Job Title: Backend Python Developer

Experience: 4 – 6 years

Location: Bangalore

About VectorStack

VectorStack is a tech‐innovation company driving digital transformation and business performance via cloud, AI/ML, software development, and consulting. (vectorstack.co)

We partner with clients across Retail, FinTech, EdTech, AdTech, and more to build scalable, secure, and future-ready technology stacks. 

As a Backend Python Developer at VectorStack, you’ll be part of a core engineering team crafting APIs, backend services, data systems, and helping scale our product offerings and client projects.

Key Responsibilities

• Architect, build, and maintain backend services, APIs, and microservices using Python with Flask and FastAPI frameworks
• Design, develop, and optimize CRUD (create, read, update, delete) operations across databases (MongoDB, SQL or other)
• Model and maintain data schema, indexes, constraints, and relations (where applicable)
• Ensure robust error handling, logging, and validation in APIs
• Optimize performance, scalability, and latency of backend endpoints
• Integrate with other services (internal / external), handling authentication, rate limiting, caching, and versioning
• Deploy, manage, and monitor backend services on AWS (EC2, Lambda, S3, RDS, etc.)
• Write unit tests, integration tests, and perform code reviews
• Maintain documentation (API specs, data models, architect diagrams)
• Collaborate with frontend, DevOps, QA, and product teams to deliver end-to-end solutions
• Stay current with technology trends, propose enhancements, and mentor junior engineers

Required Skills & Qualifications

• 4 to 6 years of software development experience, with a focus on backend systems
• Strong proficiency in Python
• Solid hands-on experience building RESTful APIs and microservices with Flask and FastAPI
• Experience working with MongoDB; also comfortable with at least one relational database (PostgreSQL, MySQL, etc.)
• Depth in designing and implementing CRUD operations, data modelling, query optimization
• Experience deploying and managing services on AWS – including but not limited to EC2, Lambda, S3, RDS, IAM, CloudWatch
• Familiarity with containerization (Docker) is preferred
• Understanding of asynchronous programming / concurrency (asyncio, background tasks)
• Strong debugging, troubleshooting, and performance tuning skills
• Solid experience with version control (Git), CI/CD pipelines, and development best practices
• Good communication skills and ability to collaborate across cross-functional teams

Preferred / Nice-to-Have

• Experience in Kubernetes / orchestration
• Experience with message queues / streaming systems (RabbitMQ, Kafka)
• Knowledge of caching technologies (Redis, Memcached)
• Familiarity with authentication/authorization frameworks (JWT, OAuth2)
• Experience with event-driven architectures
• Exposure to domain areas such as e-commerce, fintech, or SaaS platforms
• Experience with logs & monitoring tools (Prometheus, Grafana, ELK stack)