Jobs in Lake Forest, California, United States

Bal Seal Engineering IT Help Desk provides fast, high-quality technical support to employees in a manufacturing environment. The Help Desk Analyst troubleshoots hardware, software and network issues, configures and manages company devices, and handles onboarding and offboarding of IT assets.

Quantum Fuel Systems, based in Lake Forest, California, is engineering alternative fuel solutions including CNG, RNG, and hydrogen storage systems and transport trailers. The Senior Mechanical Engineer - Fuel Systems will develop new products, improve existing designs, and support system design activities for high-pressure gaseous fuel components.

Emerging Technology function at AVEVA shapes future product strategy by scouting, evaluating, and prioritizing breakthrough technologies. The Distinguished Technology Strategist partners with research, product, architecture, and strategy teams to translate technical insights into actionable recommendations and investment priorities.

Retail Service Specialist at O’Reilly Automotive supports Store Manager and Assistant Managers in sales, customer service, store appearance, and operations. Responsibilities include leading team members, supervising showroom service programs (Related sales, Hi5, Rock the Call, Never Say No, Rock the Lot), answering phones, processing buy online/ship to store and transfer orders, handling special orders and outside purchases, managing returns and exchanges, invoicing merchandise and warranties, c

The Preschool Center Housekeeper at Children's Courtyard in Lake Forest, CA, supports the childcare center's mission of keeping children healthy and safe by maintaining a clean, organized environment where kids can learn and grow. Day-to-day work centers on housekeeping and cleanliness duties that enable the center's operations.

CellCarta is seeking an Associate Project Manager for its Lake Forest, CA site to support multiple (pre-)clinical trial projects within its precision medicine laboratory services division. Day-to-day, you will partner with Senior PMs to plan, coordinate, and execute studies from award initiation to closeout, coordinate lab operations and slide QC, manage scope/change updates, deliver client updates, and maintain compliant documentation and data transfers.

Chess Wizards is seeking enthusiastic, reliable part-time instructors for its after-school enrichment program in Lake Forest, CA. Instructors lead fun, interactive chess classes for 10–15 elementary students, using a structured curriculum to teach fundamentals, promote good sportsmanship, and encourage problem-solving. The role involves traveling to various local school sites on weekday afternoons (2:00 PM–5:00 PM), with onboarding and training during the summer and active teaching in the fall.

Field Sales Representatives at AT&T deliver customized, white-glove experiences directly in customers' homes across Orange County, California locations including Tustin, Santa Ana, San Clemente, Cypress, Lake Forest, Anaheim, Irvine, Fullerton, and Westminster. You'll work independently to conduct scheduled appointments, offering hands-on demos, Wi-Fi assessments, tech delivery, and issue resolution while connecting customers to the latest AT&T technology and services.

The Account Manager - Commercial Lines role at Insurance Office of America manages an assigned book of business to ensure account retention and support new business, with a generalist and/or construction focus. Day-to-day duties include coordinating administrative and customer service activities, resolving complex issues, managing policy expirations and renewals, and maintaining agency management systems.

Service Center Baker Ranch team at Caliber Collision estimates vehicle damage and manages the repair process from initial estimate to final delivery. The Collision Estimator writes detailed estimates, conducts process reviews, checks in customer vehicles, finalizes paperwork, and communicates status updates while ensuring safety and quality standards.

The Revenue Cycle Operations Analyst at Clarvida supports California Operations by analyzing and improving front-end revenue cycle performance across multiple behavioral health programs. Day-to-day, the role interprets Medi-Cal, Medi-Medi, commercial payer, authorization, and Share of Cost requirements, develops revenue cycle procedures and KPIs, reviews billing and financial clearance trends, and provides subject matter expertise on EHR and billing platforms such as IRIS and Avatar.

Home Care team at Cambrian Homecare provides compassionate support to seniors, ensuring safety and comfort in their homes. Caregivers assist with personal care, companionship, meal preparation, medication reminders, errands, and light housekeeping while coordinating with a 24/7 supportive office team.

Provide high‑level customer service to retail and installer customers, manage cash drawer, process returns, maintain inventory, operate store test equipment, assist with deliveries, and support store management tasks.

Integrated Polymer Solutions seeks a Sales & Marketing Intern in Lake Forest, CA to support market research and data accuracy initiatives. The role involves assisting sales and marketing teams with process efficiency and customer projects.

The Account Manager Associate - Commercial Lines role at Insurance Office of America (IOA) supports the account team, Producer, and assigned accounts across California, with a strong preference for the Los Angeles County area. Day-to-day, the associate provides administrative and customer service support, independently resolves moderately complex customer service problems, and manages smaller or less complex accounts with minimal direction.

Caliber Collision's Service Center at Baker Ranch in Lake Forest, CA is hiring a full-time Auto Shop Helper to support daily production operations. The role performs all-purpose duties such as maintaining housekeeping in the production area, emptying waste cans, sweeping floors, disposing of unwanted parts, cleaning spray booths, organizing tools and equipment, tending to parking lots and grounds, and handling minor equipment and building maintenance/repairs.

Tharaldson Hospitality Management is hiring an Assistant General Manager (Hotel) for TownePlace Suites by Marriott in Lake Forest, CA. The role partners with the General Manager to oversee daily hotel operations, drive guest satisfaction and financial performance, and develop high-performing teams across all departments. The position offers a flexible schedule including evenings, weekends, and holidays as business demands.

Software Delivery Lead on Alcon's Medical Device Software organization, responsible for delivery predictability, readiness discipline, and execution orchestration of complex, embedded, regulated software programs. The role plans and tracks delivery, defines readiness criteria, manages scope, resource and budget trade‑offs, and coordinates cross‑functional dependencies across software, hardware, quality and regulatory teams.

Saddleback Church Internship Program provides vocational ministry training for college students and recent graduates. Interns gain hands‑on experience serving alongside pastors and staff, developing ministry leadership skills in a supportive church environment.

Albertsons Companies is hiring a Front End Entry Level associate at its Lake Forest, CA store. In this part-time retail role, you will work on the store front end as a courtesy clerk, customer service associate, or cashier, helping customers, supporting fellow associates, and contributing to a welcoming shopping experience.