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Andrés (Leonardo) Guevara Kluxen

Freelancer

Andrés Guevara Kluxen
Waren (Müritz), Germany

Experience

Jul 2025 - Present
8 months
Berlin, Germany

Freelancer

ALGK-BAUPRO

  • Scope of work [link]
Apr 2025 - Aug 2025
5 months
Berlin, Germany

Project Director Infrastructure

VINCI GeoInfrastructure GmbH Deutschland

  • Project – SuedOstLink, Lot C1, Cable Route
  • 90 km cable trench
  • 80 crossings (cut & cover, HDD, microtunnelling)
  • 65 large joint bays (muff houses)

  • 10 soil treatment plants

Jan 2023 - Mar 2025
2 years 3 months
Hamburg, Germany

Project Director Tunnelling

Implenia Construction GmbH

  • Project – Crossing River Elbe Hamburg
  • TBM CREG EPB OD 4300 segment lining, 1.2 km
  • 2 shafts with diaphragm walls Ø 23 m, depth 39 m
  • Buoyancy protection base plate with anchor
  • Steel construction for culvert for district heating supply and return pipe ID 800
  • Passage through alternating glacial sediments with up to 45 m water pressure
Jul 2019 - Dec 2022
3 years 6 months
Waren, Germany

Division Manager & Head of Technical Department

Gebrüder Karstens GmbH & Co KG

  • Numerous projects in infrastructure building, road construction, pipeline construction
  • Head of construction equipment
  • Up to 60 employees
Nov 2018 - Jun 2019
8 months
Stockholm, Sweden

Project Director & Managing Director Tunnelling, Head of Tunnel Department

Vianini Lavori SpA – Lovön Samverkan AB Joint Venture

  • Construction time 71 months (start blasting Oct 2017)
  • 5 Atlas Copco boomer
  • 2 stationary crushing plants + 3 mobile crushing plants
  • 2 concrete batching plants (120 m³/h)
  • 9 million tons granite hard-rock excavation with vehicle-conveyor-belt-seaborne mucking system
  • Access tunnel (80 m², 6 km), main tunnel (130 m², 14 km), junctions up to 200 m²
  • 8 ventilation chambers (>22,500 m³), 8 shafts (raise boring 45 m–110 m, Ø 9.8 m)
  • Conventional rock pre-support (NATM) with grouted anchors, wire mesh, shotcrete
  • Tunnel inner lining: 3 road lanes with concrete impact walls and waterproof membrane roof sealing
Nov 2015 - Oct 2018
3 years
Israel

Project Director Tunnelling, Head of Tunnel Department

Ed. Züblin AG – Division International Tunnelling

  • Construction time 50 months (start drilling end of 2016)
  • TBM Atlas Copco OD 3900 hard-rock double-gripper with rail-bounded muck removal (13.5 km)
  • Conventional support (NATM) with grouted anchors, wire mesh, shotcrete
  • Access tunnel by road header Sandvik MT 720 (1.3 km, 29 m²)
  • Site installation, steel lining and grouting of 100″ pipe (14.1 km total)
  • David surge shaft: vertical shaft by raise boring/drill & blast (Ø 4 m–5.5 m, depth 290 m)
  • Excavated volume: 225 000 m³ / 585 000 t
  • Personnel up to 120, contract volume > €200 million
Jun 2012 - Oct 2015
3 years 5 months
Dortmund, Germany

Senior Construction Manager Tunnelling

Royal BAM Group - Wayss & Freytag Ingenieurbau AG

  • EPB boring machines ID 1600–2400 and ID 2800 with slurry transport and fluid support
  • Annulus overcut with centralised bentonite lubrication system
  • Start/reception shafts with secant bored piles/diaphragm walls Ø 12 m–25 m, depth 17 m–36 m
  • Reinforced concrete jacking pipes ID 1600–2800 (OD 2100–3600), max string length 1450 m with 9 intermediates
  • Total length 51 km, bends down to 500 m radius, max jacking force 21 000 kN
  • Crossings of motorways, canal, railways in soft rock (7 MPa), groundwater pressure up to 3.6 bar
  • Personnel up to 70, contract volume > €400 million
Dec 2011 - Jun 2012
7 months
Kolding, Denmark

International Senior Project Manager

Meyer & John GmbH & Co. KG

  • Pipe jacking with open shield and tunnel scraper
  • Full face boring with slurry transport and bentonite face support
  • Annulus overcut with centralised bentonite lubrication
  • Compressed air site, sheet-piling start/reception shaft (13 m×7 m×16 m)
  • Jacking pipes ID 3100 (OD 3800) and GRP ID 800 (OD 870), total length 650 m, 3 intermediates
  • Bend radius infinite, max jacking force 6000 kN, crossing harbour bay in interbedded sand, clay, peat, 1.6 bar water pressure
  • Personnel up to 20, contract volume €1.3 million
Jul 2011 - Sep 2011
3 months
Niestetal, Germany

