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Optimal Group

Lightweight composite and metallic structures engineering

Fire Door Carpenter / Maintenance Engineer

Full-TimeUpdated on 10/17/2026
£180 - £200+ Company van option + Congestion charges covered
Senior
London, UK
In Person
General Maintenance & RepairBuilding & Property Maintenance

About the job

Requirements
  • A minimum of five years of carpentry experience is required.
  • Proven fire door experience is required.
  • A good understanding of fire door compliance and regulations is required.
  • Experience with fire door remedial works and installations is required.
  • Ability to work independently and solve problems on site is required.
  • Strong communication skills are required.
  • A full UK driving licence is required.
  • A DBS certificate or check is required.
  • Smartphone literacy is required.
Responsibilities
  • Carry out fire door installations.
  • Carry out fire door remedial works.
  • Adjust and ease doors.
  • Replace intumescent strips and smoke seals.
  • Upgrade door closers and ironmongery.
  • Carry out fire stopping works.
  • Perform general carpentry maintenance and property repairs across residential and commercial properties.
  • Identify non-compliant fire doors and advise on remedial solutions.
  • Complete works in line with fire safety regulations.
  • Liaise professionally with clients and tenants.
  • Maintain accurate job records and photographs via smartphone.
Desired Qualifications
  • FIRAS or BM TRADA experience is highly desirable.
  • Having an own van and tools is highly desirable.
  • Experience working within occupied properties is highly desirable.
  • Basic multi-trade skills are highly desirable.

About the company

Optimal Group provides engineering and manufacturing of advanced composite and metallic structures for aerospace, defence, marine, and automotive projects in Portugal. It offers end-to-end services from design and prototyping to serial production and tooling, using materials science, CAD, FEA, and CFD to develop parts. It operates specialized units such as Optimal Space for the space sector (ECSS standards) and Optimal Protection for defence, with a presence in the UK and partnerships with international firms. Its goal is to be a dependable supplier of high-precision, lightweight components and to grow its international collaborations and market reach.

Company Size

11-50

Company Stage

N/A

Total Funding

N/A

Headquarters

Cascais, Portugal

Founded

2008

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Simplify's Take

What believers are saying

  • 2025-09-17 REPMUS success validates command-and-control software and draws NATO-facing attention.
  • Eurosatory 2026 showcased interceptors, UAS, USV, and ballistic protection, widening addressable defense demand.
  • The 2026 Malbusca launch centre creates a near-term commercialization path for Optimal's space division.

What critics are saying

  • Hunter-02 and spaceport programs depend on defense and government buyers, exposing revenue concentration risk.
  • A failed 2026 Malbusca launch start would damage Optimal's credibility with ANACOM, Navy, and ASC.
  • Competing European composites and drone suppliers can undercut Optimal's niche unless serial production scales fast.

What makes Optimal Group unique

  • 2025-09-12: Optimal Group launched Hunter-02 from a Portuguese Navy vessel, proving maritime launch capability.
  • Optimal Space and Optimal Protection span ECSS space work, defence systems, and composite ballistic protection.
  • Atlantic Spaceport Consortium ties Optimal to Portugal's first licensed spaceport, Malbusca, for 2026 launches.

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Benefits

  • Hybrid Work Options
  • Performance Bonus