Principal Design Engineer jobs in Doncaster

You will define technical strategy, design scalable data systems, mentor senior engineers, and partner closely with product, engineering, analytics, and business leaders to transform strategic goals into robust, data-driven solutions.

Principal Software Engineer Fully Remote | Permanent | Competitive Salary + Benefits Harrington Starr has partnered with a leading Global Payments Technology company who are seeking to hire a Principal Software Engineer to join their senior engineering leadership team. This is a rare opportunity to combine hands-on development with strategic influence, guiding architecture decisions and shaping...

You will support in reverse engineering and deep understanding of vulnerabilities, including impact analysis and automation.

You must relish the challenge of findings critical vulnerabilities in complex software binaries through automation and manual practices. Creativity is highly valued; being able to find novel vulnerabilities is essential in this role.

You should also expect to work across the full stack and every stage of the product lifecycle, from system design through to build, test, deployment and supporting systems in production, so you should be skilled in practices like TDD, CI/CD, IaC and Observability.

You will be a vital part of this evolution, contributing your expertise to our strategy and helping us redefine what services we offer our clients.

You will ensure buildings are designed to minimise fire risks, through contributing to the development of fire strategy reports, calculations and fire risk assessments.

Position: Industrial Refrigeration Design Engineer Contract: Permanent, Full Time Location: Remote - Based anywhere in the UK (Head office is based in Leicestershire) Salary: circa £75K plus company car or cash allowance & benefits & performance bonus Industry: Industrial Cooling & Refrigeration PRS Engineering has engaged with a key client and a leading Industrial Cooling & Refrigeration...

You will lead technical development, shape product innovation, and work closely with customers and internal teams to create world-class cooling solutions.

Adept Resourcing are recruiting for our manufacturing client, assistingthem in their recruitment for a Design Engineer. The role: To provide accurate, detailed, and timely CAD models and manufacturing drawings/information, that considers the best manufacturing methods to enable products to be manufactured in an efficient and effective manner. Key Responsibilities: To take ownership of design...

Detail Design Engineer – Marine Projects Location: UK Remote Employment Type: Permanent or Contract Are you passionate about delivering precision engineering solutions? Belcan is looking for a Detail Design Engineer with expertise in either Outfit, Structural, Piping, or Electrical design to join our Naval team. Belcan then has the role for you! Key Responsibilities Detailed Engineering...

You will work closely with design and algorithm teams to validate signal-processing functionality and ensure high-quality silicon. Key Responsibilities: - Lead verification of RF/DSP signal-chain blocks using UVM - Develop and maintain UVM testbenches and integrate VIPs - Verify DSP algorithms such as FFT, FIR filters, and channelizers

You will be responsible for delivering ICA design across a range of water treatment schemes, working closely with multidisciplinary teams to ensure designs meet technical, regulatory and client requirements. Key responsibilities - Full ICA design across water treatment projects

This is a remote-working Analog IC Design Engineer position with a leading tech leader based in Lancashire. Our client has plans to expand their UK silicon branch in 2026 and is looking for an Analog IC Design Engineer to join their growing team. Working with experienced, senior Analog and Mixed-Signal IC Designers, your responsibilities will include but not be limited to: - Design and...

Mechanical Design Engineer (x3) – Aircraft Airframe Structures – Outside IR35 – £35–£55/hr – 3 Month Contract Mechanical Design Engineer – Aircraft Structures (x3) Contract | Outside IR35 | Hybrid / Fully Remote (UK-based) Rate: £35–£55 per hour (DOE) Duration: Initial 3 months (rolling) Start: Immediate Location: UK-based (company HQ in Buckinghamshire) Overview We are supporting an...

CDAE Design Engineer – HVDC Substations Outside IR35 | 18-month contract We’re supporting a UK-based client delivering major HVDC substation projects and are looking for an experienced CDAE-certified Design Engineer to join on a long-term contract. This is a high-profile role offering flexibility, autonomy, and involvement in complex power transmission projects. The Role - Act as a...

🚨 ATEX Ex d (Flameproof) Specialist – OUTSIDE IR35 🚨 💷 High Day Rate | 🌍 Remote Working 🛟 Life-Saving Product | Consumer & Commercial (Non-Defence) We’re looking to engage an experienced ATEX Ex d (flameproof) explosion protection specialist to support the development of a consumer and commercial (non-defence) product that is used to help save lives. The work is focused specifically on Ex d...

Come and join us in East Lothian - We care, the way you care Hello, I'm Owen, Recruitment Manager for Randolph Hill Nursing Homes Group. I'm excited to share that we are searching for an outstanding Principal Care Assistant (Nights) to join us at our Muirfield Nursing Home in Gullane, a top performing home in the area for many years. Company Benefits; · Excellent rate of pay - £16.48 - £19.09...

About Intellias Intellias is a European-founded AI, Data and Software Development company with global delivery capability across Europe, India and Latin America. For more than 20 years, we've empowered our customers to embrace innovation at scale and contributed to the success of the world's leading brands. The company is featured in the Inc 5,000 Europe and IAOP Global Outsourcing...

You will be responsible for creating innovative, efficient, and cost-effective designs for renewable energy projects. This role involves collaboration with project managers, other engineers, and stakeholders to ensure project objectives are met while maintaining high standards for sustainability, safety, and regulatory compliance.

Role: Principal Electrical Engineer Location: Devonport(Hybrid role requiring onsite presence 2 days/month) Duration: 2 years Inside IR35: Umbrella About our Client: Our client in Devonport is a leading engineering and maritime organisation specialising in the maintenance, repair, and overhaul of naval vessels. The site operates with a skilled workforce across mechanical, electrical, and...

Senior Full Stack Engineer | Up to £110K | One of the UK's fastest growing AI platforms | UK Remote | React/Node/TypeScript I am currently working with one of the fastest-scaling platforms in the creator economy which is a creator-first, AI-powered product that enables creators around the world to directly monetise their audiences. Every system you build will operate at serious global scale. 🎯...