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Senior Fullstack Engineer I Jobs

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Senior Fullstack Product Software Engineer
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Join Dropbox as a Senior Fullstack Product Software Engineer in the United States. Design and develop seamless, scalable user experiences using your expertise in JavaScript, React, Node.js, and Python. Take ownership of key product areas, mentor junior engineers, and enjoy competitive benefits in...
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United States
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174100.00 - 265000.00 USD / Year
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Dropbox
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Senior Fullstack Product Software Engineer
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Join Dropbox as a Senior Fullstack Product Software Engineer in Canada. Lead the design of seamless, scalable user experiences using your expertise in JavaScript, React, Node.js, and Python. Own key product areas, mentor junior engineers, and enjoy competitive benefits including flexible PTO and ...
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Canada
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184500.00 - 249500.00 CAD / Year
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Dropbox
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Senior Fullstack Engineer w/ .NET
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Seeking a Senior Fullstack Engineer in Iasi, Romania, to develop high-quality software using C# and .NET. You will design, code, and test applications within an Agile SCRUM team, with a strong focus on TDD and SQL. We offer flexible work, a development plan, and a collaborative team environment f...
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Romania , Iasi
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Not provided
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SABS
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Senior Fullstack Node/React Engineer
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Join a leading team as a Senior Fullstack Engineer, developing impactful applications with Node.js, React/Vue, and AWS. Leverage your 5+ years of experience in TypeScript and event-driven architecture. Enjoy premium benefits, flexible vacations, and a hybrid role in Buenos Aires.
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Argentina , Gran Buenos Aires; Capital Federal; Mar del Plata
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Not provided
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BASIC/DEPT®
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Senior fullstack software engineer
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Join our dynamic team in Sydney as a Senior Fullstack Engineer. You'll own features in our host console using JavaScript/TypeScript, Node, React, AWS, and MongoDB. We offer autonomy, top tools, and a mission-driven culture focused on building great products.
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Australia , Sydney
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Not provided
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Humanitix
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Senior Fullstack Engineer, Pricing
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Join Sotheby's in London to revolutionize a 276-year-old industry as a Senior Fullstack Engineer. You will build a modern marketplace using Golang and React, designing robust APIs and distributed systems. This role requires 5+ years of experience, excellent communication, and a drive to innovate ...
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United Kingdom , London
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Not provided
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Sotheby's
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Senior Fullstack Engineer, Auction
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Join Sotheby's to revolutionize a 276-year-old auction house. As a Senior Fullstack Engineer in London, you'll build modern marketplace experiences using Golang/Scala and React. You'll design robust APIs and distributed systems, collaborating in a global, fast-paced team.
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United Kingdom , London
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Not provided
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Sotheby's
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Senior Software Engineer fullstack - Growth & GTM
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Join TheFork as a Senior Fullstack Engineer in Paris, focusing on Growth & GTM. You will enhance the leading B2B SaaS platform, TheFork Manager, using Node.js, TypeScript, React, and cloud technologies. Champion engineering best practices in a collaborative, flexible environment with competitive ...
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France , Paris
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Not provided
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Tripadvisor
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Senior Software Engineer - Fullstack (Java and Angular)
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Join 3Pillar as a Senior Fullstack Engineer (Java & Angular) in India. Leverage your 6+ years with Java 11+, Spring Boot, and Microservices to architect transformative solutions. Enjoy a remote-first culture, collaborate with global teams, and drive innovation in agile projects across key industr...
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India
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3Pillar Global
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Senior Fullstack Engineer - AI group
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Join Island's AI group in Tel Aviv as a Senior Fullstack Engineer. Shape the future of the enterprise browser by developing cutting-edge, agentic AI systems. You'll need 5+ years of fullstack experience with modern cloud platforms and a passion for AI. Build intelligent, autonomous systems that t...
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Israel , Tel Aviv
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Island
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Senior Fullstack Engineer
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Join a top-tier Series A startup as a Senior Fullstack Engineer. Take end-to-end ownership of complex features using TypeScript, React, and Tailwind CSS. Enjoy a remote role with an aggressive equity package, working within ±3 hours of CET. We value kindness, collaboration, and technical excellence.
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100000.00 - 150000.00 EUR / Year
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Peec AI GmbH
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Senior / Staff Fullstack Engineer
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Join Linear's fully remote team as a Senior/Staff Fullstack Engineer. Build elegant, high-performance features using React, TypeScript, and GraphQL for a leading project management tool. Enjoy impactful work, a focus on craftsmanship, and benefits like competitive salary, equity, and ample vacation.
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Linear
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Senior Fullstack QA Engineer - Backend
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Join TradingView, the world's leading investing platform. As a Senior Fullstack QA Engineer in Limassol, you'll ensure quality for core backend systems, focusing on API testing and automation. We seek an expert in HTTP/WebSocket protocols, Linux, and test frameworks. Enjoy flexible hours, a hybri...
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Cyprus , Limassol
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TradingView
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Senior Fullstack Engineer
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Seeking a highly autonomous Senior Fullstack Engineer to architect and drive our high-load Sales Productivity Platform. You'll own the full stack with TypeScript, building SaaS modules like AI Insights and Campaign Orchestration. Enjoy remote-first flexibility, competitive pay, and a culture focu...
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Belkins
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Senior Fullstack Engineer
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Join our growing team as a Senior Fullstack Engineer in Ho Chi Minh City. Tackle complex challenges building web applications with React and Node.js. Enjoy a competitive salary, performance bonus, premium health insurance, and a collaborative culture. Make a significant impact on in-house product...
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Vietnam , Ho Chi Minh City
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Kite Metric
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Senior Fullstack Engineer
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Join Elliptic in London as a Senior Fullstack Engineer. Use your expert TypeScript, React, and Nest.js skills to build tools that collect and analyze crypto crime intelligence. Work in a hybrid model with a team dedicated to making the cryptocurrency ecosystem safer. Enjoy benefits like a remote ...
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United Kingdom , London
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Not provided
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Elliptic
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Senior Software Engineer, Email Team (Fullstack)
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Join OneSignal's Email Team as a Senior Fullstack Software Engineer. Develop scalable UI and API solutions for a leading customer engagement platform using TypeScript, Ruby, and Rust. Own features end-to-end in a collaborative, product-focused environment. Enjoy competitive equity and comprehensi...
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United States
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170000.00 - 190000.00 USD / Year
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OneSignal
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Senior FullStack Software Engineer
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Join a leading European online car marketplace as a Senior FullStack Engineer. Shape the platform for over 30 million users using modern tech like TypeScript, Node.js, and Next.js. Leverage AI tools in your workflow and enjoy a flexible, remote-friendly environment with strong professional growth...
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N-iX
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Senior FullStack Software Engineer
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Join a leading European online car marketplace as a Senior FullStack Engineer. Develop high-traffic platforms using modern tech like TypeScript, Node.js, and Next.js/React. Leverage AI tools (ChatGPT, LangChain) to innovate and shape the user experience for millions. Enjoy flexible remote work fr...
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Ukraine
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Not provided
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N-iX
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Senior Fullstack Engineer
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Join mobile.de's Consumer Selling team in Berlin as a Senior Fullstack Engineer. You'll build scalable applications using React, TypeScript, and Java 21 with Spring Boot in a collaborative, agile environment. Enjoy benefits like ample paid leave, a mobility allowance, and a strong development bud...
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Germany , Berlin
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Not provided
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Adevinta
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Until further notice

