Senior QA Engineer - Cloud (Java Coding)

Join Binance, the world’s premier blockchain ecosystem and the leading cryptocurrency exchange by trading volume and registered users. Trusted by over 300 million individuals across more than 100 countries, we pride ourselves on our outstanding security protocols, transparency in user funds, rapid trading engine, deep liquidity, and an extensive array of digital asset products. Our diverse offerings encompass trading, finance, education, research, payments, institutional services, Web3 innovations, and more. At Binance, we harness the potential of digital assets and blockchain technology to cultivate an inclusive financial ecosystem, advancing monetary freedom and enhancing financial accessibility for individuals globally.About the RoleWe are on the lookout for a highly skilled and experienced Senior Frontend Engineer to join our Web3 Wallet team. In this pivotal role, you will contribute to the development, enhancement, and maintenance of high-impact applications. Your responsibilities will include designing and building interactive dashboards, tools, automations, and publications that drive insights and efficiency for Binance and its leadership teams. The ideal candidate will possess strong engineering expertise in DEX Development and a passion for creating high-quality user experiences.

About TrafileaTrafilea is a leading Consumer Technology Platform dedicated to fostering transformative brand growth. We are on a mission to build the AI Growth Engine that will drive the next generation of consumer brands.With over $1 billion in cumulative revenue, more than 12 million customers, and a talent pool of over 500 individuals across 19 countries, we leverage technology, growth marketing, and operational excellence to scale our purpose-driven, digitally native brands.We own and manage our own digitally native brands (not an agency), featuring partnerships with major retailers like Walmart, Nordstrom, and Amazon, along with a robust global direct-to-consumer presence.Why Join Trafilea?As a tech-driven eCommerce group, we are scaling our own globally beloved DTC brands, while empowering ambitious talent to grow alongside us. We develop and scale our own brands. We invest in cutting-edge AI and automation in ways few in eCommerce do. We prioritize rapid testing and growth, and we support you in doing the same. Join a dynamic, diverse, and talented global team. 100% Remote work, competitive USD salary, paid time off, and additional benefits.Key ResponsibilitiesAs a Senior Frontend Engineer at Trafilea, you will integrate e-commerce excellence with innovative AI solutions. You will create state-of-the-art user experiences that enhance our globally recognized DTC brands. From storefronts to back-office applications, you’ll design and implement high-performing, scalable front-end solutions impacting millions of customers worldwide.If you are passionate about the synergy of technology, product, and design—and excel at delivering seamless user experiences—this is your chance to make a significant impact on a global scale.Develop, extend, and optimize ReactJS applications that facilitate core e-commerce functionalities including stores, carts, subscriptions, payments, and upselling.Create and implement extensible Shopify modules and integrate with platforms like Shogun (a plus).Contribute to and enhance Trafilea’s internal style system (Afrodita), focusing on reusable ReactJS components and shared UI patterns.Design intuitive back-office administrative tools for subscriptions, inventory management, and operations.Translate product and business requirements into user-friendly, scalable frontend solutions.Lead the design and implementation of frontend modules, ensuring alignment with architectural standards and business objectives.Maintain clear communication with teams and stakeholders, providing regular updates and comprehensive technical documentation (including diagrams, specifications, and libraries).Continuously enhance the performance, security, and scalability of our frontend ecosystem.Stay updated with the latest frameworks and trends in frontend development.

