3,334 Lead Javascript Developer jobs in the United States

Are you an experienced Developer with a passion for digital transformation? We are hiring a Lead Full Stack JavaScript Developer , who will work alongside a dynamic team to build custom solutions for some of the most prestigious brands in financial services, healthcare, telecom, hospitality, and beyond. This is a high-impact role, with a ton of opportunities to develop your skills and advance your career. Apply now to learn more about this exciting opportunity.

Responsibilities

• Design, develop, and implement cloud-native microservices, REST APIs, and scalable applications

• Analyze legacy applications and define target-state architecture

• Collaborate within a Scrum team to deliver high-quality software in Agile sprints

• Conduct unit, integration, non-functional, and performance testing; automate API testing

• Participate in peer code reviews and follow best practices

• Mentor team members and proactively resolve technical issues

Requirements

• Bachelor's or Master's Degree in Computer Science

• 6+ years of experience in full-stack development with expertise in Angular, TypeScript, Node.js, Java, Spring Boot, and AWS services

• Strong knowledge of microservices architecture and cloud technologies

• Experience with agile methodologies and software quality assurance processes

• Excellent communication skills and client-facing experience

• Bonus: Familiarity with DynamoDB, PostgreSQL, or DB2

We offer

• Medical, Dental and Vision Insurance (Subsidized)

• Health Savings Account

• Flexible Spending Accounts (Healthcare, Dependent Care, Commuter)

• Short-Term and Long-Term Disability (Company Provided)

• Life and AD&D Insurance (Company Provided)

• Employee Assistance Program

• Unlimited access to LinkedIn learning solutions

• Matched 401(k) Retirement Savings Plan

• Paid Time Off

• Legal Plan and Identity Theft Protection

• Accident Insurance

• Employee Discounts

• Pet Insurance

• Employee Stock Purchase Program

EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our clients, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.Engineer the Future with a Career at EPAM (

EPAM Systems, Inc. is an equal opportunity employer. We recognize the value of diversity and inclusion in creating success for our customers, business partners, shareholders, employees and communities. We are committed to recruiting, hiring, developing and promoting employees without discrimination. As a global employer, this commitment includes complying with all laws in the countries in which we operate. Nevertheless, we believe equal employment practices should not be limited to what the law requires. Equal opportunity and inclusion are essential to motivate, empower and recognize the best in everyone.

At EPAM, employment actions are based on individual qualifications, without regard to race, color, religion, creed, gender, pregnancy status, sexual orientation, gender identity, gender expression, marital or familial status, national origin, ancestry, genetics, age, disability status, veteran status, citizenship status when otherwise legally able to work, or any other characteristic protected by law.

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris Technologies is the Trusted Disruptor in the defense industry. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

L3Harris Engineering Career Fair – Camden, NJ

Date : Tuesday October 14th, 2025

Time : 2:00 pm - 6:00 pm EST

Location : Sheraton Valley Forge King of Prussia, 480 North Gulph Road, King of Prussia, PA, 19406

L3Harris Surface & C5 Systems - Camden is a worldwide leader in the engineering, development, manufacture and integration of high assurance encryption systems for defense and governmental applications. The company’s encryption solutions can be found in a wide range of demanding military environments around the world. Join our dynamic team!

Qualified engineering & program management applicants must be US citizens and possess active government issued security clearance. Applicants without an active government issued security clearance will not be eligible for hire.

We will be interviewing and hiring for the following positions:

• Systems Engineering
• Systems Design Architect
• Software Engineering
• Project Engineering
• Electrical Design Engineering
• PCB Design
• FPGA/VHDL Electrical Engineering
• Quality Engineering
• Program Management (Cyber Program Manager)

Click 'APPLY NOW' to confirm your attendance.

In compliance with pay transparency requirements, the salary range for this role is $91,000 - $178,500. This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location. L3Harris also offers a variety of benefits, including relocation stipend, 401(k), EAP, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements.

#LI-IK1

L3Harris Technologies is proud to be an Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law.

