.NET / JavaScript Full Stack Software Developer

Our client, TwinEngines, is seeking a Full Stack Software Developers to join their Costa Rica engineering team.

This role is ideal for a developer who enjoys building modern, cloud-connected applications that integrate ERP, CRM, AI, shop-floor tools, and mobile platforms to support real-world business operations in manufacturing, distribution, and industrial environments.

The developer will play a key role in designing, building, and maintaining applications that support mission-critical processes. This includes web, mobile, and desktop development; cloud integrations; and participation in solution architecture alongside engineering teams in Costa Rica and the U.S.

Key Responsibilities
– Develop Windows, Web, and Mobile (.NET MAUI) applications connected to Azure cloud and AI services.
– Build features for portals, shop-floor systems, collaboration tools, and mobile modules.
– Participate in architecture sessions to map systems, processes, and data flows that bridge ERP gaps.
– Implement AI capabilities such as computer vision, OCR, natural language processing, and predictive analytics.
– Create custom dashboards and Power BI analytics for data-driven decision-making.
– Integrate solutions with Office 365, ERP systems, SharePoint, Teams, OneDrive, CRM tools, and third-party applications.
– Collaborate with cross-border engineering teams to deliver performant, reliable, and maintainable software.
– Support continuous improvement through Lean Agile practices.

What the Role Offers
– Competitive salary and benefits package.
– Ongoing professional development and certification opportunities.
– A collaborative, innovation-driven culture.
– Growth opportunities within a hybrid U.S.–Costa Rica engineering structure.
– Occasional travel to the headquarters in Atlanta.
– A chance to contribute to cutting-edge industrial digital transformation solutions.

Requirements

Required Skills and Experience

Programming and Development

- C#
- ASP.NET
- SQL Server
- JavaScript (ES6+)

Front-End / Web Skills

- DOM manipulation
- Asynchronous programming (Promises, async/await)

Tools & Engineering Practices

- Microsoft Visual Studio
- Git
- Modern SDLC practices

Architecture & Systems

- Cloud architecture fundamentals
- API-driven systems

Education

- Bachelor’s degree in Software Engineering, Computer Science, or related field

Language

- Intermediate English (spoken and written)

Soft Skills / Work Style

- Collaboration
- Self-directed work
- High accountability / ownership mindset

Preferred Skills (Nice to Have)

.NET / Web Frameworks

- ASP.NET MVC
- ASP.NET Web API
- RESTful services

Front-End Frameworks

- Angular
- React
- Vue

Microsoft Azure Cloud

- Azure App Services
- Azure Functions
- Azure AI Services
- Azure Storage
- Azure SQL

Mobile Development

- .NET MAUI

AI / Data Science

- AI/ML workflows
- Computer vision
- Document intelligence
- Predictive models

Analytics & Reporting

- Power BI
- Data warehousing
- Operational reporting

Business Systems

- ERP integrations
- Manufacturing systems understanding

Microsoft Productivity & Automation

- Office 365
- SharePoint
- Workflow automation

Certifications

- Microsoft developer certifications