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Greymatter Innovationz

Java AWS Developer - Fintech Domain

On site

Chicago, United states

Freelance

09-12-2025

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Skills

Communication Java SQL Docker Kubernetes Monitoring Jenkins Test Architecture Application Architecture Programming Databases Azure AWS Junit Spring PL/SQL GCP Spring Boot Maven OpenShift API Management Kafka PostGres Microservices

Job Specifications

Greymatter Innovationz helps you stay digitally relevant across domains, technologies, and skillsets, every day.

We are looking for:

Java AWS - Senior Developer with strong coding skills

Work location- Riverwoods, IL

Duration: Contract Or Fulltime

Onsite- 5 days/ wk

Candidate must be heavy on backend Java API and heavy on AWS (Lamba or S3 or any other AWS tool)

Must Have Qualifications:

• Experienced with Java development using Spring boot framework

• Strong knowledge of J2EE frameworks, Object Oriented Programming and microservices application architecture

• Strong knowledge of core java with understanding of concepts like Java runtime, interservice communication, Logging/Monitoring, Authorization, Bounded-Context based modeling, Exception Handling, JSON parsing

• Experienced with building and deploying applications in servers like Tomcat and WebSphere along with modern cloud tech stacks like Kubernetes and OCP.

• Hands on experience with RDBMS and PL/SQL technologies with exposure to both on prem (Oracle, Postgres) and cloud managed services databases like RDS and CloudSQL

• Strong experience in TDD methodology , writing and executing automated Junit Test cases

• Experienced with Streaming/Queuing platforms – Kafka/RabbitMQ

• Handson with Maven and Ant builds

• Experienced with DevSecOps pipelines and tools like Jenkins or Harness

• Knowledge of Payment domain with experience in wallet and digital payments.

• Spring Integration, Spring State machine and Spring batch frameworks

• Handon knowledge in AWS, GCP or Azure cloud

• Experience on cloud native technologies like S3, SQS, Lambda functions etc

• Knowledge of NO SQL databases

• Strong knowledge and hands-on skills in Docker, Kubernetes, OpenShift, RHEL, Helm

• Strong analytical and communication skills

• Knowledge of API Management and API Integration design patterns

• Exposure to Performance test tools like Jmeter or Gatling

• Exposure to chaos experiments and Chaos tools like Gremlin, Litmus etc.

At Greymatter Innovationz,

We offer:

Motivating Work Environment.

Excellent Work Culture.

Help you to upgrade yourself to the next level.

And More!!!

About the Company

Greymatter Inovationz was born in this digital era; It is the innovators and engineers who are experts in building the digital future. It help the clients to navigate the evolving technology paradigm. It's nimble, yet scale to deliver complex engagements. Greymatter Innovationz is founded by industry experts who have deep consulting and services experiences in each of the areas it operates in. Its leadership have established experience in consulting and staffing businesses in various markets around the globe. Greymatter... Know more