4 results for Senior Web Developer in Hoffman Estates, IL

Software Developer

Chicago, IL
onsite
Permanent
110000 - 130000 USD / Yearly
We are looking for an experienced Software Developer to join our team in Chicago, Illinois. This role involves designing and developing both front-end and back-end applications, ensuring optimal functionality and performance. You will collaborate closely with cross-functional teams to create scalable and user-friendly software solutions. Responsibilities: • Develop and implement responsive web interfaces using modern front-end technologies, ensuring seamless user experiences. • Build and maintain server-side applications using .NET technologies and C# programming language. • Create and optimize database designs, queries, and performance using SQL Server or other relational databases. • Design and develop RESTful APIs to facilitate communication between the front-end and back-end. • Utilize unit testing frameworks, such as NUnit or xUnit, to ensure reliable and maintainable code. • Apply debugging tools and test-driven development practices to identify and resolve software issues effectively. • Manage code collaboration and version control using Git. • Optimize application performance through caching, profiling, and database query enhancements. • Implement DevOps practices, including CI/CD pipelines, to streamline software deployment. • Deploy applications to cloud platforms like Azure or Google Cloud, ensuring scalability and reliability.
2026-03-10T00:00:00Z

Java Back End Developer

Chicago, IL
remote
Temporary
50 - 60.6 USD / Hourly
We are looking for a skilled Back End Developer to join our team on a long-term contract basis in Chicago, Illinois. In this role, you will contribute to the development and enhancement of mobile application back-end services for a large enterprise client. This is an opportunity to work within a collaborative environment alongside front-end and data specialists, focusing on impactful solutions. Responsibilities: • Design, build, and maintain scalable back-end services using Kotlin and Java. • Develop APIs and configure endpoints for production environments. • Collaborate with front-end and data teams to ensure seamless integration across systems. • Utilize modern frameworks and tools such as Ktor, Gradle/Maven, Liquibase, JUnit, and KoTest. • Work within cloud-native environments, leveraging platforms like AWS Elastic Beanstalk, Lambda, and Postgres. • Implement trunk-based development workflows through GitHub to ensure efficient and collaborative coding practices. • Troubleshoot and resolve technical issues to maintain system reliability and performance. • Participate in code reviews and contribute to the continuous improvement of development processes. • Follow best practices for software development to deliver high-quality, maintainable code.
2026-03-06T00:00:00Z

Senior Systems Administrator

Schaumburg, IL
onsite
Temporary
55 - 65 USD / Hourly
We are looking for an experienced Senior Systems Administrator to join our team in Schaumburg, Illinois. In this contract role, you will play a key part in managing and securing system environments while addressing user needs through effective troubleshooting and system administration. This position offers an excellent opportunity to work on a balanced mix of help desk and systems tasks. Responsibilities: • Manage and maintain Active Directory environments, including implementing security measures and optimizing server configurations. • Ensure compliance and security across Microsoft 365 platforms, including Intune, to protect organizational data. • Provide technical support and resolve user issues, handling a range of help desk tasks efficiently. • Administer and maintain Windows Server and Windows 10 systems, ensuring optimal performance and reliability. • Collaborate on the design and implementation of Citrix solutions for improved end-user computing experiences. • Utilize AWS technologies to support cloud-based infrastructure and services. • Develop and enforce group policies and local security policies to enhance system security. • Perform regular system audits and apply necessary updates to maintain compliance and functionality. • Troubleshoot complex technical issues across multiple platforms, ensuring timely resolution. • Assist in creating documentation and guidelines for system operations and user processes.
2026-02-25T00:00:00Z

Cyber Security Engineer

Chicago, IL
onsite
Temporary
51.4615 - 59.587 USD / Hourly
We are looking for an experienced Cyber Security Engineer to join our team on a long-term contract basis. In this hybrid role, based in Chicago, Illinois, you will play a crucial part in safeguarding our systems and network infrastructure against potential threats. This position involves leading incident response activities, mentoring team members, and working with cutting-edge security tools and technologies. Responsibilities: • Lead and manage incident response efforts, including investigations of malware and other security threats. • Oversee configuration and management of firewall technologies such as Checkpoint and Cisco ASA. • Utilize expertise in Azure environments to implement and maintain robust security measures. • Collaborate with team members to mentor and enhance their technical capabilities. • Write and analyze scripts in Python and PowerShell to support security operations. • Ensure compliance with security protocols and maintain configuration management processes. • Monitor and respond to potential vulnerabilities across the network. • Provide strategic recommendations for enhancing cyber defense systems. • Work onsite two days per week to support team operations and security initiatives. • Incorporate security clearance requirements into operational activities.
2026-02-25T00:00:00Z