Senior Reservoir Engineer

Tetra Tech, Inc.; Old Woking; On-site; GBP 70,000 - 100,000; Full time

Job summary

Tetra Tech, Inc. in the United Kingdom is seeking a Senior Reservoir Engineer to lead multi-disciplinary studies, delivering robust engineering solutions, managing project scope, schedule and quality, and ensuring client requirements are met.

Based in Woking with hybrid/remote options, you will coordinate across teams, support CPR preparation and reserves evaluations, and contribute to winning proposals through clear technical input and proactive client engagement.

Qualifications

• Degree in Petroleum/Reservoir/Chemical Engineering and proven project delivery experience.
• Experienced with reservoir simulation and modelling tools.
• Strong analytical and communication skills.

Responsibilities

• Lead reservoir engineering studies and coordinate across disciplines.
• Translate reservoir data into practical engineering solutions to inform decisions.
• Contribute to Competent Persons Reports (CPRs) and client technical assessments.
• Support proposal development and client engagement.

Skills

Reservoir engineering analysis

Production forecasting

Reserves evaluation

Project management

Data analytics

Scripting

Communication skills

Team collaboration

Education

Degree in Petroleum/Reservoir/Chemical Engineering

Tools

3D dynamic simulator software

Job description

Join a dynamic technical team delivering high-impact reservoir engineering solutions across multi-discipline projects in our Technical Advisory business. We're seeking an experienced Senior Reservoir Engineer who combines strong technical judgement with practical project management to help shape client outcomes and drive proposal delivery. This role can be based hybrid in Woking or remote.

Purpose & Scope of the Role

Contribute reservoir engineering expertise to the delivery of multi disciplinary projects, providing clear technical input across studies and operations. Lead projects, taking ownership of technical delivery, schedule, quality and ensuring client requirements are understood and met.

Your Impact in this position

You will translate reservoir data into pragmatic engineering solutions that inform decisions, de-risk projects and optimise field performance. As a Senior Reservoir Engineer you will coordinate across disciplines, support and guide colleagues, represent the team to clients and shape proposals that win work. Your work will directly influence project outcomes, client satisfaction and business growth. You will also contribute to the preparation and review of Competent Persons Reports (CPRs), supporting reserves and resources evaluations and providing independent technical assessments for clients.

Core Capabilities

• Technical expertise: Provide robust reservoir engineering analysis (material balance, simulation, production forecasting, reserves evaluation) and produce clear, defensible technical deliverables for projects.
• Project Management: Plan and manage medium - scale project delivery, control scope and schedule, and ensure outputs meet quality standards.
• Digital & modelling proficiency: Apply reservoir simulation tools, data analytics and scripting to streamline workflows, support model development and improve decision support.
• Client engagement: Build client relationships, interpret client needs, present technical findings convincingly and contribute to commercial proposals.
• People & collaboration: Mentor and share expertise, delegate appropriately, communicate proactively and foster a cooperative team environment.
• Degree in Petroleum/Reservoir/Chemical Engineering or equivalent. Excellent reservoir engineering knowledge with proven project delivery experience. Proficient with 3D dynamic simulator software. Strong analytical and communication skills.

Working environment

Most of our team is based in Woking and our preference would someone willing to attend the office on a weekly basis. We have flexible working opportunities to ensure a balance of family and working life.

Tetra Tech is a leading provider of consulting and engineering services working across the full project lifecycle worldwide. We have a wide range of expertise across our teams, providing a global support network with a personalised approach to client relationships to better understand where we can add value. We provide a collaborative environment that supports individual performance, innovation, and creativity. We support public and private sector clients on local, national, and international projects to deliver sustainable and resilient solutions. Our operations in the UK, Ireland, and the Netherlands include more than 6,000 employees who are Leading with Science to solve our clients' most complex problems.

In alignment with the Equality Act 2010, we will make reasonable adjustments to support candidates and employees requiring additional arrangements. This could include adaptations to work schedules, training approaches, or the physical workspace. Please inform us if you need any accommodations during the recruitment process or in your day-to-day role.