Backend Engineer
Qureos IncKarachi, Sindh, Pakistan30+ days ago
Job description5+ years of professional experience in backend development Strong proficiency with TypeScript and JavaScript 3+ years of experience with NestJS or similar Node.js frameworks Deep knowledge of MongoDB, including schema design, indexing, and query optimization Experience with ElasticSearch for implementing search functionality and data analytics Understanding of RESTful API design principles and implementation Knowledge of authentication and authorization protocols (OAuth, JWT) Experience with automated testing and CI / CD pipelines Strong problem-solving skills and attention to detail Excellent communication skills and ability to work in a collaborative environment Experience with microservices architecture Knowledge of Docker and Kubernetes Familiarity with cloud platforms (AWS, GCP, or Azure) Experience with message queuing systems (Kafka, RabbitMQ) Understanding of AI / ML concepts and experience with AI prompting techniques Experience with GraphQL Contributions to open-source projects Bachelor's or Master's degree in Computer Science or related field
About the Role
We are seeking an experienced Senior Backend Engineer to design, develop, and maintain server-side applications using TypeScript, NestJS, MongoDB, and ElasticSearch. The ideal candidate will have strong technical expertise, leadership skills, and the ability to work collaboratively with cross-functional teams to deliver high-performance, scalable backend solutions.
Key Responsibilities
- Design, implement, and maintain efficient server-side logic for web and mobile applications using TypeScript and NestJS
- Develop and optimize MongoDB database structures, queries, and interactions to ensure optimal performance and data integrity
- Create and maintain RESTful APIs with proper authentication and authorization mechanisms
- Leverage ElasticSearch for implementing powerful search capabilities and data analysis features
- Monitor application performance metrics and implement optimizations to enhance system responsiveness
- Implement robust security measures to protect user data and prevent vulnerabilities
- Architect scalable backend systems with fault-tolerance and redundancy built-in
- Collaborate with frontend developers, product managers, and other stakeholders to align technical solutions with business objectives
- Participate in all stages of the development lifecycle from design to deployment and maintenance
- Stay current with industry best practices and emerging technologies to continuously improve our technical stack
Required Qualifications
Preferred Qualifications
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Backend Engineer • Karachi, Sindh, Pakistan
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