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Senior Software Developer I

Lessen

$120,000 - $130,000
Nov 17, 2025
Chicago, IL, United States of America
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Lessen LLC is looking to solve the business and technical problem of managing day-to-day activities within the organization's software development function by hiring a Senior Software Developer I.

Requirements

  • Object-oriented and service-oriented application development techniques and theories;
  • Relational database design and querying concepts using SQL, no-SQL, and MyBatis;
  • Microsoft .NET development using C, JAVA, Spring Boot, and Python;
  • Design Pattern, Data structure, and algorithm;
  • Client and server application development, API development, and REST and SOAP;
  • Using Unit testing theory;
  • Working within source control management systems and continuous integration and deployment environments and using Git and Azure DevOps;

Responsibilities

  • Work as part of an agile development team building and working on enterprise grade software.
  • Involved in all areas of development from design to development to testing.
  • Oversee the work of a team responsible for designing, building, testing, deploying, maintaining, and supporting applications or systems software.
  • Work to establish functional requirements and reviews solutions to ensure organizational needs are met.
  • Select and oversee implementation of one or more software development methodologies.
  • Develop short- and long-term product roadmaps to ensure continuous improvement of software.
  • Document and demonstrate solutions by developing documentation, flowcharts, layouts, diagrams, charts, code comments and clear code.

Other

  • Position requires a Bachelor's degree in Computer Science, Information Technology, or related field and 3 years of experience in a related occupation.
  • Telecommuting is permitted, but applicants must live within reasonable commuting distance.
  • Pay is determined by several compensable factors, such as qualifications, skill level, competencies, and work location.