Flexspring Tech Stack

HR data integration and iPaaS consulting for mid-market enterprises

IT Services and IT Consulting Boston, MASSACHUSETTS 51–200 employees Founded 2013 Privately Held

Flexspring specializes in HR data integration—moving employee and payroll data between systems without manual re-entry. The stack reveals a deep Oracle/Workday/ADP focus (the big three in enterprise HR), supplemented by Java/Spring backend work and modern API tooling (GraphQL, REST). Hiring has accelerated across engineering and sales in the past 30 days, with projects split between proof-of-concept work and custom integrations, suggesting a transition from services-only toward productized offerings.

Tech Stack 35 technologies

Core StackWorkday ADP BambooHR Java GraphQL JavaScript Postman Salesforce Spring JUnit React C# Python Greenhouse SAP Oracle Zoom iPaaS Oracle HCM Cloud Taleo Groovy Insomnia Service Cloud JMS UKG Dayforce SOAP Salesforce Service Cloud Paylocity SFTP+5 more

What Flexspring Is Building

◆Challenges

Hr data integration challenges
Improving data accuracy
Streamlining operations
Integration pain point
Streamlining hr workflow
Back-office optimization
International expansion support
Operations efficiency
Payroll timing compliance
Streamlining hr payroll integration

▲Active Projects

Proof of concept demonstrations
Client solution development
Pipeline building for hr integration leads
Sow contract documentation
Custom hr, payroll, and financial system integrations
Integration roadmap alignment
Go-to-market initiatives
Customer success stories
Back-office optimization initiatives
International expansion initiatives

Hiring Activity

Accelerating15 roles · 15 in 30d

Department

Engineering

Sales

Ops

Support

Seniority

Mid

Senior

Intern

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About Flexspring

Flexspring is a 51–200-person integration consulting firm founded in 2013 and based in Boston. The company solves HR data integration—the operational friction of moving employee records, payroll changes, and benefit enrollment between disconnected systems. They work with mid-market and enterprise customers running Oracle HCM Cloud, Workday, ADP, BambooHR, Greenhouse, UKG, and Dayforce. Core service lines include data migrations, ongoing integration hosting, and custom integrations spanning HR, payroll, and financial systems. Recent project activity points toward go-to-market expansion and international scaling.

HeadquartersBoston, MASSACHUSETTS

Company Size51–200 employees

Founded2013

Hiring MarketsCanada

Frequently Asked Questions

What is Flexspring's tech stack?

Java, Spring, Groovy, GraphQL, and JavaScript for custom development; iPaaS for integration hosting; deep connectors to Oracle HCM Cloud, Workday, ADP, BambooHR, Greenhouse, UKG, and Dayforce; Salesforce Service Cloud for customer-facing tools.

What does Flexspring do?

Flexspring eliminates manual data entry in HR systems by building and hosting integrations between HR platforms (Workday, ADP, Oracle HCM, Greenhouse) and payroll, financial, and benefits systems. They handle migrations, ongoing integration, and custom connector development.

How this profile is built

Flexspring'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.