Avionics System Test Engineer

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ublié le 04/06/2026
CDI / SII United Kingdom
MISSION
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We are seeking a highly motivated Systems Test Engineer to contribute to complex aerospace
i

ntegration and validation programmes. This position involves working within a multidisciplinary
e

ngineering environment to support ground and flight\-based verification activities across critical
a

ircraft systems. The role offers exposure to cutting\-edge testing methodologies, data\-driven
e

ngineering, and fast\-paced operational delivery.

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ROFIL
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KEY RESPONSIBILITIES:

• * xecute system\-level validation activities across mechanical and fluid\-based aircraft

ubsystems within a live engineering environment.

• * upport the end\-to\-end lifecycle of airborne test campaigns, including preparation,

onfiguration verification, and active participation during test operations.

• * enerate comprehensive and well\-structured technical documentation, capturing test results,

bservations, and engineering insights.

• * nalyse large datasets obtained from testing activities, applying statistical techniques and

ngineering judgement to interpret system behaviours.

• * nvestigate anomalies identified during testing, contributing to structured troubleshooting

rocesses and supporting root cause investigations.

• * ork closely with cross\-functional teams, including design, operations, and validation

pecialists, to communicate technical findings and propose solutions.

• * perate efficiently under tight deadlines, adapting to shifting priorities within a dynamic

roject environment.

• * ontinuously adopt new tools, digital capabilities, and engineering approaches to enhance testing efficiency and output quality.

• * trong foundational knowledge of aerospace systems and their operational principles.


• * bility to quickly understand and adopt new tools, workflows, and internally developed systems.


• * esilience and adaptability when working in high\-pressure, delivery\-focused environments.


• * dvanced data manipulation and analysis capability, particularly using Microsoft Excel.


• * lear and precise technical communication skills, with a focus on structured reporting.


• * nalytical mindset with exposure to data processing techniques such as signal analysis and mathematical modelling.


• * rogramming capability (e.g. Python or similar) for automation, data handling, or analysis is advantageous.

• * emonstrated experience within an aerospace or high\-integrity engineering environment.


• * nvolvement in system verification, validation, or performance testing activities.


• * ackground in processing, interpreting, and reporting on engineering data.


• * ractical experience in fault diagnosis, troubleshooting, or investigative engineering tasks.


• * xposure to integrated system testing or operational test environments is beneficial but not essential.

With five strategic offices in Belfast, Chester, Farnborough, London and Oxford, we work in partnership with our customers UK\-wide to deliver high\-impact engineering solutions.

SII UK is a trusted Aerospace and Defence engineering partner, supporting the delivery of complex, mission\-critical programmes while helping to shape the future of innovation across next\-generation systems and technologies.

Our teams contribute daily to creating a fulfilling, stimulating and career development focused work environment.

True to our human\-centred values, we are committed to making SII UK a Great Place To Work®, having been certified 5 years running.

Joining SII UK means being part of our collective goals, guided by our mission “Let’s Tech Together,” and helping to build a digital future that is sustainable, at the heart of an environment that values learning \& collaboration.

GROUPE SII
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Who are we?

With five strategic offices in Belfast, Chester, Farnborough, London and Oxford, we work in partnership with our customers UK\-wide to deliver high\-impact engineering solutions.

SII UK is a trusted Aerospace and Defence engineering partner, supporting the delivery of complex, mission\-critical programmes while helping to shape the future of innovation across next\-generation systems and technologies.

Our teams contribute daily to creating a fulfilling, stimulating and career development focused work environment.

True to our human\-centred values, we are committed to making SII UK a Great Place To Work®, having been certified 5 years running.

Joining SII UK means being part of our collective goals, guided by our mission “Let’s Tech Together,

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