Java Developer

Compunnel, Inc.; Chicago (IL); On-site; USD 120,000 - 155,000; Full time

Job summary

Compunnel, Inc. is seeking a Java Developer to design and build scalable, UX-driven applications and distributed systems in Chicago.

You will work with REST APIs, microservices, and modern data architectures while leveraging AWS services and event-driven messaging. The ideal candidate brings 8-10 years of software engineering experience, strong Java/Python and Angular skills, and hands-on experience with Spark, Kubernetes, and CI/CD pipelines.

Qualifications

• 8-10 years of strong software engineering experience in scalable UX driven apps and distributed systems.
• Proven experience designing and building scalable REST APIs, microservices, Kubernetes and distributed systems.
• Experience in Data Warehousing, Data Lakes, Delta Lake architecture and big data ecosystem.
• Hands-on expertise in Python, Java, Angular and OO design patterns with functional programming.
• Expertise in PySpark and Apache Spark for high-performance distributed data processing.
• Solid depth in micro-services with Kubernetes containerization for eventing/serving.
• Experience with AWS services (S3, Lambda, API Gateway, EventBridge) and cloud-native data platforms.
• Experience with messaging/event-driven tech (Kafka, SNS, SQS) and databases (PostgreSQL, SQL Server, Aurora, DynamoDB, MongoDB, Redis).
• IaC tools (Terraform, Ansible) and CI/CD/DevOps practices (Jenkins, GitHub/GitLab, Bitbucket, GoCD).
• Knowledge of testing strategies (unit/integration/regression) and strong problem-solving ability.
• Exposure to Generative AI technologies (LLMs, RAG, Agentic AI).

Skills

Software engineering

REST APIs

Microservices

Kubernetes

Distributed systems

Python

Java

Angular

OO design patterns

Functional programming

Data processing

Greedy AI exposure

Education

B.E./B.Tech/M.Tech/MCA in CS/IT or related field

Tools

Kubernetes

Terraform

Ansible

Jenkins

GitHub/GitLab/Bitbucket/GoCD

Job description

Job Title: Java Developer

Required Qualifications

• B.E./B.Tech/M.Tech/MCA in Computer Science, Information Technology, or a related field.
• 8-10 years of strong software engineering experience, with deep expertise in building scalable UX driven applications and distributed systems architecture.
• Proven experience designing and building scalable REST APIs, microservices, Kubernetes, and distributed systems.
• Experience in Data Warehousing, Data Lakes, Delta Lake architecture, and modern big data ecosystem designs.
• Strong hands‑on expertise in Python, Java, Angular and well‑versed with object‑oriented design patterns and functional programming.
• Expertise in PySpark and Apache Spark, with proven experience building high‑performance distributed data processing solutions.
• Solid depth in micro‑services development with Kubernetes containerization for eventing and serving.
• Extensive experience with AWS services such as S3, Lambda, API Gateway, and EventBridge for building scalable, reliable, cloud‑native data platforms.
• Strong experience with messaging and event‑driven technologies such as Kafka, SNS, and SQS, along with solid expertise in relational and NoSQL databases including PostgreSQL, SQL Server, Aurora, DynamoDB, MongoDB, and Redis.
• Hands‑on experience with Infrastructure as Code (IaC) tools such as Terraform and Ansible.
• Strong understanding of CI/CD and DevOps practices using tools such as Jenkins, GitHub/GitLab, Bitbucket, GoCD, and automated deployment pipelines.
• Experience implementing robust testing strategies, including unit, integration, and regression testing, while adhering to engineering best practices.
• Strong critical thinking and analytical skills, with the ability to diagnose, troubleshoot, and solve complex technical problems effectively.
• Exposure to Generative AI technologies, including LLMs, RAG architectures, and Agentic AI systems.