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# Full Stack Engineer

- **Company:** Unisys
- **Location:** Tysons, VA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Amazon Elastic Compute Cloud, Amazon S3, Automation of Tests, Unit Testing, Software as a Service, Code Review, Continuous Integration, Database Queries, Apache Hive, Python (Programming Language), PostgreSQL, MongoDB, Performance Tuning, Query Optimization, Cloud Services, Software Engineering, Performance Testing, ReactJS, Database Optimization, Spring-boot, Database Performance, Generative AI, Backend, Amazon Relational Database Service, AngularJS, Gitlab-ci, Infrastructure Automation Frameworks, AWS Fargate, Front End Software Development, Api Design, Restful APIs, Docker
- **Published:** October 11, 2026
- **Apply:** https://www.juju.com/job/2_163724640

## About the Role

* 10 years of experience
 * Java, Springboot, API
 * Frontend: Angular, React
 * DB - RDS, Query optimization, tuning
 * AWS, Lambda
 * Experience in performance testing, automation, unit testing
 * AI : must have understanding the code, to tune and optimize the code., * 10+ years of professional software engineering experience, including full stack development.
 * Strong hands-on experience with Java, Spring Boot, and API development.
 * A backend-first engineering background and the ability to work across the full stack.
 * Experience with Angular and/or React.
 * Experience with AWS, especially Lambda and RDS.
 * Strong SQL skills, including query optimization and database performance tuning.
 * Hands-on experience with performance testing, test automation, and unit testing.
 * A problem-solving mindset: able to diagnose issues, make sound tradeoffs, and balance immediate fixes with long-term solutions.
 * The ability to understand, evaluate, and improve code produced with AI-assisted tools.
 * Strong communication skills and a track record of taking work through to completion.

Nice to have

 * Experience with PostgreSQL, MongoDB, Python, or Spark SQL.
 * Experience with CI/CD, Docker, infrastructure as code, or GitLab CI/CD.
 * Familiarity with AWS services such as EC2, ECS, Fargate, S3, or EMR.
 * AWS certification, such as Solutions Architect or Developer Associate.
 * Experience using generative AI tools across software development workflows.

## Description

We're looking for an experienced Senior Full Stack Engineer who enjoys solving complex problems and taking ownership from investigation through resolution. This is a backend-focused role building and improving production applications, APIs, and cloud services.

You'll help address urgent issues with practical short-term solutions while also identifying and delivering durable fixes. Your work will support important regulatory operations and contribute to protecting investors and maintaining fair, efficient markets.

What you'll do

 * Design, build, and maintain backend services and APIs using Java and Spring Boot.
 * Investigate production and performance issues, implement appropriate immediate mitigations, and follow through with permanent solutions.
 * Build and optimize REST APIs and services for reliability, performance, and scalability.
 * Work with AWS, including Lambda and RDS, to develop and operate cloud-based applications.
 * Analyze database performance, optimize queries, and contribute to database tuning.
 * Build and maintain frontend features using Angular and/or React.
 * Develop and improve unit tests, automated tests, and performance testing practices.
 * Use AI-assisted development tools thoughtfully: understand generated code, assess its quality, and tune or optimize it as needed.
 * Identify technical risks, simplify code and infrastructure, and improve maintainability.
 * Collaborate with product, data, compliance, and engineering teams; participate in code reviews and share knowledge.