Top Tech Jobs & Startup Jobs in Chicago, IL

The Sales Executive develops new customer relationships, maintains existing accounts, meets sales metrics, and manages territory coverage while representing the company at trade shows.

Design and optimize large-scale distributed systems, develop automation tools, support live events, and collaborate in software release cycles while ensuring operational excellence.

The Brand Manager will lead brand narrative and programming, manage brand initiatives, ensure consistency across communications, and enhance Brand awareness and credibility.

As a Senior Software Engineer, you'll develop machine learning models and software applications, translating technical requirements into solutions while ensuring excellence in product delivery.

The Client Finance Manager oversees the financial relationships with clients, managing budgets, forecasts, billing, and collaboration with project teams for profitability.

Perform quantitative analysis for trading strategies, collaborate with traders and quants on problem-solving, and build analytical tools.

Short-term, paid project to export and submit personal financial data from multiple apps. Participants must provide exports from specific financial categories, create two financial artifacts, redact PII on-device using a provided tool, and follow quality and timeline requirements until Final Approval.

Create end-to-end computer-use tasks for AI agents in Linux desktop environments. Design realistic multi-application scenarios, prepare files and instructions, write Python setup and automated scoring scripts, test tasks, and document them. The contract requires daily check-ins, rapid feedback, and availability throughout a three- to four-week engagement. Experience with AI tools, AI/ML projects, Linux VMs, Git, reinforcement learning environments, or computer-use benchmarks is relevant.

Produce 1-5 minute walk-and-talk videos showcasing public locations. Speak naturally on camera, record steady footage with clear audio, follow creative guidelines, submit location details, respect privacy and safety, and deliver videos on schedule as a freelance contractor.

Own and expand a Three.js-based in-browser solar configurator: implement and optimize 3D geometry tools and workflows, build product-facing frontend features, collaborate with backend and computational teams, translate solar physics into usable design tools, define frontend/3D architecture, and ensure performant, stable UX across edge cases.

Own and expand a Three.js/R3F in-browser solar configurator: build and optimize 3D geometry tools and UX, collaborate with backend and simulation teams, ensure performant real-time rendering, and deliver frontend product features across the Aether platform.

Own and expand a Three.js-based in-browser solar configurator, build and optimize 3D geometry and design workflows, implement frontend product features, collaborate with backend and computational teams, and ensure performant, stable, and intuitive 3D UX.

Volunteer generalist supporting nonprofit formation, day-to-day operations, tracking pro bono matters, social media and marketing content, IT and finance support, research, and special projects. Requires proactive, independent work and weekly standups.

Volunteer QA/BA engineer will write and review requirements, create and execute test plans (manual and automated), develop automation scripts, track and report defects and QA metrics, perform regression, liaise with developers/product, and support testing processes for a healthcare appointment platform.

Volunteer marketing specialist to research market fit and competitive landscape, support market-entry evaluation, run research and analytics, help optimize automation and lead-nurturing, assist campaign execution and content creation, and produce monthly KPI reports. Requires weekly standups and minimum 4 hours/week commitment.

Provide Tier 1/2 technical support for e-commerce and internal users of WMS/OMS, manage tickets and SLAs, run client onboarding and training, diagnose web/API issues using observability logs, escalate and document bugs, and support AI agent QA and knowledge base curation.

Design end-to-end technical architecture for an integrated supply-chain e-commerce platform (MES→WMS→OMS→Payments→Invoices). Define modular service architecture, API contracts, tenant isolation (Postgres RLS), deployment IaC (Terraform, Docker, Traefik), observability (Prometheus/Grafana/OpenTelemetry), security (JWT, Vault), and integration of production AI agent frameworks (LangChain/LlamaIndex/AutoGen). Mentor teams and deliver compliant, scalable technical blueprints with target SLOs.

Lead and implement full-stack architectural foundations across frontend, backend, and AI interfaces. Define API-first patterns, select standardized libraries and monorepo practices, produce system diagrams and documentation, enforce code quality and testing, and mentor developers to improve performance, security, and maintainability.