Senior ML Engineer (Europe-based/Remote)

Sword Health
Portugal
Workplace: RemoteFull timeEUR 58,100 - 91,300 annuallyFunction: Data Science & Machine LearningSkills: ["Communication","Collaboration","Mentoring"]

Own ML projects end-to-end, from exploration to production deployment, and keep iterating once real users are on the system. Build reliable agentic LLM workflows in production (prompting, retrieval, tool calling, orchestration) for clinical settings. Treat evaluation as core engineering by creating eval sets, offline/online harnesses, and regression tests. Improve model quality using evidence-based prompting, retrieval, distillation, or fine-tuning, and collaborate closely with Product, Clinical, and Engineering.

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Sword Health
Sword Health
2 days ago

Senior ML Engineer (Europe-based/Remote)

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Last checked: 3 hours agoStatus: Live

Job Summary

Own ML projects end-to-end, from exploration to production deployment, and keep iterating once real users are on the system. Build reliable agentic LLM workflows in production (prompting, retrieval, tool calling, orchestration) for clinical settings. Treat evaluation as core engineering by creating eval sets, offline/online harnesses, and regression tests. Improve model quality using evidence-based prompting, retrieval, distillation, or fine-tuning, and collaborate closely with Product, Clinical, and Engineering.
Location: Portugal
Workplace: Remote
Employment Type: Full time
Job Function: Data Science & Machine Learning
Seniority: Mid level

Key Responsibilities

  • •Own ML projects end-to-end, from exploration through production deployment, and iterate after launch.
  • •Design and build agentic LLM systems with reliable multi-step workflows using tools and retrieval for clinical settings.
  • •Build eval sets, offline/online harnesses, LLM-as-judge pipelines with human review, and regression tests to catch quality drops.
  • •Improve model quality using evidence-based prompting, retrieval, distillation, or fine-tuning as appropriate to the problem.
  • •Partner with Product, Clinical, and Engineering to translate clinical requirements into technical decisions and surface tradeoffs early.

Pay and Benefits

Salary: EUR 58,100 - 91,300 annually
Equity and Bonus:Equity

Key Requirements

  • •Experience shipping ML systems to production that people actually depend on.
  • •Hands-on LLM work in production, including prompting, retrieval, tool calling, and agent-style workflows.
  • •Build evaluation datasets and frameworks and clearly demonstrate real improvement vs noise.
  • •Strong ML fundamentals and ability to reason about tradeoffs to match approaches to problems.
  • •Comfort taking loosely defined problems and turning them into production-ready systems.
Experience:Healthcare AILLMApplied AIProduction ML
Skills:CommunicationCollaborationMentoring
Tech Stack:LLMsPromptingRetrievalTool callingAgent workflowsDistributed systemsEvaluationFine-tuningPreference optimizationRLHFDPOOffline and online harnessesLLM-as-judgeModel adaptationServingMonitoringRegression testsData preparationOrchestration

Company Brief

Sword Health
Develops a digital musculoskeletal care platform combining wearable sensors, AI-driven virtual therapists, and clinical care teams to deliver remote physical therapy and rehabilitation programs for employers, health plans, and patients.
Industry: Digital Therapeutics
Company Size: Enterprise (1,001+ employees)
Growth: Scaleup
Headquarters: Porto, Portugal
Founded: 2015
WebsiteLinkedIn