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Tesonet Tech Stack

Venture builder and investor backing portfolio companies across cybersecurity, hosting, and AI

Technology, Information and Internet Vilnius, Vilniaus 1,001–5,000 employees Founded 2008 Privately Held

Tesonet is a Baltic venture builder and investor with a portfolio spanning cybersecurity (Nord Security/Surfshark), web intelligence (Oxylabs), hosting (Hostinger), and AI orchestration (nexos.ai). The tech stack reveals dual operating modes: backend services run on PHP, Go, Node.js, and Kafka with Docker/Kubernetes, while AI-focused work layers in LiteLLM, Langchain, and multi-model inference (OpenAI, Anthropic, Gemini, TensorFlow, PyTorch). Active projects span greenfield AI products, real-time data pipelines, and creator GTM strategy — consistent with a portfolio company supporting and scaling model.

Tech Stack 52 technologies

Core StackPHP Go Node.js MySQL Redis Docker Kubernetes Kafka GitLab CI/CD TypeScript React Python Apache Airflow BigQuery dbt TensorFlow PyTorch scikit-learn Langchain OpenAI Anthropic Dagster Symfony LinkedIn YouTube Substack Keras LiteLLM Gemini Git+22 more

What Tesonet Is Building

◆Challenges

Scaling go-to-market efforts
Customer churn
Delinquent accounts
Blazing-fast web pages
Real-time data processing
Large-scale distributed systems
Accurate up-to-date scorecards
Data pipeline reliability
Inventory data accuracy
Scaling advertising spend while maintaining cpas

▲Active Projects

Greenfield ai-driven product
Creators’ gtm strategy
Global influencer/creator marketing initiatives
End-to-end campaign management process
Ai-based application
Real-time data processing pipelines
Large-scale data ingestion
Mission-critical data infrastructure
Core architecture design
Blazing-fast web pages framework

Hiring Activity

Decelerating15 roles · 2 in 30d

Department

Engineering

7

Marketing

2

Product

2

Data

1

Sales

1

Seniority

Senior

10

Manager

2

Lead

1

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About Tesonet

Tesonet operates as a venture builder and investor, providing capital, operational expertise, and scaling support to early-stage and growth-stage companies in technology sectors. Founded in 2008 and based in Vilnius, Lithuania, the firm manages a portfolio of eight publicly recognized companies across cybersecurity, hosting, web intelligence, and AI. The organization spans 1,001–5,000 employees across portfolio entities. Hiring remains concentrated in Lithuania, with active roles skewed toward engineering (7 positions) and senior-level talent, reflecting an engineering-heavy operational culture.

HeadquartersVilnius, Vilniaus

Company Size1,001–5,000 employees

Founded2008

Hiring MarketsLithuania

Frequently Asked Questions

What is Tesonet's tech stack?

Backend: PHP, Symfony, Go, Node.js, MySQL, Redis, Docker, Kubernetes, Kafka. Data: Apache Airflow, BigQuery, dbt. ML/AI: TensorFlow, PyTorch, Keras, scikit-learn, LiteLLM, Langchain, OpenAI, Anthropic, Gemini. Frontend: TypeScript, React. CI/CD: GitLab.