HVAC/R Technician – Naval & Marine Systems Location: Basildon, EssexAbout usJohnson Controls, a global leader in thermal management, mission-critical building systems, energy efficiency, and decarbonization, helps customers use energy more productively, reduce carbon emissions, and operate with the precision and resilience required in rapidly expanding industries such as data centers, healthcare, pharmaceuticals, advanced manufacturing, and higher education.For more than 140 years, Johnson Controls has delivered performance where it really matters. Backed by advanced technology, lifecycle services and an industry-leading field organization, we elevate customer performance, turn goals into real-world results and help move society forward.About the roleWe’re seeking an HVAC/R Technician with around 1–2 years post-apprenticeship experience and a valid F‑Gas certificate to support commissioning and FAT activities for naval HVAC/R systems. This role is predominantly based in our Basildon workshop, with travel to UK naval sites and occasional international assignments. You’ll have the opportunity to upskill in naval equipment and develop your career in a supportive, hands-on team.What we offerCompetitive salary, company car, 25 days holiday + bank holidays, overtimePension, life assurance, employee assistance, discounts, cycle-to-workExtensive product training and clear progression into advanced commissioningZero Harm safety culture; IT tools and equipment providedWhat you’ll doCommissioning of ATUs , Chillers, and HVAC systems in the test bay and when required, on customer sitesElectrical/mechanical hookups, calibration, and functional testingFAT testing and system integration activitiesEnsure F‑Gas compliance (leak checks, recovery, documentation)Help diagnose issues and contribute to root-cause analysis; produce test reportsMaintain test equipment and travel for on-site supportWhat you’ll bringValid F‑Gas Certification (Cat I or II)1–2 years post-apprenticeship HVAC/R experienceStrong electrical/mechanical aptitude; able to read schematics/drawingsWilling to travel UK/internationally; valid driving licenceEligible for UK BPSS and SC clearances (or ability to obtain)DesirableNaval/marine experiencePLC/microcontroller knowledge or HVAC control systems#LI-HN1#LI-Onsite#RMDFL