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Software Engineer with Security Clearance
Open Systems Technologies CorporationAnnapolis Junction, MD🇺🇸United StatesPosted 13 Jul 2026
Quick Overview
Work Type
Hybrid
Schedule
Employee
Level
Mid Senior
Job Description
Tagged: Software Engineer, Engineering, TS/SCI with Poly (MPO) Open Systems Technologies Corporation is a leader in the government contracting marketplace, providing Enterprise Security and Cloud Computing solutions to support large organizations. Our capabilities include supplying federal government entities and private businesses with software development, scientific and engineering technical assistance, systems integration, and enterprise security. Since its founding in 1996, OST has been committed to delivering high-quality, best-in-class results that bring added value to our clients while investing in our employees’ futures by providing exciting projects to work on, and robust benefits to include technical training and certifications, relocation assistance, and a 401K match with immediate vesting. Open Systems Technologies Corporation is looking for a Software Engineer to join a high-performing agile team that uses the Scaled Agile Framework (SAFe) methodology to support a nationally significant and fast-paced program. Program execution follows DEVOPS best practices and employs robust development, test, and production environments. Behavior Driven Development (BDD) and test automation tools are utilized alongside a full suite of team collaboration tools. The program is focused on injecting new technology and adding advanced capabilities in support of an ongoing operational system. Responsibilities: The Software Engineer will complete software development tasks both individually and as a member of an agile team. The selected individual will actively participate in program increment planning and related team activities. He/she/they will analyze and study complex system requirements, use design software tools, provide support using formal specifications, data flow diagrams, and other accepted design techniques with the use of Computer Aided Software Engineering (CASE) tools, and will use sound software engineering principles to ensure that developed code is modifiable, efficient, reliable, understandable, fault-tolerant, and reusable. The selected candidate will provide software process management and control throughout the coding portion of the software development process and will promote code reuse and cross-program collaboration by creating common functions and shared actions for developers and testers. He/she/they will engineer, author, tune and document automation scripts in a development environment and deploy to the test/production bench. Required Qualifications: * Clearance: TS/SCI w CI Poly
* Bachelor's Degree in Computer Science or a related discipline Relevant work experience may be substituted for a Degree
* Demonstrated experience with Java is required.
* Experience or familiarity with multiple of the following: Java/J2EE, Python, C/C++, SQL, SOAP, WSDL, WADL, PERL, PowerShell, VBS, Eclipse, Postgres, Oracle, and Jenkins on a Windows platform
* Experience with User Interface development, knowledge of databases and structures, and/or experience working with XHTML, HTML, XML, XSLT
* Experience developing on Windows and/or Linux operating systems
* Must have a strong understanding of sound software development principles and practices
* Must be able to plan and prioritize personal tasks and be able to communicate effectively verbally and in writing
* Must be an independent thinker, capable of performing high-quality work, both independently and with a team, in a fast-moving environment
Preferred Qualifications: * Experience with the following: JEE, SQL, application servers (Tomcat, WebLogic, and JBoss), scripting
* Experience with high-level requirements management, including requirements decomposition, secure systems engineering and development, trade-off analysis, interface control, testing, and continuous integration
* Experience in software development on Agile teams using Agile Developer practices such as Pair Programming, BDD, Refactoring, and ATDD
* Experience with FITNesse, Mockito, Cucumber, Unified Functional Tester (UFT), and Selenium
* Experience with Behavior-Driven Development (BDD) or Test-Driven Development (TDD)
* Secure Software development (i.e. Layer 7 Policy)
* Experience with the Scaled Agile Framework (SAFe) methodology, SAFe Agilest Certification, or past experience as a member of an agile team BENEFITS OST is an Equal Opportunity Employer and has been operating since 1996 providing support on various contracts with Government agencies. We offer a comprehensive benefits package that includes 3 weeks paid time off, 11 Federal Holidays, medical/dental coverage, STD, LTD, Life Insurance, AD&D, 401k with up to 4% match, and end-of-year profit sharing. Job # 538 Applicants for positions requiring security clearance will be automatically rejected for candidates not meeting the Security Clearance requirement.
* Bachelor's Degree in Computer Science or a related discipline Relevant work experience may be substituted for a Degree
* Demonstrated experience with Java is required.
* Experience or familiarity with multiple of the following: Java/J2EE, Python, C/C++, SQL, SOAP, WSDL, WADL, PERL, PowerShell, VBS, Eclipse, Postgres, Oracle, and Jenkins on a Windows platform
* Experience with User Interface development, knowledge of databases and structures, and/or experience working with XHTML, HTML, XML, XSLT
* Experience developing on Windows and/or Linux operating systems
* Must have a strong understanding of sound software development principles and practices
* Must be able to plan and prioritize personal tasks and be able to communicate effectively verbally and in writing
* Must be an independent thinker, capable of performing high-quality work, both independently and with a team, in a fast-moving environment
Preferred Qualifications: * Experience with the following: JEE, SQL, application servers (Tomcat, WebLogic, and JBoss), scripting
* Experience with high-level requirements management, including requirements decomposition, secure systems engineering and development, trade-off analysis, interface control, testing, and continuous integration
* Experience in software development on Agile teams using Agile Developer practices such as Pair Programming, BDD, Refactoring, and ATDD
* Experience with FITNesse, Mockito, Cucumber, Unified Functional Tester (UFT), and Selenium
* Experience with Behavior-Driven Development (BDD) or Test-Driven Development (TDD)
* Secure Software development (i.e. Layer 7 Policy)
* Experience with the Scaled Agile Framework (SAFe) methodology, SAFe Agilest Certification, or past experience as a member of an agile team BENEFITS OST is an Equal Opportunity Employer and has been operating since 1996 providing support on various contracts with Government agencies. We offer a comprehensive benefits package that includes 3 weeks paid time off, 11 Federal Holidays, medical/dental coverage, STD, LTD, Life Insurance, AD&D, 401k with up to 4% match, and end-of-year profit sharing. Job # 538 Applicants for positions requiring security clearance will be automatically rejected for candidates not meeting the Security Clearance requirement.
Skills
Oracle
SOAP
SQL
Selenium
TDD
Agile
BDD
Cucumber
C++
HTML
Java
Jenkins
Perl
PowerShell
Python
SAFe
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