Welder — Mig Mag · Switzerland

By Tanishq Chauhan · Reviewed by Bayswater Compliance Desk · Updated April 2026

Country Code: CH Profession Category: Welding / Metal Construction Specialization: Stahlbau / Apparatebau Last Updated: February 2026 Regulatory Complexity: High (EN 1090, SUVA Hot Work) Document Maturity: Gold Standard (Hard Reset)

Executive Summary

In Switzerland, welding is often part of the “Anlagen- und Apparatebauer” (Plant and Apparatus Builder) or “Metallbauer” trade. For structural steel, EN 1090 is strictly enforced, with Execution Classes (EXC 1-4) dictating the quality regime. Swiss workshops are meticulously organized. Safety is governed by SUVA, with a massive focus on “Brandwache” (Fire Watch) and Fume Extraction. A welder who ignores the WPS (Welding Procedure Specification) or works without fire safety is unemployable.

Switzerland is a non-EU/non-EEA federal civil-law confederation of 26 cantons under the Bundesverfassung of 18 April 1999 (SR 101). Federal regulatory documents are published trilingually in German, French, and Italian (Romansh recognised under Article 4 BV) on Fedlex (https://www.fedlex.admin.ch/), the official platform replacing the legacy admin.ch/opc/de/ since 2022. The legislative architecture for cross-border workforce mobilisation rests on three pillars: (1) the Bundesgesetz über die Ausländerinnen und Ausländer und über die Integration (AIG/LEI; SR 142.20) of 16 December 2005, governing admission of third-country nationals (Drittstaatsangehörige); (2) the Personenfreizügigkeitsabkommen / Accord sur la libre circulation des personnes (FZA/AFMP) of 21 June 1999, in force 1 June 2002 (SR 0.142.112.681), establishing EU/EFTA fast-track access; and (3) the Entsendegesetz (EntsG; SR 823.20) of 8 October 1999 with ordinance EntsV (SR 823.201), implementing the Flankierende Massnahmen (FlaM) wage-protection regime.

Three reform vectors define the operational landscape. First, the post-2014 settlement: the Volksinitiative gegen die Masseneinwanderung of 9 February 2014 (Article 121a BV) was implemented in 2016 via AIG amendments without unilateral re-imposition of EU quotas, preserving the AFMP. Second, the Begrenzungsinitiative of 27 September 2020 was rejected by 61.7 % popular vote, stabilising the EU/EFTA labour-mobility regime. Third, the 2024-2025 Bundesrat FlaM reform package introduced reinforced documentation, expanded Tripartite Commission audit powers, and tightened cantonal sanction registers; the consolidated EntsG amendment took effect 1 January 2026 [verify Bundesblatt publication]. The State Secretariat for Migration (SEM, https://www.sem.admin.ch/) administers federal admission; SECO (https://www.seco.admin.ch/) administers FlaM; cantonal Migrationsämter and Arbeitsmarktbehörden execute permits at first instance.

1. Legal & Regulatory Framework

Permission to Work

• Qualification: Schweisser-Prüfung (ISO 9606-1).
• Authorization:
  • Structure: EN 1090 certification of the company requires welders to hold valid certs.
  • Pressure: PED (Pressure Equipment Directive) applies for pipes/vessels.
• Safety: SUVA “Heissarbeiten” (Hot Work) permits required on sites.

Key Standards

• SN EN 1090: Execution of steel structures. (Replaced H1-H5 classes).
• SN EN ISO 9606-1: Qualification testing of welders.
• SN EN ISO 5817: Quality levels for imperfections (B, C, D).
• SUVA 84012.D: Fire protection during welding.

Switzerland is a non-EU/non-EEA federal civil-law confederation of 26 cantons under the Bundesverfassung of 18 April 1999 (SR 101). Federal regulatory documents are published trilingually in German, French, and Italian (Romansh recognised under Article 4 BV) on Fedlex (https://www.fedlex.admin.ch/), the official platform replacing the legacy admin.ch/opc/de/ since 2022. The legislative architecture for cross-border workforce mobilisation rests on three pillars: (1) the Bundesgesetz über die Ausländerinnen und Ausländer und über die Integration (AIG/LEI; SR 142.20) of 16 December 2005, governing admission of third-country nationals (Drittstaatsangehörige); (2) the Personenfreizügigkeitsabkommen / Accord sur la libre circulation des personnes (FZA/AFMP) of 21 June 1999, in force 1 June 2002 (SR 0.142.112.681), establishing EU/EFTA fast-track access; and (3) the Entsendegesetz (EntsG; SR 823.20) of 8 October 1999 with ordinance EntsV (SR 823.201), implementing the Flankierende Massnahmen (FlaM) wage-protection regime.

