Sr. Backend Developer (Java & Kafka)

Georgia Tek Systems

Washington, DC
7 days ago

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Skills

AWS Lambdaunmatched
Agile Programming Methodologiesunmatched
Amazon Simple Storage Service (S3)unmatched
Amazon Web Services (AWS)unmatched
Apache Avrounmatched
Apache Kafkaunmatched
Application Programming Interface (API)unmatched
Atlassian JIRAunmatched
Automationunmatched
Best Practicesunmatched
Cloud Applicationsunmatched
Cloud Computingunmatched
Code Reviewsunmatched
Computer Scienceunmatched
Continuous Deployment/Deliveryunmatched
Continuous Integrationunmatched
Cross-Functionalunmatched
Data Managementunmatched
Data Processingunmatched
Database Designunmatched
Database Optimizationunmatched
Design Patterns Programming Methodologiesunmatched
DevOpsunmatched
Enterprise Applicationsunmatched
Enterprise Protectionunmatched
Gitunmatched
High Throughputunmatched
Identify Issuesunmatched
Information Technology & Information Systemsunmatched
Javaunmatched
Java Platform Enterprise Edition (Java EE/J2EE)unmatched
Jenkinsunmatched
Logisticsunmatched
Machine Toolunmatched
Maintain Complianceunmatched
Mentoringunmatched
Messaging Technologyunmatched
Microservicesunmatched
Microsoft Windows Azureunmatched
OAuthunmatched
PostgreSQLunmatched
Query Optimizationunmatched
REST (Representational State Transfer)unmatched
Regulatory Complianceunmatched
SQL (Structured Query Language)unmatched
Scalable System Developmentunmatched
Scrum Project Management and Software Developmentunmatched
Software Developmentunmatched
Software Engineeringunmatched
System Integration (SI)unmatched
Technical Leadershipunmatched
User Experience Design (UXD)unmatched
User Interface/Experience (UI/UX)unmatched

Description

Sr. Backend Developer (Java & Kafka)
Washington, DC
Looking for W2 basis only

Job Description
Seeking a Senior Backend Developer (Java & Kafka) for a premier client in the Washington, D.C. area to drive the development of enterprise-grade backend services powering critical logistics, scheduling, and yard management workflows. In this high-impact role, you will lead backend development efforts using Java and Spring Boot, architecting resilient, event-driven integrations with Apache Kafka and deploying cloud-native applications within an AWS environment. As a senior member of the engineering team, you will champion technical excellence, mentor junior developers, and collaborate closely with product owners and architects to deliver highly scalable, secure solutions that keep supply chains moving.
Key Responsibilities

Backend & API Development: Design, develop, and maintain performant, enterprise-grade Java and Spring Boot backend services and REST APIs supporting mission-critical operational workflows (yard, equipment, and consist management).
Event-Driven Architecture: Lead the design and implementation of Kafka-based event-driven integrations, managing topics, partitions, consumer groups, producers, and messaging workflows.
System Integration & Batch Processing: Build scalable integration patterns for internal and external systems using modern messaging, batch processing, data pipelines, and data synchronization patterns.
Database Optimization: Design and optimize PostgreSQL database models, complex queries, indexing strategies, and data access patterns for high-throughput applications.
Cloud & DevOps: Deploy and support cloud-native applications using AWS services (ECS/Fargate, Lambda, API Gateway, S3) and contribute to CI/CD automation pipelines.
Technical Leadership: Perform rigorous code reviews, mentor developers, promote engineering best practices, and ensure strict adherence to security, compliance, and observability standards.
Cross-Functional Collaboration: Partner with Product Owners, Architects, UX designers, and business stakeholders in an Agile/Scrum environment to refine requirements and troubleshoot production issues.

Qualifications

Experience: 8+ years of hands-on experience developing enterprise applications using Java, with 5+ years focused on Spring Boot, REST APIs, and microservice architectures.
Kafka Expertise: 3+ years of deep, hands-on experience building, deploying, and troubleshooting Apache Kafka solutions, including a strong grasp of event-driven and domain-driven design patterns.
Database Skills: Proven track record with PostgreSQL (or similar relational databases) database design, advanced SQL optimization, and query tuning.
AWS Cloud: Solid experience with core AWS services, including ECS/Fargate, Lambda, S3, CloudWatch, Secrets Manager, and infrastructure tooling like CloudFormation or CodePipeline.
DevOps & Tooling: Familiarity with modern CI/CD and DevOps workflows using Git, Jenkins, Bitbucket, Jira, and SonarQube.
Education: Bachelor's degree in Computer Science, Engineering, Information Systems, or a related field (or equivalent practical experience).
Bonus Points (Preferred): Prior experience in the transportation, railroad, or logistics industries; familiarity with frontend architectures like Angular; experience with Schema Registry/Avro; or hands-on enterprise security knowledge (OAuth2/OIDC, Azure Entra ID).

Numbers & Facts

Location

Washington, DC

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