Gerald Stibbe - Rohr2 Calculations

Q: Where is Gerald based?

Gerald is based in Leverkusen, Germany and can operate in on-site , hybrid , and remote work models.

Q: What languages does Gerald speak?

Gerald speaks the following languages: German (Native), English (Advanced), Dutch (Intermediate), Russian (Elementary) .

Q: How many years of experience does Gerald have?

Gerald has at least 32 years of experience. During this time, Gerald has worked in at least 14 different roles and for 18 different companies . The average length of individual experience is 2 years and 8 months . Note that Gerald may not have shared all experience and actually has more experience.

Q: What is Gerald's latest experience?

Gerald's most recent position is Rohr2 Calculations at B+L Engineering GmbH .

Q: What companies has Gerald worked for in recent years?

In recent years, Gerald has worked for B+L Engineering GmbH , Plandor GmbH , D&W Montage- und Schweißtechnik GmbH , and IB Sbresny GmbH & Co. KG .

Q: Which industries is Gerald most experienced in?

Gerald is most experienced in industries like Chemical , Energy , and Construction . Gerald also has some experience in Manufacturing , Agriculture , and Professional Services .

Q: Which business areas is Gerald most experienced in?

Gerald is most experienced in business areas like Product Development , Project Management , and Operations . Gerald also has some experience in Supply Chain Management , Sales , and Production/Manufacturing .

Q: Which industries has Gerald worked in recently?

Gerald has recently worked in industries like Chemical , Energy , and Manufacturing .

Q: Which business areas has Gerald worked in recently?

Gerald has recently worked in business areas like Project Management and Product Development .

Recommended expert

Leverkusen, Germany

Experience

Nov 2024 - Present

1 year 4 months

Rohr2 Calculations

B+L Engineering GmbH

Various clients, contract-based

Jul 2024 - Present

1 year 8 months

Rohr2 Calculations

Plandor GmbH

Client BP Gelsenkirchen, contract-based

Jan 2021 - Jun 2024

3 years 6 months

Rohr2 Calculations

D&W Montage- und Schweißtechnik GmbH

Client BP Gelsenkirchen, contract-based

Jun 2020 - Dec 2020

7 months

Rohr2 Calculations

Bilfinger Engineering & Maintenance GmbH

Various clients, work contract / contract-based

Aug 2019 - May 2020

10 months

Senior Project Engineer Piping Design, Inspection and Testing

Brunel/Messer GmbH

Air separation plant Speyer, work contract

Sep 2017 - Aug 2019

2 years

Caesar II Calculations

EDL Anlagenbaugesellschaft mbH

Projects Tatneft/Russia, Heraeus Bitterfeld, H&R Hamburg, contract work

Jun 2017 - Dec 2018

1 year 7 months

Rohr2/Caesar II Calculations

VESCON Process GmbH

Clients BASF, Josef Meissner, JCS/TÜV Süd Munich, contract work

Feb 2017 - Present

9 years 1 month

Rohr2 Calculations

IB Sbresny GmbH & Co. KG

Client Evonik Marl, maintenance and shutdown projects, contract work

Nov 2015 - Jan 2017

1 year 3 months

Project Engineer/Senior Pipe Stress Analyst

Weber Engineering GmbH

Bid preparation and pipe stress calculation for small projects
Administrative handling/technical project management for small piping projects including coordination and supervision of subcontractors
Pipe stress calculations with Rohr2 for clients in chemical and petrochemical industries

Mar 2015 - Nov 2015

9 months

Senior Pipe Stress Analyst

Oswald Iden GmbH

Mitsubishi Hitachi Duisburg, pipe stress calculations with Rohr2 for the Turow power plant project (Poland)
AMS Bottrop, pipe stress calculations with Rohr2 and Caesar II for Evonik Marl and Remondis Lünen

May 2014 - Mar 2015

11 months

Piping/FEM Analyst

SPLU Experts GmbH

ANÜ Technip Düsseldorf, pipe stress analysis with Caesar II for BASF Ludwigshafen, chlorine plant expansion

Sep 2012 - May 2014

1 year 9 months

Project Engineer / Senior Pipe Stress Engineer

Weber Engineering GmbH

Offer preparation and costing for pipe stress analysis / small projects
Technical leadership of up to 2 temporary piping analysts
Administrative and technical project management for small piping projects, including coordination and supervision of subcontractors
Pipe stress analysis for chemical and petrochemical clients using Caesar II and Rohr2

May 2008 - Aug 2012

4 years 4 months

Project Engineer / Senior Pipe Stress Engineer

M+W Inducon GmbH

Offer preparation and costing for pipe stress calculations
Training and technical leadership of up to 3 pipe stress engineers
Administrative and technical project management for various small piping projects (modifications and change designs)
Pipe stress analysis for LyondellBasell, Dynamit Nobel and Covestro using Caesar II and Rohr2
2-year secondment to TGE Gas Engineering Bonn (calculations in refrigeration technology/liquefied gas systems using Caesar II)

