Intelligent lighting engineers set up, prepare, check and maintain digital and automated lighting equipment in order to provide optimal lighting quality for a live performance. They cooperate with road crew to unload, set up and operate lighting equipment and instruments.

Intercultural communication consultants specialise in social interaction between parties of different cultures, advise organisations on international interactions in order to optimise their performance, and facilitiate cooperation and positive interaction with organisations and individuals from other cultures.

Interior architects create plans of the interior of a home, building or other structure. They determine the specifications and distribution of the space. Interior architects combine an understanding of space with a sense for aesthetics in order to create a harmonious interior design. They draw architectural drawings using computer-aided equipment and software, or using conventional methods like paper and pen.

Interior designers design or renovate of internal spaces, including structural alterations, fixtures and fittings, lighting and colour schemes, furnishings. They combine the efficient and functional use of space with an understanding of aesthetics.

Interior landscapers design, install, manage and maintain indoor green spaces to customer requirements.

Interior planners help clients in planning their interiors for commercial and private use.

Intermodal logistics managers manage and oversee commercial and operational aspects of intermodal logistics for an organisation.

International forwarding operations coordinators implement and monitor international forwarding operations by resolving problems and taking decisions related to transport and support activities. They deal with administrative burdens associated with international operations such as regulations in different national contexts for imports and exports. They provide business support, project coordination, evaluation and management of current systems and international supply chain management and procedures as required.

International relations officers ensure the development of cooperation between international public organisations and governments. They facilitate communication between their organisation and foreign organisations and develop collaboration strategies, promoting a collaborative relationship beneficial for both parties.

International student exchange coordinators lead the entire process of an international exchange study for the exchange students. They manage the students' applications and admissions, arrange accommodation, be it on a college or university campus or with guest families, and handle all the administration regarding these activities, including the student's grades and official departing. They function as guides for the (young) international students through their cultural adjustment.

Interpretation agency managers oversee operations in the delivery of interpretation services. They coordinate the efforts of a team of interpreters who understand and convert spoken communication from one language to another. They ensure the quality of the service and the administration of the interpretation agency.

Interpreters understand and convert spoken communication from one language to another. They retain considerable amounts of information, often with the aid of note-taking, and communicate it immediately after whilst keeping the nuances and stress of the message in the recipient language.

Inventory coordinators keep track of products stored in warehouses for transport to stores, wholesalers and individual customers. They inspect the inventory and maintain paperwork and documents.

Investment advisers are professionals who offer transparent advice by recommending suitable solutions on financial matters to their clients. They advise on investing pension or free funds in securities such as stocks, bonds, mutual funds and exchange-traded funds to customers. Investment advisers serve individuals, households, families and owners of small companies.

Investment analysts undertake research to make informed recommendations to fund managers. They research investments globally but depending on the nature and field of their employer they can specialise in fields like retail, infrastructure, energy, banking and financial services. They focus on financial and economical information such as the political and economic developments that can impact financial markets, the financial performance of the target companies and use the interpretation of data from different sources to understand how it affects investment decision making.

Investment clerks assist with the administration of investments such as stocks, bonds or other securities and perform general clerical duties in the investment sector of a financial company.

Investment fund management assistants provide clients with financial planning advice on financial products and serve as the main contact point for new and old clients. They assist and perform preparatory work in the creation and administration of funds and help with the implementation of fund management decisions made by the portfolio or fund manager.

Investment fund managers implement and monitor the investment strategy of a fund. They manage the fund's portfolio trading activities and supervise the financial, securities, and investment analysts in charge to perform research on the investments and then make buying and selling recommendations. They make decisions on when to buy or sell the assets included in a portfolio. This manager works in a variety of settings such as banks, companies and stockbroking companies; working closely with the investment analyst. This occupation manages strategy and does not always work with relations between shareholders or investors.

Investment managers administer the portfolio of investments that a company has. They perform close follow up of the investments looking for the most profitable solutions represented in financial products or securities. They analyse behaviour in financial markets, interests rates, and the companies' position in order to advise on risks and profitability for the client.

Investor relations managers disseminate the investment strategy of the company and monitor the reactions of the investment community towards it. They use marketing, financial, communications, and security law expertise to ensure transparent communication to the larger community. They respond to inquiries from shareholders and investors in relation to the company's financial stability, stocks, or corporate policies.

Irrigation system installers build the necessary infrastructure for irrigation of soil, usually for agricultural purposes. They may be specialised in one or more of the various types of stationary irrigation systems.

Irrigation technicians specialise in the installation, maintenance and repair of sprinklers, pipes and other irrigation systems. They operate machinery used for irrigation systems handling, and ensure compliance with environmental standards.