CONSTRUCTION · ENERGY · MARINEROTTERDAM, NL / WORLDWIDE

LEAD CONSTRUCTION MANAGER & OWNER’S REPRESENTATIVE

Bastiaan
Klasens.

Complex projects.
Real-world delivery.

I connect the project office with the field — bringing clarity to construction, contractor interfaces and commissioning.

01 / MARINE INFRASTRUCTURE
LNG jetty under construction at sunset

From the first interface to final handover.

Bastiaan Klasens

Based in Rotterdam.
Open to international roles & assignments.

THE EXPERIENCE BEHIND THE WORK

Where planning
meets execution.

I’m a construction and site leader with more than 25 years across energy and marine infrastructure — from offshore pipeline campaigns to LNG terminals and utility-scale solar.

My work sits at the point where contracts, schedules and field conditions meet. I coordinate EPC and EPCM contractors, resolve interfaces between marine and onshore work, and guide teams through mechanical completion, pre-commissioning and handover.

Currently, I represent the owner on a €250 million LNG terminal expansion in Brunsbüttel, Germany, alongside an operating FSRU terminal.

Built in the
real world.

Complex environments, multiple contractors,
and a clear line from scope to handover.

Brunsbüttel LNG jetty under construction at sunset01 / LNG INFRASTRUCTURE

Gasfin Development S.A. · Germany · 2025–present

Brunsbüttel LNG terminal expansion

Owner’s Representative for a jetty and terminal expansion alongside a live FSRU. Coordinating a reimbursable EPCM contractor and mechanical, E&I and marine subcontractors through construction and commissioning.

Expansion scope
€250m
People on site
120–130
  • Integrated schedule logic built around ICSS SAT, cause-and-effect testing and ready-for-start-up gates.
  • Mechanical completion packs, ITR A/B status, punch lists and tripartite walkdowns through Smart Completions.
  • SIMOPS, permit-to-work, LOTO and energization planning inside an operating terminal.
Floating solar installation on a lake02 / RENEWABLE ENERGY

GroenLeven / MPC Marine & Port · Netherlands & Belgium

Solar construction, on land and water

Construction and commissioning across two distinct solar projects: a 35 MW ground-mount installation in the Netherlands and a 30 MW floating park in Mons, Belgium.

Floating solar
30 MW
Ground-mounted solar
35 MW
  • Four EPC contractors across floating structures, subsurface anchoring, directional drilling and high-voltage works in Mons.
  • 60–70 workers within the main floating-structure scope, coordinated through daily site planning.
  • Ground-mount project delivered within schedule and budget, from logistics and construction to testing and handover.
Concrete-coated pipe joints at the Nord Stream 2 supply base03 / OFFSHORE PIPELINES

OAK Offshore / South Stream Transport · Germany, Turkey & Bulgaria

Keeping the pipelay campaign moving

Pipe yards, supply bases and load-out operations supporting Nord Stream 2 in the Baltic Sea and the 32-inch TurkStream pipeline in the Black Sea.

Pipe joints managed
15,000
Vessels planned
14
  • Overall responsibility for Mukran pipe yard and the Rostock supply base, set up from the ground up.
  • Safe loading, storage and transport of pipe joints and client-provided materials across two German yards.
  • Turkish marshalling yard leadership: 10 direct staff, logistics providers, inventory control and vessel supply forecasting.
Allseas Pioneering Spirit in the Port of Rotterdam04 / MARINE & OFFSHORE

Allseas / EMAS AMC / OAK Offshore · International

The systems behind the fleet

A foundation in marine operations, vessel conversions, fleet systems and logistics — connecting shoreside planning with the practical requirements of an offshore campaign.

Fleet support regions
3
Vessels with IT systems
5
  • Conversion and start-up support for Audacia and Pioneering Spirit, including workshops, stores and deck infrastructure.
  • Owner’s oversight of the Akademik Cherskiy upgrade and five-yearly class survey.
  • Inventory, maintenance systems and support processes for EMAS AMC fleets across Asia Pacific, Europe and the USA.

A career built
from the ground up.

25+ years connecting people, systems
and demanding project environments.

Oct 2025 — PresentCURRENT ROLEGasfin Development S.A.Lead Construction Manager · Owner’s RepresentativeBrunsbüttel, Germany

LNG import terminal expansion

  • Client-side delivery lead for a €250 million jetty and terminal expansion, coordinating Worley as reimbursable EPCM contractor alongside mechanical, E&I and marine subcontractors.
  • Run the construction coordination organization between the PMO, terminal operator, regulators and field teams for a site of 120–130 people. Chair daily coordination, weekly look-ahead and construction-to-commissioning handover meetings.
  • Rebuilt integrated schedule logic around commissioning gates — ICSS SAT, cause-and-effect testing, shutdown and RFSU — and secured written contractor commitments to zero-float milestones.
  • Own MC pack content, ITR A/B status, punch categories, 48-hour review windows and tripartite walkdowns through Smart Completions. Started commissioning activities early to resolve permitting and communication interfaces.
  • Govern HSE, permit-to-work and SIMOPS inside an operating terminal: jetty energization, LOTO planning, night-shift permitting, ATEX inspections and the §29b BImSchG compliance register.
  • Lead incident investigation and strengthen supervision through release hold points, permit comprehension checks and direct client oversight of E&I work.
  • Review contractor performance, staffing, variations, delay exposure and readiness for the 80 barg high-pressure leak test of marine loading arms.
  • Designed the cross-company task tracker adopted by owner and EPCM; produce commissioning ITR dashboards and SteerCo materials.
Jun 2025 — Oct 2025GroenLevenConstruction ManagerMons, Belgium