International Senior Project Manager

Meyer & John GmbH & Co. KG

  • Full face boring with slurry transport and bentonite support
  • Annulus overcut with centralised bentonite lubrication
  • In-situ concrete start/reception shaft (6 m×4.5 m×6 m)
  • Jacking pipe ID 1200 (OD 1720), length 120 m, 4 intermediates
  • Bend radius infinite, max jacking force 8000 kN, crossing motorway A7, hard sandstone (70 MPa)
  • Personnel up to 8, contract volume €250 000
May 2011 - Jun 2012
1 year 2 months
Kassel, Germany

International Senior Project Manager, TBM Tunnel Manager

Meyer & John GmbH & Co. KG

  • Full face boring with slurry transport and bentonite support
  • Annulus overcut with centralised bentonite lubrication
  • In-situ concrete start/reception shaft (6 m×4.5 m×6 m)
  • Jacking pipe ID 1200 (OD 1720), length 1050 m, 7 intermediates
  • Bend radius infinite, max jacking force 8000 kN, inner-city hard limestone (40 MPa)
  • Personnel up to 15, contract volume €2.4 million
Oct 2010 - Jun 2011
9 months
Gothenburg, Sweden

International Senior Project Manager, TBM Tunnel Manager

Meyer & John GmbH & Co. KG

  • Full face manned boring with slurry transport and bentonite support
  • Annulus overcut with centralised bentonite lubrication
  • In-situ concrete start/reception shaft (9 m×6.5 m×12 m)
  • Jacking pipe ID 2200 (OD 2680), length 750 m, 4 intermediates
  • Bend radius infinite, max jacking force 12 000 kN, crossings of motorway and railway, 0.6 bar water pressure
  • Personnel up to 20, contract volume €3.3 million
Apr 2010 - Sep 2010
6 months
Bad Nieuweschans, Netherlands

International Senior Project Manager, TBM Tunnel Manager

Meyer & John GmbH & Co. KG

  • Direct Pipe system Herrenknecht for 48″ PE-coated steel gas pipeline
  • Pipe thruster force 7500 kN, bend radius 1900 m, length 250 m
  • Start/reception shafts with steel sheet piles (Larson L 603)
  • Personnel up to 8, contract volume €150 000
Sep 2007 - Dec 2009
2 years 4 months
Tripoli, Libyan Arab Jamahiriya (Libya)

International Construction & Production Manager

STRABAG S.E. - STRABAG International GmbH

  • Rehabilitation and upgrading of Tripoli International Airport road (TIAR), 2×4 asphalt lanes, 25 km
  • Milling and asphalt pavement: 260 000 t; 50 km concrete barrier
  • Geotechnical investigation, quarry licensing and operation with crushing plants
  • Erection of asphalt plant (240 t/h) and concrete plant (60 m³/h)
  • Transport department setup (30 trucks), staff camp for 350
  • Personnel up to 240, contract volume €180 million
Apr 2004 - Jul 2007
3 years 4 months
Madrid, Spain

International Construction Manager Tunnel Equipment

FOGTEC Brandschutz GmbH & Co. KG

  • Design and manufacture of tunnel fire protection with high-pressure water mist (240 bar)
  • 1.5 MW pump capacity, 45 km stainless steel piping ID 10 mm–276 mm
  • Installation of smoke and fire detection systems with Ethernet control
  • Sites: Madrid M30, Oviedo A5, Granada railway station
  • Personnel up to 60, contract volume €23.5 million
Jan 1999 - Dec 2004
6 years
Germany

Construction Manager

TBS-Bau GmbH

  • Development and building of residential area Fallersleben: 250 one-family houses + 70 multi-family residences
  • Development and building residential area Hannover-Krohnskamp (Expo 2000)
Jan 1996 - Dec 1999
4 years
Germany

Project Manager

Heilit + Woerner Bau AG

  • Pile foundation for River Saale bridge Jena (24 bored piles Ø 1.8 m, depth 36 m)
  • Renovation and elongation of Erfurt airport runway (145 000 m²)
  • Subterraneous cable trays (1 500 m), highways A9, A4, A71 embankments
  • Toxic-waste dumps with 2–4 layer mineral sealing (40 000 m²–80 000 m²)
Jan 1993 - Dec 1996
4 years
Germany

Project Manager Geotechnical Engineering

Jena-Geos-Ingenieurbüro GmbH

  • Soil investigation and geotechnical foundation consultancy
  • Soil and rock mechanics, engineering geology, geosynthetics, environmental geotechnics
  • Head of soil mechanics laboratory

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Construction (32.5 years), Real Estate (6 years), Manufacturing (3.5 years), Energy (1 year), and Utilities (0.5 years).

