Back End Developer

1 week ago

Cochin, Kerala, India Velodata Global Pvt Ltd Full time ₹ 15,00,000 - ₹ 25,00,000 per year

Job Description

Designation: Senior Backend Data & Integration Engineer (Python/TypeScript, Azure, Integrations)

Experience: 4 -8 Years

Location: Cochin

Job Summary

Build data pipelines (crawling/parsing, deduplication/delta, embeddings) and connect external systems and interfaces.

Key Responsibilities:


• Development of crawling/fetch pipelines (API-first; playwright/requests only where permitted)


• Parsing/normalization of job postings & CVs, deduplication/delta logic (seen hash, repost heuristics)


• Embeddings/similarity search (controlling Azure OpenAI, vector persistence in pgvector)


• Integrations: HR4YOU (API/webhooks/CSV import), SerpAPI, BA job board, email/SMTP


• Batch/stream processing (Azure Functions/container jobs), retry/backoff, dead-letter queues


• Telemetry for data quality (freshness, duplicate rate, coverage, cost per 1,000 items)


• Collaboration with FE for exports (CSV/Excel, presigned URLs) and admin configuration

Must Have Requirements:


• 4+ years of backend/data engineering experience


• Python (FastAPI, pydantic, httpx/requests, Playwright/Selenium), solid TypeScript for smaller services/SDKs


• Azure: Functions/Container Apps or AKS jobs, Storage/Blob, Key Vault, Monitor/Log Analytics


• Messaging: Service Bus/Queues, idempotence & exactly-once semantics, pragmatic approach


• Databases: PostgreSQL, pgvector, query design & performance tuning


• Clean ETL/ELT patterns, testability (pytest), observability (OpenTelemetry)

Nice-to-have:


• NLP/IE experience (spaCy/regex/rapidfuzz), document parsing (pdfminer/textract)


• Experience with license/ToS-compliant data retrieval, captcha/anti-bot strategies (legally compliant)


• Working method: API-first, clean code, trunk-based development, mandatory code reviews


• Tools/stack: GitHub, GitHub Actions/Azure DevOps, Docker, pnpm/Turborepo (Monorepo), Jira/Linear, Notion/Confluence

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