.NET Core Development Services

Build Faster. Scale Smarter. Rely on .NET Core.

Enterprise-grade backend systems and APIs built for performance, scale, and long-term maintainability.

Why Choose Us

.NET Core expertise, built for enterprise

We stay focused on stakeholder priorities: cost, speed, and quality.

Enterprise-Ready Architecture

We design .NET Core systems for production from day one: modular, secure, and built to accommodate growth without costly rewrites later.

Cross-Platform Delivery

.NET Core runs on Windows, Linux, and macOS. We leverage that flexibility to reduce infrastructure costs and expand deployment options.

Seamless Legacy Integration

We migrate .NET Framework systems into .NET Core without disrupting operations, a transition executed for demanding enterprise clients.

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Our Proven Track Record

Delivering Results

eCommerce
FragranceNet

A decade-long partnership modernizing FragranceNet's full technology stack. .NET Core is central to a RESTful, micro-frontend architecture with containerized deployments and OpenSearch integration. Marketing-driven development efforts now yield customer return rates 15% above the industry average.

Manufacturing
Caplugs

We built a multi-storefront e-commerce content management system using .NET Core on the backend with 25-plus API endpoints, JWT-based auth via Azure AD, and Azure Service Bus integration. The engagement expanded in scope as results proved out, growing into an ongoing staff augmentation model.

our service

Mastery of the .NET Core Ecosystem

From APIs to microservices, we deliver end to end.

API & Microservices

We build RESTful and GraphQL APIs using ASP.NET Core WebAPI, applying clean architecture to keep systems modular and testable.

Data & ORM

We leverage Entity Framework Core, Dapper, and LinQ with SQL Server, PostgreSQL, and MySQL for high-performance, maintainable data layers.

Auth & Security

We implement Microsoft Identity, OAuth, JWT, and Azure AD across .NET Core apps, satisfying compliance demands in financial services and healthcare.

DevOps & CI/CD

We configure Azure DevOps pipelines, Docker containers, and automated test suites to keep deployments reliable, repeatable, and audit-ready.

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Why First Factory

The Competitive Difference

For more than 25 years, we have partnered with companies to accelerate go-to-market, improve user outcomes, and deliver tangible business results.

Time Zone Alignment

Costa Rica is 1–2 hours behind Eastern Time. No 12-hour lag, no async-only collaboration. Our teams communicate in real time and attend your standups live.

Security Posture Built In

SOC 2 Type 2 certified. Full MDM device management. Background checks for every hire. Dedicated full-time IT Security Officer. Your IP is protected.

Design + Engineering Under One Roof

Our Costa Rica design team handles UX/UI for client projects, keeping design and development tightly coordinated. There are no handoff gaps or delays iterating.

No Long-Term Lock-In

No minimum contract length on resources. We require written notice to ramp down based on contract terms. You scale based on your needs, not our revenue targets.

Our Guarantee

If  you're unsatisfied — for any reason — at any point during the first 30 days of your project, you can walk away on the spot. No penalties, no questions asked.

25+
Years of experience
175+
Full-time employees
3+ years
Average client tenure
5X
Inc. 5000 Honoree
Engagement Models

Your needs, your way of working.

The right engagement model reduces risk, accelerates delivery, and lowers total cost.

Staff Augmentation

Dedicated full-time engineers who become a natural extension of your team, working in your time zone and integrating into your existing workflows.

Handpicked for ideal fit
Complete transparency
Your team may interview candidates
Engineering Manager oversight
Adapts to your processes
100% committed to you
40hrs per week, billed hourly
30-Day Satisfaction Guarantee
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Scrum Teams

Self-organizing, collaborative teams who deliver high-quality software in two-week sprints with complete transparency and regular stakeholder engagement.

Complete project management
Engineering architecture
Scalable engineering team
QA Resources
Pick & choose Agile ceremonies
Exceptional communication
Seamless integration with your team
Flexibility to pivot as needed
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Milestone-Based Projects

Fixed-price custom development with guaranteed pricing, clearly defined scope, and dedicated project management from concept to post-launch support.

Clear up front scope defined
Fixed price, billed in 3 installments
Fully independent team
Complex challenges tackled first
High transparency & alignment
Structured UAT window
Post-release support
Easy transition to maintenance
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Specialized Services

Assisting you with strategy, implementation, and maintenance

We offer packages that help you achieve business outcomes and provide long-term product support.

Consulting

Expert guidance to evaluate software solutions, compare build vs. buy options, and optimize your development processes through strategic analysis and recommendations.

Service Contracts

Ongoing maintenance and support agreements available as fixed-price annual contracts or hourly arrangements with specific SLAs tailored to your post-launch needs.

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Frequently asked questions

Everything you want to know clearly explained

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