Metro systems are built and maintained with welding. Continuous rails are joined by specialised rail welding processes, elevated viaducts and stations rely on steel structures, depots contain fabricated platforms, pits and equipment, and track maintenance requires regular weld repairs to keep rails smooth and safe. In Saudi Arabia, where the Riyadh Metro carries millions of passengers and new rail lines are being planned, metro welding is a specialised field that combines welding skill with strict railway safety and quality standards.
This guide explains metro welding jobs in Saudi Arabia, including the types of welding used on metro systems, job roles, salaries in Saudi riyals, qualifications and certifications, the hiring and visa process, safety rules, working at night on the track and how welders can build long-term careers in rail.
Rail Growth Creating Welding Work
The Riyadh Metro has six lines covering about 176 kilometres, 85 stations and 190 fully automated trains, and it passed 100 million passengers in less than nine months after opening. Maintaining this network requires ongoing track inspection and repair, including rail welding and structural repairs. Future expansion, such as the planned Line 7 of around 65 kilometres linking Diriyah Gate and Qiddiya, would bring a new wave of construction work involving track installation, steel structures and station fabrication.
Beyond metro, Saudi Arabia is expanding freight and passenger rail, with new logistics corridors and rail-linked dry ports. Experience gained in metro welding is valuable across these wider rail projects.
Who Hires Metro Welders
Metro welders in Saudi Arabia are usually employed by contractors rather than directly by the metro operator. Track maintenance companies handle rail welding, grinding and repairs, while rail construction contractors employ welders during new line construction and extensions. Steel fabrication firms supply station structures, canopies and depot equipment, and facility management companies may hire welders for ongoing repairs in stations and depots. Expatriate welders with rail experience are commonly recruited for these technical contractor roles.
Types of Welding on Metro Systems
Aluminothermic Rail Welding
Often called thermite welding, this process joins rail ends on site by pouring molten steel created by a chemical reaction into a mould around the rail joint. It is widely used for track construction and repairs, and it requires specific training and certification for the welding system used.
Flash-Butt Rail Welding
Flash-butt welding joins rails using electrical resistance and pressure, usually in welding plants or with mobile welding machines. It produces very strong, consistent welds for long continuous rails.
Rail Repair and Build-Up Welding
Arc welding is used to repair worn rail surfaces, switches and crossings. Welders build up damaged areas and grind them to the correct profile, restoring smooth running surfaces.
Structural Steel Welding
Stations, footbridges, canopies, viaduct components and depot buildings use steel structures that require certified structural welders.
Depot and Equipment Fabrication
Train depots need fabricated platforms, inspection pit structures, handrails, supports and maintenance equipment, built by fabrication welders.
Piping and Services Welding
Fire fighting lines, drainage and cooling pipework in stations and tunnels may require pipe welding.
Metro Welding Job Roles
- Thermite Rail Welder: Performs aluminothermic welds on track during construction and maintenance.
- Flash-Butt Welding Operator: Operates fixed or mobile flash-butt welding machines.
- Rail Repair Welder: Repairs switches, crossings and worn rail surfaces.
- Structural Welder: Welds steel for stations, canopies and depot structures.
- Fabrication Welder: Builds depot equipment and steel components in workshops.
- Rail Grinder Operator: Profiles welds and rail surfaces after welding.
- Welding Supervisor: Plans welding work, checks quality and manages teams.
Metro Welding Salary in Saudi Arabia
The table below shows general estimates of basic monthly salary in Saudi riyals. Packages usually include accommodation, transport, night shift allowances and overtime.
| Role | Monthly Basic (SAR) | Typical Employer |
|---|---|---|
| Welder Helper | 1,300 to 1,900 | Track and civil contractors |
| Fabrication Welder | 2,200 to 3,500 | Depot and workshop contractors |
| Structural Welder | 2,200 to 3,500 | Station contractors |
| Rail Grinder Operator | 2,800 to 4,500 | Track maintenance firms |
| Rail Repair Welder | 3,500 to 5,500 | Track maintenance firms |
| Thermite Rail Welder | 4,000 to 6,500 | Rail contractors |
| Welding Supervisor | 6,500 to 10,000 | Main rail contractors |
These figures are estimates. Rail welders with proven track experience and certification are scarce, which is why they usually earn more than general welders. Night work allowances add to monthly income.
