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Mobile Full Stack Developer Jobs in Ontario (NOW HIRING)

Quantiphi, Inc.

Full Stack Developer

Toronto, ON · Remote

Full Stack Software Developer Experience Level: 5-10 yrs Work Location: US East/Canada (Remote) Role Overview: We're looking for a Full Stack Software Developer to design and build scalable, high ...

Ci

Full Stack Developer

Toronto, ON · On-site

CA$69K - CA$119K/yr

The Full Stack Developer is responsible for designing and developing web-based and middle-tier applications that support the firm's investment management and trading systems. This role works closely ...

Trusscore

Full Stack Developer

Kitchener, ON · On-site

CA$85K - CA$95K/yr

Your Mission Trusscore is seeking a mid-level full-stack developer to help build, standardize and scale our data and automation internal application ecosystem. Our ecosystem consists of front-end ...

Trusscore USA Inc

Full Stack Developer

Kitchener, ON

$85K - $95K/yr

Your Mission Trusscore is seeking a mid-level full-stack developer to help build, standardize and scale our data and automation internal application ecosystem. Our ecosystem consists of front-end ...

Trusscore

Full Stack Developer

Kitchener, ON · On-site

Your Mission Trusscore is seeking a mid-level full-stack developer to help build, standardize and scale our data and automation internal application ecosystem. Our ecosystem consists of front-end ...

StackandCo

\n \n \n \n \n The successful Senior Full Stack Developer will assume ownership for a diversity of greenfield projects and mentor junior developers. \n \n \n \n \n \n This role will involve adding ...

StackandCo

\n \n \n \n \n Our client is currently looking for a Full\-Stack Developer to directly work with the in\-house development team (currently 16 team members). The ideal candidate will have the desire to ...

Foci Solutions

Full Stack Developer

Ottawa, ON · On-site +1

Who Are We're Looking For We are looking for Full Stack Developers/Software Engineers to help grow our team and deliver strong project value. The ideal candidate is a developing engineer with a track ...

StackandCo

\n \n \n \n \n Our client is currently looking for a Full\-Stack Developer to directly work with the in\-house development team (currently 16 team members). The ideal candidate will have the desire to ...

StackandCo

\n \n \n \n \n Role Overview The primary responsibility of the full stack developer, in collaboration with a multidisciplinary delivery team, will be the design and development of software ...

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Showing results 21-40

All JobsMobile Full Stack Developer JobsMobile Full Stack Developer Jobs in Ontario

Mobile Full Stack Developer information

See Ontario salary details

$12.5K

$115K

$172K

How much do mobile full stack developer jobs pay per year?

As of Aug 11, 2026, the average yearly pay for mobile full stack developer in Ontario is $114,972.00, according to ZipRecruiter salary data. Most workers in this role earn between $99,000.00 and $141,000.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a mobile full stack developer?

To thrive as a Mobile Full Stack Developer, you need strong proficiency in both front-end and back-end development for mobile platforms, with expertise in languages like JavaScript, Swift, Kotlin, and frameworks such as React Native or Flutter, often supported by a degree in computer science or related field. Familiarity with databases (e.g., MongoDB, SQL), version control systems (e.g., Git), APIs, and cloud services (e.g., AWS, Firebase) is typically required, along with relevant certifications. Problem-solving, collaboration, and adaptability are crucial soft skills that enable effective teamwork and project delivery in dynamic environments. These skills and tools are essential to build robust, user-friendly mobile applications that meet business requirements and adapt to evolving technologies.

What is a mobile full stack developer?

A Mobile Full Stack Developer is a software professional skilled in both front-end and back-end development for mobile applications. They are capable of designing user interfaces, writing application logic, and managing databases or server-side infrastructure. This role requires proficiency in mobile development frameworks (like React Native or Flutter), as well as backend technologies (such as Node.js, Python, or cloud services). Mobile Full Stack Developers can take a project from initial concept through deployment, ensuring seamless integration of all components. They often collaborate with designers, product managers, and other developers to deliver robust mobile experiences.

What are some common challenges mobile full stack developers face when integrating front-end mobile applications with back-end services?

Mobile Full Stack Developers often encounter challenges ensuring seamless communication between mobile front-end interfaces and back-end APIs, especially when dealing with varying device capabilities and network conditions. They must address issues such as data synchronization, real-time updates, and maintaining consistent user experiences across platforms. Additionally, managing security and authentication between the mobile app and server, as well as optimizing performance for both client and server sides, are critical aspects of the role. Collaborating closely with designers, backend engineers, and QA teams is essential to deliver robust, scalable solutions.

