Top Internships in St. Louis, MO

Supports tax consulting teams with corporate tax returns, compliance documents, tax research, regulatory analysis, international and multistate tax planning, tax models, provisions, audits, and data analytics. Collaborates on client projects while learning PwC methodologies and professional practices. The role requires an accounting background, CPA exam eligibility, and strong academic performance, with opportunities to develop tax strategy, compliance, and consulting skills.

Supports PwC tax teams with tax advice, planning, compliance, consolidated tax returns, income tax provisions, tax modeling, transaction integration, and regulatory research. The intern collaborates with clients and colleagues, contributes to corporate tax projects, applies professional standards, and develops skills through feedback and hands-on assignments.

Supports audit teams with financial assessments, auditing methodologies, compliance and governance projects, data quality validation, research, and audit reporting. The intern also assists with cloud engineering and artificial intelligence solutions that improve audit processes, while developing skills through collaboration, client support, feedback, and observation of experienced auditors.

Supports financial statement audits by reviewing financial documents, analyzing financial data and trends, documenting audit findings, evaluating internal controls, and applying GAAP, GAAS, and audit methodologies. Collaborates with audit teams, conducts research, assesses risk factors, and develops foundational knowledge of financial reporting, compliance, and client service.

Supports financial statement audits by reviewing financial documents, analyzing financial data, documenting audit findings, evaluating internal controls, assessing risks, and applying GAAP, GAAS, and audit methodologies. Collaborates with audit teams, conducts research, and develops foundational knowledge of financial reporting, compliance, and client service while learning from experienced auditors.

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

Supports tax consulting teams with corporate tax returns, compliance documents, tax research, international and multistate planning, tax provisions, audits, and client tax models. The intern analyzes regulations, applies data analytics, assists with regulatory compliance strategies, and learns PwC methodologies while collaborating with experienced professionals.

Audit Interns support financial statement audits by reviewing financial documents, analyzing financial data, documenting audit findings, evaluating internal controls, and identifying risk factors. They learn and apply GAAP, GAAS, and PwC audit methodologies while collaborating with experienced auditors and supporting client service initiatives.

Supports financial statement audits by reviewing financial documents, analyzing financial data, documenting audit procedures and findings, evaluating internal controls, and researching accounting matters. The intern learns and applies GAAP, GAAS, and PwC audit methodologies while collaborating with audit teams and observing experienced auditors. The role provides foundational exposure to financial reporting, risk assessment, compliance, and client service.

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.

Supports brand identity and marketing collateral across print, digital, and interactive media. Creates and maintains graphic design content, assists with design audits, conducts industry research, edits photos, expands photography and brand libraries, and manages files and archives. Collaborates with the Lead Designer and Creative Director while developing practical design skills in a remote, part-time internship.

Supports aerospace proposals, production, field, and repair projects by assisting with cost, schedule, risk, forecasting, budgeting, reporting, stakeholder communication, and cross-functional coordination. The intern collaborates with product line leaders and teams across design, analysis, requirements, hardware, testing, supply chain, manufacturing, and suppliers while contributing to process improvements and successful project delivery.

Supports aerospace program and finance activities through industry analysis, financial analysis, budgeting, forecasting, reporting, proposal support, and process improvement. Collaborates with design, analysis, requirements, hardware, testing, supply chain, manufacturing, and product-line teams while helping manage cost, schedules, risks, milestones, and stakeholder communications across development, production, field, and repair projects.

Supports IT solution design and implementation, analyzes cybersecurity protocols and recommends improvements, and collaborates with data science teams to analyze data and generate actionable insights. The internship provides hands-on experience, mentorship, professional development, and exposure to aerospace technology. Candidates must be enrolled in a relevant bachelor's or higher degree program, maintain a 3.0 GPA, and graduate in December 2027 or later.

Summer intern assisting with IT solution design and implementation, supporting cybersecurity initiatives through security protocol analysis, and collaborating with data science teams to analyze data and generate actionable insights. The role offers hands-on experience, mentorship, and professional development within Honeywell Aerospace. Candidates must remain enrolled in a relevant degree program, maintain at least a 3.0 GPA, and meet U.S. person requirements.

Manufacturing and Industrial Engineering Interns support process improvement, lean and continuous improvement initiatives, production process optimization, quality efforts, manufacturing data analysis, and problem-solving. They collaborate with cross-functional teams and help maintain manufacturing documentation and standard operating procedures while gaining hands-on exposure to manufacturing technologies and equipment.

Supports aerospace research and development by assisting with experiments, prototype testing, data collection, analysis, documentation, and troubleshooting. Collaborates with experienced engineers and team members to validate new concepts, improve project outcomes, and advance Honeywell's technology initiatives.

Summer 2027 interns will support IT solution design, cybersecurity initiatives, and data science projects at Honeywell Aerospace. Responsibilities include implementing business-focused IT solutions, analyzing security protocols and recommending improvements, and collaborating with data science teams to generate actionable insights. Interns receive hands-on experience, mentorship, professional development, relocation benefits, and short-term housing when eligible. The role is available at multiple U.S. locations.

Supports aerospace research and development through experiments, prototype testing, data collection, analysis, documentation, troubleshooting, and collaboration with experienced engineers. The intern contributes to validating new concepts and improving innovative aerospace technologies. The role is available at multiple U.S. locations and includes relocation benefits and short-term housing for eligible interns.

Supports manufacturing and industrial engineering projects focused on process improvement, lean principles, waste reduction, production optimization, quality, data analysis, problem-solving, and maintaining manufacturing documentation and standard operating procedures. The intern collaborates with cross-functional teams, gains hands-on exposure to manufacturing technologies and equipment, and receives mentorship and professional development within Honeywell Aerospace.

Supports semiconductor engineering projects through device testing, characterization, data analysis, process development, and optimization. Collaborates with cross-functional teams to troubleshoot technical issues and improve semiconductor design and manufacturing processes. The internship provides hands-on experience with semiconductor technology, engineering tools, and simulation software.

Develop and test AI software using large datasets, Python, JavaScript, and C++. Evaluate algorithms, statistics, and data to improve industrial applications. Collaborate with machine learning and data engineers on end-to-end AI and integration solutions, stay current with AI trends and regulations, and present project progress to leadership and stakeholders.

Develop, test, and integrate AI software for aerospace and industrial applications. Interns will use Python, JavaScript, and C++ to build AI solutions, evaluate data and algorithms, collaborate with machine learning and data engineers, monitor AI trends and regulations, and present progress to leadership and stakeholders.

Supports semiconductor engineering projects through device testing, characterization, data analysis, process development, optimization, and technical troubleshooting. Collaborates with cross-functional engineering teams to develop and improve semiconductor manufacturing and design processes. The intern gains hands-on experience with semiconductor technology, device physics, radiation effects, digital design, and EDA tools while contributing to high-quality semiconductor solutions.

Supports test engineering activities by preparing and executing test plans, gathering and analyzing test data, troubleshooting issues, improving test processes, and documenting results. Collaborates with engineering teams to support product testing, quality assurance, system integration, and delivery of high-quality aerospace products.