325 IT Administrator jobs in Thailand

• Ensure the availability, scalability, and performance of all IT Networking systems to meet business demands and service level agreements.
• Implement robust monitoring solutions to proactively identify and resolve network issues, minimizing downtime and disruptions.
• Troubleshooting efforts for complex technical problems, coordinating with relevant teams for prompt resolutions.
• Collaborate with other departments and stakeholders to plan and execute IT projects, ensuring timely delivery and successful implementation.
• Designing, implementing, and configuring computer networks (LANs, WANs, Internet connectivity)
• Monitoring network performance and troubleshooting issues
• Implementing network security measures (firewalls, access controls, software updates)
• Installing, configuring, and maintaining network software and hardware
• Documenting network configurations and policies.

Do you aspire for a rewarding career that lets you do more and achieve more? Unleash your full potential at work with TDCX, an award-winning and fast-growing BPO company.

Work with the world's most loved brands and be with awesome, diverse people. Be home, belong, and start your journey to #BeMore Top Reasons to work with TDCX

Attractive remuneration, great perks, and performance incentives

Comprehensive medical, insurance, or social security coverage

World-class workspaces

Engaging activities and recognition programs

Strong learning and development plans for your career growth

Positive culture for you to #BeMore at work

Easy to locate area with direct access to public transport

Flexible working arrangements

Be coached and mentored by experts in your field

Join a global company, winner of hundreds of industry awards

What is your mission?

Lead the administration, maintenance, and optimization of the company's network infrastructure (LAN, WAN, WLAN, Firewalls, VPN, Load Balancers).

Oversee daily operations, ensuring network availability, stability, and security across multiple sites.

Proactively monitor and analyze network performance, identifying and resolving complex issues.

Perform advanced troubleshooting and escalation support for incidents that cannot be resolved by junior administrators.

Plan and execute network upgrades, configuration changes, and security enhancements in coordination with the IT Infrastructure and Security teams.

Develop and enforce network policies, standards, and procedures to ensure compliance with IT governance and security frameworks (ISO 27001, SOC 2, etc.).

Maintain accurate network documentation including topology diagrams, configuration baselines, and access control records.

Mentor and provide technical guidance to junior network and IT staff.

Work closely with vendors and service providers for advanced support and project delivery.

Who are we looking for?

Bachelor's degree in Computer Engineering, Computer Science, Information Technology, or related field.

5+ years of experience in network administration or a related IT infrastructure role, with at least 2 years in a senior or lead capacity.

Strong expertise in networking technologies including TCP/IP, Routing , Switching, VLANs, VPN, Wireless, and QoS.

Hands-on experience with enterprise-grade network devices such as Cisco, Fortinet, Palo Alto, FirePower, ForcePoint, or equivalent.

Solid understanding of network security principles, firewall management, IDS/IPS, and access control.

Proficiency with monitoring and diagnostic tools (e.g., SolarWinds, PRTG, Nagios, Wireshark).

Certifications such as CCNA, CCNP, Fortinet NSE, Palo Alto PCNSE, or CompTIA Security+ are highly desirable.

Strong leadership, problem-solving, and communication skills with the ability to work across teams and present to management.

Experience in multi-site enterprise or data center environments is a plus.

Who is TDCX?

Singapore-based TDCX is a global business process outsourcing (BPO) leader, offering advanced customer experience (CX) solutions, sales and digital marketing services, and content moderation. It caters to industries such as digital advertising, social media, e-commerce, fintech, gaming, healthtech, media, technology, and travel & hospitality.

TDCX's smart, scalable approach—driven by innovation and operational precision—positions it as a key partner for companies targeting tangible outcomes. With more than 20,000 employees across 39 locations worldwide, TDCX delivers robust coverage across Asia, Europe, and the U.S.

Visit for more info.

#BeMore

Do you aspire for a rewarding career that lets you do more and achieve more? Unleash your full potential at work with TDCX, an award-winning and fast-growing BPO company.

Work with the world's most loved brands and be with awesome, diverse people. Be home, belong, and start your journey to #BeMore

Job Summary: We are seeking a highly skilled and motivated IT Assistant Manager to support our IT operations, focusing on networking, firewall management, server administration, and IT security compliance (ISO The ideal candidate will assist in designing, implementing, and maintaining secure and reliable IT infrastructure while ensuring compliance with industry best practices.

What is your mission?

