Fullstack Developer - JS/TS

Banyan Software provides the best permanent home for successful enterprise software companies, their employees, and customers. We are on a mission to acquire, build and grow great enterprise software businesses all over the world that have dominant positions in niche vertical markets. In recent years, Banyan was named the #1 fastest-growing private software company in the US on the Inc. 5000 and amongst the top 10 fastest-growing companies by the Deloitte Technology Fast 500. Founded in 2016 with a permanent capital base setup to preserve the legacy of founders, Banyan focuses on a buy and hold for life strategy for growing software companies that serve specialized vertical markets.

About the Role

We are looking for a Full-Stack Developer to maintain, extend, and improve our SaaS risk management platform. The application helps teams map, analyse, and share risk. You will own feature development end-to-end — from database queries through to polished UI — and contribute to a clean, well-structured codebase.

What You Will Work On

The platform is a modern TypeScript / Next.js full-stack SaaS application consisting of:

• React-based frontend with Tailwind CSS and a component library for rich, polished UI
• Server-side rendering and API routes via Next.js (v14/15), including server actions
• SQL Server database with stored procedures for robust, performant data access
• LLM API integrations delivering AI-powered risk analysis features
• Auth.js authentication with multiple OAuth providers (Google, GitHub, Microsoft)
• Paddle-powered subscription and billing management

Key Technologies

 

Runtime

TypeScript / Node.js

Frontend Framework

React / Next.js (v14/15)

Styling

Tailwind CSS, Component Library

Database

SQL Server (Azure SQL & on-premises)

Data Fetching

SWR

Auth

Auth.js with OAuth (Google, GitHub, Microsoft)

Billing

Paddle (or similar subscription platform)

AI / LLM

LLM APIs (via SDK)

Monitoring

Azure Application Insights

Tooling

Git, Vitest / Testing Library, Prettier, ESLint

Responsibilities

• Develop and maintain features across the full stack of the JS/TS application
• Build and update UI components using Tailwind CSS and the component library
• Write and optimise SQL Server queries and database access scripts
• Integrate and maintain AI-powered features via LLM APIs
• Manage authentication flows using Auth.js with OAuth providers (Google, GitHub, Microsoft)
• Maintain and extend the billing and subscription system
• Monitor application health and diagnose issues using Azure Application Insights

Required Skills & ExperienceCore

• Strong TypeScript and React proficiency
• Hands-on experience with Next.js (v14/15)
• Working knowledge of SQL Server and stored procedures

Frontend

• Tailwind CSS and component library experience
• Familiarity with SWR for client-side data fetching

Backend / Infrastructure

• Experience with server actions and API routes in Next.js
• Understanding of OAuth flows

Tooling

• Git-based team workflows (feature branches, PRs)
• Vitest / Testing Library or equivalent unit/component testing experience
• Prettier and ESLint configuration

Nice to Have

• Familiarity with LLM SDKs
• Experience with Paddle or other subscription billing platforms
• Experience with Azure

Diversity, Equity, Inclusion & Equal Employment Opportunity at Banyan: Banyan affirms that inequality is detrimental to our Global Teams, associates, our Operating Companies, and the communities we serve. As a collective, our goal is to impact lasting change through our actions. Together, we unite for equality and equity. Banyan is committed to equal employment opportunities regardless of any protected characteristic, including race, color, genetic information, creed, national origin, religion, sex, affectional or sexual orientation, gender identity or expression, lawful alien status, ancestry, age, marital status, or protected veteran status and will not discriminate against anyone on the basis of a disability. We support an inclusive workplace where associates excel based on personal merit, qualifications, experience, ability, and job performance.

Recruitment NoticeBanyan Software may use artificial intelligence (AI) tools to assist in screening and/or assessing applicants during the recruitment process. All hiring decisions are made by our team. Personal information submitted through your application will be collected and used for recruitment purposes in accordance with applicable privacy laws. Contact us at any time with questions about our process or to request accommodation.

Beware of Recruitment Scams

We have been made aware of individuals fraudulently posing as members of our Talent Acquisition team and extending fake job offers. These scams may involve requests for personal information or payment for equipment. 

Protect yourself by following these steps:

• Verify that all communications from our recruiting team come from an @banyansoftware.com email address.
• Remember, employers will never request payment or banking information during the hiring process.
• If you receive a suspicious message, do not respond — instead, forward it to [Confidential Information] and/or report it to the platform where you received it.

Your safety and security are important to us. Thank you for staying vigilant.