Job Posting Title Site Integration Leader

Trinseo; Rheinmünster; Remote; EUR 90,000 - 130,000; Full time

Job summary

Trinseo in Rheinmünster is hiring a Site Integration Leader to oversee all tenant, supplier and utility relationships within the Chem Park, protecting financial interests and driving value through effective negotiations.

You will work closely with Site Leadership, Finance, Legal and Procurement to standardize contract governance, monitor risks, and steer commercial operations, while applying your German and English fluency and 5+ years in contract management to enable long‑term business

Qualifications

• 5+ years of contract or claims management experience.
• Master's degree in engineering with strong commercial background or related field.
• Fluent in German and English.

Responsibilities

• Strategic Relationship & Stakeholder Management: interface between Trinseo, Chem Park tenants, service providers, utility suppliers, and external stakeholders.
• Commercial Leadership, Negotiation & Value Creation: lead complex negotiations and identify value creation opportunities for site services, utilities, and tenant relationships.
• Contract Governance, Risk Management & Dispute Resolution: establish governance framework, oversee contracts, claims, and settlements.
• Financial Stewardship & Commercial Operations: ensure cost transparency, coordinate PO setup, and monitor market developments.

Skills

Negotiation

Risk management

Bilingual EN/DE

Strategic thinking

Education

MS in Industrial Engineering

Business Administration / Law

Job description

Overview

Trinseo is a different kind of global materials company – at the intersection of people, technology, and customers. We are a world leader in the production of plastics and latex binders. Our culture is built on passion and innovation.A career at Trinseo presents a unique opportunity to work in a highly collaborative environment. Helping customers solve their most complex material challenges is the reason we come to work each day. We are seeking innovative thinkers – ready to tackle any challenge and passionate about delivering value.As a global materials solutions provider focused on delivering innovative and sustainable solutions to our customers, we need people to feel respected and included so they can be more creative, innovative, and successful. We strive to create workplaces that reflect all communities and customers we serve and where everyone feels empowered to bring their full, authentic selves to work. That's why we're fully committed to inclusion across race, gender, age, religion, identity, and experience to drive us forward every day.

The Site Integration Leader is responsible for the strategic management and commercial optimization of all tenant, supplier, and utility relationships within the Rheinmünster Chemical Park. The role safeguards Trinseo's financial and contractual interests, drives value creation through effective stakeholder engagement and negotiations, and serves as a key advisor to site and corporate leadership on commercial, legal, and operational matters impacting the Chem Park ecosystem. In addition, the role provides leadership for the site's contract governance framework, driving standardization, risk management, and the continuous evolution of contractual and commercial practices to support Trinseo's long-term business objectives.

Responsibilities

Strategic Relationship & Stakeholder Management

• Serve as the primary commercial and strategic interface between Trinseo, Chem Park tenants, service providers, utility suppliers, and external stakeholders.
• Develop and execute relationship strategies that strengthen collaboration, support long‑term site sustainability, and align stakeholder interests with Trinseo's business objectives.
• Collaborate closely with Site Leadership, Production & Utilities, Finance, Procurement, Legal, and Corporate Leadership to drive integrated decision‑making and successful execution of Chem Park objectives

Commercial Leadership, Negotiation & Value Creation

• Lead complex commercial negotiations and contractual discussions to achieve favorable financial, operational, and strategic outcomes for Trinseo.
• Identify and realize value creation opportunities across site services, utilities, infrastructure, and tenant relationships.
• Provide executive‑level analyses, recommendations, and insights regarding site economics, service agreements, investments, risks, and business opportunities.
• Drive strategic initiatives and business transformation efforts that enhance operational effectiveness, improve service delivery, and strengthen Trinseo's competitive position within the Chem Park.

Contract Governance, Risk Management & Dispute Resolution

• Establish and maintain a robust contract governance framework, ensuring standardization, compliance, consistency, and continuous improvement across the site's contractual landscape.
• Partner with Legal Counsel and external advisors to oversee contract administration, amendments, claims management, arbitration proceedings, and settlement negotiations.
• Manage escalated commercial, service, and utility disputes while safeguarding Trinseo's financial, contractual, and reputational interests.
• Assess and mitigate commercial, contractual, regulatory, and operational risks affecting the Chem Park business environment.

Financial Stewardship & Commercial Operations

• Ensure transparency and accountability of service and utility cost structures through robust cost allocation, tracking, and performance‑monitoring processes.
• Coordinate the annual commercial and administrative framework for site services, including purchase order setup and compliance with corporate governance requirements.
• Monitor market developments, regulatory changes, and industry trends impacting tenant agreements, infrastructure, and utility services, proactively identifying mitigation strategies and opportunities for value enhancement.

Qualifications

Qualifications:

• 5+ Extensive professional experience in contract or claim management

• MS, Industrial Engineering, Engineering with strong commercial background, Business administration / business law

Skills/Knowledge/Abilty

• Strong senior‑level negotiation skills and decision‑making capability
• High conflict, risk, and escalation management competence
• Strategic mindset combined with operational depth
• Confident presence when interacting with management, authorities, and external partners
• Excellent communication and interpersonal skills.
• Ability to work collaboratively in a team environment.
• Business‑fluent German and English

Equity and InclusionWith our expanding global presence, cross‑cultural insight and competence are essential for our ongoing success. We believe that a diverse workforce contributes different perspectives, experiences, and creative ideas that enable us to continue to improve every day. Race, gender, ethnicity, country of origin, age, personal style, sexual orientation, physical ability, religion, work and life experiences and many more factors contribute to this diversity. We welcome all applicants, regardless of their backgrounds, and are committed to a fair and inclusive hiring process.