Senior Software Engineer

4 weeks ago


Karachi, Sindh, Pakistan Paysys Labs Full time

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Human Resource Executive | Technical Recruitment | Training & Development | HR Operations | Employee Engagement

Job Responsibilities:

  • Architect, develop, maintain, and enhance complex back-end features and services using Java Spring Boot and other server-side technologies, ensuring scalability, reliability, and high performance.
  • Design and implement modular and reusable code libraries, focusing on scalability and maintainability to support future application growth and evolving requirements.
  • Lead the integration of external APIs and data sources, collaborating closely with front-end and cross-functional teams to ensure seamless data flow, functionality, and optimal user experience.
  • Optimize database performance through effective schema design, indexing, and query tuning, while managing connections and ensuring efficient data access patterns.
  • Deliver clean, maintainable, and well-documented code by adhering to advanced coding standards, industry best practices, and ensuring peer code review feedback is applied effectively.
  • Drive and conduct comprehensive code reviews, mentoring team members to enhance code quality, adherence to standards, and team collaboration.
  • Develop and maintain robust unit, integration, and performance tests, ensuring system reliability, stability, and seamless deployment in production environments.
  • Stay ahead of emerging trends in Java, Spring Boot, and back-end architecture, and proactively introduce new tools, technologies, or methodologies to the team.
  • Take ownership of technical specifications, development roadmaps, and project deliverables, ensuring clarity and alignment with organizational goals.
  • Serve as a technical leader within the team by mentoring junior developers, troubleshooting critical issues, and advocating for continuous process improvement in development practices.

Job Requirements:

  • Education: Bachelor's or master's degree in computer science, Software Engineering, or a related field.
  • Experience: 4-6 years of hands-on experience in back-end development, with a strong focus on Java Spring Boot and associated technologies.

Technical Skills:

  • Extensive knowledge of object-oriented programming (OOP) principles, design patterns, and best practices.
  • Experience with Java 8+ features, including Streams, Lambdas, and Functional Programming concepts.
  • Proven track record of designing and developing scalable microservices using Spring Boot.
  • Advanced experience in developing, consuming, and securing REST APIs.
  • Proficiency in Spring Framework modules, such as Spring Security, Spring Data JPA, Spring Batch, and Spring Cloud.
  • Strong experience with SQL databases (e.g., Oracle, SQL Server).
  • Deep understanding of RESTful API design, including versioning, documentation (e.g., Swagger/OpenAPI), and best practices.
  • Expertise in implementing security mechanisms like OAuth2, JSON Web Tokens (JWT), and basic cryptographic techniques.
  • Experience with GraphQL APIs is a plus.
  • Knowledge of scalable architecture patterns, including load balancing, caching, and horizontal scaling.
  • Familiarity with CI/CD pipelines, Docker, Kubernetes, and other DevOps practices.
  • Experience with monitoring and logging tools like Prometheus, Grafana, or ELK stack.
  • Advanced experience with Git, including branching strategies, merge workflows, and repository management.
  • Analytical Skills: Proven ability to independently analyze and resolve complex back-end challenges, optimize performance, and enhance code quality.
  • Collaboration: Demonstrates strong collaboration skills by effectively working with cross-functional teams, mentoring junior developers, conducting code reviews, promoting best practices, and taking ownership of projects to drive technical discussions and deliver high-quality solutions.
  • Learning Agility: Exhibits a strong eagerness to stay updated with the latest technologies, frameworks, and industry trends, coupled with the ability to quickly adopt and lead the implementation of new tools, processes, andmethodologies.
Seniority level
  • Seniority levelMid-Senior level
Employment type
  • Employment typeFull-time
Job function
  • Job functionEngineering and Information Technology

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