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Backend Developer

Piston Technologies
CompanyPiston Technologies
CategoryEngineering
LocationKolkata
RemoteOn-site (inferred)
EmploymentNot stated
LevelNot stated
SalaryNot stated by the employer
Posted10 Jun 2025
Last verified30 Jul 2026
SourceEmployer career page (greenhouse)
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Description
  Job description Job Title:  Backend Developer  Location:  Kolkata, West Bengal (or specify remote/hybrid options)  Experience:  5+ years Job Summary: We are seeking a highly skilled Backend Developer with extensive experience in PostgreSQL and database architecture. The ideal candidate will be proficient in building scalable and efficient backend systems using ExpressJS. You will work closely with our development team to optimize databases, enhance application performance, and create robust backend solutions. Key Responsibilities: Design, develop, and maintain backend services using  ExpressJS . Architect, optimize, and manage  PostgreSQL  databases for high performance and scalability. Implement  database schemas , indexing strategies, and query optimizations. Collaborate with frontend developers and stakeholders to ensure seamless integration of backend services. Develop  RESTful APIs  and integrate third-party services. Ensure  security best practices , including authentication and authorization. Perform  code reviews , troubleshoot bugs, and optimize backend performance. Maintain documentation and participate in team discussions on system architecture. Requirements: 5+ years of experience in backend development. Expertise in  PostgreSQL , including query optimization, replication, and indexing. Strong understanding of  database architecture  and relational database design principles. Proficiency in  ExpressJS  and Node.js.. Experience with  cloud platforms  (AWS, GCP, or Azure) is a plus. Familiarity with  containerization (Docker, Kubernetes)  and CI/CD processes. Knowledge of  Git , testing frameworks, and Agile development methodologies. Ability to work independently and collaborate effectively in a team. Preferred Qualifications: Experience with microservices architecture. Exposure to caching mechanisms like Redis. Strong problem-solving skills and analytical thinking. Job Types : Full-time,   Permanent Pay : ₹840,000.00 - ₹1,300,000.00 per year   Benefits : Health insurance Paid sick time Paid time off Provident Fund Location Type : In-person Schedule : Day shift Monday to Friday Weekend availability Ability to commute/relocate : Kolkata, West Bengal: Reliably commute or planning to relocate before starting work (Required) Education : Bachelor's (Preferred) Experience : Back-end development: 5 years (Required) Express.js: 4 years (Required) Node.js: 3 years (Required) APIs: 3 years (Required) PostgreSQL: 4 years (Required) Location : Kolkata, West Bengal (Preferred)  
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