Sr. Java Developer

Unisys; Rockville (MD); On-site; USD 120,000 - 190,000; Full time

Benefits offered by this job

401(k) matching

Healthcare benefits

Job summary

Unisys in Rockville, MD seeks a Senior Software Engineer to own and advance enterprise-grade applications. You will design, develop, and maintain backend systems on AWS, using Java and Spring Boot, with RESTful and GraphQL APIs and modern data stores. You will mentor peers and drive high-quality software across the lifecycle.

Responsibilities include designing scalable architectures, optimizing performance, and championing DevOps practices with CI/CD pipelines in a cloud-native environment.

Qualifications

• Seasoned Java developer with at least 7 years of experience in enterprise-grade applications.
• Proficiency in designing scalable, maintainable backend systems using Spring Boot.
• Experience with AWS cloud services and modern data storage technologies.
• Strong knowledge of RESTful and GraphQL APIs, microservices, and CI/CD.
• Excellent object-oriented design, testing, and performance optimization skills.

Responsibilities

• Own development of software products across the SDLC and mentor engineers.
• Design, develop, and maintain enterprise-grade applications on AWS.
• Implement scalable backend systems from API layer to persistence.
• Collaborate across teams to remove barriers and align goals.
• Coach teammates and ensure quality and timely delivery.

Skills

Java

Spring Boot

REST APIs

GraphQL

Microservices

Event-driven

AWS

Object-oriented

Performance tuning

Unit testing

Education

Bachelor’s degree in CS or related

Tools

AWS services (Lambda, Step Functions, SQS, SNS, S3, ECS, Fargate, Aurora)

PostgreSQL/MySQL

MongoDB

Neo4j/Amazon Neptune

Job description

Working independently, the Senior Software Engineer owns development of software products and works on improving the overall quality of the product throughout the software development life cycle and mentors other Software Engineers.

Job Description:

Seasoned individual contributor with deep expertise in Java to design, develop, and maintain complex, enterprise-grade applications on AWS through clean, modular, and performant code; proficiency in Python preferred.

Essential Job Functions:

Designs and develops industry-leading solutions that meet defined quality standards, reliability specifications, and help achieve key strategic objectives

Takes broad perspective to problems and exercises independent judgement in techniques and evaluation criteria to obtain results

Identifies ways to overcome challenging situations that jeopardize the achievement of business goals

Develops actionable insights from analyzing software development trends, software engineering best practices, and innovative test environment management tools and communicates integration recommendations to management

Partners within and across teams to remove barriers and identify shared goals and priorities

Coaches and trains less experienced colleagues in techniques, processes, and responsibilities

Ensures completion of tasks and quality of work; supports peers to ensure the team delivers consistently

Essential Technical Skills:

Backend Development:

Strong experience in backend development across server-side technologies and architectures. Ability to design and implement scalable, high-performance systems from API layer to data persistence, with deep understanding of modern frameworks (Spring Boot), RESTful and GraphQL APIs, microservices architectures, event-driven architectures, and database design patterns.

Data Storage Technologies:

Strong experience with modern data storage solutions including relational databases (Example: PostgreSQL, MySQL), NoSQL systems (Example: MongoDB, Cassandra), and graph databases (Example: Neo4j, Amazon Neptune), with expertise in data modeling approaches and design patterns for diverse data persistence requirements.

System Design & Architecture:

Strong system design experience with ability to architect scalable, enterprise-grade document and metadata ingestion, processing, and persistence at scale

DevOps & Infrastructure:

Assist with implementing and maintaining CI/CD pipelines while architecting and developing cloud-native solutions leveraging AWS services, including Lambda, Step functions, SQS, SNS, S3, ECS, Fargate, Aurora, fostering a strong DevOps culture within the team.

Education & Experience Requirements:

Bachelor’s degree in Computer Science, Information Systems or related discipline with at least 7 years of related experience, or equivalent training and/or work experience.

Strong experience in object-oriented development

Strong experience with cloud technologies

Strong experience in performance tuning and optimization

Strong experience in DevOps and CI\CD technologies

Strong experience in test automation and unit testing