RemoteLeaf Logo
Log in Sign up

Senior AI Engineer (Search / Retrieval)

3 weeks, 3 days ago
Singapore
Full-time
Senior
AI Engineer
Software Development
Apache Spark AWS Azure CI/CD Elasticsearch Flink GCP Go GraphQL Java Kafka LLM NLP OAuth OpenSearch Python REST API Solr SQL
Apply Now
Workato

Workato

Workato is the Enterprise Automation Platform that enables seamless integration and automation of workflows for both business and IT teams, utilizing AI-powered technology for efficient outcomes.

IT Services
251-1K
Founded 2013
$415M raised
View All Jobs 43

Description

  • Build a unified retrieval layer across enterprise systems and expose an agent-friendly interface.
  • Design hybrid retrieval pipelines combining lexical, dense vector, and structured retrieval with re-ranking.
  • Engineer ingestion and freshness pipelines to sync millions of records with low latency and predictable cost.
  • Own permission-aware retrieval so results exactly mirror source-system access controls.
  • Build query understanding for agents, including intent parsing, entity linking, and LLM-assisted query rewriting.
  • Design chunking and embedding strategies for different content types such as documents, tickets, transcripts, and structured records.
  • Build evaluation and experimentation harnesses for retrieval quality and end-to-end agent answer quality.
  • Ship production-grade systems with strong observability, latency, freshness, recall, and cost SLOs.
  • Mentor teammates and help improve retrieval architecture, evaluation rigor, and engineering craft.

Requirements

  • 3-5 years of experience building production search, retrieval, knowledge-base, or recommendation systems.
  • Strong proficiency in at least one modern backend language such as Python, Go, or Java.
  • Hands-on experience with search engines such as OpenSearch, Elasticsearch, Solr, or Vespa, including index design and analyzers.
  • Solid grounding in IR fundamentals including TF-IDF, BM25, learning-to-rank, query parsing, and relevance evaluation.
  • Working experience with vector search and embeddings using tools such as FAISS, pgvector, Pinecone, Weaviate, Qdrant, Milvus, or native Elasticsearch/OpenSearch kNN.
  • Experience designing or contributing to RAG pipelines and semantic search systems in production.
  • Familiarity with modern NLP/LLM tooling such as transformer embeddings, cross-encoder re-rankers, prompt engineering, LangChain, LlamaIndex, or Haystack.
  • Comfort building integrations with SaaS APIs, including REST, GraphQL, webhooks, OAuth, rate limits, pagination, and incremental sync.
  • Strong intuition for ACL and permission models in enterprise systems and how to preserve them in retrieval layers.
  • Strong SQL skills, comfort with NoSQL/document stores, and experience with large-scale distributed systems.
  • Familiarity with cloud platforms such as AWS, GCP, or Azure, plus containerization and CI/CD.
  • Clear communication skills for explaining technical trade-offs to engineers, PMs, and executives.
  • Collaborative mindset with experience partnering across ML, product, security, and platform teams.
  • Quality-obsessed, detail-oriented, and comfortable driving ambiguous problems from zero to shipped.
  • Nice to have: experience with knowledge graphs, entity resolution, or cross-source identity linking.
  • Nice to have: experience tuning or fine-tuning embedding models such as sentence-transformers, BGE, or E5.
  • Nice to have: exposure to agentic AI patterns such as tool use, function calling, MCP, or multi-step retrieval planning.
  • Nice to have: experience with streaming or real-time ingestion tools such as Kafka, Flink, or Spark, and cost optimization at scale.
  • Nice to have: background in enterprise search, e-discovery, observability, or DLP.
  • Nice to have: open-source contributions, published research, or writing on retrieval, IR, or applied ML.

Benefits

  • Flexible, trust-oriented culture with strong ownership.
  • Balanced focus on productivity and self-care.
  • Vibrant and dynamic work environment.
  • Benefits that support employees inside and outside of work.
  • Recognized as the #1 best company for remote workers.

Interested in this position?

Apply directly on the company website

Apply Now

Similar Roles

Jobrack

Downeast Cider - AI Full Stack Developer

Jobrack 11-50 Professional Services

Downeast Cider is hiring an AI Full Stack Developer to become its first technical employee and build production-ready internal tools that improve operations across the business.

South Africa North Macedonia Poland Romania Serbia Georgia Contract Senior AI Engineer Full-stack Engineer
$60k-$72k
CRM GCP JavaScript NetSuite Python Shopify Snowflake SQL TypeScript
14 hours, 2 minutes ago
Mindrift.ai: Be the “I” in AI

Freelance Chatbot Developer (WhatsApp / Telegram / Discord)

Mindrift.ai: Be the “I” in AI Internet Software & Services

Mindrift is hiring a part-time freelance Bot Developer for the Tendem project to build and refine conversational bots and messaging-platform integrations in a hybrid AI and human workflow.

Costa Rica Jamaica Ecuador Uruguay Part-time Mid Level AI Engineer Backend Engineer
Up to $62k
Docker Node.js OAuth Python REST API Serverless
14 hours, 17 minutes ago
Assistantly

AI Automations Specialist (Systems & Agents Focus)

Assistantly 51-250 Professional Services

Assistantly is hiring an AI Automations Specialist to design and optimize AI-driven workflows and agents for growth-stage client teams, with the goal of reducing manual work and improving business efficiency.

Philippines Full-time Mid Level AI Engineer
JavaScript Python
14 hours, 17 minutes ago
DaCodes

Senior AI Engineer - Generative AI & LLMs - México Only

DaCodes 51-250 Internet Software & Services

DaCodes is seeking a Senior Artificial Intelligence Engineer to join its Data & AI team on a major financial-sector client project in LATAM, where the role will design, build, and evolve production AI solutions for business-critical systems.

Mexico Contract Senior AI Engineer
AWS Azure CI/CD Docker LLM Machine Learning Microservices MLOps Node.js Python REST API SQL
14 hours, 17 minutes ago

You're on a roll! Sign up now to keep applying.

Sign Up

Already have an account? Log in

Used by 14,729+ remote workers