Back End Developer

Decipher Financials; Gurugram District; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

Decipher Financials is seeking an experienced Backend Developer to design scalable services using Python and FastAPI. You will work with PostgreSQL/SQL, NoSQL, Redis caching, and AWS, collaborating closely with React frontend developers to define API contracts.

The role emphasizes understanding business requirements and delivering end-to-end backend solutions in a fast-paced financial data environment. Ideal candidates will have 3+ years of backend experience, strong knowledge of REST APIs,

Qualifications

• 3+ years of professional backend development experience.
• Strong Python and FastAPI expertise with PostgreSQL/SQL.
• Experience with AWS, CI/CD, and NoSQL databases; ability to design scalable backend systems.

Responsibilities

• Design, develop, and maintain scalable backend services using Python and FastAPI.
• Develop REST APIs and backend business logic.
• Work with PostgreSQL/SQL, including complex queries and database design.
• Use NoSQL databases like MongoDB and implement caching with Redis.
• Collaborate with React frontend developers to define API contracts.
• Contribute to deployment, cloud infrastructure, and CI/CD pipelines.
• Troubleshoot production issues and write unit/integration tests.

Skills

3+ years backend experience

Understanding business requirements

Collaborate with frontend teams

Tools

Python

FastAPI

PostgreSQL

SQL

NoSQL

Redis

AWS

CI/CD

Git

Pytest

React

Docker

Job description

Primary Stack: Python, FastAPI, PostgreSQL

About the Role

We are looking for an experienced Backend Developer with 3+ years of hands‑on experience in Python and FastAPI. The ideal candidate should be able to independently understand business requirements, design scalable backend solutions, work closely with frontend developers, and contribute to deployment and cloud infrastructure.

Experience working with US financial services, asset management, investment management, portfolio data, or related financial products will be highly valuable.

Key Responsibilities

• Design, develop, and maintain scalable backend services using Python and FastAPI.
• Develop and maintain REST APIs and backend business logic.
• Work extensively with PostgreSQL and SQL, including complex queries, joins, indexing, optimization, transactions, and database design.
• Have practical knowledge of NoSQL databases such as MongoDB or similar technologies.
• Implement caching and performance optimization using Redis or similar caching technologies.
• Design clean, maintainable, and reusable backend architecture.
• Understand business requirements and independently convert them into technical solutions.
• Work closely with React/frontend developers to define API contracts, data structures, validations, and integration requirements.
• Coordinate with frontend, QA, and product teams to deliver features end-to-end.
• Work with AWS services and understand basic cloud architecture, deployment, monitoring, and security practices.
• Understand and work with CI/CD pipelines, Git, automated builds, testing, and deployment processes.
• Troubleshoot production issues, performance problems, API failures, and database issues.
• Write unit/integration tests and maintain good code quality.
• Participate in code reviews and contribute to backend architecture and technical decisions.
• Understand and work with financial/asset-management data and business workflows.

Required Technical Skills

Python

Strong practical experience

FastAPI

Strong practical experience

REST APIs

SQL

Strong

NoSQL

Redis / Caching

AWS

Good working knowledge

CI/CD

Basic-Intermediate

Git

Strong

Testing

Pytest / unit & integration testing

React

System Design

Docker

Good to have

Good to have

Business & Domain Skills

The candidate should be capable of understanding business requirements rather than only implementing tickets.

Experience with any of the following would be valuable:

• Asset management
• Investment management
• Securities / investments
• SEC filings and financial data
• BDC / private credit
• Equity and debt instruments

What We Expect From the Candidate

The person should be able to take a requirement such as:

"We need to fetch financial data, process it, store it, expose it through APIs, and make it available to the frontend."

and independently think through:

They should not require step-by-step instructions for every technical decision.

Ideal Candidate Profile

We're looking for someone who:

• Has 3+ years of professional backend development experience.
• Is strong in Python + FastAPI.
• Has strong PostgreSQL/SQL knowledge.
• Understands both relational and NoSQL databases.
• Understands caching and performance optimization.
• Has practical AWS and CI/CD exposure.
• Can independently debug and solve production issues.
• Can communicate effectively with frontend and QA teams.
• Understands React/API integration at a practical level.
• Can understand business requirements and convert them into technical implementation.
• Has experience in US Finance / Asset Management or is capable of learning the domain quickly.
• Takes ownership of features rather than only completing assigned coding tasks.

Nice to Have

• AWS EC2, S3, RDS, CloudWatch, Lambda
• Redis
• Celery / background jobs
• Airflow
• Snowflake
• Experience with high-volume financial data
• WebSockets
• Experience working with US-based financial products