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# Senior Backend Engineer - Java / AWS

- **Company:** Randstad
- **Location:** Washington, DC, United States
- **Experience:** Expert
- **Salary:** $124,800.0 - $135,200.0
- **Contract:** Contract
- **Skills:** Java (Programming Language), Amazon Web Services, Amazon S3, Application Integration Architecture, Systems Engineering, Automation of Tests, Cloud Engineering, Databases, Continuous Delivery, Continuous Integration, Relational Databases, DevOps, Disaster Recovery, Electronic Data Interchange (EDI), Fault Tolerance, Github, Junit, Python (Programming Language), PostgreSQL, Query Optimization, Mockito, Amazon Simple Notification Service (SNS), Software Engineering, Delivery Pipeline, Spring-boot, Mttr, Database Performance, Backend, Cloudformation, Servicebus, Event Driven Architecture, Information Technology, Deployment Automation, AWS Fargate, Operational Systems, Functional Programming, Cloudwatch, Restful APIs, Amazon Simple Queue Service (SQS), Jenkins, Microservices
- **Published:** November 4, 2026
- **Apply:** https://www.dice.com/job-detail/6ebaf1fd-1152-4d10-bec4-2111662e10ae

## About the Role

Experience: 7+ years of professional backend software engineering experience building and supporting distributed, high-availability production systems.

Core Languages: Advanced, hands-on proficiency in Java (Java 17+), Spring Boot, and Python.

AWS Cloud Engineering: Extensive hands-on experience across core AWS integration and compute services, including ECS/Fargate, EventBridge, SQS, SNS, Lambda, S3, and CloudWatch.

Database & Performance: Strong relational database background with PostgreSQL / Amazon Aurora PostgreSQL, including schema design, query optimization, and tuning.

CI/CD & IaC: Practical experience managing automated deployments using Jenkins, GitHub Actions, AWS CodePipeline, and CloudFormation.

Testing: Demonstrated proficiency with automated unit and integration testing frameworks (JUnit, Mockito).

Education: Bachelor's degree in Computer Science, Engineering, or a related technical discipline (or equivalent practical experience).

## Description

Randstad Digital is seeking a Senior Backend Engineer (Java / AWS) to join a core engineering delivery team within a major national passenger transportation organization's Corporate & Operations Technologies division. In this role, you will design, build, and support cloud-native enterprise integrations and transaction-processing services that power critical operational systems. Working closely with Principal Systems Engineering leadership, you will take hands-on ownership of resilient, multi-region AWS architectures, event-driven pipelines, and automated CI/CD workflows, ensuring five-nines reliability, rapid disaster recovery, and seamless B2B data exchange., Cloud-Native & Integration Architecture: Design, build, deploy, and maintain scalable microservices, RESTful APIs, and event-driven architectures utilizing Java 17+, Spring Boot, Python, and AWS integration services.

Resiliency & Disaster Recovery: Architect fault-tolerant, high-availability solutions across multiple AWS Availability Zones and Regions, conducting failover testing and actively reducing Mean Time to Resolution (MTTR).

Production Operations & Root Cause Analysis: Investigate complex production incidents, perform root cause analysis (RCA), and implement robust observability frameworks using Amazon CloudWatch.

DevOps & Pipeline Automation: Build, maintain, and optimize continuous integration and delivery (CI/CD) pipelines leveraging GitHub Actions, Jenkins, AWS CodePipeline, and CloudFormation infrastructure-as-code (IaC).

Data Modeling & Optimization: Implement relational data models, craft complex queries, and tune database performance on Amazon Aurora PostgreSQL.

Mentorship & Quality Standards: Drive peer code reviews, champion automated testing standards (JUnit, Mockito), and provide technical mentorship to junior developers.