ZIO Technologies is a Maryland-based IT services firm supporting federal and state clients through staff augmentation and professional servives engagements. We specialize in Network and Infrastucture Engineering, Coud, DevOps, Data Solutions, and AI/ML. This role is a client-facing assignment supported and employed by ZIO Technologies.
ZIO is proud to represent the following job opportunity:
ZIO Technologies has an opportunity for a Senior Java Developer with our esteemed state of Maryland client. This is a HYBRID position based in Annapolis, Maryland. Local candidates only.
MINIMUM REQUIREMENTS:
Bachelor's degree in computer science, or a related field.
PREFERRED REQUIREMENTS:
Eight (8) or more years core java development.
Four (4) or more years software development using Spring Boot and associated Spring
frameworks.
Four (4) or more years building interfaces utilizing React.
Four (4) or more years with the implementation of message queuing and event streaming
using RabbitMQ.
SCOPE OF WORK:
Offeror proposed resource(s) shall be responsible for the following:
1. Design and Development
a. Collaborate with cross-functional teams to architect, design, and implement enterprise
software solutions.
b. Apply event-driven architecture principles to develop scalable, resilient, and loosely coupled
applications.
c. Develop microservices using Spring Boot and associated Spring frameworks.
d. Build response and maintainable user interfaces using React.
e. Provide strong technical expertise in PrimeFaces 6.0 and above, including component usage,
customization, and integration within Java Server Faces (JSF) applications.
2. Message Broker Integration
a. Implement message queuing and event streaming using RabbitMQ.
b. When experience is based on Kafka, demonstrate understanding of architectural and
operational differences between Kafka and RabbitMQ.
c. Develop message producers, consumers, routing logic, and related integration components.
3. Deployment and Infrastructure
a. Deploy microservices to Kubernetes clusters using automated CI/CD pipelines.
b. Monitor, diagnose, and troubleshoot production systems to ensure reliability and uptime.
c. Perform performance tuning and scalability optimization across application and
infrastructure layers.
4. Quality Assurance
a. Write unit tests with a target of 85% or greater code coverage.
b. Participate in peer code reviews to enforce coding standards and best practices.
c. Conduct system testing, debugging, and validation activities.
5. Documentation and Communication
a. Prepare technical specifications, architecture documentation, and design decision records.
b. Produce sequence diagrams for major use cases as part of design deliverables.
c. Collaborate with product managers, designers, and engineering teams to refine requirements
and ensue alignment on deliverables.
6. Reporting Requirements (in a JIS prescribed format)
a. Submit weekly activity reports summarizing progress on assigned programs and projects.
b. Provide weekly project status reports in the JIS-prescribed format.
c. Complete weekly time reporting using JIS-provided forms, along with any additional reports
requested by the supervising manager.
REQUIREMENTS:
(1) Modern front-end development using React and/or Angular for building responsive,
component-based user interfaces.
(2) Message-queuing and event-streaming technologies, including RabbitMQ or Kafka,
for distributed system communication.
(3) Elasticsearch for indexing, search, and analytics (preferred but not mandatory).
(4) Microservices development using Spring Boot or equivalent Java frameworks.
(5) Cloud platforms such as AWS, Azure, or Google Cloud for deployment, monitoring,
and scaling (preferred but not required).
(6) DevOps and source control tools, including Git, CI/CD pipelines, and automated
build processes.
b. Capabilities
(1) Apply event-driven architecture (EDA) principles to design scalable and resilient
systems.
(2) Demonstrate high-level Java competency, including strong understanding of core
libraries, concurrency, collections, JVM fundamentals, and modern Java features.
(3) Analyze complex technical challenges and propose effective, maintainable
solutions.
(4) Develop and maintain applications using PrimeFaces 6.x and above, including
component customization and JSF integration.
(5) Produce clean, maintainable, and testable code aligned with industry best practices.
(6) Collaborate effectively within Agile or hybrid development teams.
c. Knowledge
(1) Software design patterns and architectural best practices, with the ability to apply
them appropriately.
(2) Containerization and orchestration techniques, including Kubernetes and Docker.
(3) RESTful API design, web services, and integration patterns.
(4) Relational and NoSQL databases, such as PostgreSQL, MySQL, MongoDB, or
Cassandra.
(5) Application performance tuning, monitoring, and observability tools (e.g.,
Prometheus, Grafana, ELK stack).
(6) Security best practices, including authentication, authorization, and secure coding
principles.
PLACE OF PERFORMANCE:
1. Work shall be performed in a hybrid setting each week, Monday through Friday, as follows:
a. Two (2) days remote at a suitable off-site location
b. Three (3) days on site at the Maryland Judiciary Information Systems, 189 Harry S Truman
Parkway, Annapolis, MD 21401
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