Top Internships in St. Louis, MO

Paid, full-time software engineering internship supporting workforce management, technician scheduling, and dispatch tools. Interns will build features across web applications, APIs, databases, and cloud services; use AI-assisted development and pattern analysis; and participate in the full software development lifecycle. The program also includes mentorship, professional development, networking, community service, and final presentations.

Paid, full-time software engineering internship supporting the SOC Operational Intelligence team. Responsibilities include developing Python data pipelines and packages, contributing to internal web applications, supporting AI agents and bots, writing automated tests, and improving developer tooling. The intern will work on production software, ETL pipelines, operational automation, and integrations with systems such as Jira, Ivanti, and Datadog while participating in mentorship, networking, professional development, and team projects.

Supports visual design across packaging, print, web, ads, and other brand assets. Adapts templates, follows brand guidelines, resizes and edits images, maintains organized Figma files and Google Drive folders, and exports production-ready digital and print assets. The intern incorporates feedback, performs QA revisions, gathers visual inspiration, and collaborates with designers while developing foundational skills in a fast-paced creative environment.

Create social media content for financial services brands, including videos, photos, graphics, and Instagram Stories. Identify industry trends, competitors, and viral content; assist with content scheduling in Vista Social; and compile social media performance reports. The intern will collaborate with the marketing team, adapt content to brand voice, and support revenue-driving engagement across multiple platforms.

Supports public relations and podcast production for the Gundry MD brand. Responsibilities include drafting press releases, podcast ads, show notes, blog posts, social captions, and emails; researching health and wellness trends; scheduling social content; supporting ManyChat automations; creating Canva graphics; compiling monthly media reports; and assisting PR and podcast teams.

Supports cross-channel marketing attribution and influence modeling by documenting data sources, defining business rules, mapping and normalizing interaction data, testing reporting prototypes, and recommending implementation steps. The intern also assists with AWS marketing data organization, segmentation research, data hygiene, process documentation, and stakeholder communications. The role requires analytical thinking, thorough documentation, clear communication, and collaboration across marketing and technical teams.

Supports day-to-day residential property operations through property inspections, resident and vendor communication, leasing assistance, administrative and financial reporting, resident events, maintenance coordination, and site upkeep. Works with property management leadership while gaining experience in leasing, resident retention, property inspections, and operational processes.

Supports Girl Scouts’ cookie and seasonal product programs through inventory management, product distribution, rewards fulfillment, and preparation of cookie booth marketing kits. The intern will learn product movement systems, project management, cross-functional collaboration, and nonprofit volunteer support while working approximately 10–15 hours per week in the Maryland Heights office.

Supports program evaluation through survey administration, data entry, analysis, data hygiene, process mapping, and research into data management best practices. The intern will collaborate with cross-functional teams, help document data workflows, and gain experience in project planning, evaluation, and nonprofit operations. This is a hybrid role requiring mostly on-site work, approximately 20 hours per week, and may qualify for college credit.

Supports active construction projects by assisting with submittals, shop drawings, RFI logs, schedules, status reports, meeting minutes, project documentation, closeout activities, warranty and O&M manuals, estimating, and preconstruction. Attends project meetings and collaborates with project managers and field teams while developing construction project management, communication, organizational, and technical skills.

Supports commercial real estate portfolio services through research, data analysis, client service, operational processes, issue resolution, reporting, project coordination, and special projects. The intern collaborates with managers and peers, participates in mentorship and professional development, and delivers a capstone presentation to leadership.

Supports internal tax operations by organizing, scanning, tracking, routing, and processing client tax documents. Assists with assembling tax returns, e-filing, preparing informational tax documents, meeting government deadlines, and providing general operational support. The role requires a bachelor's degree in progress, proficiency with Microsoft Windows and Office, reliable transportation, and willingness to travel to client sites.

Supports process control system integration projects under supervision, including PLC and HMI programming, configuration, testing, and commissioning. Performs assigned project tasks within scope, schedule, and budget constraints while following safety and quality standards. The intern also learns automation best practices, electrical fundamentals, Allen-Bradley products, and emerging AI-enabled tools for improving workflows, troubleshooting, and system performance.

