Senior Backend Developer (Kotlin)

Product, engineering and support teams work out of offices in Lahore, Punjab and two nearshore delivery centres. More than 9,000 organisations use our HR and payroll suite, from regional hospitals to school districts. Code review is required on every pull request, and nobody merges their own changes.

Role overview:

The role is new and comes from growth in our client base. Hazelvault is hiring for the Senior Backend Developer (Kotlin) position to build and run the APIs and services behind our web and mobile apps. The Platform team owns services that process several million requests a day. We need another engineer who is comfortable owning them in production. The company is based in Lahore, Pakistan. The team is spread across multiple countries. We engage team members in India as full-time contractors. Most of our contractors have been with us for more than two years. Standard office hours, Monday to Friday, with flexibility around them. We send you a laptop and the accessories you need on day one.

Job duties:

• Instrument services with metrics, structured logs and OpenTelemetry traces
• Tune slow queries, add indexes and read query plans
• Review code for correctness, performance and failure handling
• Model data and write migrations for PostgreSQL, MySQL or DynamoDB
• Containerize services with Docker and deploy them to Kubernetes or ECS
• Add caching with Redis where it actually helps, and remove it where it doesn't
• Design and build REST and gRPC APIs in Go, Java or Python
• Handle on-call for services the team owns and lead incident follow-ups

Minimum qualifications:

• 6+ years of backend development experience in a production environment
• Hands-on experience with AWS, GCP or Azure services
• Clear written communication, including design docs
• Proficiency in at least one of Go, Java, Kotlin, Python, C# or Node.js

Preferred:

• Elasticsearch or OpenSearch
• Background with high-volume payment or ledger systems
• NoSQL stores such as MongoDB, Cassandra or DynamoDB

Compensation and benefits:

• Company laptop
• Paid in USD

Duration: 9 months. Start: Immediately.

Demo job created on 11jobs for testing and demonstrations. It is not an actual opening at Hazelvault (Pvt.) Ltd..