Construction
Real Estate
Manufacturing
Energy
Utilities

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Project Management (26.5 years), Operations (13.5 years), Production (5.5 years), Research and Development (4 years), and Product Development (3.5 years).

Project Management
Operations
Production
Research and Development
Product Development

Summary

With over 30 years of work experience on national and international large-scale projects, I offer comprehensive expertise and hands-on leadership in infrastructure, civil engineering, and specialized deep excavation. The project volumes I managed regularly ranged in the two- and three-digit millions. My focus is on technical management, quality-assured execution, and coordination of demanding construction processes in service phases 6 to 9.

Skills

Service Range – Hoai Lph 6 To 9

  • Lph 6 – Preparation Of Awards
  • Creating Structured Bills Of Quantities
  • Coordinating Technical Interfaces And Quantity Estimates
  • Supporting The Readiness Of Tender Documents
  • Lph 7 – Participation In Awarding
  • Technical Bid Review And Price Comparisons
  • Supporting Bidder Communication And Renegotiations
  • Preparing Award Proposals
  • Lph 8 – Site Supervision (According To Hoai And Vob/b)
  • Monitoring Quality, Schedule, And Costs
  • Coordinating Contractors, Tracking Progress
  • Inspections, Defect Management, Invoice Review, Documentation
  • Lph 9 – Project Closeout Support
  • Warranty Tracking And Technical Support
  • Condition Assessments And Reports
  • Final Documentation And Handover

Shaft Structures / Underwater Concrete Bases

  • Bored Pile Shafts & Slurry Wall Shafts
  • Construction & Finishing Of Large Shafts
  • Dimensions Up To 50 M Deep And 35 M Wide
  • Underwater Concrete Bases (Anchored)
  • Construction Under Groundwater Pressure
  • Sealing / Load Transfer Under The Toughest Conditions

Complex Deep Foundations With Dive Support

  • Accompanying Dive Operations For Soil & Concrete Work
  • Visual Inspections, In-place Parts & Reinforcement Underwater

Planning, Project Supervision, Execution

  • Technical Management & Safety Coordination
  • Interface Between Excavation Support And Deep Foundations

Change Order And Claim Management (For Lph 6–9)

  • Identifying Entitlement Situations
  • Developing Technical And Timeline-based Claim Documentation
  • Supporting Processing And Communication

Managing And Optimizing Complex Construction Processes

  • Analyzing Complex Workflows And Performance Processes
  • Identifying Technical Bottlenecks And Process Disruptions
  • Setting Up And Moderating Lean Management Structures – Last Planner Method For Schedule, Timeline, And Resource Optimization (Workshop-based)

Sige Coordination Under The German Construction Site Ordinance (Baustellv)

  • Creating And Updating The Safety And Health Plan (Per Rab 30)
  • Early Notification, Coordinating Safety-related Interfaces
  • Integrating Safety Processes Into Schedule And Workflow Planning
  • Qualification Under Rab 30 (Modules B & C) Completed

Soil Assessment And Foundation Consulting According To Din 4020

  • Assessing Soil Conditions To Derive Technical Measures
  • Contributing To The Evaluation Of Soil Parameters And Exploration Results
  • Geotechnics As A Single Source – Handled Personally Or Coordinated With Experts
  • Settlement Calculations (Uniaxial / Multiaxial Loaded Areas)
  • Slope And Excavation Stability Proofs (Bishop / Janbu)
  • Bearing Capacity And Terrain Failure Safety Analyses
  • Drawdown Cone Analysis And Design Of Temporary Water Control
  • Soil Mechanics / Rock Mechanics – Exploration, Design, Forecasting, Monitoring

Deployment Profile

  • Main Focus: Lph 6–9, Sige Coordination, Change Order And Claim Management, Lean Construction Management, Soil Assessment
  • Technical Project Support On Both Sides Of Award – Hands-on, Solution-oriented, Responsible
  • Available For Operational Management, On-site Consulting, And Technical Project Support

Additional Skills

  • Organization: Project Management, Construction Management, Production Management, Technical Development, Business Development
  • Computer: Ms Office (Excel, Word, Powerpoint), Basic Autocad, Various Process Software

Key Qualifications (Relevant To Tunnelling/microtunnelling/pipe Jacking/direct Pipe)

