Java Developer

CYNET SYSTEMS INC.

Mason, United States of America

yesterday

Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Working hours

Regular working hours

Languages

English

Experience level

Senior

Compensation

$ 121K

Job location

Mason, United States of America

Tech stack

Java

API

Amazon Web Services (AWS)

Apache HTTP Server

Business Logic

Automation of Tests

Code Review

Databases

Continuous Integration

Information Engineering

Data Security

Database Design

Gradle

Maven

MongoDB

MySQL

OAuth

OpenID

Oracle Applications

Open Web Application Security

JSON Web Token

Data Streaming

Data Logging

Data Ingestion

Grafana

Spring-boot

Software Troubleshooting

GIT

Cloudformation

Kubernetes

Amazon Web Services (AWS)

Kafka

Cloudwatch

REST

Splunk

Data Pipelines

Api Management

Docker

Microservices

Job description

Lead the design and development of microservices and REST APIs using Java and Spring Boot.
Define API contracts, implement business logic, validations, standardized error handling, and logging.
Apply resiliency patterns (timeouts, retries, circuit breakers, idempotency) and drive performance improvements.
Conduct code reviews, enforce engineering standards, and mentor team members.
Build and operate services on AWS, following security and operational standards.
Support CI/CD, release activities, and production troubleshooting.
Design and optimize data access with Oracle, Aurora MySQL, and MongoDB.
Support ELT pipelines using AWS Glue for ingestion, transformation, and standardization.
Design and work with Apache Iceberg tables.
Collaborate with data engineering and analytics teams.
Integrate services with existing ML inference endpoints.

Requirements

8+ years of experience in Java & Spring Boot Microservices / REST APIs.
6+ years of experience in AWS Core Services with Security Fundamentals.
6+ years of experience in AWS Glue & ELT / Data Ingestion Pipelines.
6+ years of experience in Apache Iceberg (Lakehouse Tables).
6+ years of experience in Database Design & Optimization - Oracle and Aurora MySQL, plus working knowledge of MongoDB., * Athena optimization experience.
Kafka/event streaming.
Docker/Kubernetes (EKS) or ECS.
Observability tools: CloudWatch, Splunk/ELK, PrometheGrafana, OpenTelemetry.
Python for scripting/automation.
Security: OAuth2/OIDC, JWT, OWASP.
Infrastructure as Code: Terraform/CloudFormation.

Qualification and Education:

Strong experience in Java and Spring Boot building production APIs/microservices.
Strong AWS experience including S3 and security fundamentals.
Hands-on experience with AWS Glue and ELT/data ingestion patterns.
Working knowledge of Apache Iceberg tables.
Strong database experience with Oracle/Aurora MySQL, plus knowledge of MongoDB.
Experience with CI/CD, Git, Maven/Gradle, and automated testing.
Strong troubleshooting and communication skills.