Technical Lead (Python, React & AI)

Stack

Responsibilities

• ▹Own the overall architecture: frontend, backend, AI services, database, cloud
• ▹Data modelling for fund mechanics — cash flows, NAV, performance metrics, position-level credit data
• ▹Own the analytics engine
• ▹Build the AI layer (conversational Q&A, document ingestion, report generation)
• ▹Establish engineering standards: testing, CI/CD, security, observability
• ▹Make technical decisions and communicate the trade-offs behind them

Requirements

• ▹8-12 years shipping production software, ideally with private credit, private markets, or capital markets experience
• ▹3-5 of those years in a tech lead or staff engineer role
• ▹Shipped LLM features to production users — evals, guardrails, prompt versioning, cost control
• ▹Comfortable across the whole stack, with real depth in backend and data
• ▹Strong in Python and TypeScript/Node, fluent in React/Next.js
• ▹Strong on PostgreSQL and data pipelines — schema design, query performance, ETL/ELT, analytical workloads at scale
• ▹Built and operated systems handling significant data volume and concurrency in production
• ▹Production experience with AWS — IAM, networking, S3, RDS, containerised workloads
• ▹Designs for security, auditability, and data sensitivity from day one
• ▹Team's stack: Next.js, NestJS, FastAPI, PostgreSQL with pgvector, AWS (S3, RDS, IAM, containerised workloads), LangChain and LangGraph for orchestration, LiteLLM for model routing, AWS Textract for OCR, Docker and infrastructure-as-code

Soft skills

What we offer

• ▹Competitive salary in PKR
• ▹Hybrid work model (Islamabad office + remote flexibility for other cities)
• ▹Health insurance including in-patient and out-patient coverage
• ▹Life, accidental & emergency coverage
• ▹Annual, sick, maternity, and paternity leave as per company policy
• ▹Professional growth and learning opportunities
• ▹Collaborative and innovative work environment

About the company

31 Green Ltd is a forward-thinking IT organization focused on delivering innovative digital solutions and scalable software products, committed to building high-quality, user-centric products that drive business growth.