Outside IR35 Design Engineer Contract Jobs

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Updating results… 26 Contract jobs

Perimeter Design Engineer

Posted 1 day ago by GDH


Role SummaryA highly experienced Perimeter Design Engineer is sought to support enterprise cybersecurity initiatives thr...

  • Rate Not specified
  • Category Outside
  • Work type Remote
  • Location Remote

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Systems Design Engineer 4

Posted 2 days ago by DivIHN Integration Inc.


Job DescriptionSpecialized staff-level Systems Engineering support for front-end and backend software application requir...

  • Rate Not specified
  • Category Outside
  • Work type Remote
  • Location Remote

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Mechanical Design Engineer IV

Posted 2 days ago by NES Fircroft


About the OpportunityWe are seeking an experienced Senior Welding Engineer to join a high-performing engineering team su...

  • Rate Not specified
  • Category Outside
  • Work type Remote
  • Location United States United States

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Senior Mechanical Design Engineer

Posted 2 days ago by Airswift


About the RoleWe are seeking an experienced Senior Mechanical Design Engineer to join a high-performing engineering team...

  • Rate Not specified
  • Category Outside
  • Work type Not specified
  • Location Perth, Australia

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Mechanical Design Engineer IV

Posted 3 days ago by NES Fircroft


Gas Turbine Hot Gas Path (HGP) Design Engineer Remote | Engineering Services & Fleet Support | U.S. Persons Only Are...

  • Rate Not specified
  • Category Outside
  • Work type Remote
  • Location Greenville South Carolina

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Senior Electrical Design Engineer – Contract

Posted 3 days ago by Hilson Moran


Role OverviewYou will provide high-quality design services across a range of projects, ensuring technical excellence, co...

  • Rate £55 per hour
  • Category Outside
  • Work type Hybrid
  • Location London, England, United Kingdom

Data Intelligence Engineer - Design of computational data pipelines, storage & i...

Posted 3 days ago by Randstad Digital


Job SummaryWhat are the top 3-5 skills, experience or education required for this position:1. Python, SQL and scripting2...

  • Rate Not specified
  • Category Outside
  • Work type Remote
  • Location Remote or Illinois

Contract Electronic Design Engineer - Digital

Posted 3 days ago by Redline Group Ltd


Redline has a fantastic 6 month contract opportunity, for a Contract Electronic Design Engineer - Digital based in Milto...

  • Rate Not specified
  • Category Outside
  • Work type Not specified
  • Location Milton Keynes, Buckinghamshire

Electrical Design Engineer

Posted 4 days ago by Airswift


Position OverviewThis position offers the opportunity to support electrical design engineering projects at a nuclear gen...

  • Rate Not specified
  • Category Outside
  • Work type Hybrid
  • Location hartsville, South Carolina, United States

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Mechanical Design Engineer II

Posted 4 days ago by NES Fircroft


About the RoleWe are seeking a motivated and quality-focused Repair Engineer to support our Greenville Service Center. T...

  • Rate Not specified
  • Category Outside
  • Work type Not specified
  • Location Greenville South Carolina

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Senior Mechanical Design Engineer

Posted 4 days ago by g2 Recruitment


Senior Mechanical Design Engineer (Data Centres) G2 is currently seeking a Senior Mechanical Design Engineer to support...

  • Rate Not specified
  • Category Outside
  • Work type Hybrid
  • Location London Area, United Kingdom

PCB Design Engineer

Posted 1 week ago by Langham Recruitment


Key ResponsibilitiesModify and complete routing of an existing PCB design.Work on complex high-speed digital interfaces...

  • Rate Not specified
  • Category Outside
  • Work type Remote
  • Location United States

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UX Design engineer - Bellevue, WA; Chicago, IL; or San Ramon, CA

Posted 1 week ago by Cube Hub, Inc.


Roles and ResponsibilitiesAnalyze complex healthcare operations workflows and translate them into user-friendly UX desig...

  • Rate Not specified
  • Category Outside
  • Work type Remote
  • Location Remote or Chicago, Illinois

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Electrical Design Engineer - Substation/ Primary Plant

Posted 1 week ago by Granite Recruitment


Granite Recruitment is currently hiring an experienced contract Primary Design Engineer for a confidential infrastructur...

  • Rate Not specified
  • Category Outside
  • Work type Hybrid
  • Location Glasgow, Scotland, United Kingdom

Senior Electrical Design Engineer

Posted 1 week ago by g2 Recruitment


About the rolePosition: Senior Electrical Design EngineerProject: AI Hyperscale Data CentreContract: 6 monthsStart Date:...

  • Rate Not specified
  • Category Outside
  • Work type Hybrid
  • Location Glasgow, Scotland, United Kingdom

Contract Electronic Design Engineer - Digital

Posted 1 week ago by Redline Group Ltd


Redline has a fantastic 6 month contract opportunity, for a Contract Electronic Design Engineer - Digital based in Milto...

  • Rate £60 per hour
  • Category Outside
  • Work type Not specified
  • Location Wavendon, Milton Keynes (MK17), MK17

Design Engineer (Manufacturing)

Posted 1 week ago by Prospec Associates Limited


ResponsibilitiesDeveloping and implementing tooling and fixture solutions to optimise manufacturing operationsDesign and...

