Backend Developer – Python (fastapi)

Year    WB, IN, India

Job Description

Backend Developer - Python(FastAPI)



Kolkata | Full-Time |

Join a fast-growing Kolkata-based fintech startup revolutionizing trading tech. We're building an ultra-efficient, AI-powered desktop trading platform for professional traders and prop desks. As a

Backend Developer

, you'll help design and scale the core infrastructure that powers real-time trading, intelligent analytics, and secure financial operations.

What You'll Build & Own



Async Python backends

for real-time trade execution and multi-broker API integration (e.g., Zerodha, Upstox etc)

C++ modules

for latency-critical components with advanced memory and performance optimization

WebSocket infrastructure

for high-speed data streaming and live client communication

Encrypted data storage

using SQLite (SQLCipher) and PostgreSQL

Authentication & authorization layers

, with secure cloud-based login systems (JWT, OAuth2)

AI integration layers

for news feeds, signal processing, and voice-over generation

Tech Stack & Best Practices



Languages:

Python, C++, JavaScript, Rust

Databases:

PostgreSQL, SQLite (SQLCipher)

Cloud Platforms:

AWS, GCP, Azure (bonus)

Security:

JWT, OAuth2, HTTPS, encryption standards

DevOps:

Docker, Kubernetes, CI/CD pipelines

Tools:

Git, async I/O debugging, SQL profiling

Scalability:

Redis, Kafka, distributed systems, load balancing, caching strategies

Development Practices:

Code reviews, unit/integration testing, documentation, system design discussions

Who We're Looking For



3-5 years experience

in backend or full-stack development (exceptional freshers with solid portfolios welcome) Proficient in

Python, C++

, system architecture, and

API development

Strong foundation in

security best practices

and

scalable backend infrastructure

Enthusiastic about

fintech, algorithmic trading

, and building high-performance software

Detail-oriented

, collaborative, and eager to grow in a fast-paced team environment
If you're excited to build the next generation of trading technology -- with real impact and cutting-edge tools --

apply now and shape the future of fintech with us!



Send your GitHub link or portfolio to

supriyo@bluebuckresearch.com



Job Type: Full-time

Pay: Up to ?75,000.00 per month

Location Type:

In-person
Work Location: In person

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Job Detail

  • Job Id
    JD3826877
  • Industry
    Not mentioned
  • Total Positions
    1
  • Job Type:
    Full Time
  • Salary:
    Not mentioned
  • Employment Status
    Permanent
  • Job Location
    WB, IN, India
  • Education
    Not mentioned
  • Experience
    Year