Lead Frontend Developer (React.js)

Join our dynamic team at growetalents as a Frontend Technical Lead. In this pivotal role, you will spearhead the design and implementation of innovative frontend solutions, guiding a talented team of developers to create exceptional user experiences. Your expertise will be instrumental in optimizing our web applications for performance and scalability. We are seeking a visionary leader who can bridge the gap between technical excellence and creative design, ensuring our products not only function seamlessly but also engage and delight our users.

Join Growe and be part of a dynamic team where you will:Lead and inspire the frontend development team, making impactful technical decisions.Architect and uphold the frontend framework, ensuring top-notch code quality.Identify, implement, and refine technologies, standards, and best practices to enhance productivity.Conduct code reviews and mentor junior developers to foster their growth.Collaborate closely with product, design, and backend teams to efficiently plan tasks and deliver results.Enhance interface performance and maintain stability across projects.

Join DEUNA, an innovative startup at the forefront of transforming global commerce with our cutting-edge AI-driven platform, ATHIA. This remarkable orchestration and payments solution empowers enterprises to enhance approval rates, minimize costs, and unlock new revenue streams. As a product developed by a team that has established DEUNA as the fastest-growing Commerce OS in Latin America, ATHIA integrates payment intelligence, checkout optimization, and data orchestration in one powerful package.With extensive integrations across over 300 payment service providers and alternative payment methods, and with more than 20% of Mexico's digital economy leveraging our platform, we streamline global payments through a single integration and centralized reconciliation.As we expand into the U.S. market to cater to the urgent needs of large retailers, marketplaces, airlines, and quick-service restaurants, we invite you to be part of our team and help shape the future of payments!

About UsPicogrid is a pioneering venture-backed defense technology firm dedicated to bridging the long-standing gap between cutting-edge technology and the pressing needs of national security. Our commitment is to establish vital infrastructure that integrates sensors, autonomy, and operators, with our technology already in active deployment across global operations. Our mission is to provide an operational edge to safeguard the United States and its allies.Role OverviewWe are seeking a proactive Frontend Tech Lead to take ownership of the Orion frontend, focusing on base defense and fleet management solutions built on the Legion platform. This high-stakes, autonomous position will enable you to design a real-time geospatial user interface that seamlessly incorporates live video feeds, maps, and controls for intricate defense systems. As the principal technical steward for Orion’s frontend, you will collaborate closely with product managers, designers, and customers to transform vague requirements into deliverable products. While the role is predominantly frontend-focused (React / TypeScript), you should also be prepared to engage with backend technologies as necessary.

Your ImpactJoin Onyx, a leading open-source initiative with a thriving community of hundreds of thousands of users. Our project boasts over 13,000 stars and a vibrant community of more than 3,000 members on platforms like Slack and Discord. As a Technical Lead in Frontend Development, your contributions will shape the future of our product, potentially impacting millions of users worldwide. About the RoleAs an early team member, you will be instrumental in defining our core product. Help us transform into the premier “GenAI for work” application on the global stage!Your responsibilities will include:Leading frontend development for our default open-source chat interface, enterprise search platform, and agent builder, focusing on:Creating a stunning core search and chat experience with seamless animations and top-notch performance, akin to building the UI/UX layer for both Perplexity and ChatGPT.Implementing a diverse feature set, including workspace search, internet search, code interpretation, artifact management, deep research, and much more.Collaborating closely with our design team and founders to ensure alignment and vision.Establishing frontend priorities and best practices to foster a high-quality development environment.Building a robust culture of design and frontend engineering excellence.Encouraging community engagement by guiding contributors in enhancing the frontend.This position is on-site in San Francisco, CA. You’ll Be Successful If You Have…A minimum of 4 years of experience in frontend engineering, specifically in developing complex, user-facing applications.A high standard for your work and the ability to inspire others to achieve exceptional results.Deep expertise in JavaScript, TypeScript, React, NextJS, and other cutting-edge frontend technologies.Strong communication skills, enabling effective collaboration with cross-functional teams.A keen product and design intuition that guides your development choices.⭐ Bonus Points If You Have:Experience with Python and Postgres.A degree in Computer Science or a related technical field.Background as a founder or early-stage engineer in a seed or Series A startup.

