Full-Stack Development Technical Leadership CTO
Aktualisiert am 24.02.2026
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 02.03.2026
Verfügbar zu: 50%
davon vor Ort: 100%
javascript
Flutter
iOS

Einsatzorte

Einsatzorte

Deutschland, Schweiz
möglich

Projekte

Projekte

11 Monate
2024-11 - 2025-09

Developement scoring algorithms and benchmarks

Co-Founder, CTO
Co-Founder, CTO

  • Built AI Hiring Agents that processed 60M+ rows and returned top 5 results in 15 seconds, cutting sourcing time by 90%.
  • Developed scoring algorithms and benchmarks, achieving a 73% F1-score, improving match accuracy by 23%.
  • Led architecture across frontend, backend, infrastructure, and data pipelines, scaling to handle 10x growth with 99.9% uptime.
  • Hired and managed a 7-member tech team (2 Frontend, 2 Full-Stack, 1 Backend, 2 QA).

on request
München, Germany
13 Jahre 3 Monate
2011-01 - 2024-03

Increased validated experimental features

Engineering Manager
Engineering Manager

  • Increased validated experimental features from 1 to 4 per quarter (+300%), boosting data-driven product decisions in 6 months.
  • Decoupled and scaled microservices serving millions of MAUs at ~100k RPM, reducing downtime risks.
  • Achieved 100% promotion success rate for engineers identified as promotion-ready, despite limited promotion slots.
  • Grew team from 2 to 12 cross-functional engineers in 2 years, scaling organizational capacity by 6x.
  • Maintained 100% team engagement in surveys and achieved the #2 highest office vibe rating within OLX Europe. 

OLX
Berlin, Germany
9 Jahre 10 Monate
2011-01 - 2020-10

Delivered on-time rebrands for iOS apps

Senior Android Developer
Senior Android Developer

  • Delivered on-time rebrands for iOS apps in 7 countries, a company first. Led iOS rebranding with a 5-person team, 30% smaller than initial plan.
  • Cut Android CI/CD build times from 60 to 20 minutes (-67%) and migrated 100% of releases to GitLab within 2 quarters.
  • Unified Android & iOS architectures to MVVM in <6 months.
  • Proposed and prototyped Flutter adoption; became the company?s mobile strategy 4 years later.
  • Started the proposal to adopt of Flutter with prototypes and proof, after ~4 years was the main strategy for mobile from the CTO.
  • Reduced infra costs by tens of thousands annually through unused infra cleanups.
  • Built observability dashboards covering 100% of release metrics, enabling 30% faster incident resolution.

OLX Group GmbH
Berlin, Germany
2 Jahre 3 Monate
2015-08 - 2017-10

Android/iOS; raised iOS app

Tech Lead for Mobile
Tech Lead for Mobile

  • Led Android/iOS; raised iOS app ratings from 1 to 4+ in 6 months.
  • Launched ?mutual rating? feature in 3 months, a most requested feature from customers

OLX Philippines
Pasig, Philippines
3 Jahre 9 Monate
2011-11 - 2015-07

Delivered apps for major clients

Lead Software Engineer
Lead Software Engineer

  • Delivered apps for major clients (NFL Mobile, Funimation, HSN Mobile, TCM) as team lead for 6 developers + 1 QA
  • Introduced CI/CD automation by setting up Jenkins build server, reducing manual integration errors

Stratpoint Technologies
Mandaluyong, Philippines

Aus- und Weiterbildung

Aus- und Weiterbildung

3 Jahre 4 Monate
2014-08 - 2017-11

Computer Science

Masters of Science, University of the Philippines Diliman, Quezon City, Philippines
Masters of Science
University of the Philippines Diliman, Quezon City, Philippines


5 Jahre 6 Monate
2012-05 - 2017-10

Computer Engineering

Bachelors of Science, University of the Philippines Diliman, Quezon City, Philippines
Bachelors of Science
University of the Philippines Diliman, Quezon City, Philippines

Kompetenzen

Kompetenzen

Top-Skills

javascript Flutter iOS

Produkte / Standards / Erfahrungen / Methoden

Profile

Technical Leader with 13+ years of experience in managing and leading software engineering teams. Expertise in B2B SaaS, data science, and people management. Skilled in hiring, evaluation, mentoring, and coaching of software engineers.


