backend APIs and developing rule-evaluation engines for personalized automations to designing user-friendly frontend experiences for our task interfaces and workflow builders. Beyond platform development, you'll influence the overall product experience, utilizing AI to refine user workflows and contributing to the ongoing advancement of our productivity tools across web and mobile interfaces.Work EnvironmentThis position is based in our New York office, where we embrace a hybrid work model that blends the energy of in-office interactions with the flexibility of remote work. Currently, we require a minimum of three coordinated office days each week, typically Monday through Wednesday.

Senior Full Stack EngineerLocation: New YorkOn-site | Full-timeJoin mlabs, the driving force behind the world's largest memecoin launchpad. Our infrastructure is characterized by ultra-low latency, exceptional throughput, and a continual load, designed for an arena where precision is imperative and the stakes are sky-high.The RoleAs a Senior Full Stack Engineer, you will be pivotal in designing and scaling the future of crypto-social finance. This is not a conventional position; we operate at the forefront of Web3 innovation and seek an individual who excels under pressure.What You'll Do:End-to-End Ownership: Spearheading features from initial ideation to production deployment, exercising substantial autonomy.Full-Stack Architecture: Engaging with the complete stack—from robust backend systems to refined frontend interfaces—ensuring a cohesive and scalable user experience.Rapid Iteration: Quickly prototyping and deploying new features while maintaining system integrity.Complex Problem Solving: Tackling technical challenges unique to high-scale crypto platforms where efficiency reigns supreme.Collaborative Innovation: Partnering with a top-tier team of engineers and designers to push the boundaries of social finance.

About Fairstead Fairstead is a real estate firm focused on affordable housing, with headquarters in New York and offices in Colorado, Florida, and Washington DC. The company manages more than 27,000 apartments across 28 states, integrating development, construction, and property management within one platform. Fairstead’s approach combines thoughtful design, professional management, and responsible operations to deliver affordable housing that benefits residents and communities. Fairstead values technology and data-driven strategies, using digital transformation and emerging technologies, including AI, to build scalable systems for sustainable growth. The company’s culture emphasizes entrepreneurship, innovation, partnership, dedication, and integrity. Role Overview: Senior Full Stack Engineer - IoT The Senior Full Stack Engineer, IoT, will design, develop, and oversee the technology stack for Fairstead’s proprietary IoT platform. This platform connects building sensors to the data infrastructure that informs operational decisions across the company’s portfolio. This position covers the full stack: device firmware, network configuration, message brokering, data normalization, storage, analytics, and user-facing applications. The engineer will serve as the technical lead, architecting a modern, open-standards-based infrastructure that Fairstead will own and operate. The work will start with a live pilot and expand to cover more than 27,000 apartments in 28 states. Beyond IoT projects, this role will help shape Fairstead’s broader digital strategy to ensure technology supports the mission of sustainable, affordable housing. Key Responsibilities Design and develop the end-to-end technology stack for Fairstead’s IoT platform. Oversee all layers, including device firmware, network setup, message brokering, data normalization, storage, analytics, and user interfaces. Lead the architecture of an open-standards-based IoT infrastructure. Manage the rollout from a live pilot to large-scale deployment across the national portfolio. Contribute to Fairstead’s overall digital strategy, ensuring alignment with the company’s mission and goals. Location This role is based in New York, New York, United States.