Oak Tree Software
Lead Java Developer
Skills
2 months ago
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Important information
Contract type:
Permanent
Location:
Chicago, IL, USA
Work mode:
Onsite
Published on:
13 August 2026
What they need
Hiring: Lead Java Developer
Location: Chicago, IL (Onsite)
Only native peoples
Employment Type: Full-Time
Experience : 8+ years
Our client is building a world-class digital platform powering enterprise applications across mobile, web, cloud, and distributed computing environments. They are looking for an experienced Lead Java Developer to join their growing engineering team.
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.
- Mentors junior developers.
- 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.
- Employee is also responsible for performing other job duties as assigned by management from time to time.
Qualifications
- 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).
Required Skills
- 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.
Preferred Skills
- Close cooperation with a customer.
- Challenging tasks.
- Competence development.
- Ability to influence project technologies.
- Team of professionals.
- Dynamic environment with low level of bureaucracy.
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