Sebastian Hellmann - Project Manager for KG400 LP 2 to 3

🚀 FRATCH GPT 2.0 - Find freelancers with a single prompt. Now including price benchmarking.

Recommended expert

Dankerode, Germany

Check rate

Experience

Jan 2025 - Mar 2025

3 months

Berlin, Germany

Project Management KG400 LP 2 to 3

Ernst-Reuter-Comprehensive School

New construction and renovation of the Ernst-Reuter-Comprehensive School, Berlin
Costs: --,- million € net

Jan 2025 - Mar 2025

3 months

Berlin, Germany

Project Management KG400 LP 3

Schadow-Gymnasium

New construction and renovation of the Schadow-Gymnasium, Berlin
Costs: --,- million € net

Apr 2024 - Feb 2025

11 months

Germany

Concept development and planning of KG410/ 420/ 430 LP 1 to 9

Diakonie Hospital Harz

Renovation of a building at Diakonie Hospital Harz
Costs: --,- million € net

Sep 2023 - Feb 2025

1 year 6 months

Gerlingen, Germany

Project Manager for the concept development and planning of KG410/ 420/ 430 LP 3 to 7

High-rise Building Stuttgart

Renovation of a high-rise building in Stuttgart, Gerlingen
Costs: --,- million € net

Sep 2023 - Sep 2024

1 year 1 month

Wiernsheim, Germany

Project Manager for the concept development and planning of KG410/ 420/ 430 LP 1 to 7

Multipurpose Hall Wiernsheim

Renovation of a multipurpose hall (1,000 people) in Wiernsheim
Costs: --,- million € net

Jul 2023 - Jun 2024

1 year

Germany

Planning of precision climate cabinets LP 1 to 9

KV Saxony-Anhalt

Planning of precision climate cabinets for a server room of KV
Costs: --, million € net

Dec 2022 - Jan 2023

2 months

Germany

Analysis and assessment of a heat supply concept

City Utilities Mansfeld-Südharz

Analysis and assessment of a heat supply concept for the city utilities
Costs: -,- million € net

Jul 2022 - Aug 2023

1 year 2 months

Berlin, Germany

Planning of HVAC systems and outdoor facilities LP 3 to 5

Residential Buildings Berlin

Planning of HVAC systems and outdoor facilities for residential buildings in Berlin
Costs: -,- million € net

Jun 2022 - Nov 2022

6 months

Güntersberge, Germany

Concept development and planning KG410/ 420/ 430 and outdoor facilities LP 1 to 2

Fire Station Güntersberge

Concept development and planning of KG410/ 420/ 430 and outdoor facilities for Fire Station Güntersberge

Mar 2022 - Aug 2023

1 year 6 months

Bochum, Germany

Concept development and planning KG410/ 420/ 430/ 470 LP 5

Viktoria Karree

New build Viktoria Karree in Bochum for different rental areas
Costs: -,- million € net

Feb 2022 - Aug 2023

1 year 7 months

Cologne, Germany

Planning KG410/ 420/ 430/ 470 LP 5 to 7

University Hospital Cologne

New construction of the autopsy department at the University Hospital in Cologne
Cost: --,- million € net

Dec 2021 - Aug 2022

9 months

Berlin, Germany

Concept development and planning of HVAC engineering LP 1 to 5

Apartment Buildings Berlin

Concept development and planning of HVAC engineering for 4 apartment buildings with underground garage in Berlin
Cost: -,- million € net

Sep 2021 - May 2022

9 months

Concept development and planning of HVAC engineering LP 1 to 4

Pharmaceutical Company

Concept development and planning of HVAC engineering for a cafeteria with a large kitchen (500 meals per day)
Cost HVAC: -,- million € net

Aug 2021 - Mar 2025

3 years 8 months

Harzgerode, Germany

Concept development and planning of ventilation systems LP 1 to 9

Harzgerode Primary School

Concept development and planning of ventilation systems
Cost V: 0.36 million € net

