Senior Java Backend Engineer — Remote, Scalable Systems

Eliassen Group; Chicago (IL); On-site; USD 140,000 - 160,000; Full time

Job summary

Eliassen Group is seeking a Senior Software Engineer for backend Java development to design, build, and maintain scalable, data-intensive systems powering core products. This is a full-time remote role.

You will participate in all phases of product development including design, implementation, testing, deployment, and ongoing support. This is a full-time, permanent opportunity with a competitive salary and comprehensive benefits; W2 employment is required.

Qualifications

• 5–10+ years of backend software experience with Java.
• Strong knowledge of multi-threading, concurrency, and distributed systems design.
• Experience with large-scale data systems and data-intensive applications.
• Proficiency in SQL and relational databases, including performance tuning.

Responsibilities

• Own the full lifecycle of features from design through deployment and support.
• Design and build scalable, high-performance backend systems.
• Improve code architecture with a focus on performance, scalability, and maintainability.
• Write and review technical design documentation.
• Work with large, complex datasets and ensure data accuracy at scale.
• Collaborate closely with engineering teams to solve complex system challenges.
• Conduct thoughtful, high-quality code reviews.
• Mentor and support other engineers on the team.
• Contribute to improving engineering standards and team velocity.

Skills

Java

Backend development

Distributed systems

SQL

Performance optimization

Job description

Eliassen Group is seeking a Senior Software Engineer for backend Java development to design, build, and maintain scalable, data-intensive systems powering core products. This is a full-time remote role.

You will participate in all phases of product development including design, implementation, testing, deployment, and ongoing support. This is a full-time, permanent opportunity with a competitive salary and comprehensive benefits; W2 employment is required.