Leslie Acosta
Corona,CA
Summary
Immigration Services Officer with the Department of Homeland Security, recognized for great customer service and strong communication skills. Bilingual in Spanish, I excel in prioritizing urgent cases to minimize backlogs. Proficient in data entry, typing and Microsoft Office.
Overview
27
27
years of professional experience
1
1
Certification
Work History
Immigration Services Officer
Department of Homeland Security
08.2012 - 04.2025
- As an adjudication Officer, my duties include working independently on adjudicating various Immigration application for Immigration benefits.
- Conduct thorough system checks and carefully make accurate and quality decisions.
- Communicate effictively to supervisor and other employees/customers when needed. Provide flexible, and responsive services to customers.
- Provided excellent customer service by timely reviewing applications for benefits and writing decision notices to notify the applicant of their decisions.
- Prioritize work and respond in a timely manner to inquiries from the public to minimize any backlog of assigned case loads.
- Streamlined application review processes for quicker turnaround times and improved decision rates.
- Conducted thorough background checks to maintain security and prevent fraud in the immigration system.
- Mentored new officers, sharing expertise and knowledge to develop their skills in immigration services.
- Selected as a sponsor to mentor new employees. I provided assistance and guidance throughout the employees first weeks.
- Maintained detailed records of all cases, ensuring accurate documentation for future reference and compliance with regulations.
- Complete and update daily administrative reports, systems and security reporting requirements in accordance with regulation to ensure compliance.
- Reduced case backlogs by prioritizing urgent cases and optimizing workload distribution among officers.
- Managed complex cases involving humanitarian considerations, completed work assignments that were made in accordance with rules, regulations, policies and procedures.
- Validated immigration documents, and review for any discrepancies.
Immigration Information Officer
Department of Homeland Security
03.2001 - 08.2012
- Provided front line support with information and guidance to the public in person, phone or email related to their case regarding visa types, and status update.
- Assisted individuals in completing their Immigration forms accurately.
- Provided assistance to the public in Spanish language when needed.
- Reviewed application for proper documentation for completeness and correctness before submission.
- Interviewed applicants and gathered basic information.
- Provided and distributed informational documents such as brochures, flyers, and fact sheets and resources.
- Conducted outreach campaigns and events to reach specific populations, for informational purposes.
Immigration Clerk
Department of Homeland Security
03.2000 - 03.2001
- Utilized strong multitasking skills to manage multiple priorities and tasks, ensuring timely completion of each assignment.
- Reduced errors in data entry by carefully inputting information into computer systems with attention to detail.
- Improved customer satisfaction by promptly answering inquiries and providing accurate information.
- Managed incoming calls professionally, directing callers to appropriate personnel or taking detailed messages when necessary.
- Supported administrative staff with timely completion of daily tasks, ensuring smooth office operations.
- Maintained filing system and organized customer documents for easy retrieval of information.
- Processed mail accurately and efficiently, ensuring that all correspondence was distributed to the correct recipients in a timely manner.
Immigration Card Technician
Department of Homeland Security
07.1998 - 03.2000
- Overlooked and maintained the process of printing machinery for a safe working environment by strictly adhering to the production of Permanent Resident Cards.
- Trained new technicians on standard operating procedures, ensuring consistency across the team.
- Performed troubleshooting and diagnosis on malfunctioning printing equipment.
- Completed repairs quickly by leveraging strong diagnostic skills and attention to detail.
- Maintained records of maintenance activities, ensuring compliance of printing machines.
- In charge of counting and making sure the accountability of each card printed.
- Tested systems, noting issues and completing preventive maintenance.
Education
High School Diploma -
Anaheim High School
Anaheim, CA06-1992
Skills
- Typing 50 wpm
- Oral and writing Communication
- Bilingual-Spanish
- Confidentiality
- Date Entry and filing
- Microsoft Word, Excel
- Self Motivated
- Team player
Accomplishments
- Achieved excellence rating in performance appraisal for being nominated for New Employee Sponsorship Program. As a sponsor I provided assistance and guidance in mentoring new employees.
- Acknowledged and commended by supervisor and Section Chief for timely achieving team goals.
- Demonstrated a high level of proficiency in the case managements systems used to adjudicate cases with accuracy and efficiency.
Languages
Spanish
Certification
- Fraud Training - 03-2025
Timeline
Immigration Services Officer
Department of Homeland Security
08.2012 - 04.2025
Immigration Information Officer
Department of Homeland Security
03.2001 - 08.2012
Immigration Clerk
Department of Homeland Security
03.2000 - 03.2001
Immigration Card Technician
Department of Homeland Security
07.1998 - 03.2000
High School Diploma -
Anaheim High School
Similar Profiles
Ahmad PringleAhmad Pringle
Intern at Department of Homeland Security (Homeland Security Investigations)Intern at Department of Homeland Security (Homeland Security Investigations)
Jennifer WendlingJennifer Wendling
IT Cybersecurity Specialist & Program Manager at Department of Homeland Security (DHS) | Cybersecurity and Infrastructure Security Agency (CISA) | Cybersecurity Division (CSD)IT Cybersecurity Specialist & Program Manager at Department of Homeland Security (DHS) | Cybersecurity and Infrastructure Security Agency (CISA) | Cybersecurity Division (CSD)
Scott WigginsScott Wiggins
Branch Chief, Emergency Communications Division at Cybersecurity and Infrastructure Security Agency (CISA), U.S. Department of Homeland SecurityBranch Chief, Emergency Communications Division at Cybersecurity and Infrastructure Security Agency (CISA), U.S. Department of Homeland Security
Kavery Latrease GoldenKavery Latrease Golden
Senior Correspondence Analyst at Department of Homeland Security (DHS), Cybersecurity and Infrastructure Security Agency (CISA)Senior Correspondence Analyst at Department of Homeland Security (DHS), Cybersecurity and Infrastructure Security Agency (CISA)
Yasmin Bailey VelazquezYasmin Bailey Velazquez
Campus Security at Corona-Norco Unified School DistrictCampus Security at Corona-Norco Unified School District