Nov 2018 - Nov 2022

4 years 1 month

Magdeburg, Germany

Development, support, review and project handling in the HVAC field

Police Inspectorate Saxony-Anhalt

Preparation of tendering processes and site supervision for replacement buildings of the North Police Inspectorate
Review of the HVAC planning for the “Magdeburg Police Inspectorate” as well as other replacement buildings
Review, adjustment and organization of the tenders, project handling through LP 7 as well as project handling
Cost HVAC: million -, € net

Eisleben, Germany

MEP planning as part of general planning LP 1-8 and project management

Stadtwerke Eisleben

New construction of a CHP plant with 1,999 kW el for Stadtwerke Eisleben
Costs HKS: €1.450 million net

Sangerhausen, Germany

MEP planning as part of general planning LP 1-8, LP 1-2 and project management

Stadtwerke Sangerhausen

New construction of a CHP plant with 1,999 kW el + buffer storage (total volume = 200 m³) as well as the development and integration of a buffer storage management system
Costs HLS: €1.620 million net
Heat supply concept for new 3 MWth heating plant and expansion of the district heating line
Cost estimate HLS: €3.600 million net

Bitterfeld-Wolfen, Germany

MEP planning as part of general planning LP 1-5 and project management

Former DIY store

Conversion of a former DIY store in Bitterfeld-Wolfen
Costs HKS: €0.067 million net

Leipzig, Germany

MEP planning as part of general planning LP 1-8

New apartment building with 8 residential units

New apartment building with 8 residential units in Leipzig
Costs HKS: €0.165 million net

Hettstedt, Germany

MEP planning as part of general planning LP 1-8 and project management

Underground car park Hettstedt

New ventilation system for an underground car park in Hettstedt
Costs HKS: €0.032 million net

Eisleben, Germany

Building services planning as part of general planning LP 1-8 and project management

Boiler Plant Replacement

Replacement of an 8 MW boiler plant and adjustment of the heat distribution network with peripherals
HKS costs: €0.413 million net

Querfurt, Germany

Building services planning as part of general planning LP 1-8

Nursing Home

CHP unit with peak load generation for heating a nursing home in Querfurt
HKS costs: €0.086 million net

Aschersleben, Germany

Building services planning as part of general planning LP 1-8 and project management

Dermatology Practice

Cooling of a dermatology practice in Aschersleben
Cooling costs: €0.025 million net

Eisleben, Germany

Building services planning as part of general planning LP 1-8

Fire Station Helfta

Heat supply for a fire station in Helfta
HLS costs: €0.015 million net

Eisleben, Germany

Building services planning as part of general planning LP 1-6

Production Facility Eisleben

District heating generation concept for supplying a production facility with feed-in
HKS costs: €0.135 million net

Osterburg, Germany

Cost estimation, preparing offers, and project management for HKS

Edeka

Renovation of an Edeka in Osterburg
HLS costs: €0.450 million net

Halle (Saale), Germany

Project management for HK

Martin-Luther-University Halle/ Wittenberg

New build of the protein center of Martin-Luther-University Halle/ Wittenberg in Halle/ Saale
HK costs: €1.300 million net

Sarstedt, Germany

Cost estimation, preparing offers, and project management for HKS

Baubetriebshof Sarstedt

New build of the municipal works yard in Sarstedt
HKS costs: €0.120 million net

Quedlinburg, Germany

MEP planning as part of the general planning LP 1-4

New build of a 14-unit apartment building

New build of a 14-unit apartment building in Quedlinburg
HKS costs: €0.380 million net

Quedlinburg, Germany

MEP planning

Nursing and care home

Preparation and support of the expert acceptance inspection of a nursing and care home (178 rooms)
Completion 04-2017

Magdeburg, Germany

Project management for HVAC

Max Planck Institute

Expansion of the ventilation system for the laboratories at the Max Planck Institute in Magdeburg
HVAC costs: €0.065 million net

