Lead Application Developer - ECommerce

at Synergy55 LLC in Schaumburg, Illinois, United States

Job Description

Begin your Composites One career today!

Position Overview:

The Lead Application Developer – Ecommerce is responsible for developing, enhancing, and supporting Composites One’s B2B Ecommerce applications and integrated systems. This role collaborates with business analysts and stakeholders to translate requirements into technical solutions, deliver full-stack development projects, and ensure high-performance applications. The ideal candidate brings deep technical expertise in web development, strong B2B Ecommerce experience, and a collaborative, solutions-focused mindset.

Key Responsibilities:

Solution Design & Architecture

• Translate functional designs and business goals into scalable technical solutions.
• Lead design efforts for complex, multi-system integrations.
• Ensure alignment with architectural standards and usability best practices.

Full-Stack Development & Technical Delivery

• Develop front-end features using HTML, CSS, JavaScript, NextJS/ReactJS.
• Implement backend logic and APIs using ExpressJS, Node.js, and similar tools.
• Design and maintain SQL/NoSQL databases.
• Integrate third-party APIs and services.
• Ensure application performance, responsiveness, and security.
• Write clean, maintainable, and well-documented code.

Agile Project & Process Management

• Lead end-to-end delivery of development projects in Agile/Scrum environments.
• Collaborate with Product Owners, Scrum Masters, and stakeholders to manage backlogs, estimate work, and deliver on timelines.
• Conduct QA, testing, and documentation to support software lifecycle needs.
• Drive process improvements for development efficiency.

Collaboration, Mentorship & Continuous Improvement

• Partner with business teams for deployment, training, and change management.
• Monitor solution performance and suggest enhancements.
• Mentor junior developers and conduct code reviews.
• Stay informed on emerging technologies and contribute to the digital roadmap.

Expected Skills and Qualifications:

• 10+ years of web development experience.
• 8+ years hands-on development in JavaScript.
• 5+ years experience in B2B Ecommerce environments.
• 5+ years experience with BigCommerce or similar platforms.
• 2+ years experience as a lead developer overseeing others.
• 3+ years experience working with offshore development teams.
• Strong skills in HTML, CSS, JavaScript (ReactJS/NextJS), Node.js, ExpressJS.
• Proficient with modern SQL and NoSQL databases.
• Deep understanding of Agile, Scrum, and tools like GitHub, Jira, and Confluence.
• Strong communication, problem-solving, and analytical abilities.
• Bachelor’s degree in Computer Science, Information Technology, or related field (or equivalent experience).
• Proficient in Microsoft Office Suite and experienced in Windows environments.

Preferred Skills and Qualifications:


Equal employment opportunity, including veterans and individuals with disabilities.

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