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ProvenExpert Tech Stack

Review collection and reputation management platform for service professionals

Technology, Information and Internet Berlin 51–200 employees Founded 2011 Public Company

ProvenExpert operates a review aggregation and management platform focused on small-to-medium businesses and service professionals in Europe. The tech stack reveals a modern, polyglot backend (NestJS + Node.js + Symfony + Go + Python + Rust) paired with React on frontend, containerized via Kubernetes — suggesting an engineering org scaling to handle distributed review ingestion, aggregation, and display at volume. Current hiring momentum is concentrated in marketing (3 roles) and support (2 roles) against minimal engineering headcount, a pattern consistent with their project focus on international expansion and social-media channel management rather than product rewrites.

Tech Stack 34 technologies

Core StackNestJS Node.js TypeScript React Kubernetes AWS PostgreSQL MongoDB Bitbucket HubSpot SendGrid Kafka RabbitMQ Go Python Rust TypeORM Apollo REST API OVH GCP Keycloak Git bash zsh Symfony Meta Google LinkedIn YouTube+2 more

What ProvenExpert Is Building

◆Challenges

Acquiring new target groups
Expanding into new markets
Increasing social media reach
Strengthening online reputation
Customer churn reduction
Customer onboarding process
Cross-border growth
International expansion
Reducing churn

▲Active Projects

Testing new advertising platforms
International expansion projects
Scalable backend services
React frontend optimization
Kubernetes production deployment
Social media channel management
Content format development
Content performance analysis
New market entry

Hiring Activity

Accelerating10 roles · 5 in 30d

Department

Marketing

3

Support

2

Engineering

1

Sales

1

Seniority

Mid

5

Manager

2

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About ProvenExpert

ProvenExpert helps service businesses and professionals collect, display, and leverage customer reviews to build trust and drive sales. The platform supports multiple collection methods (email invites, QR codes, social sharing) and aggregates ratings from third-party platforms like Google, Facebook, and industry-specific review sites. Customers embed a branded rating seal on their websites and ProvenExpert profile to surface social proof to potential clients. Founded in 2011 and headquartered in Berlin, the company operates across Europe with current hiring concentrated in the German market. Active projects span backend scalability, frontend optimization, and expansion into new advertising channels and geographic markets.

HeadquartersBerlin

Company Size51–200 employees

Founded2011

Hiring MarketsGermany

Frequently Asked Questions

What tech stack does ProvenExpert use?

Backend: NestJS, Node.js, TypeScript, Symfony, Go, Python, Rust. Frontend: React with Apollo. Data: PostgreSQL, MongoDB, Kafka, RabbitMQ. Infrastructure: Kubernetes, AWS, GCP, OVH.