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Senior Front End Developer Jobs in Boston, MA (NOW HIRING)

Horizontal Talent

Senior Optimizely CMS Developer

Boston, MA · Remote

$124K - $164K/yr

This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS ... Partner on server-side testing and feature flagging when frontend testing is not the best fit.

Horizontal Talent

Senior CMS Developer Optimizely

Salem, MA · Remote

$125K - $165K/yr

This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS ... Partner on server-side testing and feature flagging when frontend testing is not the best fit.

Horizontal Talent

Senior Optimizely CMS Developer

Revere, MA · Remote

$118K - $155K/yr

This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS ... Partner on server-side testing and feature flagging when frontend testing is not the best fit.

Horizontal Talent

Senior CMS Developer Optimizely

Lowell, MA · Remote

$115K - $151K/yr

This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS ... Partner on server-side testing and feature flagging when frontend testing is not the best fit.

Horizontal Talent

Senior CMS Developer Optimizely

Quincy, MA · Remote

$120K - $158K/yr

This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS ... Partner on server-side testing and feature flagging when frontend testing is not the best fit.

Horizontal Talent

Senior Optimizely CMS Developer

Lowell, MA · Remote

$115K - $151K/yr

This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS ... Partner on server-side testing and feature flagging when frontend testing is not the best fit.

Horizontal Talent

Senior CMS Developer Optimizely

Malden, MA · Remote

$119K - $157K/yr

This Senior Optimizely Developer role is a great fit for someone who enjoys building scalable CMS ... Partner on server-side testing and feature flagging when frontend testing is not the best fit.

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All JobsFront End Developer JobsSenior Front End Developer JobsSenior Front End Developer Jobs in Boston, MA

Senior Front End Developer information

See Boston, MA salary details

$42.4K

$144.6K

$197.2K

How much do senior front end developer jobs pay per year?

As of Sep 4, 2026, the average yearly pay for senior front end developer in Boston, MA is $144,556.00, according to ZipRecruiter salary data. Most workers in this role earn between $124,900.00 and $164,000.00 per year, depending on experience, location, and employer.

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

To thrive as a Senior Front End Developer, you need advanced proficiency in HTML, CSS, JavaScript, and modern frameworks like React, Angular, or Vue, along with a degree in computer science or equivalent experience. Familiarity with version control systems (e.g., Git), build tools (Webpack, Babel), and testing frameworks is typically required. Exceptional problem-solving, communication, and leadership skills help you collaborate effectively and mentor junior developers. These skills are crucial for delivering scalable, maintainable applications and ensuring a seamless user experience in complex web projects.

What are some common challenges senior front end developers face when leading projects, and how can they address them?

Senior Front End Developers often encounter challenges such as balancing the implementation of new technologies with project deadlines, ensuring code quality across a team, and coordinating with backend and UX/UI teams for seamless integration. Proactively setting coding standards, conducting regular code reviews, and fostering open communication with cross-functional teams can help mitigate these challenges. Additionally, staying updated on industry best practices and mentoring junior developers ensures both project success and team growth.

What is the difference between Senior Front End Developer vs Front End Developer?

AspectSenior Front End DeveloperFront End Developer
Required CredentialsBachelor's degree in CS or related field, experience with advanced JavaScript frameworksBachelor's degree or equivalent, basic knowledge of HTML, CSS, JavaScript
Work EnvironmentCollaborates on complex projects, mentors junior developersWorks on standard features, under supervision
Employer & Industry UsageTech companies, agencies, startupsSame as senior role, often entry-level
Search & Comparison IntentHigher experience, leadership, complex tasksEntry-level, learning, basic tasks

The main difference between a Senior Front End Developer and a Front End Developer lies in experience, responsibilities, and expertise. Senior developers handle complex projects, mentor others, and possess advanced skills, while front end developers focus on standard features and basic coding tasks. Both roles are essential in tech companies, but the senior position requires more experience and leadership capabilities.

What are the most commonly searched types of Front End Developer jobs in Boston, MA?

The most popular types of Front End Developer jobs in Boston, MA are:

What are popular job titles related to Senior Front End Developer jobs in Boston, MA?

For Senior Front End Developer jobs in Boston, MA, the most frequently searched job titles are:

What job categories do people searching Senior Front End Developer jobs in Boston, MA look for?

The top searched job categories for Senior Front End Developer jobs in Boston, MA are:

What cities near Boston, MA are hiring for Senior Front End Developer jobs?

Cities near Boston, MA with the most Senior Front End Developer job openings:

Senior Front End Developer jobs near you
Infographic showing various Senior Front End Developer job openings in Boston, MA as of August 2026, with employment types broken down into 74% Full Time, and 26% Contract. Highlights an 81% In-person, 5% Hybrid, and 14% Remote job distribution, with an average salary of $144,556 per year, or $69.5 per hour.

Senior CMS Developer Optimizely

Horizontal Talent

Needham, MA • Remote

$126K - $166K/yr

Full-time

Posted 24 days ago

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.

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