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Backend engineer with 7+ years across startups, telco, and unicorn-scale platforms (Traveloka, Flip). Built and operated distributed services handling millions of daily transactions for 10M+ users at 98% SLO uptime, with a repeated track record of cutting operating costs 60-70%. Deep experience integrating secure payment gateways and processing digital goods through third-party biller integrations - the same transaction muscle an esports tournament platform needs for entry, matchmaking, and prize distribution. Comfortable across the full stack, from Go/Java microservices and event-driven pipelines to React/TypeScript frontends. M.Sc. in Computer Science. Available for part-time, fully remote contract work.…Backend engineer with 7+ years across startups, telco, and unicorn-scale platforms (Traveloka, Flip). Built and operated distributed services handling millions of daily transactions for 10M+ users at 98% SLO uptime, with a repeated track record of cutting operating costs 60-70%. Deep experience integrating secure payment gateways and processing digital goods through third-party biller integrations - the same transaction muscle an esports tournament platform needs for entry, matchmaking, and prize distribution. Comfortable across the full stack, from Go/Java microservices and event-driven pipelines to React/TypeScript frontends. M.Sc. in Computer Science. Available for part-time, fully remote contract work.

Damar Pramuditya

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Backend engineer with 7+ years across startups, telco, and unicorn-scale platforms (Traveloka, Flip). Built and operated distributed services handling millions of daily transactions for 10M+ users at 98% SLO uptime, with a repeated track record of cutting operating costs 60-70%. Deep experience integrating secure payment gateways and processing digital goods through third-party biller integrations - the same transaction muscle an esports tournament platform needs for entry, matchmaking, and prize distribution. Comfortable across the full stack, from Go/Java microservices and event-driven pipelines to React/TypeScript frontends. M.Sc. in Computer Science. Available for part-time, fully remote contract work.…Backend engineer with 7+ years across startups, telco, and unicorn-scale platforms (Traveloka, Flip). Built and operated distributed services handling millions of daily transactions for 10M+ users at 98% SLO uptime, with a repeated track record of cutting operating costs 60-70%. Deep experience integrating secure payment gateways and processing digital goods through third-party biller integrations - the same transaction muscle an esports tournament platform needs for entry, matchmaking, and prize distribution. Comfortable across the full stack, from Go/Java microservices and event-driven pipelines to React/TypeScript frontends. M.Sc. in Computer Science. Available for part-time, fully remote contract work.

Available to hire

Backend engineer with 7+ years across startups, telco, and unicorn-scale platforms (Traveloka, Flip). Built and operated distributed
services handling millions of daily transactions for 10M+ users at 98% SLO uptime, with a repeated track record of cutting operating
costs 60-70%. Deep experience integrating secure payment gateways and processing digital goods through third-party biller
integrations - the same transaction muscle an esports tournament platform needs for entry, matchmaking, and prize distribution.
Comfortable across the full stack, from Go/Java microservices and event-driven pipelines to React/TypeScript frontends. M.Sc. in
Computer Science. Available for part-time, fully remote contract work.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

Aragonese

Advanced

Javanese

Advanced

Work Experience

Ful lsta ck E n g in eer (Con tra ct, Rem ote ) at Clo udet s

January 1, 2026 - June 1, 2026

Built menu synchronization with third-party delivery partners (Grab, Gojek, Foodpanda), including generic provider fields and retro/migration scripts to backfill existing data. Raised backend unit-test coverage with MapStruct mapper verification tests across the menu, inventory, and kitchen APIs. Authored Liquibase database migrations and standardized migration conventions across services. Stack: Java 17, Spring Boot, Kafka, MySQL; React 18, TypeScript, React Query.

Softw are E n g in eer at Ja ka rta , In d onesi a (Re m ote )

January 1, 2025 - Present

Dia g no se d a n d f ix e d a d ata b ase CPU bottl e n eck in t h e r e con cilia tio n c onsu mer work e r, root-c a us in g a m issi ng in d ex on reference_id t h at tr ig g e r e d d aily full-ta b le scans across millions of transactio ns. D esig n e d a n d b uilt t h e Saf araya visa/travel registration service from scra tch— a Go 1.24 microservice on Clean Architecture w ith vertica l s lice pattern (53 files in registration domain), integrating document uploads, payments, and Pub/Sub notifications end-to-end. Built query_id order tracking infrastructure for digital products, designed a dynamic insurance recommendation system evaluating DB-centric, cache-centric, and hybrid approaches, expanded test coverage toward 95%+ via unit/integration and token/device code paths, and owned digital goods transaction processing across multiple biller integrations serving 10M+ users at 98% SLO.

Softw are E n g in eer at Trave lo ka

September 1, 2021 - December 1, 2024

Led cost-reduction initiatives cutting monthly logging costs by 70% and data-tracking costs by 60% through instrumentation and pipeline optimization. Revamped the B2B API to improve partner integration and usability, including refactoring and performance improvements. Developed an SLO dashboard for system performance monitoring and built an internal distributed system handling thousands of inputs efficiently. Stack: Python, Java, Terraform, AWS, GitLab.

Full Stack Engineer / Lead Engineer at —

March 1, 2020 - August 1, 2021

Lead engineer building internal tools from scratch, pivoting between frontend and backend to ship end-to-end functionality; handled project management responsibilities and coordination across teams and stakeholders for delivery.

Ful lsta ck E n g in eer at Ericsson

March 1, 2020 - August 1, 2021

Built internal tools from scratch, pivoting between frontend and backend to ship end-to-end functionality. Took on project-management responsibilities, coordinating between teams and stakeholders to deliver projects. Stack: Python, Node.js, React.js, Microsoft Azure.