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Frontend Developer Jobs in Watertown, MA (NOW HIRING)

Horizontal Talent

Senior CMS Developer Optimizely

Woburn, MA · Remote

$122K - $161K/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.

Posted today

Horizontal Talent

Senior CMS Developer Optimizely

Weymouth, MA · Remote

$122K - $160K/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.

Posted today

Horizontal Talent

Senior Optimizely CMS Developer

Newton, MA · Remote

$126K - $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.

Posted today

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.

Posted today

Horizontal Talent

Senior Optimizely CMS Developer

Everett, 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.

Posted today

Horizontal Talent

Senior CMS Developer Optimizely

Watertown, MA · Remote

$125K - $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.

Posted today

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.

Posted today

Horizontal Talent

Senior Optimizely CMS Developer

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.

Posted today

Horizontal Talent

Senior Optimizely CMS Developer

Chelsea, MA · Remote

$125K - $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.

Posted today

Horizontal Talent

Senior Optimizely CMS Developer

Lexington, MA · Remote

$128K - $168K/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.

Posted today

Horizontal Talent

Senior CMS Developer Optimizely

Peabody, MA · Remote

$127K - $167K/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.

Posted today

Horizontal Talent

Senior CMS Developer Optimizely

Cambridge, MA · Remote

$126K - $166K/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.

Posted today

Horizontal Talent

Senior CMS Developer Optimizely

Arlington, MA · Remote

$130K - $171K/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.

Posted today

Horizontal Talent

Senior CMS Developer Optimizely

Beverly, MA · Remote

$126K - $166K/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.

Posted today

Horizontal Talent

Senior CMS Developer Optimizely

Brockton, 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.

Posted today

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.

Posted today

Horizontal Talent

Senior Optimizely CMS Developer

Arlington, MA · Remote

$130K - $171K/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.

Posted today

Horizontal Talent

Senior CMS Developer Optimizely

Needham, MA · Remote

$126K - $166K/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.

Posted today

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Showing results 41-60

All JobsFrontend Developer JobsFrontend Developer Jobs in Watertown, MA

Frontend Developer information

See Watertown, MA salary details

$46.2K

$120.1K

$169.1K

How much do frontend developer jobs pay per year?

As of Aug 12, 2026, the average yearly pay for frontend developer in Watertown, MA is $120,083.00, according to ZipRecruiter salary data. Most workers in this role earn between $113,100.00 and $131,600.00 per year, depending on experience, location, and employer.

What is a frontend developer?

Frontend Developers are professionals who design and build the user-facing parts of websites and web applications. They use technologies like HTML, CSS, and JavaScript to create interactive and visually appealing interfaces that users interact with directly in their browsers. Frontend Developers work closely with designers and backend developers to ensure a seamless and responsive user experience across different devices and platforms. Their role often includes optimizing website performance, ensuring accessibility, and maintaining code quality.

What is the difference between Frontend Developer vs Web Designer?

AspectFrontend DeveloperWeb Designer
Primary FocusBuilding and coding website interfaces using HTML, CSS, JavaScriptDesigning visual layout, user experience, and aesthetics
Skills & CertificationsHTML, CSS, JavaScript, frameworks, coding skillsDesign tools (Photoshop, Sketch), UX/UI principles
Work EnvironmentCollaborates with developers and backend teams in tech settingsWorks with clients, marketing teams, and creative departments
Industry UsageWeb development companies, tech firms, startupsDesign agencies, marketing firms, freelance projects

While both roles contribute to website creation, a Frontend Developer focuses on coding and implementing interactive features, whereas a Web Designer emphasizes visual design and user experience. Understanding these differences helps in choosing the right career path or job search focus.

How do frontend developers collaborate with designers and backend teams during a project?

Frontend Developers regularly work closely with UX/UI designers to ensure that visual elements are accurately translated into interactive web pages and applications. They also coordinate with backend developers to integrate APIs and manage data flow between the server and the user interface. Regular meetings, code reviews, and collaborative tools like version control systems help streamline communication and maintain consistency across the project. This teamwork is essential to deliver a cohesive and high-performing end product.

What exactly does a front-end developer do?

A front-end developer designs and implements the visual and interactive elements of websites or applications using languages like HTML, CSS, and JavaScript. They focus on creating user-friendly interfaces, ensuring responsiveness across devices, and often work with design tools and frameworks to build functional, accessible web experiences.

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

To thrive as a Frontend Developer, you need a solid grasp of HTML, CSS, JavaScript, and modern frameworks like React or Angular, often supported by a degree in computer science or a related field. Familiarity with version control systems (e.g., Git), responsive design tools, and web performance optimization techniques is typically required. Creativity, attention to detail, and strong problem-solving abilities help you build intuitive, user-friendly interfaces and collaborate effectively with design and backend teams. These skills and qualities are crucial for delivering high-quality, interactive web applications that meet user and business needs.

Are frontend developers still in demand?

Frontend developers are currently in high demand due to the growth of web applications and digital services. Skills in HTML, CSS, JavaScript, and frameworks like React or Angular are especially sought after by employers across various industries.
What cities near Watertown, MA are hiring for Frontend Developer jobs? Cities near Watertown, MA with the most Frontend Developer job openings:
Frontend Developer jobs near you
Infographic showing various Frontend Developer job openings in Watertown, MA as of August 2026, with employment types broken down into 87% Full Time, and 13% Contract. Highlights an 75% In-person, and 25% Remote job distribution, with an average salary of $120,083 per year, or $57.7 per hour.

Senior Optimizely CMS Developer

Horizontal Talent

Somerville, MA • Remote

$125K - $164K/yr

Full-time

Posted 16 hours ago

Posted today

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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