  • Project And Construction Management Of Full-face Tbm (Hard-rock Double Gripper, Epb System, Mix-shield Slurry System), Pipe Jacking/microtunnelling/direct Pipe (Herrenknecht) With Fluid-supported Cutterhead, Open Shield Pipe Jacking With Tunnel Digger, Scraper, Semi-cutting Or Roller Cutter; Diameters Id 600 To Id 3000, Auger Boring With Rod Pilot System (Perforator/mts)
  • Project And Construction Management Of Natm Tunnel Excavation By Drill & Blast And Rock Support With Friction/fully Grouted Anchors, Wire Mesh, Shotcrete; Cross-sections Up To 130 M²
  • Project And Construction Management Of Manned Pipe Jacking In Nominal Diameters Id 1200 To Id 3000, Including Pressurized Air Locks For Personnel And Materials From Id 1600 Up
  • Project And Construction Management For Muck Handling With Separation Plants (Schauenburg, Bauer, Derrick) Up To 700 M³/h And Mobile Sludge Dewatering (Centrifuge, Chamber Filter Press)
  • Project And Construction Management For Muck Processing With Stationary Hard Rock Crushers (Up To 1,250 T/h) And Mobile Crushers (Up To 750 T/h)
  • Special Subsoil And Underground Condition Knowledge To Optimize Cutterheads; Special Groundwater Knowledge To Improve Tunnelling, Pipe Jacking, And Microtunnelling
  • Design Of Sinking Shafts; Site-built Shafts In In-situ Concrete; Diameters 2.4 M To 25 M, Depth < 36 M
  • Design Of Shaft Start And Reception Pits With Concrete Piles, Mixed-in-place Piles, Secant Piles, Sheet Piles, Etc.; Diameter Up To 25 M, Depth < 40 M

Languages

German
Native
English
Advanced
Spanish
Advanced
Arabic
Elementary
Hebrew
Elementary

Education

Oct 1986 - Jun 1992

Technische Universität Clausthal

M.Sc. Geology / Diplom Geologist, Engineering Geology · Geology · Clausthal-Zellerfeld, Germany

Oct 1984 - Jun 1986

Universität Hamburg

Pre-degree examination · Business administration · Hamburg, Germany

Oct 1974 - Jun 1983

Gymnasium in Borgfelde

A-level exam, University entrance diploma · Hamburg, Germany

Certifications & licenses

Driving licence: B

Qualification under RAB 30 (Modules B & C) completed

Profile

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Andrés based?

Andrés is based in Waren (Müritz), Germany and can operate in on-site, hybrid, and remote work models.

What languages does Andrés speak?

Andrés speaks the following languages: German (Native), English (Advanced), Spanish (Advanced), Arabic (Elementary), Hebrew (Elementary).

How many years of experience does Andrés have?

Andrés has at least 33 years of experience. During this time, Andrés has worked in at least 14 different roles and for 13 different companies. The average length of individual experience is 2 years and 11 months. Note that Andrés may not have shared all experience and actually has more experience.

What roles would Andrés be best suited for?

Based on recent experience, Andrés would be well-suited for roles such as: Freelancer, Project Director Infrastructure, Project Director Tunnelling.

What is Andrés's latest experience?

Andrés's most recent position is Freelancer at ALGK-BAUPRO.

What companies has Andrés worked for in recent years?

In recent years, Andrés has worked for ALGK-BAUPRO, VINCI GeoInfrastructure GmbH Deutschland, Implenia Construction GmbH, and Gebrüder Karstens GmbH & Co KG.

Which industries is Andrés most experienced in?

Andrés is most experienced in industries like Construction, Real Estate, and Manufacturing. Andrés also has some experience in Energy and Utility Services.

Which business areas is Andrés most experienced in?

Andrés is most experienced in business areas like Project Management, Operations, and Production/Manufacturing. Andrés also has some experience in Research and Development (R&D) and Product Development.

Which industries has Andrés worked in recently?

Andrés has recently worked in industries like Construction, Energy, and Utility Services.

Which business areas has Andrés worked in recently?

Andrés has recently worked in business areas like Operations and Project Management.

What is Andrés's education?

Andrés holds a Master in Geology from Technische Universität Clausthal.

Does Andrés have any certificates?

Andrés has 2 certificates. These include: Driving licence: B and Qualification under RAB 30 (Modules B & C) completed.

What is the availability of Andrés?

Andrés is immediately available full-time for suitable projects.

What is the rate of Andrés?

Andrés's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.

How to hire Andrés?

To hire Andrés, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

1200
900
600
300
Market avg: 850-1010 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.