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Senior Javascript Developer Jobs in Portland, ME

Esri

Sr. GIS Apps Product Engineer

Portland, ME · On-site

They are seeking a Sr. GIS Apps Product Engineer to drive the development and testing of mobile and ... JavaScript • Proven track record of delivering sustainable software solutions • Ability to ...

Compunnel

Senior Software QA Engineer

Westbrook, ME · On-site

We are seeking a Software QA Engineer to join our R&D Diagnostic Software organization, helping to ... Proficiency in TypeScript and JavaScript * Experience testing REST APIs and services * Experience ...

Esri

Sr. GIS Apps Product Engineer

Portland, ME · On-site

... JavaScript * Proven track record of delivering sustainable software solutions * Ability to ... multiple engineering teams * Bachelor's degree in GIS, computer science, or a related field ...

Maximus

Assoc SW Engineer - Java, Spring Boot, AWS

Biddeford, ME · Remote

$54.25 - $74.25/hr

... or Senior Engineer. As a member of the team Associate Engineer will participate in all phases of ... Javascript - Novice - JSP / JSF - Novice - Eclipse IDE - Novice - Junit - Fundamental Awareness ...

New

Maximus

Assoc SW Engineer - Java, Spring Boot, AWS

Auburn, ME · Remote

$55.75 - $76.50/hr

... or Senior Engineer. As a member of the team Associate Engineer will participate in all phases of ... Javascript - Novice - JSP / JSF - Novice - Eclipse IDE - Novice - Junit - Fundamental Awareness ...

New

Maximus

Assoc SW Engineer - Java, Spring Boot, AWS

Portland, ME · Remote

$53 - $72.75/hr

... or Senior Engineer. As a member of the team Associate Engineer will participate in all phases of ... Javascript - Novice - JSP / JSF - Novice - Eclipse IDE - Novice - Junit - Fundamental Awareness ...

New

Esri

Sr. GIS Apps Product Engineer

Portland, ME · On-site

$93.60K - $159.33K/yr

... JavaScript * Proven track record of delivering sustainable software solutions * Ability to ... multiple engineering teams * Bachelor's degree in GIS, computer science, or a related field ...

Agri-Cycle Energy LLC

Data Engineer

South Portland, ME · On-site

$118.80K - $142.60K/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 · ...

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Senior Javascript Developer information

See Portland, ME salary details

$31

$61

$80

How much do senior javascript developer jobs pay per hour?

As of May 31, 2026, the average hourly pay for senior javascript developer in Portland, ME is $61.14, according to ZipRecruiter salary data. Most workers in this role earn between $54.76 and $69.57 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 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.

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.
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Senior Javascript Developer jobs near you
iOS Sr Developer(Full Time)

iOS Sr Developer(Full Time)

EROS Technologies, Inc.

Portland, ME • Hybrid

$53 - $73/hr

Other

Posted yesterday

Job description

Company Description

EROS Technologies was founded with a simple motive of offering the clients exactly what they want, how they want and when they want it. By leveraging for its clients its technological edge and right-sourcing advantage, EROS in a short period of time has grown to become one of the most trusted strategic technology partners. Treating every client as the top priority, we customize our solutions and services to align with the unique needs of each client.

Job Description

iOS Sr Developer

Location : Portland,ME

Position : Full Time

Sr iOS Developer with experience more than 4-5 years.

- Experience building libraries and API using Objective 'C'.

- Team player , experienced worked in distributed team setup.

- Hands experience on iPhone 5, 6 and iPads.

- Exposure to Git and Atlassisan tools for e.g. JIRA , Stash , Confluence is big plus.

- Nice to have swift background

- Nice to have Hybrid application development using HTML , JavaScript , CSS

- Nice to have - open source contributor; Show us your github projects.

- Location - Portland , ME in banking and financial domain. C22

Additional Information

All your information will be kept confidential according to EEO guidelines.

Eros Technologies logo

About Eros Technologies

Sourced by ZipRecruiter

We create a culture that inspires us to work smart, together. Experience Eros is dedicated to delivering services to all our Fortune 100 to Fortune 500, SME, and Enterprise customers in the USA, Canada, and India. Eros Technologies is a leading Global Consulting and IT services company, offering a wider variety of solutions customized to the needs of demanding industries and diversified business environments. We help clients move forward in every part of their businesses, from strategic planning to day-to-day operations by enhancing our consulting and outsourcing expertise with alliances and other capabilities. Eros can mobilize the right people, skills, and technologies to help its clients improve their performances. We create Solutions with the aim of increasing your organization’s efficiency, productivity, and profits.

Industry

Human resources consulting services

Company size

1,001 - 5,000 Employees

Headquarters location

Lewes, DE, US

Year founded

2015

Social media

Facebook

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