Senior Fullstack Software Engineer

About the role

The Senior Fullstack Software Engineer will play a critical role in designing, building, and scaling software across LVT's full stack. They will own features end-to-end, from building responsive React applications to optimizing federated GraphQL subgraphs. They will work alongside a highly collaborative team to shape how enterprise customers interact with real-time IoT data and advanced automated workflows.

Responsibilities

• Deliver High-Quality Software End-to-End: Design, build, test, and ship robust features across the full stack, ensuring code aligns with high-performance standards from UI components to backend REST and GraphQL services.
• Cross-Service Architecture & Debugging: Trace, isolate, and resolve complex, systemic bugs across service boundaries (UI, API gateways, subgraphs, and legacy codebases) to ensure seamless performance.
• API & Data Integrity: Define clear data contracts between microservices, maintain schema federation hygiene, and architect secure, scalable real-time WebSocket data flows.
• Promote Reliability and Performance: Write and run comprehensive tests, instrument critical system metrics, and build operational dashboards to proactively monitor system health and minimize downtime.
• Technical Mentorship: Provide technical guidance and constructive code reviews to mid-level and junior engineers, encouraging best practices and continuous learning across the team.
• Continuous Engineering Improvement: Collaborate across adjacent QA, DevOps, and architecture teams to accelerate CI/CD pipelines, enhance stack-wide type safety, and deprecate legacy systems without disrupting product delivery.

Requirements

• 5+ Years of Professional Development Experience: A proven track record building enterprise-grade applications, with a heavy emphasis on full-stack TypeScript architectures.
• Frontend & Framework Mastery: Deep production experience working with React and modern Next.js environments (including App Router and server actions).
• Backend & API Expertise: Strong command of Node.js (NestJS preferred) and hands-on experience designing schemas, resolvers, and subscriptions using Apollo Server or similar GraphQL ecosystems.
• Data & Real-Time Systems Knowledge: Proficiency with relational databases (MySQL preferred), query builders/ORMs (like Knex), and experience scaling real-time web applications using WebSockets.
• Security & Infrastructure Fundamentals: Solid understanding of modern authentication/authorization patterns (OAuth/OIDC, JWT) alongside familiarity with Docker, containerization, and modern CI/CD practices.
• Problem Solver & Systems Thinker: Exceptional analytical skills with the ability to dive into unfamiliar or legacy codebases, deduce business logic, and refactor effectively.
• Compelling Communicator: Strong interpersonal and collaboration skills, with an innate ability to lead cross-team design discussions and articulate technical strategies clearly to stakeholders.

Qualifications

• Education: Bachelor's degree in Computer Science, Software Engineering, or a related field.
• Experience: Minimum of 5 years of professional software development experience.

Skills

• React, Next.js
• NestJS, Apollo Server
• TypeScript
• Node.js
• Relational Databases (MySQL)
• Query Builders/ORMs (Knex)
• WebSockets
• Modern Authentication/Authorization Patterns (OAuth/OIDC, JWT)
• Docker, Containerization
• CI/CD Practices

Benefits

• Comprehensive health, dental, and vision coverage
• Retirement benefits (401k match up to 4%)
• Flexible PTO

Pay

The beginning annual salary range for this role is $159,000 - $192,000 USD and is determined by location, job-related experience, and education/training. Your total earning potential is amplified by a bonus structure tied to meeting goals, and you will become an owner from day one through our employee equity program.

Schedule

Full-time position available.

Benefits

• Comprehensive health, dental, and vision coverage
• Retirement benefits (401k match up to 4%)
• Flexible PTO

Equal Opportunity Employer

LVT is proud to be an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status. All candidates must pass a drug screening and background check upon employment. Some roles may also require passing a federal background check and fingerprinting. Must be authorized to work in the U.S.