Which aerospace master's specialisation suits a BTech graduate with 8.61 GPA, no backlogs and four years of work experience?

Your GPA already clears admission at strong programs, so the more useful filter is what you actually did during those 4 years, since that experience should decide the specialisation far more than your grade transcript does.

Aerospace Systems and Avionics: Best for Cross-Disciplinary Experience

• What it integrates: sensors, software, controls and communications rather than a single narrow discipline.
• Example program: Concordia University's MEng offers an explicit Avionics and Control specialisation.
• Best fit: your 4 years touched embedded systems, MATLAB/Simulink or robotics.

Space Systems: Best If You Want Satellites Over Aircraft

• Example program: University of Toronto's UTIAS, with research spanning spacecraft dynamics and autonomous space robotics.
• Best fit: pairs well with a controls or avionics foundation rather than pure aerodynamics.

This Information Is Also Available On

Concordia University's own Aerospace Engineering MEng program page, listing its Avionics and Control specialisation.

My Advice

In my experience, engineers with a strong GPA like yours default to whichever specialisation sounds most prestigious, usually Aerodynamics or Propulsion, without checking whether their actual 4 years of work support it. Match the specialisation to your tools and projects first, and separately decide between a coursework-based MEng, better for industry roles, and a research MASc, better if you eventually want a PhD, since that choice matters as much as the specialisation name itself, and it also affects your funding options along the way.