Senior Localisation Engineer

As a Localisation Engineer at Heidi, you will be responsible for building and maintaining the technical frameworks that enable our products to be seamlessly localised across multiple languages and regions. You will partner with product managers, engineers, designers, and linguists to ensure our software is internationalisation-ready, localisation processes are efficient, and the final experience is high-quality in every market. This role is highly collaborative and technical, you’ll be the bridge between engineering and localisation, automating workflows, troubleshooting issues, and driving improvements in how Heidi delivers global experiences.

Responsibilities

Build and improve Heidi’s localisation platform and workflows, enabling our products to scale globally; Develop AI-assisted translation pipelines that combine automation with human-in-the-loop review; Design systems that reliably deliver localised content across web and mobile applications; Build tools that enable linguists and product teams to review, manage, and improve translations; Build and contribute to developer tooling and open-source libraries that simplify localisation and internationalisation (i18n) workflows; Integrate localisation platforms (e.g. Crowdin, Smartling, or similar) into development and release pipelines; Work with structured content formats (JSON, XML, XLIFF, etc.) and maintain clean integration with source control systems; Partner closely with engineering, product, design, and QA to deliver a high-quality experience across languages and regions; Identify and resolve localisation issues across the stack, from pipelines to UI/UX.

Requirements

3-10 years' of professional software engineering experience; Has experience working with cloud infrastructure (e.g. AWS, GCP); Is proficient in Python or Go and comfortable building tools and automation; Enjoys solving practical problems and debugging technical and linguistic issues; Communicates clearly and collaborates effectively with cross-functional teams; Cares about product quality and delivering great user experiences across languages and regions.

Nice to have

Has experience with localisation platforms such as Crowdin, Smartling, or similar tools; Familiarity with localisation and internationalisation principles; Experience or interest in NLP or language-related systems; Familiarity with infrastructure-as-code tools (e.g. Terraform); Experience building internal tools or developer platforms; Appreciation for cultural and linguistic differences; multilingual experience is a plus.

Benefits

$1,000 annual learning and development budget; $150/month health and wellness allowance; $500 home office budget; 26 weeks paid primary parental leave and 18 weeks paid secondary parental leave; fertility support up to $10,000; four weeks of work from anywhere per year; serious equity.