About SquadsSquads is an innovative financial technology firm dedicated to developing cutting-edge products and APIs for the stablecoin economy. We leverage open infrastructure and capitalize on global money and internet capital markets to enhance financial services for businesses, individuals, and developers alike.Our Product SuiteSquads Multisig: The leading multisignature platform for Solana, offering unparalleled security.Altitude: A comprehensive global business account designed for saving, earning, and transferring funds.Fuse: An intuitive personal finance application focused on stablecoins and tokenized assets.These products are fortified by our proprietary stablecoin infrastructure and developer platform, Grid.We are proud to be backed by esteemed investors such as Haun Ventures, Multicoin Capital, Electric Capital, and Coinbase Ventures, among others.With Squads Multisig, our self-custodial platform for asset management on Solana, we facilitate treasury management, program upgrades, validator operations, and token management. Trusted by over 450 teams to safeguard more than $15 billion in assets, Squads Multisig is the go-to solution for leading protocols in the Solana ecosystem, including Jito, Jupiter, Drift, Kamino, and Helius.Your RoleAs a Senior Frontend Engineer, you will be an integral part of our talented team that combines design and engineering expertise. You will take full ownership of developing intuitive, high-performance, and secure web applications based on the Squads Protocol. Your collaboration across product, design, and engineering will be vital in shaping user experiences from concept to deployment. This is a fantastic opportunity for a multidisciplinary creator who is passionate about crafting elegant interfaces and writing clean code.This role is perfect for someone who values autonomy, thrives in a dynamic environment, and seeks to make a significant impact in the fast-paced Web3 landscape.Key ResponsibilitiesQuickly implement functional and responsive UI components from designs, ensuring performance and accessibility.Lead the frontend architecture and contribute to the evolution of our design system.Work closely with product and engineering teams to deliver features from concept to launch.Enhance and maintain the application codebase with scalable, well-documented, and thoroughly tested code.Uphold high coding standards by participating in code reviews and mentorship.

Join Trust Wallet as a Senior Frontend Engineer in the exciting realm of Web3 trading! We are looking for talented individuals to help us build a seamless and efficient trading experience for our users. You will play a pivotal role in designing and implementing user-friendly interfaces that meet the needs of our global user base.

Note: This position is entirely remote; however, candidates must reside within the EMEA region to effectively collaborate with our team, peers, and internal stakeholders. Please apply only if you are physically located within EMEA.Hostaway is a trusted platform among over 20,000 property managers globally, specializing in AI-driven vacation rental management tailored for professional short-term rental operators. Our innovative solutions streamline operations, enhance efficiency, and accelerate growth.As a profitable, high-growth company, we proudly stand as the first unicorn in the short-term rental PMS sector. Join us during this thrilling phase of our journey! Learn more about our recent achievements and valuation here.About the RoleAs a Senior Frontend Engineer at Hostaway, you will take the lead in designing and enhancing the user interfaces that our customers depend on daily. You will be a vital part of our frontend architecture, collaborating closely with Product, Design, and Backend teams to create intuitive, high-performance user experiences at scale.Your responsibilities will extend beyond feature deployment; you will actively monitor live software, troubleshoot issues, and drive continuous improvements in performance, stability, and user experience. Additionally, you will contribute to elevating team standards through code reviews, mentorship, and providing technical leadership.ResponsibilitiesDesign, build, and maintain scalable, high-quality UI components, features, and reusable libraries aligned with our design system.Develop intuitive, performant, accessible, and responsive user experiences across various browsers and devices.Build and maintain frontend integrations with backend services to ensure seamless functionality.

About DualEntryEstablished in 2024, DualEntry is rapidly emerging as a leader in the AI sector, recognized as one of the fastest-growing startups globally.At DualEntry, we are defining the future of finance. The ERP market represents one of the largest fintech opportunities, exceeding $220 billion. Unfortunately, many businesses still rely on outdated on-premise systems, as the industry has seen little innovation in over three decades.Our AI-driven ERP platform empowers accounting teams to enhance productivity significantly. We have gained the trust of businesses ranging from startups with $5 million in annual recurring revenue to publicly traded companies, all leveraging our technology to automate tedious data entry tasks. We are transforming the finance landscape and eliminating the burdens of outdated ERPs from the 1990s.Our culture emphasizes urgency and ownership, enabling us to operate swiftly and effectively.Why This Role is Crucial NowIn just 18 months, we have successfully secured over $100 million in funding from prestigious investors, including Lightspeed Venture Partners, Khosla Ventures, Contrary Ventures, and Google Ventures, along with contributions from more than 20 angel investors who have previously built and scaled some of the most influential companies of the last decade.Our rapid progress is attributed to our dynamic hiring approach, assembling a highly skilled and dedicated team from leading technology and accounting firms, such as Ramp, Meta, Microsoft, Lyft, PwC, Deloitte, J.P. Morgan, Bloomberg, Sage, Xero, and Intuit. Some team members may not have renowned logos on their resumes, but they are here to seize the opportunity to showcase their talents.We are a small yet rapidly expanding team with significant momentum—join us early!This is a highly engaging, hands-on role where you will take full ownership of your work. We expect you to strive for excellence and continuously raise the bar. Location: Remote - available in all countries with a 4-hour+ overlap for the US ET timezone (NYC HQ)As our Senior/Staff Frontend Engineer, you will be responsible for building and managing key UI systems from start to finish using React and Next.js. This position requires a hands-on approach and total ownership of your projects.Where You'll Make an ImpactLead the end-to-end execution of essential frontend product experiencesDevelop and deploy high-impact UI components in React and Next.jsCraft interactive workflows that simplify complex accounting processesCollaborate with founders, product teams, designers, and backend engineers to enhance clarity and seamless user experiences