Join OKX as a Frontend Business LeadWe are seeking an innovative and strategic Frontend Business Lead to spearhead our frontend initiatives across the APAC region. In this pivotal role, you will be responsible for leading a talented team of developers and designers, ensuring the delivery of high-quality web applications that enhance user experience and drive business results.Your primary focus will be on aligning frontend development with our business objectives, collaborating closely with cross-functional teams to implement cutting-edge solutions that meet our client’s needs. You'll have the opportunity to shape the future of our digital products while fostering a culture of excellence within your team.

Join Mindlance as a Lead Frontend Engineer and take the next step in your career by leading innovative frontend development projects. We are looking for a creative and driven individual who excels in building user-friendly interfaces and enjoys collaborating with cross-functional teams. You will be responsible for designing and implementing high-quality web applications, optimizing performance, and ensuring a seamless user experience.

About Us:At HavocAI, we are pioneers in the realm of collaborative autonomy, harnessing the power of self-tasking teams of machines to tackle complex human challenges. As a leader in the development of autonomous surface vessels, we cater to diverse defense and commercial maritime missions. Our commitment to rapid growth calls for ambitious individuals eager to innovate, resolve difficult problems, and contribute to life-saving solutions.About the Role:We are in search of a UX Technical Lead with over 7 years of expertise in designing and crafting sophisticated, data-driven user interfaces tailored for intricate systems. In this pivotal role, you will take the reins as the technical lead for our UX team, overseeing UX Engineers and QA Engineers. You will take ownership of frontend architecture, implementation standards, and quality of delivery, ensuring the realization of complex functionalities through user-friendly, high-performing, and dependable user experiences.You will spearhead the development of highly interactive, workflow-centric applications, which encompass map-based and data analysis interfaces. This role is situated at the crossroads of UX design, frontend engineering, and quality assurance, ensuring that our operational systems are both powerful and user-friendly.The ideal candidate will possess a robust UI engineering background, with a proven track record in creating complex workflows and data visualizations, and experience in leading distributed teams across various time zones.

Why Weave ExistsAt Weave, we are revolutionizing the way therapeutic knowledge is captured, transformed, and communicated throughout the drug development process. Our mission is to empower human experts with cutting-edge AI tools, ensuring drugs reach patients swiftly, safely, and cost-effectively.The Weave Platform optimizes regulatory workflows from inception to completion, seamlessly integrating AI into every phase. Collaborating with our clients, Weave is crafting the ultimate AI toolkit for the entire therapeutic lifecycle.Your Role & MissionWe are in search of a Lead Staff Frontend Engineer to spearhead the technical direction of our frontend platform. This high-impact role involves defining the architecture, establishing engineering standards, and constructing the foundational systems upon which the engineering team will build. You will balance hands-on technical work, cross-team collaboration, and elevating our software development practices.In this role, you will identify key technical challenges, foster alignment on solutions, and ensure our architectural decisions support scalable growth. We prioritize creating simple, well-tested, and reliable systems over pursuing the latest frameworks.What You'll OwnTechnical Leadership & ArchitectureDefine and refine the frontend architecture for our platform, weighing immediate velocity against long-term maintainability.Establish engineering standards, design patterns, and best practices throughout the frontend codebase.Drive the technical strategy and roadmap for frontend infrastructure, architecture, developer tooling, and experience.Be the go-to technical decision-maker for high-stakes, ambiguous problems, documenting your rationale.Foundational SystemsDesign and build the core systems that product engineers rely on: component libraries, shared abstractions, performance infrastructure, and testing frameworks.Oversee the architecture of our document editor experience, including real-time collaboration, conflict resolution, and extensibility.Enhance frontend build, deployment, and observability tools to maintain team speed and confidence.Cross-Team ImpactCollaborate with Product, Design, and backend engineering to formulate technical solutions for complex product challenges.Mentor and guide junior engineers, fostering a culture of knowledge-sharing and continuous improvement.