Three reform vectors define the operational landscape. First, the post-2014 settlement: the Volksinitiative gegen die Masseneinwanderung of 9 February 2014 (Article 121a BV) was implemented in 2016 via AIG amendments without unilateral re-imposition of EU quotas, preserving the AFMP. Second, the Begrenzungsinitiative of 27 September 2020 was rejected by 61.7 % popular vote, stabilising the EU/EFTA labour-mobility regime. Third, the 2024-2025 Bundesrat FlaM reform package introduced reinforced documentation, expanded Tripartite Commission audit powers, and tightened cantonal sanction registers; the consolidated EntsG amendment took effect 1 January 2026 [verify Bundesblatt publication]. The State Secretariat for Migration (SEM, https://www.sem.admin.ch/) administers federal admission; SECO (https://www.seco.admin.ch/) administers FlaM; cantonal Migrationsämter and Arbeitsmarktbehörden execute permits at first instance.

2. Role Scope & Industry Reality

Core Duties

• Welding: MIG (131) / MAG (135/136). High precision.
• Fabrication: Fitting, tacking, reading complex blueprints (Isometrics).
• Material: Steel (S235/S355), Stainless (CN), Aluminium.
• Finish: Grinding to “Swiss Finish” (invisible welds on architectural metalwork).

Typical Roles

• Schweisser: Pure welder.
• Metallbauer: Fabricator/Welder (All-rounder).
• Schweissfachmann (IWS): Welding Specialist/Supervisor.

Out of Scope

• Structural Analysis: Responsibility of the Engineer, but welder must respect the WPS.

3. Qualification & Experience Benchmarks

Education & Experience Timeline

• Pathway: Apprenticeship (Anlagen-Apparatebauer EFZ).
• Experience Benchmark:
  • Level 1 (Hilfsarbeiter): Grinding, drilling.
  • Level 2 (Schweisser): Certified execution of welds.
  • Level 3 (Vorarbeiter): Managing workshop flow, QA.

Equivalent Experience for Foreigners

• The “EXC” Gap: Switzerland uses EN 1090 extensively. Foreigners must understand that EXC2 or EXC3 requirements (traceability, cleaning, parameters) are non-negotiable.
• The “Cleanliness” Gap: Swiss workshops are clean. “Spatter” is a sin.

Switzerland operates a dual-axis trade regime: federal qualification recognition under the Bundesgesetz über die Berufsbildung (BBG; SR 412.10) of 13 December 2002, plus cantonal Gewerbe- und Berufsausübungsgesetze for trade-licensing. Construction trades are defined via the BBV (SR 412.101) and trade-specific Bildungsverordnungen (Maurer EFZ, Gerüstbauer EFZ, Sanitärinstallateur EFZ, Elektroinstallateur EFZ). Federal recognition operates under Articles 68-69 BBG/BBV via the SBFI (https://www.sbfi.admin.ch/) Anerkennungsstelle. EU/EEA qualifications additionally fall under Anhang III FZA, transposing Directive 2005/36/EC.

The Landesmantelvertrag für das Bauhauptgewerbe (LMV Bauhauptgewerbe; current edition 2023-2025 with negotiated extension into 2026 [verify final LMV Erneuerung]) between Schweizerischer Baumeisterverband (SBV), Unia, and Syna is the central collective contract for the main construction sector. Declared allgemeinverbindlich by Bundesratsbeschluss [verify AVE-Erlass 2026], the LMV applies to all Bauhauptgewerbe employers (including foreign posters) and employees, regardless of union membership. Adjacent sector GAVs apply by trade: GAV Ausbaugewerbe (Romandie/Tessin), GAV Plattenleger, GAV Gerüstbau, GAV Maler und Gipser, GAV Gebäudehülle Schweiz, GAV Sanitär-Heizung-Klima, GAV Elektroinstallationsbranche.

Suva (https://www.suva.ch/) issues binding safety thresholds under UVG (SR 832.20) and VUV (SR 832.30). EnDK sets cantonal energy-efficiency norms (MuKEn) for installation trades. For self-employed exercise, federal recognition plus cantonal Gewerbeanmeldung suffices; there is no Swiss equivalent of the German Meisterzwang. Regulated specialist trades (Elektrokontrolleur, Gas-Brennerservicetechniker) require ESTI or equivalent federal certificates; deployment of journeymen as employees does not engage these provided the employer holds the firm-level licence.

4. Language & Communication Requirements

Minimum Functional Level

• German: B1. Reading WPS and Safety Permits.

