Sebastian Hellmann - Project manager KG400 LP 2 to 3

Q: Where is Sebastian based?

Sebastian is based in Dankerode, Germany .

Q: What languages does Sebastian speak?

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

Q: How many years of experience does Sebastian have?

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.

Q: What is Sebastian's latest experience?

Sebastian's most recent position is Project manager KG400 LP 2 to 3 at Ernst-Reuter-Gesamtschule .

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

In recent years, Sebastian has worked for Ernst-Reuter-Gesamtschule , Schadow-Gymnasium , Diakonie-Krankenhaus Harz , Hochhaus Stuttgart , and Mehrzweckhalle Wiernsheim .

Q: Which industries is Sebastian most experienced in?

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

Q: Which business areas is Sebastian most experienced in?

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

Q: Which industries has Sebastian worked in recently?

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

Q: Which business areas has Sebastian worked in recently?

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

Recommended expert

Dankerode, Germany

Experience

Jan 2025 - Mar 2025

3 months

Berlin, Germany

Project manager KG400 LP 2 to 3

Ernst-Reuter-Gesamtschule

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

Jan 2025 - Mar 2025

3 months

Berlin, Germany

Project manager KG400 LP 3

Schadow-Gymnasium

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

Apr 2024 - Feb 2025

11 months

Germany

Concept development and planning KG410/420/430 phases 1 to 9

Diakonie-Krankenhaus Harz

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

Sep 2023 - Feb 2025

1 year 6 months

Gerlingen, Germany

Project manager for concept development and planning KG410/420/430 phases 3 to 7

Hochhaus 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 concept development and planning KG410/420/430 phases 1 to 7

Mehrzweckhalle 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 precision climate cabinets for an association server room
Costs: -- million € net

Dec 2022 - Jan 2023

2 months

Germany

Analysis and evaluation of a heat supply concept

Mansfeld-Südharz municipal utilities

Analysis and evaluation of the municipal utilities' heat supply concept
Costs: -- million € net

Jul 2022 - Aug 2023

1 year 2 months

Berlin, Germany

Planning of HVAC and outdoor areas LP 3 to 5

Residential Buildings Berlin

Planning HVAC and outdoor areas 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 areas LP 1 to 2

Güntersberge Fire Department

Concept development and planning KG410/420/430 and outdoor areas for Güntersberge Fire Department

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 various rental areas
Costs: -- million € net

Feb 2022 - Aug 2023

1 year 7 months

Cologne, Germany

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

University Hospital Cologne

New construction of the dissection room at University Hospital Cologne
Cost: --,- million € net

Dec 2021 - Aug 2022

9 months

Berlin, Germany

Concept development and planning of HVAC technology phases 1 to 5

Apartment buildings in Berlin

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

Sep 2021 - May 2022

9 months

Concept development and planning of HVAC technology phases 1 to 4

Pharmaceutical company

Concept development and planning of HVAC technology for a canteen with an industrial kitchen (500 meals per day)
HLS cost: -,- million € net

Aug 2021 - Mar 2025

3 years 8 months

Harzgerode, Germany

Concept development and planning of ventilation technology phases 1 to 9

Harzgerode Elementary School

Concept development and planning of ventilation technology
Ventilation cost: 0.36 million € net

Nov 2018 - Nov 2022

4 years 1 month

Magdeburg, Germany

Preparation, supervision, review, and project management in the HVAC sector

Saxony-Anhalt Police Inspection

Preparation of tenders and construction supervision for replacement buildings of the North Police Inspection
Review of HVAC planning for 'Police Inspection Magdeburg' and other replacement buildings
Reviewing, adjusting, and organizing the tenders; project processing for phase 7; and project execution
HLS cost: -, million € net

Eisleben, Germany

Building services planning within general planning phases 1-8 and project management

Eisleben Municipal Utilities

New build of a CHP plant with 1,999 kW el for Eisleben Municipal Utilities
HVAC costs: €1.450 million net

Sangerhausen, Germany

Building services planning within general planning phases 1-8, phases 1-2, and project management

Sangerhausen Municipal Utilities

New build of a CHP plant with 1,999 kW el + buffer storage (total volume = 200 m³) and development and integration of a buffer storage management
HVAC costs: €1.620 million net
Heat supply concept for a new heating plant, 3 MW th, and expansion of the district heating network
HVAC cost estimate: €3.600 million net

Bitterfeld-Wolfen, Germany

Building services planning within general planning phases 1-5 and project management

Former DIY store

Conversion of a former DIY store in Bitterfeld-Wolfen
HVAC costs: €0.067 million net