Please be aware many of our positions require the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information.

By submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions.

L3Harris Technologies is an E-Verify Employer. Please click here for the E-Verify Poster in English or Spanish. For information regarding your Right To Work, please click here for English or Spanish.

Job DescriptionJob DescriptionAbout Epirus

Epirus is a high-growth technology company developing software-defined high-power microwave (HPM) systems with devastating counter-electronics effects on modern drone threats. The Epirus Leonidas HPM family of products, empowered by innovations in AI and microelectronics, is human-safe and cost-effective. Distinguishing itself from lasers, Leonidas excels against drone swarms while also bending the cost curve back in DoD's favor - taking drone defeat costs from millions of dollars per drone to pennies on the dollar.

Job Summary: This is an exciting role in a growing company. We are looking for interns to join us on a 10-week program. This will be a hands on and in-person position.

Basic Qualifications:

• Pursuing a Bachelors degree in Computer Science, Software Engineering, Computer Engineering or any related field

• Rising senior or beyond at time of and have a graduation date between 12/2026 - 12/2027. All applicants should be returning to school at the end of their to continue their academic studies.

• Prior , collegiate project team, or laboratory experience

• Proficiency in programming such as Python or C++

• U.S. Person status is required as this position needs to access export-controlled data

ITAR REQUIREMENTS:

• To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. , lawful permanent of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.  

People are the most important part of Epirus – and always come first. We don't believe in the word impossible and are always asking "why not" as work to usher in a new paradigm of power efficiency. Our fast-growing team is agile, creative, and innovative. We support a culture of constant learning and sense of belonging among our team members and know that mentorship matters. We embrace , equity and in the workplace and beyond. To deliver on our mission, we are always looking for problem solvers, changemakers and innovators to join our fast-growing team.

As required by the Equal Pay Transparency Act, Epirus provides a reasonable range of minimum compensation for roles that may be hired. Actual compensation is influenced by a wide array of factors including but not limited to skill set, level of experience, and specific office location. For the state of California only, the range of starting pay for this role is: $36—$38 USD

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris Technologies is the Trusted Disruptor in the defense industry. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. L3Harris Engineering Career Fair – Camden, NJ Date : Tuesday October 14th, 2025 Time : 2:00 pm - 6:00 pm EST Location : Sheraton Valley Forge King of Prussia, 480 North Gulph Road, King of Prussia, PA, 19406 L3Harris Surface & C5 Systems - Camden is a worldwide leader in the engineering, development, manuf acture and integration of high assurance encryption systems for defense and governmental applications. The company’s encryption solutions can be found in a wide range of demanding military environments around the world. Join our dynamic team! Qualified engineering & program management applicants must be US citizens and possess active government issued security clearance. Applicants without an active government issued security clearance will not be eligible for hire. We will be interviewing and hiring for the following positions: Systems Engineering Systems Design Architect Software Engineering Project Engineering Electrical Design Engineering PCB Design FPGA/VHDL Electrical Engineering Quality Engineering Program Management (Cyber Program Manager) Click 'APPLY NOW' to confirm your attendance. In compliance with pay transparency requirements, the salary range for this role is $91,000 - $178,500. This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location. L3Harris also offers a variety of benefits, including relocation stipend, 401(k), EAP, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements. LI-IK1 L3Harris Technologies is proud to be an Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law. Please be aware many of our positions require the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information. By submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions. L3Harris Technologies is an E-Verify Employer. Please click here for the E-Verify Poster in English or Spanish . For information regarding your Right To Work, please click here for English or Spanish .

