Senior Software Developer I
Lessen
Software Engineering
Chicago, IL, USA
USD 120k-130k / year
Posted on Nov 18, 2025
Employer
Lessen LLC
Job Title
Senior Software Developer I
Job Requisition
20851.64.4
Salary
Job Location
Chicago, Illinois
Job Duties
The Senior Software Developer supports the Product and Technology Department by managing day-to-day activities within the organization's software development function. 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. Prepare and install solutions by determining and designing system specifications, standards and programming. Improve operations by conducting system analysis, recommending changes in policies and procedures.
Telecommuting is permitted, but applicants must live within reasonable commuting distance.
Job Requirements
Position requires a Bachelor's degree in Computer Science, Information Technology, or related field and 3 years of experience in a related occupation.
Must include some experience in each of the following:
1. Object-oriented and service-oriented application development techniques and theories;
2. Relational database design and querying concepts using SQL, no-SQL, and MyBatis;
3. Microsoft .NET development using C#, JAVA, Spring Boot, and Python;
4. Design Pattern, Data structure, and algorithm;
5. Client and server application development, API development, and REST and SOAP;
6. Using Unit testing theory;
7. Working within source control management systems and continuous integration and deployment environments and using Git and Azure DevOps;
8. Using Cloud computing and Cloud Architecture, including Azure and AWS
Salary range for this position is $120,000.00 to $130,000.00 per year. Pay is determined by several compensable factors, such as qualifications, skill level, competencies, and work location.
Foreign Language, Licenses, and Certifications
N/A
Contact Instructions
To apply, send resumes to Jennifer Gordon at Jennifer.Gordon@Lessen.com. Must reference job 20851.64.4
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