Senior Mechanical Engineer

Wolviston Management Services Ltd; Tees Valley; On-site; GBP 55,000 - 75,000; Full time

Job summary

Whessoe Engineering is seeking a Senior Mechanical Engineer in Darlington to lead the mechanical design and analysis of storage tanks used across energy and process industries. You will contribute to multi-disciplinary project teams, ensuring timely delivery of high-quality calculations and deliverables.

With experience in ambient or low-temperature tank design and knowledge of relevant design codes, you will mentor engineers and support bids while operating within a globally supported

Qualifications

• Degree in Mechanical Engineering.
• Experience in oil, gas, petrochemical, or energy sectors.
• Experience designing ambient or low-temperature storage tanks; knowledge of tank design codes.

Responsibilities

• Mechanical design of storage tanks.
• Production and verification of engineering calculations and deliverables.
• Supervision of engineers and designers within project teams.
• Technical support for project bids and tender submissions.
• Ensuring compliance with recognised industry design codes, including API and Eurocodes.

Skills

Mechanical design

Engineering supervision

Technical calculations

Tank design knowledge

Education

Bachelor's degree in Mechanical Engineering

Tools

ANSYS

STAAD

CAESAR II

AutoCAD

SmartPlant 3D

PDMS

Inventor

Job description

Senior Mechanical Engineer

Location: Darlington, Co Durham

Contract Type: Permanent / Full Time

Closing Date: Aug 21st, 2026

Ref: 1625003

We are recruiting on behalf of our client Whessoe Engineering, for an experienced Senior Mechanical Engineer to join their engineering delivery team in Darlington.

Our client is supported by Samsung C&T and is part of a globally recognised organisation. With a strong reputation in the market and clear plans for future growth, this is a key opportunity to join the business at an important stage in its development.

The successful candidate will play a central role in the mechanical design and analysis of storage tanks used across energy and process industries, supporting the delivery of engineering work within a multi-disciplinary project environment.

Key Responsibilities

• Mechanical design of storage tanks
• Production and verification of engineering calculations and deliverables
• Supervision of engineers and designers within project teams
• Technical support for project bids and tender submissions
• Ensuring compliance with recognised industry design codes, including API and Eurocodes

Requirements

• Degree in Mechanical Engineering
• Experience within the oil, gas, petrochemical, or energy sectors
• Experience designing ambient or low-temperature storage tanksKnowledge of tank design codes

Desirable Experience

• Chartered Engineer status
• Experience with analysis software such as ANSYS, STAAD, or CAESAR II
• Knowledge of pressure vessel design codes
• Experience using AutoCAD, SmartPlant 3D, PDMS, or Inventor

This role offers the opportunity to contribute to technically complex projects within a collaborative engineering environment, as part of a globally supported organisation with strong growth ambitions.