Location: London Bridge / Southwark Type: Full-time / 100% Office-based (Monday–Friday, 8:30 AM – 5:30 PM) About Us Maris Contracts Limited is a dynamic construction company specializing in a variety of services, including Mechanical, Electrical, Partitioning, Glazing, Flooring, and Decorations. Since its inception in 2018, the company has successfully completed over 1 million square feet of projects across Offices, Retail, Showrooms, Hotels, and Universities within the UK and Europe. Known for delivering high-quality work, Maris Contracts Limited combines expert in-house teams with a customer-driven approach. The company prides itself on transforming client designs into exceptional built environments. The Role We’re looking for a Mechanical Services Design Engineer to join our team. Reporting to the Mechanical Services Director, this role involves full project engagement, working on the design of HVAC systems and above-ground water and waste services. This position serves as a stepping stone to a Pre-Contracts Manager role. You will receive extensive support and training throughout your journey toward Pre-Contract Management. You'll be responsible for producing technical designs, coordinating with wider project teams, and supporting the delivery of practical, regulation-compliant building services solutions. What You’ll Be Doing Producing mechanical and public health layouts, schematics and detailed designs using AutoCAD and Revit Creating equipment schedules (e.g. FCUs, AHUs, HRUs, grilles, attenuators, fire dampers etc) Completing fresh air and load mapping calculations using IES or similar software Sizing ductwork and pipework accurately Preparing technical submissions and reports using MS Office Selecting mechanical equipment and plant Coordinating designs with existing services, building constraints and all related trades Undertaking site surveys and ensuring no adverse impact on existing systems Ensuring all designs meet building regulations, health and safety requirements and best practice Supporting junior engineers and maintaining high quality design standards What We’re Looking For ✅ Minimum 5 years’ experience in mechanical and public health services design ✅ Degree in mechanical or building services engineering ✅ Proficient in AutoCAD; confident using MS Office ✅ Knowledge of thermal dynamics and experience with IES or similar software ✅ Good understanding of commercial design and build fit-out projects ✅ Revit and AutoCAD MEP experience desirable ✅ Self-motivated, organised and able to prioritise in a fast-paced environment Why Join Us? Generous holiday package with 25 days annual leave plus bank holidays, Christmas period off and every last working Friday off each month with pay day ☕ On-site coffee shop – Free breakfast, tea, coffee and fresh fruit all day Salary sacrifice pension scheme – Maris Contracts contributes 15% savings to your pension scheme ️ Life assurance – 3x salary after 12 months’ service Employee Assistance Programme – online GP service, health check every two years, plus mental and physical wellbeing support and second medical opinion