Senior Full Stack Engineer (React / Node.js)

We're hiring a Senior Full Stack Engineer to build cloud platforms that keep homes, businesses and critical sites safe. You'll own large parts of a new cloud native management platform end to end, from API design to the screens installers and monitoring centres use every day across Australia, New Zealand, the UK and Ireland.
Requirements
6+ years of experience building production web applications with deep hands-on work in React and Node.js
Comfortable across the front end, back end and database, with shipped features that touch all three
Clean, well-tested TypeScript
Experience designing and scaling REST or GraphQL APIs that other teams and customers depend on
Experience shipping and running software on AWS or Azure, including containers, serverless and managed databases
Strong with PostgreSQL or MySQL, and knowing where Redis, DynamoDB or MongoDB fits
Practical web security knowledge: OAuth 2.0, OIDC, JWT and the OWASP Top 10
Experience mentoring engineers and leading technical decisions
Nice to have: IoT or device management platforms (MQTT), multi-tenant B2B SaaS with billing, React Native, ISO 27001 environments, Kubernetes or Terraform
Responsibilities
Design, build and own full stack features using React and TypeScript on the front end and Node.js on the back end
Architect APIs and services for device provisioning, remote diagnostics, account management, billing and online ordering
Build responsive interfaces that work as well on a phone in the field as on a desktop in a monitoring centre
Handle real-time device status and event data at scale using WebSockets, event streams and message queues
Implement secure authentication and access control, including SSO, MFA, role-based permissions and multi-tenant data isolation
Build audit trails so every operator action and transaction is traceable, in line with ISO 27001
Lead the migration of features from legacy portals into the new platform without disrupting existing customers
Review code, mentor engineers, and raise the bar on testing, observability and deployment practices
Requirements
6+ years of experience building production web applications with deep hands-on work in React and Node.js
Comfortable across the front end, back end and database, with shipped features that touch all three
Clean, well-tested TypeScript
Experience designing and scaling REST or GraphQL APIs that other teams and customers depend on
Experience shipping and running software on AWS or Azure, including containers, serverless and managed databases
Strong with PostgreSQL or MySQL, and knowing where Redis, DynamoDB or MongoDB fits
Practical web security knowledge: OAuth 2.0, OIDC, JWT and the OWASP Top 10
Experience mentoring engineers and leading technical decisions
Nice to have: IoT or device management platforms (MQTT), multi-tenant B2B SaaS with billing, React Native, ISO 27001 environments, Kubernetes or Terraform
Responsibilities
Design, build and own full stack features using React and TypeScript on the front end and Node.js on the back end
Architect APIs and services for device provisioning, remote diagnostics, account management, billing and online ordering
Build responsive interfaces that work as well on a phone in the field as on a desktop in a monitoring centre
Handle real-time device status and event data at scale using WebSockets, event streams and message queues
Implement secure authentication and access control, including SSO, MFA, role-based permissions and multi-tenant data isolation
Build audit trails so every operator action and transaction is traceable, in line with ISO 27001
Lead the migration of features from legacy portals into the new platform without disrupting existing customers
Review code, mentor engineers, and raise the bar on testing, observability and deployment practices
Why Join Us! ✨
Stable and Growing 🎯
InfAI is a leader in offshore operations with clients across US, Europe, and Asia.
Working for InfAI offers you a stable and rewarding career. Our international team in Mumbai and our commitment to employee happiness ensures we have a tremendous experience together!
Neat Perks 🎁
Comprehensive health insurance
Business Trips worldwide
Flexible timings
Fun activities round the year
Training & development
Unlimited Snacks! ☕
🌿
Enhance Your Skills 🙌
At InfAI we use the latest technologies and will always welcome your ideas to make our product better.
Our training and development programs make sure you always stay ahead of the curve and enhance your profile!
Life at InfAI
Team Dinners
Celebrating wins together
Christmas Party
White Elephant & festivities
Diwali Celebration
Festival of lights with the team
Independence Day
Celebrating our nation together
Stable and Growing 🎯
InfAI is a leader in offshore operations with clients across US, Europe, and Asia.
Working for InfAI offers you a stable and rewarding career. Our international team in Mumbai and our commitment to employee happiness ensures we have a tremendous experience together!
Neat Perks 🎁
Comprehensive health insurance
Business Trips worldwide
Flexible timings
Fun activities round the year
Training & development
Unlimited Snacks! ☕
🌿
Enhance Your Skills 🙌
At InfAI we use the latest technologies and will always welcome your ideas to make our product better.
Our training and development programs make sure you always stay ahead of the curve and enhance your profile!

Work arrangement
No