Top Internships in Milwaukee, WI

Audit Interns support financial statement audits by reviewing financial documents, analyzing financial data, documenting procedures and findings, evaluating internal controls, and applying GAAP, GAAS, and audit methodologies. They collaborate with audit teams, research accounting topics, assess risks, monitor financial trends, and learn professional client-service practices while developing foundational audit and assurance skills.

Supports financial statement audits through document review, financial data analysis, audit documentation, internal control evaluation, risk assessment, and compliance with GAAP and GAAS. Collaborates with audit teams, researches accounting topics, applies PwC methodologies, and develops foundational knowledge of audit practices and client service.

Supports tax consulting teams with corporate tax returns, compliance documents, tax research, international and multistate tax planning, tax modeling, provisions, audits, and regulatory compliance strategies. The intern analyzes tax regulations, applies data analytics to identify optimization opportunities, collaborates on client projects, and develops professional skills while learning PwC methodologies.

Supports tax consulting teams with corporate tax returns, compliance documents, tax research, international and multistate tax planning, tax modeling, provisions, audits, and regulatory compliance strategies. The intern analyzes tax regulations and data to identify optimization opportunities while learning PwC methodologies and collaborating with experienced professionals.

Support tax consulting teams with corporate tax returns, compliance documents, regulatory research, international and multistate tax planning, tax modeling, audits, and tax provisions. Apply data analytics and AI to identify optimization opportunities, minimize risks, and improve efficiency. Collaborate with client-service teams while developing tax research, analytical, communication, and professional skills.

Supports AI engineering initiatives at Vantor, contributing to spatial intelligence solutions and helping develop technologies that enable customers to understand current and future conditions. The posting provides limited role-specific responsibilities but emphasizes problem-solving, innovation, collaboration, and mission-focused work. Applicants must qualify as a U.S. Person under applicable export control and ITAR requirements.

Supports AI safety, robotics, cybersecurity, Physical AI, and advanced mobility projects. Conducts research on standards, regulations, and emerging technologies; assists with safety assurance and consulting activities; develops reports, presentations, workshops, and client deliverables; and contributes to AI safety, cybersecurity, robotics, and technology capabilities.

Mission Lead Interns embed with defense customers, identify mission problems, configure and test AI workflows, troubleshoot deployments, onboard users, demonstrate mission impact, and expand customer relationships. The role requires independent execution in ambiguous environments, close coordination with Product, Engineering, Mission, Security, and Operations teams, frequent customer-site travel, and a current TS/SCI clearance.

Software Engineering Interns will build and ship high-impact software projects across product, infrastructure, customer experience, mobile, and security teams. Responsibilities include designing, developing, testing, and deploying features; collaborating with multidisciplinary teams; participating in agile development and prototyping; applying user-centered design; and learning through mentorship, technical talks, and feedback. The internship is virtual, full-time, and lasts 12 weeks during Summer 2027.

Supports the planning department under a Planner or Project Manager with technical duties, documentation, presentations, mapping, planning, and public engagement activities. May work in the field and contribute to transportation and urban mobility projects. Requires progress toward a bachelor’s or master’s degree in urban planning or urban design, strong communication and organizational skills, and Microsoft Office proficiency. Mapping and design software experience is preferred.

Supports industrial and graphic design projects across product development, innovation, and marketing. Assists with concept development, product visualization, prototypes, 3D models, VBL documentation, and brand strategy execution. Collaborates with project teams to deliver high-quality designs within project timelines and budgets while gaining practical experience in bringing concepts to production.

Eight-to-twelve-week remote consulting internship supporting clients with digital transformation, innovation, manufacturing, supply chain, cybersecurity, data science, and enterprise technology initiatives. Responsibilities include advising clients, developing deliverables, researching solutions, supporting business development, collaborating with stakeholders, and contributing to internal initiatives. Travel of up to 50% is required, and successful interns may be considered for a full-time analyst role.

