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Salary
$8.9k – $14k per year
Location
Hybrid (Kolkata, India)
Seniority
Senior · 5+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 31, 2026. First seen by Alion on Jun 10, 2025. Piston Technologies scores D on the Alion truth index.

Overview
Company
Impact
Profile match
Piston Technologies develops Piston Pay, a payments platform for the United States retail fuel market that works with major oil companies, fuel retailers and fleets. It hires business development and partnerships leaders, backend developers and sales development and account executives for network and contractor fleet customers. The company is headquartered in Cupertino, California, United States.

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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