Senior Mechanical Engineer

Company: L3Harris Technologies
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Job Description:

Overview

In this role you will contribute to the mechanical design of release systems within L3Harris Brighton, leading engineering work packages and shaping robust mechanical architectures. You will work cross-functionally to ensure designs meet requirements, lifecycle considerations, and standards, while engaging with customers and suppliers. The position offers the chance to drive technical outcomes on mission-critical systems used in fighter, rotary-wing, and unmanned platforms. You will operate within a collaborative, governance-driven environment that values rigorous design and risk management.

Pay / Benefits

  • Hybrid working where possible, three days onsite per week
  • Half day finish on a Friday
  • 25 days holiday per year plus bank holidays
  • Pension scheme up to 8% employer contribution
  • Life Assurance 4x salary
  • Employee Family Assistance Program

Responsibilities

  • Provide technical design input to mechanical architectures, interfaces and key design features
  • Lead assigned work packages and engineering programmes with accountability for scope, delivery, risk and outcomes
  • Contribute to design trade studies and selection of robust solutions
  • Coordinate engineering activities across disciplines without direct line management
  • Guide design intent and alignment with requirements, constraints and lifecycle
  • Review and assure mechanical design outputs (drawings, analyses, specs)
  • Assess feasibility against cost, schedule, manufacturability and lifecycle
  • Address complex technical issues from project teams, manufacturing or suppliers
  • Interface with customers and suppliers to clarify requirements and approaches
  • Provide input to cost and schedule estimates for programme activities
  • Ensure compliance with standards (BS8888, ISO 1101 and internal governance)

Key requirements

  • BEng/BSc in Mechanical or Aerospace Engineering with >=6 years, or MEng/MSc with >=4 years, or HNC/HND with >=10 years
  • Strong delivery experience in engineering programmes/tasks
  • Experience in requirements engineering across lifecycle
  • Understanding of risk management for tasks within programmes
  • Ability to work independently and manage competing priorities under governance
  • Hands-on experience with 3D CAD tools and PDM with configuration control
  • Familiarity with MRP and manufacturing engineering
  • Experience in supporting technical reviews, work planning and schedules
  • independent working
  • prioritisation and time management
  • cross-functional collaboration
  • 3D CAD tools
  • PDM
  • MRP

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Posted: September 14th, 2026