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Thermo Fisher Scientific

Makes lab instruments, reagents and supplies

Algorithm and AI Senior/Staff Engineer

AI Application EngineeringConfirmed live in the last 24 hours
Full-timeSingaporeNo salary listedIn-person

About the Job

Requirements

  • A Master’s degree in Computer Sciences, Mathematics, Statistics, Bioinformatics, or a related field.
  • At least 5 years of hands-on experience developing production-level chatbots, including at least 1 year building LLM-based agents.
  • Hands-on experience with major LLMs and APIs such as OpenAI, LangChain, Anthropic, and Hugging Face, and expertise in prompt and context engineering for LLMs.
  • Deep experience with retrieval-augmented generation pipelines and vector or hybrid search, including tools such as FAISS, pgvector, and Pinecone, rerankers, and grounding or citation techniques.
  • Experience developing and integrating tools using Model Context Protocol, including defining tool capabilities and managing access permissions.
  • Demonstrated ability to develop resilient chatbots with state management, tool or function integration, fallback strategies, and multilingual support.
  • Proficiency in Python is mandatory.
  • Experience managing AI agent safety, including content moderation, policy enforcement, red-teaming, and hallucination mitigation.
  • Hands-on experience profiling AI agent system performance, including batching or streaming, asynchronous processing or concurrency, caching, and cost or latency budgeting.
  • Experience evaluating LLMs using tools such as RAGAS, G-Eval, or similar, and familiarity with offline and online metrics and A/B testing frameworks.
  • Experience managing LLM lifecycles in production, including versioning, rollback, and continuous improvement, as well as cloud-based CI/CD and containerized deployments.
  • Strong communication skills to present work to technical specialists and non-experts.
  • Ability to work independently and collaboratively in cross-functional teams.
  • Ability to define ambiguous tasks, establish clear goals, iterate rapidly, request feedback, and follow through.

Responsibilities

  • Architect, build, and deploy LLM-powered agent systems, including chatbots, copilots, and agents, that are safe, fast, and cost-efficient.
  • Own the product development lifecycle from building and prototyping through evaluation, hardening, and monitoring.
  • Build retrieval-augmented generation pipelines covering indexing, chunking, embeddings, reranking, and grounding.
  • Apply context engineering, including prompt design, tool calling, memory, compression, and context-window strategy.
  • Integrate tools through Model Context Protocol and other agent frameworks.
  • Design and deploy production-grade chatbots with multi-turn conversation flows, escalation mechanisms, and integrated safety guardrails for web, mobile, and internal platforms.
  • Implement risk controls including safety filters, jailbreak resistance, personally identifiable information redaction, abuse detection, and audit logs.
  • Optimize performance, including latency, efficiency, token and cost budgets, streaming, caching, and model routing.
  • Establish evaluation practices using golden sets, retrieval-augmented generation and grounding scores, toxicity measures, A/B tests, and latency and cost benchmarks.
  • Operate production systems using tracing, prompt and version lineage, drift detection, incident response, and service-level objectives.
  • Collaborate with software, hardware, and data science teams to ensure algorithms meet product requirements and integrate into production systems.
  • Mentor junior AI engineers, set coding standards and documentation, and advocate for LLM engineering guidelines, including reproducibility, to ensure algorithm reliability and transparency.
  • Stay informed about new technologies and industry standards to improve development and evaluation methodologies.

Desired Qualifications

  • A Ph.D. or equivalent experience is highly preferred.
  • Familiarity with TypeScript, Java, JavaScript, or Matlab.
  • Familiarity with data systems including SQL or NoSQL, message queues, object storage, and schema design for documents and metadata.
  • Understanding of AI system security, data privacy, and compliance considerations in production environments.
  • Proven proficiency advising junior AI engineers and supporting team-level technical direction.
  • Experience with observability tools and practices, including logging, distributed tracing such as OpenTelemetry or equivalent, and metrics monitoring such as Prometheus and Grafana.
  • Hands-on experience with AWS SageMaker, Bedrock, Step Functions, and other relevant AWS services to build, deploy, and orchestrate AI agents in scalable, production-grade workflows.
  • Experience in the biotechnology industry.

About the Company

Thermo Fisher Scientific

Makes lab instruments, reagents and supplies

Thermo Fisher Scientific makes and sells the instruments, chemicals, consumables and lab services that drug companies, hospitals, universities and industrial labs use for research, testing and production. Its products cover work from gene sequencing and protein analysis to diagnostic tests and lab freezers, and its distribution arm ships supplies to labs worldwide. Drug developers also hire it to run clinical trials and to manufacture medicines under contract. It earns money from consumables that labs buy again and again, along with instrument sales, service contracts and outsourcing fees. The company traces its roots to Thermo Electron, founded in 1956, which merged with Fisher Scientific in 2006, and it is based in Waltham, Massachusetts.

Company size
10,001+
Company stage
IPO
Headquarters
Waltham, MA
Founded
1956

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