28Stone Tech Stack

Financial software consulting with capital markets and trading systems expertise

IT Services and IT Consulting New York, New York 201–500 employees Founded 2011 Privately Held

28Stone builds financial applications for tier-1 institutions, with a tech stack anchored in Python, React, GraphQL, and OpenFin—tools optimized for capital markets workflows. Current project focus spans MDM integration, data governance (Databricks medallion architecture), and security dashboards, while pain points cluster around risk reduction, data integrity, and compliance—suggesting clients are wrestling with legacy system consolidation and regulatory pressure rather than greenfield innovation.

Tech Stack 71 technologies

Core StackPython Databricks GraphQL JavaScript React Node.js Angular webpack Jira Confluence GitHub Bitbucket Okta HTML CSS SASS LESS OpenFin ag-Grid PrimeNG yarn npm Nexus Babel Git OAuth 2.0 LDAP Socket.IO SAST DAST+41 more

What 28Stone Is Building

◆Challenges

Reducing risk, cost, and time to market
Reducing risk
Reducing cost
System risk reduction
Application vulnerability remediation
Security governance alignment
Production data issues
Trade data discrepancies
Data integrity across systems

▲Active Projects

End-to-end solution interfacing with mdm systems
Graphql apis for master data exposure
Databricks and medallion architecture
Security and compliance dashboards
Cross-functional remediation working sessions
Internal system integration solutions

Hiring Activity

Decelerating15 roles · 4 in 30d

Department

Engineering

11

Ops

1

Product

1

Security

1

Seniority

Mid

6

Senior

6

Lead

2

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About 28Stone

28Stone is a financial software consulting firm founded in 2011, headquartered in New York and operating across 201–500 employees. The company partners with leading financial institutions to design and build applications in capital markets, trading systems, and fintech, emphasizing upfront business discovery over prescriptive recommendations. Current work includes end-to-end MDM interfacing, GraphQL APIs for master data exposure, security and compliance dashboards, and production data remediation—indicating a client base managing complex legacy integrations and governance challenges.

HeadquartersNew York, New York

Company Size201–500 employees

Founded2011

Hiring MarketsUnited States, Latvia, Portugal, Poland

Frequently Asked Questions

What tech stack does 28Stone use?

Python, React, GraphQL, Node.js, OpenFin, Angular, ag-Grid, Databricks, Jira, GitHub, and Okta. Stack reflects capital markets and frontend-heavy financial application development.

Where is 28Stone hiring?

United States, Latvia, Portugal, and Poland. 16 active roles with engineering (11), product (1), ops (1), and security (1) positions; mostly mid and senior engineers.

What is 28Stone working on?

MDM system integration, GraphQL APIs for data exposure, Databricks medallion architecture, security/compliance dashboards, and trade data reconciliation for financial institutions.