soerja

Suryadi Sulaksono

Designing distributed systems that scale, perform, and stay reliable. With 14 years of software development experience and 6+ years building backend systems at scale.

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12+
Years Experience
20+
Projects Completed
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About Me

Senior Backend Engineer with 12+ years of software development experience and 6+ years building backend systems at scale. I specialize in designing distributed systems and backend architectures that are reliable, performant, and built for growth. Proficient in Golang, Python, Java, and PHP, with deep experience in microservices, APIs, event-driven systems, and cloud infrastructure. Known for solving complex problems, improving system efficiency, and delivering measurable engineering and business outcomes.

12+

Years.

5

Companies.

20+

Projects.

Software HouseTech PropertyE-CommerceMarket SurveySaaS

Featured Projects

SaaS

eSuite (DMS)

Distribution Management Systems, enabled Sales Force Automation, Synchronization to third-party (SAP).

GolangSystem ArchitectEvent-Driven ArchitectureMicroservicesRest APIgRPCMongoDBRabbitMQ
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SaaS

Jakpat

Indonesia's leading open-access mobile market research platform, connecting businesses with a verified panel of over 1.3 million respondents for real-time survey data and insights.

GolangClean ArchitectureSystem ArchitectMicroservicesRest APIMongoDBDynamoDBMySQL
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e-Commerce

Tokopedia

One of Indonesia's largest e-commerce technology unicorns, serving millions of active users and processing massive daily transaction volumes.

GolangDistributed SystemsMicroservicesRest APIgRPCPostgreSQL
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Kaleyo

Developed a mobile-friendly employee reporting system that enabled employees to submit daily reports, streamlining reporting workflows and improving data accessibility

PythonTypescriptJavascriptVue.jsDJangoPostgreSQLWeb
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SaaS

Mamikos

Indonesian proptech platform that connects renters with kosts, apartments, and rental properties through a digital marketplace.

PHPEvent-DrivenMicroservicesRest APILaravelMySQLRedis
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Airside

A digital platform for reporting and managing safety and operational incidents across airport airside operations.

PythonJavascriptRest APIFlaskVue.jsMySQLRedis
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SaaS

Pandora

Enhanced analytics dashboard with sentiment analysis from online news in Indonesia.

ScalaBigDataNLPAnalyticsArangoDB
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KMS

DiSiniSharing

Collaborative workspace with team communication, gamifications, and project visualization dashboards.

ScalaCoffeeScriptLessCassandraNeo4jGraphDBFFMPEG
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Mindtalk

Mindtalk is an interest-based social network where users connect through dedicated channels and share content through a real-time social stream.

ScalaScala.jsPHPPythonCoffeeScriptLessCassandraNeo4jGraphDB
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Experience

My professional journey in Software Development.

October 2024 - Present

Senior Backend Developer

eDot

  • •Developed a digital canvassing order system, replacing manual workflows and reducing paper usage by 80% while improving data accuracy by 30%.
  • •Designed and implemented an event-driven architecture using RabbitMQ for SAP synchronization, reducing sync failures by 40% and improving system reliability.
  • •Built a scalable PDF generation service, reducing document processing time by 60% and improving operational efficiency.
December 2022 - October 2024

Senior Software Engineer Backend

Jakpat

  • •Utilized frontend technologies to process intensive display rendering, enabling the backend to manage core business operations more efficiently.
  • •Introduced structured code practices within Golang microservices, enabling easier onboarding and simplified future enhancements.
  • •Implemented health check and heartbeat mechanisms in microservices, improving service reliability and reducing incident response time by 25%.
  • •Refined backend processes to improve the reliability and speed of internal survey data workflows through targeted service optimizations.
August 2022 - December 2022

Software Engineer Backend

Tokopedia

  • •Monitored and analyzed system performance using Grafana and New Relic, identifying critical bottlenecks, improving observability coverage, and reducing incident troubleshooting time for backend services
  • •Led the development of a Transaction History API for the Affiliate Backoffice, improving transaction data accessibility, accelerating internal operational workflows, and reducing manual data retrieval efforts for support and finance teams.
  • •Contributed to the SSA (Seller-Affiliate System) by building backend services for commission calculation and payout workflows using gRPC, GraphQL, and REST APIs, enabling accurate transaction processing and supporting scalable affiliate operations
May 2020 - August 2022

Backend Developer

Mamikos

  • •Designed and built a scalable balance-based membership service, improving customer retention by 30% through optimized account and balance management.
  • •Migrated payment processing to an internal backend service, reducing external dependencies while improving transaction efficiency by 15%, reliability, and operational performance.
  • •Built an automated bulk advertisement allocation system that optimized campaign distribution, increased ad placement efficiency by 10%, and improved monetization opportunities
November 2012 - May 2020

Programmer

PT Ansvia

  • •Led development of an Enterprise Social Network (ESN) platform, improving user engagement and system reliability.
  • •Translated business requirements into scalable system designs and led a team to deliver production-ready solutions.
  • •Improved query performance of a high-traffic system by 600%, significantly enhancing data processing efficiency.
  • •Architected and maintained robust backend services and administrative systems, supporting both web and mobile application functionalities.
  • •Guided the transition to Scala-based systems, providing technical direction for a complex platform migration and modernization project to enhance overall capabilities.
  • •Optimized video processing and rendering using FFmpeg, reducing file sizes while maintaining quality and improving user retention by approximately 35%
2009-2013

Bachelor Degree

STMIK Amikom Yogyakarta

Let's Work Together

Have a project in mind? I'm always open to discussing new opportunities and solving complex business.

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Contact Information

Location
Semarang, ID

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Available for Freelance -- Fulltime

I'm currently available for freelance projects, Fulltime work and consulting work.

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