Back End Developer

Backend Developer — Python / FastAPI

Experience: 3+ years

Employment: Full-time

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 hands-on experience

FastAPI

Strong practical experience

REST APIs

Strong understanding

PostgreSQL

Strong — queries, joins, indexing, optimization

SQL

Strong

NoSQL

Good understanding

Redis / Caching

Good practical understanding

AWS

Good working knowledge

CI/CD

Basic–Intermediate

Git

Strong

Testing

Pytest / unit & integration testing

React

Basic understanding

System Design

Good understanding

Docker

Good to have

Linux

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:

• US financial markets
• Asset management
• Investment management
• Portfolio management
• Securities / investments
• Financial reporting
• Investment/portfolio data
• SEC filings and financial data
• BDC / private credit
• Equity and debt instruments
• Financial SaaS products

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:

Business Requirement → Data Model → API Design → Backend Logic → Database → Caching → Testing → Deployment → Frontend Integration

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

• Docker / Kubernetes
• AWS EC2, S3, RDS, CloudWatch, Lambda
• Redis
• Celery / background jobs
• Airflow
• Snowflake
• Financial/SEC data experience
• Experience with high-volume financial data
• Microservices architecture
• WebSockets
• Experience working with US-based financial products