Top Tech Jobs & Startup Jobs in Chicago, IL

Kalles Group invites candidates to propose their ideal roles, emphasizing their skills and vision for collaboration. The focus is on building trust and fostering relationships.

The Senior Associate will provide FP&A services, enhancing processes and results for portfolio companies through data-driven analyses, financial modeling, and collaborative relationships.

The Penetration Tester will conduct web application penetration tests, identify vulnerabilities, and provide remediation guidance to stakeholders. Candidates should have strong expertise in various security domains such as cloud and network security.

As a Senior MuleSoft Engineer, you'll lead the production of MuleSoft integrations, leveraging AI for development, testing, and delivery, managing multiple client engagements autonomously with clear communication on project status.

The Senior Growth Engineer will build web experiences and backend systems to drive growth at Buffer, focusing on features, integrations, and experiments to enhance marketing performance.

Design, implement, and ship end-to-end features across backend services and a React web client for a multi-tenant ERP. Own schema design, migrations respecting row-level security, integrations with platform services, and deliver high-quality, performant code with CI/CD, tests, and code review. Leverage AI coding assistants responsibly and collaborate cross-functionally to evolve shared platform libraries and developer tooling.

Own and optimize high-scale AWS Aurora/MySQL multi-tenant databases (400+ schemas). Tune queries, indexes, InnoDB internals, replica/cluster behavior, ETL pipelines, observability (Datadog, performance_schema), capacity/cost, and mentor engineers. Evaluate GenAI tooling to automate diagnostics and fleet management.

Build AI-native offensive security capabilities: develop AI-assisted vulnerability discovery, exploit validation, reverse-engineering and pen-testing pipelines; design agentic workflows and eval harnesses; perform static/dynamic analysis and authorized live testing; produce reproducible technical reports and improve safety, auditability, and human-in-the-loop controls.

The AI Enablement Lead facilitates AI adoption in enterprises, delivering training programs, coaching sessions, and developing curriculum while engaging closely with customer leadership.

Own full-funnel lifecycle for Payments and Workforce Management partnerships: source and close partners, lead onboarding and technical enablement, create partner collateral and playbooks, and scale programs through governance, training, and performance tracking (MBRs/QBRs).