Top Internships in St. Louis, MO

Finance and accounting intern supporting financial close, reporting, account reconciliations, accounting policy research, process improvement, analytical model validation, and accounting memo updates. The role offers exposure to executive leadership and multiple corporate finance teams in a fully remote environment.

Accounting intern supporting month-end and quarter-end close, journal entries, financial statement preparation, reconciliations, variance analysis, accounting policy research, process improvement, automation, and special projects. The role provides mentorship and practical experience in a primarily virtual corporate accounting environment.

Paid, full-time summer intern supporting billing solutions projects in the telecommunications industry. Responsibilities may include developing agentic AI offer generation, designing and analyzing operational information, communicating findings, and troubleshooting system and data issues in production. The role also includes professional development, networking, mentorship, and cross-functional internship activities.

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.

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 11-week internship supporting the Commercial Services and Enterprise Platform team. The intern will help develop and maintain automated deployment pipelines, support CI/CD practices, manage infrastructure as code, monitor and troubleshoot cloud environments, and optimize systems for scalability, reliability, and security under the guidance of senior engineers.

Paid, full-time software engineering internship supporting Salesforce and CSML development, system integrations, testing, troubleshooting, automation, configuration, technical documentation, and product workflow changes. The intern will contribute to backlog refinement and sprint deliverables under supervision while participating in professional development, mentorship, networking, and cohort activities.

Paid, full-time QA Analyst internship supporting software quality assurance for web and desktop applications. Responsibilities may include developing automation frameworks with Java, Playwright, Selenium, and Python; creating and executing formal test plans; and conducting quality audits across IT functions. Interns also participate in professional development, networking, mentorship, and cross-functional activities.

Paid, full-time 11-week QA internship supporting feature testing, defect validation, regression analysis, test data preparation, documentation, release planning, defect triage, and process improvement. The intern will collaborate with department teams on multiple programs and systems while participating in professional development, mentorship, networking, and cross-functional activities.

Paid, full-time DevOps internship involving production issue triage, health monitoring, automation development, technical problem solving, software subsystem development, and launch support. Interns also participate in mentorship, professional development, networking, community service, and cross-functional projects. Candidates must be rising seniors pursuing a bachelor's degree, maintain at least a 3.0 GPA, and have unrestricted U.S. work authorization without current or future sponsorship needs.

Paid, full-time QA Analyst internship supporting billing-system functional testing. Responsibilities include learning testing tools, developing and executing formal test plans, documenting defects, and assisting with issue resolution. Interns also participate in professional development, networking, mentorship, community service, and presentations. The role is intended for rising seniors pursuing Information Technology, Computer Science, or a related degree.

Paid, full-time 11-week internship supporting billing operations for a telecommunications company. Responsibilities include assisting customer service with billing issues, using billing operations tools, implementing platform guardrails, handling complex billing problems, and coordinating with peer and application vendor teams. The intern will also participate in professional development, networking, mentoring, and cohort activities.

Paid, full-time software engineering internship supporting Netcracker CPQ configuration and development. Responsibilities include analyzing Salesforce and downstream integrations, testing and troubleshooting changes, documenting product configurations and workflows, and assisting with sprint deliverables under supervision. The intern will gain experience with CPQ engineering, pricing logic, order management, and telecommunications systems while participating in mentorship, professional development, and networking activities.

Paid, full-time 11-week internship supporting billing assurance for telecommunications systems. Responsibilities include developing reports to identify billing imbalances, providing technical support for third-party billing systems, analyzing billing-system performance, and supporting adjustments, reporting, interfaces, security, environments, outages, and trouble tickets. Interns also participate in professional development, networking, mentorship, and cross-functional activities.

Paid 11-week Test Engineer internship supporting automated smoke and regression testing, test script updates, post-mortem quality analysis, documentation, data management, test case creation, and defect identification. Interns must be rising seniors pursuing a relevant bachelor’s degree with at least a 3.0 GPA and work authorization without sponsorship.

Paid, full-time 11-week software-focused internship supporting billing initiatives. Responsibilities include developing, modifying, enhancing, and implementing software systems; writing programs to specifications; and conducting unit and integration testing. Interns also participate in professional development, networking, mentorship, and cross-functional activities.

Paid, full-time software engineering internship supporting a payments engineering team. The intern will learn payment processing, participate in the software development lifecycle, practice AI-assisted development, explore monitoring tools, shadow production operations, and join stand-ups and code reviews. The program also includes mentorship, networking, professional development, and cross-functional activities.

Paid, full-time business analyst internship supporting field tools and technician productivity. Responsibilities include gathering and documenting requirements, analyzing operational data, mapping workflows, translating stakeholder needs into technical language, validating and visualizing data with SQL and spreadsheets, and assisting with Agile project tracking. Interns also participate in professional development, networking, mentorship, cross-functional projects, and final presentations.

Paid, full-time 11-week internship supporting billing solutions. Responsibilities include configuring tax and collection settings in the CSG Billing Application, querying databases, interpreting and analyzing data, and assessing business partner operations for improvement opportunities. The role requires a rising senior pursuing a bachelor’s degree in Information Technology or Computer Science, a minimum 3.0 GPA, U.S. work authorization without sponsorship, and local travel to internship events.

Create standard design guidelines and graphic assets to support the marketing team and fellow interns. Work is project-based, guided by a volunteer mentor, and flexible to meet course internship requirements.

Provides supervised work experience in facilities management and equipment support. The intern trains with department personnel, learns functional applications and tools, completes assigned projects and tasks, follows company policies, solves problems, and contributes independently and collaboratively. Assignments relate to the intern’s field of study, particularly chemical or mechanical engineering, transportation logistics, or another quantitative discipline.

Support digital marketing and community efforts in MENA: gather and manage data for content and campaigns, handle community queries on Telegram/Discord, use campaign portals (Task On, Galaxy, Zealy), conduct data research, assist lead generation, monitor campaign metrics, and follow the content plan to improve engagement and ROI.

Provides first-level technical support, assists with hardware and software installation and troubleshooting, maintains IT asset records, monitors network and system performance, manages user accounts and access, supports IT projects and upgrades, and documents procedures and technical records.

Own end-to-end product features: conduct user research, translate insights into specs and user stories, collaborate with engineering/design/growth, analyze product data, support sprint planning/QA/releases, benchmark competitors, and build roadmaps and documentation to launch features.

Run and coordinate qualitative user research: plan and moderate interviews and focus groups, translate goals into discussion guides, produce transcripts and structured insight summaries, and communicate findings to product teams while working remote-first.