About Dash0At Dash0, we are revolutionizing the world of observability. Our OpenTelemetry-native platform is designed to be intuitive, user-friendly, and AI-driven, alleviating vendor lock-in and unnecessary complexity. Join us in creating a product that developers adore, complete with transparent pricing and built-in cost control.The OpportunityWe are seeking a Senior Product Engineer to enhance the user interface of a product that developers genuinely love. You'll become part of one of our innovative teams, such as Agent0, our cutting-edge Agentic AI Platform for Observability, or our Intelligent Edge solution, aimed at significantly reducing observability costs for our customers.This role transcends the traditional frontend position. Our users navigate through billions of signals, and your mission is to make data exploration seamless and intuitive rather than overwhelming. You will co-manage the frontend architecture, collaborating closely with product managers, designers, and backend engineers while championing the user experience in every decision made. We are in search of a Product Engineer, not just a software developer.What You'll DoDesign and implement a high-performing, user-friendly, and data-rich interface using React and TypeScript that transforms billions of observability signals into actionable insights.Share ownership of the frontend architecture, encompassing component design, state management, and overall structure, ensuring the UI remains efficient even with large datasets.Collaborate with product managers, designers, and backend engineers to shape both the appearance and functionality of the product, advocating for the user experience throughout.Deliver production code from week one, and within three months, contribute significant user-facing features that enhance data visualization and issue diagnosis for customers.Utilize AI and agentic coding tools to expedite development, applying technical judgment to refine and finalize outputs.Guide fellow engineers and promote frontend best practices throughout the team, including Tailwind CSS, testing frameworks, and component patterns.

Join us at CKEditor, a leading software development company, where we empower millions of users worldwide with our innovative solutions. Our flagship product, CKEditor 5, is an open-source, modern JavaScript (soon TypeScript) rich text editor designed with a custom data model and virtual DOM, allowing developers to create exceptional applications. Explore our GitHub repository to see our work in action. In addition, we are at the forefront of AI with CKEditor AI, which integrates intelligent features to enhance content creation.As part of Tiugo Technologies, we are a launchpad for next-gen developer platforms, helping software companies grow, optimize operations, and scale effectively. Our suite of brands includes CKEditor, TinyMCE, ButterCMS, and Uploadcare, all focused on content creation and digital collaboration.Our products support millions of applications and websites, playing a vital role in the content and communication landscape across various industries, including giants like Microsoft and NASA. Although you may not know our name, our software is likely a part of your daily digital experience.Your RoleContribute to the development and enhancement of CKEditor 5 and CKEditor AI;Produce clean, maintainable, and well-documented code, embracing good coding practices;Engage in code reviews, pair programming, and comprehensive testing;Promote best practices in programming standards, tools, and processes;Develop features and services that significantly enhance customer experience and drive company growth.

Phantom is at the forefront of revolutionizing personal finance, serving millions globally with our innovative money management application. We seamlessly integrate essential financial functionalities into a single, user-friendly platform, empowering users to navigate the complexities of crypto finance with ease.Our commitment to security, combined with intuitive design, ensures that advanced financial tools are accessible to everyone. As a testament to our success, we have cultivated a thriving community of over 20 million users, clinching the top spot in the Google Play Store's finance category and consistently ranking among the Top 50 apps across all sectors, alongside leading consumer tech giants.

