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Senior Fullstack Software Engineer Jobs

39 Job Offers

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Senior Software Engineer, Fullstack (App Experience)
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Join Affirm as a Senior Fullstack Engineer shaping mobile and web app experiences. Requires 4+ years, React/React Native, and API skills. Enjoy full medical coverage, flexible PTO, and ESPP in Canada.
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153000.00 - 213000.00 CAD / Year
Affirm
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Senior Software Engineer, Fullstack
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Senior Fullstack Engineer role in NYC to architect and scale AI/ML infrastructure and workflow orchestration for healthcare. Requires 5+ years building distributed systems, cloud architecture expertise, and end-to-end ownership in a 0-to-1 in-office environment.
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Assured
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Senior Software Engineer, Fullstack (App Experience)
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Senior Fullstack Engineer role driving consumer app experiences across mobile and web at Affirm. Requires 4+ years with React, React Native, and API development in Kotlin or Python. US-based with equity, health benefits, and flexible time off.
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173000.00 - 255000.00 USD / Year
Affirm
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Senior Software Engineer, Fullstack, Rewards & Incentives
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Senior Fullstack Engineer role at RAIN building rewards and incentives features with JavaScript, TypeScript, React Native, NestJS and Node.js. Own full-stack product work from design to launch in San Francisco with strong benefits.
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Hinge Health
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Senior Software Engineer - Fullstack
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Join Heidi as a Senior Fullstack Engineer in Melbourne, building collaboration features and scalable authorization systems with Python, TypeScript and React. Help double the world's capacity for care.
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Heidi
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Senior Fullstack Software Engineer
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Senior Fullstack Engineer role in Tampa building AI-driven data tools for defense acquisition. Requires 5+ years fullstack experience with TypeScript, Next.js, Express, Postgres. Offers flexible schedule, remote work, and sizeable equity.
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Obviant
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Senior Software Engineer, Fullstack
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Join Echodyne in Kirkland as a Senior Fullstack Engineer to build resilient radar software. Requires 7+ years in production systems, React, async Rust/Tokio, and Python or C++. Enjoy RSUs and fully-paid medical, dental, and vision.
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Echodynecorp
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Senior Software Engineer - Fullstack
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Join UJET in Porto as a Senior Fullstack Engineer to build AI-powered contact center solutions. Requires 5+ years of fullstack experience with Java, Go, Ruby or Python and React or Angular, plus microservices and datastore expertise.
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UJET
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Senior Software Engineer II, Fullstack (AI)
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Senior Fullstack Engineer role at LG Ad Solutions in Denver, building scalable CTV advertising reporting platforms with React, Node.js, and AI tools. Requires 5+ years fullstack experience. Salary $162K-$264K plus bonus and full benefits.
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LG Ad Solutions
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Senior Software Engineer - FullStack
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Senior FullStack Engineer role in Pune requiring 6+ years with Python, Django, PostgreSQL and multi-tenant SaaS expertise. Join Xplor Mariana Tek to build scalable fitness studio software with Ember, Docker and modern testing practices in a remote-first team.
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Xplor
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Senior Software Engineer - FullStack
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Senior FullStack Engineer role in Pune requiring 6+ years experience with Python, Django, PostgreSQL and multi-tenant SaaS. Join Xplor Mariana Tek to build smart fitness studio management software in a remote, collaborative team.
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Xplor
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Senior Software Engineer - Fullstack
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133000.00 - 161000.00 USD / Year
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CesiumAstro
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Senior Software Engineer - Fullstack (Productivity Engineering)
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LinkedIn
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Senior Fullstack Software Engineer - Online Jobs
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LinkedIn
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Senior Fullstack Software Engineer (Kotlin/Java/React) - Fintech
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Delivery Hero
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Senior Software Engineer I- Fullstack
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Aledade PBC
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Senior Software Engineer (Java FullStack + Agentic Ai)
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Altisource
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Senior Software Engineer - Fullstack
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LinkedIn
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Senior Software Engineer - Fullstack
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LinkedIn
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Senior .NET Software Engineer (Fullstack) / 1
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Inetum
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About the Senior Fullstack Software Engineer role

Explore the dynamic and in-demand field of Senior Fullstack Software Engineer jobs, where technical mastery meets strategic vision. A Senior Fullstack Software Engineer is a pivotal technical professional responsible for designing, building, and maintaining all layers of a modern software application, from the user-facing frontend to the server-side logic and database backend. This role transcends basic coding; it involves architecting robust, scalable, and secure systems that drive business value and user satisfaction. Professionals in these positions are expected to own the entire software development lifecycle for major features, ensuring seamless integration and performance across the entire technology stack.

Typical responsibilities for a Senior Fullstack Engineer are comprehensive. They analyze complex technical requirements and translate them into effective software solutions. A key part of the role is active collaboration within cross-functional teams, working closely with product managers, UX/UI designers, and other engineers to refine concepts and sculpt product designs. They write clean, maintainable code for both frontend and backend components, implement integration tests, and champion code quality through rigorous practices like code reviews and Test-Driven Development (TDD). Beyond initial development, senior engineers are instrumental in establishing DevOps practices, setting up CI/CD pipelines for automated deployment, and providing critical post-launch support including bug fixes and performance optimization. They often take a leadership role in mentoring junior developers and shaping a team's engineering culture towards best practices and continuous improvement.

The typical skill set required for these senior-level jobs is extensive. On the backend, proficiency in languages like Java, Python, or Node.js coupled with frameworks such as Spring Boot or .NET is common. Frontend expertise usually involves deep knowledge of JavaScript and modern libraries or frameworks like React, Angular, or Vue.js. A strong grasp of database technologies, both SQL and NoSQL, is essential. Crucially, senior roles demand experience with cloud-native development (AWS, Azure, GCP), API design, and containerization. Equally important are the soft skills: excellent problem-solving abilities, effective communication to coordinate with technical and non-technical stakeholders, and a product-minded approach to development. Most positions seek candidates with 5+ years of hands-on experience, a proven track record in shipping complex applications, and a passion for staying current with evolving technologies. For those seeking a challenging career at the heart of digital innovation, Senior Fullstack Software Engineer jobs offer the opportunity to build impactful products from end to end, driving technological excellence and business success.