Develop a robust data architecture for real-world robotic operations.As robotics transitions from experimental environments into active use across industries such as manufacturing, logistics, and transportation, the need for reliable data becomes paramount. Engineers depend on data to diagnose failures, rectify unexpected behaviors, and enhance functionality.At Foxglove, we create the observability, visualization, and data infrastructure necessary for these advancements. Our tools empower robotics and autonomous systems teams to efficiently manage and analyze vast amounts of multimodal sensor data from active systems and production fleets.Exceptional frontend engineering is crucial to our products and the overall success of our organization. We aim to redefine the standards of web applications, delivering both browser-based and desktop applications.We seek a talented Technical Lead Manager (TLM) who is passionate about tackling intricate product challenges and possesses a strong drive for continuous improvement. In this position, you will oversee the application's architecture, including authentication, navigation, component systems, build processes, analytics, and error reporting, ensuring consistency across various feature teams.Key ResponsibilitiesTake complete ownership of features, collaborating with customers, community members, design teams, and product management to gather requirements.Lead a skilled team to execute projects while upholding high standards.Deliver features in collaboration with your team.Design, develop, and refine the core frontend application architecture, including authentication systems, navigation processes, and shared components.Oversee and maintain the application's build and packaging pipeline, as well as shared infrastructure like analytics and error tracking.Contribute across the software stack and help establish consistent patterns and tools for application feature teams.Participate in product and architecture discussions to enhance the overall product experience.Manage, mentor, and develop a team of frontend engineers, providing regular feedback and conducting performance evaluations.Assist in recruitment efforts by leading technical and managerial interviews and influencing hiring decisions to attract top talent.QualificationsProven experience in leading engineering teams, preferably in a frontend development context.Strong understanding of data infrastructure and application architecture.Excellent communication skills and the ability to collaborate effectively with cross-functional teams.Experience with modern frontend frameworks and best practices.A proactive approach to problem-solving and a passion for innovation.

Zyphra is a cutting-edge artificial intelligence company located in the heart of San Francisco, California.About the Position:As our Lead Frontend Engineer - Agentic Interfaces, you will spearhead the design and development of the user-facing elements of our agentic systems. Your expertise will shape the way users engage with AI technology across various platforms, including desktop applications and web browsers. You will collaborate closely with engineers, machine learning researchers, and backend teams to create user experiences that are not only functional but also intuitively accessible.Your Responsibilities Include:Crafting and developing user interfaces for both browser and desktop applicationsCreating and maintaining comprehensive component libraries and styling systemsAnalyzing user interactions and refining user flows based on feedback and usage dataPrototyping and implementing UI features in conjunction with machine learning and backend teamsSimplifying the complexities of AI products to ensure they are accessible and empowering for a diverse user baseQualifications:Proficient in frontend technologies, with a strong command of HTML, CSS, and JavaScript/TypeScriptHands-on experience with modern frameworks, particularly ReactA keen eye for UI detail and usability, maintaining a user-centric approachAbility to rapidly prototype and iterate designs using tools like FigmaExperience in designing responsive, accessible, and high-performance user interfacesStrong understanding of human-computer interaction principles, accessibility, and visual designExcellent communication and collaboration skills to work effectively with engineers, designers, and researchersPreferred Qualifications:Experience in designing or developing browser extensions or desktop applications (e.g., Electron, Tauri)Familiarity with mobile platforms and responsive design is a plusPrior involvement in products featuring complex workflows, automation, or agentic behaviorsInterest or experience in backend development, APIs, or AI systems

Join ChronosphereChronosphere is an innovative observability platform designed to provide control in today's containerized environments. Our mission is to empower clients to prioritize essential data and insights by simplifying data complexity, optimizing expenses, and accelerating issue resolution. Our platform reduces data volumes and costs by an average of 60%, allowing developers to save valuable time. With our Fluent Bit-based Telemetry Pipeline, we enhance observability and streamline security log data, transforming logs at the source and directing them to any destination without vendor lock-in.As a recognized leader in the industry, Chronosphere is trusted by top brands such as Snap, Robinhood, DoorDash, and Zillow. Discover more at Chronosphere.io. Connect with us on LinkedIn and X.About the RoleAs a critical member of our engineering team, you will contribute to our industrial-scale Software-as-a-Service observability platform. You will lead the design and implementation of impactful features within the Control Plane UI/UX, focusing on developing sophisticated budget management tools and comprehensive usage reporting systems. Collaborating closely with Product, Design, and engineering teams, you will create intuitive interfaces that enable our customers to manage costs effectively across their organizations while handling massive data volumes of hundreds of millions of telemetry events per second.Your Responsibilities as a Full-Stack Engineer with a Frontend Focus Include:Leading the development of user experiences that allow central observability teams to oversee and manage their observability budgets.Working closely with product managers, designers, and fellow engineers to transform complex data into actionable, user-friendly visualizations and workflows.Going beyond implementation by challenging assumptions, refining designs based on user feedback, and ensuring the delivery of polished, effective user experiences.Collaborating with engineers across various teams to ensure a seamless integration of functionalities and improve overall platform performance.

