Lead Full Stack Developer

Why Karsun?

Join Karsun Solutions to grow your career with the company transforming possibilities for the US Government.

At Karsun, collaboration drives our community. We're committed to building an environment where team members from diverse backgrounds can innovate, learn and grow with us. Here at Karsun, the only limit to your potential is the limit of your curiosity.

Join Team Karsun, and Find Your Next!

Summary

The Lead Full Stack Developer will be responsible for leading 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 Do

• Lead an agile team of developers and test automation engineers and grow them into a high-performance.

• 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 Dev Sec Ops  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, Dev Sec Ops , 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 - ESand later versions), API development (Graph

QL/RESTful), messaging (Kafka, AWS Kinesis or others), serverless application development using AWS Lambda, SQL and No

SQL 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…