Niranjan Shanmuganathan
Croydon,UK
Summary
Experienced Mechanical Engineer with over 7 years of expertise in managing complex field service, maintenance, and project operations across high-pressure environments. Proficient in troubleshooting electrical, electronic, and mechanical systems, ensuring safety compliance, and delivering efficient installations. Demonstrated ability to prioritize tasks, manage USD 300,000+ inventories, and lead teams to resolve breakdowns swiftly. Committed to fostering safety and excellence through strategic planning and technical precision, thriving both independently and collaboratively.
Overview
12
12
years of professional experience
4
4
years of post-secondary education
1
1
Certification
Work history
Maintenance Engineer
Freelance Maintenance Engineer
09.2024 - 09.2025
- Maintenance in retailer shops, ensuring operational reliability.
- Checking refrigerators and performing professional cleaning.
- Preventive maintenance of shop equipment to minimise breakdowns. Established new Checklist systems to minimize future breakdowns
- Providing technical support and troubleshooting assistance to clients and increased sales by 20%
Field Service Engineer / Maintenance Engineer
Rapiscan Systems Pvt Ltd
Colombo
01.2019 - 09.2025
- Company Overview: Colombo Port, Sri Lanka
- Conducted on-site periodic and scheduled maintenance of electronic cargo screening systems, reducing downtime by 25% through proactive diagnostics and calibration.
- Troubleshot and repaired electrical, electronic, and mechanical faults in high-energy X-ray systems, Allen Bradley PLCs, HMIs, and networks, achieving 95% SLA compliance.
- Designed and maintained server racks, virtual PCs, microwave/fibre optic links, Net Gear switches, Moxa RS232, generators, UPS, and 3-phase panel boards, ensuring 24/7 operational reliability.
- Implemented Axis camera networks, PA systems, and photo electronic setups, enhancing security monitoring efficiency by 20%.
- Performed PCB repairs, SMD soldering, and maintenance of temperature control units, cooling pumps, and hydraulics, maintaining zero-incident safety record.
- Managed USD 300,000 inventory: Raised POs, tracked shipments, conducted annual audits, and submitted financial reports, reducing costs by 15%.
- Provided technical training and support to clients on installation, operation, safety, and project management, improving team and customer readiness.
- Built data tracking systems using field reports to monitor product reliability and availability, supporting sustained performance metrics.
- Colombo Port, Sri Lanka
Mechanical Engineer Executive
Larsen & Toubro Construction
Colombo
06.2018 - 09.2018
- Company Overview: Colombo, Sri Lanka
- Oversaw installation of heavy motors and water purifying pumps, including procurement and shop drawing approvals, completing projects 10% ahead of schedule.
- Prepared Bills of Quantities (BOQ), conducted site visits, and reviewed daily/weekly work reports, ensuring compliance with engineering standards.
- Colombo, Sri Lanka
Mechanical Engineer / Site Engineer
Al-Jazeera Arabia Power Engineering WLL
Doha
10.2016 - 01.2018
- Company Overview: Doha, Qatar
- Installed and maintained centralized/split/VRF/ducted A/C systems and electrical works (cable pulling, trays, trunking, panel boards, bus bars), reducing failures by 20%.
- Managed firefighting installations (valves, alarms, water/booster pumps), fire alarm systems, plumbing, and drainage, ensuring quality compliance.
- Created shop drawings using AutoCAD per consultant specs, prepared BOQs, and handled tendering/quotations for multimillion-dollar projects.
- Coordinated with suppliers for material submittals and procurement, optimising costs and timelines.
- Doha, Qatar
MEP / Site Engineer (Trainee)
LINK Engineering Pvt Ltd
Colombo
07.2015 - 04.2016
- Company Overview: Colombo, Sri Lanka
- Supported split-type A/C installations, plumbing, drainage, firefighting, and electrical works, gaining full MEP lifecycle experience.
- Prepared subcontract bills for mechanical and electrical works, including floor levelling and bathroom fittings, ensuring accurate documentation.
- Managed 25 members team under supervision and increased work spread with skilled labours and completed all 100% worked before deadline
- Colombo, Sri Lanka
Assistant Engineer Executive
Lanka Ashok Leyland
Colombo
11.2013 - 05.2014
- Company Overview: Colombo, Sri Lanka
- Assembled heavy vehicles, manufactured polymer body parts, and integrated new technologies (balloon/A/C buses), boosting production efficiency by 15%.
- Serviced engines and assembled/repaired generators, maintaining zero-defect assembly lines for commercial fleets.
- Colombo, Sri Lanka
Education
Bachelor’s Degree - Mechanical Engineering
University of Sunderland
Colombo 01.2014 - 01.2016
BTech HND - Mechanical Engineering
International College of Business And Technology
09.2012 - 09.2014
Skills
- Project & Risk Management
- Technical Expertise
- Maintenance & Installation
- Safety & Compliance
- Tools/Software
- Complex problem analysis
- Inventory management
- Excel proficiency
- Equipment troubleshooting
Custom
Eligible to work in the UK
Personal Information
Title: Field Service & Maintenance Engineer | Mechanical Engineering Specialist
Certification
Full clean UK driving license
Timeline
Maintenance Engineer
Freelance Maintenance Engineer
09.2024 - 09.2025
Field Service Engineer / Maintenance Engineer
Rapiscan Systems Pvt Ltd
01.2019 - 09.2025
Mechanical Engineer Executive
Larsen & Toubro Construction
06.2018 - 09.2018
Mechanical Engineer / Site Engineer
Al-Jazeera Arabia Power Engineering WLL
10.2016 - 01.2018
MEP / Site Engineer (Trainee)
LINK Engineering Pvt Ltd
07.2015 - 04.2016
Bachelor’s Degree - Mechanical Engineering
University of Sunderland
01.2014 - 01.2016
Assistant Engineer Executive
Lanka Ashok Leyland
11.2013 - 05.2014
BTech HND - Mechanical Engineering
International College of Business And Technology
09.2012 - 09.2014
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