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# Senior Backend Engineer

- **Company:** Unisys
- **Location:** Rockville, MD, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), JavaScript (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Artificial Intelligence, Amazon Web Services, Amazon S3, Big Data, Software Quality, Relational Databases, DevOps, Apache Hadoop, Apache Hive, Python (Programming Language), Unix Shell, Standard Sql, Software Engineering, TypeScript, Web Services, Scripting, Large Language Models, Apache Spark, Backend, Cloudformation, Information Technology, Presto, Jenkins, Microservices
- **Published:** October 9, 2026
- **Apply:** https://www.disabledperson.com/jobs/75920715-senior-backend-engineer

## About the Role

* Backend (any: Python, Java, etc)
 * Ballpark 3 years big data/Spark
 * AWS
 * Ability to do production support, think through how to optimize performance, * Bachelor's degree in computer science, Information Technology, Engineering, or related technical field
 * 8+ years of professional software engineering experience with demonstrated leadership capabilities
 * 3+ years of hands-on development experience in Java, JavaScript/TypeScript, or SQL
 * 2+ years developing REST/web services and writing complex SQL queries for relational databases
 * 3+ years working with big data technologies such as Hadoop, Spark, or Presto
 * Proven experience with AWS services including EMR (Hive/Presto), ECS, Lambda, and S3
 * Proficiency with DevOps practices and CI/CD pipelines using tools like Jenkins and CloudFormation
 * Working knowledge of scripting languages including Unix Shell or Python
 * Experience using LLM-based coding tools with a disciplined approach to validating output - you don't merge what you can't explain

## Description

* Design, develop, test, implement, and support technical solutions within an Agile development environment, utilizing distributed microservices architecture, big-data technologies (HIVE, Presto, Spark, Hadoop), and full-stack systems
 * Partner with cross-functional teams to understand application requirements and testing scenarios, delivering scalable technical solutions that meet business objectives
 * Build and maintain high-performance API platforms on AWS infrastructure, enabling interactive-speed access to big data while adhering to AWS Well-Architected Framework principles
 * Leverage AI tools and technologies to enhance development efficiency, code quality, and solution innovation throughout the software development lifecycle
 * Drive technical innovation by staying current with emerging technology trends, including AI/ML advancements, evaluating new tools and frameworks, and actively contributing to internal and external technology communities
 * Demonstrate a growth mindset, take ownership of deliverables, maintain customer-centric focus, and exercise sound technical judgment in decision-making