What is the difference between Mobile Full Stack Developer vs Front-End Developer?

AspectMobile Full Stack DeveloperFront-End Developer
Required SkillsMobile app development, backend integration, JavaScript, React Native, Swift, KotlinHTML, CSS, JavaScript, frameworks like React or Angular
Work EnvironmentMobile app projects, cross-platform or native developmentWeb interfaces, website or web app development
Industry UsageTech, startups, app development firmsWeb development agencies, corporate websites

Mobile Full Stack Developers focus on building mobile applications with both frontend and backend skills, often working on cross-platform or native apps. Front-End Developers specialize in creating engaging web interfaces. While both roles require JavaScript and related skills, Mobile Full Stack Developers have additional expertise in mobile-specific languages and tools, making them suitable for mobile-centric projects.

Is a mobile full stack developer still in demand?

Yes, mobile full stack developers are in high demand due to the continued growth of mobile app usage and the need for integrated front-end and back-end development skills. Proficiency in frameworks like React Native or Flutter, along with knowledge of cloud services, enhances employability in this field.
What are the most commonly searched types of Full Stack Developer jobs in Ontario? The most popular types of Full Stack Developer jobs in Ontario are:
What are popular job titles related to Mobile Full Stack Developer jobs in Ontario? For Mobile Full Stack Developer jobs in Ontario, the most frequently searched job titles are:
What job categories do people searching Mobile Full Stack Developer jobs in Ontario look for? The top searched job categories for Mobile Full Stack Developer jobs in Ontario are:
What cities in Ontario are hiring for Mobile Full Stack Developer jobs? Cities in Ontario with the most Mobile Full Stack Developer job openings:
Mobile Full Stack Developer jobs near you
Infographic showing various Mobile Full Stack Developer job openings in Ontario as of August 2026, with employment types broken down into 1% As Needed, 65% Full Time, 26% Part Time, 7% Contract, and 1% Nights. Highlights an 94% Physical, 1% Hybrid, and 5% Remote job distribution, with an average salary of $114,972 per year, or $55.3 per hour.

Full Stack Developer

Quantiphi, Inc.

Toronto, ON • Remote

Full-time

Re-posted 29 days ago

Job description

While technology is the heart of our business, a global and diverse culture is the heart of our success. We love our people and we take pride in catering them to a culture built on transparency, diversity, integrity, learning and growth.
If working in an environment that encourages you to innovate and excel, not just in professional but personal life, interests you- you would enjoy your career with Quantiphi!

About Quantiphi:

Quantiphi is an award-winning, AI-First digital engineering and consulting company focused on delivering high-impact Services and Solutions that help organizations solve what truly matters. We partner with enterprises to reimagine their businesses through intelligent, scalable, and transformative AI driving measurable outcomes at the very core of their operations.

Since our founding in 2013, Quantiphi has tackled some of the world's most complex business challenges by combining deep industry expertise, disciplined cloud and data engineering practices, and cutting-edge applied AI research. Our work is rooted in delivering accelerated, quantifiable business value, not just technology for technology's sake.

Headquartered in Boston, Quantiphi is a global organization with 4,000+ professionals serving clients across key industry verticals, including BFSI, Healthcare & Life Sciences, CPG, MFG, TME etc. As an Elite and Premier partner to leading cloud and AI platforms such as NVIDIA, Google Cloud, AWS, and Snowflake, we build and deliver enterprise-grade AI services and solutions that create real-world impact.

We've been recognized with:

  • 17x Google Cloud Partner of the Year awards in the last 8 years.

  • 3x AWS AI/ML award wins.

  • 3x NVIDIA Partner of the Year titles.

  • 2x Snowflake Partner of the Year awards.

  • We have also garnered top analyst recognitions from Gartner, ISG, and Everest Group.

  • We offer first-in-class industry solutions across Healthcare, Financial Services, Consumer Goods, Manufacturing, and more, powered by cutting-edge Generative AI and Agentic AI accelerators.

  • We have been certified as a Great Place to Work for the third year in a row- 2021, 2022, 2023.

Be part of a trailblazing team that's shaping the future of AI, ML, and cloud innovation.

