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RE Partners

Principal Fullstack Engineer, Java, React, LLMs

RE Partners

Principal Full-Stack Engineer at RE Partners consulting for a large banking institution. Leading development and integrating AI technologies into applications.

Posted 5/2/2026full-timeRemote • 🇺🇸 United StatesMid-LevelSenior💰 $200,000 - $220,000 per yearWebsite

Tech Stack

Tools & technologies
AWSAzureCloudDistributed SystemsGoogle Cloud PlatformJavaReactScalaSpringSpring BootSpringBoot

About the role

Key responsibilities & impact
  • Lead the design and development of scalable backend services in Java (Spring Boot)
  • Build and optimize secure, high-performance APIs
  • Contribute to and guide React-based frontend architecture
  • Work hands-on with LLM/AI technologies (Claude or similar), integrating them into real-world applications
  • Drive best practices across code quality, architecture, and performance
  • Mentor engineers and support UI developers in delivering high-quality solutions
  • Partner with stakeholders to translate business needs into technical execution
  • Contribute to system design discussions, code reviews, and continuous improvement

Requirements

What you’ll need
  • Strong experience in Java backend development and server-side architecture
  • Solid React experience on the frontend
  • Hands-on experience with LLMs / AI tools and practical implementation
  • Experience designing and building scalable, distributed systems
  • Strong understanding of APIs, databases, and performance optimization
  • Proven ability to lead technically and mentor others
  • Nice to have: Experience with GraphDB, Scala, or complex data processing systems
  • Exposure to cloud platforms (AWS, Azure, or GCP)
  • Familiarity with CI/CD pipelines and DevOps practices

Benefits

Comp & perks
  • Bonuses
  • Commissions
  • Benefits

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
JavaSpring BootReactAPIsLLMAI technologiesGraphDBScalacloud platformsCI/CD
Soft Skills
leadershipmentoringstakeholder collaborationcode qualityarchitectureperformance optimizationcontinuous improvement