Backend & Integration Engineer

Stella Technology; Islamabad; On-site; PKR 1,800,000 - 3,000,000; Full time

Job summary

Stella Technology is seeking a Backend & Integration Engineer to design, develop, and manage scalable backend systems and seamless integrations across platforms.

This role requires strong Java expertise (8+), Spring Boot, and microservices, with hands-on API work and data exchange using HL7, FHIR, JSON, and XML. You will collaborate with product, QA, and DevOps to deliver secure, well-documented solutions.

Qualifications

• Bachelor's degree in Computer Science, IT, or a related field.
• 4-6 years of hands-on backend development using Java (8+).
• Strong experience with Spring Boot and related frameworks.
• Solid understanding of microservices and distributed systems.
• Experience with HL7 and FHIR data formats.

Responsibilities

• Design, develop, and maintain backend services using Java and Spring.
• Build and manage RESTful APIs for system integrations.
• Implement data exchange using HL7, FHIR, JSON, and XML.
• Work with microservices across distributed systems.
• Collaborate with product, QA, and DevOps teams.
• Ensure security, data governance, and documentation.

Skills

Java 8+

Spring Boot

RESTful APIs

Microservices

HL7

FHIR

JSON

XML

SQL

Swagger/OpenAPI

Education

Bachelor's degree in Computer Science or IT

Tools

Swagger/OpenAPI

Job description

We are seeking a Backend & Integration Engineer to design, develop, and manage scalable backend systems and seamless integrations across platforms. This role is ideal for someone with strong Java expertise who enjoys building APIs, working with microservices, and enabling efficient data exchange between systems.

What You’ll Do:

• Design, develop, and maintain backend services using Java (8+) and Spring frameworks (Spring Boot, Spring Core, Spring Cloud, Spring Data JPA, Hibernate)
• Build and manage RESTful APIs for system integrations and external/internal services
• Implement and support data exchange solutions using standards such as HL7, FHIR, JSON, and XML
• Work with microservices architecture across distributed systems
• Integrate third-party systems, applications, and platforms, ensuring smooth and reliable data flow
• Perform testing (unit, integration) and troubleshoot issues to ensure system stability
• Collaborate with cross-functional teams, including product, QA, and DevOps
• Ensure compliance with security, data governance, and industry standards
• Maintain technical documentation and support system enhancements

What We’re Looking For:

• Bachelor’s degree in Computer Science, IT, or a related field
• 4-6 years of hands-on experience in backend development using Java (8+)
• Strong experience with Spring Boot and related frameworks
• Solid understanding of microservices architecture and distributed systems
• Experience designing and consuming RESTful APIs (Swagger/OpenAPI is a plus)
• Proficiency in SQL and working with databases
• Familiarity with integration standards (HL7, FHIR) and data formats (JSON, XML)
• Understanding of SDLC, version control, and CI/CD pipelines
• Strong problem-solving and analytical skills
• Good communication and collaboration abilities