Sr. Applications Developer MERN

Job Description

Job Description

Senior Application Developer (MERN/ GCP/ Technical Lead)

Build the Future of Construction Technology

Foundation Software is one of the fastest-growing construction software companies in the U.S. and a multi-year Northeast Ohio Top Workplace. We're seeking a Senior Application Developer who combines strong hands-on engineering skills with technical leadership, project ownership, and a passion for building modern cloud-native applications.

This role focuses on the TypeScript-based MERN stack and Google Cloud Platform (GCP) while helping evolve our broader technology ecosystem.

Development & Architecture

• Design, build, and support scalable applications using MongoDB, Express.js, React, Node.js (TypeScript), APIs, and GCP.
• Develop modern web applications, microservices, integrations, and cloud-native solutions deployed via containers to Google Cloud Run, Cloud Functions, and Kubernetes.
• Lead solution design and contribute to architecture decisions.
• Drive modernization initiatives that improve scalability, reliability, security, and maintainability.

Technical & Project Leadership

• Lead technical projects from design through deployment.
• Coordinate work across developers, product teams, and stakeholders.
• Facilitate architecture reviews, planning sessions, and technical decision-making.
• Identify and resolve technical risks, dependencies, and delivery challenges.

Mentorship & Collaboration

• Mentor developers through code reviews, coaching, and knowledge sharing.
• Promote engineering best practices including clean architecture, dependency injection, testing, performance, and code quality.
• Partner closely with Product, QA, DevOps, Architecture, and business teams.
• Troubleshoot complex production issues using the observability stack (Sentry, OpenTelemetry, structured logging) and drive continuous improvement.

Required

• 7+ years of software development experience.
• Proven experience leading software projects and influencing technical direction.
• Strong, current expertise with TypeScript
• Strong expertise with:
  • MongoDB (native Node.js driver; Mongoose a plus)
  • js
  • React
  • js
• Hands-on experience with:
  • Dependency injection / IoC containers (InversifyJS or similar)
  • Redis-backed job queues (BullMQ or similar) and Google Cloud Tasks / Pub/Sub
  • Auth0 / OIDC / JWT-based authentication
  • Schema validation with Zod
  • Modern React tooling - Redux Toolkit, React Hook Form/Formik, and Material UI (MUI) or similar.
• Experience developing and deploying solutions in Google Cloud Platform (GCP), including Cloud Run, Cloud Functions, Cloud Tasks, Pub/Sub, and Secret Manager.
• Experience with Docker and Kubernetes for containerized service deployment.
• Experience building scalable web applications, APIs, microservices, and distributed systems.
• Experience mentoring developers and leading technical discussions.
• Strong communication, collaboration, and problem-solving skills.

Preferred

• Experience as a Technical Lead, Lead Developer, or Project Lead.
• Experience with payments/card processing, PCI-DSS, or client-side field-level encryption.
• Experience with construction software, ERP systems, financial systems, or expense management solutions.
• Experience building or integrating expense management, AP, invoice processing, procurement, or purchasing applications.
• Experience with feature flag release management
• Experience integrating LLMs / generative AI into production applications.
• Familiarity with equivalent technologies on the Azure / .NET / C# stack.

Why Foundation?

• Influence architecture and technical direction.
• Lead impactful projects and mentor other developers.
• Work with modern TypeScript, React, and GCP technologies.
• Competitive compensation, strong benefits, and career growth opportunities.
• Award-winning culture with a collaborative, employee-focused environment.

If you enjoy building modern cloud applications, leading technical initiatives, and mentoring others, we'd love to talk with you.