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Remote Senior Backend Developer Jobs in Philadelphia, PA

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Remote Senior Backend Developer information

See Philadelphia, PA salary details

$64.6K

$141.1K

$192.2K

How much do remote senior backend developer jobs pay per year?

As of Aug 18, 2026, the average yearly pay for remote senior backend developer in Philadelphia, PA is $141,110.00, according to ZipRecruiter salary data. Most workers in this role earn between $121,600.00 and $157,900.00 per year, depending on experience, location, and employer.

What is a remote senior backend developer?

A Remote Senior Backend Developer is an experienced software engineer who specializes in building and maintaining the server-side logic, databases, and APIs of web or mobile applications while working from a location outside the traditional office. They are responsible for designing scalable and efficient systems, ensuring data security, and collaborating with frontend developers and other team members. Their role often includes mentoring junior developers, reviewing code, and making architectural decisions to support the application's growth.

How does a remote senior backend developer typically collaborate with distributed teams to ensure project success?

As a Remote Senior Backend Developer, you will frequently collaborate with cross-functional teams, including front-end developers, DevOps engineers, and product managers, using digital tools like Slack, Jira, and GitHub. Clear, proactive communication and regular participation in virtual stand-ups or sprint meetings are essential for aligning on project goals and timelines. You'll also review code, provide mentorship, and contribute to architectural decisions, helping to maintain high code quality and system stability across time zones. Successfully navigating asynchronous workflows and documenting your work are key to ensuring smooth collaboration in a remote environment.

What are the key skills and qualifications needed to thrive as a remote senior backend developer, and why are they important?

To thrive as a Remote Senior Backend Developer, you need advanced programming skills (commonly in languages such as Python, Java, or Node.js), strong understanding of databases, system architecture, and several years of relevant experience. Proficiency with cloud platforms (like AWS or Azure), containerization tools (such as Docker or Kubernetes), and version control systems (like Git) is typically required, and certifications in these technologies can be beneficial. Excellent problem-solving abilities, proactive communication, and self-motivation are crucial soft skills for collaborating effectively in distributed teams. These competencies ensure robust, scalable backend solutions and seamless team productivity in a remote work environment.

What is the difference between Remote Senior Backend Developer vs Remote Backend Developer?

AspectRemote Senior Backend DeveloperRemote Backend Developer
Required Experience5+ years, leadership skills often expected1-3 years, foundational backend skills
ResponsibilitiesDesigning architecture, mentoring, complex problem-solvingImplementing features, maintaining APIs, coding tasks
Work EnvironmentCollaborative teams, project planning, code reviewsDevelopment-focused, task-specific work
CertificationsOften preferred: AWS, Scrum, or similarNot typically required

The main difference between a Remote Senior Backend Developer and a Remote Backend Developer lies in experience, responsibilities, and leadership expectations. Senior developers handle complex architecture and mentorship, while backend developers focus on coding and feature implementation. Both roles are vital in tech companies, but senior roles require more experience and strategic input.

What are popular job titles related to Remote Senior Backend Developer jobs in Philadelphia, PA?

For Remote Senior Backend Developer jobs in Philadelphia, PA, the most frequently searched job titles are:

What job categories do people searching Remote Senior Backend Developer jobs in Philadelphia, PA look for?

The top searched job categories for Remote Senior Backend Developer jobs in Philadelphia, PA are:

What cities near Philadelphia, PA are hiring for Remote Senior Backend Developer jobs?

Cities near Philadelphia, PA with the most Remote Senior Backend Developer job openings:

Remote Senior Backend Developer jobs near you

Senior Optimizely CMS Developer

Horizontal Talent

Norristown, PA • Remote

$109K - $144K/yr

Full-time

This job post has expired today. Applications are no longer accepted.

Job description

Join a fast-moving digital marketing team that is investing heavily in modern web technology, experimentation, and data-driven growth. This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS solutions, launching sophisticated experiments, and using AI-assisted tools to work faster and smarter.

Responsibilities
  • Build and maintain reusable components, page templates, and content models within Optimizely CMS to help marketing teams launch web pages efficiently.
  • Design CMS architecture that supports scalability, security, and strong performance, including Core Web Vitals optimization.
  • Develop and support integrations between Optimizely CMS and enterprise platforms such as Salesforce, Marketo, Adobe Commerce, and internal systems.
  • Create and deploy advanced A/B, split, and multivariate tests in Optimizely Web Experimentation, including custom DOM manipulation and dynamic content changes.
  • Implement personalized web experiences for targeted B2B audiences and account-based marketing campaigns.
  • Partner on server-side testing and feature flagging when frontend testing is not the best fit.
  • Perform thorough cross-browser and cross-device testing to help ensure smooth, consistent user experiences with minimal flicker or layout shift.
  • Define and document best practices, technical standards, and governance guidelines for Optimizely-related work.
  • Collaborate closely with CRO, product, and design teams to evaluate ideas, prototype solutions, and translate designs into polished digital experiences.
  • Use AI-assisted development tools to accelerate coding, debugging, testing, and experimentation workflows.
Skills
  • 5+ years of full-stack web development experience.
  • At least 3+ years of hands-on experience working within the Optimizely ecosystem.
  • Strong backend development skills with C# and .NET Core/MVC, especially in Optimizely CMS environments.
  • Advanced frontend experience with HTML5, CSS3/SASS, and JavaScript, including Vanilla JS, ES6+, jQuery, React, or Vue.
  • Deep understanding of Optimizely platform concepts such as Project JS, visual tags, audience targeting, anti-flicker approaches, and caching behavior.
  • Experience building for complex B2B websites, including lead generation and gated content workflows.
  • Strong Git knowledge and familiarity with modern CI/CD workflows such as Azure DevOps or GitHub Actions.
  • Ability to work independently while also partnering effectively with cross-functional teams.
  • A proactive, solution-oriented mindset with a focus on speed, quality, and continuous improvement.
Preferred Skills
  • Active Optimizely Developer certification in CMS or Web Experimentation.
  • Experience supporting server-side experimentation and feature flagging initiatives.
  • Familiarity with UX/UI collaboration and translating wireframes or Figma designs into interactive experiences.
  • Comfort using AI tools such as GitHub Copilot or ChatGPT to support development efficiency.
  • Experience working in remote-first environments and collaborating across multiple locations.

Horizontal is committed to fostering an inclusive environment where all qualified candidates can thrive. We value diversity, equity, and inclusion as essential to building strong teams, better ideas, and better outcomes.

By applying for this position, you acknowledge and agree that Horizontal Talent may contact you regarding your application using automated technology, including phone calls, SMS/text messages, or email, which may be delivered by our virtual AI recruiter, Alex.

Apply