Senior Application Developer (MERN/GCP/Technical Lead)

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. What You'll Do 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. What We're Looking For 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.