Backend Developer — Python / FastAPI

n Experience: 3+ years

nEmployment: Full time

nPrimary Stack: Python, FastAPI, PostgreSQL

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nAbout the Role

nWe 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.

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

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nKey Responsibilities

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

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nPython

nStrong hands-on experience

nFastAPI

nStrong practical experience

nREST APIs

nStrong understanding

nPostgreSQL

nStrong — queries, joins, indexing, optimization

nSQL

nStrong

nNoSQL

nGood understanding

nRedis / Caching

nGood practical understanding

nAWS

nGood working knowledge

nCI/CD

nBasic–Intermediate

nGit

nStrong

nTesting

nPytest / unit & integration testing

nReact

nBasic understanding

nSystem Design

nGood understanding

nDocker

nGood to have

nLinux

nGood to have

nBusiness & Domain Skills

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

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nExperience with any of the following would be valuable:

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- US financial markets
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- Asset management
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- Investment management
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- Portfolio management
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- Securities / investments
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- Financial reporting
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- Investment/portfolio data
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- SEC filings and financial data
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- BDC / private credit
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- Equity and debt instruments
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- Financial SaaS products
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nWhat We Expect From the Candidate

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

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

nand independently think through:

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

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

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nIdeal Candidate Profile

nWe're looking for someone who:

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

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- Docker / Kubernetes
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- AWS EC2, S3, RDS, CloudWatch, Lambda
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- Redis
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- Celery / background jobs
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- Airflow
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- Snowflake
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- Financial/SEC data experience
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- Experience with high-volume financial data
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- Microservices architecture
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- WebSockets
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- Experience working with US-based financial products
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📌 Back End Developer (Haryana)
🏢 Decipher Financials
📍 Haryana