Senior Systems Engineer Contract Jobs

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Updating results… 59 Contract jobs sorted by:
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Updating results… 59 Contract jobs

Systems Engineer / Site Reliability Engineer

Posted 1 day ago by GDH


Role SummaryThis role involves managing and supporting large-scale Linux infrastructure within a data center environment...

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

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Model Based Systems Engineer - Initial one month onsite in Atlanta then FULLY RE...

Posted 1 day ago by Synersys Technologies


Model Based Systems EngineerLocation: Initial one month onsite in Atlanta then FULLY REMOTEDuration: Contract to PermWor...

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

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Systems Engineer - Architecture

Posted 1 day ago by Matchtech (Fulfiment)


OverviewWe are seeking a highly experienced Principal Systems Engineer with expertise in Model-Based Systems Engineering...

  • Rate £78 per hour
  • Category Not specified
  • Work type Not specified
  • Location Portsmouth (PO1), PO1

Principal Systems Engineer

Posted 1 day ago by Outsource UK


Job DescriptionPrincipal Systems EngineerClient: BAE SystemsJob Type: ContractLocation: Barrow, Portsmouth Broad Oak or...

  • Rate £78 per hour
  • Category Not specified
  • Work type Hybrid
  • Location Cumbria

Senior Kubernetes Platforms System Engineer (Remote Eligible)

Posted 1 day ago by Oak Ridge National Laboratory


OverviewThe National Center for Computational Sciences (NCCS) at Oak Ridge National Lab (ORNL), which hosts several of t...

  • Rate Not specified
  • Category Outside
  • Work type Remote
  • Location Remote or Oak Ridge, Tennessee

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Systems Design Engineer

Posted 1 day ago by ALQUEST TECHNICAL SERVICES LTD


Job Title: IT Automation Project Execution Specialist (Pharma/GxP Manufacturing)Start Date: asapLocation: Milton KeynesD...

  • Rate Not specified
  • Category Not specified
  • Work type Onsite
  • Location Bletchley, Buckinghamshire

System Engineer

Posted 1 day ago by Huxley


OverviewWe are looking for a senior System Engineer with extensive experience in large-scale enterprise environments to...

  • Rate £70 per hour
  • Category Outside
  • Work type Onsite
  • Location United Kingdom

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System Engineer Packaging

Posted 1 day ago by Huxley


System Engineer PackagingWe are looking for a senior System Engineer Packaging to manage and maintain the technical appl...

  • Rate Not specified
  • Category Outside
  • Work type Onsite
  • Location United Kingdom

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Senior Aircraft Propulsion Systems Engineers - Shanghai China

Posted 1 day ago by Strongfield Consultants Ltd


Senior Aircraft Propulsion Systems Engineers - Shanghai China.Our Aerospace client offers long term steady work prospect...

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

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Senior System Engineer

Posted 3 days ago by Platform Recruitment


Senior Systems Engineer | Cambridge | FTC 1-2 years | £65-75/h | 2 days onsiteWe’re looking for a Senior Software System...

  • Rate £75 per hour
  • Category Fixed-Term
  • Work type Hybrid
  • Location Cambridge, England, United Kingdom

Principal System Engineer

Posted 3 days ago by JAM


DescriptionPrincipal Systems Engineer – Systems Architecture £78.33 per hour (Inside IR35) Mostly remote - 1-2 days per...

  • Rate £78 per hour
  • Category Inside
  • Work type Hybrid
  • Location United Kingdom

Senior System Engineer

Posted 3 days ago by OB Collective


OB Collective develops independent verification technology for organisations operating in government, regulated and high...

  • Rate £95 per hour
  • Category Outside
  • Work type Remote
  • Location Greater London, England, United Kingdom

Senior Systems Engineer

Posted 4 days ago by Saab UK


IntroductionAll candidates should make sure to read the following job description and information carefully before apply...

  • Rate Not specified
  • Category Not specified
  • Work type Not specified
  • Location Fareham, England, United Kingdom

Principal Systems Engineer

Posted 4 days ago by Expleo Group


Expleo is seeking a Senior Systems Engineer to support the growth of Expleo's Marine business unit.The successful candid...

  • Rate Not specified
  • Category Not specified
  • Work type Hybrid
  • Location Farnborough, England, United Kingdom

Principal Systems Engineer

Posted 4 days ago by Expleo Group


Expleo is seeking a Principal Systems Engineer to support the growth of Expleo's Marine business unit.The successful can...

  • Rate Not specified
  • Category Not specified
  • Work type Hybrid
  • Location Barnstaple, England, United Kingdom

W2 - Senior UI Engineer (AI Systems &FIGMA & Ember.JS & React or Next.JS)

Posted 4 days ago by Prohires


ABOUT THE ROLEWe are looking for a Senior UI Engineer who is resourceful, dedicated, and passionate about establishing r...

