Top Tech Jobs & Startup Jobs in Chicago, IL

Administer and support Pivotal GemFire: design, implement, tune performance, manage load balancing and plugins. Work with RDBMS/NoSQL/Hadoop, script in Python/Perl/Java/C++, use XML/HTTP/SOAP, JMX and command-line tools, and optimize querying, indexing and OQL usage. Virtualization and network/distributed tech knowledge is a plus.

Administer and support Pivotal GemFire deployments: design, implement, tune, and troubleshoot GemFire clusters. Integrate with RDBMS/NoSQL/Hadoop, implement load-balancing and plugin interfaces, manage querying, indexing and OQL, and work with XML/HTTP/SOAP, gfc, JMX, VSD, and networking/virtualization concepts.

Design, implement, and support a Greenplum analytic data warehouse. Manage multi-tenant production Greenplum clusters, troubleshoot hardware/software issues, optimize distributed system performance, enforce security and disaster recovery best practices, automate infrastructure with Ansible/IaC, and develop automation or tooling using Perl, Python, Java, Spark, or Bash. Work with cloud IaaS/PaaS environments and complex networking (firewalls, VLANs, load balancers).

Frontend developer responsible for building responsive web applications using Bootstrap, RxJS, HTML5/CSS3 and AngularJS. Write unit tests with TestBed/Jasmine/Karma. Familiarity with PrimeNG, Angular CLI, Webpack or Gulp is a plus. Work in a global delivery environment; occasional travel may be required.

Develop and architect cross-platform and native mobile applications using .NET/C# and Xamarin for iOS, Android, and Windows. Implement REST/SOAP services, participate in design and architecture reviews, follow agile processes with JIRA, use Git/SVN, support large-team enterprise rollouts (MDM), and apply domain knowledge in Energy.

Develop and maintain mobile applications using Xamarin and .NET/C#. Participate in full SDLC, design and architecture reviews, and Agile development. Collaborate with diverse stakeholders, perform project lifecycle and maintenance activities, and apply analytical problem-solving to deliver high-quality WPF and mobile solutions.

Develop and maintain Xamarin.Forms mobile applications in C# and WPF across the full software development lifecycle. Participate in design and architecture reviews, Agile development, project lifecycle activities, and collaborate with diverse stakeholders to deliver and maintain mobile solutions.

Manage, design, implement and support enterprise Cassandra databases for 24/7 applications. Build and maintain multi-datacenter clusters on AWS, perform data modeling, migrations, monitoring, performance tuning, and troubleshooting. Work with Solr, big data systems, and other NoSQL/RDBMS technologies as needed.

Develop and maintain Xamarin.Forms mobile applications using C# and WPF. Participate in full SDLC, design and architecture reviews, Agile development, project lifecycle activities, and mobile app creation and maintenance.

Lead and schedule end-to-end technical implementations of large, complex MindBox or mortgage origination systems. Manage cross-regional, long-term projects, coordinate databases and configurations, drive best practices, and ensure successful client deliveries.