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Software Development Engineer III

RedSail Technologies
Spartanburg, SC Full Time
POSTED ON 1/14/2026 CLOSED ON 2/17/2026

What are the responsibilities and job description for the Software Development Engineer III position at RedSail Technologies?

Software Development Eng. III 

Job Summary 

The Software Development Engineer III will be involved in the design and implementation of products that exceed functional expectations consistent with the values of RedSail Technologies. Is active in maintaining code quality and functional design following company and industry best practices. 

Key Duties

  • Develops and delivers quality code that meets the functional requirements defined by product management.
  • Ensures high quality by recommending and establishing coding best practices.
  • Communicates and accurately documents feature status, coding patterns, and functional design.
  • Performs code review and analysis.
  • Serves as a mentor to the development team.
  • Participates in team scrum activities
  • Performs other duties as assigned by RedSail Technologies development management.

Education/Training

  • Bachelor's degree in Computer Science OR the equivalent (4 years) combination of education and/or years of relevant working experience

Required Work Experience/Skills

  • 1 year of professional experience in a Senior Software Engineer position.
  • 5 years of professional experience as a Software Engineer.
  • Expert understanding of robust and scalable software development principles
  • Understanding of Microservice patterns
  • Experience with API design
  • Experience with database design and development
  • Experience in layered application design
  • Experience with unit and integration testing
  • Knowledge of JavaScript based frameworks, preferably Angular

Preferred Work Experience/Skills

  • Expert understanding of C# and the .NET framework
  • Expert understanding of Angular
  • Expert understanding of relational databases such as PostgresDB
  • Intermediate understanding of NoSQL databases such as Mongo DB
  • Full-stack development experience
  • Hands on experience with Kafka
  • Hands on DevOps experience

Discretionary Judgment

  • Uses independent judgment and discretion based upon the employee’s experience in the position and knowledge of the products, equipment, and services.
  • Uses good judgment and possesses ethical work values.

Physical Demands, Working Conditions, and General Employment Guidelines

  • Moderate or high levels of stress may be experienced in the performance of the job.
  • Position is performed in a general office environment, home office, or approved remote workspace where physical work includes, but is not limited to, sitting, standing, reaching, kneeling, bending, and lifting to 25 lbs.

Equipment

  • Daily use of Microsoft Teams (phone), computer, printer, and other routine office equipment.
  • Must have reliable and consistent internet access.

Safety to Self and Others

  • Little responsibility for the safety of others. The job is performed in an office setting where there are no hazardous materials or equipment.

Working Conditions/Hazards

  • Position is performed in an open office environment or approved remote work location.

Work Location

  • RedSail office or Remote

Salary.com Estimation for Software Development Engineer III in Spartanburg, SC
$113,630 to $139,252
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