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# Principle Software Engineer (On-site)

- **Company:** HEPCO
- **Location:** Hudson, NH, United States
- **Experience:** Experienced
- **Salary:** $133,120.0 - $143,520.0
- **Contract:** Permanent contract
- **Skills:** HTML, Java (Programming Language), JavaScript (Programming Language), C Sharp (Programming Language), Cascading Style Sheets (CSS), Configuration Management, Databases, Ext JS, Oracle Databases, Oracle SQL Developer, Software Engineering, PL-SQL, SQL Databases, Web Applications, Infrastructure Automation Frameworks, Information Technology, Software Coding
- **Published:** November 4, 2026
- **Apply:** https://www.thejobnetwork.com/job/7f2be88d-0bf0-4c42-b890-7f3e87f4d31c/principle-software-engineer-onsite

## About the Role

* Bachelor's degree in Computer Science or a related field.
 * Four to seven years of relevant technical experience.
 * Experience with Java, JavaScript, ExtJS, Oracle SQL, PL/SQL, HTML, and C#.
 * Experience working in Unix/Linux and Windows environments.
 * Knowledge of the software development lifecycle, coding standards, and standard configuration management tools.
 * Ability to collaborate closely with technical teams and end users.

Preferred Qualifications:

 * Basic understanding of manufacturing execution systems and their use in manufacturing operations.

## Description

Our client is seeking a Principal Software Engineer to support the development and sustainment of a Paperless Manufacturing Execution System (MES) and its supporting databases. This role will develop software solutions that improve manufacturing efficiency, automate data collection, and support continuous improvement.

 * Design, develop, and support Oracle databases using SQL and PL/SQL.
 * Develop and maintain web applications using Java, JavaScript, HTML, and CSS.
 * Create and execute verification test plans for completed projects.
 * Collaborate with team members and end users to develop solutions to complex technical challenges.
 * Design tools that help users work more efficiently and meet compliance requirements.
 * Develop and implement automated data collection software.
 * Maintain detailed documentation of software changes and test plans.
 * Follow software development lifecycle practices, coding standards, and configuration management procedures.
 * Support cost reduction and continuous improvement initiatives with MES database users.