M Zulfa Achsani
Software Engineer · Amsterdam · Open to conversations

M Zulfa
Achsani.

Backend, data & ML engineer building the systems behind search, ranking, and recommendations at scale. Currently at Marktplaats (Adevinta) in Amsterdam. On the side, building Enclava, a SaaS platform for SMB operations.

Scroll
01

About

Ten-plus years across backend engineering, data infrastructure, and machine-learning systems.

Today I work on search and advertising at Marktplaats (Adevinta), on platforms used by millions of people across the Netherlands. Before that I led ML engineering at Traveloka, building model-deployment and experimentation platforms for their flights, hotels, and food products.

I care about the layer beneath the product: reliable data pipelines, ranking systems, and the infrastructure that keeps ML dependable in production. Lately I'm building Enclava, a multi-tenant SaaS platform that turns the WhatsApp-and-spreadsheet chaos of service & delivery SMBs into a disciplined quote → work → invoice → payment flow. I build it end-to-end with an AI-assisted workflow (Claude and OpenAI Codex) and run its day-to-day operations on a coordinated team of AI agents.

02

Experience

Mar 2022 – Present
Now
Amsterdam

Senior Software Engineer

Marktplaats (Adevinta)
  • Develop and maintain the search engine powering Marktplaats's advertising platform, used by millions across the Netherlands
  • Improve recommendation quality and relevance for cost-per-click advertising
  • Built and maintain a daily value-based pricing pipeline using an auction pricing model
  • Domain owner for search-performance data in Databricks, covering billions of impression, click & clickout events, with full responsibility for quality, governance & access across teams
Jul 2021 – Feb 2022
Jakarta

Engineering Lead

Traveloka
  • Led a team of 5 engineers delivering ML infrastructure and experimentation capabilities
  • Productionized ML models for recommendation & ranking across Flights, Hotels, Eats & Experience
  • Drove adoption of an in-house ML deployment platform on GCP, Kubernetes & Go, cutting model release cycle time
  • Owned the internal A/B testing & Multi-Armed Bandit experimentation platform used across product and ML teams
Jan 2019 – Jul 2021
Jakarta

Senior Software Engineer

Traveloka
  • Built the Customer Data Platform, serving user data reliably across product teams
  • Owned data governance across the platform: access, ownership & quality standards
  • Built a persistent event-logging system with Python, Pub/Sub & Dataflow to process user events at scale
Oct 2016 – Dec 2018
Jakarta

Software Engineer

Tokopedia
  • Developed & optimized the ads search engine in Go, improving query performance and relevance
  • Managed and scaled an Elasticsearch cluster on Alibaba Cloud
  • Built an Elasticsearch synonym-search plugin and led a keyword-based ads-targeting project
  • Partnered with data science to build a personalized ad recommendation system
Dec 2015 – Sep 2016
Jakarta

Application Developer

Carsurin
  • Built an internal project-management application for day-to-day operations
  • Developed a report integration with the Ministry of Trade's importer platform
  • Built an internal purchasing application and managed on-premises MySQL databases
03

Side Projects

Enclava logo

Enclava

 Multi-tenant SaaS
In Progress

A multi-tenant SaaS platform that contains the operational chaos of service & delivery SMBs like cleaning, trades, catering, and food delivery. Messages across WhatsApp, Instagram, and email become structured quote requests, and accepted quotes flow straight through to work, invoicing, and payment. EU-built and GDPR-by-design, serving Indonesia, the Gulf, and Europe.

  • Product-led and self-serve: flat-rate monthly subscription, unlimited users, and published pricing, with no per-seat fees and no sales calls
  • Quote-first by design, so no work exists without an accepted quote, and every tenant is isolated at the database level
  • Built independently, end-to-end, with an AI-assisted workflow (Claude & OpenAI Codex)
  • Run as a self-funded, part-time solo operation, with routine operations handled by a coordinated team of AI agents, all founder-reviewed
Self-serve SaaS Quote-first GDPR-by-design AI-assisted ops
Visit enclava.io ↗
04

Skills & Tools

Backend
PythonGoJavaElasticsearch
Machine Learning
ML SystemsKubeflowRanking & Recsys
Data
DatabricksAirflowClickHousePub/SubDataflow
Infrastructure
KubernetesGCPAWS
05

Education & Languages

2016 – 2018
Bachelor Degree, Information System
Binus University, Jakarta
2012 – 2015
Associate Degree, Information Management System
Bogor Agricultural University
IndonesianNative
EnglishProfessional
DutchBasic
06

Recognition & Volunteering

2021
ML & Cloud Computing Mentor / Instructor
Google Bangkit Academy (feat. Ministry of Education) · Jakarta
2020
Machine Learning Instructor
Google Bangkit Academy · Jakarta
2019
Best Quality Bug Report & Best Team Award
Testathon World Tour & Facebook · Jakarta
2017
Android Facilitator
Google Developers Kejar · Jakarta
2014
Van Deventer Maas Stichting Scholarship
Bogor
Contact

Let's build
something.

Emailzulfa.achsani@gmail.com LinkedIn/in/m-zulfa-achsani GitHub@misterciput