Gnanasiri Lalantha SIRISENAGE
Information Technology
Geneve [Genève (fr)],GE
Summary
Experienced Information Technology with over 15 years of local and international experience, including extensive work within the United Nations system. Skilled in information technology management, database coordination, website management, and technical support. Holds a Bachelor's degree in Computer Science and multiple certifications in graphic designing, animations, and IT training. Known for being multi-task oriented, taking on challenges, and staying current with the latest advancements in IT. Currently pursuing a Master in Cyber Security to further enhance expertise in the field.
Overview
21
21
years of professional experience
11
11
years of post-secondary education
3
3
Languages
Work History
Information Technology Assistant
UNEP/BRS
Genève
1 2014 - Current
- Provided foundational support for application software systems, including email administration and anti-virus/anti-spam measures
- Ensured stable operation of standard application packages, reducing system downtime and enhancing user satisfaction
- Conducted end-user training sessions to improve proficiency and ease of use with systems
- Maintained an electronic inventory of IT equipment, ensuring quick retrieval and optimal resource utilization
- Managed server environments, including VMware and VEEAM backup systems, maintaining efficient operation without interruptions or data loss
- Provided essential IT support for virtual meetings and events, improving setup and execution, boosting overall productivity and participant satisfaction
- Received A+ feedback for IT support during the ICCM5 mission assisting UNEP Chemicals, CITES Cops in Panama and Monamata COPS in Geneva
- Continuously enhanced technical and language skills, pursuing certifications in Microsoft Azure, PowerShell, and IT security
- Improved French language skills through structured courses and language exchange partnerships
- Consistently exceeded performance expectations, contributing significantly to collective goals and maintaining a high level of professionalism.
- Optimized network performance with continuous monitoring and proactive maintenance
- Maintained optimal server performance through continuous monitoring, updates, and capacity planning
- Facilitated smooth software transitions through thorough testing and end-user training sessions
- Contributed to the successful completion of IT projects by collaborating with cross-functional teams
- Researched and identified solutions to technical problems
IT/Database Assistant
UNEP/BRS
Genève
06.2013 - 12.2013
- Provided technical support for data entry, quality checks, and database management
- Developed MS Office templates and macros for automating repetitive tasks
- Produced statistics on attendance, funding status, and administrative documentation
- Assisted in designing workflows, quality control, and document categorization
- Provided operational and maintenance support on customized applications and routine system management
- Supported software development, including security, data integrity, and recovery.
Computer Operation Assistant
United Nations at Geneva
Genève
07.2011 - 12.2012
- Managed help desk functions and provided ongoing technical support
- Configured and installed computers in official UN languages
- Diagnosed and resolved hardware, software, and connectivity issues
- Administered Lotus Notes mail for UNEP, UNCTAD, and UNEP staff.
- Collaborated effectively with cross-functional teams to achieve shared goals in a timely manner.
- Boosted customer satisfaction by promptly addressing inquiries and resolving issues professionally.
Personal Administrative
Permanent Mission of Mauritania to the United Nations
Genève
11.2008 - 05.2011
- Provided administrative and support services, including management and maintenance of computers and networks
- Coordinated and provided administrative support for high-level delegations.
- Kept detailed track of household and maintenance inventory and schedules
Administrative Assistant (Short-term)
Permanent Mission of Sri Lanka to the United Nations
Genève
09.2008 - 09.2008
- Provided administrative support for delegations and staff.
Administrative Assistant (Short-term)
Permanent Mission Of The Kingdom Of Bhutan To The United Nations
Genève
08.2008 - 08.2008
- Provided administrative support and technical support for staff and delegations.
Lecturer
Esoft Online Computer System (Pvt) Ltd
Anuradhapura
04.2007 - 08.2007
- Taught graphics designing, hardware, and software installation
- Provided mentoring and support to students, achieving excellent results.
Marketing Executive/IT Officer
People's Leasing Co. Ltd
Colombo
07.2005 - 08.2007
- Maintained IT infrastructure, marketed leasing products, and developed marketing reports
- Judged the best performer in 2006 & 2007.
- Coordinated trade shows and events to showcase company offerings, generating leads and increasing brand visibility in target markets
Web Designer (Short-term)
Taste of Paradise
Zurich
05.2007 - 06.2007
- Researched and recommended web designs, created templates, logos, brochures, and business cards
- Implemented a new design for the website, increasing page views by 15%.
