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Markos Nikolaos O.
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Markos Nikolaos O.

Search Expert | Elastic & Open Search, Semantic, Vector, Relevance

I’m Nico and here’s what you need to know: I’m a software developer with over 10 years of experience, specializing in search and RAG (Retrieval-Augmented Generation) applications. Right now, I’m actively building both advanced search solutions and RAG systems that combine LLMs with Elasticsearch and Opensearch. I’ve worked on some of the biggest online shops in Germany, where I developed and optimized complex search solutions. I have deep experience designing semantic searches that understand intent and meaning, not just keywords. I’m also the creator of a SaaS Search application based on Elasticsearch, which has been running strong for the past few years. For the last 4 years I’ve been helping companies in the US, Germany, Austria, and Switzerland build and improve their search solutions. I can adapt to whatever your project needs, but I have the most experience with these tools: ReactJS, VueJs, PHP, Python, Tailwind, Laravel, Statamic, Elasticsearch, Opensearch, AWS, Google Cloud, and Linux. I don’t know the specifics of your project yet, but I’ll give my best to deliver results you’re happy with.

🇩🇪Dortmund, Germany$70/hr100% JSS5.00 (8)Since Oct 2018

Earnings and projects

MRR
$2.4k

Last 6 months ÷ 6

World#17,357 / 412k
🇩🇪Country#127 / 3,842
Revenue, last 30 days
$5.1k

Last 6 months: $15k

World#5,413 / 412k
🇩🇪Country#43 / 3,842
Total earnings
$59k

Billed in all: $63k

World#66,624 / 412k
🇩🇪Country#449 / 3,842
Per project
$4.5k

$7.3k in the last 6 months

World#38,478 / 412k
🇩🇪Country#225 / 3,842
Projects, last 6 months
2
0% fixed100% hourly
World#88,918 / 412k
🇩🇪Country#715 / 3,842
Projects in all
13

Across 14 contracts

0% fixed100% hourly
World#175,712 / 412k
🇩🇪Country#1,505 / 3,842

Earnings, last 30 days

$62.7k+$5.1k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$55k$60k$65kOct 8Oct 23Nov 7

Skill rankings: #1 in 1 skill of 10

Rarest: top 4% in Statamic CMS, of 27. Ranked by MRR among everyone on Upwork with the skill.

  1. 1Statamic CMS27 freelancers · 🇩🇪 #1Top 4%
  2. #6OpenAI Embeddings106 freelancers · 🇩🇪 #1Top 6%
  3. #8ELK Stack131 freelancers · 🇩🇪 #1Top 6%
  4. #79Elasticsearch946 freelancers · 🇩🇪 #1Top 8%
  5. #544Vue.js8,267 freelancers · 🇩🇪 #3Top 7%
  6. #545Docker8,761 freelancers · 🇩🇪 #7Top 6%
  7. #611Laravel12,549 freelancers · 🇩🇪 #4Top 5%
  8. #694MySQL14,471 freelancers · 🇩🇪 #4Top 5%