Qualifications and Certification
Rail welding requires specialised training. Thermite welders are usually certified for the specific welding system and rail profiles they use, often through training approved by the system supplier or the rail authority. Flash-butt operators need machine-specific training. Structural and fabrication welders are commonly qualified to international codes such as AWS D1.1 or ISO 9606. Welders coming from abroad may need to pass Saudi Arabia’s skill verification test for welding trades if their country participates in the programme, and employers usually test welders again before allowing them on the track.
Eligibility Requirements
| Requirement | Typical Standard |
|---|---|
| Training | Welding trade certificate, rail welding training preferred |
| Experience | Three or more years, rail or metro preferred |
| Certification | Thermite or structural welding qualification |
| Skill Test | Skill verification certificate where required |
| Fitness | Fit for night work and heavy lifting |
| Background | Clean police record for rail access clearance |
Hiring and Visa Process
Step 1: Prepare a rail-focused CV. List rail welding systems, rail profiles, projects and certifications.
Step 2: Pass the skill verification test if required. Book through the official channel and practise.
Step 3: Apply to rail employers. Target track maintenance contractors, rail construction companies, metro systems contractors and licensed agencies.
Step 4: Practical welding test. Expect a test weld that is inspected and sometimes tested.
Step 5: Offer and medical. Review salary, allowances, accommodation and contract terms, then complete the medical.
Step 6: Visa. The employer issues the visa through Qiwa, processed through Enjaz before stamping.
Step 7: Iqama. After arrival, your residency is issued and visible on Absher.
Step 8: Rail safety training. Complete track access, hot work and site-specific training before working on the line.
Documents Needed
- Passport valid for at least two years
- Welding certificate attested through the relevant attestation authority
- Rail welding or structural welding qualifications
- Skill verification certificate, if required
- Experience letters naming rail or metro projects
- Police clearance and medical report
- Passport-size photographs
Continuous Welded Rail and Rail Stress
Modern metro lines use continuous welded rail, where long rail lengths are welded together to create smooth, quiet tracks with fewer joints. Because steel expands and contracts with temperature, rails must be installed and welded at the correct neutral temperature to avoid buckling in summer or breaking in cooler conditions. In Saudi Arabia’s climate, managing rail stress is especially important. Rail welders work with track engineers, using rail thermometers and tensioning equipment where needed, and they record rail temperatures for every weld. Understanding these principles sets professional rail welders apart from general welders.
How a Thermite Rail Weld Is Done
A thermite weld follows a precise sequence. The team cuts the rail ends to create the correct gap, aligns them vertically and horizontally, fits a mould around the joint and preheats the rail ends with a torch. The crucible containing the welding portion is placed above the mould and ignited, producing molten steel that flows into the gap. After a set time, excess metal is trimmed while still hot, and the weld is ground to the rail profile once cooled. Every step must follow the procedure exactly, because poor alignment or preheating can cause defects that lead to rail breaks.
Switches, Crossings and Special Trackwork
Switches and crossings, where trains change tracks, experience heavy wear and complex forces. Repair welders rebuild worn crossing noses and switch blades using approved arc welding procedures, careful preheating and controlled cooling, then grind them back to profile. This work requires precision and experience, because poor repairs can affect train stability. Welders skilled in special trackwork are among the most valued members of track maintenance teams.
Tools and Equipment
- Rail saws and rail drills
- Alignment tools and straightedges
- Preheating torches and gas equipment
- Thermite moulds, crucibles and trimming equipment
- Rail profile grinders
- Arc welding machines and generators for repairs
Quality Checks on Rail Welds
Rail welds are inspected carefully before trains run over them. Inspectors check alignment with straightedges, examine the weld surface for defects and use ultrasonic testing to find internal flaws. Weld records include location, welder identification, date, weather conditions and materials used. Poor welds must be cut out and replaced. Welders with consistently good inspection results are trusted with critical areas such as switches and crossings.
Night Work on the Track
Most metro track welding takes place during overnight engineering hours when passenger service has stopped. Teams must be at the work site on time, complete their tasks and clear the track before the first morning train. Traction power must be isolated and protection arranged before work begins, and everyone must follow instructions from the person in charge of track safety. Planning materials and equipment in advance is essential to finish within short windows.
