Senior Intern

Are you a team player with an interest in business law? Do you have the courage, spark and drive to succeed? Apply to become a senior intern for a six‑month internship starting in March 2027. Castrén & Snellman is an international law firm. Our long‑term work makes us a pioneer in high‑grade legal services across corporate reorganizations, dispute resolution and other business law areas. Our recipe for distinction is straightforward: collaboration, proficiency and a tradition of exceeding expectations. Ignite a spark in your career at Cassu. We are seeking senior interns for a full‑time (37.5 h/w) internship from 1.3.–27.8.2027. At Castrén & Snellman you will join a community united by passion for doing. We put ourselves out there for clients and the team. The sometimes busy and demanding day‑to‑day is made easier by helping one another. We work with modern tools and you will have the opportunity to use artificial intelligence in your work. As a senior intern You will work in support of our lawyer team in diverse business‑law tasks. You will develop your skills by getting to know the work of a newly qualified lawyer. As an intern you will perform research related to case law and detailed legal questions, write articles, translate legal texts and contact authorities. Your days may also include e.g. due diligence reviews, drafting contract templates, updating document templates and preparing trainings in collaboration with experienced lawyers. You will participate in office or team development projects. You will have a tutor appointed to you together with your supervisor. What do we expect from you? You are a law student in the final stages of your studies with some industry work experience. You are passionate about business law, careful, cooperative and solution‑oriented. You have excellent Finnish and English language skills and a friendly approach to clients. Most of all we value what you bring to our work community as your own self. What do we offer you? All internships are paid. Total compensation includes base salary and lunch benefit, reflecting the salary recommendations of the Juristiliitto. We also offer a sports and culture benefit, gym access, massage during working hours and diverse trainings, events and hobby clubs. Welcome to Castru! Apply now! Read more about our internship program and apply for the March cohort on our website by 25.8.2026. Attach your CV, cover letter and transcript. For more information about the internship, see the Students FAQ section. You can also follow current interns Senn and Meli in our Instagram takeovers during the application period. For more information about the internship program and the recruiting process, contact HR Business Partner Riitta Vuorenvirta at +358 50 4902636 or riitta.vuorenvirta(a)castren.fi. How the application progresses: you will receive a link to a video question within a few days of submitting your application. We review applications and video answers and invite some candidates for a personal interview in week 36. We actively work to build a more diverse working life and promote equality, and we do not tolerate discrimination or harassment in any form. You can be yourself with us. We hope applicants from diverse backgrounds. Learn more about us: our Jobs site, our practices and values, and our client stories. Castrén & Snellman has repeatedly been ranked as the most desired employer in law by Universum since 2008.