Provides entry-level IT help desk support for Windows, Microsoft 365, devices, accounts, peripherals, and branch networking. Responsibilities include ticket troubleshooting and documentation, laptop deployment with Intune and Autopilot, account administration, inventory maintenance, cabling and Meraki support, knowledge-base updates, and escalation. The intern will complete and present a small IT project while developing experience in enterprise systems administration, networking, security practices, and professional user support.

Supports railroad track and civil engineering projects through alignment and profile design, drainage and earthwork design, surveying, track geometry analysis, engineering calculations, cost estimating, documentation, and construction submittal review. Uses AutoCAD Civil 3D, MicroStation, and OpenRail while assisting project engineers and managers with freight, commuter, and transit deliverables. Conducts site visits and collaborates with experienced professionals.

Participate in a 12-week technical sales internship supporting HVAC, building automation, equipment, controls, and service offerings. Work with sales account managers and customers, attend sales and service meetings, learn system design and application, and gain hands-on exposure to the sales engineering process. Interns collaborate with mentors and may pursue Trane Technologies’ Graduate Training Program after graduation.

Paid, full-time 11-week internship supporting billing solutions and telecommunications technology initiatives. Responsibilities include using AI to improve customer experience processes, analyzing business partner operations for improvement opportunities, and translating business requirements into functional specifications for technology platforms. Interns also participate in professional development, networking, mentorship, cross-functional projects, and presentations.

Supports accounting, tax, accounts receivable, accounts payable, internal audit, financial reporting, and financial analysis functions. The intern will assist finance specialists, apply accounting coursework to corporate operations, and gain broad experience in a complex finance and accounting environment during a full-time summer 2027 internship.

Actuarial Interns support reserving, pricing, and risk management projects; research and analyze actuarial concepts; build, review, and maintain models; communicate findings to leaders and teams; and collaborate across the enterprise. Interns receive mentorship while applying mathematics, statistics, finance, and insurance principles to real-world business problems. The role is part-time during spring 2027 and full-time during summer 2027, with on-site work in Saint Louis, Missouri.

Supports assurance document processing, proofreading, corrections, assembly, binding, and quality-control workflows. Assists with Microsoft Word and Excel deliverables, proposals, office administration, and special projects. The intern collaborates across offices, manages multiple priorities, communicates effectively, and receives paid training and exposure to auditing and public accounting. This in-person internship requires at least 15 hours weekly from January 27 through April 30.

Supports technology modernization initiatives through IVR and contact center system testing, defect documentation and validation, reporting requirements, data analysis, and business process documentation. Collaborates with business and technology teams during SIT and UAT, participates in defect reviews and issue investigations, and contributes to project communications and reporting activities.

Support the Customer Experience Support department by learning its processes, identifying inefficiencies, reducing manual work, creating workload and performance reporting, and developing process-improvement recommendations. Collaborate with associates, leaders, and internal or external partners to improve accuracy and efficiency in a high-volume environment. This is a full-time, fully onsite summer internship for students enrolled in a degree program.

Part-time, work-from-home Accounting Intern supporting Accounts Receivable and Cash Applications. Responsibilities include recording and entering customer payments, matching payments to invoices, researching discrepancies, and collaborating with internal teams on deductions, overpayments, short payments, and missing remittance details. The role is intended for an Accounting or Finance major and requires accuracy, communication, collaboration, and proficiency with Microsoft Excel and Outlook.

Business Strategy Intern supporting NMI’s Revenue Acceleration team through pricing, monetization, competitive, and fintech market analysis. The intern will use AI tools, build financial models and business cases, create competitive tracking assets, develop executive-ready presentations, and present strategic recommendations to leadership. This is an 11–13 week remote summer internship for students returning to school after the program.

Remote, unpaid advertising internship for students from January through June 2027. Responsibilities include researching potential advertisers, pitching advertising and sponsorship packages, communicating with agencies and business decision-makers, producing digital trend reports, and supporting SEO, social media, Google Analytics, and keyword research initiatives. Interns commit to at least 15 hours weekly and may earn college credit.