Full-Time

Principal Process Engineer

SI Group

SI Group

1,001-5,000 employees

Global performance additives and APIs supplier

No salary listed

Freeport, TX, USA

In Person

Bachelor's

Category
Process Engineering
Required Skills
Process Engineering

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Requirements
  • A Bachelor of Science degree in Chemical Engineering is required.
  • At least 15 years of experience in chemical process and/or production engineering is required.
  • Working knowledge of distributed control systems and safety instrumented systems is required.
  • Working knowledge of standards such as the American Petroleum Institute, American Society of Mechanical Engineers, and National Fire Protection Association is required.
Responsibilities
  • Provide technical assistance with process hazard analyses, layer of protection analyses, corrective and preventive actions, and safety instrumented function requirements.
  • Initiate and execute management of change processes for process improvements and capital projects.
  • Develop heat and material balances, pressure safety valve calculation bases, capital project process design bases, and process control functional specification narratives for new processes.
  • Collaborate with production to address gaps in current process safety information.
  • Provide technical support for incident investigations to ensure root causes are correctly identified.
  • Identify, evaluate, and execute medium-term initiatives to improve yield, energy usage, capacity, and quality.
  • Partner with production, maintenance, process technology, and other cross-functional teams to develop sustainable and practical solutions.
  • Leverage global process knowledge to share best practices and drive improvements.
  • Lead and support plant trials for process improvements, new products, and new process technologies; document trial data and results.
  • Develop process design bases for capital projects and lead feasibility studies for potential new initiatives.
  • Ensure technically sound detailed process engineering design, including external engineering work, is delivered to the project team.
  • Participate in commissioning and startup teams as needed.
  • Coordinate with process technology to implement new products and process technologies successfully.
  • Develop strategic step-change improvements for plant assets and strategic options for asset and product-line footprints.
  • Provide technical assistance to plants for high-impact issues and troubleshooting.
  • Provide mentoring to production engineers.

SI Group supplies specialty chemical products and solutions, focusing on performance additives, process solutions, active pharmaceutical ingredients (APIs), and chemical intermediates. Its offerings enhance quality, performance, and durability across industries such as pharmaceuticals, automotive, and consumer goods. How it works: the company develops tailored chemical formulations and process solutions for customers, leveraging advanced materials and safety/compliance practices. It operates globally with facilities in nine countries and serves customers in over 80 countries, collaborating closely to meet specific application needs. Differences from competitors: emphasis on customer-centric, safety-compliant solutions delivered through global production networks and a broad portfolio across multiple market segments. Goal: to help customers improve product performance while maintaining safety and environmental responsibility through reliable, compliant chemical solutions.

Company Size

1,001-5,000

Company Stage

N/A

Total Funding

N/A

Headquarters

The Woodlands, Texas

Founded

1999

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Simplify Jobs

Simplify's Take

What believers are saying

  • December 2025 recapitalization injected $150 million for working capital and growth.
  • The China Biphenol joint venture targets rising electronics, automotive, and medical demand in Asia.
  • Chinaplas 2025 showcased polymer additive innovation, reinforcing customer relevance in core markets.

What critics are saying

  • The Singapore alkylphenol plant closes in 2025, shrinking Asia manufacturing presence.
  • Orangeburg ended ibuprofen production in 2024 and cut 74 jobs, signaling portfolio stress.
  • A 2025 recapitalization followed $1.7 billion debt reduction, proving leverage had become existential.

What makes SI Group unique

  • SI Group owns proprietary Biphenol technology and expands it with Shengnova in China.
  • Its 18-facility, 80-country footprint supports dual-sourcing across Europe, Americas, and Asia.
  • Management promoted Robert Kaiser in 2025 to tighten market-led growth execution.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

Disability Insurance

Health Savings Account/Flexible Spending Account

Unlimited Paid Time Off

Paid Holidays

401(k) Retirement Plan

401(k) Company Match

Growth & Insights and Company News

Headcount

6 month growth

-5%

1 year growth

-5%

2 year growth

-5%
Fuels and Lubes
Jul 27th, 2026
SI Group promotes Robert Kaiser to strategic marketing SVP.