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris Technologies is the Trusted Disruptor in the defense industry. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. L3Harris Engineering Career Fair – Camden, NJ Date : Tuesday October 14th, 2025 Time : 2:00 pm - 6:00 pm EST Location : Sheraton Valley Forge King of Prussia, 480 North Gulph Road, King of Prussia, PA, 19406 L3Harris Surface & C5 Systems - Camden is a worldwide leader in the engineering, development, manuf acture and integration of high assurance encryption systems for defense and governmental applications. The company’s encryption solutions can be found in a wide range of demanding military environments around the world. Join our dynamic team! Qualified engineering & program management applicants must be US citizens and possess active government issued security clearance. Applicants without an active government issued security clearance will not be eligible for hire. We will be interviewing and hiring for the following positions: Systems Engineering Systems Design Architect Software Engineering Project Engineering Electrical Design Engineering PCB Design FPGA/VHDL Electrical Engineering Quality Engineering Program Management (Cyber Program Manager) Click 'APPLY NOW' to confirm your attendance. In compliance with pay transparency requirements, the salary range for this role is $91,000 - $178,500. This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location. L3Harris also offers a variety of benefits, including relocation stipend, 401(k), EAP, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements. LI-IK1 L3Harris Technologies is proud to be an Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law. Please be aware many of our positions require the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information. By submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions. L3Harris Technologies is an E-Verify Employer. Please click here for the E-Verify Poster in English or Spanish . For information regarding your Right To Work, please click here for English or Spanish .

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris Technologies is the Trusted Disruptor in the defense industry. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. L3Harris Engineering Career Fair – Camden, NJ Date : Tuesday October 14th, 2025 Time : 2:00 pm - 6:00 pm EST Location : Sheraton Valley Forge King of Prussia, 480 North Gulph Road, King of Prussia, PA, 19406 L3Harris Surface & C5 Systems - Camden is a worldwide leader in the engineering, development, manuf acture and integration of high assurance encryption systems for defense and governmental applications. The company’s encryption solutions can be found in a wide range of demanding military environments around the world. Join our dynamic team! Qualified engineering & program management applicants must be US citizens and possess active government issued security clearance. Applicants without an active government issued security clearance will not be eligible for hire. We will be interviewing and hiring for the following positions: Systems Engineering Systems Design Architect Software Engineering Project Engineering Electrical Design Engineering PCB Design FPGA/VHDL Electrical Engineering Quality Engineering Program Management (Cyber Program Manager) Click 'APPLY NOW' to confirm your attendance. In compliance with pay transparency requirements, the salary range for this role is $91,000 - $178,500. This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location. L3Harris also offers a variety of benefits, including relocation stipend, 401(k), EAP, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements. LI-IK1 L3Harris Technologies is proud to be an Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law. Please be aware many of our positions require the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information. By submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions. L3Harris Technologies is an E-Verify Employer. Please click here for the E-Verify Poster in English or Spanish . For information regarding your Right To Work, please click here for English or Spanish .

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris Technologies is the Trusted Disruptor in the defense industry. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. L3Harris Engineering Career Fair – Camden, NJ Date : Tuesday October 14th, 2025 Time : 2:00 pm - 6:00 pm EST Location : Sheraton Valley Forge King of Prussia, 480 North Gulph Road, King of Prussia, PA, 19406 L3Harris Surface & C5 Systems - Camden is a worldwide leader in the engineering, development, manuf acture and integration of high assurance encryption systems for defense and governmental applications. The company’s encryption solutions can be found in a wide range of demanding military environments around the world. Join our dynamic team! Qualified engineering & program management applicants must be US citizens and possess active government issued security clearance. Applicants without an active government issued security clearance will not be eligible for hire. We will be interviewing and hiring for the following positions: Systems Engineering Systems Design Architect Software Engineering Project Engineering Electrical Design Engineering PCB Design FPGA/VHDL Electrical Engineering Quality Engineering Program Management (Cyber Program Manager) Click 'APPLY NOW' to confirm your attendance. In compliance with pay transparency requirements, the salary range for this role is $91,000 - $178,500. This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location. L3Harris also offers a variety of benefits, including relocation stipend, 401(k), EAP, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements. LI-IK1 L3Harris Technologies is proud to be an Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law. Please be aware many of our positions require the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information. By submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions. L3Harris Technologies is an E-Verify Employer. Please click here for the E-Verify Poster in English or Spanish . For information regarding your Right To Work, please click here for English or Spanish .