Senior Fullstack Software Engineer, Connections

Join Roblox as a Senior Fullstack Software Engineer in our Connections team, where you will have the opportunity to innovate and enhance user experiences on one of the world's largest social platforms for play. You will be responsible for developing robust front-end and back-end solutions that engage millions of users globally. Your role will involve collaborating with cross-functional teams to design, implement, and maintain high-quality software solutions.

jobgether is hiring a Senior Fullstack Software Engineer based in the US. This position centers on designing, building, and maintaining software that drives the jobgether platform. Role overview This engineer will contribute to both front-end and back-end development, ensuring new features and updates meet the needs of users. Collaboration with product, design, and other engineering teams is a regular part of the work. What you will do Design and implement software solutions for the jobgether platform Maintain and improve existing code to ensure reliability and scalability Work closely with colleagues across functions to deliver user-focused products Requirements Experience in fullstack software engineering Ability to collaborate effectively with cross-functional teams Based in the US

We require individuals to work onsite in either our Denver (80206), Mountain View (94041), or New York (10018) office four days a week.About LG Ad SolutionsLG Ad Solutions is a premier global innovator in connected TV (CTV) and cross-screen advertising. We are dedicated to delivering cutting-edge advertising solutions that seamlessly integrate into the ever-evolving digital media landscape.Join Our Team:We are on the lookout for a skilled and driven Senior Software Engineer I (Full Stack) to become part of our Demand Side Platform (DSP) team. Our DSP platform empowers advertisers and agencies to programmatically acquire and manage digital advertising inventory across various ad exchanges and supply sources.The DSP team operates at an extraordinary scale, processing more than 1.5 billion ad requests every day. In this position, you will play a crucial role in developing intelligent systems that make instantaneous decisions regarding ad delivery—identifying the most suitable ad to present to each user at precisely the right moment and price, in the most effective format. Your contributions will directly support the real-time decision-making engine connecting premium advertisers with their target audiences across CTV and digital platforms.You will engage in both frontend and backend development, creating and maintaining the web applications and services that drive our advertising platform. Your responsibilities will include developing user interfaces, APIs, and backend services, collaborating with cross-functional teams, and contributing throughout the development lifecycle. If you are passionate about crafting efficient, scalable, and user-centric applications in the adtech sector, we want to hear from you!

P-160 About Us At Databricks, we are dedicated to empowering data teams to tackle some of the most challenging problems in the world — from transforming the next mode of transportation into a reality to expediting the development of medical innovations. We achieve this by developing and operating the leading Data Intelligence Platform, enabling our customers to leverage profound data insights that enhance their operations. Founded by engineers with a customer-centric approach, we eagerly embrace every opportunity to confront technical challenges, whether it involves designing next-generation UI/UX interfaces for data interaction or scaling our services and infrastructure across millions of virtual machines. Our journey is just beginning. As a Senior Full Stack Software Engineer, you will collaborate with your team and product management to simplify data insights for our users. We seek engineers who are customer-focused and capable of overseeing the entire product lifecycle, extending beyond mere technical execution. You will lay the groundwork for creating robust, scalable, and delightful products. Below are examples of experiences you will design for our customers, facilitating the complete project lifecycle from data loading and results visualization to statistical model creation and production deployment: User-friendly workflows for creating, configuring, and managing large-scale compute clusters, networks, and data sources. Develop, deploy, test, and upgrade intricate data pipelines, featuring powerful visual data graphs. Streamlined onboarding and management for all organizational members to adopt a data-driven approach. Exceptional SQL-centric data exploration and dashboarding experience on Databricks. An interactive environment for collaborative data projects at scale, with a straightforward path to production.

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 Plaid, we envision a future where financial interactions are seamless and empowering. Our mission is to revolutionize how individuals manage their finances through innovative tools and experiences utilized by thousands of developers. We support millions in achieving healthier financial lives by enabling connections to their financial accounts through the apps they love. Collaborating with leading companies such as Venmo, SoFi, and many Fortune 500 firms, our network encompasses over 12,000 financial institutions across the U.S., Canada, the UK, and Europe. Established in 2013, our headquarters is in San Francisco, with additional offices in New York, Washington D.C., London, and Amsterdam.As a Senior Fullstack Software Engineer at Plaid, you will play a pivotal role in shaping the future of financial access. You will design and develop robust systems and engaging user experiences that facilitate millions of connections to their finances. Your expertise will span the entire technology stack, allowing you to create scalable backend services and APIs while also delivering intuitive frontend experiences that bring our solutions to life.This position is perfect for engineers who thrive on alternating between backend problem-solving and frontend design, and who are eager to amplify their influence across both domains. You will work collaboratively with product managers, designers, and fellow engineers to deliver reliable, secure, and user-friendly products. At Plaid, you will take ownership early, contribute to key architectural decisions, and witness your contributions impacting millions of users.

