ZipRecruiter

Log In

1

Senior Javascript Developer Jobs in Chester, PA (NOW HIRING)

TherapyNotes.com

Senior Software Developer

Philadelphia, PA · On-site +1

$110K - $135K/yr

About The Position TherapyNotes is seeking a Senior Software Developer to help drive the evolution ... Strong experience with Angular, .NET Core, C#, TypeScript, JavaScript, and HTML/CSS * Solid ...

USLI

Senior Developer

Wayne, PA · On-site

$49.50 - $65.25/hr

Senior Developer Location: Wayne, PA About Us: At USLI, we're not just about insurance - we are ... NET, JavaScript/jQuery/jSON, Knockout.js, Angular.js, SQL Server, SQL/XML and emerging Microsoft ...

Vangard, Inc.

Senior Mobile DevOps Engineer

Malvern, PA · On-site

$127K - $163K/yr

We are looking for a Senior DevOps Engineer to join our team. You will provide senior level mobile ... React Native (TypeScript/JavaScript) * Familiarity with using mobile analytics tools (e.g ...

Vanguard Group

Senior Mobile DevOps Engineer

Malvern, PA · On-site

$127K - $163K/yr

We are looking for a Senior DevOps Engineer to join our team. You will provide senior level mobile ... React Native (TypeScript/JavaScript) * Familiarity with using mobile analytics tools (e.g ...

Mirai, LLC

Senior .NET Developer

Philadelphia, PA

$55.50 - $70.75/hr

The Senior .NET Developer principally supports the Global Financials Systems team, in addition to ... Demonstrated Microsoft Development skills in C#, WCF, Web Services, ASP.NET, JavaScript, Angular ...

Mirai, LLC

Senior .NET Developer

Philadelphia, PA · On-site

$55.50 - $70.75/hr

The Senior .NET Developer principally supports the Global Financials Systems team, in addition to ... Demonstrated Microsoft Development skills in C#, WCF, Web Services, ASP.NET, JavaScript, Angular ...

Implify Inc

.Net Developer

Wayne, PA · On-site

$43.75 - $57.75/hr

Position: 2 Role: Sr.Net Developer Location: Wayne, PA Duration: Full Time (Permanent) Opportunity ... Net Development (all tiers) SQL Server Development Experience with Kendo UI and JavaScript driven ...

USM

Senior .Net Developer

King Of Prussia, PA

$55/hr

Senior .Net Developer Location: KOP, PA Duration: Long Term Max rate: $55/hr only MUST BE LOCAL ... Net MVC with some JavaScript framework, preferably Angular. Hands-on with Dependency Injection and ...

Horizontal Talent

Sr. Optimizely Developer

Philadelphia, PA · Remote

$116K - $152K/yr

This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS ... Advanced frontend experience with HTML5, CSS3/SASS, and JavaScript, including Vanilla JS, ES6 ...

New

previous pagenext page

Showing results 21-40

All JobsJavascript Developer JobsSenior Javascript Developer JobsSenior Javascript Developer Jobs in Chester, PA

Senior Javascript Developer information

See Chester, PA salary details

$29

$58

$76

How much do senior javascript developer jobs pay per hour?

As of Aug 10, 2026, the average hourly pay for senior javascript developer in Chester, PA is $58.27, according to ZipRecruiter salary data. Most workers in this role earn between $52.16 and $66.30 per hour, depending on experience, location, and employer.

What is a senior JavaScript developer?

A Senior JavaScript Developer is a highly experienced programmer specializing in JavaScript, including frameworks like React, Angular, or Node.js. They are responsible for designing, developing, and optimizing web applications, ensuring high performance and maintainability. Additionally, they provide technical leadership, mentor junior developers, and collaborate with cross-functional teams to deliver scalable solutions. Strong problem-solving skills, deep knowledge of JavaScript best practices, and experience with modern development tools are essential for this role.

What are typical challenges faced by senior JavaScript developers in day-to-day work?

