Harbinger Systems
Senior Software Engineer (ROR & NestJs)
Skills
1 month ago
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Important information
Contract type:
Permanent
Location:
Pune, Maharashtra, India
Work mode:
Hybrid
Published on:
24 September 2026
What they need
Position: Associate Tech Specialist - Backend (Nest.js)
Experience: 6 to 8 years
Location- Pune (Hybrid)
Job Description:
We're looking for a Associate Technical specialist to help build and scale a production REST API. Our stack currently leans toward Ruby/Rails, but we're framework-agnostic when it comes to experience strong backgrounds in Django, Laravel, NestJS, or Spring are all welcome. What matters most is deep, senior-level expertise building and operating ORM-backed REST APIs in production.
Required Skills & Experience
- Senior-level backend experience building and maintaining an ORM-backed REST API using Rails, Django, Laravel, NestJS, or Spring
- PostgreSQL — schema design, query performance, and data integrity in production systems
- Background job processing — hands-on experience with Sidekiq, SQS, Celery, Bull, or equivalent, including designing for idempotency and safe retries
- Automated API testing — proficiency with RSpec, pytest, JUnit, or equivalent testing frameworks
- Authentication & authorization — practical experience with token-based and OAuth flows
- Search infrastructure — experience with OpenSearch or Elasticsearch, including query DSL, nested queries, and reindexing strategies
- External system integrations — experience integrating with an external system of record; Salesforce experience strongly preferred
- Willingness to work in Ruby/Rails — no prior Rails experience required, but candidates must be open to learning and working in it day-to-day
Nice to Have:
- Rails / Ruby experience
- Salesforce sync experience (SOQL, object mapping, polling, push-on-change patterns)
- PeopleSoft, SOAP, or other ERP integration experience
- AWS services (S3, SQS, RDS)
- Docker Compose
- Feature flag systems and progressive rollout practices
Person should be flexible to work between 7 PM to 10.30 PM IST as customer calls happen during this time period.
Once in every 3 months person will need to stay back and attend Planning increment meeting which go beyond 12 midnight for 5 days.
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