About KiddomKiddom is an innovative educational platform committed to fostering student equity and growth by integrating high-quality instructional materials with engaging digital learning experiences. Our platform offers exceptional curriculum management capabilities, empowering schools and districts to take charge of their educational content. This results in tailored learning experiences that cater to the unique needs and aspirations of local communities. With detailed insights into teacher and leader performance, Kiddom drives continuous improvement in instructional strategies, school/district programs, and professional development.At Kiddom, we are passionate about revolutionizing education through state-of-the-art technology. Our mission is to create a comprehensive platform that equips educators and learners with advanced tools and data-driven insights. We are seeking a skilled Lead Software Engineer specializing in Frontend development to join our team and spearhead the design and implementation of scalable, frontend-centric solutions.As the Lead Software Engineer - Frontend, you will be pivotal in architecting and delivering full-stack product features with a focus on frontend architecture. Your responsibilities will include defining, building, and optimizing product features and addressing complex challenges at scale. You will collaborate with senior engineers to select optimal tools and technologies while implementing robust, production-ready software solutions.

Couchbase, the leading operational data platform for AI, empowers organizations to thrive by transforming data into actionable insights. Renowned companies trust Couchbase for mission-critical operational, analytical, mobile, and AI workloads. Designed to modernize outdated infrastructure and fragmented data services, Couchbase provides businesses with a unified platform engineered for exceptional performance, adaptability, and global scalability.With Couchbase, enterprises can bring their data to life, creating revolutionary customer experiences, tapping into the boundless possibilities of AI, and effortlessly extending applications from the cloud to the edge and beyond. Couchbase’s AI-ready technology and collaborative partnership model simplify complexity and lower total ownership costs, allowing teams to remain agile, innovative, and secure.Couchbase believes that data should be an enabler of innovation, not a bottleneck. Discover why Couchbase is the preferred choice for the world’s largest organizations to scale, accelerate, and maintain resilience in their strategic endeavors. Join us in our journey—apply today!Couchbase is on the lookout for a dynamic and people-centric IT Technical Lead to join our Raleigh, NC office. This role transcends traditional IT support; you will act as a technical leader and systems owner, championing automation, scalability, security, and innovation across our internal IT and SaaS ecosystem.You will collaborate closely with IT, Security, Engineering, and Business teams to design and implement world-class technology experiences for employees, while spearheading the adoption of identity-driven automation, workflow orchestration, and AI-powered solutions that promote efficient business scaling.

Are you a passionate and experienced software engineer looking to make a significant impact in the world of cryptocurrency? Binance US is seeking a talented Lead Software Engineer for our Frontend Team to help us build and enhance our web applications. As a key player in our team, you will lead development efforts, mentor junior engineers, and collaborate with cross-functional teams to deliver exceptional user experiences.

About Cogent SecurityCogent Security is an innovative Applied AI Lab dedicated to developing the next generation of AI agents for cybersecurity. As cyber threats evolve, so do our defenses. Our 'AI Taskforce' analyzes vast amounts of enterprise data to proactively address potential breaches before they can escalate.To maintain our edge, we integrate pioneering research with practical implementation. In addition to our core product initiatives, Cogent Research acts as our applied AI laboratory, fueling our ability to create truly intelligent security workflows.Since our launch, Cogent has rapidly expanded, collaborating with Fortune 500 companies to secure some of the world's most intricate production environments.Supported by Greylock, we've assembled a team of exceptional talent in applied AI, including individuals from:Renowned universities such as Stanford, Berkeley, Penn, Duke, Carnegie Mellon, and WaterlooHigh-growth companies including Scale AI, Databricks, Stripe, Tesla, and CoinbaseLeading cybersecurity experts from Wiz, Abnormal AI, and ZscalerPrestigious research institutions like DeepMind and SAILAbout the RoleIn the role of Senior Frontend Engineer, you will take ownership of the frontend platform and user experience, empowering customers to visualize, understand, and act upon complex security data with assurance.This position is classified as Staff+ level; you will have previously operated as a Staff, Senior Staff, or Principal Frontend Engineer and will be eager to define the technical pathway for a new platform. Your responsibilities will include designing frontend infrastructure, developing 'golden' component libraries, and enhancing the platform’s AI capabilities, all while delivering customer-facing features.You will balance in-depth architectural design with hands-on development, ensuring our frontend stack is both sophisticated and robust as we scale. Over time, you will play a key role in mentoring junior frontend engineers, laying the groundwork for a strong team based on the foundations you establish.

