ATG (Auction Technology Group) Tech Stack

Global auction marketplace operator across art, antiques, and industrial sectors

Software Development London, England 201–500 employees Public Company

ATG operates five major auction marketplaces (LiveAuctioneers, thesaleroom.com, lot-tissimo, Proxibid, BidSpotter) processing billions in transaction value across art, antiques, and industrial goods. The tech stack reveals a polyglot backend (Go, Python, FastAPI) paired with a modern mobile-first frontend (React Native, Swift, Kotlin), but hiring velocity and active projects signal operational strain: the organization is simultaneously modernizing backend services, implementing cloud security controls (CNAPP, service mesh), and scaling a compliance program across multiple regulatory frameworks—suggesting infrastructure and governance maturity lags business growth.

Tech Stack 63 technologies

Core StackGo Python AWS React Native Redux Jest TypeScript Tailwind CSS Swift Kotlin Snowflake Amplitude Salesforce Power BI React C# Elasticsearch FastAPI LinkedIn Recruiter Azure AWS WAF Expo React Navigation React Native Testing Library React Query OneStream NET Core OpenSearch Kibana Logstash+32 more

What ATG (Auction Technology Group) Is Building

◆Challenges

Scaling tech talent pipeline
Consolidating legacy platforms
Scaling backend services
Compliance obligations across multiple frameworks
Third-party vendor risk management
Business continuity planning
Misconfiguration detection
Compliance posture reporting
High transaction volume
Cost-to-serve pressure points

▲Active Projects

Talent pipeline development for tech roles
Backend platform modernization
Service mesh evolution
Grc program roadmap
Third-party vendor risk program
Business continuity planning program
Security monitoring and detection capability
Cnapp program implementation
Cloud security governance standards
Liveauctioneers shipping rollout

Hiring Activity

Accelerating10 roles · 10 in 30d

Department

Engineering

Finance

Security

Sales

Seniority

Senior

Manager

Mid

Staff

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About ATG (Auction Technology Group)

ATG is a London-listed marketplace operator connecting bidders in 160 countries to auctioneers in two verticals. The Art & Antiques division includes LiveAuctioneers (North America), thesaleroom.com (Europe), and lot-tissimo (Germany). The Industrial & Commercial division runs Proxibid (North America's largest industrial marketplace) and BidSpotter (global industrial auction leader). The company traces its roots to 1971 as a trade publisher and has expanded into software-driven marketplace operations with over 350 employees across the US, UK, and Germany. High transaction volumes and multi-geography compliance obligations drive infrastructure and security priorities.

HeadquartersLondon, England

Company Size201–500 employees

Hiring MarketsUnited States, Mexico

Frequently Asked Questions

What tech stack does ATG use?

Backend: Go, Python, FastAPI, C#/.NET Core, Elasticsearch/OpenSearch. Frontend: React, React Native, TypeScript, Tailwind CSS. Data: Snowflake, Amplitude. Infrastructure: AWS, Azure, AWS WAF.

What is ATG working on?

Backend platform modernization, service mesh evolution, cloud security governance (CNAPP, GRC program), third-party vendor risk management, business continuity planning, and a LiveAuctioneers shipping feature rollout.

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How this profile is built

ATG (Auction Technology Group)'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.