Application Architect

Langate is an award-winning provider of web development services in 3 main categories: business, healthcare, and education. At Langate, we're passionate about crafting digital solutions that make a real impact. We take immense pride in our strong collaboration with the U.S. We're here to shape the future of technology, one milestone at a time.

In addition to technical expertise, we value excellent communication skills. Collaboration and effective teamwork are the cornerstones of our success, and we believe in fostering an environment where everyone’s voice is heard and valued.

This role is for a hands-on Application Architect who wants genuine ownership - driving key architectural decisions and directly influencing how a modern US e-commerce platform is built and evolves. You'll lead three parallel workstreams (legacy ColdFusion -> Angular/.NET migration, on-prem -> Azure re-platforming, and a greenfield Order Management System) and you'll do it in a team that treats AI-augmented engineering as a first-class skill. If you live in Claude Code and ChatGPT, co-author PRDs with BAs, and can turn a spec into a working prototype in a couple of days, this is the seat for you.

About the project:

Leading national online destination for durable medical equipment (DME), As part of its ongoing commitment to customer experience, performance, and scalability, is modernizing its custom-built e-commerce platform by migrating from Adobe ColdFusion to a modern Angular frontend with a .NET Core backend.

Requirements

• 10+ years of hands-on engineering experience with .NET / C# (.NET 8+), of which 3+ in an Architect or Lead role on production e-commerce or large-scale transactional systems
• Clean Architecture and CQRS (MediatR, Dapper, Hangfire, Polly)
• Strong practical command of Clean Architecture/Vertical Slice, CQRS, and integration patterns (MediatR, Dapper, Hangfire/Quartz, Polly, MassTransit / Service Bus)
• Solid experience with Angular (latest LTS) - able to guide frontend architecture, review code, and pair with the UI team on storefront migration
• Proven Azure architecture experience: App Service / Container Apps, Azure SQL, Service Bus, Key Vault, Application Insights, Azure DevOps CI/CD; IaC with Bicep or Terraform
• Hands-on experience designing and delivering Order Management/e-commerce backends (catalog, pricing, cart, checkout, payments, fulfillment, returns)
• Mandatory: practical Agentic / AI-Augmented Engineering experience - daily use of Claude Code, ChatGPT, GitHub Copilot or equivalent for code generation, refactoring, code review, and rapid prototyping; familiarity with spec-driven / PRD-driven AI workflows (e.g., BMAD-METHOD, Spec-Kit, or similar)
• Ability to co-author PRDs with Business Analysts, decompose them into technical specs / ADRs, and produce a working prototype within days using AI coding agents
• Experience modernizing legacy platforms (ColdFusion, classic ASP.NET, or similar monolith → modern stack) and migrating workloads from on-prem to Azure is a strong plus
• Strong written and verbal English (Upper-Intermediate / Advanced) - must communicate confidently with US-based product, engineering, and non-technical stakeholders
• Comfort working as the technical face of the engagement: leading discovery sessions, presenting trade-offs to the client, and making and defending architectural decisions
• Comfort working with distributed teams and collaborating with US-based clients

Responsibilities

• Migration of the legacy ColdFusion e-commerce platform to a modern Angular storefront served with a .NET 8+ backend
• Lift-and-shift / re-platforming of the existing system from on-prem to Azure (target architecture, landing zone, IaC, CI/CD, cutover plan)
• Greenfield design and delivery of a new Order Management System (OMS) and future engagement projects to onboard franchise and corporate stores
• Use AI coding agents (Claude Code, ChatGPT, Copilot) to rapidly prototype concepts, validate integration approaches, and accelerate the team's delivery velocity
• Define and enforce engineering standards: branching strategy, code review, testing pyramid, observability, security/PCI-DSS posture
• Hands-on contribution: write production code on critical paths (auth, checkout, OMS core), unblock the team, lead spikes
• Lead technical discovery and refinement sessions with the client; present architectural options and trade-offs to both engineering and business stakeholders
• Mentor the .NET and Angular engineers; raise the bar on AI-augmented development practices across the team

Team From our side: 1 PM, 1 BA, 3 devs

From the client side: 1 .Net full-stack dev, 3 ColdFusion devs, BA

TechStack

• Legacy: Adobe ColdFusion, SQL Server (on-prem)
• Target: .NET 8 (C#), Angular (latest LTS), Azure SQL / SQL MI, Azure App Service / Container Apps, Azure Service Bus, Azure DevOps
• Data access: EF Core + Dapper hybrid
• Observability: Application Insights, Elastic APM, Bugsnag
• AI tooling expected in daily workflow: Claude / Claude Code, ChatGPT, GitHub Copilot

Schedule: 5/2, 8-hour working day (40 hr per week), flexible schedule. Ability to interact with New York time zone at least 4 hours a day

Hiring process: HR interview + Technical Interview

Why Choose Us? What Do We Offer that's Exceptional?

• Cutting-Edge Technologies on Real Projects: At Langate, you'll work with the latest technologies on live projects. We're a dynamic, fast-growing company, so you'll find a minimal amount of legacy systems and plenty of opportunities to implement new technologies.
• Work-Life Balance with Benefits: We value work-life balance and offer paid time off, including vacation days and sick leave. Remote work options and hearty life are part of the package, too.
• Investment in Your Growth: We're committed to your professional development. You can expect training programs, courses, and opportunities to enhance your English language skills.
• Team Building and Unity: We know that a happy team is a productive team. That's why we organize team-building events and group activities to foster strong bonds and a sense of belonging.

When you choose us, you're choosing a company that values innovation, invests in its employees, and provides a supportive and engaging work environment. Join us in shaping the future of technology!

Need more information? Welcome!