Senior Full Stack Engineer

Shree Krupa Enterprise Inc.; Toronto; On-site; CAD 110,000 - 160,000; Full time

Job summary

Shree Krupa Enterprise Inc. in Toronto, Canada seeks a Senior Full Stack Engineer to design and build enterprise software across frontend and backend stacks.

You will work with Next.js, React, TypeScript, Java, Spring Boot, PostgreSQL, and security-focused Linux infrastructure to deliver scalable, secure applications. You will contribute to architecture, code quality, and production reliability, review PRs, and mentor junior engineers while collaborating with product, QA, design, and DevOps

Qualifications

• 5+ years of professional full-stack software development.
• Strong experience with Java and Spring Boot.
• Experience designing REST APIs and integrating third-party services.
• Strong understanding of SQL, relational database design, and data modelling.
• Practical experience with distributed applications and integrating outside services.
• Experience writing automated unit, integration, and API tests.
• Strong understanding of secure software development practices.
• Ability to communicate technical decisions clearly and work effectively in a collaborative team.

Responsibilities

• Design and develop scalable frontend applications using Next.js, React, TypeScript.
• Build secure backend services and REST APIs using Java, Spring Boot.
• Design multi-tenant workflows with authorization, tenant isolation, and data protection.
• Integrate authentication and authorization using OAuth2, OIDC, JWT, RBAC.
• Work with PostgreSQL, Keycloak, object storage and integrations with outside services.
• Participate in architecture decisions, technical planning, and system design reviews.
• Write reliable, maintainable, and well-tested production code.
• Review pull requests and provide technical guidance to junior engineers.
• Collaborate with product managers, designers, QA, and DevOps engineers.
• Investigate production issues and improve performance, reliability, and observability.

Skills

Java

Spring Boot

REST APIs

SQL & Data Modeling

TypeScript

React

Next.js

Security Best Practices

Team Collaboration

Tools

Docker

Kubernetes

Linux

Nginx

CI/CD

Job description

Lead the development of secure, multi-tenant enterprise applications across modern frontend and backend technologies.

We are looking for a Senior Full Stack Engineer to help design and build enterprise software products used by businesses and their teams. You will work across Next.js, React, TypeScript, Java, Spring Boot, PostgreSQL, authentication, and Linux infrastructure. You will contribute to architecture, implementation, code quality, security, and production reliability.

What you’ll do

• Design and develop scalable frontend applications using Next.js, React, TypeScript, and modern UI practices.
• Build secure backend services and REST APIs using Java, Spring Boot, and related technologies.
• Design multi-tenant workflows with appropriate authorization, tenant isolation, and data protection.
• Integrate authentication and authorization using OAuth2, OIDC, JWT, RBAC, and identity platforms.
• Work with PostgreSQL, Keycloak, object storage and integrations with outside services.
• Participate in architecture decisions, technical planning, and system design reviews.
• Write reliable, maintainable, and well-tested production code.
• Review pull requests and provide technical guidance to junior engineers.
• Collaborate with product managers, designers, QA, and DevOps engineers.
• Investigate production issues and improve application performance, reliability, and observability.

What you’ll need

• Typically 5+ years of professional full-stack software development experience.
• Strong experience with Java and Spring Boot.
• Experience designing and consuming REST APIs and integrating third-party services.
• Strong understanding of SQL, relational database design, and data modelling.
• Practical experience with distributed applications and integrating outside services.
• Experience writing automated unit, integration, and API tests.
• Strong understanding of secure software development practices.
• Ability to communicate technical decisions clearly and work effectively in a collaborative team.

Nice to have

• Experience building SaaS, enterprise, ERP, CRM, IAM, or other business platforms.
• Experience with Keycloak, OAuth2, OIDC, SAML, or identity and access management systems.
• Experience with Docker, Kubernetes, Linux, Nginx, or cloud infrastructure.
• Experience with observability tools, logging, metrics, tracing, and performance optimization.
• Experience mentoring junior developers or leading technical initiatives.