Software Developer - Full Stack

KellyMitchell Group; Town of Brookfield (WI); On-site; USD 73,000 - 106,000; Full time

Benefits offered by this job

Medical, Dental, & Vision Insurance  —

Employee-Owned Profit Sharing (ESOP)

401K offered

Job summary

KellyMitchell is seeking a Software Developer - Full Stack to design, build, test, and maintain modern applications in Brookfield, Wisconsin. The role focuses on frontend, backend, and AI-powered services, with an emphasis on secure, scalable software and collaboration with product teams.

Ideal candidates will have hands-on experience with React, TypeScript, Java/Spring Boot, Python, and cloud-native architectures.

Qualifications

• Strong full-stack development experience with React, TS, and modern JS.
• Experience with Java, Spring Boot, REST APIs, and microservices.
• Python development including API/service work.
• Relational databases and SQL development.
• Proficient in Agile software delivery.
• CI/CD pipelines and DevOps practices.
• Knowledge of security/auth frameworks.
• Ability to troubleshoot and support enterprise apps.
• Excellent communication and collaboration.

Responsibilities

• Design, develop, test, and maintain full-stack apps using React, Java/Spring Boot, Python.
• Build scalable, secure APIs and microservices per enterprise standards.
• Develop AI-powered workflows and automation solutions.
• Contribute through the full SDLC from requirements to deployment.
• Collaborate with Agile teams to deliver high-quality code.
• Support CI/CD pipelines and deployment automation.
• Migrate legacy apps to cloud-native architectures.
• Leverage AI-assisted tools to improve development efficiency.
• Troubleshoot issues ensuring performance and reliability.
• Create technical docs and configure applications.
• Monitor and optimize for security, performance, scalability.
• Work cross-functionally with product, infra, business.

Skills

Full-stack

React

TypeScript

Java/Spring Boot

Python

REST APIs

Microservices

SQL

Agile

CI/CD

DevOps

Security

Communication

Tools

Docker

Kubernetes

Jenkins

GitLab

Rancher

Job description

Job Summary

Our client is seeking a Software Developer - Full Stack to support the design, development, testing, and maintenance of modern software applications. This role will be responsible for building scalable full-stack solutions across frontend, backend, and AI-powered services while collaborating closely with product teams and stakeholders. The ideal candidate is a hands-on engineer with experience in modern web technologies, microservices, cloud-native development, and AI-assisted development practices. This person will play a key role in delivering secure, high-performing applications while contributing to modernization and automation initiatives.

Contract Details

Duration: 10-week contract Location: Brookfield, WI

Core Responsibilities

• Design, develop, test, and maintain full-stack applications utilizing React, Java/Spring Boot, Python, and backend services
• Build and enhance scalable, secure APIs and microservices aligned with enterprise architecture standards
• Develop AI-powered workflows and intelligent automation solutions using modern AI frameworks
• Participate throughout the software development lifecycle from requirements gathering through deployment and support
• Collaborate with Agile teams to deliver high-quality code and continuously improve engineering practices
• Support CI/CD pipelines, DevOps initiatives, and deployment automation efforts
• Lead modernization efforts by migrating legacy applications to cloud-native architectures
• Utilize AI-assisted development tools to improve development efficiency and code quality
• Troubleshoot and resolve application issues while supporting system performance and reliability
• Develop technical documentation and maintain application configurations
• Monitor, tune, and optimize applications to meet security, performance, and scalability requirements
• Work cross-functionally with product, infrastructure, and business stakeholders to deliver business objectives

Required Skills/Experience (Must-Haves)

• Strong full-stack software development experience
• Hands-on experience with React, TypeScript, and modern JavaScript frameworks
• Experience developing applications using Java, Spring Boot, REST APIs, and microservices architectures
• Python development experience, including API and service development
• Experience working with relational databases and SQL development
• Strong understanding of Agile software delivery methodologies
• Experience with CI/CD pipelines and DevOps practices
• Knowledge of application security, authentication, and authorization frameworks
• Ability to troubleshoot, optimize, and support enterprise applications
• Excellent communication and collaboration skills

Preferred Skills/Experience (Nice-to-Haves)

• React 19+, TypeScript, React Router, and Tailwind CSS
• Java 21 and Spring Boot 3.x
• FastAPI and asynchronous Python development
• PostgreSQL development and performance tuning
• Experience with LangChain, LangGraph, LLMs, and AI-powered application development
• Docker and Kubernetes experience
• Jenkins, GitLab, Rancher, and related DevOps tools
• Experience with IAM, SSO, OAuth2, JWT, Active Directory, and enterprise security frameworks
• Knowledge of workflow orchestration, state machines, and automation platforms
• Experience leveraging GitHub Copilot, Claude, or similar AI-assisted development tools

Key Competencies & Behaviors

• Self-motivated and accountable
• Strong analytical and problem-solving abilities
• Collaborative team player with excellent communication skills
• Ability to manage multiple priorities in a fast-paced environment
• Quality-focused with strong attention to detail
• Passion for learning emerging technologies and development practices
• Commitment to delivering secure, scalable, and reliable software solutions

Work Environment

• Location: Brookfield, WI
• Work Model: Hybrid

Compensation & Benefits

Pay Range: The approximate pay range for this position is between $53.00 and $77.00. Please note that the pay range provided is a good faith estimate. Final compensation may vary based on factors including but not limited to background, knowledge, skills, and location. We comply with local wage minimums.

• Medical, Dental, & Vision Insurance Plans
• Employee-Owned Profit Sharing (ESOP)
• 401K offered

About KellyMitchell

At KellyMitchell, our culture is world class. We're movers and shakers! We don't mind a bit of friendly competition, and we reward hard work with unlimited potential for growth. This is an exciting opportunity to join a company known for innovative solutions and unsurpassed customer service. We're passionate about helping companies solve their biggest IT staffing & project solutions challenges. As an employee-owned, women-led organization serving Fortune 500 companies nationwide, we deliver expert service at a moment's notice.