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Job Description

Senior Full Stack Engineer Lead
(Python / React / PostgreSQL)

Summary of Position

SIGMA Assessment Systems is seeking a Senior Full-Stack Engineer Lead to help us manage and develop our next-generation assessment platform for administering high stakes psychometric/psychological testing to support organizations with selection, placement, planning and development decisions.

The ideal candidate has experience leading product development teams and large-scale software platforms from design to development. In this role, you will be working closely with a related business and our agency partner over several phases of the project as well as our Product Manager. This is an exciting opportunity as this team is newly forming – become a founding member of our development team and help shape it!

Your initial focus will be to get up to speed on our next-generation platform, provide input to refine our development pipeline and assist in the planning and execution of an assessment authoring platform. 


Key Responsibilities of Position

The successful candidate will:

  • Have proven technical leadership and mentorship skills
  • Have experience designing and developing large-scale platforms used by thousands of users, with a focus on writing highly performant code and ensuring high-stakes accuracy
  • Participate and contribute in the day-to-day development process
  • Collaborate with cross-functional teams to understand our clients and the value our product strives to deliver
  • Collaborate with our external agency developers to ensure code quality and consistent high-quality execution
  • Strive to deliver high-quality code even under tight timelines, while ensuring consistency by writing tests to maintain the code quality
  • Participate in code reviews, help estimate work and define tools and frameworks
  • Proactively contribute to continuous improvement, integration speed, developer productivity, release velocity and quality
  • Ensure the software is rigorously tested for performance, reliability, and scalability under different conditions. Understand when and how to execute various types of performance testing: speed, load/volume and scalability testing – using appropriate tools
  • Develop and maintain comprehensive documentation for software and systems
  • Own and manage troubleshooting issues with our QA Lead - especially those occurring in production


The successful candidate possesses knowledge and interest in:

  • Ticket tracking and documentation tools such as Jira, Notion, and Wrike, and internal communication platforms like Slack and Teams
  • Python, Django, Javascript, and React with a strong understanding of object-oriented programming principles and scripting
  • Extensive experience designing and developing API architecture using RESTful APIs or GraphQL endpoints
  • Extensive experience with PostgreSQL, including database design, schema creation and while ensuring database performance, scalability and security
  • Experience designing and developing micro-services
  • Azure services: servers, storage, functions, DevOps
  • Familiar with DevOps practices
  • Github
  • Linux

Qualifications and Requirements

  • Bachelor's degree in computer science, or a related field, or combination of equivalent training and experience
  • Five or more years as a software engineer and at least 2 or more years leading development teams
  • Organizational and time management skills, with attention to detail and accuracy
  • Self-development skills to keep current
  • English proficiency, written and oral


Hours and Compensation

This is a full-time permanent position with the expectation of 37.5 hours per week. SIGMA offers competitive salaries, vacation time with additional time off the last week of December for the holiday season, a health spending reimbursement account, and flexible working hours to all employees.

This position offers room for advancement and promotion as we continue to grow, limited only by your drive and abilities.


What Makes SIGMA a Great Place to Work

  • We hire smart, effective, and kind people. We treat them well and pay them fairly. Many of our employees have been with us for more than 15 years, and most have advanced degrees
  • A respectful and professional environment where your input is valued 
  • We’re family-friendly and provide an excellent work-life balance  
  • Time off during the winter holiday break

About Us

  •  For over 50 years, SIGMA has developed psychological assessments and offered related consulting services, with a focus on business applications of psychology, such as leadership development and employee selection. We work with executives, leaders, and other employees from a variety of industries, such as government, education, healthcare, retail, and hospitality.
  • SIGMA offers the opportunity to work in an engaging, challenging, and growing business with other talented individuals. Our size and structure give us a degree of flexibility which is usually not possible in very large organizations. If you’re looking for a rewarding job opportunity, join our talented team of professionals.

Instructions to Apply