Senior Java Developer

Eleks; Chicago, Northern (IL, KY); Hybrid; USD 120,000 - 180,000; Full time

Job summary

ELEKS is seeking an experienced Senior Java Engineer to join a world-class digital platform project in Chicago. You will design and implement enterprise Java applications using Java 17+ and Spring, building scalable backend systems and RESTful APIs for a diverse set of services.

Office attendance in downtown Chicago is required. The role emphasizes CI/CD, DevOps practices, and collaboration with cross-functional teams to deliver high-availability solutions.

Qualifications

• Bachelor’s degree in Computer Science, Electrical Engineering, or related field.
• 8+ years designing and developing enterprise Java applications (5+ years with Master’s).
• Strong expertise in Java 17+ and backend development.
• Experience with relational and NoSQL databases.
• Hands-on with Spring Boot and Spring ecosystem.
• Knowledge of MVC, Microservices, and Event-driven Architecture.
• Experience designing RESTful APIs and API tools (OpenAPI/Swagger, Postman).
• Strong AWS knowledge (IAM, API Gateway, Aurora, DynamoDB, Kinesis, S3, CloudWatch, Lambda, Fargate, SQS, SNS, KMS).
• Experience with messaging/event streaming (Kinesis, SQS, SNS, Kafka, RabbitMQ, ActiveMQ).
• CI/CD pipelines and DevOps (Jenkins or similar).

Responsibilities

• Lead development groups; provide technical leadership.
• Tackle complex system problems and support calls.
• Work independently on critical infrastructure components.
• Drive app development delivering business-valued features.
• Maintain high software quality standards within the team.
• Encourage growth and improvements within the team.
• Collaborate with end users to guide development, debugging, testing.
• Lead cross-functional teams on new functionality.
• Perform integration and customer acceptance testing.
• Contribute to tech evaluations and recommendations.
• Promote standard practices and reuse enterprise-wide.

Skills

Java 17+

Backend development

Spring Boot

REST APIs

Microservices

MVC

Event-driven

API design

OpenAPI/Swagger

Postman

AWS

Kinesis/SQS/SNS

Kafka

CI/CD

Jenkins

Team leadership

DevOps

Education

Bachelor's degree in CS/EE or related field

MS in CS or related field

Tools

Spring Framework

OpenAPI/Swagger

Postman

Jenkins

Job description

Our client is building a world-class digital platform that powers a broad portfolio of enterprise applications across mobile, web, cloud, and distributed computing environments. Their technology solutions are designed to improve productivity, profitability, and operational safety while supporting sustainable growth for businesses and communities worldwide. Office attendance in downtown Chicago is required.

REQUIREMENTS

• Bachelor’s degree in Computer Science, Electrical Engineering, or a related field
• 8+ years of experience designing and developing enterprise Java applications (5+ years with a Master’s degree in Computer Science or a related field)
• Strong expertise in Java 17+ and backend development
• Experience developing scalable software applications using relational and NoSQL databases
• Hands-on experience with Spring Boot and the Spring ecosystem
• Solid understanding of software architecture patterns, including MVC, Microservices, and Event-driven Architecture
• Experience designing and developing RESTful APIs
• Experience with API design and testing tools such as OpenAPI (Swagger), Postman, and Assertible
• Strong knowledge of AWS services, including IAM, API Gateway, Aurora, RDS, DynamoDB, Kinesis, S3, CloudWatch, Lambda, ALB, NLB, Fargate, SQS, SNS, and KMS
• Experience with messaging and event streaming technologies such as Amazon Kinesis, Amazon SQS, Amazon SNS, Apache Kafka, RabbitMQ, and Apache ActiveMQ
• Experience designing and maintaining CI/CD pipelines and DevOps practices using Jenkins or similar tools
• Experience delivering highly available, scalable, resilient, and fault-tolerant backend solutions
• Understanding of software architecture principles and experience contributing to technical design decisions
• Ability to work effectively under pressure and meet project deadlines
• Passion for technology and eagerness to contribute to a collaborative, team-oriented environment

RESPONSIBILITIES

• Competent to perform all programming and development assignments without close supervision; normally assigned the more complex aspects of systems work.
• Acts as team leader for development and support groups; provides programming and application/technical leadership, guidance, and assistance to other team members.
• Works directly on complex application/technical problem identification and resolution, including responding to off-shift and weekend support calls.
• Works independently on complex systems or infrastructure components that may be used by one or more applications or systems.
• Drives application development focused on delivering business-valuable features
• Maintains high standards of software quality within the team by establishing good practices and habits.
• Identifies and encourages areas for growth and improvement within the team.
• Communicates with end users and internal customers to help direct development, debugging, and testing of application software for accuracy, integrity, interoperability, and completeness.
• Leads the development of new functionality and applications on cross-functional teams
• Performs integration testing and customer acceptance testing of components that require careful planning and execution to ensure timely, quality results
• Participates in technology evaluation and recommendations.
• Applies an enterprise-wide view to solutions to support the adoption of standards and practices and promote reuse.
• The employee is also responsible for performing other job duties as assigned by management from time to time.

WHAT YOU WILL GET WITH ELEKS

• Close cooperation with a customer
• Challenging tasks
• Ability to influence project technologies
• Team of professionals
• Dynamic environment with low level of bureaucracy

ELEKS is a custom software development company. We deliver value to our clients, thanks to our expertise and experience gained from working as a software innovation partner since 1991.

Our 2000+ professionals located in the Delivery Centers across Eastern Europe and sales offices in Europe and North America, provide our clients with a full range of software engineering services. These include product development, QA, R&D, design, technology consulting and dedicated teams.