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.

At Databricks, we are committed to empowering data teams to tackle the world's most challenging problems — from realizing the next mode of transportation to speeding up the progress of medical innovations. We achieve this by developing and maintaining the world's leading Data Intelligence Platform, enabling our clients to leverage profound data insights for enhancing their business operations.As a Senior Fullstack Software Engineer, you will collaborate closely with your team and product management to simplify data insights for our users. We seek engineers who are truly customer-focused, capable of embracing the complete product scope and user experience beyond mere technical execution. You will lay the groundwork for creating robust, scalable, and delightful products.Here are some of the impactful experiences you’ll help create for our customers, encompassing the entire project lifecycle from data loading to visualization, statistical modeling, and production deployment:Effortless workflows for creating, configuring, and managing extensive compute clusters, networks, and data sources.Design, deploy, test, and enhance sophisticated data pipelines with rich features to visualize data interactions.Smooth onboarding and management for all team members aiming to become data-driven.Deliver an exceptional SQL-centric data exploration and dashboard experience on the Databricks platform.Facilitate an interactive environment for collaborative data projects at a massive scale, with a straightforward pathway to production.

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.

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.

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.

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.

About CLEAR CLEAR builds secure identity solutions used by over 38 million members worldwide. The company’s platform supports seamless experiences at airports, stadiums, and other locations, helping people move more easily and securely through daily life. CLEAR partners with organizations across the globe to make identification faster and safer, both in person and online. Role Overview: Senior Fullstack Software Engineer This senior engineering role focuses on designing, building, testing, and deploying applications that strengthen CLEAR’s digital and biometric identity platform. The work goes beyond ID checks, supporting new features that help members benefit from a connected digital identity. Privacy and security remain central to every project. What You’ll Do Design, implement, and test new applications and features for CLEAR’s identity platform Deploy solutions that integrate multiple member attributes and qualifications Collaborate with teams to ensure privacy and security are built into every product Contribute to the evolution of CLEAR’s technology, supporting both physical and digital experiences Location Austin, Texas, United States

Join our dynamic team at Plaid as a Senior Fullstack Software Engineer, where you will contribute to innovative projects and help shape the future of financial technology. You will be responsible for developing and implementing scalable software solutions that enhance user experience and drive company growth.

Postman Inc. seeks a Senior Fullstack Software Engineer in San Francisco, California, to help advance the future of API collaboration. This role involves working across both front-end and back-end systems, with a focus on building reliable, scalable solutions that support the company’s platform. Responsibilities Design and develop features across the full technology stack, from user interfaces to backend services Collaborate with cross-functional teams to deliver improvements that enhance user experience and workflow efficiency Contribute to architectural decisions and drive ongoing improvements in software design Mentor junior engineers and support the growth of technical expertise within the team Requirements Proven experience building and maintaining fullstack applications Strong understanding of both front-end and back-end technologies Ability to work effectively with engineers, designers, and product managers Interest in shaping technical direction and contributing to team development

Role Overview Sigma Computing builds a high-performance platform that helps businesses work with modern data architectures. The engineering team is growing and looking for experienced fullstack engineers who enjoy solving complex problems and building solutions across the stack. The team’s mission: make data accessible for everyone. What You Will Do Work on challenging technical problems to deliver fast, interactive analytics and workflow experiences using modern data warehouses. Build software with tools and languages such as Rust, Go, GraphQL, and TypeScript. Design algorithms and techniques that improve performance and interactivity for analytics used by some of the world’s largest companies. Investigate and resolve product or system issues by identifying root causes. Develop and launch new features to support a growing base of users. Collaborate with teams across infrastructure, design, product, customer support, sales, and marketing to create new product capabilities. Location This position is based in San Francisco, CA.

At ICON, we are on the lookout for an innovative and analytical Senior Fullstack Software Engineer II who thrives on tackling intricate challenges and values the iterative enhancement of applications. In this pivotal role, you will be instrumental in developing advanced visualization and planning tools aimed at optimizing the residential construction process. You will report directly to the Vice President of Software Products and work from our dynamic Austin, TX campus.

