Localization Manager

Location: London, UK. Most work involves face-to-face collaboration in the office.

Company

Proton develops privacy-focused products including encrypted email, VPN, cloud storage, password management, and calendar services used globally.

What you will do

• Own localization portfolios end-to-end from string freeze through general availability, coordinating Product, Design, Engineering, Marketing, and Support against fixed release dates.
• Administer TMS and CAT workflows and maintain launch assets including scoping models, timelines, locale-readiness checklists, and go/no-go criteria.
• Track translation spend by product and language, reconcile monthly costs, and flag budget drift.
• Recruit, pre-qualify, test, and manage vendors and freelancers; maintain SLAs, NDAs, documentation, quality, and turnaround tracking.
• Lead market adaptation of CRM flows, campaign pages, marketplace listings, pricing, signup, and feature messaging, including template internationalization and content logic where applicable.
• Execute localized experiments with the CRO team, interpret results, and work with Product Analytics to segment funnel data by locale.

Requirements

• End-to-end ownership of localization projects or programmes, including multi-workstream and multi-market launches against fixed dates.
• Daily English use at B2–C2 level and native or professional working proficiency in at least one other language.
• Hands-on administration of TMS and CAT tools, with strong knowledge of localization best practices and internationalization standards.
• Experience managing vendors and freelancers against quality, turnaround, and cost targets.
• Ability to define and monitor operational metrics and change behavior based on data.

Nice to have

• Experience running or contributing to A/B tests on localized surfaces.
• Localization experience in CRM or marketing-automation platforms, including transactional and lifecycle email and template logic.
• Experience supporting consumer and B2B product surfaces in the same portfolio.
• Exposure to MTPE pipelines, quality estimation, or automated LQA gating.
• Experience localizing content with regulatory stakes, such as legal updates, privacy disclosures, and terms.

Culture & Benefits

• Work on privacy-focused products used by millions of people.
• Diverse, collaborative team with offices across Geneva, Zürich, Barcelona, London, and other locations.
• Health coverage, retirement options, generous leave, wellness support, and stock options.
• Hardware and software, learning and development support, office meals, and transport benefits.
• Flexible scheduling with outcomes prioritized over fixed clock-in times.