Software Developer II

The Software Developer II designs, develops, and maintains software applications or systems. Works closely with clients, users, and other stakeholders to understand their needs and requirements and then translates them into functional software solutions as defined in the contract. This role focuses on Qlik-based analytics development and Python-based automation and tooling, including the development of OSCAL-compliant artifacts such as System Security Plans (SSPs).

Chickasaw Nation Industries, Inc. serves as a holding company with multiple subsidiaries engaged in several lines of business (Technology, Infrastructure & Engineering, Health, Manufacturing, Public Safety, Consulting, and Transportation) for the federal government and commercial enterprises. A portion of our profits is used to support Chickasaw citizens. We are proud to support the economic development and long-term viability of the Chickasaw Nation and its people. CNI offers premium benefits eligible on the first day of hire to full time employees; (Medical - Dental – Vision), Company Life Insurance, Short-Term and Long-Term Disability Insurance, 401(K) Immediate Vesting, Professional Development Assistance, Legal Aid Assistance Program, Family Planning / Fertility Assistance, Personal Time Off, and Observance of Federal Holidays.

As a federal contractor, CNI is a drug-free workplace and adheres to the Federal Controlled Substance Act.    

ESSENTIAL REQUIREMENTS  

Must be able to obtain and maintain the required customer clearance for access to systems, facilities, equipment, and property.

Must possess appropriate level of certifications for this position as required by the contract.

Proficiency in C#/.NET development, including application architecture, API design, and modern .NET (6/7/8) patterns and practices.

Proficiency in web frontend development, including React, TypeScript, HTML/CSS, and responsive UI design.

Experience with REST API design and development, including building, consuming, and documenting APIs for data exchange between application layers.

Proficiency in Python development, including scripting, data transformation, API integration, and familiarity with libraries for data processing and automation.

Experience with relational database development, preferably PostgreSQL, including schema design, query optimization, and data modeling.

Experience with Qlik Sense/QlikView development is strongly preferred.

Experience working with cybersecurity data sources and frameworks such as Nessus, SCAP, STIG, OSCAL, NIST SP 800-53, and vulnerability management data preferred.

Experience with configuration management including implementing new systems, networks, and/or application of security requirements preferred.

Experience with version control (Git/Azure DevOps), CI/CD pipelines, and agile development methodologies preferred.

KEY DUTIES AND RESPONSIBILITIES  

Essential Duties and responsibilities include the following.  Other duties may be assigned. 

Designs, develops, and maintains full-stack web applications using C#/.NET, React/TypeScript, and PostgreSQL to support the next-generation cybersecurity analytics platform.

Builds and maintains REST APIs that serve as the integration layer between data sources (scanner data, OSCAL data, external systems), the PostgreSQL database, and the web frontend.

Supports and enhances existing Qlik Sense applications during the platform transition. Collaborates with existing team members to ensure continuity of current analytics capabilities

Develops Python-based tools and modules to support OSCAL functionality, including automated generation of System Security Plans (SSPs) and other compliance artifacts aligned with NIST standards.

Applies proficient knowledge on multiple complex work assignments that may require innovation in determining how to accomplish the tasks. This includes helping with developing the methodology, troubleshooting, offering solutions to problems, and contributing to the deliverables and performance metrics where applicable. Tests and maintains software. 

Provides assistance for more senior positions and performs functional duties under minimal supervision in analyzing, updating, or designing software applications and database functionalities using local knowledge of management systems. Assists in performing system and software backups and updates. Implements and utilizes software testing frameworks when appropriate. Provides documentation to support analysis, design, and development activities. 

Implements measures to protect sensitive data and prevent vulnerabilities or breaches. Monitors system security, updates and installs security patches and software as necessary. Responds to periodic system security assessments. 

Stays up-to-date with the latest technologies, programming languages, frameworks, and best practices in software development. Continuously improves skills through self-learning or professional development opportunities. 

EDUCATION AND EXPERIENCE 

Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or related field and two to four (2–4) years of experience, or equivalent combination of education/experience.

Two (2) or more years of hands-on experience with C#/.NET application development required.

Experience with modern web frontend frameworks (React, Angular, or Vue) required.

Experience with relational database design and SQL (PostgreSQL preferred) required.

Experience with Python scripting and development required.

Experience with Qlik Sense/QlikView development strongly preferred.

Familiarity with cybersecurity concepts, vulnerability management data, and compliance frameworks (NIST, OSCAL, FedRAMP) strongly preferred.

Two (2) years experience with teamwork and interpersonal communication, including interaction with team members, users/customers with varying levels of expertise, and management personnel preferred.

PHYSICAL DEMANDS  

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job.  Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions of this job. 

Regularly required to sit. Regularly required use hands to finger, handle, feel, reach with hands and arms to handle objects and operate tools, computer, and/or controls. 

EOE including Disability/Vet  

The estimated pay range for this role is $85K to $150K, with the final offer contingent on location, skillset, and experience.

CNI offers a comprehensive benefits package that includes:

• Medical
• Dental
• Vision
• 401(k)
• Family Planning/Fertility Assistance
• STD/LTD/Basic Life/AD&D
• Legal-Aid Program
• Employee Assistance Program (EAP)
• Paid Time Off (PTO) – (11) Federal Holidays
• Training and Development Opportunities

Your application submission will be considered for all potential employment opportunities with Chickasaw Nation Industries (CNI).