Python Developer

Valiant Technologies LLC; Buffalo (NY); On-site; USD 90,000 - 130,000; Full time

Job summary

Valiant Technologies LLC is seeking a backend developer to design, implement, and maintain scalable Python applications. You will build RESTful APIs using Django, Flask, and FastAPI, and optimize database schemas with PostgreSQL/MySQL.

You will ensure secure, tested, and reliable services while collaborating with cross-functional teams in an Agile/Scrum environment. The role emphasizes API integration, data processing, and deploying services on cloud platforms such as AWS.

Qualifications

• Bachelor's degree in Computer Science, IT, or related field.
• Experience building Python backend apps with Django/Flask/FastAPI.
• Strong understanding of OOP, data structures, and algorithms.
• Experience with API development, database design, and integration.
• Knowledge of testing, debugging, version control, and deployment processes.
• We are an equal opportunity employer; merit, competence and performance drive hiring.

Responsibilities

• Designed, developed, and maintained scalable backend apps using Python and frameworks.
• Developed RESTful APIs with Django REST Framework, Flask, and FastAPI.
• Implemented business logic, data processing, and backend services.
• Designed and optimized database schemas using PostgreSQL, MySQL, and SQL Server.
• Integrated third-party applications via REST APIs and JSON data exchange.
• Developed reusable Python modules to improve maintainability.
• Implemented authentication, authorization, data validation, and error handling.
• Used Pandas and NumPy for data manipulation when needed.
• Wrote unit tests and integration tests with PyTest and unittest.
• Identified and resolved bugs, bottlenecks, and production issues.
• Used Git for version control; participated in code reviews and PRs.
• Containerized apps with Docker and supported CI/CD deployments.
• Deployed and maintained Python apps on AWS or Azure.
• Participated in requirements analysis, design, coding, testing, and deployment.
• Collaborated with cross-functional teams in Agile/Scrum to deliver software.

Skills

Python

SQL

Education

Bachelor's degree in Computer Science, Information Technology, or a related field

Tools

Django

Flask

FastAPI

PostgreSQL

MySQL

AWS

Docker

Git

CI/CD

Jenkins

Job description

Technology Stack: Python, Django, Flask, FastAPI, REST APIs, SQL, PostgreSQL, MySQL, AWS, Docker, Git, CI/CD

Roles and Responsibilities

Designed, developed, and maintained scalable backend applications using Python and related frameworks.

Developed RESTful APIs using Django REST Framework, Flask, and FastAPI to support application integration.

Implemented business logic, data processing, and backend services to meet business requirements.

Designed and optimized database schemas, SQL queries, stored procedures, and database transactions using PostgreSQL, MySQL, and SQL Server.

Integrated third‑party applications and external services using REST APIs and JSON‑based data exchange.

Developed reusable Python modules, functions, and libraries to improve code maintainability and reusability.

Implemented authentication, authorization, data validation, and exception handling to ensure application security and reliability.

Used Pandas and NumPy for data manipulation, transformation, and processing when required.

Wrote unit tests and integration tests using PyTest and Python's unittest framework.

Identified and resolved bugs, performance bottlenecks, and production issues.

Used Git for version control and collaborated with development teams through code reviews and pull requests.

Containerized applications using Docker and supported deployment through CI/CD pipelines.

Deployed and maintained Python applications on cloud platforms such as AWS or Microsoft Azure.

Participated in requirements analysis, technical design, coding, testing, deployment, and production support.

Collaborated with cross‑functional teams in an Agile/Scrum environment to deliver high‑quality software solutions.

Technical Skills

Programming: Python, SQL

Frameworks: Django, Flask, FastAPI

DevOps: Docker, Git, Jenkins, CI/CD

Testing: PyTest, unittest, API testing

Tools: VS Code, Postman, Jira

Methodologies: Agile, Scrum, SDLC

Qualifications

Bachelor's degree in Computer Science, Information Technology, or a related field.

Experience developing applications using Python and backend frameworks.

Strong understanding of object‑oriented programming, data structures, and algorithms.

Experience with database design, API development, and application integration.

Knowledge of software testing, debugging, version control, and deployment processes.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.