  • Rate Not specified
  • Category Outside
  • Work type Hybrid
  • Location Remote or Hybrid in Pittsburgh, Pennsylvania

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Systems Engineer

Posted 5 days ago by Softek International Inc.


5+ years of relevant experienceExperience in planning of systems and development deployment and meeting software complia...

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

Senior Embedded Systems Engineer

Posted 5 days ago by Catalyst


DescriptionMy client is a County Durham based, market-leading designer and manufacturer of electronics; specialising in...

  • Rate £70,000 per year
  • Category Not specified
  • Work type Not specified
  • Location Peterlee, England, United Kingdom

Systems/Cloud Engineer III for our direct client in Malvern, PA (Remote)

Posted 7 days ago by Ab Ovo Inc


This is long term contract role with our direct client, It is remote role.The Senior CCaaS Engineer is responsible for a...

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

Senior Control System Engineer

Posted 7 days ago by Airswift


About the RoleWe are seeking an experienced Senior Control System Engineer to provide technical leadership and specialis...

  • Rate Not specified
  • Category Outside
  • Work type Not specified
  • Location Doha, Qatar

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About Our Senior Systems Engineer Contract Roles

What does a systems engineer contractor do?

As a contract Systems Engineer, you are hired to design, integrate, verify, and validate complex engineered systems, applying a holistic engineering approach that considers how all elements of a system, including hardware, software, human operators, and operational environment, work together to deliver the required capability. Systems Engineering is a discipline with particular depth in aerospace, defence, rail, nuclear, space, and complex infrastructure programmes, where the integration challenges of multi-component systems with long development lifecycles and critical safety requirements demand a structured and rigorous engineering approach. Contractors are engaged to define system requirements, develop system architectures, manage interface definitions between subsystems, conduct system verification and validation activities, support safety and reliability analysis, and manage the technical baseline of complex systems programmes.

The core competencies for Systems Engineer contracting include are grounded in the INCOSE Systems Engineering Handbook or equivalent framework, alongside practical experience applying systems engineering methodology on comparable programmes. Experience developing and managing requirements using model-based systems engineering tools such as DOORS, CAMEO, or Rhapsody is expected for roles on formal defence and aerospace programmes. Familiarity with the V-Model development lifecycle and the specific verification and validation activities associated with each phase is expected by most clients. For safety-critical systems roles, knowledge of functional safety standards including IEC 61508 or DEF STAN 00-055/061, and the ability to contribute to safety cases and HAZID/HAZOP analyses, is additionally expected. Chartered Engineer status with IMechE, IET, or RAeS is well regarded and frequently required on major defence and aerospace systems programmes.

What makes a contract position 'senior'?

Senior contract roles carry expectations beyond technical delivery. Clients engaging at senior level are paying for independent judgement, the ability to shape how work is approached, and the experience to identify risks and dependencies that less experienced contractors may miss. Senior contractors are typically expected to lead workstreams, mentor junior team members, and engage directly with senior stakeholders.

Day rates for senior contract roles reflect this additional scope, with premiums typically sitting between 15 and 30 per cent above mid-level equivalents. The premium is justified by reduced management overhead, faster ramp-up, and the strategic perspective that senior contractors bring from previous engagements across multiple organisations and programmes.

Contractors positioning for senior engagements should be prepared to demonstrate a track record of leading delivery rather than contributing to it. The ability to articulate how previous engagements were shaped by their involvement, supported by strong references, carries more weight at senior level than certifications or years of experience alone.

What responsibilities does a senior systems engineer contractor have?

Senior systems engineer contracts carry ownership of the systems engineering approach for a major programme or subsystem. Clients expect you to define the verification and validation strategy, manage requirements decomposition across multiple levels, lead system integration activities, and represent systems engineering at programme governance. The role demands both deep technical understanding of the system domain and the ability to manage complexity across multiple engineering disciplines and suppliers.

What is the market like for systems engineer contractors?

Systems Engineer contracting is a specialist and well-established and active market concentrated in aerospace, defence, rail, nuclear, and space sectors, where the complexity and safety criticality of the systems being developed demand rigorous systems engineering practice. The UK defence and aerospace sectors, with their significant capital programme pipeline, are the most consistent buyers of Systems Engineer contract resource. The growing complexity of rail and nuclear programmes, and the emerging space sector in the UK, are additional sources of contract demand. The supply of formally qualified and experienced Systems Engineers who can operate within the demanding governance frameworks of major defence and safety-critical programmes is limited relative to demand, maintaining solid rates across the discipline. Security clearance is frequently required for defence-facing roles.

How much do senior systems engineer contractors usually earn?

Contract rates for senior systems engineer roles typically sit towards the upper end of the £400 to £750 per day range, reflecting the greater accountability, stakeholder exposure, and delivery expectations that come with senior-level engagements.

How many senior systems engineer vacancies are there on Quality Contracts?

Over the past twelve months, we have tracked over 200 systems engineer contract roles across the site. Roughly one in eight carry a senior, lead, or principal designation. Data reviewed up to September 2026.