Supports product management through competitive benchmarking, market research, product documentation updates, launch coordination, marketing collateral, sales enablement, and cross-functional product lifecycle initiatives. The intern collaborates with engineering, marketing, sales, technical support, and product management teams while gaining practical experience in product operations and strategy.

Supports construction project management, superintendent, and preconstruction teams through subcontractor coordination, document control, progress reporting, drawing and trade coordination, quality control, RFIs, submittals, bidding follow-up, meetings, and project closeout activities. Provides hands-on field and office experience for students pursuing Construction Management degrees.

Supports Optima marketing, consumer insights, product development, and launch initiatives. Responsibilities include coordinating campaigns and marketing assets, researching consumers and competitors, analyzing voice-of-customer feedback, supporting product concept evaluation and commercialization, and preparing competitive recommendations. Partners with marketing, product management, sales, engineering, and agency teams in a hybrid summer internship.

Paid accounting internship supporting tax, audit, assurance, and advisory engagements. Responsibilities include preparing tax returns and workpapers, assisting with audits and financial statements, calculating depreciation, posting journal entries, researching tax issues, preparing financial reports, and developing Excel spreadsheets for valuations and analytics. Interns receive training, mentorship, and supervised client exposure.

Support the development of residential solar and energy-storage products through electrical test setup design, long-term testing, and functional and performance testing of components, subsystems, and complete systems. The intern will work with power conversion, high-voltage systems, inverters, PV optimizers, electronics, IoT devices, firmware, and battery management systems while improving testing processes.

Finance intern supporting the Cost Accounting team with product costing, purchase price variance analysis, labor reporting, cycle count and scrap adjustment reviews, SOX compliance, and month-end close activities. The role also includes reporting, cost roll analysis, data accuracy reviews, and continuous improvement projects within a large public company.

Supports mechanical product development for transfer switches and generator products under engineer supervision. Creates 2D cross sections, 3D CAD models, drawings, tolerance stack-ups, templates, and bills of materials. Assists with design validation, testing, product specifications, process validation, cost and reliability analysis, and manufacturability optimization. Collaborates with manufacturing partners and cross-functional teams while developing technical skills through structured assignments.

Support and develop backend applications, APIs, data integrations, and managed file transfers across digital systems. Use Azure tools, containers, Kubernetes, Oracle SOA, and Informatica while monitoring application errors and troubleshooting integration issues. This year-round internship provides mentorship and hands-on experience with cloud integration, service security, and digital platform management.

Supports audit engagements by learning audit processes, analyzing and testing financial statement elements, building client relationships, collaborating with team members, and contributing to accounting projects. The internship runs full-time from January through April and is intended for college students pursuing accounting or auditing studies and interested in CPA credentials.

Supply chain intern supporting ABB operations through cross-functional collaboration, project coordination, customer-focused solution development, meetings, brainstorming, and task management. The role provides practical experience while contributing to timely project completion and operational effectiveness. Candidates must be enrolled in a relevant bachelor’s program, have reliable transportation to the hybrid New Berlin worksite, and be authorized to work in the United States without sponsorship.

Supports converting and production operations at a corrugated packaging plant by following safety procedures, relaying adjustment needs, assisting team members, submitting maintenance work orders, and adhering to production schedules. The intern is expected to bring creativity, attention to detail, analytical ability, and a willingness to work onsite while pursuing a paper, packaging, or related major.

Year-round mechanical engineering intern supporting maintenance projects at a steel processing plant. Responsibilities include machine and equipment design, plant layout improvements, continuous improvement initiatives, safety and environmental considerations, and collaboration with engineering and maintenance teams from design through implementation. The role is part-time during the academic year and full-time in summer, with hands-on experience in SolidWorks, AutoCAD, Microsoft Office, project management, and problem-solving.

Supports the Customer Experience department by streamlining processes, coordinating cross-functional projects, executing deliverables, maintaining recurring compliance-related work, and fostering collaboration across Services, Success, and Support teams. The intern will receive onboarding, mentorship, routine check-ins, and exposure to multiple teams and stakeholders while working remotely during a 14–16-week term.