I'm Mirko Miličević, a Senior Software Engineer focused on building scalable, reliable systems and data-driven applications. I design backend architectures, optimize data flows, and deliver production-grade services with high performance and stability. I specialize in Python, Go, Ruby on Rails, and Node.js, and have hands-on experience with RESTful and GraphQL APIs. I work with relational and NoSQL databases, implement caching, asynchronous processing, and efficient data handling, and design distributed systems for real-world reliability. I enjoy working across the stack when needed—frontend frameworks like React.js, Vue.js, and Next.js are within reach, and I also bring a grounding in C/C++ and exposure to ML/NLP concepts to support pragmatic problem solving. I’m passionate about clean, maintainable code and collaborating with cross-functional teams to ship impactful features quickly.

I'm Mirko Miličević, a Senior Software Engineer focused on building scalable, reliable systems and data-driven applications. I design backend architectures, optimize data flows, and deliver production-grade services with high performance and stability. I specialize in Python, Go, Ruby on Rails, and Node.js, and have hands-on experience with RESTful and GraphQL APIs. I work with relational and NoSQL databases, implement caching, asynchronous processing, and efficient data handling, and design distributed systems for real-world reliability. I enjoy working across the stack when needed—frontend frameworks like React.js, Vue.js, and Next.js are within reach, and I also bring a grounding in C/C++ and exposure to ML/NLP concepts to support pragmatic problem solving. I’m passionate about clean, maintainable code and collaborating with cross-functional teams to ship impactful features quickly.

Available to hire

I’m Mirko Miličević, a Senior Software Engineer focused on building scalable, reliable systems and data-driven applications. I design backend architectures, optimize data flows, and deliver production-grade services with high performance and stability.

I specialize in Python, Go, Ruby on Rails, and Node.js, and have hands-on experience with RESTful and GraphQL APIs. I work with relational and NoSQL databases, implement caching, asynchronous processing, and efficient data handling, and design distributed systems for real-world reliability. I enjoy working across the stack when needed—frontend frameworks like React.js, Vue.js, and Next.js are within reach, and I also bring a grounding in C/C++ and exposure to ML/NLP concepts to support pragmatic problem solving. I’m passionate about clean, maintainable code and collaborating with cross-functional teams to ship impactful features quickly.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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Language

Serbian
Fluent
English
Fluent
Chinese
Advanced

Work Experience

Senior Full Stack Engineer at TrueCar, Inc.
July 1, 2024 - October 1, 2025
Designed and maintained backend services and APIs with a focus on reliability and data consistency. Built and optimized RESTful APIs to synchronize data between services and frontend applications. Improved backend performance through Redis caching and efficient data handling. Supported production deployments and system stability using AWS and CI/CD pipelines. Collaborated across teams to deliver scalable features with a backend-driven architecture.
Senior Full Stack Engineer at FutureLearn Limited
September 1, 2022 - June 1, 2024
Developed and maintained backend systems and APIs using Ruby on Rails, Python, and Node.js. Designed RESTful and GraphQL APIs to support data integration across platform services. Improved performance of high-traffic endpoints through backend optimization and efficient data processing. Worked with frontend systems (React, TypeScript) while maintaining a primary focus on backend logic. Supported cloud infrastructure and deployment pipelines using AWS, Heroku, and CI/CD tools.
Full Stack Engineer at Levi9 Global Sourcing B.V.
October 1, 2019 - August 1, 2022
Built full-stack applications with a focus on backend APIs and data processing workflows. Developed backend services using PHP, improving data handling efficiency and system performance. Integrated frontend components with backend services, ensuring reliable data exchange. Contributed to system improvements, debugging, and deployment processes. Integrated third-party services to enhance functionality and data flow.
Intern Web Developer at Zühlke Engineering AG
December 1, 2018 - September 1, 2019
Assisted in development and maintenance of web applications using HTML, CSS, JavaScript, and PHP. Supported feature implementation, debugging, and basic backend logic. Gained practical experience with version control, testing, and development workflows. Collaborated with senior developers to improve internal tools and usability.

Education

Bachelor of Computer Science at Faculty of Organizational Sciences, University of Belgrade
October 1, 2014 - November 1, 2018
Bachelor of Computer Science at Faculty of Organizational Sciences, University of Belgrade
October 1, 2014 - November 1, 2018

Qualifications

Back-End Development and APIs - freeCodeCamp
January 11, 2030 - June 16, 2026
Front-End Development and APIs - freeCodeCamp
January 11, 2030 - June 16, 2026
Ruby on Rails Developer Certificate - The Odin Project
January 11, 2030 - June 16, 2026
Back-End Development and APIs
January 11, 2030 - June 16, 2026
Front-End Development and APIs
January 11, 2030 - June 16, 2026
Ruby on Rails Developer Certificate
January 11, 2030 - June 16, 2026

Industry Experience

Software & Internet, Education, Professional Services, Media & Entertainment