Full stack developer (Python)-6

Realign Llc; Sunnyvale (CA); On-site; USD 120,000 - 160,000; Full time

Job summary

Realign Llc in Sunnyvale, CA is seeking a talented Python Backend Developer to design, build, and maintain high-performance cloud applications. You will focus on server-side logic, secure APIs, and data persistence, collaborating with frontend, product, and DevOps to deliver scalable microservices powering our platforms.

You will work on system design, API development, database optimization, security, testing, CI/CD, and cloud deployment, ensuring robust performance and data integrity across

Qualifications

• Experience with distributed systems design, load balancing, caching, and scalability.
• Strong knowledge of data structures and algorithms.
• Deep Python 3.10+ with asyncio; experience with FastAPI, Django, or Flask.
• Proficiency with relational databases (SQL Server, PostgreSQL, MySQL) and ORM tools like SQLAlchemy or Django ORM.
• Experience designing RESTful APIs and integrating with third-party systems.
• Experience with Poetry or Pipenv and Pytest/unittest.
• Git mastery for branching, merging, and PRs.

Responsibilities

• Design and scale distributed backend systems.
• Develop high-throughput, secure RESTful APIs and microservices.
• Optimize database schemas and data persistence with ORM.
• Implement authentication and authorization security.
• Write unit, integration, and regression tests.
• Containerize apps and deploy to cloud infrastructure.
• Troubleshoot performance, memory leaks, and query bottlenecks.

Skills

Distributed systems

Data structures

Core Python

Web frameworks

Relational DBs

ORM/ODM

API design

Build tools

Git

Tools

Poetry

Pipenv

Pytest

Job description

Sunnyvale, California 94043 Posted October 1st, 2026

We are seeking a talented and motivated Python Backend Developer to design, build, and maintain our high-performance cloud applications. In this role, you will focus on building robust server-side logic, developing secure APIs, and managing data persistence layers. You will collaborate closely with frontend engineers, product managers, and DevOps teams to deliver scalable microservices that power our core business platforms.

Key Responsibilities

• System Design: Architect and scale distributed backend systems that handle high traffic, concurrency, and data throughput.
• API Development: Design, develop, and maintain high-throughput, secure RESTful APIs and microservices.
• Database Management: Optimize database schemas, write complex SQL queries, and manage data persistence using ORM frameworks.
• Security & Auth: Implement and maintain robust security protocols for authentication and authorization.
• Testing Automation: Write comprehensive unit, integration, and regression test suites to ensure high code quality.
• CI/CD & Cloud: Package applications into containers and assist in deploying services to cloud infrastructure.
• Performance Tuning: Troubleshoot, debug, and optimize application performance, memory leaks, and query bottlenecks.

Required Skills & Qualifications

• System Design: Proven experience with distributed systems design, load balancing, caching strategies, and system scalability.
• Data Structures & Algorithms: Strong foundational knowledge of data structures (trees, graphs, hash maps) and algorithms to write highly efficient code.
• Core Python: Deep knowledge of Python 3.10+, handling async programming (asyncio), and memory management. Python Ecosystem: Hands-on experience with modern web frameworks like FastAPI, Django, or Flask.
• Databases: Strong proficiency in relational databases (SQLserver, PostgreSQL, MySQL) and ORM/ODM tools (SQLAlchemy, Django ORM).
• API Design: Proven experience designing clean RESTful web services and integrating with third-party systems.
• Build & Test Tools: Daily experience using dependency managers like Poetry or Pipenv, alongside testing tools like Pytest and unittest.
• Version Control: Mastery of Git for branching, merging, and pull requests.

Job Type: Full Time

Job Category: IT

Role: Full-stack developer - Python

Location: Sunnyvale, CA (Onsite)

Fulltime – Permanent