Production Assembly Technician

First Call Contract Services, Ltd.; Hart; On-site; GBP 15,911 - 22,661; Full time

Benefits offered by this job

Hands-on training

Progression opportunities

Giga-scale potential

Job summary

First Call Contract Services, Ltd. is hiring for a Production Assembly Technician to join an early manufacturing team in Hook. You will hand‑assemble battery stacks and assist in electrolyte preparation on a pilot line, working to tight tolerances and COSHH safety rules.

We offer on-site training and a clear path as we scale production. The role requires physical stamina and adherence to 5S and safety standards in a bustling startup environment.

Qualifications

• Regulated manufacturing environment preferred but not required.
• Ability to stand for long periods and lift up to 15 kg.
• Right to work in the United Kingdom.

Responsibilities

• Assemble battery stacks following SOPs with sub‑mm precision.
• Assist in preparing and filling electrolyte solutions per COSHH rules.
• Maintain 5S standard and clean, safe workspace at all times.
• Operate basic pilot line equipment and oversee quality checks.
• Report assembly issues to Engineering to improve manufacturability.

Skills

Manual dexterity

SOP adherence

CosHH awareness

Hand tools

Attention to detail

Tools

Torque wrenches

Calipers

Job description

Job Overview

We have an exciting opportunity to work for a nationally recognised energy business, considered to be the leader in its field. Pay rates from £14 per hour. The role of Warehouse Operative is based in Hook.

We are seeking a detail-oriented Production Assembly Technician to join our founding manufacturing team in Hook. As an early hire on our production floor, you will play a direct role in refining the manufacturing blueprint for the next generation of energy storage. You will be responsible for the hands‑on assembly of our proprietary ZincGel battery cells and packs – a unique opportunity to work at the forefront of renewable energy storage technology, transitioning from a lab environment to a scalable pilot production line.

Shifts

• 08:00-17:00
• Monday to Friday

Pay

• From £14.00 per hour
• Paid weekly

Key Responsibilities

• Mechanical Assembly: Follow Standard Operating Procedures (SOPs) to assemble battery stacks, including the precise alignment of electrodes, frames, separators and bipolar plates. Since our batteries rely on consistent gaps for electrolyte flow, accuracy within sub‑millimetre tolerances is essential.
• Chemical Handling: Assist in the preparation and filling of electrolyte solutions, ensuring strict adherence to COSHH regulations.
• Spill Prevention: Execute “Clean-Line” protocols to prevent cross‑contamination between the “dry” assembly area and the “wet” electrolyte making/filling station.
• Quality Control: Conduct visual inspections and basic pressure/leak testing on assembled units to ensure they meet our rigorous performance standards.
• Machine Operation: Operate basic pilot line machinery, including mixer dyers, heaters, chillers, pallet trucks or automated dispensing systems.
• Feedback Loop: Proactively report assembly difficulties to the CTO/Engineering team to contribute to ongoing Design for Manufacturability (DfM) improvements.
• Safety & Housekeeping: Maintain a clean and organised workspace to 5S standards and ensure all PPE is used correctly at all times.

Required Skills and Qualifications

• Experience: 0–10 years. No prior battery experience required. Experience in a regulated manufacturing environment (electronics, automotive, plastics, or medical devices) is advantageous but not essential.
• Technical Aptitude: Strong manual dexterity and the ability to use hand tools – including torque wrenches and calipers – with high precision.
• Attention to Detail: Ability to follow complex, multi‑step instructions consistently and without shortcuts. Understanding that a single fingerprint or foreign body on an electrode can cause a hot spot or cell failure.
• Startup Mindset: Comfortable with ambiguity. You should be someone who asks, “Why are we doing it this way?” if you spot a potential efficiency.
• Environmental Awareness: Understanding that a single fingerprint or foreign body on an electrode can cause a hot spot or failure in a battery.
• Physical Stamina: Ability to stand for extended periods and safely lift components up to 15 kg.
• Safety Mindset: A proactive, non‑negotiable approach to safety – particularly when working with chemical substances and in a live production environment.
• Right to Work: Must have the right to work in the United Kingdom.

What We Offer

• Be a part of a high‑growth startup developing sustainable long‑duration energy storage.
• Hands‑on training in advanced green‑tech manufacturing.
• Opportunities for rapid progression as we scale towards giga.

This is a fantastic opportunity for the right candidates to begin a career with a company that offers genuine long‑term opportunities and career development.