Key Vocabulary

• WPS (Schweissanweisung)
• Kehlnaht (Fillet weld)
• Stumpfnaht (Butt weld)
• Einbrand (Penetration)
• Poren (Porosity)
• Brandwache (Fire watch)
• Rauchabsaugung (Fume extraction)
• Schweisszusatz (Filler metal/Wire)
• Masshaltigkeit (Dimensional accuracy)
• Spritzer (Spatter)

Switzerland imposes no statutory CEFR threshold for construction trade exercise as such, but the de facto operational requirements are regional and safety-critical:

• On-site working language is canton-determined. German-speaking cantons (ZH, BE, LU, UR, SZ, OW, NW, GL, ZG, SO, BS, BL, SH, AR, AI, SG, GR-DE-Mehrheit, AG, TG) use Hochdeutsch in documentation and Schweizerdeutsch in spoken site communication. French-speaking cantons (GE, VD, NE, JU, FR-FR-Mehrheit, VS-Romandie) use French. Italian is the working language in Tessin (TI) and Italian-speaking Graubünden valleys.

• Suva safety briefings (Sicherheitsunterweisungen / instructions de sécurité): Issued under Article 6 VUV in the on-site language; multilingual Suva-Merkblätter at https://www.suva.ch/ in DE/FR/IT plus PT, ES, PL, HR, AL, TR. Comprehension must be evidenced (signed Unterweisungsprotokoll); failure breaches VUV Article 11a.

• A2 minimum for safety-critical roles where workers must comprehend briefings independently.

• B1 recommended for journeymen in mixed Swiss-international teams.

• B2 effective requirement for Polier and Bauleiter roles given documentation, Bauherrenkommunikation, and SIA-Norm responsibilities.

Goethe-Institut Schweiz (Zürich) retail pricing as at March 2026 [verify Gebührenordnung 2026]: A1/A2 CHF 1,150, B1 CHF 1,350, B2 CHF 1,550 per level. Goethe-Zertifikat exam fees: A2 CHF 240, B1 CHF 300, B2 CHF 360. Alliance Française (Genève, Lausanne) for FR levels runs CHF 850-1,250. Società Dante Alighieri (Zürich, Lugano) for IT runs CHF 700-950. Origin-country PASCH centres quote EUR 350-650 equivalent per level; Alliance Française origin centres EUR 280-550. Training cost is borne by worker or deploying employer per LMV Article 41 and customary contracts.

5. Technical Competency Assessment Rubric

Evaluate the candidate on the following 10 dimensions.

Total Score Rule: Sum of (Score x Weight). Pass is 7/10.

6. Practical Test Specifications

Total Duration: 3 Hours

Test 1: The “WPS Violation” Trap (Quality) (20 Minutes)

• Scenario: Welding a 20mm Plate connection (EXC3).
• The Trap (Technical): The candidate is given a WPS that specifies “Preheat to 100°C”. No torch/heater is visibly laid out. The Foreman says: “It’s warm enough today, just weld it.”
• Task: “Start the weld.”
• Pass Criteria: STOPS. Refuses to weld without preheating. Cites WPS / EN 1090: Thick plate requires preheat to prevent Hydrogen Cracking. “If the WPS says 100°C, we measure 100°C.”
• Fail Behavior: Ignores the preheat instruction. (Quality violation). IMMEDIATE FAIL.

Test 2: The “Fire Watch” Trap (Safety) (15 Minutes)

• Scenario: Welding a bracket on a site renovation. There are cardboard boxes and pallets 2 meters away.
• The Trap (Safety/SUVA): The Boss says: “Quick, tack this on before lunch.”
• Task: “Perform the tack weld.”
• Pass Criteria: REFUSES. States: “SUVA Hot Work Rule: Combustibles within 10m must be moved or covered. I need a Fire Extinguisher and a Fire Watch (Brandwache) or I clear the area first.”
• Fail Behavior: Strikes an arc with combustibles nearby. (Fire hazard). IMMEDIATE FAIL.

Test 3: Vertical Up Butt Weld (Skill) (45 Minutes)

• Scenario: 12mm Plate, Single V, PF Position.
• Task: “Fill and Cap.”
• Pass Criteria: Uniform weave. No undercut >0.5mm (Level B). Flat profile (no excessive reinforcement).
• Fail Behavior: Sagging weld pool. Cold lap.