Skills

  • Management - hiring, performance management, strategy
  • Backend - Python, PHP, Javascript
  • Infra - AWS, GCP, NewRelic, Kubernetes
  • Frontend - React, iOS, Android, Flutter
  • AI - LLMs, classifiers, regressors

Einsatzorte

Einsatzorte

Deutschland, Schweiz
möglich

Projekte

Projekte

11 Monate
2024-11 - 2025-09

Developement scoring algorithms and benchmarks

Co-Founder, CTO
Co-Founder, CTO

  • Built AI Hiring Agents that processed 60M+ rows and returned top 5 results in 15 seconds, cutting sourcing time by 90%.
  • Developed scoring algorithms and benchmarks, achieving a 73% F1-score, improving match accuracy by 23%.
  • Led architecture across frontend, backend, infrastructure, and data pipelines, scaling to handle 10x growth with 99.9% uptime.
  • Hired and managed a 7-member tech team (2 Frontend, 2 Full-Stack, 1 Backend, 2 QA).

on request
München, Germany
13 Jahre 3 Monate
2011-01 - 2024-03

Increased validated experimental features

Engineering Manager
Engineering Manager

  • Increased validated experimental features from 1 to 4 per quarter (+300%), boosting data-driven product decisions in 6 months.
  • Decoupled and scaled microservices serving millions of MAUs at ~100k RPM, reducing downtime risks.
  • Achieved 100% promotion success rate for engineers identified as promotion-ready, despite limited promotion slots.
  • Grew team from 2 to 12 cross-functional engineers in 2 years, scaling organizational capacity by 6x.
  • Maintained 100% team engagement in surveys and achieved the #2 highest office vibe rating within OLX Europe. 

OLX
Berlin, Germany
9 Jahre 10 Monate
2011-01 - 2020-10

Delivered on-time rebrands for iOS apps

Senior Android Developer
Senior Android Developer

  • Delivered on-time rebrands for iOS apps in 7 countries, a company first. Led iOS rebranding with a 5-person team, 30% smaller than initial plan.
  • Cut Android CI/CD build times from 60 to 20 minutes (-67%) and migrated 100% of releases to GitLab within 2 quarters.
  • Unified Android & iOS architectures to MVVM in <6 months.
  • Proposed and prototyped Flutter adoption; became the company?s mobile strategy 4 years later.
  • Started the proposal to adopt of Flutter with prototypes and proof, after ~4 years was the main strategy for mobile from the CTO.
  • Reduced infra costs by tens of thousands annually through unused infra cleanups.
  • Built observability dashboards covering 100% of release metrics, enabling 30% faster incident resolution.

OLX Group GmbH
Berlin, Germany
2 Jahre 3 Monate
2015-08 - 2017-10

Android/iOS; raised iOS app

Tech Lead for Mobile
Tech Lead for Mobile

  • Led Android/iOS; raised iOS app ratings from 1 to 4+ in 6 months.
  • Launched ?mutual rating? feature in 3 months, a most requested feature from customers

OLX Philippines
Pasig, Philippines
3 Jahre 9 Monate
2011-11 - 2015-07

Delivered apps for major clients

Lead Software Engineer
Lead Software Engineer

  • Delivered apps for major clients (NFL Mobile, Funimation, HSN Mobile, TCM) as team lead for 6 developers + 1 QA
  • Introduced CI/CD automation by setting up Jenkins build server, reducing manual integration errors

Stratpoint Technologies
Mandaluyong, Philippines

Aus- und Weiterbildung

Aus- und Weiterbildung

3 Jahre 4 Monate
2014-08 - 2017-11

Computer Science

Masters of Science, University of the Philippines Diliman, Quezon City, Philippines
Masters of Science
University of the Philippines Diliman, Quezon City, Philippines


5 Jahre 6 Monate
2012-05 - 2017-10

Computer Engineering

Bachelors of Science, University of the Philippines Diliman, Quezon City, Philippines
Bachelors of Science
University of the Philippines Diliman, Quezon City, Philippines

Kompetenzen

Kompetenzen

Top-Skills

javascript Flutter iOS

Produkte / Standards / Erfahrungen / Methoden

Profile

Technical Leader with 13+ years of experience in managing and leading software engineering teams. Expertise in B2B SaaS, data science, and people management. Skilled in hiring, evaluation, mentoring, and coaching of software engineers.


Skills

  • Management - hiring, performance management, strategy
  • Backend - Python, PHP, Javascript
  • Infra - AWS, GCP, NewRelic, Kubernetes
  • Frontend - React, iOS, Android, Flutter
  • AI - LLMs, classifiers, regressors

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