Demonstrating remarkable dedication to his chosen field, Sathisilan completed his pupillage at Messrs Shahrizat Rashid & Lim in 2022, under the mentorship of Datuk Seri Rajan Navaratnam. Following this, he was admitted as an advocate and solicitor of the High Court of Malaya in February 2023. During this time, he honed his legal expertise further, expanding his practice to include civil litigation within the same firm.

In early 2024, Sathisilan joined Messrs Naicker & Associate, focusing on litigation with a particular emphasis on general insurance, including motor, public liability, and contractual all-risk claims. This role provided him with valuable exposure, sharpening his advocacy skills through numerous trials and mediation experiences, where he effectively managed client relations and facilitated settlements.

In February 2025, Sathisilan advanced his career by joining Messrs Chiong & Partners as an Advocate & Solicitor. Driven by a deep-rooted passion for the law and an unwavering commitment to delivering exceptional service, Sathisilan consistently strives for excellence across every aspect of his professional journey. His dedication to advancing his expertise ensures his continued growth and success in the legal field.