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Top Senior Level Javascript Jobs in Philadelphia, PA

635+ Job Results
20 Days Ago
2 Locations
Remote
265 Employees
172K-205K Annually
Senior level
265 Employees
172K-205K Annually
Senior level
Hardware • Manufacturing
You will develop a production-grade software system for PsiQuantum's fault-tolerant quantum computers. Responsibilities include building Single Page Applications, ensuring security best practices and collaboration with cross-functional teams while focusing on performance, scalability, and security.
21 Days Ago
United States
Remote
30 Employees
Senior level
30 Employees
Senior level
Software • Design
The Senior Full-Stack Developer at GivingData will develop and maintain web applications, utilizing React and C#/ .NET for server-side logic. Responsibilities include translating requirements into code, building responsive UIs, and managing databases while working closely with teams to meet project goals.
21 Days Ago
United States
Remote
483 Employees
Senior level
483 Employees
Senior level
Healthtech
The Salesforce Solutions Architect will design and implement scalable solutions across the Salesforce ecosystem, focusing on Health Cloud and Data Cloud. Responsibilities include data modeling, leading integration efforts, and collaborating with technical teams to align solutions with business objectives. The role requires strong leadership and communication skills, along with the ability to mentor and guide Salesforce teams.
21 Days Ago
USA
Remote
31 Employees
Senior level
31 Employees
Senior level
Logistics • Transportation
The Senior Frontend/UI Software Engineer will lead the development of enterprise-scale applications, working primarily with .NET/.NET Core and ASP.NET Core Blazor, while also utilizing JavaScript and related web technologies. They will be responsible for system code maintenance, documentation, and contributing to project solutions within a fast-paced environment, adapting to new technologies as required.
21 Days Ago
United States
Remote
141 Employees
115K-160K Annually
Senior level
141 Employees
115K-160K Annually
Senior level
Edtech • Software • Database
As a Senior Software Engineer at Veracross, you will focus on backend engineering for the Finance product team, working on the Student Billing and Accounting systems. Responsibilities include improving Ruby on Rails applications, working extensively with SQL for database optimization, providing technical mentorship, and integrating third-party systems.
21 Days Ago
United States of America
278 Employees
Senior level
278 Employees
Senior level
Information Technology • Consulting
As a Lead Software Engineer at Nuna, you'll guide projects involving data-intensive web applications, mentor junior engineers, and ensure technical success of healthcare-related applications. You'll collaborate with analysts and design secure, scalable, and reliable APIs while driving quality and best practices in software development.
21 Days Ago
USA
Remote
80 Employees
Senior level
80 Employees
Senior level
Automotive • Software
As a Staff Engineer at Cardata, you will design and develop both front-end and back-end applications, collaborate with cross-functional teams, implement features and bug fixes, and lead junior engineers. Tasks include writing maintainable code, participating in code reviews, implementing automated testing, and defining technical requirements to ensure high-quality software delivery.
21 Days Ago
USA
Remote
299 Employees
Senior level
299 Employees
Senior level
Information Technology • Software
The Senior QA Automation Engineer will analyze application functionality, design automated tests, maintain QA reports, and collaborate with the engineering team to ensure application performance and stability in Boostlingo's SaaS products.
21 Days Ago
USA
Remote
375 Employees
Senior level
375 Employees
Senior level
Aerospace • Hardware • Logistics • Robotics • Software • Transportation
As a Senior Full Stack Software Engineer at Zipline, you will collaborate with teams to design and develop software solutions that enhance the drone delivery system's efficiency and operations. Responsibilities include building applications, optimizing existing systems, and contributing to architectural decisions.
Top Benefits:
401-K
Company Equity
Company Outings
+40 More
21 Days Ago
2 Locations
Remote
230 Employees
Senior level
230 Employees
Senior level
Blockchain
As a Senior Backend Software Engineer, you'll build and own web services critical to Solana Mobile's products. Responsibilities include developing new services for the mobile app storefront, enhancing existing services, automating deployments in a cloud environment, and ensuring system performance and reliability.
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