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Energetic and adaptable Software Engineer with experience across the full software development life cycle, from planning to launch. Skilled in building scalable systems and optimizing backend performance, I thrive in collaborative environments and am always eager to learn and improve. Working with diverse teams has given me a deep understanding of different perspectives, enabling me to build robust and efficient solutions.…Energetic and adaptable Software Engineer with experience across the full software development life cycle, from planning to launch. Skilled in building scalable systems and optimizing backend performance, I thrive in collaborative environments and am always eager to learn and improve. Working with diverse teams has given me a deep understanding of different perspectives, enabling me to build robust and efficient solutions.

Andy Fransisko

Web Developer, Full Stack Developer, Back-End Developer, +2

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Energetic and adaptable Software Engineer with experience across the full software development life cycle, from planning to launch. Skilled in building scalable systems and optimizing backend performance, I thrive in collaborative environments and am always eager to learn and improve. Working with diverse teams has given me a deep understanding of different perspectives, enabling me to build robust and efficient solutions.…Energetic and adaptable Software Engineer with experience across the full software development life cycle, from planning to launch. Skilled in building scalable systems and optimizing backend performance, I thrive in collaborative environments and am always eager to learn and improve. Working with diverse teams has given me a deep understanding of different perspectives, enabling me to build robust and efficient solutions.

Available to hire

Energetic and adaptable Software Engineer with experience across the full software development life cycle, from planning to launch. Skilled in building scalable systems and optimizing backend performance, I thrive in collaborative environments and am always eager to learn and improve. Working with diverse teams has given me a deep understanding of different perspectives, enabling me to build robust and efficient solutions.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

AI Collection (Video)

Intermediate

Elixir

Intermediate

Language

English

Fluent

Indonesian

Fluent

Work Experience

Software Engineer at Goto Group (Gojek)

July 1, 2025 - Present

Part of the merchant platform team. Design, build, and optimize large-scale merchant platform services capable of handling millions of merchant records with high availability and low latency. Develop and maintain APIs, data pipelines, and backend services that ensure secure, real-time processing of merchant onboarding, authentication, and transaction data. Collaborate with product managers, data engineers, and infrastructure teams to deliver scalable solutions that support rapid growth of the merchant ecosystem.

Software Engineer II at Trilogy Group

July 1, 2025 - January 31, 2026

Leveraged AI-assisted development to accelerate feature design and implementation, significantly reducing development cycle time while maintaining high code quality. Applied AI tools to streamline analysis, prototyping, and debugging, improving overall engineering efficiency and delivery speed. Contributed as a core member of the cost optimization team, identifying and implementing technical and architectural improvements, resulting in approximately USD 3 million in annual cost savings through system optimization, performance improvements, and operational efficiencies.

Freelance AI Model Trainer at Mindrift

April 1, 2025 - Present

Contributed to LLM quality improvement by evaluating model responses against accuracy, reasoning, and instruction-following criteria. Conducted side-by-side comparisons of Response A vs. Response B, identifying strengths, weaknesses, and common failure patterns. Provided structured preference feedback with clear justification to guide model tuning and RLHF workflows. Identified hallucinations, logical errors, and edge-case failure modes, supplying actionable insights to improve model reliability and consistency.

Freelance AI Model Trainer at Alignerr (LabelBox)

June 1, 2025 - Present

Evaluated and compared LLM responses on Alignerr (LabelBox), identifying strengths, weaknesses, and instruction-following issues to improve model output quality. Provided structured preference judgments with clear, evidence-based rationale, directly contributing to supervised fine-tuning and RLHF workflows. Performed voice data labeling and validation on Alignerr (LabelBox), ensuring transcription accuracy, intent alignment, and adherence to annotation guidelines. Evaluated model-generated function calls for correctness, parameter accuracy, and schema compliance to ensure reliable downstream execution.

Software Engineer at ByteDance (TikTok Shop)

May 1, 2022 - July 31, 2025

Part of the Search Architecture Team, working to enhance search performance and user experience for TikTok Shop. Implemented a disaster-recovery cache, preventing millions of empty search results and ensuring high availability of search responses. Designed and optimized high-performance search pipelines handling billions of seller product data using Elasticsearch, Kafka, and NSQ. Integrated data science models to improve product search relevance, collaborating closely with data science teams and implementing solutions in Go. Conducted code reviews to improve code quality, maintainability, and scalability.

Software Engineer at Bank Sinarmas

July 1, 2021 - May 31, 2022

Maintained and enhanced backend services for the company’s digital banking application using Java. Conducted system analysis and recommended architectural improvements to enhance performance and reliability. Ensured seamless integration of internal services to support business functions and improve user experience.

Full Stack Developer at Gandiwa Nusantara

January 1, 2021 - July 1, 2021

Revamped the company’s main website using React.js, improving load times and performance with modern JavaScript frameworks. Developed a business intelligence dashboard using Spring Boot, enabling users to extract insights from large data sets for data-driven decision making. Collaborated with UI/UX designers to implement responsive and intuitive design principles.