Senior Full Stack Application Developer

Title : Senior Full Stack Application Developer

Salary : $110000 - $130000 Benefits Vacation (exact placement within this range will depend on skills and qualifications)

Location : Thornhill Ontario (hybrid)

Length : Full-time permanent

About Us :

At WellnessLiving we empower thousands of health and wellness business owners to turn their entrepreneurial dreams into reality. Our mission-critical software fuels their vision supporting millions of clients around the world in their wellness journeys. With a deep commitment to putting our customers first we foster a culture that values high performance adaptability and accountability. If you are a skilled professional who thrives in a fast-paced customer-focused environment and are passionate about making a meaningful impact on the health and wellness industry we would love to connect with you.

Our team is driven by four core values that shape everything we do. If you share these values and meet the qualifications outlined for this role we encourage you to apply - wed love to learn more about you!

Customer First We approach every challenge with a customer-focused lens driven by an obsession with our customers happiness and success.

Excellence We approach every task whether big or small with a steadfast commitment to exceptional execution and the pursuit of greatness.

Accountability We take full ownership of our decisions actions and outcomes both successes and failures.

Adaptability We recognize that sustained success demands that we be malleable and purposefully evolve acknowledging that the world is dynamic and constantly changing.

About the Role :

We are seeking a Senior Full-Stack Application Developer to play a key hands-on role in our microservices and domain-driven modernization journey. This role is ideal for an experienced engineer who combines strong frontend craftsmanship with backend and distributed systems thinking and has implemented (not just discussed) modern cloud-native architectures.

You will design build and evolve scalable event-driven multi-tenant SaaS applications used across multiple brands in the healthcare and fitness technology space. You will work end-to-end from React-based user experiences to secure APIs and microservices built with and Java (Spring Boot) while collaborating closely with product architecture DevOps and data teams.

This role requires direct implementation experience an ownership mindset and the ability to work effectively in an environment where systems are actively transitioning from monolithic patterns to domain-aligned microservices.

Key Responsibilities :

Full-Stack Application Development

• Design develop and maintain production-grade full-stack applications using React and Java / Spring Boot
• Build modular reusable frontend components aligned with design systems accessibility standards and responsive UX best practices
• Develop secure scalable RESTful and event-driven APIs ensuring performance reliability and backward compatibility

Microservices DDD & Event-Driven Systems

AI-Augmented Development

Required Qualifications & Experience

Nice to Have

Please note that only those selected for an interview will be contacted.

We appreciate you taking the time and look forward to reviewing your application!

WellnessLiving is proud to be an equal opportunity employer. We base employment decisions solely on qualifications experience and business needs. We do not tolerate discrimination or harassment of any kind. All qualified applicants will receive consideration without regard to race color religion creed gender gender identity or expression sexual orientation national origin disability age genetic information veteran status marital or family status or any other status protected by applicable laws.

We utilize AI to generate summaries of interview notes as part of our candidate evaluation process. This helps ensure a fair and consistent review while maintaining a human-centered hiring approach.

Required Experience :

Senior IC

Key Skills

REST,MVC,.NET,ASP.NET,Microsoft SQL Server,C#,Visual Studio,TFS,Application Development,JavaScript,XML,JSON

Employment Type : Full-Time

Experience : years

Vacancy : 1

Yearly Salary Salary : 110000 - 130000