Haystack
← Back to Jobs
Employee
Technology

Software Engineer Sr - E3 with Security Clearance

Lockheed MartinSunnyvale, CA🇺🇸United StatesPosted 14 Aug 2026

Quick Overview

Salary
$122.6k - $227.6k/yr
Work Type
Hybrid
Schedule
Employee
Level
Mid Senior

Job Description

Job Number 707 Standard Job Description Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve.

We're creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We're erasing boundaries and forming partnerships across industries and around the world. We're advancing spacecraft and the workforce to fuel the next generation. And we're reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career thats built for you. Lockheed Martin Space is seeking a full time Software Test Engineer.

In this role, you will support the software engineering lifecycle following the program Software Development Plan (SDP) to include requirements analysis, code & unit test, integration testing, requirements verification, and support to formal test/delivery. The successful candidate will have experience and/or knowledge of languages such as Perl, Python, and C++. Must be a US Citizen; this position will require Interim Secret government security clearance prior to starting and the ability . This position is located at a facility that requires special access.

Plans, conducts, and coordinates software development activities. Designs, develops, documents, tests, and debugs software that contains logical and mathematical solutions to business/mission problems or questions in computer language for solutions by means of data processing equipment. Applies the appropriate standards, processes, procedures, and tools throughout the development life cycle.

Applies knowledge of computer hardware and software, subject matter to be programmed in business/mission applications, information processing techniques used, and information gathered from system users to develop software. Corrects program errors, prepares operating instructions, compiles documentation of program development, and analyzes system capabilities to resolve questions of program intent, output requirements, input data acquisition, programming techniques, and controls. Ensures software standards are met.

Basic Qualifications - Proficient in Python, and C++.

  • Demonstrated ability to collaborate with multi-disciplinary, team-based groups.
  • Active Interim Secret Clearance; eligible for Final Secret Clearance.
  • Bachelor's degree in a STEM-related discipline from an accredited university.

Desired Skills - Proficient in Perl - Experience across the full software life-cycle (design, architecture, development, integration, test, qualification).

  • Familiarity with embedded software/hardware (hands-on or academic).
  • Working knowledge of DevOps/DevSecOps tools (e.g., CI/CD pipelines, automated testing, security scanning).
  • Comfortable in Agile development environments.
  • Excellent written and verbal communication skills.
  • Proven ability to test and verify software against defined requirements. #LMSpaceSoftwareEng Pay Information Full-Time Salary Range: $122600.00 - $227600.00 At Lockheed Martin, we know mission success starts with taking care of our people. Our Total Rewards program is designed to attract top talent, support your well-being, and help you grow-both professionally and personally. The salary range for this position is as listed on the requisition. Please note that the salary information listed is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidates work experience, education/ training, key skills as well as market(work location) and business considerations when extending an offer. Benefits offered: Medical, Dental, Vision, Flexible work arrangements and schedules (e.g., 4x10), 401(k) match, Paid time off, Holidays, Parental Leave, EAP, Flexible Spending Accounts, Education Assistance, Life Insurance, Short-Term Disability, and Long-Term Disability.
  • Annual short-term and/or long-term incentive compensation programs may be offered depending on the position. Payments under these annual programs are not guaranteed and can vary from year to year and are tied to a range of performance metrics.
  • For (Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays.

Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.

Skills

Agile
C++
Perl
Python

Similar jobs