Lead Java Software Engineer

3Core Systems, Inc; Chicago, Northern (IL, KY); Hybrid; USD 170,000 - 210,000; Full time

Job summary

3Core Systems, Inc. seeks a Senior Software Engineering Lead to drive architecture and delivery of cloud-native applications on AWS. You will mentor engineers, own technical decisions, and collaborate with product and platform teams to deliver scalable microservices using Spring Boot, Java, and OpenSearch.

The role emphasizes leadership, DevOps practices, and performance optimization, with a focus on secure, observable, and reliable systems in a fast-paced environment in Chicago.

Qualifications

• Bachelor's degree in computer science or related field.
• 10+ years' experience in this capacity with 5+ years in a lead role.
• Provides technical leadership and delivery ownership for a team of software engineers building and operating scalable cloud-native applications on AWS.
• Drives architecture decisions, engineering best practices, and solution design across Spring Boot microservices, OpenSearch platforms, CI/CD, observability and AWS infrastructure.
• Collaborates with product, architecture, and platform teams to deliver secure, resilient, and high-performing solutions while mentoring engineers, improving development processes, and ensuring successful execution of business objectives.

Responsibilities

• Leads software engineers in delivering business-critical applications.
• Establishes technical direction and architectural standards.
• Drives AWS cloud adoption and modernization initiatives.
• Ensures solution scalability, performance, security, and reliability.
• Promotes DevOps, CI/CD, automation, and AI-assisted development practices.
• Supports incident resolution, operational excellence, and continuous improvement.

Skills

AWS

DevOps

GitHub

Java

Software Development

Education

Bachelor's Degree

Tools

Spring Boot

OpenSearch

Elasticsearch

Docker

GitHub Actions

Job description

Must Have Skills/Attributes : AWS, DevOps, GitHub, Java, Software Development.

Experience Desired :

• Java development, including modern Java versions, Spring Boot, Microservices (10+ yrs).
• AWS cloud-native applications, including ECS/Fargate, IAM, RDS, ALB, CloudWatch, and Secrets Manager (5+ yrs).
• Technical Lead or Software Engineering Lead (5+ yrs).
• Distributed Systems and Event-Driven microservices, including API integration, performance optimization (5+ yrs).
• DevOps and CI/CD practices using Docker, GitHub, observability tools (3+ yrs)
• Required Minimum Education: Bachelor's Degree.

Job Description:

Required Education/Experience:

• Bachelor's degree in computer science or related field.

Required Qualifications:

• 10+ years' experience in this capacity with 5+ years in a lead role.
• Provides technical leadership and delivery ownership for a team of software engineers building and operating scalable cloud-native applications on AWS.
• Drives architecture decisions, engineering best practices, and solution design across Spring Boot microservices, OpenSearch platforms, CI/CD, observability and AWS infrastructure.
• Collaborates with product, architecture, and platform teams to deliver secure, resilient, and high-performing solutions while mentoring engineers, improving development processes, and ensuring successful execution of business objectives.

Required Technical Skills:

• Spring Boot
• Java (latest versions)
• AWS Cloud Services (ECS/Fargate, IAM, ALB, RDS, CloudWatch, Secrets Manager)
• OpenSearch / Elasticsearch
• Observability & Monitoring

Responsibilities:

• Leads software engineers in delivering business-critical applications.
• Establishes technical direction and architectural standards.
• Drives AWS cloud adoption and modernization initiatives.
• Ensures solution scalability, performance, security, and reliability.
• Promotes DevOps, CI/CD, automation, and AI-assisted development practices.
• Supports incident resolution, operational excellence, and continuous improvement.

Skill set

Java, AWS, DevOps, GitHub, Technical Lead .