Proximity Works

Backend Engineer – AI-Powered Search and Applications

Proximity Works

full-time

Posted on:

Origin:  • 🇮🇳 India

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Job Level

Mid-LevelSenior

Tech Stack

AWSDistributed SystemsGoJavaKafkaMicroservicesPython

About the role

  • Design and build scalable microservices that power Proximity’s AI-driven search and discovery stack.
  • Develop backend services and APIs to support LLM-powered applications.
  • Collaborate with ML engineers and data scientists to integrate RAG pipelines, multimodal models, and inference workloads into production.
  • Optimize inference pipelines for latency, throughput, and cost efficiency (e.g., batching, caching, token budgeting).
  • Own end-to-end delivery of complex backend projects, from design to deployment and monitoring.
  • Write high-quality, maintainable code with rigorous testing and fault-tolerant practices.
  • Drive operational excellence through performance tuning, incident response, and root cause analysis.
  • Work cross-functionally with Product Managers, Data Scientists, and global engineering teams to translate business needs into scalable technical solutions.
  • Deliver robust, resilient backend systems with high availability, reduced inference latency, and lower infrastructure costs.
  • Maintain clear documentation and monitoring practices to ensure operational smoothness.

Requirements

  • Bachelor’s or Master’s degree in Computer Science or a related field.
  • 4–6 years of backend development experience, ideally with exposure to AI or large-scale data systems.
  • Proficiency in Java, Golang, or Python with strong coding and system design fundamentals.
  • Experience designing and scaling distributed systems at production scale.
  • Exposure to LLM inference setups (e.g., vLLM, Hugging Face Inference, Triton).
  • Strong debugging, profiling, and performance tuning skills for latency-sensitive applications.
  • Knowledge of storage systems, query optimization, and caching strategies.
  • Hands-on experience with AWS (preferred), Kafka, and CI/CD pipelines.
  • Ability to work autonomously and deliver in fast-paced environments.
  • Passion for mentoring engineers and leading by example.
  • Curiosity about ad-tech and search systems, and how to optimize them for user and business outcomes.