Cost estimation, proposal preparation and project management for HVAC

New construction of a production hall

Use of two gas engine heat pumps for heating and cooling
HVAC costs: €0.380 million net

Harzgerode, Germany

MEP planning as part of general planning LP 1-5 and project management

Hotel Morada

Pipe riser renovation at Hotel Morada in Alexisbad
HVAC costs: €0.040 million net

MEP planning as part of general planning LP 1-5 and project management

Rheinmetall Defense

New construction and optimization of heat generation and distribution for a production and storage hall
HVAC costs: €0.075 million net

Wittenberg, Germany

Cost estimation, proposal preparation and project execution for HVAC

Castle Church Wittenberg

Renovation of Castle Church in Wittenberg
HVAC costs: €0.750 million net

Wittmar, Germany

Project management for HKS

New construction of a wastewater treatment plant

New construction of a wastewater treatment plant in Wittmar
HKS costs: €0.120 million net

Magdeburg, Germany

Cost estimation, preparing offers and project execution for HKS

Sportpark life

Renovation of Sportpark life
HKS costs: €0.500 million net

Derenburg, Germany

TGA planning as part of the general planning LP 1-8

Glass manufactory

New construction of a café and kitchen as well as the expansion of the smoke extraction system
HLS costs: €0.050 million net

Industry experience

See where this freelancer has spent most of their professional time.

Experienced in Construction, Government and Administration, Education, Real Estate, Healthcare, and Information Technology.

Construction

Government and Administration

Education

Real Estate

Healthcare

Information Technology

Business area experience

See which departments and functions this freelancer has contributed to most.

Experienced in Project Management, Procurement, Product Development, Information Technology, and Operations.

Project Management

Procurement

Product Development

Information Technology

Operations

Languages

German

Native

English

Advanced

Statistics

Experience

Total positions 38

Experience in Construction 6.5 y

Avg length 6 m

Longest experience 4 y

Global experience

Countries worked in 1 (Germany)

Primary country Germany

Expertise

Recent roles Project Management KG400 LP 2 to 3, Project Management KG400 LP 3, Concept development and planning of KG410/ 420/ 430 LP 1 to 9

Main industries Construction, Government and Administration, Education

Main business areas Project Management, Procurement, Product Development

Profile

Member since

August 2025

Last update

August 2026

Need a freelancer? Find your match in seconds.

Try FRATCH GPT

Frequently asked questions

Have questions? Find more information here.

Sebastian is based in Dankerode, Germany.

Sebastian speaks the following languages: German (Native), English (Advanced).

Sebastian has at least 6 years of experience. During this time, Sebastian has worked in at least 15 different roles and for 15 different companies. The average length of individual experience is 5 months. Note that Sebastian may not have shared all experience and actually has more experience.

Based on recent experience, Sebastian would be well-suited for roles such as: Project Management KG400 LP 2 to 3, Project Management KG400 LP 3, Concept development and planning of KG410/ 420/ 430 LP 1 to 9.

Sebastian's most recent position is Project Management KG400 LP 2 to 3 at Ernst-Reuter-Comprehensive School.

In recent years, Sebastian has worked for Ernst-Reuter-Comprehensive School, Schadow-Gymnasium, Diakonie Hospital Harz, High-rise Building Stuttgart, and Multipurpose Hall Wiernsheim.

Sebastian is most experienced in industries like Construction, Government and Administration, and Education. Sebastian also has some experience in Real Estate, Healthcare, and Information Technology.

Sebastian is most experienced in business areas like Project Management, Procurement, and Product Development. Sebastian also has some experience in Information Technology, Operations, and Business Intelligence.

Sebastian has recently worked in industries like Construction, Government and Administration, and Education.

Sebastian has recently worked in business areas like Project Management, Procurement, and Product Development.

The availability of Sebastian needs to be confirmed.

Daily rate distribution

0 2 4 6 8

<€640 €760-800 €800-840 €840+

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.

800

600

400

200

Daily rate avg. 730 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

800

600

400

200

Median rate 780 €

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.