Leipzig, Germany

Building services planning within general planning phases 1-8

New build multi-family house, 8 units

New build multi-family house, 8 units in Leipzig
HVAC costs: €0.165 million net

Hettstedt, Germany

Building services planning within general planning phases 1-8 and project management

Hettstedt Underground Car Park

New build of a ventilation system for an underground car park in Hettstedt
HVAC costs: €0.032 million net

Eisleben, Germany

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

Boiler system replacement

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

Querfurt, Germany

MEP planning as part of general planning LP 1-8

Retirement and care home

CHP unit with peak load generation to heat a retirement and care home in Querfurt
HKS costs: €0.086 million net

Aschersleben, Germany

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

Dermatology practice

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

Eisleben, Germany

MEP planning as part of general planning LP 1-8

Helfta fire department

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

Eisleben, Germany

MEP planning as part of general planning LP 1-6

Production site Eisleben

District heating generation concept to supply a production site with return feed-in
HKS costs: €0.135 million net

Osterburg, Germany

Cost calculation, offer preparation and project management for HKS

Edeka

Renovation of an Edeka in Osterburg
HLS costs: 0,450 Mio € net

Halle (Saale), Germany

Project management for HK

Martin-Luther University Halle/Wittenberg

New construction of the protein center at Martin-Luther University Halle/Wittenberg in Halle/Saale
HK costs: 1,300 Mio € net

Sarstedt, Germany

Cost calculation, offer preparation and project management for HKS

Sarstedt municipal operations yard

New construction of the municipal operations yard in Sarstedt
HKS costs: 0,120 Mio € net

Quedlinburg, Germany

Building services planning as part of general planning, service phases 1 to 4

New build of a 14-unit multi-family residential building

New construction of a 14-unit multi-family residential building in Quedlinburg
HKS costs: 0,380 Mio € net

Quedlinburg, Germany

Building services planning

Nursing and care home

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

Magdeburg, Germany

Project management for HKS

Max Planck Institute

Extension of the ventilation system for the labs at the Max Planck Institute in Magdeburg
HKS costs: €0.065 million net

Cost calculation, offer preparation and project management for HKS

New construction of a production hall

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

Harzgerode, Germany

Building services planning as part of the general planning phases 1-5 and project management

Hotel Morada

Piping renovation at Hotel Morada in Alexisbad
HKS costs: €0.040 million net

Building services planning as part of the general planning phases 1-5 and project management

Rheinmetall Defense

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

Wittenberg, Germany

Cost calculation, offer preparation and project execution for HKS

Wittenberg Castle Church

Renovation of the castle church in Wittenberg
HKS costs: €0.750 million net

Wittmar, Germany

Project management for HVAC

New construction of a sewage treatment plant

New construction of a sewage treatment plant in Wittmar
HVAC costs: €0.120 million net

Magdeburg, Germany

Cost calculation, proposal preparation and project execution for HVAC

Sportpark life

Renovation of Sportpark life
HVAC costs: €0.500 million net

Derenburg, Germany

Technical building services planning as part of general planning LP 1-8

Glasmanufaktur

New construction of café and kitchen and extension of the smoke extraction system
HLS costs: €0.050 million net

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 (6.5 years), Government and Administration (4 years), Education (3.5 years), Real Estate (3 years), Healthcare (1.5 years), and Information Technology (1 year).

Construction

Government and Administration

Education

Real Estate

Healthcare

Information Technology

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 (6.5 years), Procurement (4 years), Product Development (1.5 years), Information Technology (1 year), and Operations (0.5 years).

Project Management

Procurement

Product Development

Information Technology

Operations

Languages

German

Native

English

Advanced

Profile

Created

August 2025

Need a freelancer? Find your match in seconds.

Try FRATCH GPT

Frequently asked questions

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

Where is Sebastian based?

Sebastian is based in Dankerode, Germany.

What languages does Sebastian speak?

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

How many years of experience does Sebastian have?

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.

What roles would Sebastian be best suited for?

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

What is Sebastian's latest experience?

Sebastian's most recent position is Project manager KG400 LP 2 to 3 at Ernst-Reuter-Gesamtschule.

What companies has Sebastian worked for in recent years?

In recent years, Sebastian has worked for Ernst-Reuter-Gesamtschule, Schadow-Gymnasium, Diakonie-Krankenhaus Harz, Hochhaus Stuttgart, and Mehrzweckhalle Wiernsheim.

Which industries is Sebastian most experienced in?

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

Which business areas is Sebastian most experienced in?

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

Which industries has Sebastian worked in recently?

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

Which business areas has Sebastian worked in recently?

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

What is the availability of Sebastian?

Sebastian is immediately available for suitable projects.

What is the rate of Sebastian?

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