Mr Gunjan Sharma > Volterra Fietta > London, England > Lawyer Profile

Volterra Fietta

Work Department

Public International Law


Counsel at Volterra Fietta


Gunjan Sharma is a highly qualified and experienced New York lawyer who specialises in international dispute resolution and public international law.  He represents clients at the highest levels of practice.  He is Counsel at Volterra Fietta and joined the firm in October 2018.  Previously, Gunjan was a senior associate in the international arbitration and litigation group of Skadden Arps’s New York office. 

 Gunjan’s experience includes representing States before the International Court of Justice; representing private entities and States in investor-State arbitrations; and acting as counsel before a wide range of US courts.  This includes the US Court of Appeals of the Second Circuit, several federal district courts and the courts of the State of New York.  A sovereign State also appointed him as an expert witness on a matter of diplomatic and State immunity before the courts of a European country.  

 For example, Gunjan was a senior associate in the firm’s representation of the Democratic Republic of Congo, Kenya and the United Arab Emirates before the International Court of Justice.  Gunjan is also a key member of the teams that:  (i) defend the Arab Republic of Egypt in an ICSID arbitration brought by Al Jazeera Media Network; (ii) advise Norgold SE in relation to a wide range of public international law matters; and (iii) successfully defended the Republic of Lithuania in an ICSID arbitration brought by Mr Olegs Roščins regarding measures taken against bank accounts as the result of a money-laundering investigation.  In the latter case, following an investigation of the underlying facts by counsel, the firm filed a motion for preliminary dismissal of the proceeding for manifest lack of legal merit under the ICSID Arbitration Rules 41(5) and 41(6), causing the Claimant to abandon its case. 

Gunjan’s extensive disputes resolution experience is strengthened by a significant level of non contentious and transactional experience.  Gunjan routinely advises States and private parties on front-page-news issues of international law.  He has advised States as legal counsel during treaty negotiations and on boundary delimitation matters, in both the Caribbean Basin and Africa.  He represented the Government of Barbados in its treaty negotiations with the Government of Trinidad and Tobago in relation to a transboundary unitisation agreement.  Gunjan also represented the interests of a major company before the US Trade Representative during the TPP and USMCA negotiations.  He has also advised clients on numerous issues in over 300 large commercial deals, including in the oil and gas, alternative energy, construction and insurance industries. 

Gunjan publishes academic writings and speaks on a wide variety of international legal topics.  His work has been cited by a number of influential publications and entities, including the United States Congressional Research Service.

Gunjan obtained a Juris Doctor from the New York University School of Law in 2009.  In 2006, he obtained a Bachelor of Science in Foreign Service (International Law, Politics and Ethics), with a Certificate in Asian Studies, from the Walsh School of Foreign Service at Georgetown University, where he was distinguished as a Krogh Honors Medallion Scholar.

Gunjan also has a strong commitment to equality and justice in the criminal justice system.  He was a Litigation Fellow at the Innocence Project, a charitable organisation dedicated to exonerating wrongfully convicted individuals by using DNA evidence.  As a law student, he worked in Alabama to oppose systemic inequality in the US criminal justice system with the Equal Justice Initiative, an influential charity based in Montgomery, Alabama.

In 2020, the Legal 500 listed Gunjan under the “Rising Star” category for public international law.  Peers and clients referred to Gunjan as a “future star in the public international law area for sure” who is “very professional”, “quick and very easy in communication” and has “fantastic drafting skills”. 





New York City Bar Association; London Court of International Arbitration; Association of International Petroleum Negotiators



Member of the New York Bar, First Appellate Division (2010)


New York University School of Law, Juris Doctor (2009)

Georgetown University Walsh School of Foreign Service:  Bachelor of Science in Foreign Service (International Law, Institutions and Ethics) (2006); Certificate in Asian Studies (2006); Krogh Honors Medallion Scholar (2006)

Lawyer Rankings

London > Dispute resolution > International arbitration

Housing lawyers who are ‘absolutely at the highest level‘, the investment treaty arbitration practice at specialist public international law (PIL) firm, Volterra Fietta represents both states and foreign investors. The firm is also increasingly involved in commercial arbitrations. Robert Volterra is an investment treaty arbitration expert; Graham Coop focuses on energy, natural resources and infrastructure-related matters; and Peter Flint is ‘detail oriented‘. Counsel Gunjan Sharma is a PIL and international dispute resolution specialist, while associate Angela Ha is ‘very thorough‘.

London > Dispute resolution > Public international law

(Rising stars)

Gunjan SharmaVolterra Fietta

Without doubt the leading firm in public international law‘, Volterra Fietta‘s large PIL practice acts for private entities, states and international organisations across the full range of PIL work, including International Court of Justice (ICJ) cases, maritime boundary claims, and investment treaty and International Centre for Settlement of Investment disputes (ICSID) arbitrations. The firm also fields specialists in state immunity cases, the laws of war and international humanitarian law, along with international human rights, state responsibility, and WTO and international trade law. The ‘best public international lawyer around‘, Robert Volterra assists with a wide range of PIL issues; Graham Coop is particularly focused on the energy, natural resources and infrastructure sectors; and the experience of recently elevated partner Peter Flint includes acting for governments and commercial parties in international disputes. Recently promoted counsel Gunjan Sharma, and associates Angela Ha and Jehad Mustafa, all have extensive PIL experience.