Sika is a specialty chemicals company with a leading position in the development and production of systems and products for bonding, sealing, damping, reinforcing, and protecting in the building sector and motor vehicle industry. Sika has subsidiaries in more than 100 countries around the world and manufactures in over 300 factories. Sika employs more than 33,000 people and generated sales of CHF 10.4 billion in fiscal year 2022. Sika is active in Japan with more than 1,000 people and has a long-standing history.

Sikaは、接着、シーリング、制振、補強、および保護に関するシステムと製品の開発・製造において、建築業界および産業分野で世界をリードする専門化学メーカーです。現在、Sikaは世界103カ国に子会社を持ち、400以上の工場で製造を行い、革新的な技術をお客様に提供しています。これにより、建設業界や輸送業界の環境負荷低減に向けた変革を支える重要な役割を果たしています。2024年には、約33,000人の従業員が11.76億スイスフラン（CHF）の年間売上を達成しました。

Position Summary

We are seeking a highly skilled and innovative R&D Chemist/R&D Project Manager to develop and optimize Sealants for the construction industry. We encourage applications from diverse scientists who are passionate about material science and eager to make an impact in sustainable waterproofing solutions. The candidate will be responsible for formulating, testing, and improving sealants, ensuring compliance with industry standards, and supporting the scale-up of new formulations for production. This position open for both natives and foreigners who masters Japanese language. While English skills should be ideally at least on intermediate level.

Main function/responsibility/competencies

• Research and Development: Lead the design, planning, and execution of R&D projects focused on construction sealants (1C/2C polyurethane, hybrid systems, STP/MS). This includes exploring novel formulations, materials, and manufacturing processes to improve product performance, durability, and cost-effectiveness.
• Testing & Analysis: Conduct laboratory testing (mechanical, chemical, thermal, and water resistance) to evaluate the performance of formulations.
• Raw Material Evaluation: Research and assess raw materials, additives, and polymer technologies to optimize product properties and cost efficiency.
• Process Optimization: Improve manufacturing processes for consistency, performance, and production efficiency.
• Regulatory Compliance: Ensure compliance with international and regional standards.
• Technical Support: Collaborate with production, quality control, and sales teams to resolve technical issues and support product application in the field. Provide technical expertise and support to internal teams, customers, and external partners. Offer guidance on product selection, application techniques, troubleshooting, and quality assurance.
• Innovation & Sustainability: Explore sustainable and eco-friendly material alternatives to align with environmental regulations. Stay abreast of industry trends, emerging technologies, and competitive developments. Proactively identify opportunities for innovation and differentiation and drive the development of new products or enhancements to maintain our competitive edge.
• Documentation and Reporting: Maintain accurate records of R&D activities, experimental data, and project milestones. Prepare comprehensive reports, technical documents, and presentations to communicate findings, recommendations, and progress updates to stakeholders at all levels.

主な業務:

1. プロジェクト管理と複数のR&Dプロジェクトリード
   ・小～中規模のプロジェクト（例: 1C/2C polyurethane, hybrid systems, STP/MS）を独立して主導・管理し、納期・予算内での完了を確実にする。
   ・プロジェクトの進捗を追跡し、シニアチームに定期的に報告する。
2. イノベーションと新製品開発
   ・新製品の配合やプロセス改善のための実験を主導し、実行する。
   ・イノベーションプロセスにアイディアを提供し、実験データを製品改良に活用できるようサポートする。
3. 特許と知的財産
   ・プロジェクト中に発見された潜在的なイノベーションを特定し、サイエンティスト/エキスパートケミスト/エキスパートエンジニアに報告する。
   ・正確なデータ記録と実験文書を通じて、特許申請の準備をサポートする。
4. データ分析および報告
   ・実験データを分析し、プロジェクトの進捗に役立つ結論を導き出す。
   ・シニアチームメンバーのために詳細な報告書を作成し、技術的なプレゼンテーションや社内文書の作成に貢献する。
5. 規制遵守
   ・安全手順に従い、清潔でコンプライアンスに準拠した作業環境を維持する。
   ・確立されたガイドラインを遵守することを通して、規制要件について学習し、理解を深める。

Required:

This position open for both natives and foreigners who masters Japanese language. While English skills should be ideally at least on intermediate level.

• Education: Bachelor’s/Master’s degree in Chemistry, Polymer Science, Materials Science, Chemical Engineering, or a related field.
• Experience: 3-5 years in R&D for waterproofing coatings, adhesives, sealants preferred.
• Technical Skills: Expertise in polymer chemistry, emulsions, and rheology.
• Hands-on experience with formulating liquid-applied waterproofing membranes (PU, acrylic, or hybrid).
• Knowledge of testing methods (tensile strength, elongation, adhesion, permeability, and UV resistance).
• Understanding of manufacturing processes (dispersion, curing, mixing, and application methods).
• Experience with analytical instruments (FTIR, DSC, TGA, Rheometer, etc.).
• Soft Skills: Strong problem-solving skills, attention to detail, ability to work independently and in a team, excellent communication skills.

Preferred (but not required – we encourage all to apply!):

• Familiarity with solvent-based, water-based, and reactive resin systems.
• Experience with construction chemicals, protective coatings, or industrial waterproofing solutions.
• Knowledge of green chemistry and sustainable material alternatives.
• Prior involvement in patent development and innovation.

要件

テクニカルスキル:
基本的な実験技術（滴定、クロマトグラフィー、分光法）、データ分析、機器の校正

ソフトスキル:
細部への注意力、コミュニケーションスキル、チームワーク、タイムマネンジメント、問題解決力

その他：
・化学、化学工学、または関連分野の学士号以上
・ラボでの実務経験があれば尚可

Reporting line:

• Innovation & Sustainability / Head of Sealant Technologies

This role will closely work with:

• Teams of Operations, Target market, Technical service and Sales.
• Other teams of Innovation & Sustainability (from Sika Japan or from other sister companies).
• Customers and Applicators.

チームメンバー：　様々な部門と連携して業務を進めていただきます

1. イノベーション & サステナビリティ部門の他のチーム
2. 調達とオペレーションズ
3. テクニカルサービス、セールスとマーケティング
4. 顧客、建設専門家および請負業者