Senior Software Engineer

2 weeks ago

Lahore, Punjab, Pakistan Stafflink Full time 1,200,000 - 3,600,000 per year

About the Role

We're looking for a
Senior Software Engineer (Backend/AI)
to join our team and take ownership of building production-ready RAG (Retrieval-Augmented Generation) and agentic AI systems. This role is ideal for someone who thrives in a fast-paced startup environment, loves solving complex technical challenges, and wants to play a critical part in shaping the future of our AI-driven products.

Responsibilities

  • Design and implement
    RAG pipelines and agentic RAG workflows
    using
    LangGraph, LangChain, and PydanticAI (Python)
    .
  • Build robust
    document ingestion pipelines
    (PDF/Office), including chunking, metadata handling, and indexing with vector databases (Pinecone, Weaviate, pgvector).
  • Develop and maintain
    integrations with Microsoft SharePoint and Google Drive/Docs
    (OAuth, webhooks, file sync, permissions).
  • Deploy and manage production pipelines on
    Railway
    .
  • Write
    unit and integration tests
    , enforce coding standards, and make sustainable architecture decisions.
  • Collaborate directly with founders and product teams on
    technical roadmaps and delivery planning
    .

Requirements (5+ years relevant experience)

  • Fluent in English with excellent communication skills.
  • Proven experience in
    backend engineering
    with production-grade systems.
  • Strong background in
    AI/ML with Python
    , specifically
    RAG
    (agentic RAG preferred).
  • Hands-on experience with
    LangGraph, LangChain, and PydanticAI
    .
  • Expertise in
    deploying and operating on Railway
    .
  • Strong experience with
    API integrations
    , particularly
    SharePoint and Google ecosystem
    .
  • Proficiency with
    PostgreSQL
    and
    S3-compatible storage
    .
  • Knowledge of
    vector databases
    (Pinecone/Weaviate/pgvector) and
    embedding strategies
    .
  • Independent, self-driven, with prior
    startup experience
    (or equivalent level of responsibility).

Nice to Have

  • Experience with
    document NLP
    (layout-aware parsing, OCR, table extraction).
  • Knowledge of
    security & compliance
    (GDPR, ISO practices), role/permission models.
  • Familiarity with
    multi-agent systems
    , workflow orchestration, and evaluation frameworks.

Our Tech Stack & Tools

  • Backend:
    Go (primary)
  • AI/Agents:
    Python, LangGraph, LangChain, PydanticAI, RAG/agentic RAG
  • Infrastructure:
    Railway
  • Integrations:
    Microsoft SharePoint, Google Drive/Docs APIs
  • Data/Indexing:
    Vector databases (Pinecone/Weaviate/pgvector), S3-compatible storage, LlamaIndex

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