Cyber Software Developer/Systems Engineer Sigma Defense is seeking a Cyber Software Developer/Systems Engineer to support PMA-290 Mission Systems Integrated Product Team Lead (IPTL) for Cybersecurity and Software Support Activity. Equal Opportunity Employer/Veterans/Disabled: Sigma Defense Systems is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.