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Backend & API Development

$25/hr Starting at $50

Backend & API Development — Scalable, Secure & Enterprise-Grade Solutions

Are you looking for a reliable Senior Backend Developer who can architect and build robust, high-performance systems from the ground up? I bring over 10 years of backend development experience, specializing in Java (11+), Spring Boot, Python and RESTful APIs, with a strong emphasis on scalability, security, and system performance.

I offer end-to-end backend and API development services for businesses ranging from startups to large enterprises. Whether you need to create a microservices-based architecture, design secure API gateways, or integrate complex third-party services, I can help you build backend systems that are clean, maintainable, and production-ready.

What I Can Do:

  • Design and develop RESTful APIs, SOAP APIs, and microservices

  • Implement secure authentication and authorization flows (OAuth 2.0, JWT, Keycloak)

  • Create and optimize relational database schemas using MySQL or PostgreSQL, including advanced SQL query tuning

  • Develop event-driven services using Apache Kafka and message queues

  • Set up CI/CD pipelines (Jenkins, GitLab CI), containerization with Docker, and deploy to cloud platforms like AWS, Azure, and GCP

  • Write clean, testable code following TDD practices with JUnit, Mockito, and Postman


Why Work With Me?

What sets me apart is my real-world experience in enterprise-grade systems, including secure banking platforms, telecom API integrations, and cloud-native chat applications. I don't just write code—I focus on architectural soundness, performance bottlenecks, and security compliance (PCI DSS, SSL/TLS, data encryption). I’ve also led development teams and mentored junior engineers, ensuring collaborative and agile delivery.

Additionally, while Java is my core strength, I’m also skilled in Python, JavaScript, .NET, and scripting, allowing me to work cross-stack when needed.

If you're looking for a backend developer who understands both the technical depth and the business impact of software architecture, let’s talk!

About

$25/hr Ongoing

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Backend & API Development — Scalable, Secure & Enterprise-Grade Solutions

Are you looking for a reliable Senior Backend Developer who can architect and build robust, high-performance systems from the ground up? I bring over 10 years of backend development experience, specializing in Java (11+), Spring Boot, Python and RESTful APIs, with a strong emphasis on scalability, security, and system performance.

I offer end-to-end backend and API development services for businesses ranging from startups to large enterprises. Whether you need to create a microservices-based architecture, design secure API gateways, or integrate complex third-party services, I can help you build backend systems that are clean, maintainable, and production-ready.

What I Can Do:

  • Design and develop RESTful APIs, SOAP APIs, and microservices

  • Implement secure authentication and authorization flows (OAuth 2.0, JWT, Keycloak)

  • Create and optimize relational database schemas using MySQL or PostgreSQL, including advanced SQL query tuning

  • Develop event-driven services using Apache Kafka and message queues

  • Set up CI/CD pipelines (Jenkins, GitLab CI), containerization with Docker, and deploy to cloud platforms like AWS, Azure, and GCP

  • Write clean, testable code following TDD practices with JUnit, Mockito, and Postman


Why Work With Me?

What sets me apart is my real-world experience in enterprise-grade systems, including secure banking platforms, telecom API integrations, and cloud-native chat applications. I don't just write code—I focus on architectural soundness, performance bottlenecks, and security compliance (PCI DSS, SSL/TLS, data encryption). I’ve also led development teams and mentored junior engineers, ensuring collaborative and agile delivery.

Additionally, while Java is my core strength, I’m also skilled in Python, JavaScript, .NET, and scripting, allowing me to work cross-stack when needed.

If you're looking for a backend developer who understands both the technical depth and the business impact of software architecture, let’s talk!

Skills & Expertise

Back End DevelopmentContent Management SystemsData ManagementE CommerceFront End DevelopmentJavaMySQLPHPProgrammingPythonSoftware DevelopmentSQLWeb DevelopmentWeb ServersWordPress

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