Lead Full Stack Developer

Karsun Solutions, LLC; Illinois; On-site; USD 155,000 - 165,000; Full time

Job summary

Karsun Solutions, LLC is seeking a Lead Full Stack Developer in Illinois to lead a team of developers and engineers. The role requires hands-on involvement in the full development lifecycle and strong expertise in modern web technologies, AI tools, and AWS.

Ideal candidates will have over a decade of full-lifecycle application development experience, a Bachelor's degree in Computer Science, and the ability to mentor junior developers. The position offers a competitive salary range of $155,000 to $165,000.

Qualifications

• 10+ years of full-lifecycle application development experience.
• 5+ years of experience using Agile and DevSecOps.
• Experience with cloud native solutions.

Responsibilities

• Lead an agile team of developers and engineers.
• Participate in all stages of the development lifecycle.
• Provide mentorship and technical direction.

Skills

JavaScript (React.js, Node.js)

Agile methodologies

DevSecOps practices

AWS services

Database queries (MySQL)

AI tools usage

Education

Bachelor's degree in Computer Science or related field

Tools

JIRA

AWS Lambda

Kafka

Job description

Summary

The Lead Full Stack Developer will lead a small team (6-8 FTEs) of full stack developers and test automation engineers. They will collaborate with a Business Analyst and Product Lead to plan and execute agile development.

What You'll Be Doing

• Lead an agile team of developers and test automation engineers and grow them into a high-performance team.
• Hands‑on role with extensive involvement in the full development lifecycle, including designing, developing, implementing, testing, maintenance and enhancement of products.
• Hands on experience in leveraging AI tools and technologies during development lifecycle to enhance productivity and efficiency.
• Accountable for the quality of the product delivered and team performance.
• Provide technical direction and mentor teams of resources in all aspects of technical delivery incorporating efficient workflows, frameworks, templates, design and code best practices to produce reusable and maintainable code.
• Implement the best practices of Agile and DevSecOps to deliver quality products predictably and consistently.
• Lead the evaluation of functional/business and technical requirements and identify gaps/risks.
• Review proposed new feature development to validate feasibility and estimate the development work.
• Serve as the technical and technology expert crafting the detailed application design with a focus on standards, performance, flexibility, scalability and security, as well as supporting the implementation of the solution.
• Provide validation of proposed technical architectures and solutions.
• Monitor and analyze product performance in production, while looking for ways to optimize and scale existing solutions.
• Evaluate product and process metrics (such as velocity, productivity, quality, usability) and implement process improvements.
• Reinforce strategies, standards, and architecture are consistent and well‑integrated across different product teams by creating and engaging in communities of practice.
• Keep abreast of the emerging tools and technologies and make recommendations for relevant platform and technologies.
• Keep skills up to date through ongoing self‑directed training.
• Recommend senior management on improvement areas.
• Help application developers to adopt new platforms through documentation, training, and mentoring.

Required Qualifications

• Bachelor's degree in Computer Science or a related field.
• 10+ years of full‑lifecycle application development experience and at least 3 years of experience using the technologies listed below and AWS cloud platform.
• Experience in architecting and designing solutions and decompose them into modules for development.
• 5+ years of experience using Agile, DevSecOps, Test‑driven development and other lean methodologies.
• Must have implementation experience on using Agile project management tools (JIRA), and CI/CD pipelines for continuous integration, testing and deployment.
• Experience developing cloud native solutions according to industry best practices.
• Extensive hands‑on experience in JavaScript (React.js, Node.js, modern JavaScript libraries – ES6+), API development (GraphQL/RESTful), messaging (Kafka, AWS Kinesis or others), serverless application development using AWS Lambda, SQL and NoSQL databases, AWS services (Lambda, S3, Dynamo, Kinesis, RDS, Redshift and several others).
• Strong experience in database queries and working preferably with MySQL.
• Good understanding of AI models, agentic development and RAG concepts.
• Experience in using AI tools, e.g., Copilot, AWS Bedrock, etc. to generate code for development and automation testing.
• Experience in establishing source code management best practices (branching, repository structure, peer review process, documentation) to manage a code base as if it were open source.
• Experience in establishing release management processes and standards.
• Deep understanding of industry patterns for application architecture and integration.
• Strong written and verbal communication skills with the ability to present and comprehend technical details clearly.
• Must be able to demonstrate product demos to users and stakeholders, collect feedback and implement improvements.
• Ability to mentor junior resources, assist in technical troubleshooting, peer review the team member's work products and validate.
• The ability to obtain and maintain a U.S. government issued clearance is required.

Preferred Qualifications

• Experience in a government contracting environment with DoD and non‑DoD customers.

Things to Know

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, local, or international law.

Salary Range

The proposed salary range for this role is $155,000 to $165,000 USD.

Clearance Information

This position requires the eligibility to obtain a security clearance. The Defense Industrial Security Clearance Office (DISCO) handles and adjudicates the security clearance process.

Location

To be considered for this role, you must reside in one of the following states: CA, CO, DC, FL, GA, IL, MD, NJ, NY, NC, OH, OK, PA, SC, TX, VA, WV.

Applicants

Applicants must be authorized to work in the U.S. We may consider candidates currently in H‑1B status who are eligible for transfer.