Willi Anugerah Raharjo
Willi Anugerah Raharjo

Senior Backend Engineer

Actively looking · Member since 19 Oct 2026
Location
Indonesia
Desired salary
Unspecified
Work preference
Remote Only
Experience level
Senior

About

Professional summary

I am a Senior Backend Engineer with 9 years of experience building backend, full-stack, and data-intensive systems using Python and Go.

I have delivered enterprise client projects across fintech, payments, government, logistics, and marketplace domains. My work includes fraud detection, real-time payment systems, agent banking, data warehousing, and digital marketplaces.

I specialize in designing and operating microservices, REST APIs, ETL pipelines, and event-driven architectures. I am particularly experienced with Apache Kafka workloads that process hundreds of thousands of records daily and millions during peak periods.

I have owned services from system design through deployment and production support. I work with Kubernetes, Docker, Jenkins, Grafana, PostgreSQL, MySQL, Redis, and HBase to deliver reliable production systems.

I have led engineering teams, planned technical delivery, reviewed code, mentored developers, and worked directly with clients. I am looking for a senior backend or full-stack role, ideally in fintech, payments, or data-heavy products.

I am based in Indonesia and open to remote opportunities worldwide.

Skills

41 capabilities

Tech stack & tools

Working toolkit

Analytics

Application Hosting

Libraries

Experience

Career history

Senior Software Engineer / Full Stack Engineer PT Sharing Vision Indonesia

I deliver client projects for an IT consultancy across banking, government, logistics, and marketplace domains. My responsibilities span backend engineering, full-stack development, data engineering, system design, technical leadership, deployment, and production support.

For Bank Rakyat Indonesia, I built Go microservices and REST APIs for Fraud Detection, BI-FAST, BRILink, BRIVA, Behaviour Scoring, and Credit Card systems. I also developed Python Flask APIs and ETL services, optimized Kafka consumers to clear hundreds of millions of queued messages in five days, improved a core service's processing time by approximately 70%, and supported Kafka migration activities.

I deploy and operate services using Docker, Kubernetes, Jenkins, Grafana, PostgreSQL, MySQL, and HBase. I have reviewed code, mentored backend and frontend developers, and worked directly with clients.

Recent work includes modernizing legacy systems for SKK Migas, leading four engineers for the Pelindo Port Marketplace, contributing to a data warehouse project for DJBC, and developing Python FastAPI backend APIs and an admin site for the HRTA Gold marketplace.

Full Stack Developer / System Analyst / Technical Lead PT Mizan Media Utama

I led the design and delivery of the Adhara Port Marketplace, a platform used by more than 50 users.

I built the backend in Go using Apache Kafka and PostgreSQL, and developed the frontend with Next.js. I also divided work across the engineering team, reviewed code, and served as the primary technical contact for the client.

Full Stack Engineer PT Indra Jaya Swastika

I rewrote a legacy HTML and JavaScript frontend using React and helped migrate the Java backend to Spring Boot while adding new product features.

I also worked with Python and Apache Superset to build and support data dashboards.

Education

Learning history

Politeknik Elektronika Negeri Surabaya (PENS)

S.St. (Applied Bachelor's), Informatics Engineering

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