Senior Full-Stack Engineer — AI-Powered, Secure CI/CD Leader

Lexicon Inc; Little Rock (AR); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Medical Insurance

HSA with Employer contributions

Vision Insurance

Group and Voluntary Life Insurance

Short Term/Long Term Disability

Critical Illness Plan

Employee Assistance Program

Paid Vacation

401(k) with Employer Match

ESOP

Job summary

Lexicon Inc. is seeking a Senior Full-Stack Software Engineer to define standards for software development across a fast-moving company.

You will design, build, deploy, and support secure full-stack apps, APIs, integrations, automations, and internal tools while establishing practical engineering best practices. You will set up GitHub practices, CI/CD, and AI-assisted guardrails to ensure rapid delivery with quality and security.

Qualifications

• Six or more years of professional software development experience, including ownership of production applications.
• Strong full-stack proficiency in one or more modern ecosystems, such as TypeScript/Node.js and React, Python, C#/.NET, or Java.
• Experience designing relational database schemas, migrations, and performant queries.
• Advanced Git and GitHub experience, including repository governance, branching, pull-request workflows, code review, conflict resolution, versioning, and release management.
• Experience building web applications, REST APIs, integrations, automation tools, and secure authentication and authorization solutions.
• Hands-on experience with CI/CD, automated testing, secure coding, dependency management, monitoring, deployment, and production troubleshooting.
• Practical experience with AI-assisted development tools such as Cursor, Replit, Claude, or GitHub Copilot, and the judgment to validate generated code for accuracy, security, privacy, and maintainability.
• Demonstrated ability to mentor developers, explain technical concepts clearly, document solutions, and drive adoption of shared standards.
• Bachelor’s degree in Computer Science, Software Engineering, Information Systems, or a related field, or equivalent professional experience.

Responsibilities

• Design, build, test, deploy, and support full-stack web applications, REST APIs, integrations, automations, and internal tools, from database schema through user interface.
• Translate business requirements into technical designs that balance performance, security, maintainability, scalability, and cost.
• Own GitHub repositories and engineering standards, including branching, pull requests, releases, protected branches, required reviews, CODEOWNERS, documentation, and least-privilege access.
• Build and maintain CI/CD workflows using GitHub Actions or similar tools, including automated testing, code-quality checks, security and dependency scanning, deployment approvals, validation, and rollback.
• Create reusable application templates, components, and standards that accelerate secure and consistent delivery.
• Utilize Lexicon approved AI tools such as Cursor, Claude Code, GitHub Copilot, Microsoft Copilot, Replit, Codex, Grok, or comparable platforms for prototyping, coding, refactoring, debugging, testing, and documentation. Verify all generated output before production.
• Deploy and operate solutions on approved cloud, serverless, container, virtual-machine, or managed platforms, including configuration, secrets, monitoring, logging, health checks, and incident response.
• Lead and mentor level I developers through the software development lifecycle by conducting technical reviews to ensure adoption of best practices and giving technical guidance where needed.
• Lead technical reviews, reduce technical debt, and clearly explain risks, roadblocks, and functionality to team members and business stakeholders.

Skills

TypeScript/Node.js

React

Python

C#/.NET

Java

CI/CD

AI-assisted development

Mentoring

Education

Bachelor’s degree or equivalent

Tools

GitHub

GitHub Actions

Cursor

Claude Code

Replit

Codex

Grok

PostgreSQL

Supabase

Job description

Lexicon Inc. is seeking a Senior Full-Stack Software Engineer to define standards for software development across a fast-moving company.

You will design, build, deploy, and support secure full-stack apps, APIs, integrations, automations, and internal tools while establishing practical engineering best practices. You will set up GitHub practices, CI/CD, and AI-assisted guardrails to ensure rapid delivery with quality and security.