• Lead the administration, maintenance, and optimization of the company's network infrastructure (LAN, WAN, WLAN, Firewalls, VPN, Load Balancers).
• Oversee daily operations, ensuring network availability, stability, and security across multiple sites.
• Proactively monitor and analyze network performance, identifying and resolving complex issues.
• Perform advanced troubleshooting and escalation support for incidents that cannot be resolved by junior administrators.
• Plan and execute network upgrades, configuration changes, and security enhancements in coordination with the IT Infrastructure and Security teams.
• Develop and enforce network policies, standards, and procedures to ensure compliance with IT governance and security frameworks (ISO 27001, SOC 2, etc.).
• Maintain accurate network documentation including topology diagrams, configuration baselines, and access control records.
• Mentor and provide technical guidance to junior network and IT staff.
• Work closely with vendors and service providers for advanced support and project delivery.

Who are we looking for?

• Bachelor's degree in Computer Engineering, Computer Science, Information Technology, or related field.
• 5+ years of experience in network administration or a related IT infrastructure role, with at least 2 years in a senior or lead capacity.
• Strong expertise in networking technologies including TCP/IP, Routing , Switching, VLANs, VPN, Wireless, and QoS.
• Hands-on experience with enterprise-grade network devices such as Cisco, Fortinet, Palo Alto, FirePower, ForcePoint, or equivalent.
• Solid understanding of network security principles, firewall management, IDS/IPS, and access control.
• Proficiency with monitoring and diagnostic tools (e.g., SolarWinds, PRTG, Nagios, Wireshark).
• Certifications such as CCNA, CCNP, Fortinet NSE, Palo Alto PCNSE, or CompTIA Security+ are highly desirable.
• Strong leadership, problem-solving, and communication skills with the ability to work across teams and present to management.
• Experience in multi-site enterprise or data center environments is a plus.

Who is TDCX?

TDCX provides transformative digital CX solutions, enabling world-leading and disruptive brands to acquire new customers, build customer loyalty, and protect their online communities.

TDCX helps clients, including many of the world's best brands, achieve their customer experience aspirations by harnessing technology, human intelligence, and our global footprint. We serve clients in fintech, gaming, technology, home sharing and travel, digital advertising and social media, streaming, and e-commerce. Our expertise and strong footprint in Asia have made us a trusted partner for clients, particularly high-growth, new economy companies looking to tap the region's growth potential.

We pride ourselves on discovering and employing the best professionals to join us as we transform the outsourced CX industry. Our commitment to #BeMore for our people, our clients, and our community has led to us winning several hundreds of industry awards, including being one of the best companies to work for in Asia.

From our first-rate workspaces, above-industry-average compensation packages, career opportunities, to our workplace perks, find out what else is in store when you embark on a career with TDCX.

Responsibilities

- Manage and maintain IT infrastructure systems including servers, storage, networks, firewalls, cloud, and virtualization platforms.

- Install, monitor, and troubleshoot LAN, WAN, and Wi-Fi networks to ensure system availability and reliability.

• Administer file servers, backup systems, and IT security systems.

• Maintains Unified Communications, VoIP, and any related equipment, services, and platforms

• Manage and maintain Server ESXi/Server Nutanix/Server Hyper-V

• Manage and maintain Veeam Backup

• Manage and maintain AD/GPO/MS365/Azure AD Connect (AD Sync MS365)

• Manage and maintain AP Controller Aruba

• Coordinate with IT Support teams and external vendors to resolve issues and enhance infrastructure efficiency.

• Plan and perform preventive maintenance for IT infrastructure.

• Support IT transformation and digitalization projects within the organization.

• Prepare technical documentation, user manuals, and infrastructure status reports.

Qualifications

- Bachelor's degree in Computer Science, Computer Engineering, Information Technology, or related fields.

- 3–5 years of experience in IT Infrastructure, System Administration, or Network Administration (depending on Officer/Senior level).

• Strong knowledge of Windows Server, Linux, VMware/Hyper-V, Microsoft 365, AWS, Azure, or other cloud platforms.

• Solid understanding of firewall, switch, router, load balancer, and network security concepts.

• Professional certifications such as CCNA, MCSA, Azure/AWS Certification are an advantage.

• Strong problem-solving and technical analytical skills with good teamwork and communication abilities.

Responsibilities

- Manage and maintain IT infrastructure systems including servers, storage, networks, firewalls, cloud, and virtualization platforms.

- Install, monitor, and troubleshoot LAN, WAN, and Wi-Fi networks to ensure system availability and reliability.

• Administer file servers, backup systems, and IT security systems.

• Maintains Unified Communications, VoIP, and any related equipment, services, and platforms

• Manage and maintain Server ESXi/Server Nutanix/Server Hyper-V

• Manage and maintain Veeam Backup

• Manage and maintain AD/GPO/MS365/Azure AD Connect (AD Sync MS365)

• Manage and maintain AP Controller Aruba

• Coordinate with IT Support teams and external vendors to resolve issues and enhance infrastructure efficiency.

• Plan and perform preventive maintenance for IT infrastructure.

• Support IT transformation and digitalization projects within the organization.

• Prepare technical documentation, user manuals, and infrastructure status reports.