Zencore, a dynamic and rapidly expanding company established by former leaders and architects from Google Cloud, is in search of experienced candidates to join our innovative team. We specialize in efficiently guiding customers through their transition to Google Cloud, focusing on overcoming challenges, minimizing risks, and expediting project timelines. Our approach involves closely integrating with client teams to offer strategic insights, streamline technology choices, and execute collaborative projects in a co-development manner.As a vital member of our Cloud Engineering team, you will collaborate with forward-thinking companies, utilizing Cloud technology as a pivotal element of their transformation journey. Your expertise will position you as a trusted advisor, integral to their success on Google Cloud. You will engage with a wide array of technical subjects, including infrastructure as code, application modernization via containerization and serverless platforms, CI/CD methodologies, cloud networking, and data analytics.Our foundational toolkit includes Google Cloud, the Hashicorp suite, Kubernetes, and more. We adopt an objective perspective toward our clients' needs, selecting the most suitable tools and processes based on foundational principles. We eagerly invite you to bring your innovative problem-solving strategies to our team.Note: This is a SHORT TERM CONTRACT (12 Weeks) with potential for extension.

Join DualEntry as a Senior Frontend EngineerFounded in 2024, DualEntry is rapidly emerging as a leader in the AI startup landscape. We are pioneering the future of finance with our innovative AI-native ERP system, designed to revolutionize the fintech sector, which boasts a staggering market size of over $220 billion.At DualEntry, we empower accounting teams to increase efficiency and reduce manual data entry through advanced AI technology. Our clients range from burgeoning businesses generating $5 million in annual recurring revenue to NYSE-listed corporations, all trusting us to streamline their financial operations. We are committed to transforming the traditional finance team structure and leaving behind the burdens of outdated ERPs.As a part of our dynamic team, you will experience an environment driven by urgency and ownership, where fast-paced decision-making is the norm.Why Your Role is CriticalIn just 18 months, we have secured over $100 million in funding from renowned investors including Lightspeed Venture Partners, Khosla Ventures, and Google Ventures. Our rapid growth is a testament to the exceptional talent we have assembled from top-tier tech and accounting firms such as Meta, Microsoft, and Deloitte.As a Senior Frontend Engineer, you will take full ownership of developing and maintaining high-performance web applications, ensuring a seamless user experience. This hands-on role demands a commitment to excellence and the ability to make swift decisions to propel our projects forward.Location: Fully remote, with occasional collaboration expected during EST business hours.

Alt is revolutionizing the alternative assets market, beginning with the $5 billion trading card industry. We empower collectors to buy, sell, vault, and finance their cards seamlessly, with backing from industry leaders like Stripe, Coinbase, and pro athletes such as Tom Brady and Giannis Antetokounmpo. Our next goal is to implement real-time pricing at scale—the Alt Value that drives all transactions, loans, and products on our platform.About Alt:&nbsp;At Alt, we are constructing the financial infrastructure needed for modern collectors, streamlining payments, lending, pricing, and liquidity for alternative assets. Our flagship mobile application, which boasts ratings of 4.9 on iOS and 4.6 on Android, serves as a hub for thousands of users to manage, appraise, and trade their collections in real time. As we expand our global reach, we are seeking exceptional builders for our engineering team who are eager to take ownership of significant product features and help shape the future of fintech and marketplaces.The Role:&nbsp;We are in search of a Senior Fullstack Engineer, Frontend with extensive React Native expertise to become a key member of our mobile team. You will be responsible for the end-to-end development of our flagship mobile experience, playing a pivotal role in the architecture, scalability, and performance of our application. This is a high-impact and high-visibility position: your contributions will directly influence the core product experience driving Alt’s growth. We seek someone who is not only focused on completing tasks but is also deeply committed to customer satisfaction, striving to create delightful experiences and deliver genuine value to the collectors and enthusiasts who depend on Alt.This role is perfect for individuals eager to define technical direction, mentor fellow engineers, and eventually transition into leadership or management roles as we grow.You will also contribute to our React-based web application, with a focus split of approximately 70% frontend and 30% backend, following a mobile-first approach.What You’ll Do:</span>

Join Our Innovative Team!At Cacheflow, we are on a mission to revolutionize the software purchasing experience. Our platform leverages cutting-edge technologies to empower software sellers to simplify and enhance the buying process for their customers.Our Technology Stack:We utilize AWS, Java, React, and TypeScript to build scalable solutions that drive our business forward.

