Senior Golang Developer

Calsoft; Pune District, Nagpur District; On-site; INR 2,000,000 - 4,000,000; Full time

Benefits offered by this job

Growth opportunities

Health insurance

Flexible work hours

Job summary

Calsoft in Pune seeks a hands-on Backend Developer (Golang + Python) to design and build scalable backend systems. You will write clean, production-grade code, design APIs and contribute to system architecture for high-performance apps.

Key responsibilities include building robust services, collaborating with cross-functional teams, and ensuring best practices in coding, testing, and maintainability for 5–8 years of backend experience.

Qualifications

• HANDS-ON backend developer with 5–8 years of production experience.
• Strong Go and Python development for scalable systems.
• Familiar with microservices and API security.
• Experience designing robust REST and gRPC APIs.

Responsibilities

• Design, develop and maintain robust backend services and APIs.
• Write production-ready code in Golang and Python.
• Build scalable, reliable systems with performance focus.
• Collaborate with cross-functional teams to deliver end-to-end solutions.
• Debug, optimize and improve existing systems; ensure code quality and testing.

Skills

Golang

Python

API design

REST API

Goroutines

Concurrency

Tools

Django

Flask

FastAPI

Docker

Kubernetes

gRPC

Prometheus

Job description

Job Brief:Golang Backend DevelopmentDescription:

Job Title: Backend Developer (Golang + Python) Role Overview We are looking for a highly hands-on Backend Developer with 58 years of experience in Golang and Python to design and build scalable backend systems. This role requires strong coding expertise, problem-solving skills, and the ability to work on production-grade systems. You will be actively involved in writing clean, efficient code, designing APIs, and contributing to system architecture for high-performance applications. Key Responsibilities Design, develop, and maintain robust backend services and APIs Write high-quality, production-ready code in Golang and Python Build scalable and reliable systems with a focus on performance and efficiency Collaborate with cross-functional teams to deliver end-to-end solutions Debug, optimize, and improve existing systems Ensure best practices in code quality, testing, and maintainability Core Technical Requirements Golang (Primary Focus) Strong hands-on experience in Go programming Deep understanding of: Goroutines and concurrency patterns Channels and synchronization (mutexes, wait groups, etc.) Proven experience in building backend services or microservices using Go Strong coding skills with emphasis on: Performance optimization Error handling Writing clean, maintainable code Good understanding of REST API design Familiarity with gRPC and Prometheus (good to have, not mandatory) Python Strong experience in backend development using Python Hands-on experience with frameworks such as: Django / Django REST Framework Flask FastAPI Experience building and maintaining RESTful APIs Strong understanding of: Database design (SQL/NoSQL) API security, authentication, and authorization Ability to write efficient, scalable backend logic Additional Skills (Preferred) Experience with Docker and Kubernetes Exposure to cloud platforms (AWS / Azure / GCP) Understanding of CI/CD pipelines Experience with distributed systems and messaging queues Familiarity with observability tools (logging, monitoring, tracing) What We’re Looking For Strong emphasis on hands-on coding and problem solving Ability to work in a fast-paced, product-driven environment Solid understanding of system design and backend architecture Ownership mindset and attention to detail Experience 5–8 years of relevant backend development experience Demonstrated experience in building and scaling real-world systems