Qualifications

- Bachelor's degree in Computer Science, Computer Engineering, Information Technology, or related fields.

- 3–5 years of experience in IT Infrastructure, System Administration, or Network Administration (depending on Officer/Senior level).

• Strong knowledge of Windows Server, Linux, VMware/Hyper-V, Microsoft 365, AWS, Azure, or other cloud platforms.

• Solid understanding of firewall, switch, router, load balancer, and network security concepts.

• Professional certifications such as CCNA, MCSA, Azure/AWS Certification are an advantage.

• Strong problem-solving and technical analytical skills with good teamwork and communication abilities.

Key Responsibilities:

Administration & Office Support

• Manage office supplies and stationery: monitor stock levels, request PR/PO, and distribute items as needed.
• Handle administrative purchasing requests, invoices, and documentation, ensuring timely submission to Accounting.
• Maintain accurate records such as access cards, cleaning check sheets, inspection forms, and internal distribution logs.
• Prepare and update employee-related materials (welcome packs, uniforms, desk setup, welcome board).
• Support HR with administrative tasks such as translations, filing, and document control.

Employee & Management Support

• Organize logistics for new employees, including uniform distribution, desk setup, and welcome arrangements.
• Support company events and activities, including preparation of gifts and logistics.
• Assist GM and management team with administrative support as required.

Travel & Transportation

• Arrange local and overseas travel for employees and visitors (ticket booking, hotel, transport, car rental).
• Coordinate with GM and top management for travel, accommodation, and special requirements during visits.
• Reserve company cars and track usage as requested.

Facility & Vendor Coordination

• Oversee cleaning operations and supervise maids to ensure company facilities (canteen, locker room, toilets, office areas) are kept in good condition.
• Coordinate maintenance requests and ensure facility issues are resolved promptly.
• Monitor service providers related to office and facility needs.

Compliance & HSE

• Support visa and work permit administration for expats under BOI benefit.
• Ensure compliance with ISO 9001, ISO 14001, and company QMS/HSE standards.
• Submit safety-related inspection forms to the Safety Manager on time.

Qualifications & Requirements:

• Bachelor's degree in Business Administration, Secretary, or a related field.
• 0–4 years of experience in administrative roles.
• Strong computer literacy in MS Office (Word, Excel, PowerPoint) and Outlook.
• Good English communication skills (speaking, writing, reading).
• Strong organizational skills with attention to detail.
• Service-minded, proactive, flexible, and able to multitask.
• Positive, reliable, and able to work both independently and as part of a team.

Competencies:

Technical & Business

• Manages data, information, and office resources efficiently.
• Applies problem-solving skills and uses digital tools effectively.
• Maintains a high standard of quality in administrative tasks.

Collaboration & Culture

• Team player with respectful and clear communication.
• Contributes to a positive work environment and employee wellbeing.
• Adapts communication to different audiences and situations.

Self-Leadership & Growth

• Takes ownership of assigned responsibilities and delivers on time.
• Open to feedback, continuous learning, and adapting to change.
• Demonstrates accountability and independence in work.

Struggling to find your next dream job?

We believe that following a defined and structured recruitment process will ensure that we have a fair and equal process for all candidates. We focus on finding the right talent and have designed our process to reduce biases and have a good candidate experience. For that reason, we are not accepting open applications, but encourage you to set up a job alert on our recruitment page to be notified when the next opportunity arises within your field of interest.

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Here you will be able to take a short questionnaire and read about where in our organization your skillset and personality can be a fit

About Us

AutoStore, founded 1996, is a warehouse robot technology company that invented and continues to pioneer cube storage automation, the densest order-fulfillment solution in existence. Our focus is to marry software and hardware with human abilities to create the future of warehousing. We are a value driven organization, with our people being our most important asset. Lean, Bold, and Transparent manifest itself in everything we do, and are pushing borders to increase efficiency, safety and develop new products for our customers. AutoStore was born out of the great idea for storing goods like Rubik's Cube, instead of Dominos. We are now looking for talent that share our values and curiousity for new technology and development

AsiaOne คือผู้ให้บริการด้าน International Repatriation รายแรกและเก่าแก่ที่สุดในประเทศไทย ด้วยประสบการณ์ยาวนานกว่า 50 ปี สำนักงานใหญ่อยู่ใจกลางกรุงเทพฯ ใกล้สถานทูตต่าง ๆ

ทีมงานกว่า 20 คน ประกอบด้วยผู้เชี่ยวชาญด้านพิธีศพและเจ้าหน้าที่หลายภาษา (ไทย อังกฤษ เยอรมัน จีน ฯลฯ) ทำงานร่วมกับครอบครัว โรงพยาบาล หน่วยงานรัฐ และสถานทูต เพื่อจัดการขั้นตอนที่ซับซ้อนอย่าง รวดเร็ว สุภาพ และเคารพในทุกศาสนาและความเชื่อ

