Principal Software Developer

System One is seeking a highly skilled Full Stack Developer to support the development and ongoing enhancement of a mission-critical data management application used to support complex, data-heavy nuclear power construction projects.

This application is central to improving project delivery by linking plant safety functions, requirements, analyses, documentation, testing, and workflows into an integrated data ecosystem. The role works closely with engineering leadership, QA, and internal users to continuously improve system performance, quality pedigree, and usability in a regulated environment.

Position Summary

The Full Stack Developer will design, implement, maintain, and optimize a large-scale web application supporting nuclear reactor design and construction. The system includes a Python / Django / DRF backend running on RHEL servers and a JavaScript / Vue3 / Quasar single-page application frontend.

The development team is small and highly collaborative (~5 developers). This role requires strong ownership, technical depth, and the ability to operate effectively in a fast-paced yet highly regulated environment.

Key Responsibilities

Design, implement, document, and test software based on formally defined requirements and internal bug reports

Perform refactoring and maintenance to improve short- and long-term developer and user productivity

Independently identify and prioritize tasks without explicit assignment

Support verification and validation activities to ensure software meets specifications

Identify performance and productivity bottlenecks and implement solutions

Perform administrative backend data management operations as needed

Translate new feature requests into formal software requirements

Train and support engineering users in system functionality

Mentor other developers and support team development

Support build and testing systems (e.g., Jenkins and dashboards)

Support server configuration and maintenance

Facilitate design reviews and ensure efficient approval workflows

Review proposed code changes and provide detailed feedback prior to deployment

Ensure compliance with quality standards and regulatory requirements

Minimum Qualifications

8+ years of professional web application development experience

Expert-level programming skills in Python and JavaScript

5+ years of experience with Django and Django REST Framework (DRF)

5+ years of experience with at least one modern JavaScript framework (Vue3 preferred)

5+ years of experience writing and maintaining automated software tests

Strong expertise with development tools including git, IDEs, debuggers, profilers, test frameworks, and packaging tools

Comfort with advanced git workflows (interactive rebasing required)

Ability to deliver complex software in evolving, fast-paced environments

Professionalism and discipline to work within a highly regulated nuclear environment

Strong understanding of software QA and SDLC best practices

Ability to give and receive professional technical feedback

Preferred Qualifications

Degree in Computer Science, Applied Mathematics, or related field

Experience building and maintaining Linux application and database servers

Experience configuring and maintaining CI systems

Strong expertise with Vue3 and Quasar

Experience with Celery

Experience with Cypress

Experience supporting large industrial or construction projects

Experience working in ASME NQA-1 environments

Excellent written and verbal communication skills

Additional Required Attributes (Added)

Strong communication skills desired

High degree of trust and integrity; ability to communicate openly, demonstrate respect, and foster teamwork

Actual starting level and job title will be determined based on assessment of qualifications

Physical & Work Requirements

Ability to sit and / or stand for extended periods

Bending, stooping, grasping, gripping, and fine motor control required

Ability to safely lift up to 25 pounds

Repetitive work and visual / audio focused tasks

Work environment includes stairs, typing / keyboard use, and extended workdays (>

8 hours / day)

Travel : 0-5%

Ref : #161-Managed Staffing Charlotte

System One, and its subsidiaries including Joulé, ALTA IT Services, CM Access, TPGS, and MOUNTAIN, LTD., are leaders in delivering workforce solutions and integrated services across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible full-time employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.