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Job Title: Principal Developer (Java/AWS)
Location: Chicago, IL – Hybrid
Duration: 3-Month Contract-to-Hire
Sponsorship: Must be able to convert to full-time without sponsorship, now or in the future
Overview
United Airlines is seeking a Principal Developer to join a high-performing engineering team focused on building and modernizing enterprise applications that support critical airline operations and customer-facing platforms. This is a hands-on technical leadership role where you will be expected to actively design, develop, and deliver scalable cloud-native solutions while influencing architecture and engineering best practices across the organization.
Key Responsibilities
- Serve as a hands-on technical leader, writing production-quality code and driving engineering excellence.
- Design, develop, and maintain scalable applications using Java 17, Spring Boot, and Microservices architecture.
- Build and enhance event-driven solutions leveraging Apache Kafka for high-volume messaging and integrations.
- Design and develop RESTful APIs and backend services supporting mission-critical business functions.
- Lead architectural discussions and provide technical guidance to development teams.
- Develop cloud-native applications and services within the AWS ecosystem.
- Utilize AWS EC2 for application hosting and compute workloads.
- Leverage AWS S3 for storage, data management, and application integration needs.
- Partner with product owners, architects, and business stakeholders to translate requirements into technical solutions.
- Drive code reviews, performance tuning, security best practices, and application reliability initiatives.
- Mentor junior and senior developers while promoting modern engineering standards and best practices.
Required Qualifications
- 10 years of software development experience with strong backend engineering expertise.
- Extensive hands-on experience with Java 17.
- Strong experience building applications with Spring Boot.
- Proven experience designing and implementing Microservices architectures.
- Strong hands-on experience with Apache Kafka and event-driven systems.
- Experience developing and deploying applications within AWS environments.
- Hands-on experience with:
- AWS EC2
- AWS S3
- Experience developing REST APIs and distributed systems.
- Strong understanding of software design patterns, scalability, performance optimization, and system integration.
- Experience working in Agile development environments.
Preferred Qualifications
- Experience with containerization technologies such as Docker and Kubernetes.
- Experience implementing CI/CD pipelines.
- Exposure to airline, transportation, logistics, or other large enterprise environments.
- Experience leading technical design and architecture initiatives across multiple teams.
Salary : $60 - $65