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Top Senior Level Javascript Jobs in Philadelphia, PA

635+ Job Results
21 Days Ago
United States
Remote
150 Employees
Senior level
150 Employees
Senior level
Fintech • Information Technology • Mobile • Payments • Software
Senior Software Engineer at Reach Financial responsible for building modern full stack B2C loan origination system and collaborating with cross-functional teams to improve tech platforms and processes. Requires 5+ years of hands-on software development experience, expertise in object-oriented programming languages like Typescript/Javascript, Python or Java, and familiarity with CI/CD, version control, and test automation frameworks.
Top Benefits:
401-K
401-K Matching
Commuter Benefits
+25 More
21 Days Ago
United States
Remote
58 Employees
95K-230K Annually
Senior level
58 Employees
95K-230K Annually
Senior level
Blockchain • Information Technology
As a Senior Software Engineer at Matcha, you will develop growth strategies, create user-friendly features, work autonomously in a collaborative team, and engage with the evolving blockchain space. Responsibilities involve cross-functional collaboration and promoting a growth-focused engineering culture.
22 Days Ago
United States
Remote
69 Employees
Senior level
69 Employees
Senior level
Healthtech
A Senior Full Stack Engineer role at Accompany Health involves setting the technology foundation for microservices and UI architecture, designing APIs and core services, owning features, ensuring feature quality post-release, and contributing to team milestones. Desired skills include proficiency in Go, Java, Ruby, C#, Scala, TypeScript, React, Graphql, Vite, Esbuild, and strong understanding of web performance.
22 Days Ago
USA
Remote
78 Employees
Senior level
78 Employees
Senior level
HR Tech • Software
As a Senior Full Stack Developer at JobLeads, you will guide and mentor a team to create web applications using PHP and Symfony for backend development, while leveraging Vue.js and SSR for dynamic front-end experiences. Your role includes code reviews, collaboration with cross-functional teams, and continuous learning of emerging technologies.
22 Days Ago
USA
Remote
27 Employees
175K-250K Annually
Senior level
27 Employees
175K-250K Annually
Senior level
Artificial Intelligence • Software
The Lead Software Engineer will implement product features, oversee product architecture and quality, and mentor colleagues. The role requires ownership of the user experience and collaboration within the engineering team to develop a full stack web application for creating presentations.
22 Days Ago
United States
Remote
815 Employees
Senior level
815 Employees
Senior level
Fintech • HR Tech • Social Impact • Software • Financial Services
As a Senior Full-Stack Engineer, you will design, build, and maintain user experiences and foundational services for 401(k) plans, collaborate with teams, and ensure systems are observable, maintainable, and scalable. You will also contribute to engineering standards and mentor other engineers.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+52 More
22 Days Ago
United States
Remote
110 Employees
Senior level
110 Employees
Senior level
Information Technology • Internet of Things
As a DevOps Engineer at Tenna, you will manage, optimize, and automate the AWS infrastructure and deployment processes. You will write scripts in JavaScript and Bash, lead the Engineering Team in adopting dev operations practices, design high-availability systems, and troubleshoot issues in collaboration with teams while ensuring security and compliance standards.
22 Days Ago
United States
Remote
43 Employees
Senior level
43 Employees
Senior level
Big Data • Analytics • Hospitality
The Senior Fullstack Engineer at Kalibri Labs will design, build, and scale their SaaS-based business intelligence platform, Hummingbird PXM. Key responsibilities include developing frontend functionalities, collaborating on backend development, defining software best practices, mentoring team members, and ensuring system security. The engineer will work in an agile team and actively contribute to the CI/CD model while optimizing application performance and scalability.
22 Days Ago
USA
Remote
220 Employees
140K-170K Annually
Senior level
220 Employees
140K-170K Annually
Senior level
Healthtech
The Sr Full Stack Java Software Engineer will build and support health care web applications in the cloud, mentor junior developers, design new features, and ensure best practices in software development including testing and documentation.
22 Days Ago
United States
Remote
1,287 Employees
135K-140K Annually
Senior level
1,287 Employees
135K-140K Annually
Senior level
Edtech • Software
As a Senior Software Engineer at Amplify, you will develop front-end applications using React, improve app reliability and uptime, build API integrations, and optimize software for educational tools while ensuring security and privacy. You'll collaborate in a cross-functional team and contribute to improving digital learning experiences.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+47 More
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