About the Senior Fullstack Engineer I role

Explore Senior Fullstack Engineer I jobs and discover a pivotal career at the intersection of frontend and backend development. A Senior Fullstack Engineer I is an experienced professional responsible for designing, building, and maintaining complete web applications and software systems. This role demands a holistic understanding of the entire software development lifecycle, from conceptualizing user interfaces to architecting robust server-side logic and databases. Professionals in these jobs are technical leaders who bridge the gap between client-side and server-side technologies, ensuring seamless, performant, and scalable digital products.

Typical responsibilities for someone in this senior capacity extend beyond pure coding. They often include architecting system solutions, making pivotal technology stack decisions, and writing clean, efficient code for both frontend and backend components. A key duty is developing and maintaining RESTful or GraphQL APIs that serve as the communication layer between different parts of an application. Furthermore, Senior Fullstack Engineer I jobs commonly involve optimizing applications for maximum speed, scalability, and security. These engineers are also expected to mentor junior developers, advocate for engineering best practices like code reviews and testing, and collaborate closely with product managers, designers, and other stakeholders to translate business requirements into technical specifications.

The skill set for these roles is comprehensive. On the frontend, proficiency in modern JavaScript frameworks like React, Angular, or Vue.js is standard, coupled with deep knowledge of HTML, CSS, and state management. On the backend, expertise in one or more server-side languages such as Python (with Django/Flask), Java, C#, Node.js, or PHP (Laravel/Symfony) is essential. They must be adept at working with various database technologies, including SQL (e.g., PostgreSQL, MySQL) and often NoSQL (e.g., MongoDB). Experience with cloud platforms (AWS, Azure, GCP), containerization (Docker), and infrastructure-as-code tools is increasingly common. Crucially, a Senior Fullstack Engineer I possesses strong problem-solving abilities, a product-focused mindset, and excellent communication skills to explain complex technical concepts to non-technical teams.

Common requirements for candidates seeking Senior Fullstack Engineer I jobs typically include 5+ years of hands-on software development experience with a proven track record in fullstack roles. A bachelor’s degree in computer science or a related field is often preferred but not always mandatory with equivalent experience. Employers look for individuals who are self-starters, capable of leading projects independently while thriving in a collaborative team environment. A passion for continuous learning and adapting to new technologies is paramount in this ever-evolving field. If you are a versatile engineer who enjoys owning products from end to end and driving technical excellence, exploring Senior Fullstack Engineer I jobs could be the next step in your career.

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