Stack Builders Tech Stack

Custom software shop specializing in functional programming and type-safe languages

Software Development Rochester, New York 51–200 employees Founded 2009 Privately Held

Stack Builders is a 51–200-person custom software firm founded in 2009, headquartered in Rochester, New York. The tech stack reveals a polyglot engineering culture—Haskell, PureScript, Elm, and TypeScript dominate alongside Ruby on Rails and React—suggesting deep investment in type safety and functional paradigms rather than commodity web stacks. Active hiring skews heavily toward senior engineers (12 of 19 engineering roles) distributed across seven countries, indicating a scaling custom-services model leaning on experienced practitioners rather than junior builders.

Tech Stack 55 technologies

Core StackAWS Docker Python Ruby Linux TypeScript JavaScript Ruby on Rails Kubernetes React GitHub Copilot Cursor Jira HubSpot Salesforce Apollo.io Zoom Flutter GitHub GitLab Azure GCP Perl Git Haskell Claude ChatGPT Adobe Experience Manager Google Meet Dart+23 more

What Stack Builders Is Building

◆Challenges

Prototype to production
Ai-assisted development
Scalable saas systems
Heavy background data processing
Work permit sponsorship limitation
Scalable saas system development
Automated risk analysis tools
Expanding client portfolio
Creating scalable processes
Inefficiencies in tech stacks

▲Active Projects

Build a production system based on an existing react prototype
Risk scoring and analysis logic
Build frontend interfaces for an automated security operations (soc) platform
Interactive data visualizations
Integrate backend services handling telemetry and analytics
Website delivery pod
Client brand awareness website project
Next growth phase foundation
Client portfolio expansion

Hiring Activity

Steady25 roles · 9 in 30d

Department

Engineering

Product

Sales

Ops

Seniority

Senior

Mid

Junior

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About Stack Builders

Stack Builders delivers bespoke software for mid-market and enterprise clients, emphasizing functional programming languages (Haskell, PureScript, Elm) and type-safe approaches alongside mainstream technologies. The company operates on an Agile, collaborative engagement model where clients stay involved in decision-making. Recent project activity spans prototype-to-production transitions, security operations platforms, data visualization, and SaaS foundations, suggesting work across financial services, security, and data-heavy verticals. Sales and ops footprints remain small relative to engineering, consistent with a services-led business.

HeadquartersRochester, New York

Company Size51–200 employees

Founded2009

Hiring MarketsEcuador, Spain, Brazil, Colombia, Argentina, United States, Costa Rica

Frequently Asked Questions

What programming languages does Stack Builders use?

Haskell, PureScript, Elm, TypeScript, JavaScript, Ruby, Swift, and Python. The stack emphasizes type-safe and functional languages alongside conventional web frameworks like Ruby on Rails and React.

Where does Stack Builders hire engineers?

Ecuador, Spain, Brazil, Colombia, Argentina, Costa Rica, and the United States. The company has 17 active engineering roles with a focus on senior-level positions across these regions.

What does Stack Builders currently build?

Recent projects include prototype-to-production transitions, security operations platforms, risk scoring systems, data visualization tools, SaaS foundations, and client portfolio expansion work.