Senior Python Engineer - Backend & Data (Remote)

Bold Business; Bengaluru; On-site; INR 1,200,000 - 2,000,000; Full time

Job summary

Bold Business is seeking a Senior Python Engineer in Bengaluru, India. The role involves ownership of backend systems and the data layer, focusing on building production APIs using Python and FastAPI. Candidates must demonstrate strong SQL skills, experience with data pipelines, and the ability to handle real-world data. This is a hands-on position requiring high accountability and expertise in API integrations. Emphasis on clear communication in English is essential to operate within a U.S.-based team environment.

Qualifications

• 4–6 years of experience in production backend and data work using Python.
• Demonstrated experience with building and maintaining production Python APIs.
• Strong understanding of SQL, database schema design, and performance considerations.

Responsibilities

• Build and maintain production Python APIs.
• Design and run data pipelines including ETL processes.
• Own data quality through validation, monitoring, and failure handling.

Skills

Python

FastAPI or similar frameworks

Strong SQL and database design

API integrations (REST, webhooks)

Testing and clean Git workflows

Tools

PostgreSQL

Docker

AWS

GCP

Job description

About Bold Business

Bold Business is an AI-first U.S.-based company building automation systems, AI agents, and production software for clients like AT&T, JP Morgan, and Verizon. We ship real systems that deliver impact — not experiments.

The Role

We’re hiring a Senior Python Engineer who can own both backend systems and the data layer behind them. This role sits between backend and data — you will build APIs, design pipelines, and ensure the data powering AI systems is clean and reliable. You’ll work under a Lead Architect. You are expected to execute independently and own outcomes.

What You’ll Do

• Build and maintain production Python APIs (FastAPI or similar)
• Design and run data pipelines (ETL, ingestion, transformation)
• Own data quality — validation, monitoring, failure handling
• Structure data for RAG systems and AI agents
• Design and manage databases (PostgreSQL + vector DBs)
• Integrate external systems (APIs, webhooks, third-party tools)

Non-Negotiables (Knockout Requirements)

You should not apply if you cannot clearly demonstrate all of the following:

• Strong English communication (written and spoken) — you can clearly explain technical concepts to non-technical stakeholders and operate in a U.S.-based team environment.
• You have built and maintained production Python APIs (not tutorials or small scripts — real systems in use)
• You have owned data pipelines end-to-end (ingestion → transformation → reliability in production)
• You are strong in SQL and database design (schemas, performance, tradeoffs — not just basic queries)
• You have worked with real, messy data (multiple sources, failures, edge cases — not clean datasets)

Required Skills

• Python (4–6 years, production backend + data work)
• FastAPI or similar frameworks
• Strong SQL and database design
• API integrations (REST, webhooks)
• Testing and clean Git workflows

AI / Data Context (Expected Working Level)

• LLM API integration (OpenAI, Anthropic, etc.)
• Understanding of how RAG systems use data
• Prompt structure and output handling
• Exposure to vector databases (pgvector, Pinecone, etc.)

Nice to Have

• LangChain, LangGraph, CrewAI
• Airflow, Prefect, or pipeline orchestration
• AWS / GCP experience
• Docker / CI-CD
• Basic BI / analytics tools

What This Role Is

• A hands-on builder role
• Ownership of backend + data layer
• High accountability, low hand-holding

What This Role Is Not

• Not a pure Data Engineer
• Not an ML research role
• Not a junior position

Final Note

• We will go deep into your past work.
• If you can clearly explain what you built, why you built it that way, and what broke — you’ll do well here.
• If not, this role will be a stretch.

About Bold Business — AI-First. Delivery-First.

Bold Business is a US-based global business process outsourcing (BPO) firm with over 25 years of experience and $7B+ in client engagements. We help fast-growing companies scale through smart talent strategies, automation, and technology-driven solutions.

Bold Business recruiters always use a “@boldbusiness.com” email address and/or from our Applicant Tracking System, Greenhouse. Any variation of this email domain should be considered suspicious. Additionally, Bold Business recruiters and authorized representatives will never request sensitive information in email or via text.