Design Engineer & Senior Engineer

At RJM International, we are at the forefront of the global energy transition. As a world-leading engineering technology company, we enable energy producers to achieve efficient, reliable, and cost-effective low-carbon power generation. Helping existing energy assets reduce harmful emissions and improve efficiency, ensuring they remain a viable source of reliable power. Driving innovation in biomass and Energy from Waste to enhance reliability and performance in the next generation of power solutions. Our track record of innovation has earned us industry recognition, including the prestigious Queen’s Award for Enterprise: Innovation.

At RJM, you’ll be working with a team of experts on high-impact projects worldwide, tackling some of the most pressing energy challenges of our time. We operate across multiple sectors, from utility-scale power generation to industrial energy users, handling everything from 1,000MWe power units to 100MW gas-fired boilers. Our expertise spans all fuel types and all firing systems, with a particular focus on biomass and Energy from Waste solutions.

We’re looking for a highly skilled, ambitious, and forward-thinking Senior Design Engineer to join our growing team. At RJM International, we don’t just design solutions—we engineer the future of energy. If you have expertise in SolidWorks and Inventor, a keen problem-solving mindset, and a passion for reinventing the future of energy, this is your chance to make a real impact.

As a senior member of our design team, you’ll lead projects that directly improve operational efficiency, emissions control, and sustainability worldwide. You’ll work across engineering, manufacturing, and supply chain teams to develop cutting-edge designs, ensuring they meet cost, quality, and time targets.

• Design & Innovation

• Develop CAD models and detailed engineering drawings using SolidWorks, Inventor, and AutoCAD.
• Maintain design standards and oversee the accuracy of models and drawings across the team.
• Perform design calculations, material selection, and component sizing in line with industry standards.
• Stay ahead of the curve—integrate emerging technologies and best practices into RJM’s design processes.

• Project Leadership & Collaboration

• Work closely with Projects, Process, and CFD teams to create tailored, high-performance solutions.
• Liaise with contractors during manufacturing and provide real-time problem-solving.
• Prepare status reports and manage the impact of design changes.
• Lead a team of designers on large-scale projects, guiding both in-house and external teams.
• Mentor junior engineers, shaping the next generation of top-tier talent.
• Conduct design reviews, troubleshoot issues, and uphold RJM’s quality standards.

• Manufacturing & Installation Support

• Conduct laser scans and use clash detection for seamless design integration.
• Generate parts lists, installation instructions, and engineering documentation.
• Support on-site measurements, diagnostics, and testing.
• Play a key role in design proposals, project planning, and sales presentations.
• Prepare design work schedules for project planning and sales efforts.
• Contribute to continuous improvement by refining processes after project completion.

We know that top talent comes in many forms:

• HNC, HND, or Degree in Mechanical, Structural, or Production Engineering.
• ~8+ years experience in engineering design for small and large projects.
• ~ Expertise in SolidWorks, Inventor, AutoCAD, MS Office, and laser scanning for model generation.
• ~ Deep understanding of structural steel, ducting, welding, fabrication, machining, castings, and piping.
• ~ Ability to manage multiple projects in a fast-paced environment.

Bonus Points for:

• Knowledge of Quality Assurance/Quality Control processes.
• Experience with project management tools & methodologies.
• Additional language skills.
• Full UK driving license.

We invest in top talent and offer:

• Subsidised private healthcare.
• Discretionary bonus scheme.
• Pension & death-in-service benefit.
• Flexible working opportunities.
• Global career opportunities & continuous development.