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Back End Developer

Calsoft

Job Brief: Golang + Python Backend Development

Work Mode : 3 days WFO

Interview Process :

Online Test

L1 Interview

Client Interview (F2F Mandatory )

Manager Round

HR Round

Description- Job Title: Backend Developer (Golang + Python)

Role Overview : We are looking for a highly hands-on Backend Developer with 7–9 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 7–9 years of relevant backend development experience
  • Demonstrated experience in building and scaling real-world systems

Vacancy posted 20 hours ago
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