A Night Shift With a Rail Welding Team
A rail welding team usually meets at the maintenance base in the late evening to review the work plan, permits and protection arrangements. After the last train and confirmation that the section is safe, the team moves equipment to the site, cuts out defective rail sections if needed, installs new rail pieces and carries out the welds. Grinding and inspection follow, and all tools and materials are removed before the line is handed back. A well-organised team can complete several welds in a single night.
Safety on the Railway
Metro welding combines welding hazards with rail hazards. Welders must wear fire-resistant clothing, face shields, gloves, safety boots and high-visibility vests, and follow hot work permits. Molten metal from thermite welding is extremely dangerous, so exclusion zones and fire precautions are strictly enforced. On the track, workers must never assume power is off without confirmation, must stay within protected areas and must keep alert for engineering trains and moving equipment.
Coordination With Track and Systems Teams
Rail welders rarely work alone. They coordinate with track engineers, grinding crews, signalling technicians and the operations control centre. Signalling equipment and cables near the rail must be protected during welding, and any disturbance must be reported. Clear communication and accurate handovers keep the line safe and ready for service.
Heat and Working Conditions
Riyadh’s summer heat affects both workers and rails, which expand in high temperatures. Welding procedures account for rail temperature, and some tasks are scheduled at specific times to manage rail stress. Outdoor work under direct sunlight is banned from 12 noon to 3 pm between 15 June and 15 September in the private sector, though most track work already takes place at night. Welders should stay hydrated and take breaks, as protective clothing increases heat stress.
Accommodation and Daily Life
Most rail contractors provide shared accommodation and transport to maintenance bases. Night shift workers should keep a regular sleep routine and use days off to rest properly. Living in Riyadh offers modern facilities, parks and community activities, and the metro itself makes commuting easy on days off.
Benefits and Insurance
Employers provide mandatory health insurance, commonly through Bupa Arabia, Tawuniya or MedGulf, and register welders with GOSI for occupational hazard protection. Contractors also carry construction and liability insurance through providers such as Walaa or Al Rajhi Takaful. Typical benefits include accommodation, transport, night allowances, protective equipment, paid leave, return tickets and end-of-service benefits.
Banking and Saving
Salaries are paid through the Wage Protection System into accounts with banks such as Al Rajhi Bank, Saudi National Bank, Alinma Bank or Bank Albilad. Many workers use STC Bank and urpay for daily payments and Enjaz for remittances. Saving night allowances and overtime builds financial security faster.
Mistakes That Can End a Rail Welding Career
Skipping preheating, rushing alignment, working without hot work permits, leaving tools on the track or ignoring track safety instructions are serious mistakes. A defective weld can lead to a broken rail, which is a major safety risk. Following procedures exactly, double-checking alignment and respecting protection arrangements protect both safety and your job.
Interview Tips
Be ready to explain the steps of a thermite weld, how you check rail alignment and how preheating affects weld quality. Describe the rail or metro projects you have worked on and the inspection results of your welds. Show strong awareness of track safety and hot work procedures, and bring certificates and qualification records.
Career Growth in Rail Welding
Rail welders can progress to senior welder, welding supervisor, track maintenance supervisor or rail welding inspector. Training in ultrasonic testing or welding inspection opens quality control roles. With Saudi Arabia expanding metro, freight and passenger rail, experienced rail welders have strong long-term opportunities across the Kingdom and the wider Gulf.
Conclusion
Metro welding jobs in Saudi Arabia offer specialised, well-paid work in a growing rail sector. Thermite and flash-butt rail welding, rail repairs, station steelwork and depot fabrication all require skilled welders who follow strict safety and quality standards. Earn rail welding certifications, build track experience, follow night work and hot work procedures closely and keep learning, and a rail welding career in the Kingdom can be both secure and rewarding.
Frequently Asked Questions
What is thermite rail welding?
It is an on-site process that joins rail ends by pouring molten steel, produced by a chemical reaction, into a mould around the joint.
Do metro welders work at night in Saudi Arabia?
Yes. Most track welding is done during overnight engineering hours when passenger trains are not running.
Which metro welding roles pay the most?
Thermite rail welders, rail repair welders and welding supervisors generally earn the highest salaries.