  • Rate £44 per hour
  • Category Outside
  • Work type Onsite
  • Location Oxford (OX1)

Design Quality Engineer

Posted 1 week ago by CONTECHS


About the companyMy client is an innovative American automotive manufacturer focused on redefining affordable electric m...

  • Rate Not specified
  • Category Outside
  • Work type Not specified
  • Location Troy

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Systems Control Design Engineer

Posted 2 weeks ago by Professional Technical Ltd


The RoleA leading innovator in cooling technology is seeking an experienced Contract Controls Design Engineer for an on-...

  • Rate Not specified
  • Category Outside
  • Work type Onsite
  • Location Maldon (CM9)

Tooling Design Engineer

Posted 2 weeks ago by Prospec Associates Limited


ResponsibilitiesDeveloping and implementing tooling and fixture solutions to optimise manufacturing operationsDesign and...

  • Rate £380 per day
  • Category Outside
  • Work type Onsite
  • Location Oxford (OX1)

About Our Outside IR35 Design Engineer Contract Roles

What does a design engineer contractor do?

As a contract Design Engineer, you are hired to develop technical designs for mechanical, structural, electrical, or systems engineering components, assemblies, and products across a range of industrial and infrastructure sectors. The work involves translating requirements and specifications into detailed engineering designs, producing drawings and models using CAD software, conducting engineering calculations and analysis, reviewing and approving supplier and subcontractor designs, and supporting the manufacturing or construction phase to resolve technical issues as they arise. Design Engineer contractors are brought in on product development programmes, capital projects, and engineering change programmes where additional design capacity or specialist technical expertise is needed on a project basis.

The technical skills expected vary by discipline and sector. Mechanical Design Engineers need proficiency in 3D CAD software, most commonly SolidWorks, CATIA, or Inventor, alongside experience with FEA analysis tools for structural and thermal analysis. Electrical Design Engineers require expertise in electrical schematic design, cable and panel design, and familiarity with relevant standards including BS 7671 and IEC standards. Civil and structural design roles require proficiency in AutoCAD Civil 3D, Revit, or Tekla and knowledge of Eurocodes and British Standards. Across all disciplines, experience producing designs that are fit for manufacture or construction, managing the interface with procurement and production teams, and producing clear and accurate engineering documentation is essential.

What is the market like for design engineer contractors?

Contract Design Engineer work sits within a consistently active specialist market across manufacturing, aerospace, defence, oil and gas, construction, and infrastructure sectors. The aerospace and defence supply chain, the automotive sector, and the growing offshore energy market are among the most significant sources of design contract work in the UK. The transition to electrification across automotive and aerospace is creating new demand for electrical and systems design engineers with experience in high-voltage and power electronics applications. Compensation reflects the technical specialism and sector experience required, with senior Design Engineers on safety-critical or novel technology programmes commanding rates at the top end of the engineering contractor market.

What does Outside IR35 mean?

IR35 is UK tax legislation that determines whether a contractor is genuinely self-employed or working in a manner that resembles employment. When a contract is classified as outside IR35, the engagement is treated as a business-to-business arrangement. The contractor operates through their own limited company, invoices for services, and manages their own tax affairs including corporation tax, self-assessment, and VAT where applicable.

Outside IR35 engagements are assessed against three key factors: the degree of control the client exercises over how the work is delivered, whether the contractor has a genuine right to provide a substitute, and whether there is a mutuality of obligation between the parties. Contracts that demonstrate contractor autonomy, project-based delivery, and the absence of ongoing employment obligations are more likely to sit outside IR35. Since April 2021, responsibility for making this determination sits with the end client for medium and large private sector organisations.

On QualityContracts.co.uk, approximately 28% of roles with a stated IR35 status are classified as outside IR35. The proportion varies by sector and role type, with some disciplines seeing a significantly higher or lower share of outside IR35 opportunities. Each listing on this page displays its IR35 status where provided by the hiring organisation.

What design engineer roles are usually Outside IR35?

Design engineering shows a perfectly even IR35 split, with around 50% of contracts with a stated status sitting on each side. The split reflects the discipline's dual nature: project-based design work for specific products or systems is a natural fit for outside IR35, while ongoing design support within the client's engineering team does not. Automotive, aerospace, and industrial manufacturing companies commission most contract design engineering work. CAD proficiency in tools specific to the sector, whether CATIA, SolidWorks, or Creo, is the baseline requirement.

How much do design engineer contractors usually earn when working Outside IR35?

Contract rates for design engineer roles typically range from £350 to £650 per day, depending on the scope of the role, required expertise, and the delivery expectations of the engagement. Rates shown are for outside IR35 engagements and reflect the gross day rate paid to the contractor's limited company before any personal tax obligations.

How many Outside IR35 design engineer vacancies are there on Quality Contracts?

Over the past twelve months, we have tracked over 300 design engineer contract roles across the site. Of the roles currently listed on our site, around one in four are Outside IR35. Data reviewed up to July 2026.