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Haystack Tech Stack

AI-powered tech recruiting platform connecting candidates with employers

Technology, Information and Internet Newcastle upon Tyne, England 51–200 employees Founded 2021 Privately Held

Haystack operates a tech recruiting platform that combines AI vetting with human expertise to match engineering and data talent to employers. The engineering-heavy hiring mix (51 roles across engineering and data combined) and active adoption of RAG and Azure Machine Learning suggest the platform is shifting toward AI-native candidate assessment and matching — moving beyond traditional screening into intelligent ranking and fit prediction.

Tech Stack 200 technologies

Core StackPython Tableau Docker Kubernetes AWS Terraform Ansible dbt Java C++ SageMaker TypeScript Node.js Jenkins Jira Confluence ServiceNow SAP S/4HANA Power BI SQL Server GitLab Azure Azure Machine Learning GCP XML Visual Studio Code CMake Microsoft Project SAP R/3 SAP Master Data Governance+170 more
AdoptingRAG C# PHP Azure CompTIA Security+

What Haystack Is Building

Challenges

  • Scaling ai systems
  • Quality issues in workflows
  • Optimising subscription billing
  • Digital modernization program
  • Master data standards
  • Complex regulatory environments
  • Implementing new enterprise data warehouse
  • Managing complex cyber security projects
  • Ensuring compliance and security
  • Mission-focused modernization across space-based geoint environments

Active Projects

  • Build central data platform
  • Enterprise-wide data quality and management
  • Optimise subscription billing
  • Build reports and dashboards to track kpis
  • Hr document creation solution
  • Equipment submittals review
  • Enterprise data warehouse project
  • Business integration programme
  • Market analysis for ai workloads and system-level trends
  • Ai-centric data center platforms and rack-level systems

Hiring Activity

Accelerating110 roles · 110 in 30d

Department

Engineering
51
Data
28
Product
14
Marketing
5
Finance
3
Security
2
HR
1
Ops
1

Seniority

Mid
52
Senior
28
Junior
22
Principal
2
Intern
1
Lead
1
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About Haystack

Haystack is a recruiting platform for technical talent, founded in 2021 and based in Newcastle upon Tyne. The platform serves over 400,000 tech candidates and over 100 employers ranging from early-stage startups to large enterprises. Candidates span software engineering, data, design, DevOps, cloud, tech management, testing, product, delivery, and architecture roles. Haystack operates across six countries (UK, US, Switzerland, Belgium, Germany, Austria) and is actively hiring across engineering, data, product, marketing, and finance functions.

HeadquartersNewcastle upon Tyne, England
Company Size51–200 employees
Founded2021
Hiring MarketsUnited Kingdom, United States, Switzerland, Belgium, Germany, Austria

Frequently Asked Questions

What is Haystack's tech stack?

Core infrastructure: Python, Docker, Kubernetes, AWS, Azure, GCP. Data layer: Kafka, dbt, SQL Server, Snowflake (implied via data warehouse projects), Tableau, Power BI. ML: SageMaker, Azure Machine Learning. DevOps: Terraform, Ansible, Jenkins. Actively adopting RAG and expanding Azure footprint.

What is Haystack working on?

Primary initiatives include building a central data platform, enterprise data warehouse implementation, data quality and master data management, and AI workload analysis. Secondary focus on subscription billing optimization, KPI dashboards, and HR document automation.

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How this profile is built

Haystack'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.