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Role: Java/Spring Boot Developer
Position Type: Contract
Location: St. Louis


Project Overview

DDP (Digital Data Platform) is a modern event-driven architecture initiative designed to unlock and standardize business-critical data from legacy Systems of Record (SOR). The platform enables real-time, scalable, secure, and highly available data exchange across enterprise systems while supporting predictive analytics, customer engagement, and omni-channel experiences.

The platform focuses on:

Event streaming architecture
Real-time customer data access
Enterprise integration modernization
Predictive analytics enablement
API-led connectivity
High availability and resiliency
Reduced technical debt and operational costs

This role is ideal for a highly experienced backend/full-stack engineer with strong expertise in Java, Spring Boot, Kafka ecosystems, cloud-native technologies, and API-driven integrations.

Key Responsibilities
Platform & Integration Development
Design, develop, and support complex event-driven integration solutions.
Build scalable microservices and REST/GraphQL APIs using Spring Boot.
Develop API-led connectivity solutions including:
Integrations
Interfaces
Proxies
Shared libraries
Business services
Event Streaming & Real-Time Processing
Develop and optimize Kafka-based event pipelines.
Implement Kafka Streams for:
Stateful stream processing
Real-time transformations
Event-driven workflows
Configure and support:
Kafka Brokers
Schema Registry
Kafka Connect
Security & performance tuning
Cloud & Infrastructure Engineering
Work with AWS cloud-native services including:
ECS/EKS
Lambda
S3
SQS/SNS
IAM
CloudWatch
API Gateway
Automate infrastructure provisioning using Terraform and GitOps principles.
Backend & Database Development
Build scalable backend APIs using Node.js and Java.
Work with:
MongoDB
Redis
SQL/RDBMS technologies
Design efficient schemas, aggregation pipelines, indexing strategies, and caching mechanisms.
Quality Engineering & DevOps
Implement CI/CD and DevSecOps best practices.
Perform unit testing using JUnit and automated testing frameworks.
Support performance testing and monitoring of APIs and distributed systems.
Troubleshoot production incidents and perform root cause analysis.
Architecture & Collaboration
Collaborate with business analysts, architects, and engineering teams.
Translate business requirements into scalable technical solutions.
Mentor junior developers and contribute to engineering standards and best practices.
Participate in Agile/Scrum ceremonies and technical planning.
Required Skills & Experience
Core Technologies
Java (7+ Years)
Expert-level Java development
OOP concepts
Design patterns
Multi-threading
JUnit testing
Spring Boot (7+ Years)
Microservices architecture
REST APIs
Spring Security
Spring Cloud
GraphQL API development and consumption
Kafka Ecosystem (5+ Years)
Confluent Kafka
Kafka Streams
Real-time event processing
Event-driven architectures
Schema Registry
Kafka Connect
Node.js & JavaScript
Async programming
Express.js / NestJS
Promises & async/await
Front-end framework exposure (React/Angular preferred)
Databases
MongoDB
Redis
SQL/RDBMS
Query optimization
Real-time data integrations
Cloud & DevOps
AWS Cloud-Native services
Terraform
Infrastructure as Code (IaC)
CI/CD pipelines
DevSecOps practices
Additional Skills
Python scripting and automation
API design standards
Load/performance testing
Agile/Scrum methodologies
Education
Bachelor’s Degree required
Preferred fields:
Computer Science
Engineering
Mathematics
Business
Experience Required
7+ years of relevant industry experience.
Reference : Java/Spring Boot Developer jobs

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Published at 27-05-2026
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