Lead 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.

• 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

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.

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.

If you are interested in this or other positions within Software Development then please do not hesitate to contact Beth Young on or call . We have many more vacancies available on our website. Please refer to . This is a permanent role. Penguin Recruitment is operating as a Recruitment Agency in respect to this position.