Senior Backend Engineer

6 days ago

Bengaluru, Karnataka, India Lucio Full time ₹ 1,04,000 - ₹ 1,30,878 per year

Job Title:
Senior Backend Engineer

Mode:
WFO in Bangalore

Working hours:
10 am to 7 pm

Days:
5 days/week

About Lucio:

We're an AI product company that wants to transform the legal industry using generative AI. We're a rapidly growing team with a truly innovative product that is already being used at many top law firms in the country.

We're building a team of talented developers who are passionate about building products that solve real-world problems. At Lucio, you'll work on powerful AI-driven products—whether it's fine-tuning large language models (LLMs), creating robust data processing pipelines, or scaling distributed services.

We're looking for a Backend Engineer who:

  • Has solid experience with Python (Celery, Flask, Gevent, Tesseract, PyTorch).
  • Has built performant and scalable backend systems.
  • Is comfortable working on distributed applications and asynchronous task queues.
  • Has exposure to OCR tools, document processing, or integrating LLMs.
  • Has worked (or is eager to work) on generative AI products.
  • Has basic familiarity with & JavaScript (preferred, not mandatory).
  • Understands fundamentals of Generative AI or Machine Learning.

Responsibilities:

  • Design, build, and maintain efficient, scalable, and reliable backend systems.
  • Collaborate with AI researchers and product teams to integrate ML/LLM models.
  • Work closely with frontend developers, DevOps, QA engineers, product managers, and the design team to deliver cohesive, high-quality features.
  • Optimize infrastructure for performance, scalability, and cost.
  • Write clean, maintainable, and testable code with proper documentation.
  • Solve real-world challenges in processing and managing legal documents.
  • Participate in code reviews and contribute to continuous improvement.

Who You Are:

  • You have 4+ years of experience building backend systems.
  • You've worked on independent projects or in fast-paced product teams.
  • You're passionate about clean architecture, scalability, and AI-driven innovation.
  • You thrive in a startup environment and take ownership of your work.
  • A CS degree is not a must—skillset and mindset matter more.

To apply:
Submit this technical puzzle

Pay and Benefits:

  • Competitive salary based on experience.
  • Unlimited leaves (including sick leaves, period leaves, and more).
  • Inclusive, diverse, and innovation-first work culture.
  • A high-autonomy, zero-politics environment that values growth and ownership.

Selection Process:

  • Tech Puzzle (you'll love this if you've done CTF/HackTheBox)
  • Intro Call (HR)
  • Technical Deep-Dive (w/ Backend Lead)
  • Optional Coding Round (w/ Head of Engineering)
  • Culture Fit Interview (Founder)

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