Graduate Systems Engineer

Callen-Lenz

Graduate Systems Engineer working on avionics for unmanned air systems in a hybrid role. Join a growing team at Callen-Lenz focusing on UAS development and integration.

Posted 7/16/2026full-timeSalisbury • 🇬🇧 United KingdomEntry Level💰 £35,000 - £40,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in the design and development of avionics systems for unmanned air systems, with a strong focus on integration, systems engineering, and safety compliance. Proficient in using engineering tools and capable of supporting flight test development activities.

Highest-signal resume keywords

Avionics Systems DesignSystems EngineeringIntegration of UAS SystemsProficiency in PythonReport Writing

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Avionics Systems DesignSystems EngineeringIntegration TasksFlight Control SystemsCabling DesignFailure AssessmentTest Facility MaintenanceUAS ExperienceSolidworksMATLAB

Soft Skills

CommunicationTeam CollaborationCommitment to Safety

Tools & Technologies

DOORSSolidworksPythonMATLABArdupilot

Certifications & Qualifications

UK Driving LicenceSecurity Clearance

Industry Keywords

Unmanned Air SystemsFlight TestAerospace EngineeringHealth and Safety Compliance

Tech Stack

Tools & technologies

Python

About the role

Key responsibilities & impact

Design and development of avionics systems for unmanned air systems, including flight control, navigation, communication, electrical, payload, aircraft management and command & control (C2) systems.
Aid in integration of systems, including other air vehicle systems such as power plant and fuel systems
Support wider aircraft systems design, such as cabling and loom/wire harness design.
Assessment of system and subsystem failures and impacts to other systems
Support and enable flight test development activities
Maintain test facilities
In addition to support to existing team, the Graduate Systems Engineer will be expected to grow their experience and progress
Perform other related duties as required
Demonstrate in daily activities a commitment to health and safety in the workplace by always ensuring tasks are performed in the safest possible manner
Report all hazards and incidents that the individual is party to, or observes, in the correct manner.
When required or directed, participate in any health and safety training.

Requirements

What you’ll need

An upper second-class (2:1) or above BSc or Master Honours degree in an Engineering or Science subject.
Proficiency in spoken and written English
Competent in practical integration tasks either using software or hardware-based rigs
Report writing and information dissemination/presentation.
Design or systems engineering experience in UAS and associated systems (Desirable)
Experience with integration and/or use of Ardupilot based flight control systems (Desirable)
Experience in flying, or flight test, of UAS or RPAS (Desirable)
Familiarity with common engineering tools, for example DOORS, Solidworks, Python, MATLAB or equivalents (Desirable)
Demonstrable knowledge of systems engineering, preferably in aerospace (Desirable)
Must be a British Citizen or have an existing right to work in the UK.
Ability to commit to occasional national and international travel.
A full valid UK driving licence.
Ability to hold Security Clearance – 5 years residence in the UK.

Benefits

Comp & perks

25 days annual leave per year (plus bank holidays)
Buy/Sell holiday policy up to 5 days either way
Pension Scheme via Royal London Company contributed
Share Incentive Plan
Green Car Scheme
Life assurance scheme (6x basic salary)
Income protection policy (75% of basic salary)
Private Health Insurance via Bupa
Private Dental insurance via Bupa
Enhanced Maternity and paternity
1 Professional membership reimbursed per year
1 paid volunteering day per year
Access to an independent financial advisor year round
Training & development opportunities