AIT Technical Lead

Overview

SII Group delivers Digital Services, IT, Engineering, and Consulting to diverse industries, enabling digital transformation through our commitment to Growth, People, and CSR.

With over 16,000 professionals across 21 countries, we're recognised as a "Great Place to Work" for fostering a high-trust culture. Our core values of Trust, Transparency, and Quality drive our work package delivery, ensuring we meet and exceed client expectations as a committed partner.

Since 2016, SII UK has supported top Aerospace & Defence, Aviation, Transportation, and Finance clients, empowering digital transformation with industry-leading engineering expertise.

Let's Tech Together is our promise to encourage innovation and teamwork. We support our engineers with development opportunities and a collaborative, inclusive environment where every voice is valued and empowered.

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The Opportunity

We are seeking an experienced and highly motivated AIT (Assembly, Integration & Test) Technical Lead to oversee and coordinate technical workstreams, interface directly with our aerospace customer, and lead a multi-disciplinary team delivering key programme deliverables.

This is a hands-on technical leadership role requiring a strong background in AIT, solid programme/project management capability, and excellent communication skills. The successful candidate will act as the primary onsite liaison, ensuring the quality and timely delivery of work packages while supporting team development and customer satisfaction.

Responsibilities

• Lead technical planning and discussions with the customer to align on scope, delivery expectations, and priorities
• Act as the main onsite point of contact with the customer, building trust and ensuring clear communication
• Manage day-to-day workload and task allocation for the AIT engineering team
• Support candidate screening, interviews, and selection of AIT and production staff
• Coordinate training and upskilling for new and existing team members
• Monitor and ensure delivery of technical work packages in line with customer expectations and programme deadlines
• Provide insight on manufacturing and production processes, including integration, build sequencing, and scheduling
• Track progress and risks, escalating issues where needed and ensuring smooth team operation

Essential Experience and Skills

• Strong AIT experience within aerospace, space, or high-reliability sectors
• Demonstrated project/programme management skills (planning, scheduling, reporting, risk control)
• Excellent soft skills - clear communicator, approachable leader, effective in high-pressure environments
• Good knowledge of manufacturing/production processes, especially in cleanroom or space hardware environments
• Experience leading or managing technical engineering teams
• Comfortable working onsite in a customer environment, representing the business professionally

Desirable Skills

• Mentoring experience or supporting graduate/apprentice development in engineering teams
• Experience with tools such as DOORS, Jira, Windchill, PDM/PLM systems, or SAP
• Understanding of electrical safety, grounding, and EMC practices in an AIT context
• Familiarity with ECSS standards, test documentation (e.g. test specs, TRRs, DRBs), and hardware release processes

Benefits

• Competitive Basic Salary
• 6% Employers Contribution + 6% as a salary sacrifice
• Private Medical Insurance, Life Cover and Income Protection
• 25 days holiday
• 10 days full sick pay per year
• Flexible working
• Cycle to Work & TechScheme
• Continuous professional development
• Corporate access to the Udemy platform

If you're applying for a role requiring security clearance, please be aware that foreign or dual nationality is not an automatic bar, however certain posts may have restrictions which could affect those who do not have sole British nationality or who have personal connections with certain countries outside the UK.