ได้รับความไว้วางใจจาก สถานทูต บริษัทประกัน และองค์กรระดับโลก AsiaOne มุ่งมั่นให้บริการด้วย ความเมตตา ความเป็นมืออาชีพ และความน่าเชื่อถือ

• เพศหญิง อายุไม่เกิน 40 ปี
• จบการศึกษาระดับ ม.6, ปวช., ปวส., หรือปริญญาตรี (ไม่จำกัดสาขา)
• มีประสบการณ์ด้านงานบัญชี หรือการบันทึกบัญชี จะพิจารณาเป็นพิเศษ
• สามารถอ่าน/เขียนภาษาอังกฤษได้ในระดับกลาง
• ใช้คอมพิวเตอร์และโปรแกรมพื้นฐานได้ดี
• มีทัศนคติที่ดี ทำงานเป็นทีมได้ดี และเข้ากับผู้อื่นง่าย
• เรียนรู้สิ่งใหม่ได้เร็ว ยืดหยุ่นในการทำงาน
• มีความซื่อสัตย์ ขยัน อดทน ละเอียดรอบคอบ และทำงานภายใต้แรงกดดันได้

• สแกนเอกสารและคีย์ข้อมูลเข้าระบบ
• จัดทำสต็อกสินค้าและของใช้ภายในบริษัท
• ตรวจสอบความถูกต้องของเอกสาร และบันทึกเอกสารบัญชีลงระบบ
• จัดทำรายงานการซื้อ–ขาย
• จัดทำรายงานค่าใช้จ่ายประจำเดือนเพื่อการเงินและการบริหาร
• จัดทำใบสำคัญจ่าย หนังสือรับรองภาษีหัก ณ ที่จ่าย ฯลฯ
• จัดเรียงและสรุปข้อมูลเอกสาร
• งานธุรการอื่น ๆ ตามที่ได้รับมอบหมาย

About the role

Castis Corporation is seeking a dedicated and organized Administrator to join our growing team in Nonthaburi, Bangkok. This full-time role will play a crucial part in supporting the smooth running of our day-to-day administrative operations. As part of our administrative team, you will be responsible for providing efficient and reliable support to ensure the company runs seamlessly.

What you'll be doing

Key Responsibilities: is a multifaceted role that combines responsibilities from Human Resources (HR), administrative tasks, and accounting.

• Coordinate office activities and operations
• Liaise with HQ office administration team
• HR management
• Accounting support
• Liaise with local government agency and secretary company
• Manage phone calls and correspondence
• Support budgeting and bookkeeping procedures
• Invoicing
• Create and update records and database with personnel, financial and other data
• Develop reports as requested
• Maintain filing system
• Communication and language translation support for non-Thai colleagues
• Manage agendas/travel arrangements/appointments etc
• Track stocks of office supplies and place orders when necessary
• Translation of company information, documents and proposal into Thai language
• Other tasks assigned by the manager

What we're looking for

• Proven administrative experience, ideally in a corporate environment
• Excellent organizational and time management skills with the ability to prioritize tasks
• Strong communication and interpersonal skills, with a customer-focused approach
• Proficient in Microsoft Office applications, particularly Excel, Word and Accounting software
• Attention to detail and the ability to work accurately under pressure
• A collaborative mindset and the willingness to contribute to a positive team environment
• Bachelor degree, preferably in related field
• At least 2 years of experience in Admin/HR
• Focus on continuous knowledge-seeking and improvement
• Knowledge and experience in doing Visa and Work permit is a plus
• Strong communication & interpersonal skills
• Good English communication skills.
• Korean language skill is a plus

What we offer

At Castis Corporation, we are committed to providing our employees with a rewarding and fulfilling work experience. In addition to a competitive salary, we offer a range of benefits including:

• Competitive salary and quarterly, annually performance-based bonuses.
• Opportunities for professional development and career growth
• Team-building activities and social events

About us

Castis Corporation is a leading provider of innovative web-based solutions. Our mission is to empower businesses with cutting-edge technology that streamlines operations and enhances customer experiences. With a talented and dedicated team, we are committed to driving digital transformation and staying at the forefront of the industry.

Apply now to join our team and be a part of our exciting journey

• Female, age 25 years and over
• A diploma or bachelor's degree in any field (The field of accounting will be an advantage.)
• Excellent in Microsoft Office, especially Word and Excel
• Patience, good human relations meticulous and quick learning
• have general coordination skills. both inside and outside the relevant organization
• Be able to produce documents related to purchases and sales. (with job training provided) Quotation, Purchase order, Invoice
• Taking care of document work and keeping documents for customers and organizations systematically
• Other tasks assigned