Join StemXpert as a Network Technical Lead, where you will play a pivotal role in overseeing and enhancing our network operations. In this dynamic position, you will lead a talented team, ensuring seamless connectivity and reliability for our clients.Your expertise in network architecture and troubleshooting will be crucial as you implement innovative solutions and maintain superior performance standards. This is an exciting opportunity to shape the future of our network infrastructure.

Join our dynamic team as a Senior Frontend Developer and lead our frontend engineering efforts with your expertise in React. As a pivotal member of our compact development team, you will influence significant technical decisions while collaborating with fellow developers to create impactful products. If you have a passion for coding, API development, and tackling unique challenges, we encourage you to apply.Experience with Scrum methodologies and the ability to lead a small developer group will be highly valued.If you consider yourself an ‘uber developer’—a versatile individual with a broad skill set—your application will take priority. This role requires not only development capabilities but also software architecture insights, guiding junior developers, and conducting code reviews, mentoring, and training.Key Technologies:• JavaScript• React• Redux• NodeYour Responsibilities:• Build and maintain frontend architecture• Collaborate with backend engineers, product managers, and design teams to develop, test, and deploy code• Create innovative features for our users• Optimize web pages for maximum speed and performance• Address problems creatively and effectively• Facilitate architectural discussions and foster consensus among team members• Promote best practices, collaboration, and continuous improvement• Diagnose and rectify bugs and performance bottlenecks• Write automated tests to ensure high-quality product delivery• Mentor and develop your teammatesWhat You’ll Need:• Extensive experience with React or React Native in medium to large-scale applications• Proven experience in mentoring engineers and establishing team best practices• Proficiency in writing clean, well-tested TypeScript code• A commitment to collaboration, integrity, and team growth• Strong verbal and written communication skills.

The Role:Join us as a dynamic Frontend Tech Lead at f2-ai, where you'll take the helm in crafting our cutting-edge, AI-driven enterprise UI platform. This is a unique opportunity for an innovative engineer who enjoys building robust systems from the ground up and is eager to influence our technical direction while writing production-level code.Key Responsibilities:UI System Development: Design and implement foundational frontend features, actively coding and delivering essential React/TypeScript components.Frontend Architecture Leadership: Shape the technical vision and roadmap for our React-based UI platform, ensuring swift iterations and effective scaling of user experiences.Performance, Security, and Accessibility: Create high-performance, responsive interfaces that comply with SOC 2 and accessibility standards, emphasizing maintainability and cost-effectiveness.AI Integration: Collaborate with the team to incorporate intelligent features, data visualizations, and interactive tools that reveal AI-driven insights.Engineering Excellence: Establish and maintain coding standards, component libraries, and review processes; mentor fellow engineers to cultivate a culture of reliable, test-driven development.Collaborative Partnerships: Work closely with product, design, backend teams, and enterprise clients to translate requirements into elegant UI solutions.Qualifications:Proven Technical Leadership: 7+ years of experience in building and scaling mission-critical frontend systems using TypeScript and React, with a demonstrated capability to architect solutions from scratch.API Design Proficiency: Extensive experience in designing and utilizing RESTful and GraphQL APIs, including state management and effective data-fetching techniques.Results-Oriented Mindset: You excel in environments where you take ownership of features from start to finish, iterate quickly, and deliver production-ready UI solutions.Familiarity with Styling Solutions: Experience with CSS-in-JS methodologies (e.g., Styled Components, Emotion) or utility-first frameworks like Tailwind.