Nov 2006 - May 2008

1 year 7 months

Piping Engineer / Senior Pipe Stress Engineer

Aker Process GmbH

Pipe stress analysis for international chemical and petrochemical clients using Caesar II
Conventional piping design (creating isometrics and piping drawings in MicroStation, flexibility analysis according to AD2000-HP100R)

Sep 2003 - Nov 2006

3 years 3 months

Piping Engineer / Pipe Stress Engineer

Jacobs Projects GmbH

Pipe stress analysis for international chemical and petrochemical clients using Caesar II
Conventional piping design (creating isometrics and piping drawings in MicroStation, flexibility analysis according to AD2000-HP100R)
20-month overseas assignment at the European headquarters in Leiden, NL

Aug 1998 - Aug 2003

5 years 1 month

Project Engineer / Project Manager

M Plan GmbH

Support of the elevated flare system at the Shell Rheinland Refinery Nord Cologne (back pressure calculation, pressure drop calculation, documentation)
New design, modification and change engineering for piping and equipment for Shell Rheinland Refinery Nord Cologne, Ineos Cologne and Bayer AG Leverkusen/Dormagen
Conventional piping design including creating isometrics and special supports in MicroStation, preparing quantity take-offs and elasticity checks according to AD2000-HP100R
Pipe stress calculation with Caesar II and implementation of the support concept as part of a major project

Apr 1996 - Sep 1997

1 year 6 months

Quotation / Piping Engineer

MAN GHH Öl und Gas GmbH

Preparation of bids for projects in piping and plant engineering (oil production and petrochemicals)
Site support and on-site measurements for RASCO/Libya

Dec 1994 - Mar 1996

1 year 4 months

Technical Employee

BHK Rohr- und Anlagenbau GmbH

Preparation of bids for projects in piping and plant engineering (chemical and waste incineration plants)
Site support and on-site measurements

May 1987 - Aug 1988

1 year 4 months

Plant Operator

Hydro Agri GmbH

Operation and maintenance of fertilizer production plants

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 Chemical (23.5 years), Energy (12 years), Construction (3 years), Manufacturing (1.5 years), Agriculture (1.5 years), and Professional Services (0.5 years).

Chemical

Energy

Construction

Manufacturing

Agriculture

Professional Services

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 Product Development (24 years), Project Management (22.5 years), Operations (2.5 years), Supply Chain Management (1.5 years), Sales (1.5 years), and Production (1.5 years).

Product Development

Project Management

Operations

Supply Chain Management

Sales

Production

Summary

I have a long history in piping calculations and structural analysis, working on projects for clients in the chemical and petrochemical industries. I specialize in Rohr2 and Caesar II calculations, ensuring precise engineering from initial planning to final approval. I adapt easily to various project demands and contribute reliably to both small and large-scale works.

My experience spans across multiple companies where I navigated contract-based assignments, international projects, and lasting technical challenges. My hands-on approach and focus on quality have consistently delivered practical and well-calculated solutions.

Languages

German

Native

English

Advanced

Dutch

Intermediate

Russian

Elementary

Education

Oct 1988 - Jun 1994

Diploma in Mechanical Engineering · Mechanical Engineering

Oct 1981 - Jun 1984

Machinist

Profile

Created

September 2025

Last Update

January 2026

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Frequently asked questions

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

Where is Gerald based?

Gerald is based in Leverkusen, Germany and can operate in on-site, hybrid, and remote work models.

What languages does Gerald speak?

Gerald speaks the following languages: German (Native), English (Advanced), Dutch (Intermediate), Russian (Elementary).

How many years of experience does Gerald have?

Gerald has at least 32 years of experience. During this time, Gerald has worked in at least 14 different roles and for 18 different companies. The average length of individual experience is 2 years and 8 months. Note that Gerald may not have shared all experience and actually has more experience.

What roles would Gerald be best suited for?

Based on recent experience, Gerald would be well-suited for roles such as: Rohr2 Calculations, Senior Project Engineer Piping Design, Inspection and Testing, Caesar II Calculations.

What is Gerald's latest experience?

Gerald's most recent position is Rohr2 Calculations at B+L Engineering GmbH.

What companies has Gerald worked for in recent years?

In recent years, Gerald has worked for B+L Engineering GmbH, Plandor GmbH, D&W Montage- und Schweißtechnik GmbH, and IB Sbresny GmbH & Co. KG.

Which industries is Gerald most experienced in?

Gerald is most experienced in industries like Chemical, Energy, and Construction. Gerald also has some experience in Manufacturing, Agriculture, and Professional Services.

Which business areas is Gerald most experienced in?

Gerald is most experienced in business areas like Product Development, Project Management, and Operations. Gerald also has some experience in Supply Chain Management, Sales, and Production/Manufacturing.

Which industries has Gerald worked in recently?

Gerald has recently worked in industries like Chemical, Energy, and Manufacturing.

Which business areas has Gerald worked in recently?

Gerald has recently worked in business areas like Project Management and Product Development.

What is Gerald's education?

Gerald holds a Bachelor in Mechanical Engineering.

What is the availability of Gerald?

Gerald is immediately available full-time for suitable projects.

What is the rate of Gerald?

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