Senior Backend Developer

AjnaLens; Thane; On-site; INR 4,000,000 - 7,000,000; Full time

Job summary

AjnaLens in Thane, Maharashtra, India is seeking a Senior Software Engineer / Technical Architect for its B2C platform. The role demands 8+ years in backend design, cloud-native infrastructure, and building high-scale consumer products.

You will own architecture, drive technical decisions, and mentor colleagues in a fast-paced, product-focused environment. Join a team delivering real-time, personalized experiences with scalable microservices, real-time data pipelines, and LLM-enabled features.

Qualifications

• 8+ years in backend development and scalable system design.
• Experience building high-scale consumer-facing platforms.
• Strong cloud-native infrastructure experience (AWS/GCP).

Responsibilities

• Architect and build scalable backend services using Python (FastAPI/Django).
• Lead decisions on infrastructure, real-time data pipelines, LLM-integrated systems, and platform observability.
• Collaborate cross-functionally to ship user-first features at scale.

Skills

Python

Django

FastAPI

Microservices

Streaming pipelines

Event-driven systems

Redis

PostgreSQL

PGVector

AWS

GCP

LLM

RAG

Vector search

GPT workflows

System design

Mentoring

ReactJS

DevOps

Containerization

Prometheus

Grafana

OTEL

Tools

Docker

Kubernetes

Prometheus

Grafana

OTEL

Job description

AjnaLens is looking for a Senior Software Engineer / Technical Architect – B2C Platform to join our Product Engineering team at Thane (Maharashtra – India). The ideal candidate should have 8+ years of experience in building high-scale consumer-facing platforms with a strong foundation in backend architecture and engineering execution. This role demands a product mindset, technical depth, and the ability to ship fast in a collaborative, purpose-driven environment. We’re proud to share that Lenskart is now our strategic investor, a milestone that reflects the impact, potential, and purpose of the path we’re walking. Join us as we co-create the future of conscious technology.

Top 3 Daily Tasks:

• Architect and build scalable backend services using Python (FastAPI/Django).
• Lead key decisions on infrastructure, real-time data pipelines, LLM-integrated systems, and platform observability.
• Collaborate cross-functionally with product, design, and infrastructure teams to ship user-first features at scale.

Required: 8+ years of backend development experience with a strong foundation in scalable system design and cloud-native infrastructure.

Top 5 Skills You Should Possess:

• Deep hands-on experience with Python, and frameworks like Django, or FastAPI.
• Proven expertise in building scalable microservices, streaming pipelines, and event-driven systems.
• Strong proficiency with Redis, PostgreSQL, PGVector, and one or more cloud platforms (AWS/GCP).
• Exposure to LLM features like RAG, vector search, GPT workflows, or chatbot architectures
• Solid system design capabilities, with the ability to lead architecture reviews and mentor junior developers.
• Comfort with front-end tools like ReactJS for building internal dashboards or quick user-facing utilities.
• Understanding of modern DevOps practices, containerization, and observability tools like Prometheus, Grafana, and OTEL.

Bonus Points For:

• Experience working with Agentic systems, real-time infra, or AI-driven product features.
• Prior involvement in building high-performance consumer products from scratch.
• Passion for conscious innovation and building tech that impacts millions.

What You’ll Be Creating:

• A robust, scalable backend powering our next-gen B2C platform.
• Real-time, intelligent user experiences that blend performance with personalization.
• A tech foundation that reflects AjnaLens’ vision of building mindfully, at scale.