Join Assured as a Senior Frontend Engineer and play a pivotal role in transforming the insurance industry. Our mission is to revolutionize claims processing, which remains a largely manual and inefficient process costing billions annually. At Assured, we empower major insurers with innovative software solutions that are reshaping the landscape of claims management, from user-friendly self-service claim filing to advanced fraud detection systems. Your expertise will help us enhance the digital experiences we provide to claimants during their most vulnerable times, ensuring clarity and comfort. As part of our dynamic and collaborative team, you will lead significant aspects of our B2B SaaS platform, optimizing performance and usability while fostering an environment of innovation and excellence.

Join Phantom, the innovative money management app that's transforming the financial landscape for millions globally. Our platform seamlessly integrates essential tools for managing, spending, and growing money into a user-friendly experience. At Phantom, we empower users with the control and flexibility of crypto finance, all while eliminating unnecessary complexities associated with traditional financial platforms.Our commitment to industry-leading security combined with expertly designed tools ensures that powerful financial solutions are both accessible and easy to navigate. This dedication to user experience has led to remarkable growth, with over 20 million active users, a #1 ranking in the Google Play Store finance category, and a consistent spot among the Top 50 apps across all categories, standing shoulder to shoulder with the most recognized consumer technology brands worldwide.Key ResponsibilitiesAs a Senior Frontend Engineer, you will be passionate about delivering outstanding user experiences characterized by sharp visuals, fluid transitions, and intuitive user journeys—all while maintaining an agile approach to development. You'll possess the discernment to know when to refine features and when to prioritize speed in deployment.Your focus on reliability, thorough testing, and performance will complement your exceptional communication skills, allowing you to effectively collaborate with designers, product managers, and backend engineers to ensure rapid development without compromising quality.In this role, you will take ownership of core user experiences, contributing to the creation of a world-class and trustworthy application.

Join us at geobrowser as we create an innovative world built on blockchain technology and decentralized networks. In this role, you will be responsible for developing the user interface that enables communities to organize knowledge and information, achieve consensus on a shared knowledge graph, and explore this information in a verifiable manner.Key ResponsibilitiesTransform concepts into engaging user interfaces that enhance functionality.Develop complex React components, including features such as drag & drop and virtualized rendering for large datasets.Technologies We UseReact with Emotion for frontend development, utilizing hooks for functional composability.Legend State for seamless data binding to the UI.IPFS / Arweave for efficient data storage solutions.Polygon and other Layer 2 solutions for blockchain data anchoring.The Graph for indexing and querying public data via GraphQL.A design system featuring a comprehensive React component library.

About UpDocAt UpDoc, we are pioneering the development of the world's first clinically validated, physician-supervised conversational agent designed to manage chronic diseases. This groundbreaking initiative represents the first step towards creating a genuine "AI doctor". With esteemed partners such as Stanford, Mayo Clinic, Eli Lilly, UCSF Health, and Microsoft, UpDoc is committed to building a future where every patient can access top-tier, personalized care. Discover more about our mission here.We are on the lookout for a skilled and enthusiastic Frontend Engineer to become a vital member of our team. In this role, you will contribute significantly to the development of our patient mobile applications and physician-facing interfaces. This position allows for full remote work.Who You AreYou are a Frontend Engineer with robust experience in TypeScript and Svelte, adept at constructing modern web applications. You possess a deep knowledge of SvelteKit, Tailwind, and the broader frontend ecosystem, and you are excited to leverage that expertise in building applications for both patients and providers that interface with various EHR systems and Android/iOS PWAs. Familiarity with Capacitor, Kotlin, or Swift is advantageous. You prioritize user experience, reliability, and the meaningful impact your work can have on the healthcare sector.What You'll DoContribute to the development and maintenance of patient and provider-facing applications utilizing SvelteKit, Tailwind, and TypeScript.Create progressive web applications compatible with both Android and iOS platforms.Enhance PWAs with Kotlin and Swift native code plugins to facilitate access to local device APIs.Implement integrations with various health data sources, including CGMs and Apple HealthKit.Collaborate closely with backend engineers to design and utilize APIs, ensuring secure and reliable data transfers.Work in tandem with designers to transform prototypes into accessible and high-performance interfaces.Engage with clinical experts to validate application functionality and ensure patient safety.What You’ll NeedMinimum of 4 years of experience in TypeScript and web development.At least 4 years of experience working with Svelte or similar component-based frameworks.Strong expertise in Svelte and SvelteKit.Proficient in Tailwind CSS.Familiarity with CapacitorJS is a plus.Exposure to Kotlin and Swift is an advantage.

