Apex Systems
Information Technology - Developer-Java/J2EE Professional
Apex Systems, Falls Church, Virginia, United States, 22042
Senior Java/Python Developer
We are seeking a confident, self-motivated developer to contribute to the design, development, testing, and support of enterprise-level applications. This role involves working across Java/J2EE and Python platforms, integrating modern frameworks and tools to deliver high-impact solutions. The position includes responsibilities in project delivery, technical leadership, and production support. Key Responsibilities
Project Delivery & Operations Design, develop, test (manual and automated), deploy, and support enterprise applications Build and maintain test automation suites using Selenium and JUnit Deliver projects using Agile methodologies Implement complex integrations using RESTful APIs, GraphQL, and industry-standard technologies Conduct performance tuning and stress testing of models Address software security vulnerabilities Technical Leadership Lead impact assessments, effort analysis, and task assignments Conduct design and code reviews to ensure best practices Mentor and onboard new team members through knowledge transfer sessions Production Support Participate in on-call rotation and troubleshoot production issues Resolve defects and ensure stable, high-quality releases Required Qualifications
57+ years of experience in IT, with strong hands-on development in Java and/or Python Bachelor's degree in Computer Science, Computer Engineering, or related field Proficiency in: Java/J2EE, Spring Boot, Flask SQL (DB2, Postgres, Sybase, MySQL), MongoDB (MQL) Front-end: Angular, JavaScript, TypeScript, Node.js DevOps: Docker, Kubernetes, Jenkins, Eclipse, IntelliJ, VSCode Version Control: Git, Bitbucket Testing: JUnit, Mockito, Selenium Messaging & Streaming: Kafka, AMQ, JMS Monitoring: ELK, Splunk, Dynatrace Scripting: Shell, Autosys APIs: RESTful, GraphQL Machine Learning Tools: NumPy, Pandas, Scikit-learn, SHAP Preferred Skills
Experience with AWS and cloud-native development Strong analytical and problem-solving abilities Effective communication and collaboration across teams Adaptability to fast-paced, evolving environments Business acumen and intellectual maturity Personal Competencies
Customer Focus: Engage directly with clients to understand and meet their needs Partnership: Align with company goals and collaborate across silos Drive for Execution: Deliver meaningful results with precision and urgency EEO Employer Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.
We are seeking a confident, self-motivated developer to contribute to the design, development, testing, and support of enterprise-level applications. This role involves working across Java/J2EE and Python platforms, integrating modern frameworks and tools to deliver high-impact solutions. The position includes responsibilities in project delivery, technical leadership, and production support. Key Responsibilities
Project Delivery & Operations Design, develop, test (manual and automated), deploy, and support enterprise applications Build and maintain test automation suites using Selenium and JUnit Deliver projects using Agile methodologies Implement complex integrations using RESTful APIs, GraphQL, and industry-standard technologies Conduct performance tuning and stress testing of models Address software security vulnerabilities Technical Leadership Lead impact assessments, effort analysis, and task assignments Conduct design and code reviews to ensure best practices Mentor and onboard new team members through knowledge transfer sessions Production Support Participate in on-call rotation and troubleshoot production issues Resolve defects and ensure stable, high-quality releases Required Qualifications
57+ years of experience in IT, with strong hands-on development in Java and/or Python Bachelor's degree in Computer Science, Computer Engineering, or related field Proficiency in: Java/J2EE, Spring Boot, Flask SQL (DB2, Postgres, Sybase, MySQL), MongoDB (MQL) Front-end: Angular, JavaScript, TypeScript, Node.js DevOps: Docker, Kubernetes, Jenkins, Eclipse, IntelliJ, VSCode Version Control: Git, Bitbucket Testing: JUnit, Mockito, Selenium Messaging & Streaming: Kafka, AMQ, JMS Monitoring: ELK, Splunk, Dynatrace Scripting: Shell, Autosys APIs: RESTful, GraphQL Machine Learning Tools: NumPy, Pandas, Scikit-learn, SHAP Preferred Skills
Experience with AWS and cloud-native development Strong analytical and problem-solving abilities Effective communication and collaboration across teams Adaptability to fast-paced, evolving environments Business acumen and intellectual maturity Personal Competencies
Customer Focus: Engage directly with clients to understand and meet their needs Partnership: Align with company goals and collaborate across silos Drive for Execution: Deliver meaningful results with precision and urgency EEO Employer Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.