Backend Engineer
Qureos
Date: 1 day ago
City: Karachi
Contract type: Full time
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
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
- 5+ 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
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