Optical Fiber Technician

The Optical Fiber Technician is responsible for testing, troubleshooting, and remediating fiber-optic infrastructure within a mission-critical data center environment.

This role focuses on validating optical performance, identifying failures, performing corrective actions, and ensuring all fiber links meet customer and industry acceptance standards before production turnover.

• Perform OLTS (Insertion Loss), OTDR, continuity, and polarity testing on single-mode and multi-mode fiber.
• Conduct end-face inspection and cleaning per IEC 61300-3-35 standards.
• Validate fiber performance against TIA-568, BICSI, ISO/IEC, and client-specific requirements .
• Interpret OTDR traces and identify loss events, reflections, breaks, and anomalies.

• Diagnose and correct failed fiber links due to:
  • Dirty or damaged connectors
  • Excessive splice or connector loss
  • Bend-radius violations
  • Crushed, pinched, or damaged cable
  • Incorrect polarity or fiber mapping
• Perform fusion splicing , re-termination, connector replacement, and fiber redressing as needed.
• Replace defective components including patch cords, cassettes, adapters, and enclosures.
• Ensure remediation activities do not introduce new faults or impact adjacent fibers.

• Ability to read and interpret OTDR test spans , accurately differentiating loss events caused by fiber breaks, reflections, splices, connectors, and macro/micro-bends .
• Strong understanding of end-to-end link loss spans , including identification of cumulative loss versus individual event loss.
• Ability to create, calculate, and validate optical link loss budgets , and confirm compliance with TIA/BICSI standards and client acceptance thresholds .
• Capable of correlating OTDR results with OLTS data to determine pass/fail status and root cause.
• Skilled in using test results to recommend and execute remediation actions to bring links within allowable loss limits.

• Produce certified test reports (OLTS/OTDR) with trace analysis.
• Update fiber schedules, labeling, and as-built documentation.
• Document remediation actions and before/after test results.
• Support client acceptance, audits, and turnover requirements.

• Work within live, mission-critical environments following MOPs, SOPs, and change control processes .
• Comply with EHS, safety, and access protocols .
• Coordinate with project managers, leads, and other trades during remediation activities.
• Maintain cleanliness, cable management, and proper routing in active spaces.

• 3+ years of experience in fiber optic testing and remediation , preferably in data centers.
• Hands-on experience with OTDR, OLTS, fiber scopes, and test documentation tools .
• Proficiency in single-mode (OS2) and multi-mode (OM3/OM4/OM5) fiber.
• Experience with fusion splicing and fiber repairs.
• Strong understanding of polarity methods (A/B/C), MPO/MTP systems , and structured cabling.
• Ability to read construction drawings, fiber schematics, and test specifications.
• Familiarity with TIA, BICSI, and manufacturer standards .
• Strong troubleshooting and root-cause analysis skills.

• Experience working in hyperscale or colocation data centers (Meta, Google, AWS, Vantage, etc.).
• BICSI Technician, CFOT, or equivalent fiber certifications.
• Experience with high-fiber-count environments and structured cabling systems.
• Ability to lead small teams or act as a testing/remediation lead .

Tanisha Systems, founded in 2002 in Massachusetts-*, is a leading provider of Custom Application Development and end-to-end IT Services to clients globally. We use a client-centric engagement model that combines local on-site and off-site resources with the cost, global expertise and quality advantages of off-shore operations. We deliver Custom Application Development, Application Modernization, Business Process Outsourcing and Professional IT Services from office locations in * and *.

Tanisha Systems services clients in Government, Banking & Financial Markets, Insurance, Healthcare, Retail & Consumer Goods, Energy & Utilities, Life Sciences, Telecom, Manufacturing and Transportation Industries around the globe. Our engagement model provides a flexible operational environment that empowers our clients with the right levels of control.

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