Gerald S.-Rohr2 Calculations
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Experience
Rohr2 Calculations
B+L Engineering GmbH
- Various clients, contract-based
Rohr2 Calculations
Plandor GmbH
- Client BP Gelsenkirchen, contract-based
Rohr2 Calculations
D&W Montage- und Schweißtechnik GmbH
- Client BP Gelsenkirchen, contract-based
Rohr2 Calculations
Bilfinger Engineering & Maintenance GmbH
- Various clients, work contract / contract-based
Senior Project Engineer Piping Design, Inspection and Testing
Brunel/Messer GmbH
- Air separation plant Speyer, work contract
Caesar II Calculations
EDL Anlagenbaugesellschaft mbH
- Projects Tatneft/Russia, Heraeus Bitterfeld, H&R Hamburg, contract work
Rohr2/Caesar II Calculations
VESCON Process GmbH
- Clients BASF, Josef Meissner, JCS/TÜV Süd Munich, contract work
Rohr2 Calculations
IB Sbresny GmbH & Co. KG
- Client Evonik Marl, maintenance and shutdown projects, contract work
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
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
Piping/FEM Analyst
SPLU Experts GmbH
- ANÜ Technip Düsseldorf, pipe stress analysis with Caesar II for BASF Ludwigshafen, chlorine plant expansion
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
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)
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)
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
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
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
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
Plant Operator
Hydro Agri GmbH
- Operation and maintenance of fertilizer production plants
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Chemical, Energy, Construction, Manufacturing, Agriculture, and Professional Services.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Product Development, Project Management, Operations, Supply Chain Management, Sales, and 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
Education
Diploma in Mechanical Engineering · Mechanical Engineering
Machinist
Statistics
Experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Gerald is based in Leverkusen, Germany and can operate in on-site, hybrid, and remote work models.
Gerald speaks the following languages: German (Native), English (Advanced), Dutch (Intermediate), Russian (Elementary).
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.
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.
Gerald's most recent position is Rohr2 Calculations at B+L Engineering GmbH.
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.
Gerald is most experienced in industries like Chemical, Energy, and Construction. Gerald also has some experience in Manufacturing, Agriculture, and Professional Services.
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.
Gerald has recently worked in industries like Chemical, Energy, and Manufacturing.
Gerald has recently worked in business areas like Project Management and Product Development.
Gerald holds a Bachelor in Mechanical Engineering.
The availability of Gerald needs to be confirmed.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 7 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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