Qureos

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Backend Software Engineer (Mid/Senior) — 4 yrs experience

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Location: Hybrid

Type: Full-time

Level: Mid/Senior ( Not for freshers)

Role Purpose

Design, build, and optimize backend services supporting user management, application features, and platform-wide capabilities. This includes identity and profile services, messaging and notifications, and backend performance improvements.

Key ResponsibilitiesBackend Services & APIs

· Develop and maintain core backend services such as authentication, user accounts, and profile management.

· Build and document RESTful APIs for various application features (e.g., events, polls, or similar modules).

· Implement and maintain business logic for user preferences, points, or other engagement systems.

Messaging & Notifications

· Implement push notifications, email messages, and in-app alerts.

· Integrate with common notification providers (e.g., FCM, APNs).

· Build simple notification preference and delivery management.

Performance & Platform Engineering

· Optimize API and database performance, including query tuning.

· Implement caching strategies using tools like Redis or equivalent technologies.

· Develop shared internal libraries or components (e.g., configuration, feature flags).

· Conduct load testing, monitoring, and performance analysis.

Quality & Reliability

· Ensure data integrity, security best practices, and privacy-aware handling.

· Write unit, integration, and basic load tests.

· Maintain observability and reliability for critical systems.

Requirements

· 3–4+ years of backend engineering experience.

· Proficiency with at least one backend language (e.g., Go, Java, or similar).

· Strong understanding of REST API development.

· Experience with relational databases (PostgreSQL, MySQL).

· Knowledge of authentication, session management, and general backend architecture.

· Familiarity with basic messaging or notification patterns.

Nice-to-Have

· Experience with gamification, loyalty systems, or similar engagement features.

· Exposure to identity providers (e.g., OAuth-based systems, national ID integrations).

· Knowledge of localization, notification templating, or multi-region message delivery.

· Experience with backend performance tuning, profiling tools, or leaderboard-style scaling.

Job Type: Full-time

Pay: ₹500,000.00 - ₹1,000,000.00 per year

Experience:

  • Back-end development: 4 years (Required)
  • Front-end development: 4 years (Required)

Work Location: In person

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