Sr JS FullStack Software Engineer (strong Back-End focus, NestJS is a must)

Senior JavaScript FullStack Software Engineer for SaaS construction application (strong Back-End Focus, NestJS is a must)

Location - Medellin preferable, Latam

Area specialization - Backend

Tech Level - Senior

Tech Stack - Nest.js, TypeScript, JavaScript

About the Client

We are a software company offering the business tools & resources that commercial construction subcontractors need to build confidence & peace of mind in their ability to deliver on what they have promised. Unlike other construction software, we do this by prioritizing accuracy, efficiency, and error reduction. This commitment fuels our mission to drive success for SMBs.

In the future, trade service companies can manage their entire business & project lifecycle in one place, allowing them more time to focus on the growth of their business.

Project details

We are building a greenfield SaaS application for the construction industry that prioritizes exceptional user experience and streamlined workflows. The architecture leverages modern technologies like Next.js, Shadcn UI, and Supabase to create a scalable, user-friendly platform that simplifies construction management processes.

Your Team

2 full-time full-stack engineers, 1 part-time UI/UX designer which will be working closely with our main stakeholder.

What's in it for you

• Interview process that respects people and their time
• Professional and open IT community
• Internal meet-ups and resources for knowledge sharing
• Time for recovery and relaxation
• Bright online and offline events
• Opportunity to become part of our internal volunteer community

Responsibilities

Senior Full Stack Developer with strong Back-End Focus:

• Lead back-end development efforts, starting with Next.js API routes and potentially transitioning to Nest.js services as complexity increases.
• Design and implement well-structured PostgreSQL schemas with proper indexing and row-level security for tenant data isolation.
• Set up and maintain authentication/authorization systems using Supabase.
• Develop and document APIs for front-end consumption.
• Implement core SaaS concepts including multi-tenancy, subscription management, and data isolation.
• Plan for future scalability while maintaining a balance between development speed and technical debt.
• Participate in code reviews and contribute to technical architecture decisions.
• Work within a Kanban-style agile environment to deliver features iteratively.

Requirements

• 5+ years of professional software development experience, with at least 3 years of back-end development.
• Experience with Next.js API routes and/or Nest.js for back-end services.
• Strong knowledge of PostgreSQL database design, performance optimization, and security.
• Proficiency with TypeScript and modern JavaScript practices.

Nice to Have:

• Experience with construction industry software or domain knowledge.