Senior Software Engineer

Requisition # 909 Assignment View Sector Los Angeles County Contractor's Work Location ISD CAB-Internal Services Department (Downey) Position Title Senior Software Engineer Labor Category Information Technology Job Category Miscellaneous/Niche/Other Number of Positions 1 Job Level 1 Submittal allowed per staffing agency 2 Priority Submittals allowed for this Requisition 50 Assignment Type Temporary Is a Livescan Required for Position? No Is this role located on-site, hybrid, or remote? Hybrid Work Location Address 9150 E. Imperial Hwy., Downey, CA, 90242 Assignment Details Target Start Date 09/08/2026 Target End Date 09/07/2027 Shift Standard Work Schedule Standard Tentative Shift Start Time 8:00 AM Tentative Shift End Time 5:00 PM Staffing Agency NTE (Not-to-Exceed) Bill Rate $ 146.49 Rate Unit Hour Estimated Regular Hours/Week 40.00 Travel Required Yes Estimated OT Hours/Week Travel % 25 Travel Description(Domestic/International) Off-Site offices Security Clearance None Position Details Background Checks Yes Position Description Miscellaneous/Niche/Other Skills Required Miscellaneous/Niche/Other Additional Skills Required The Sr. Software Engineer works directly under the direction of an IT Manager, IT supervisor, and / or user agency personnel and is responsible for leading the enhancement, support and ongoing development of multiple applications used by the County to support up to hundreds of users. The Sr. Software Engineer will lead application support for multiple applications, project management for stakeholders and managers, and work cohesively within multiple teams. The Sr. Software Engineer will have deep technical expertise in application development areas such as object-oriented programing, client-side scripting, and database development. The Sr. Software Engineer will be able to project manage multiple development projects using Agile methodology. Development - Proficient in languages and frameworks like, but not limited to ( C#, ASP.NET Core, and .NET 8+, Entity Framework, Java, Spring Boot, Hibernate, Ruby, Ruby-On-Rails, Ruby Gems, Rails Api, web sockets); Proficient in client-side scripting JavaScript, jQuery, Angular, or React; Hands-on experience with database development; Strong knowledge of RESTful API design, development, and integration; and experience building and maintaining secure, scalable web applications. Agile Project Management - Hands-on experience with project management electronic boards (Azure Dev-ops or Jira); Experience navigating and mediating between conflicting priorities; Ability to write user stories and working with; and Reporting skills on industry standard metrics and key performance indicators such as cycle time, lead time, burn down, etc. Database & ORM - Experience with designing, querying, and optimizing relational databases and ability to design and manage complex relational database schemas. Application Migration- Ability to analyze existing codebases, map data models, and execute phased migration strategies and experience ensuring feature parity and data integrity throughout migration projects. Containerization & DevOps - Experience with containerization technologies (Open-Shift, Docker, Kubernetes, or similar); Familiarity with CI/CD pipeline setup and management; and Source control proficiency with Git, including branching strategies and code reviews. General – ability to work independently and with a team; able to drive tasks from conception to completion; Excellent problem-solving skills and attention to detail; Strong verbal and written communication skills for both technical and non-technical audiences; and Commitment to continuous learning and staying current with evolving development technologies. Experience Required Miscellaneous/ Niche/ Other Additional Experience Required This classification requires at least 5 years of experience within the last 7 years in application development in object-oriented development (i.e. .NET, Java, Ruby-on-Rails), Client-Side Scripting frameworks (JavaScript, React, jQuery), Mobile Development (.NET Maui, React Native), Apple Development (Swift), Relational Databases (SQL Server, MySQL, Oracle DB). At least 1 year of professional experience with Git version control, proficient and worked within defined branching strategies. At least 2 years developing, enhancing, and supporting business intelligence reports (Power BI, Crystal Reports, or Cognos). At least 3+ years within the last 7 years delivering project features within agile sprints, demonstrating project work to stakeholders, facilitating Agile project management ceremonies such as standups, backlog grooming, and sprint retrospectives. At least 1 year of providing on-site technical support for custom-off-the-shelf systems (COTS). Education Required Miscellaneous/ Niche/ Other Additional Education Required This classification requires possession of a bachelor’s degree in computer science or information technology related degree. Additional qualifying experience may be substituted for the required education on a year-for-year basis. Additional Information Candidates must have a valid California Class C Driver License with no restrictions. Travel may be required to provide technical support and conduct on-site requirements gathering with end users.