.Net Developer

Genzeon Global; Hyderabad; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

Genzeon Global is seeking a Dev/Senior Developer in Hyderabad, India to take the lead on developing Lambda services, shared client libraries, and backfill tooling. The ideal candidate will have robust backend engineering skills and hands-on AWS serverless experience.

Key skills include .Net with 4+ years production experience, AWS Lambda for function deployment, and REST API integration. Candidates should have a strong understanding of Kafka message production and familiarity with data pipeline design.

Qualifications

• .Net: 4+ years production experience.
• Practical experience with AWS Lambda and serverless architecture.
• Experience integrating third-party REST APIs.

Responsibilities

• Build Lambda services and shared Ometria client library.
• Implement Kafka producer logic and backfill tooling.
• Design data pipeline and DynamoDB schemas.

Job description

The Dev / senior developer is the primary builder for both Lambda services, the shared Ometria client library, Kafka producer logic, and backfill tooling. This role requires strong backend engineering skills with hands‑on AWS serverless experience.

Required skills:

• .Net: 4+ years production experience in the primary Lambda runtime; ability to write clean, testable, well‑structured code with proper error handling and logging.
• AWS Lambda & serverless: Practical experience building and deploying Lambda functions, including timeout management, concurrency configuration, cold‑start optimisation, and Step Functions for orchestration if needed.
• REST API integration: Experience consuming third‑party REST APIs with pagination, rate‑limit handling, retry/backoff strategies, and authentication (API key headers). Familiarity with Ometria or similar marketing platform APIs is a plus.
• Apache Kafka: Hands‑on experience producing messages to Kafka topics, including AVRO serialisation, Schema Registry integration, producer configuration (acks, retries, idempotency), and troubleshooting publish failures.
• AVRO & Schema Registry: Ability to define, version, and register AVRO schemas; understanding of schema evolution (backward/forward compatibility) and contract‑first design.
• Amazon DynamoDB: Experience designing table schemas (partition/sort keys), managing read/write capacity, implementing TTL policies, and using DynamoDB for cursor/state persistence and configuration storage.
• Data pipeline design: Understanding of batch/incremental ingestion patterns, idempotency strategies (composite keys, deduplication), cursor‑based change tracking, and data correctness in distributed systems.
• Testing: Strong unit testing discipline; experience with integration testing using mocks, stubs, or sandbox environments for external APIs and Kafka.
• Experience with Snowflake or data warehouse ingestion patterns.
• Familiarity with Ometria’s API v2 (contacts, lists, list changes endpoints).
• Experience with historical backfill tooling (phased execution, rate‑limit‑aware replay).
• Knowledge of PII handling and data minimisation in event‑driven architectures.