Your next big opportunity starts here!

For more details, visit: Website or LinkedIn Page.

Role: Full Stack Software Developer

Experience Level: 5-10 yrs

Work Location: US East/Canada (Remote)

Role Overview:

We're looking for a Full Stack Software Developer to design and build scalable, high-performance applications powering next-generation Agentic AI platforms.

In this role, you'll lead the development of API-first, distributed systems and contribute across the stack from backend microservices to modern frontend experiences. You'll partner closely with AI/ML teams to integrate LLM-driven workflows, RAG architectures, and multi-agent systems into production-grade applications.

This is a hands-on engineering role with strong ownership across architecture, developer experience, and system reliability.

Key Responsibilities:

  • Design and build scalable full stack applications using React, TypeScript, and Next.js on the frontend and Python (FastAPI) and/or Node.js on the backend

  • Architect and maintain RESTful APIs and microservices with strong versioning, backward compatibility, and API-first design principles

  • Develop distributed systems leveraging event-driven architectures, messaging systems (Kafka, Pub/Sub), and asynchronous processing

  • Build and integrate LLM-powered applications, including RAG pipelines, agentic workflows, and tool-calling frameworks (LangChain, LangGraph)

  • Collaborate with AI/ML teams to integrate model serving platforms and orchestrate multi-agent systems

  • Implement real-time capabilities using WebSockets, Server-Sent Events (SSE), or streaming frameworks

  • Ensure high-quality engineering standards across testing (TDD/BDD), CI/CD pipelines, and infrastructure-as-code

  • Deploy and manage cloud-native applications on GCP and/or Azure, leveraging Docker and Kubernetes

  • Champion observability and monitoring using logging, metrics, and tracing (e.g., OpenTelemetry)

  • Build developer-friendly tools including SDKs, documentation, and API portals

  • Mentor engineers and contribute to system design, architecture reviews, and best practices

Basic Qualifications:

  • 5-10 years of experience in full stack software development

  • Strong expertise in:

  • Frontend: React, TypeScript, Next.js

  • Backend: Python (FastAPI) and/or Node.js

  • Proven experience building REST APIs, microservices, and distributed systems

  • Hands-on experience with PostgreSQL and data modeling

  • Experience with Docker, Kubernetes, and cloud platforms (GCP and/or Azure)

  • Strong knowledge of CI/CD pipelines (GitHub Actions or similar)

  • Experience with API lifecycle management (authentication, versioning, rate limiting)

  • Solid understanding of system design, scalability, and performance optimization

  • Experience integrating or building applications with LLMs, RAG, or Agentic AI systems

  • Familiarity with LangChain, LangGraph, or similar frameworks

Other Qualifications (OQs):

  • Experience with:

    • LlamaIndex, advanced LangGraph workflows, or multi-agent orchestration

    • Prompt engineering and context engineering

    • Model Context Protocol (MCP) or agent interoperability frameworks

  • Exposure to GraphQL, gRPC, and advanced API design patterns

  • Experience with event-driven systems (Kafka, Pub/Sub, Redis)

  • Knowledge of vector databases (pgvector, Pinecone, Milvus)

  • Experience building real-time/streaming UIs (WebSockets, SSE)

  • Understanding of OAuth 2.0, OIDC, RBAC for secure systems

  • Strong testing practices (TDD, Playwright, contract testing)

  • Experience with OpenTelemetry or similar observability tooling

  • Familiarity with Domain-Driven Design (DDD) and API-first architecture

Healthcare Domain Experience (Nice to Have):

  • Experience working with FHIR R4, HL7 v2, or SMART on FHIR

  • Integration with EHR systems (e.g., Epic)

  • Understanding of HIPAA compliance and healthcare data privacy

  • Exposure to clinical workflows, CDS Hooks, or patient-facing applications

  • Experience building clinical decision support systems or healthcare interoperability solutions

What's in it for YOU at Quantiphi:

  • Make an impact at one of the world's fastest-growing AI-first digital engineering companies.

  • Upskill and discover your potential as you solve complex challenges in cutting-edge areas of technology alongside passionate, talented colleagues.

  • Work where innovation happens - work with disruptive innovators in a research-focused organization with 60+ patents filed across various disciplines.

  • Stay ahead of the curve immerse yourself in breakthrough AI, ML, data, and cloud technologies and gain exposure working with Fortune 500 companies.

If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!

Apply