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PLC Programmer

GreenXT
Philadelphia, PA
PLC Programmer Location Philadelphia, PA (Marconi Plaza-Packer Park area) : Green Expert Technology Inc. (GreenXT) is seeking PLC Programmer candidates to support the development, maintenance, and delivery of Machinery Control System (MCS) software for DDG-51 Arleigh Burke Class Destroyers. The selected candidate will be interfacing with U.S. Navy civilian software and systems engineers, support contractors, U.S. Navy ship's force, OEMs and engineering management. Primary responsibility will be to contribute to all aspects of the software life cycle including but not limited to requirements definition, software development, documentation, testing, deployment, support, and maintenance. About GreenXT GreenXT is comprised of technical and business leaders. We hire intelligent, hardworking, and dedicated people who not only possess the desire to learn and improve their skills but want to contribute to the design and development of innovative solutions that address the Navy's greatest technological challenges. We hired each of our employees because we believe they are exceptional, have the ability to excel at their job, and will contribute positively to GreenXT. GreenXT's business office strives to be the most efficient and effective business office supporting our customers. Our personnel aspire to become leaders through organized, rigorous, and diligent efforts. GreenXT employees are always looking to help one another succeed. We look out for each other and cross-train so that the product we deliver is one that we're confident in and proud of. We strongly believe in growth and providing our workforce with career development opportunities to help everyone achieve their goals. We take pride in our support of the United States Navy. We never forget that the work we do is ultimately in support of America's warfighter and serving those who serve. The idea that our hard work can help make their jobs easier, assist them to defend our nation, and can help ensure they return home safely to their loved ones motivates us every day, and we hope that you join us on that mission! Principal Duties/Responsibilities:
  • Provide Programmable Logic Controller (PLC) programming support for the development of new software and control logic
  • Provide lifecycle engineering support for computer-based and network-connected hardware and software systems
  • Support the overall design and development of new system functionality utilizing PLC hardware/software and Graphical User Interface (GUI) software
  • Provide testing, installation, and troubleshooting support for computer-based/IT systems in a shipboard or Land-Based Test Site environment
  • Develop and review technical documentation that includes, but is not limited to, requirements documents, design documents, test procedures, test plans, installation procedures, engineering analysis, and standard operating procedures
  • Provide design and integration support for hardware and software integration
  • Will interpret and understand associated electrical schematics, interface control documents (ICD), and drawings for implementation, review and/or redlines
  • Provide situational or status reports on findings, actions taken, and technical recommendations
  • Work will be performed onsite at NSWC Philadelphia
  • Provide distance and on-site customer support as necessary
Requirements:
  • Bachelor of Science Degree in Computer Science, Electrical Engineering, or Computer Engineering from an accredited college or university
  • Proficient in PLC programming (Siemens, Rockwell/Allen Bradley, Bedrock, Eaton, Honeywell, or similar)
  • Active DoD Secret Level Security Clearance (or the ability to obtain this clearance upon position acceptance) will be required
  • Candidate must be available to travel at times up to 10%
Desired Skills & Experience
  • Familiarity with IEC 61131-3 standard
  • Experience designing, developing, testing and installing software and supporting software products
  • Experience writing, reviewing and maintaining technical documentation such as but not limited to new or existing software requirements, user manuals, product specifications, and training materials
  • Basic knowledge of network protocols such as TCP/IP and UDP
  • Experience supporting and troubleshooting networked, IP-based system hardware/software both onsite and via distance support
  • Ability to read electrical schematics, ICDs, and drawings
  • Knowledge of fundamental concepts, practices, and procedures with computer-based systems
  • Proficiency in the use of Microsoft Office suite applications
  • Basic Technical writing ability
Desired, but not required:
  • Knowledge of US Navy Ship Systems
  • Atlassian tools suite - Jira/ Wiki/ confluence
  • Microsoft Project
  • Prior industrial shipyard and shipboard experience
  • A combination of software and hardware installation experience
Work Conditions The work is typically performed at client site locations in an office environment or Control System Test Labs. Additional work may be performed onboard US Navy Ships (pier side and at sea), which requires proper safety precautions, Personal Protective Equipment (PPE) and ability to go up and down shipboard stairways (ladders); work may require some physical effort in the handling of materials, boxes, or equipment. The above is not intended to be, nor should it be construed as, exhaustive of all responsibilities, skills, efforts, or working conditions associated with this job. Job Benefits:
  • Competitive Pay and PTO
  • 11 Paid Holidays
  • 401(k) with Matching
  • Medical and Dental Insurance
  • Life and Disability Insurance
Posted 2026-01-16

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