SI Group promotes Robert Kaiser to strategic marketing SVP. SI Group has promoted Robert Kaiser to senior vice president, strategic marketing, a role in which he will also join the company's executive leadership team. SI Group, a global developer and manufacturer of performance additives, process solutions and chemical intermediates, said Kaiser will lead market-focused growth initiatives while strengthening the alignment between customer needs and the company's long-term business strategy. Kaiser joined SI Group in 2014 and has since held leadership positions of increasing responsibility across strategic marketing and business development. The company said he has played a key role in shaping its portfolio and market strategy, and in driving cross-functional alignment on critical growth initiatives. Before joining SI Group, Kaiser held commercial leadership roles at AkzoNobel and Arizona Chemical, now part of Kraton Corporation. David Bradley, president and chief executive officer of SI Group, said Kaiser has consistently demonstrated exceptional strategic leadership and a deep understanding of the company's markets. "His ability to turn information into actionable insight has been instrumental in strengthening our commercial organisation and advancing our strategic priorities," Bradley said. "We look forward to the unique global perspective and market-centric lens he will bring to our Executive Leadership Team." Kaiser said he was honoured to join the executive leadership team at a time when customers are navigating an increasingly complex business environment. "I'm grateful for the opportunity to step into this role at a time when SI Group has the global footprint and strong foundation needed to create value for our customers and the markets we serve," Kaiser said. "I look forward to working with colleagues across SI Group to deepen customer relationships and continue advancing our commercial strategy." Kaiser holds a master of business administration (MBA) from Ruhr University Bochum in Germany. SI Group's chemistries are used in industrial and consumer goods across the plastics, rubber and adhesives, fuels, lubricants, coatings and oilfield industries. Headquartered in The Woodlands, Texas, U.S.A., the company operates 18 manufacturing facilities across three continents and serves customers in more than 80 countries, supported by approximately 1,500 employees worldwide.

PR Newswire
Jun 25th, 2026
SI Group and Shengxiao Group form joint venture to expand Biphenol capacity in China

SI Group and Shengxiao Group have formed a joint venture, Shengnova Advanced Materials, to expand Biphenol production capacity in China. The partnership combines Shengxiao's existing manufacturing facilities in Sichuan with SI Group's proprietary technology and global expertise. Biphenol is a key monomer used in liquid crystal polymers, polyphenylenesulfone and other high-performance materials for electronics, automotive and medical applications. The venture aims to enhance regional supply to meet rising demand across Asia Pacific whilst SI Group continues production at its Newport, Tennessee facility. Shengxiao Group, founded in 1987, is a leading supplier of LCP monomers and specialty chemicals. SI Group operates 18 manufacturing facilities globally and serves customers in over 80 countries.

PR Newswire
Dec 24th, 2025
SI Group cuts debt by $1.7B in recapitalisation, secures $150M investment for growth

SI Group, a global manufacturer of performance additives and chemical intermediates, has completed a comprehensive recapitalisation that reduces its net debt by approximately $1.7 billion, representing over 80% of its outstanding indebtedness. The transaction, supported by lenders and equity partners, includes amendments to the company's revolving credit facility to enhance financial flexibility. A new institutional ownership group has invested $150 million in junior capital, demonstrating confidence in SI Group's prospects. The Woodlands, Texas-based company will use the investment to fund working capital needs, operational initiatives and growth acceleration. President and CEO David Bradley said the recapitalisation strengthens the firm's financial foundation, enabling continued investment in growth and operational capabilities whilst supporting customers globally.

SteelOrbis
Aug 29th, 2025
SIJ Group secures €25M financing boost

SIJ Group, a Slovenia-based steelmaker, has secured €25 million in financing from banks including NLB d.d., UniCredit Banka Slovenija d.d., OTP banka d.d., and SID Bank to bolster financial stability amid challenges like increased Asian imports, US tariffs, and high energy costs. In H1, SIJ Group faced a net loss of €23.8 million, with sales revenues down 11% to €518 million. The company is in talks for a long-term refinancing solution to ensure sustainable operations.

Plastech Biz
Apr 2nd, 2025
SI Group to showcase polymer additive innovations at Chinaplas 2025

SI Group, a leading global developer and manufacturer of performance additives, process solutions, pharmaceuticals, and chemical intermediates, will showcase its latest innovations in polymer additive technologies at Chinaplas 2025.