Senior Full-Stack DeveloperValsoft Corporation • Montreal, QC, CA

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Senior Full-Stack Developer

Valsoft Corporation • Montreal, QC, CA

Il y a 8 jours

Type de contrat

Temps plein

Quick Apply

Description de poste

About ValPay

ValPay is an embedded payment solution that allows you to onboard merchants, process transactions, and effortlessly optimize your revenue without the burden of managing underwriting, compliance, and regulatory complexities that come with being a Payment Facilitator (PayFac). Our PayFac-as-a-Service model gives you all the benefits of integrated payments while we handle the heavy lifting.

About the Role

We’re looking for a Senior Full-stack Developer with 5+ years of professional experience and a passion for application development to join our engineering team in a dynamic startup environment. This is a hands-on role where you’ll build, optimize, and scale critical features across our payment systems (both front-end and back-end). You’ll collaborate closely with support, product, and design teams, contribute to architecture decisions, fix bugs, and write production-level code that moves the needle for our customers.

What You’ll Do

Design, build, and maintain scalable full-stack applications supporting Valpay’s embedded payments platform
Develop and evolve APIs, backend services, and frontend interfaces used by SaaS partners and internal teams
Work closely with Product, Customer Support, and Customer Success to translate requirements into thoughtful technical solutions
Work with APIs and payment infrastructure to integrate third-party services.
Help shape architecture and data strategy as we scale our platform.
Troubleshoot, debug, and continuously improve performance and reliability.
Ensure high standards for security, reliability, and performance in a regulated payments environment
Participate in code reviews and provide mentorship to junior developers.
Write and maintain clear technical and data documentation.
Leverage AI tools and agentic workflows to optimize your velocity.
Share your lessons learned with your teammates.

What You Bring

Core Requirements

5 years of professional experience as a backend developer with front-end experience or vice-versa, with exposure to product engineering workflows.

Proficient in most aspects of the Software Development Life Cycle (SDLC).

Proficiency with some of the technologies used in our tech stack (see below).

Technical Competencies

Strong problem-solving skills and attention to detail.

Strong experience building modern web applications and APIs

Proficiency in backend technologies (e.g., Node.js, Java, C#, or similar)

Experience with frontend frameworks (e.g., React, Angular, Vue)

Solid understanding of databases (SQL and / or NoSQL)

Experience working in cloud environments (AWS, GCP, or Azure)

Strong fundamentals in system design, scalability, and performance

Knowledge of security best practices in web development and data handling.

Bonus : experience in fintech, payments, or other regulated environments

Soft Skills & Mindset

Collaborative mindset with strong communication skills.

Excitement about fintech and a desire to work on real-world payment systems.

Self-starter attitude, comfortable with ambiguity, and eagerness to take ownership.

Hybrid work mode : on-site in Ville-Saint-Laurent office 2–3 days a week.

Continuous learning mindset and adaptability to new technologies.

Bonus Points For

Experience with payments, banking APIs, or financial compliance systems.

Familiarity with some DevOps practices and CI / CD pipelines.

Contributions to open-source projects or technical blogs.

Knowledge of financial data regulations and compliance requirements

Our Technical Stack

Frontend : React with TypeScript, Material-UI (MUI), Redux, responsive design.

Backend : Node.js, TypeScript, MongoDB, RESTful API design.

Database & Data : MongoDB, Snowflake, ETLs, SQL / NoSQL optimization.

Cloud : AWS (ECS, CloudWatch, SQS, S3, Lambda, etc.), Docker, GitHub Actions.

Testing & Quality : Jest, ESLint, SonarQube, Postman, automated tests.

AI : Cursor, ChatGPT, Devin, Copilot, Codex, Claude Code, etc.

Why Valpay

Build products that power real revenue for SaaS companies

Work on complex, meaningful technical challenges in payments and compliance

High-impact role with ownership and influence over technical direction

Collaborative, pragmatic engineering culture

Competitive compensation and benefits

Flexible, remote-friendly work environment

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Senior FullStack Developer • Montreal, QC, CA

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