Senior Software Engineer – Full Stack

Jobtailor; Toronto; On-site; CAD 110,000 - 150,000; Full time

Job summary

Jobtailor is seeking a Senior Software Development Engineer (Full Stack) to enhance platform value for clients. You will work with developers, QAs, product managers, and the platform team in a hybrid setting, balancing client challenges with best-in-class software design.

Ideal candidates combine technical leadership with business problem-solving, thriving on complex challenges and real-world client impact. This role emphasizes architecture, testing, and scalable cloud-native solutions.

Qualifications

• Deep expertise in modern TypeScript and cloud-native development.
• Experience with state management and reusable component libraries.
• Proven automated testing strategies (unit, integration, API, end-to-end).
• Experience with PostgreSQL and MongoDB.
• Familiarity with DI/ORMs and enterprise SDLC practices.
• Strong debugging and problem-solving abilities.

Responsibilities

• Design and deliver full-stack software solutions for client-focused projects.
• Collaborate with developers, QAs, product managers, and platform teams.
• Lead technical decisions and champion best practices across the SDLC.

Skills

Modern TypeScript

Cloud-native AWS

Automated testing

Domain-driven design

Event-driven architectures

State management

Functional programming

PostgreSQL

MongoDB

DI/ORM

Debugging skills

Architectural patterns

Tools

AWS

CI/CD pipelines

Monitoring

Job description

We’re looking for a passionate Senior Software Development Engineer (Full Stack) to help increase the value proposition of the platform to our existing clients by creating efficient project delivery.
You will work closely with your fellow developers, QAs, product managers, and members of the platform team daily.
This is a unique hybrid product-and-client-focused engineering role.
Success in this role goes beyond building great software; it requires understanding client challenges, evaluating multiple approaches, and designing the right solution.
We are looking for engineers who enjoy combining technical excellence with business problem-solving, helping clients achieve their goals rather than simply implementing out-of-the-box functionality.
You’ll thrive in this role if you’re ready to step into technical leadership, enjoy solving real-world client problems, and thrive on complex challenges.

Requirements

• Deep expertise in modern TypeScript, including:
• - Advanced type systems
• - Generics
• - Functional programming concepts
• - Asynchronous programming patterns
• - Domain-driven design
• - Event-driven architectures
• Experience building and operating cloud-native applications on AWS or other cloud, including infrastructure, deployment pipelines, monitoring, and scalability considerations.
• Experience implementing state management solutions
• Experience building reusable component libraries and design systems
• Proven ability to champion and execute comprehensive automated testing strategies (unit, integration, API, and end-to-end).
• Experience with Postgresql and MongoDB
• Experience with Dependency Injection (DI) and ORMs
• A real passion for learning and staying up to date with best practices.
• Deep expertise in enterprise-level SDLC methodologies and software automation practices.
• Excellent debugging skills.

Core Competencies

Demonstrates deep expertise in modern TypeScript, cloud-native application development on AWS, and comprehensive automated testing strategies. Combines technical excellence with business problem-solving to deliver effective solutions for client challenges.

Highest-signal resume keywords

• Modern TypeScript Expertise
• Cloud-Native Application Development
• Automated Testing Strategies
• Postgresql and MongoDB Experience
• Enterprise-Level SDLC Methodologies

Hard Skills

• TypeScript
• Advanced Type Systems
• Generics
• Functional Programming
• Asynchronous Programming
• Domain-Driven Design
• Event-Driven Architectures
• State Management Solutions
• Reusable Component Libraries
• Debugging Skills

Soft Skills

• Problem-Solving
• Collaboration
• Technical Leadership

Industry Keywords

• Software Development Life Cycle
• Software Automation Practices
• Automated Testing
• Dependency Injection
• Object-Relational Mapping

Tools & Technologies

• AWS
• Infrastructure
• Deployment Pipelines
• Monitoring
• Scalability