Senior Developer (Node / React)

Safety Mojo; Sandy (UT); On-site; USD 120,000 - 150,000; Full time

Benefits offered by this job

Competitive salary

401(k) with match

Health, dental, vision insurance

Flexible working hours

Job summary

Mojo AI is hiring a Senior Developer to build and scale frontend and backend systems in a high-traffic environment. You will work with Node.js, React, and modern databases to deliver secure, reliable services.

The role emphasizes performance, security, and collaboration with product teams to meet business goals. Office location is Sandy, Utah with competitive benefits.

Qualifications

• 6-12 years of general development experience with a focus on Node.js and React.
• Proven experience in scaling applications and optimizing systems for high performance.
• Strong understanding of database design principles for SQL and NoSQL.
• Experience with cloud platforms and containerization is a plus.
• Excellent problem-solving and communication skills.

Responsibilities

• Backend Development: Design, develop, and maintain high-performance, scalable backend services and APIs using Node.js.
• Front Development: Design, develop, and maintain high-performance, web applications using React.
• Database Management: Develop and optimize data base structures using SQL (e.g., MySQL, PostgreSQL) and NoSQL (e.g., MongoDB) technologies, ensuring data integrity and performance.
• Scalability & Performance Optimization: Architect and implement scalable systems that can handle large volumes of traffic and data while ensuring high availability and low latency.
• Code Quality & Best Practices: Write clean, well-documented, and reusable code, following industry best practices, security guidelines, and standards.
• Cross-functional Collaboration: Work closely with developers, product managers, and other stakeholders to understand requirements and provide solutions that align with business goals.
• Troubleshooting & Debugging: Diagnose and resolve complex issues in a timely manner, implementing robust solutions to prevent future occurrences.
• Continuous Improvement: Stay up-to-date with emerging technologies, tools, and industry trends, advocating for improvements to technology and team processes.

Skills

Node.js

React

NoSQL

SQL

Cloud platforms

Containerization

Security

Performance

Team collaboration

Tools

Node.js

React

SQL databases

NoSQL databases

MySQL

PostgreSQL

MongoDB

AWS

Azure

Google Cloud

Docker

Kubernetes

Job description

Mojo AI is revolutionizing safety management in high-risk industries like construction and oil & gas. How are we doing this? With Safety Mojo – our groundbreaking, AI-powered app designed for frontline safety professionals. Right now, we’re at an inflection point. We’ve proven product-market fit, we have incredible customers who love what we’ve built, and we’re moving from startup phase into serious growth mode.

The Job

We are seeking an experienced and highly skilled Senior Developer to join our team. The ideal candidate will have 6-12 years of development experience with a focus on Node.js, React, SQL, and NoSQL databases. You will play a critical role in designing, developing, and scaling back and front end systems to support high-traffic applications, ensuring reliability, security, and performance.

Key Responsibilities

• Backend Development: Design, develop, and maintain high-performance, scalable backend services and APIs using Node.js.
• Front Development: Design, develop, and maintain high-performance, web applications using React.
• Database Management: Develop and optimize data base structures using SQL (e.g., MySQL, PostgreSQL) and NoSQL (e.g., MongoDB) technologies, ensuring data integrity and performance.
• Scalability & Performance Optimization: Architect and implement scalable systems that can handle large volumes of traffic and data while ensuring high availability and low latency.
• Code Quality & Best Practices: Write clean, well-documented, and reusable code, following industry best practices, security guidelines, and standards.
• Cross-functional Collaboration: Work closely with developers, product managers, and other stakeholders to understand requirements and provide solutions that align with business goals.
• Troubleshooting & Debugging: Diagnose and resolve complex issues in a timely manner, implementing robust solutions to prevent future occurrences.
• Continuous Improvement: Stay up-to-date with emerging technologies, tools, and industry trends, advocating for improvements to technology and team processes.

Responsibilities described in this job description are subject to change at the Company’s discretion. You may be asked to carry out other duties, tasks, or projects in support of the company's initiatives.

Requirements

• 6-12 years of general development experience, with a strong focus on Node.js, and React.
• Proven experience in scaling applications and optimizing systems for high performance.
• Strong understanding of database design principles, indexing, query optimization, and data modeling for both SQL and NoSQL databases.
• Experience with cloud platforms (AWS, Azure, Google Cloud) and containerization technologies (Docker, Kubernetes) is a plus.
• Excellent problem-solving skills and the ability to work effectively in a fast-paced, team-oriented environment.
• Strong communication skills, with the ability to convey complex technical concepts to both technical and non-technical stakeholders.

Preferred Qualifications

• Experience with Microservices architecture and distributed systems.
• Familiarity with CI/CD pipelines and DevOps practices.
• Knowledge of modern technologies to collaborate effectively with dev teams.

Benefits

Competitive salary, 401k and performance-based bonuses.

Comprehensive health, dental, and vision benefits.

Flexible working hours

Job Type: Full-time

Work Location: In person at our offices in Sandy Utah.

Compensation & Benefits

The base salary range for this role is $120,000.00 – $150,000.00 per year. Actual compensation will be determined based on experience, skills, and location.

This role is eligible for bonuses.

Benefits include two health insurance options (traditional and HDHP with HSA), dental, vision, life, disability, 401(k) with match, and generous PTO.

EEOC & Inclusion

We are an equal opportunity employer and are committed to building an inclusive environment for all employees. We do not discriminate on the basis of race, color, religion, sex (including pregnancy, sexual orientation, and gender identity), national origin, age, disability, genetic information, or any other protected status under applicable law.

Employment Classification

This role is exempt according to the wage and hour laws governed by the Fair Labor Standards Act.

American With Disabilities Act

We are committed to providing reasonable accommodations for qualified individuals with disabilities in accordance with the Americans with Disabilities Act. If you require assistance during the application or interview process, please let us know.

At-Will Employment

Employment with Mojo AI is at-will. This means that either the employee or the company may terminate the employment relationship at any time, with or without cause or notice, subject to applicable law.

Background Check Requirement

Employment is contingent upon successful completion of a background check and verification of authorization to work in the United States.