Company profile

proSapient Tech Stack

Expert network and primary research platform for consultancies and investors

Information Services London, England 201–500 employees Founded 2017 Privately Held

proSapient runs an expert network and survey research business on an Elixir/Phoenix core with Python, Kafka and Elasticsearch, plus an LLM layer (OpenAI, Gemini, GraphRAG, LangSmith, PromptLayer) that points to AI-driven expert matching and knowledge retrieval. Hiring is accelerating and skews junior, concentrated in support and sales, which signals a scale-up of client-servicing capacity alongside a push into private equity and quantitative survey work.

Tech Stack 29 technologies

Core StackMonday.com Elixir Python PostgreSQL Kafka Elasticsearch FastAPI Django Pandas RabbitMQ AWS Kubernetes Terraform GitLab Datadog OpenAI BigQuery Tableau Qualtrics Phoenix Absinthe Oban LangSmith PromptLayer spaCy GCP Gemini GraphRAG Notion

What proSapient Is BuildingChallenges and projects from their job posts

◆Challenges

Expanding the private equity client base
Scaling high-volume client services operations
Meeting high client expectations
Maintaining high standards across compliance
Scaling talent function for high-volume hiring

▲Active Projects

Quantitative, panel-only and full-service survey engagements
Late-day project launches for Eastern Time clients
Large-scale hiring initiatives
Proactive university relationship strategy
Recruitment innovation projects

Hiring Activity

Accelerating15 roles · 10 in 30d

Department

Support

Sales

Clientservices

Research

Seniority

Junior

Manager

Mid

Intern

Lead

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About proSapient

proSapient is a London-headquartered expert network and primary research company founded in 2017. It connects clients, chiefly consultancies and private equity firms, with industry experts through short calls, online surveys and longer-term engagements. The company employs 201–500 people and operates from London, Lisbon, Raleigh and Toronto, with current hiring in the United Kingdom, Portugal and Canada. It holds ISO 27001 accreditation and offers both panel-only and full-service survey engagements.

HeadquartersLondon, England

Company Size201–500 employees

Founded2017

Hiring MarketsUnited Kingdom, Portugal, Canada

Frequently Asked Questions

What tech stack does proSapient use?

proSapient builds on Elixir, Phoenix, Absinthe and Oban, with Python (FastAPI, Django), PostgreSQL, Kafka and Elasticsearch, running on AWS and GCP with Kubernetes, Terraform, GitLab and Datadog.

Does proSapient use AI or LLMs?

Yes. Its stack includes OpenAI, Gemini, GraphRAG, LangSmith, PromptLayer and spaCy, indicating LLM-based search and knowledge retrieval within the expert platform.

Where is proSapient hiring?

proSapient is hiring in the United Kingdom, Portugal and Canada, mostly junior roles in support and sales, with additional HR, client services and research openings.

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How this profile is built

proSapient's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.