Lead Full Stack Systems Developer in Hemel Hempstead)

Penguin Recruitment; Hemel Hempstead; On-site; GBP 75,000 - 85,000; Full time

Job summary

A leading environmental technology firm located in Hemel Hempstead is looking for a Senior Full Stack Systems Developer to lead development on cloud-based products. The ideal candidate will possess strong technical and leadership skills, managing the full software lifecycle and ensuring high-performance and secure systems. This role offers a competitive salary between £75,000 and £85,000, along with numerous benefits including private healthcare and a generous holiday allowance.

Benefits

Private healthcare

Strong pension scheme

Generous holiday allowance

Electric vehicle salary sacrifice programme

Qualifications

• Experience in managing full software lifecycles across complex enterprise systems.
• Proficient in Java enterprise middleware.
• Capable of designing, developing, testing, and deploying software solutions.

Responsibilities

• Take ownership of end-to-end development for cloud-based products.
• Guide the full software lifecycle from architecture to deployment.
• Mentor developers and influence technical direction.

Skills

Managing full software lifecycles across complex enterprise systems

Java enterprise middleware

Designing, developing, testing, and deploying software solutions

Strong understanding of security

Databases

Networking

HCI

Technologies such as Docker

REST APIs

MQTT

Deep learning frameworks

Prior exposure to environmental monitoring systems

Mentoring or leading technical teams

Job description

Senior Full Stack Systems Developer

Reference: BY128941

Hemel Hempstead

£75,000 - £85,000

Join a pioneering organisation at the forefront of environmental technology. For over ten years, this company has been transforming how the UK monitors and understands environmental change, building integrated, data-driven ecosystems that deliver real-time insights. As they continue to expand, they're looking for a Lead Full Stack Systems Developer to lead a talented technical team and play a key role in shaping the next generation of intelligent digital platforms.

What's on offer for the right Lead Full Stack Systems Developer:

• Salary: £75,000-£85,000 plus performance‑related bonus, with clear scope for growth
• Benefits: Private healthcare, strong pension scheme, generous holiday allowance, and an electric vehicle salary sacrifice programme
• Culture: A forward‑thinking, collaborative environment that values innovation, impact, and professional development

The Lead Full Stack Systems Developer role:

As Senior Full Stack Systems Developer, you'll take ownership of end‑to‑end development for advanced cloud‑based products. You'll guide the full software lifecycle—from architecture and design to deployment—ensuring systems are scalable, secure, and high‑performing. The position involves mentoring developers, influencing technical direction, and partnering with cross‑functional teams to deliver cutting‑edge enterprise solutions.

About the Lead Full Stack Systems Developer:

We're seeking someone who brings both technical depth and leadership skills, with experience in:

• Managing full software lifecycles across complex enterprise systems
• Java enterprise middleware (essential)
• Designing, developing, testing, and deploying software solutions
• Strong understanding of security, databases, networking, and HCI
• Technologies such as Docker, REST APIs, MQTT, and deep learning frameworks
• Prior exposure to environmental monitoring systems (advantageous)
• Proven ability to mentor or lead technical teams

This is a rare opportunity to apply your full stack expertise to technology that makes a measurable difference to the planet.

We have many more vacancies available on our website. Please refer to www.penguinrecruitment.co.uk. This is a permanent role. Penguin Recruitment is operating as a Recruitment Agency in respect to this position.