DcentraLab

Lead Backend Developer

DcentraLab

full-time

Posted on:

Origin:  • 🇺🇸 United States

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Job Level

Senior

Tech Stack

ApolloAWSDjangoEC2FlaskMongoDBPostgresPythonSolidityWeb3

About the role

  • Lead backend development : Drive feature design, architecture decisions, and technical roadmap for the platform.
  • Research & Development (R&D) : Experiment with new technologies, AI models, and scraping methods to continuously improve data quality and system performance.
  • Web scraping & data pipelines : Design and maintain robust scraping systems using Python libraries (e.g., Scrapy, Requests, BeautifulSoup, Playwright).
  • Database management : Optimize and maintain PostgreSQL (with Alembic/Alchemy) and MongoDB (vector search/embeddings).
  • AI & agent integration : Work with LLMs (ChatGPT, Perplexity) and CrewAI to build and scale AI-driven features.
  • DevOps & infrastructure : Manage AWS services (S3, EC2, Lambda, CloudWatch, API Gateway, SageMaker) and automation (Bash scripting, cron jobs).
  • Blockchain expertise : Analyze and interact with smart contracts (Solidity – entry level), understand blockchain data structures, and integrate relevant protocols.
  • Team leadership : Mentor developers, perform code reviews, enforce best practices, and ensure high-quality deliverables.
  • Integration management : Oversee and expand integrations with 3rd-party APIs and services (TalkJS, Slack, Twitter, Apollo, etc.).

Requirements

  • 5+ years of backend development experience , with at least 2 years in a lead/architect role.
  • Strong Python skills (FastAPI, Flask, Django or similar).
  • Proven experience with web scraping at scale.
  • Solid understanding of PostgreSQL (schemas, migrations, performance tuning) and MongoDB (vector DB, embeddings).
  • Familiarity with AI/LLM frameworks and data pipelines.
  • Hands-on AWS experience (EC2, S3, CloudWatch, API Gateway, Lambda, SageMaker).
  • Knowledge of blockchain/web3 ecosystems , with the ability to read/write Solidity contracts (entry-level).
  • Strong DevOps skills (Bash, cron, deployment automation).
  • Excellent problem-solving skills and ability to take ownership of complex systems.
  • Strong communication and leadership abilities.
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