7. Theoretical / Oral Knowledge Test

Format: 25 Questions (Verbal)

Section A: Swiss Regulations (SUVA / EN 1090)

1. What does EXC2 mean? (Execution Class 2 - Standard building structures).
2. Safety distance for combustibles? (10m rule - SUVA).
3. What is a Brandwache? (Person watching for fire after welding).
4. Are you allowed to change WPS parameters? (Only within strict qualification limits).
5. Purpose of Fume Extraction? (Health - Chrome VI etc.).
6. Valid welder cert duration? (2 or 3 years usually).
7. What is a “Schweissaufsicht”? (Welding Coordinator).
8. Eye protection shade for 200A? (DIN 10-11).
9. UV radiation risks? (Skin burn / Arc eye).
10. Grinder safety? (Dead man switch, glasses, guard).

Section B: Technical Welding 11. Difference “a” dimension vs “z” dimension? (Throat vs Leg length). 12. Gas for Stainless? (Argon + 2.5% CO2 typical). 13. Interpass temperature? (Max temp before next run). 14. Why clean aluminium? (Remove Oxide layer). 15. What is “Bindefehler”? (Lack of fusion - dangerous). 16. Polarity for MAG? (DCEP - Torch Positive). 17. Inductance effect? (Arc softness/spatter control). 18. Hydrogen cracking cause? (Moisture/Lack of preheat). 19. Weaving vs Stringer? (Weaving adds heat input). 20. Wire stick-out? (10-15x diameter).

Section C: Working Life 21. Shift work? (Common in production). 22. Cleanliness? (Swiss workshops are spotless). 23. Tools? (Own helmet often preferred, basic tools provided). 24. Salary? (CHF 5000 - 6500). 25. Language? (German is key for drawings).

8. Workplace Culture & Behavioral Expectations

”Qualitätsbewusstsein” (Quality Consciousness)

• Pride: A weld is a signature.
• Organization: Tools are cleaned and put away.

(1) Switzerland is non-EU but applies an EU-equivalent posted-worker regime via Bilateral I and FlaM. EU/EFTA-established posters operate under FZA Anhang I in substance equivalent to Directives 96/71/EC and 2018/957, with FlaM enforcement on top. UK posters since 1 January 2021 are Drittstaaten subject to the UK-Schweiz Übergangsabkommen and a separate annual UK service-provider quota of approximately 3,500 days. Per-trade rubrics for UK-origin scoping must flag the UK-as-Drittstaaten reclassification — a frequent source of mis-scoping in 2025-2026 onboarding.

(2) The 8-day rule is the most-cited compliance trap — even one day on site without notification equals a full fine. Tripartite Commission and cantonal Inspektorat practice treats the 8-day waiting period as strict liability. Meldung submitted day 0 means earliest legal site entry on day 9 (calendar days, weekends and public holidays counted, no netting for processing). Per-trade rubrics covering posted scenarios must explicitly weight understanding of the trigger event (date of SECO receipt, not submission attempt) and the SECO-listed-sectors regime — most rubric trades are listed via the Liste der meldepflichtigen Berufe at https://www.entsendung.admin.ch/.

(3) Cantonal authorities differ — same statute, different enforcement intensity. Permit allocation, FlaM inspection frequency, Kaution practice, and Schwarzarbeit prosecution vary materially by canton. Zürich, Genève, Basel-Stadt, Bern run intensive enforcement; rural cantons (UR, OW, NW, AI) lighter regimes. Drittstaaten-Kontingent: Zürich and Genève exhaust quotas Q1-Q2; smaller cantons retain availability into Q4. Per-trade rubrics should not assume uniform outcomes; deployment timeline and probability metrics must be canton-specific where possible.

(4) Drittstaaten workers face a strict annual quota — practical non-EU pathway is the EU-resident pre-employment route, not direct Swiss application. The Article 20 AIG quota of approximately 8,500 total Permit B+L for Drittstaaten 2026 [verify Bundesratsbeschluss Dez 2025] is exhausted in volume cantons by mid-year. Direct application from India, Philippines, Brazil, Egypt, or Morocco for Bauhauptgewerbe has low admission probability without (a) cadre salary justification (CHF 130,000+) or (b) sponsorship by a major Generalunternehmer with priority allocation. The preferable structure is the EU-intermediary route: the worker is pre-employed at least 6 months by an EU/EFTA employer (e.g. Polish or Croatian service company) before posting under FZA Anhang I. BGE 140 II 112 and consolidated jurisprudence require genuine home-state pre-employment to prevent shell-posting. Per-trade rubrics for Drittstaaten candidates should default to the EU-intermediary route.

