Refinery Process Optimization Engineer Job Vacancy in Calabar, Nigeria – Oil & Gas – Downstream

Job Description

Position: Refinery Process Optimization Engineer

Company: Nigerian National Petroleum Corporation (NNPC)

Location: Calabar, Nigeria

Experience: 5-7 years

Education: Bachelor’s degree in Chemical Engineering or related field

Employment Type: Full-time

Industry: Oil & Gas – Downstream

Department: Operations & Engineering

Salary: NGN 2,500,000 – NGN 3,500,000 per annum

Vacancies:1

Company Overview

Nigerian National Petroleum Corporation (NNPC) is the flagship oil and gas company of the Federal Republic of Nigeria, responsible for the exploration, production, refining, and marketing of petroleum products across the nation. With a legacy spanning over six decades, NNPC operates a network of refineries, pipelines, and distribution terminals that fuel the country’s economy. The corporation is committed to operational excellence, sustainability, and the development of local talent, making it a premier employer for professionals seeking impactful careers in the downstream sector. As part of its strategic vision, NNPC continuously invests in modernizing its facilities, adopting advanced process technologies, and fostering a culture of innovation. This environment offers unparalleled career growth for engineers who are passionate about optimizing complex processes and contributing to Nigeria’s energy security.

Job Overview

The Refinery Process Optimization Engineer will play a pivotal role in enhancing the efficiency, safety, and profitability of NNPC’s Calabar refinery operations. Reporting to the Head of Process Engineering, the incumbent will lead initiatives that streamline unit operations, reduce energy consumption, and improve product quality. The role demands a deep understanding of refining processes, data analytics, and continuous improvement methodologies such as Six Sigma and Lean. The engineer will collaborate with cross‑functional teams, including operations, maintenance, and quality assurance, to implement best‑in‑class solutions that align with corporate objectives. For more details, visit Nigeria Job Search. This position is a prime example of the many Nigeria Jobs that support the nation’s industrial growth and offers a gateway to long‑term career advancement.

Key Responsibilities

• Analyze real‑time process data to identify bottlenecks and propose optimization strategies.
• Develop and execute pilot projects aimed at improving yield, reducing waste, and lowering operating costs.
• Lead root‑cause investigations for process deviations and implement corrective actions.
• Collaborate with the maintenance team to schedule and oversee equipment upgrades and retrofits.
• Prepare detailed technical reports and present findings to senior management and stakeholders.
• Ensure compliance with environmental, health, and safety regulations throughout all optimization activities.
• Mentor junior engineers and technicians on best practices in process engineering.

Required Skills

• Proficiency in process simulation software (e.g., Aspen HYSYS, PRO/II).
• Strong analytical skills with experience in statistical analysis and data visualization.
• Knowledge of refinery units such as distillation, catalytic cracking, and hydroprocessing.
• Familiarity with Six Sigma, Lean, or other continuous improvement frameworks.
• Excellent communication and stakeholder management abilities.
• Ability to work under pressure in a dynamic, safety‑critical environment.

Education

A minimum of a Bachelor’s degree in Chemical Engineering, Petroleum Engineering, or a closely related discipline is required. Candidates with a Master’s degree or professional certifications (e.g., Six Sigma Black Belt, PMP) will be given preference.

Experience

Applicants must have 5 to 7 years of hands‑on experience in refinery operations, process optimization, or a similar engineering role within the oil and gas downstream sector. Experience with large‑scale industrial projects and a proven track record of delivering measurable efficiency gains are essential.

Salary

The compensation package ranges from NGN 2,500,000 to NGN 3,500,000 per annum, commensurate with experience and qualifications. The package includes performance‑based bonuses, health insurance, and pension contributions, reflecting NNPC’s commitment to competitive Employment in Nigeria.

Benefits

• Comprehensive health and life insurance coverage.
• Retirement savings plan with employer matching.
• Annual performance bonus tied to operational targets.
• Paid annual leave and statutory holidays.
• Relocation assistance for candidates moving to Calabar.

Training

• On‑the‑job training with senior process engineers and subject matter experts.
• Access to NNPC’s internal learning portal for continuous professional development.
• Support for external certifications and advanced degrees.
• Regular workshops on safety, sustainability, and emerging refinery technologies.

Working Environment

The role is based at NNPC’s Calabar refinery, a modern facility equipped with state‑of‑the‑art process control systems and a strong safety culture. Employees work in a collaborative, multicultural environment that values innovation, integrity, and accountability. The position offers a blend of office‑based analytical work and field visits to operational units, providing a dynamic and engaging work experience.

Application Process

Interested candidates should submit their updated CV and a cover letter outlining their relevant experience through the NNPC online career portal. Applications will be screened by the Talent Acquisition team, and shortlisted candidates will be invited for a technical interview followed by a final assessment with senior leadership. NNPC is an equal opportunity employer and encourages applications from all qualified individuals.

Equal Opportunity Statement

NNPC is committed to fostering an inclusive workplace where diversity is celebrated. We provide equal employment opportunities to all applicants regardless of gender, race, religion, disability, or any other protected characteristic. Our hiring practices are designed to ensure fairness and transparency, reinforcing our dedication to Hiring in Nigeria and building a workforce that reflects the rich diversity of the nation.