Employer: Freshfields Bruckhaus Deringer Title and Practice Area: Senior Associate, International Arbitration

Describe your biggest win or accomplishment in practice.  Helping Repsol secure a $5 billion settlement following Argentina's expropriation of its stake in Argentine oil company YPF. This was one of the highest-profile direct expropriations in recent times. Being Argentine myself, I was fascinated with the case. An all-round great experience.

What was the most valuable lesson you learned in your first year practicing law?  It may sound trite, but attention to detail is key. At some point in their careers, all lawyers become obsessed with typos. Nothing makes more senior lawyers lose faith in the quality of your work than typos. You must read, re-read and then proof-read everything before hitting send.