Eliassen Group · 7 hours ago
Senior Java Backend Engineer
Greenwood Village, CO
Contract
Hybrid
Senior Level
$40/hr - $50/hr
5+ years expEliassen Group is seeking a Senior Java Backend Engineer to design and deliver APIs and services using Java 17 and Spring Boot. The role involves building REST and GraphQL interfaces, integrating with databases, and implementing Kafka-driven workflows while collaborating with various stakeholders.
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Responsibilities
Analyze existing Java backend services to understand business logic and data flows
Implement APIs using Java 17 and Spring Boot within a shared backend platform
Design and build GraphQL APIs aligned with frontend requirements
Develop and maintain RESTful APIs
Work with PostgreSQL and Apache Cassandra data stores
Support data migration and legacy system coexistence strategies
Implement event-driven workflows using Kafka
Use Redis for caching and performance optimization
Write unit and integration tests to ensure production-ready code
Follow architectural patterns, coding standards, and review processes
Collaborate with the Backend Architect, frontend, QA, and DevOps teams
Qualification
Required
5+ years of backend development experience
Strong understanding of microservices or modular backend architecture
Expertise in Java 17, Spring Boot, and Spring Framework
Hands-on experience designing GraphQL APIs
Experience developing RESTful APIs
Strong experience with PostgreSQL
Working knowledge of Apache Cassandra
Experience with Kafka-based event-driven systems
Experience using Redis
Strong communication and collaboration skills
Preferred
Docker-based application development
Maven builds and dependency management
AWS experience, especially S3
Strong unit and integration testing experience
Kubernetes fundamentals
Splunk or similar logging and monitoring tools
Experience with legacy system migration or modernization
Benefits
Medical
Dental
Vision benefits
401k with company matching
Life insurance
Medical (choice of 3 plans)
Dental
Vision
Pre-tax accounts
Other voluntary benefits including life and disability insurance
401(k) with match
Sick time if required by law in the worked-in state/locality
Company
Eliassen Group
Eliassen Group provides strategic consulting solutions for business, clinical, and IT sector.
1001-5000 employees
H1B Sponsorship
Eliassen Group has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (56)
2024 (56)
2023 (42)
2022 (48)
2021 (50)
2020 (61)
Funding
Current Stage
Late StageTotal Funding
unknown2018-11-05Acquired
Leadership Team
Delores Lenzy-Jones
CFO Partner
Jason Kline
SVP, and Head of Agile Practice
Recent News
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