Java Software Engineer

Senior Backend Java Engineer (Long-Term Contract)

Location:

Chicago, IL (Hybrid – Downtown)

Duration: 12 – 24 Months (Long-term Contract)

Role Type:
Contract / W2 or C2C

• We are looking for a highly skilled Senior Backend Java Engineer to join a premier financial services leader in the heart of Chicago. This team is at the forefront of digital banking innovation, building the highly resilient, cloud-native microservices that power millions of customer transactions daily.
• In this role, you will work within a high-maturity Dev Ops environment, leveraging the latest in AWS cloud infrastructure and distributed systems. You will be responsible for designing and developing mission-critical APIs that support large-scale financial platforms, ensuring high availability, security, and low-latency performance.

• Backend Development: Design and develop robust, scalable microservices using Java 17/21 and the Spring Boot ecosystem.
• Cloud Architecture: Build and deploy services natively within AWS (Lambda, EC2, ECS, S3), utilizing Infrastructure as Code (Terraform) and automated CI/CD pipelines.
• API Design: Create and maintain high-throughput RESTful APIs and event-driven architectures using Kafka for real-time data processing.
• Data Persistence: Optimize data access layers using both Relational (Postgre
  
  SQL, Oracle) and No
  
  SQL (Cassandra, Mongo
  
  DB) databases.
• Financial Integrity: Ensure all code meets the rigorous security and compliance standards required for top-tier financial data protection and “Security by Design.”
• Collaborative Engineering: Participate in Agile ceremonies, perform deep-dive code reviews, and mentor junior engineers on modern design patterns.

• Java Mastery: 7 years of professional software engineering experience with a deep focus on core Java and Spring Boot.
• Cloud Native: Strong experience building and scaling applications specifically within AWS environments.
• Distributed Systems: Proven track record with Microservices architecture, including service discovery, circuit breakers, and distributed tracing.
• Database
  
  Skills:
  
  High proficiency in SQL and experience handling large-scale data sets with No
  
  SQL solutions.
• Testing & Quality: Dedication to TDD (Test Driven Development) and automated testing frameworks (JUnit, Mockito).
• Education: Bachelor’s or Master’s degree in Computer Science or a related technical field.

• Previous experience in Fin Tech or Banking sectors.
• Experience with Containerization (Docker & Kubernetes/EKS).
• Familiarity with Snowflake or other modern data warehousing solutions.