Solo.io builds cloud-native infrastructure to help organizations move AI projects from experimentation to production. The team focuses on making advanced infrastructure accessible, supporting customers as they scale AI and cloud deployments. Founded in 2017, Solo.io works with Fortune 500 companies and is recognized for contributions to open-source projects in cloud computing, service mesh, and modern infrastructure. The Senior Fullstack Software Engineer will join a remote US-based team. This role centers on developing user interfaces for Solo.io’s cloud and AI products, with about 80% of work focused on front-end development. The mission: turn complex backend systems into intuitive, engaging web applications that users can rely on. What you will do Collaborate with designers, product managers, and backend engineers to create interfaces that simplify advanced technology. Build and maintain front-end frameworks and backend APIs, balancing usability and performance. Contribute to open source projects and work directly with customers in a range of industries. Help drive adoption of Solo.io products by making them accessible and reliable. Requirements Must be based in the United States. Authorized to work in the US on a permanent basis (no visa sponsorship available).

About UsAt PathAI, our mission is to revolutionize patient care through AI-enhanced pathology. Our innovative platform significantly enhances diagnostic accuracy and treatment effectiveness for diseases such as cancer, utilizing cutting-edge machine learning methodologies. Our diverse team is deeply committed to tackling complex challenges and making a meaningful difference in healthcare.We are seeking talented and experienced engineers to join our dynamic team and help us expand our software platform. We prioritize leveraging the most effective tools available, which currently include:PythonVue.jsDjango + DRFDockerAWS: EKS, S3, RDS/PostgreSQL, SQS, MSK/KafkaYour ResponsibilitiesCraft elegant solutions to intricate problems through coding.Develop new features for both internal and external users while enhancing existing functionalities.Engage with a variety of systems, processes, and technologies to find sustainable solutions, from low-level systems to user interface collaboration.Lead the architectural design of our application platform, aligning with team objectives and product roadmap.Collaborate effectively with product, design, machine learning, and infrastructure teams.Establish and maintain high engineering standards, ensuring consistent code quality through thorough review, testing, and integration.Mentor and share knowledge with team members, fostering a culture of learning.Take ownership of the quality of your code and that of the team.Contribute to a SaaS platform integral to clinical trial workflows, guaranteeing reliability, data integrity, and compliance.Work alongside clinical, QA, and regulatory teams to ensure software updates meet validation criteria and support inspection readiness.

About Us:At Perpay, a certified B Corp and Philadelphia’s leading growth-stage startup, we are dedicated to enhancing the financial stability of everyday Americans. Over the past decade, we have cultivated a strong product-market fit and an efficient, profitable operating model across a diverse range of products, establishing ourselves as the go-to financial partner for consumers with subprime credit.With a community of over 500,000 customers who have accessed more than $1 billion in spending power, we are at an exciting juncture of growth. We are expanding our operations, launching new offerings, and amplifying our impact. We seek passionate individuals to embark on this journey with us.Our esteemed venture partners include First Round Capital and L Catterton.Our impactful products include:Perpay Marketplace: Merges interest-free payments with modern e-commerce to lower ownership costs and encourage responsible repayment behavior.Perpay+: Utilizes Marketplace repayment history to assist members in monitoring and improving their credit scores across all three credit bureaus.Perpay Credit Card: Provides broader access to the benefits of a World Mastercard by eliminating common barriers such as high security deposits and low approval odds.We thrive on in-person collaboration in our unique center-city Philadelphia office, which offers river views and a comfortable atmosphere that fosters rapid product development, strong relationships, and career advancement. Here, the excitement of achieving significant milestones is palpable. While we primarily work on-site, we accommodate personal needs with reasonable flexibility, including support for unexpected family responsibilities or urgent errands, and we coordinate official remote weeks around major holidays. If you are driven by a meaningful mission, value collaboration and equity, and appreciate generous perks, Perpay is the ideal workplace in Philadelphia right now.About the Role:We are looking for a skilled and ownership-driven Software Engineer to join our team at Perpay and enhance our culture of technical excellence. You will spearhead large-scale projects from inception to completion, collaborating across various teams (analytics, commerce, product, design, operations) while mentoring junior engineers. As part of our growing engineering team, your contributions will significantly influence our technology and team dynamics. Our people-first philosophy prioritizes your elevated contributions, bolstering our culture of inclusivity, mentorship, and continuous learning.As a leader within Perpay’s engineering team, you will work closely with stakeholders ranging from entry-level contributors to senior executives. This unique opportunity is critical as it drives our mission forward.