Senior Java Engineer – EAGLE Platform (W2) Only

I-Giants; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

I-Giants is seeking a Senior Java Engineer to support the EAGLE platform, including documentation, reconstruction, troubleshooting, and knowledge transfer for a custom data-processing system.

The platform processes live GPS telemetry data using Java/Spring APIs, Elasticsearch/Kibana, Vue.js, Leaflet, Windows .NET, and GitLab CI/CD; remote work available.

Qualifications

• 10+ years of software engineering experience.
• Strong hands-on expertise in Java and Spring Framework.
• Deep production experience with Elasticsearch and Kibana.
• Experience analyzing, debugging, and documenting complex/legacy applications.
• Strong technical documentation and communication skills.

Responsibilities

• Analyze and document complex Java/Spring applications, architecture, dependencies, and workflows.
• Reverse-engineer and document Elasticsearch data models, schemas, indexes, and queries.
• Reconstruct and troubleshoot local and staging development environments.
• Create architecture documentation, API documentation, deployment guides, and technical runbooks.
• Analyze and troubleshoot legacy multi-tier applications.
• Support GitLab repositories and CI/CD pipelines.
• Conduct knowledge transfer and mentor the client's engineering team for long-term platform ownership.

Skills

Java

Spring

Elasticsearch

Kibana

Legacy apps

Documentation

Communication

Mentoring

CI/CD

GitLab

Tools

GitLab

Job description

Title: Senior Java Engineer -- EAGLE Platform

Location: Remote
Duration: September 2026 -- March 2027
Hours: 40 hours/week

Job Summary

We are looking for a Senior Java Engineer to support the documentation, reconstruction, troubleshooting, and knowledge transfer of a custom data-processing platform called EAGLE.

The platform processes live GPS telemetry data and uses Java/Spring APIs, Elasticsearch/Kibana, Vue.js, Leaflet, Windows .NET, and GitLab CI/CD.

Key Responsibilities

• Analyze and document complex Java/Spring applications, architecture, dependencies, and workflows.
• Reverse-engineer and document Elasticsearch data models, schemas, indexes, and queries.
• Reconstruct and troubleshoot local and staging development environments.
• Create architecture documentation, API documentation, deployment guides, and technical runbooks.
• Analyze and troubleshoot legacy multi-tier applications.
• Support GitLab repositories and CI/CD pipelines.
• Conduct knowledge transfer and mentor the client's engineering team for long-term platform ownership.

Required Skills

• 10+ years of software engineering experience .
• Strong hands-on expertise in Java and Spring Framework.
• Deep production experience with Elasticsearch and Kibana.
• Experience analyzing, debugging, and documenting complex/legacy applications.
• Strong technical documentation and communication skills.

Preferred Skills

• C# / Windows .NET
• Vue.js / JavaScript
• Leaflet or geospatial applications
• GitLab and CI/CD
• REST APIs and distributed/multi-tier applications
• Experience with system reconstruction and knowledge transfer