Lupin

HVAC Design Intern

InternshipIn OfficeKolkata, West Bengal6 months18K/mo13 openingsImmediate / Rolling

About this internship

Lupin has an open HVAC Design Intern position in Kolkata for motivated freshers and final-year students. You will work on live HVAC and building services design projects and finish with something you can genuinely talk about in interviews. About the role As a HVAC Design Intern at Lupin, your core…

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Skills you'll use

HVAC DesignHeat Load CalculationDuct SizingHAP or Carrier SoftwareAutoCADPsychrometricsEquipment SelectionEnergy EfficiencyIS/ASHRAE StandardsDocumentation

What you'll do

Work on sizing cooling loads and ducting for real buildings, where comfort, energy cost and code all pull differently alongside the core team
Apply HVAC Design, Heat Load Calculation, Duct Sizing, HAP or Carrier Software to live, production-facing problems
Document your work clearly for reviewers and stakeholders
Participate in reviews and act on the feedback you receive
Collaborate across engineering, product, design or business as required
Follow the team's quality, testing and documentation standards

Who can apply

Pursuing or recently completed B.E./B.Tech (Mechanical), Diploma in Mechanical Engineering or M.Tech (Thermal)
Graduating batch 2026, 2027 or 2028 — final-year students and recent graduates welcome
60% / 6.0 CGPA and above preferred; strong project work is considered alongside academics
Working knowledge of HVAC Design, Heat Load Calculation, Duct Sizing (or a genuine willingness to learn them)
Exposure to HAP or Carrier Software, AutoCAD, Psychrometrics is an advantage
Clear written and verbal communication in English, and care with detail in your work
No prior work experience required — this is a fresher-friendly internship
Based in Kolkata, West Bengal or willing to work from there for the internship period

Perks & benefits

Networking with senior professionalsInternship CertificateLetter of RecommendationMentorship from a named mentorLive project experienceStructured onboarding and a formal mentor at a large, established employer

Interview & selection process

2 rounds — typical selection flow for this role:

1Application screening & resume shortlisting by the talent team
2Technical interview on fundamentals and your projects

About Lupin

Lupin operates in the pharmaceuticals sector and has an active presence in Kolkata. Interns here are put on real work from the start, because the team's view is that the fastest way to learn a craft is to practise it under people who already do it well — not to watch it from a distance. The work…

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