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Top Senior Level Javascript Jobs in Philadelphia, PA

636+ Job Results
Yesterday
3 Locations
Remote
91 Employees
Senior level
91 Employees
Senior level
Software • Web3
As a Front End Software Developer at CoLab, you will understand complex customer problems, collaborate to design solutions, develop user-facing features, participate in code reviews, and mentor junior developers. You will focus on user experience and contribute to the technical direction while maintaining high standards of software quality.
Yesterday
US
Remote
225 Employees
160K-180K Annually
Senior level
225 Employees
160K-180K Annually
Senior level
Healthtech
The Staff Salesforce Developer will design, develop, and implement Salesforce solutions using best practices involving Lightning components and API integrations. Responsibilities include collaborating with teams, collecting business requirements, maintaining the Salesforce environment, and ensuring a quality development lifecycle.
Yesterday
United States
Remote
188 Employees
Senior level
188 Employees
Senior level
Design
The Freelance Senior Developer is responsible for creating highly functional interactive experiences, focusing on front-end development while also engaging in back-end systems. This role involves managing project expectations, ensuring team communication, assisting in quality assurance, and applying expertise in UX/UI to support projects.
Yesterday
United States
Remote
93 Employees
150K-160K Annually
Senior level
93 Employees
150K-160K Annually
Senior level
eCommerce
The Senior Full Stack Software Engineer will lead software development tasks, mentor team members, and collaborate closely with Product and UI/UX teams to create responsive front-end applications. The role involves developing, testing, and maintaining both front-end and back-end solutions while following Agile methodologies and ensuring software quality and performance.
Yesterday
USA
Remote
3,700 Employees
181K-212K Annually
Senior level
3,700 Employees
181K-212K Annually
Senior level
Cloud • Fintech • Cryptocurrency • NFT • Web3
Seeking experienced frontend engineers to build the next generation of crypto-forward products and features for Coinbase's Consumer Product Group. Responsibilities include designing secure services, building mass market interfaces for digital currency apps, writing infrastructural services, and collaborating with teams to execute the roadmap.
Yesterday
United States
Remote
2,828 Employees
103K-150K Annually
Senior level
2,828 Employees
103K-150K Annually
Senior level
Healthtech
The Senior Software Engineer at Inovalon will design and implement secure, resilient distributed systems, enhance system performance, and lead engineering excellence. Responsibilities include mentoring team members, collaborating with various stakeholders, and ensuring compliance with policies regarding data handling.
Yesterday
14 Locations
Remote
4,898 Employees
125K-155K Annually
Senior level
4,898 Employees
125K-155K Annually
Senior level
Digital Media • Fintech • Information Technology
The Senior Manager will shape and optimize the website architecture for Dow Jones' B2B digital presence, focusing on developing a custom WordPress theme and managing plugin updates. They will lead performance testing, drive code deployments, and ensure seamless site experience by collaborating with various teams and addressing QA issues.
Top Benefits:
401-K
Commuter Benefits
Company Outings
+21 More
2 Days Ago
2 Locations
Remote
205 Employees
Senior level
205 Employees
Senior level
Fintech • Financial Services
As a Senior Fullstack Engineer at Farther, you will take full-stack ownership of multiple domains including user interfaces and data layers. You will be responsible for developing features with a focus on user experience, translating designs into functional components, and enhancing back-end systems. The role requires expertise in creating high-quality TypeScript code and working with various technologies including React and AWS.
Top Benefits:
401-K
401-K Matching
Commuter Benefits
+20 More
2 Days Ago
8 Locations
Remote
4,900 Employees
156K-208K Annually
Senior level
4,900 Employees
156K-208K Annually
Senior level
Fintech • Payments
The Genesys Cloud Developer will design and implement scalable business solutions using Genesys Cloud technologies. Responsibilities include defining interaction flows, administration of cloud solutions, collaborating with stakeholders, and ensuring compliance with company standards while supporting projects of moderate to significant complexity.
Top Benefits:
401-K
Adoption Assistance
Company Equity
+18 More
2 Days Ago
8 Locations
254 Employees
Senior level
254 Employees
Senior level
Marketing Tech • Analytics
As a Senior AI Engineer, you will develop prototypes and microservices, create MLOps pipelines, automate processes, and support AI workshops. Collaborating closely with teams, you will implement AI-driven solutions to improve business workflows.
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