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Senior Javascript Developer Jobs in Portland, ME

Maine Medical Center

Senior Developer

Portland, ME · On-site

$55.75 - $73.75/hr

The Senior Developer leads the hands-on architecture, development, and maintenance of MaineHealth ... Strong modern JavaScript, CSS, and HTML, with responsive and accessible front-end development.

MaineHealth

Senior Developer

Portland, ME · On-site

$55.75 - $73.75/hr

MaineHealth Corporate is seeking a Senior Developer to lead the architecture, development, and ... Javascript/CSS/HTML required. Preferred : • 5+ years of progressive, hands-on web development ...

IDEXX

Senior Application Security Engineer

Westbrook, ME · On-site

$59.75 - $80/hr

... security findings into developer-friendly remediation guidance with code examples and ... JavaScript, Go) sufficient to review code for security issues • Experience with API security ...

Agri-Cycle Energy LLC

Data Engineer

South Portland, ME · On-site

$118K - $142K/yr

We are seeking a Senior Automation & Data Systems Engineer to design and build the internal systems ... or JavaScript/TypeScript (both preferred) · Experience with SQL and relational databases · ...

All JobsSenior Javascript Developer JobsSenior Javascript Developer Jobs in Portland, ME

Senior Javascript Developer information

See Portland, ME salary details

$31

$61

$81

How much do senior javascript developer jobs pay per hour?

As of Jun 21, 2026, the average hourly pay for senior javascript developer in Portland, ME is $61.80, according to ZipRecruiter salary data. Most workers in this role earn between $55.34 and $70.34 per hour, depending on experience, location, and employer.

What is a Senior Javascript Developer job?

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 in the Senior Javascript Developer position, and why are they important?

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.

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Senior Javascript Developer jobs near you
Senior Developer

Senior Developer

Maine Medical Center

Portland, ME • On-site

$55.75 - $73.75/hr

Full-time

Posted 9 days ago

Maine Medical Center rating

7.0

Company rating: 7.0 out of 10

Based on 56 frontline employees who took The Breakroom Quiz

478th of 1,001 rated hospitals

Job description

Description
MaineHealth Corporate
Professional - Nonclinical
Req #: 79044
Summary:
The Senior Developer leads the hands-on architecture, development, and maintenance of MaineHealth's web platform and connected products - primarily MaineHealth.org on Drupal 11 and AWS. This role owns platform architecture, builds features and integrations, and keeps a high-traffic healthcare site fast, secure, and reliable for 1.1 million people across Maine and New Hampshire. The Senior Developer partners with content, UX, and analytics colleagues to turn a unified patient-experience vision into working software, and helps shape the technical roadmap.
Required Minimum Knowledge, Skills, and Abilities (KSAs)
  1. Education: Bachelor's Degree with an emphasis in Computer Science, Engineering or related field preferred.
  2. License/Certifications: N/A
  3. Experience: Five years of progressive experience in product management development and Open Source development stack required. Expert experience in content management systems required. Strong experience with API/Data Integrations, Javascript/CSS/HTML required. Two years supervisory experience preferred.

Preferred Skills:
    • 5+ years of progressive, hands-on web development experience.
    • Expert-level PHP and enterprise CMS development; Drupal strongly preferred (we run Drupal 11): custom module and theme development, entity/field architecture, and Drupal's core APIs.
    • Demonstrated AWS experience across EC2, S3, CloudFront, and Aurora/RDS, with infrastructure-as-code (CloudFormation) for provisioning and deployment.
    • Strong modern JavaScript, CSS, and HTML, with responsive and accessible front-end development.
    • Proven API and data-integration work (REST/GraphQL) connecting web platforms to enterprise systems of record.
    • Search implementation experience (Apache Solr or equivalent) preferred.
    • Web analytics implementation experience (GA4, tag management, dashboarding) preferred.
    • Experience managing development or technical vendors a plus.
    • Working knowledge of web accessibility (WCAG 2.1/2.2, Section 508), security, and performance (Core Web Vitals) best practices.
    • Healthcare or other regulated-industry experience a plus.

Expectations of this role
  • Platform architecture and infrastructure - own the AWS environment and Drupal 11 platform that the site runs on, managed as infrastructure-as-code.
  • Application and feature development - build and maintain features in PHP/Drupal against a defined product roadmap.
  • Systems integration - connect the web platform to its sources of truth (HRIS, Jobvite, Google Business Profile, provider and location data, and others) so what's published stays accurate.
  • Analytics and dashboard implementation - GA4, Google Search Console, Crazy Egg, and Looker Studio reporting.
  • Technical leadership - set code standards and mentor team members.
  • Technical performance, reliability, and security - keep the lights on for a system serving patients on what may be a hard day.

Hiring Scam Alert
MaineHealth will never request financial information during the interview or pre-hiring process. All legitimate communications will come from an email address ending in @mainehealth.org. If you suspect fraudulent activity, please report it immediately to [email protected] .
Additional Information
With a career at any of the MaineHealth locations across Maine and New Hampshire, you'll be working with health care professionals that truly value the people around them - both within the walls of the organization and the communities that surround it.
We offer benefits that support an individual's needs for today and flexibility to plan for tomorrow - programs such as paid parental leave, a flexible work policy, student loan assistance, training and education, along with well-being resources for you and your family.
MaineHealth remains focused on investing in our care team and developing an inclusive environment where you can thrive and feel supported to realize your full potential. If you're looking to build a career in a place where people help one another deliver best-in-class care, apply today.
If you have questions about this role, please contact [email protected]

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