Our Purpose at Clipboard:At Clipboard, we are dedicated to empowering individuals to ascend the socioeconomic ladder. Our innovative app-based marketplace transforms the lives of professionals by enabling them to convert their extra time and ambitions into career advancement and financial success. We connect skilled professionals with workplaces seeking on-demand talent, revolutionizing the way work is done.About Us:Clipboard is a rapidly expanding Series C marketplace, recognized as a leader in the Long Term Care sector while diversifying into other fields such as Dental Offices and Schools. Celebrated as a YC Top Company, we boast a global, remote workforce of over 700 dedicated individuals. With profitable operations since 2022, we fill millions of shifts annually across the U.S., where tens of thousands of professionals partner with us each year. We’re on a mission to grow further and serve even more individuals and workplaces. Discover more about us on our website.Your Mission: Learn, Evolve, and Make a DifferenceAs a Frontend Software Engineer at Clipboard Health, you will not only develop features but also hone your skills, address tangible challenges, and contribute to solutions that make a significant impact in the healthcare sector. If you aspire to advance your career in a dynamic, high-impact environment and desire to take charge of meaningful projects, this position is tailored for you. This role is always open as we are consistently seeking talented software engineers to join our team.Your Responsibilities: Take Ownership and Shape the FutureCraft Scalable, High-Performance CodeDevelop and maintain features primarily using TypeScript, React, Node.js, and NestJS.Oversee the Entire Software Development LifecycleManage everything from problem definition and design to development, testing, demonstration, and supporting production code.Deploy your code utilizing trunk-based development, short-lived feature branches, and automated regression testing.Collaborate with Product Managers and UsersWork closely with product managers and clients to understand their needs and ensure successful product implementations.

Join Tether and Transform the Future of Digital FinanceAt Tether, we are not merely creating products; we are leading a global financial revolution. Our innovative solutions empower businesses—from cryptocurrency exchanges and digital wallets to payment processors and ATMs—to effortlessly integrate reserve-backed tokens across multiple blockchains. By leveraging the power of blockchain technology, Tether allows users to store, send, and receive digital tokens instantly, securely, and globally, all at a reduced cost. Transparency is at the core of our operations, fostering trust in every transaction.Innovate with TetherTether Finance: Our cutting-edge product suite features the world’s most reliable stablecoin, USDT, trusted by millions globally, along with pioneering services for digital asset tokenization.But that’s just the beginning:Tether Power: We are committed to sustainable growth, utilizing our energy solutions to optimize surplus power for Bitcoin mining through eco-friendly practices in advanced, geographically diverse facilities.Tether Data: Driving innovations in AI and peer-to-peer technology, we minimize infrastructure costs and enhance global communication with groundbreaking solutions like KEET, our flagship application that redefines secure and private data sharing.Tether Education: We are democratizing access to top-tier digital education, empowering individuals to excel in the digital and gig economies, thereby fostering global growth and opportunity.Tether Evolution: At the crossroads of technology and human potential, we are expanding the limits of what is achievable, shaping a future where innovation and human capabilities converge in powerful, unprecedented ways.Why Join Us?Our team is a global powerhouse of talent, collaborating remotely from all over the world. If you are enthusiastic about making a significant impact in the fintech sector, this is your chance to work with some of the brightest minds, pushing boundaries and setting new standards. We have experienced rapid growth, maintained agility, and secured our position as a key player in the industry.