(5) SECO list of activities subject to 8-day rule — most rubric trades are on it. The Liste der meldepflichtigen Berufe at https://www.entsendung.admin.ch/ enumerates Bauhauptgewerbe (mason, concrete, formworker, steelfixer, scaffolder), Ausbaugewerbe (electrician, plumber, painter, plasterer, tiler, glazier, roofer, carpenter), and adjacent trades (welder on construction sites, pipefitter on industrial-construction sites). Industrial maintenance outside any Baustelle context may fall outside the listed-sectors regime — but the boundary is enforced strictly; ambiguous projects (greenfield industrial, brownfield major extension) are treated as Baustelle.

(6) Verification flags. All [verify] figures were extrapolated from 2024-2025 published values plus expected indexation. Downstream rubrics citing 2026 numbers should re-confirm against: SBV/Unia/Syna LMV-Tariftabelle, SECO FlaM-Vollzugsbericht and AVE-Register, BSV Mitteilungen for AHV/IV/EO/ALV/BVG, Suva Prämientarif for UVG, Stiftung FAR Beitragsverordnung, and SEM Weisungen AIG (https://www.sem.admin.ch/) for Permit B thresholds and Drittstaaten-Kontingent.

9. Red Flags & Instant Disqualifiers

• ❌ The Cowboy: Sparks flying everywhere near trash.
• ❌ The Guesser: Twists knobs without looking at the WPS.
• ❌ The Slob: Leaves grinder leads tangling, workspace dirty.

10. Country-Specific Adaptation Gaps

Common Challenges for Foreign Welders in Switzerland

1. Fire Safety Paranoia

• Context: Swiss insurance (Sudrand) and SUVA are obsessive about fire.
• Gap: “It’s just a spark.”
• Correction: “A spark can cost millions. Follow the protocol.”

The five highest-frequency enforcement findings on cross-border construction deployment to Switzerland:

1. 8-day-rule violation. The single most-cited FlaM offence. Activity before the 8-day waiting period — even by one day or one hour — is a complete breach attracting Article 9 EntsG fines of CHF 5,000-30,000 per worker. Tripartite Commission inspections are unannounced; site presence on day 7 with active works is sufficient evidence. Posters must allow at least 10 working days between Meldung and site entry to absorb weekend offsets and processing time.

2. LMV wage non-parity (Lohnunterbietung). Posted workers paid below the LMV Lohnklasse rate for the equivalent Swiss-resident worker. Tripartite Commissions audit payslips, hours records, and bank statements; the comparison includes 13. Monatslohn pro-rata, allowances, and overtime. Sanctions: fine + retroactive wage + Kaution forfeiture for repeat offences + Dienstleistungssperre.

3. Kaution / bond not posted. Bauhauptgewerbe posters must lodge the LMV-mandated Kaution (CHF 10,000-20,000 [verify 2026 Staffelung]) with the Zentrale Kautionsverwaltung before site entry where required by the PBK Bauhauptgewerbe. Posting without prior Kaution is grounds for immediate site shutdown and Meldeverfahren cancellation.

4. Schwarzarbeit under BGSA. The Bundesgesetz gegen die Schwarzarbeit (BGSA; SR 822.41) of 17 June 2005 criminalises unreported employment, undeclared SS, and illegal employment of foreigners. Cantonal Inspektorate run joint Kontrollorgane with Suva, Migrationsamt, and ALV. Article 13 BGSA fines reach CHF 1,000,000 for legal entities; Article 117 AIG fines for illegal employment reach CHF 1,000,000 plus imprisonment up to one year. Posting a Drittstaaten-national via an EU intermediary without the FZA-required minimum 6-month prior pre-employment (BGE 140 II 112 and consolidated CJEU/Federal Court doctrine) constitutes Schwarzarbeit.

5. A1 doc lapse triggers Swiss SS enrolment. A1 validity gaps — Permit L to Permit B without coordinated renewal, or Article 12 of 883/2004 24-month expiry without Article 16 derogation — trigger immediate Swiss SS enrolment with retroactive employer liability for AHV/IV/EO/ALV/BVG/UVG/FAR back to the lapse date. AHV-Ausgleichskasse enforcement is automatic on notification by Tripartite Commission or Zollverwaltung.

11. Scoring Interpretation & Hiring Guidance

• 0-5 (Liability): Illegal/Unsafe worker.
• 6-7 (Schweisser): Good hand skills, needs supervision.
• 8-10 (Vorarbeiter Potential): Inspects own work, manages WPS.

12. References & Resources

Regulatory Bodies

1. SUVA: https://www.suva.ch/ (Safety).
2. SVS: https://www.svs.ch/ (Welding Society).

Standards

3. SN EN 1090: Steel Structures.
4. SUVA 84012.D: Fire Protection.

Appendix: Research Log