Senior Javascript Developers often encounter complex challenges such as optimizing web application performance, ensuring code scalability and maintainability, and integrating with diverse APIs and services. They are also expected to troubleshoot legacy code and address security vulnerabilities, all while keeping up with the rapidly evolving JavaScript ecosystem. Collaborating with designers, product managers, and junior developers can add layers of complexity to project requirements. However, overcoming these challenges is rewarding and provides opportunities to shape technical strategy and influence best practices within the team.

What are the key skills and qualifications needed to thrive as a senior JavaScript developer?

To thrive as a Senior Javascript Developer, a strong command of JavaScript (including ES6+), advanced front-end frameworks (like React, Angular, or Vue), and back-end technologies (such as Node.js) are essential, along with several years of professional coding experience. Familiarity with version control systems (like Git), CI/CD pipelines, and relevant certifications (e.g., AWS Certified Developer or JavaScript certifications) is highly valued. Excellent problem-solving abilities, mentorship skills, and effective communication help developers collaborate and lead within cross-functional teams. These skills enable Senior Javascript Developers to build robust applications, guide junior team members, and drive innovation in fast-paced tech environments.

What are popular job titles related to Senior Javascript Developer jobs in Chester, PA? For Senior Javascript Developer jobs in Chester, PA, the most frequently searched job titles are:
What cities near Chester, PA are hiring for Senior Javascript Developer jobs? Cities near Chester, PA with the most Senior Javascript Developer job openings:
Senior Javascript Developer jobs near you

Senior Software Developer

TherapyNotes.com

Philadelphia, PA • Remote

$110K - $135K/yr

Full-time

Medical, Dental, Vision, Life, Retirement

Re-posted 4 days ago

Job description

About Us

TherapyNotes is the go-to superhero for behavioral health Practice Management and EHR software! Our top-notch SaaS solution handles scheduling, billing, documenting, telehealth, and more so clinicians can focus on awesome patient care.

We're a dynamic team of pros who love to innovate and push the envelope, keeping our software cutting-edge. Join us, and let's revolutionize behavioral health software together while making a real difference!

About The Position

TherapyNotes is seeking a Senior Software Developer to help drive the evolution of our platform. You'll work across the stack, influence architecture, and own features from design through release. If you enjoy solving complex technical problems and mentoring others, this role gives you room to make a real impact.

What You'll Do

  • Build and maintain features across Angular, ASP.NET Core, C#, and PostgreSQL
  • Design and implement scalable APIs and services (SOA/eventdriven)
  • Contribute to architecture decisions around performance, reliability, and maintainability
  • Collaborate with a strong engineering team and participate in reviews and design discussions
  • Support and mentor developers as the team grows

What You Bring

  • 5+ years professional software development experience
  • BS in a technical discipline (Computer Science or Software Engineering preferred)
  • Strong experience with Angular, .NET Core, C#, TypeScript, JavaScript, and HTML/CSS
  • Solid understanding of OOP, design patterns, and modern architecture
  • Experience building APIs and working with relational databases
  • Great communication and problemsolving skills

Why Join Us

Work on software that supports mental health professionals, contribute to meaningful technical decisions, and be part of a collaborative, quality focused engineering culture.

What We Offer

  • Competitive salary $110,000 - $135,000
  • Employer sponsored health, dental, vision, life, and disability insurance
  • Retirement plan with company contribution
  • Annual company profit sharing
  • Personal development/training budget
  • Open, collaborative work environment
  • Extensive 2-week onboarding plan
  • Comprehensive mentorship program

Equal Opportunity Employer Statement & Applicant Rights
TherapyNotes LLC is an Equal Opportunity Employer and does not discriminate based on race, color, religion, sex, national origin, age, disability, genetic information, or any other protected status under federal, state, or local law. We are committed to providing a workplace free of discrimination and harassment. For more information about your rights under federal employment laws, please review the following-

  • Know Your Rights- Workplace Discrimination is Illegal
  • Family and Medical Leave Act (FMLA)- Employee Rights Under FMLA

If you require a reasonable accommodation during the application process, please contact humanresources@therapynotes.com.

#LI-Remote

7/7/2026

Requirements

Benefits

Apply