Branch Manager/Computer Lecturer
Wijaya Graphics (Pvt) Ltd
Galle
01.2003 - 07.2005
- Taught IT modules, managed branch administration, and promoted company products
- Increased student rate by 5% within six months of appointment as Branch Manager.
Education
Master in Cyber Security - Information Technology
University of Business, Innovation, And Sustainability (UBIS)
Geneva,Swityerland 01.2023 - Current
Bachelor of Science in Computer Science - Computer Science
University of Ruhuna
Matara, Sri Lanka 07.2001 - 05.2005
Diploma in Network Administration - Computer Networking
Reytronics Computer Systems (Pvt) Ltd
Colombo, Sri Lanka 04.2005 - 05.2005
Lecturer Training Course - Computer Hardware And Graphic Deshining
Wijaya Graphics (Pvt) Ltd
Colombo, Sri Lanka 06.2002 - 05.2002
Diploma in Digital Animation Course - Multimedia
Wijaya Graphics (Pvt) Ltd
Colombo, Sri Lanka 04.2000 - 05.2000
Diploma in Graphic Designing - Graphic Design
Wijaya Graphics (Pvt) Ltd
Colombo, Sri Lanka 01.2000 - 05.2000
G.C.E. Advanced Level -
Anuradhapura Central College
Anuradhapura, Sri Lanka 08.1997 - 05.1999
G.C.E. Ordinary Level -
Newaththaka Chethiya College
Anuradhapura, Sri Lanka 01.1994 - 05.1997
Personal Information
- Date of Birth: 10/18/80
- Nationality: Sri Lanka
- Marital Status: Married
References
- Mr. Osmany Pereira Gonzalez, Manager, IT and Conference Services, UNEP, osmany.pereira@brsmeas.org, +41 22 917 8194
- Mr. Jose Andres Herrera, Information System/Research Assistant, Joint Inspection Unit, jherrera@unog.ch, +41 22 917 3127
- Nalin Indrasena, Chief, Information Technology Support Section, UNCTAD, nalin.indrasena@unctad.org, +41 22 917 4432
- Mr. Stephan Smith, Manager, United Nations (ICTS), ssmith@unog.ch, +41 22 917 3121
Timeline
Master in Cyber Security - Information Technology
University of Business, Innovation, And Sustainability (UBIS)
01.2023 - Current
IT/Database Assistant
UNEP/BRS
06.2013 - 12.2013
Computer Operation Assistant
United Nations at Geneva
07.2011 - 12.2012
Personal Administrative
Permanent Mission of Mauritania to the United Nations
11.2008 - 05.2011
Administrative Assistant (Short-term)
Permanent Mission of Sri Lanka to the United Nations
09.2008 - 09.2008
Administrative Assistant (Short-term)
Permanent Mission Of The Kingdom Of Bhutan To The United Nations
08.2008 - 08.2008
Web Designer (Short-term)
Taste of Paradise
05.2007 - 06.2007
Lecturer
Esoft Online Computer System (Pvt) Ltd
04.2007 - 08.2007
Marketing Executive/IT Officer
People's Leasing Co. Ltd
07.2005 - 08.2007
Diploma in Network Administration - Computer Networking
Reytronics Computer Systems (Pvt) Ltd
04.2005 - 05.2005
Branch Manager/Computer Lecturer
Wijaya Graphics (Pvt) Ltd
01.2003 - 07.2005
Lecturer Training Course - Computer Hardware And Graphic Deshining
Wijaya Graphics (Pvt) Ltd
06.2002 - 05.2002
Bachelor of Science in Computer Science - Computer Science
University of Ruhuna
07.2001 - 05.2005
Diploma in Digital Animation Course - Multimedia
Wijaya Graphics (Pvt) Ltd
04.2000 - 05.2000
Diploma in Graphic Designing - Graphic Design
Wijaya Graphics (Pvt) Ltd
01.2000 - 05.2000
G.C.E. Advanced Level -
Anuradhapura Central College
08.1997 - 05.1999
G.C.E. Ordinary Level -
Newaththaka Chethiya College
01.1994 - 05.1997
Information Technology Assistant
UNEP/BRS
1 2014 - Current
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