30 MW floating solar park

  • Led site execution in a technically demanding underwater anchoring environment with complex client requirements.
  • Coordinated four EPC contractors across floating structures, subsurface anchoring, directional drilling and high-voltage infrastructure; 60–70 workers within the main floating-structure scope.
  • Acted as the client’s point of contact for safety, schedule, budget, risk mitigation and daily execution issues.
Apr 2022 — May 2025MPC Marine & Port ConsultancyConstruction & Site Manager / Business Development APACNetherlands & Singapore

Solar delivery and international operations

  • Construction & Site Manager, Aug 2023–May 2025: directed a 35 MW ground-mount solar park for GroenLeven, including logistics, subcontractors, HSE, quality, testing and handover. Delivered within schedule and budget.
  • Business Development Manager APAC, Apr 2022–May 2025: established the Singapore operation and developed supply-chain processes, partnerships and client relationships for offshore equipment and services.
Jun 2020 — Nov 2021OAK Offshore · Nord Stream 2Site Manager & Client RepresentativeMukran & Rostock, Germany

Pipelay vessel upgrade, pipe yard and supply base

  • Site Manager, Jan–Nov 2021: overall responsibility for Mukran pipe yard and Rostock supply base; set up the latter from the ground up for the Baltic Sea pipelay campaign.
  • Managed the safe and timely handling of approximately 15,000 pipe joints and client-provided materials; planned 14 vessels across two yards.
  • Client Representative, Jun 2020–Jan 2021: oversaw the Akademik Cherskiy upgrade and five-yearly class survey, reporting safety, progress and milestones to senior management.
Feb 2017 — Dec 2019South Stream Transport B.V.Site Manager · Marshalling YardBulgaria & Turkey

TurkStream pipeline

  • Ran the Turkish marshalling yard for the 32-inch deepwater Black Sea pipeline, leading 10 direct staff and all logistics providers.
  • Managed line-pipe load-out to pipelay vessels, inventory, supply scheduling and demand forecasting.
  • Wrote and maintained operational and logistics procedures, process flows and performance reporting.
Nov 2011 — Feb 2017EMAS AMCSenior Inventory & Fleet Management Systems SpecialistSingapore

Offshore construction fleet

  • Established spares, consumables, project inventories, maintenance systems and support teams across Asia Pacific, Europe and the USA.
  • Controlled ordering, expediting and logistics; reported on fleet maintenance and M&R budgets.
  • Supported tenders and vessel mobilization and demobilization planning.
1997 — Nov 2011Allseas GroupWarehouse Manager & Offshore Network EngineerNetherlands & offshore

Vessel conversions, offshore systems and logistics

  • Warehouse Manager (2005–2011), Offshore Network Engineer (2000–2005), and earlier logistics roles (1997–2000).
  • Conversion and start-up teams for Audacia and Pioneering Spirit, including workshop, store and deck layouts. Audacia conversion involved site management for a workforce of 1,500+.
  • Managed goods, expediting and load-outs for pipelay and deepwater campaigns, supplying a 2,500-strong shipyard workforce.
  • Earlier responsible for business-critical IT infrastructure — approximately 30 servers — on five pipelay and trenching vessels.
1994 — 1997Early career at seaDeck Foreman · Trainee Maritime Officer · BosunNorth Sea & worldwide

A practical maritime foundation

  • Smit Lloyd: deck foreman in offshore supply, towing and anchor handling.
  • Jumbo Shipping: trainee maritime officer in heavy lift.
  • Nederlands Loodswezen: bosun.

INDEPENDENT PRACTICE · JAN 2022–PRESENT

KMS Klasens Marine Services

Alongside project appointments, I run an independent practice for delivery-risk interventions, vessel and contractor sourcing, and market entry support in energy and maritime projects, including Suriname, Indonesia and Africa.

Field experience.
Systems thinking.

Practical control across the full
construction-to-commissioning sequence.

01

Construction & interfaces

Owner’s representation · EPC/EPCM oversight · Contractor coordination · Schedule recovery · P6 review & look-aheads · Change and variation management · Marine logistics and load-outs

02

Completion & commissioning

Mechanical completion · ITRs · Punch lists · MC packs · Walkdowns · Smart Completions · ICSS SAT interfaces · Cause-and-effect testing readiness · Construction-to-operations handover

03

Safety & operating sites

SIMOPS · Permit-to-work · LOTO and energization · ATEX / IECEx · BImSchG · BetrSichV · EU and IMO standards · Incident investigation · Multicultural team leadership

04

Digital tools for the field

Web-based task tracking · QR mustering & POB · Punch lists · MC document control · Advanced Excel · Microsoft 365 · SAP · Infor · IFS · Oracle EAM · Dynamics · TM Master

Explore SystemReady ↗

EDUCATION

Maritime Officer (MAROF)

Bachelor’s degree · 1998
Maritiem Instituut De Ruyter
Vlissingen, Netherlands

CERTIFICATIONS & TRAINING

  • Basic Offshore Safety / BNS — Falck Nutec
  • Helicopter Landing Officer (HLO)
  • IMDG Dangerous Goods by Sea

LANGUAGES

Dutch
Native
English
Fluent
German
B2
Spanish
Basic

SENIOR CONSTRUCTION ROLES & PROJECT ASSIGNMENTS

Let’s get
to work.

Open to international relocation and long-term site assignments across the United States, Middle East and Asia Pacific.