About Company:

At Delaplex, we believe true organizational distinction comes from exceptional products and services. Founded in 2008 by a team of like-minded business enthusiasts, we have grown into a trusted name in technology consulting and supply chain solutions. Our reputation is built on trust, innovation, and the dedication of our people who go the extra mile for our clients. Guided by our core values, we don’t just deliver solutions, we create meaningful impact.

Job Description:

- Lead, architect, and implement scalable backend and frontend (web and mobile) features for our serverless subscription management platform, building on AWS (Lambda, API Gateway, SQS/Step Functions) with React and React Native.
- Design and optimize data flows with Redis, Neptune (graph), and Postgres.
- Lead code reviews, set testing standards, and de-risk projects with design docs and prototypes.
- Document and integrate REST/GraphQL APIs; develop webhooks and vendor integrations (OAuth, SAML, SOAP, enterprise APIs).
- Develop and run automated QA: functional, performance, security, and cross-browser tests using Jest, Playwright, Detox.




- Support production systems and deploy hotfixes with rapid turnaround (3–8 hours).
- Partner with product and design to shape milestones and deliver iteratively.
- Add monitoring and reliability goals, troubleshoot production issues, and ship through CI/CD pipelines.
- Use AI tools (including GitHub Copilot) to accelerate development, testing, and documentation.

Responsibilities:

- 6+ years building production systems in Node.js/TypeScript and React.
- 5+ years backend serverless development (AWS Lambda, API Gateway).
- 5+ years React and React Native experience.
- 3+ years working with graph databases (e.g., Neptune).
- Solid Redis and API design skills.
- CI/CD and automated testing expertise.
- Comfortable using GitHub Copilot and other AI tools.
- Customer-first mindset and ability to challenge unclear requirements.

Nice to have:

- Experience with enterprise authentication systems (OIDC, SAML, Cognito).
- High-volume systems (1M+ hits/hour).
- Emergency production support and hotfix deployment experience.
- Infrastructure-as-code (CDK, Terraform), performance profiling, or advanced monitoring.

📌 Senior Fullstack Developer (Canada)
🏢 delaPlex
📍 Canada