Mechanical Junior Engineer

About the job

The function assists in developing and implementing reliable, efficient, and scalable mechanical solutions – learning directly from experienced professionals while contributing to Europe’s most advanced data center developments.

• Assist in developing mechanical design concepts and reviewing consultant deliverables, including HVAC, ventilation, and fire detection and suppression systems.
• Support the preparation and evaluation of mechanical design documentation such as drawings, specifications, and calculations.
• Contribute to the development of technical standards, design templates, and best practices across projects, including developing control‑system sequences of operation for mechanical systems.
• Assist in monitoring design development activities and documenting progress across construction management tasks.
• Support the development of analytical models for capacity planning, conceptual design validation, and HVAC control‑strategy evaluation.
• Collaborate with consultants, contractors, and vendors to ensure mechanical designs meet performance, safety, and sustainability targets.

• Support the Senior Mechanical Engineer in coordinating mechanical works throughout the design and construction phases, identifying issues, and providing technical guidance.
• Participate in design coordination meetings and assist in reviewing submittals, shop drawings, and equipment selections.
• Help track progress against schedules, budgets, and technical specifications.
• Support commissioning activities, including testing, validation, and documentation of mechanical systems.

• Ensure designs and installations comply with Portuguese and European mechanical standards, building codes, and environmental regulations.
• Contribute to quality assurance processes and document control.
• Promote safety, energy efficiency, and reliability in all aspects of mechanical design and operation.

• Work closely with electrical, civil, and controls engineers to ensure integrated system design and coordination.
• Work with the Sales team to support fit‑out planning and address technical queries.
• Support operational handovers and provide ongoing technical support to the Operations team.
• Assist in identifying opportunities for continuous improvement in design, cost, and performance.

• Bachelor’s degree or higher in Mechanical Engineering, with a focus on Energy and HVAC systems.
• 1–3 years of experience in design, construction, or maintenance of mechanical systems (internships included).
• Familiarity with HVAC, chilled water systems, and fire protection design principles.
• Exposure to data centers, industrial facilities, or mission‑critical environments.
• Knowledge of energy efficiency standards, sustainability design, or LEED principles.
• Understanding of AutoCAD, Revit, or other mechanical design software.
• Strong proficiency in MS Excel, including VBA and macro‑based data analysis.
• Exposure to building energy modelling, system simulation, pipe‑network analysis, or CFD tools is a plus.
• Knowledge of programming, electronics, and IT systems is a plus.
• Eagerness to learn, grow, and work in a highly technical, fast‑paced environment, taking ownership of tasks and exploring solutions proactively.
• Fluency in Portuguese and English (written and spoken).

• Impact:
  Lead world class operations at Europe’s largest and most sustainable data center.
• Collaboration:
  Work closely with cross‑functional teams and contribute to business development.
• Flexibility:
  Empowered to lead with autonomy and creativity in a fast‑paced, client‑centric environment.
• Growth:
  Join a company committed to innovation, professional development, and service excellence.

At Start Campus, we provide mission‑critical data center services that power businesses globally. We're customer‑centric, innovative, and always looking to push boundaries. If you’re passionate about building relationships, driving customer success, and thriving in a tech‑driven world, we want to hear from you! If you think you have what it takes for this position and are looking for a new professional challenge, send your application.