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Senior Machine Learning Engineer at Lokalise. Location Information: Remote role EMEA. . Who are we. . At Lokalise, we make it easy and profitable for businesses to expand into new markets. Founded in 2017, our AI-powered translation and localization platform automates workflows, integrates with over 60 tools, and helps product teams launch multilingual products 10x faster and at 80% lower cost. Trusted by thousands of businesses across over 100 countries, Lokalise is empowering more than 25 million people worldwide to use diverse services in their native languages. Backed by a customer-loved support team, our platform seamlessly fits into your design and development processes, helping you scale effortlessly.. Location. . While our company operates exclusively on a remote basis, . you must reside and have the legal right to work. in one of the following countries: the United Kingdom, Latvia, Spain, Germany, Denmark, Poland, Portugal, or Ireland.. . . . About. . We’re looking for a . Senior. . Machine Learning Engineer. to join our growing AI team. You’ll be the technical owner of the systems that power LLM-based localization features — designing reliable, scalable, and observable services from the ground up. You’ll also partner across disciplines to support ML operations and data infrastructure — enabling experimentation and continuous improvement.. . This is a role for someone who thrives in complex systems, has a drive for engineering excellence, and enjoys supporting others to succeed.. . . . You will. . . Build and own . LLM-powered back end services. using FastAPI, Pydantic, etc. — ensuring they are scalable, observable, and easy to extend. . Design infrastructure that enables . rapid experimentation. with LLMs, including A/B testing, feature flagging, and usage analytics. . Integrate and maintain . LLM observability tooling. (e.g., LiteLLM, Langfuse) to monitor quality, cost, and performance of model calls. . Collaborate with Data and ML Scientists to productionize workflows, share feedback, and continuously improve experimentation speed. . Ensure systems are reliable and deployable with strong . CI/CD practices. , including instrumentation and alerting. . Contribute to team culture through pairing, mentoring, and sharing learnings to help others grow. . Stay connected to the product by understanding our users' needs, localization workflows, and broader industry trends. . . . . You Must Have. . . 4+ years of experience building and operating backend systems in production. . Strong proficiency with . Python. , . FastAPI. , and . Pydantic. . Solid understanding of . microservice architecture. , . scalable distributed systems. , and . observability. , with familiarity using tools like . OpenTelemetry. , . Grafana. , or . Datadog. to monitor both general system health and LLM-specific metrics like latency, token usage, and model performance. . Hands-on experience with . prompt engineering. in production. . Familiarity with . CI/CD. , containerisation, and cloud deployment. . Strong sense of ownership. . . . . It will be considered a significant advantage if you bring . . (These are not required but will help you hit the ground running.). . . Experience with . LangGraph, multi-modal LLMs. and familiarity with tools for . LLM integration and observability . (e.g. LiteLLM, Langfuse, PromptLayer, or WhyLabs) . . Experience with . Lightdash. , . Snowflake,. or modern BI tooling. . Working knowledge of . TypeScript. , particularly for building or maintaining back end services (e.g., Node.js or serverless APIs). . Understanding of . translation quality metrics. (BLEU, chrF, COMET, MQM, METEOR). . Previous experience with . MLOps. principles. and tooling (e.g. MLflow, Kedro) and/or ML platforms (e.g. SageMaker, Vertex AI). . . . . Our Benefits. . . Competitive . salary. and employee stock options plan. . Fully remote and flexible working hours . . Co-working budget. . Flexible vacation policy. . Equipment budget to set up your home office. . Learning & Development program. . Health insurance. . Wellness benefits. . Great startup atmosphere, team spirit, and team events. . . . We are committed to a culture of inclusion and equal opportunities. Therefore, we welcome applications from people of all gender identities, sexual orientations, personal expressions, relationship, marital, or civil partnership statuses, racial identities, national or ethnic origins, religious beliefs, ages, and disability statuses. . .