• Build and maintain web applications using React with JavaScript/TypeScript. • Develop and maintain backend services using Python. • Work with relational/SQL databases and NoSQL databases such as MongoDB. • Implement CI/CD pipelines and maintain unit tests to ensure code quality. • Collaborate and communicate effectively across a distributed team.

Build something people love Wealthsimple's mission is to help everyone achieve financial freedom – by making financial services simple, transparent, and low-cost. We're Canada's largest fintech, trusted by over 3 million clients with more than $100 billion in assets. We move fast, we own our work, and we care deeply about the people using our products. If that sounds like you, keep reading. We're proud of what we've built — and we're just getting started. Read our Culture Manual and learn more about how we work. About the team The Platform Experience team sits as a bridge between Platform and Product engineering. We enable product teams to ship reliable code by partnering directly with developers to solve production challenges and with implementation of systematic improvements. We're central to Wealthsimple's reliability mission: when our products are reliable, clients trust us with their financial future. We focus on protecting critical flows, reducing time to detect and resolve incidents, and ensuring we learn from every issue to prevent recurrence. About the role Reporting to the Manager of Software Development, you'll work alongside a senior group of Software Developers to improve reliability across Wealthsimple's products. You'll take ownership of significant components and services, partnering with product teams to identify and resolve production issues. This role offers the opportunity to work across the full stack, contribute to platform primitives that make reliability the default, and help maintain Wealthsimple’s high standard for security, reliability and user experience. What you'll do - Partner directly with product engineers to diagnose and resolve production issues, building solutions that prevent recurrence. - Take end-to-end ownership of system components, designing with reliability and maintainability as primary concerns. - Contribute to platform tools and frameworks that help all engineers ship reliably. - Collaborate with Platform, Product, and Data partners to align technical decisions with client needs. - Help establish technical standards and best practices for development at Wealthsimple. Skills you bring - 6+ years of software development experience building products with demonstrated growth in technical scope and autonomy. - Experience in optimizing platform engineering and/or infrastructure. - Knowledge of 2 or more of the following languages: Ruby on Rails / TypeScript / Kotlin. - Experience using LLMs to drive broad changes across codebases (Claude). - Strong problem-solving skills with the ability to tackle complex issues across multiple systems and keen interest in getting to the root cause. - Experience designing and maintaining production systems with high availability requirements. - Strong communication and collaboration skills. You can explain complex technical concepts clearly and work effectively with stakeholders across different backgrounds. Why Wealthsimple? 🌸 Top-tier health benefits and life insurance 📈 Long-term group savings with employer match, through Wealthsimple for Business 🌴 20 vacation days, 4 wellness days, and unlimited sick and mental health days per year ✈️ 90 days away: work outside Canada for up to 90 days per year 👥 Employee resource groups, including Rainbow (2SLGBTQ), Women of WS, and Black at WS 🌎 We are a hybrid team with over 1,500 employees across North America. The people are one of the best parts of working here: you'll collaborate with incredibly talented, curious, and driven teammates who are deeply committed to doing great work. ICYMI Technology & Innovation at Wealthsimple: We move quickly and build thoughtfully. That means we're always looking for better ways to work — whether that's new tools, AI, or rethinking how we approach a problem. We don't expect you to have all the answers, but we do expect curiosity and a willingness to evolve alongside the products we're building. Inclusion Statement: We're building products for a diverse world, and we need a diverse team to do it well. We strongly encourage applications from everyone, regardless of race, religion, colour, national origin, gender, sexual orientation, age, marital status, or disability status. Accessibility Statement: We're committed to an accessible hiring experience. If you need any accommodations throughout the interview process, please let us know — we'll work with you to make sure you have what you need. We also welcome any feedback on how we can better accommodate candidates with accessibility needs. AI in Hiring: We may use artificial intelligence (AI) tools to support parts of our hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our team but don't replace human judgment – all final hiring decisions are made by people. If you have questions about how your data is used, reach out to us.

• Design and implement platform ‑ independent device communication middleware for connected audio and networking products • Develop backend services using Node.js and TypeScript in an agile, cross ‑ functional team environment • Implement device communication business logic in Node.js and C++ • Expose middleware functionality through GraphQL and REST APIs • Model, standardize, and abstract device interaction capabilities to provide device ‑ agnostic interfaces • Optimize middleware performance and implement appropriate security measures • Break down requirements and estimates to deliver features from concept to production • Collaborate with marketing, testing, and systems engineering teams to define use cases and requirements • Communicate effectively with technical and non ‑ technical stakeholders • As needed, extend or maintain web ‑ based UI components using Angular, TypeScript, HTML, and CSS

Job Description About You You are a backend developer who enjoys building scalable services and working with modern technologies. You are comfortable working with Node.js and Python, and you have experience developing APIs, handling real-world integrations, and contributing to systems where performance and reliability matter. You are proactive, detail-oriented, and take ownership of the solutions you deliver. You are also comfortable working in environments where AI is part of the development ecosystem, using it as a tool to improve how you build, troubleshoot, and document backend services. You Bring to Applaudo the Following Competencies: - Bachelor’s Degree in Computer Science, Software Engineering, or a related field (or equivalent experience). - 4+ years of experience in backend development. - Strong experience with Node.js (NestJS or similar frameworks). - Practical experience with Python (FastAPI or similar frameworks). - Experience designing and building RESTful APIs and microservices. - Solid understanding of backend security, authentication, and SSL. - Functional knowledge of cloud environments (Azure preferred). - Experience debugging and resolving issues in non-production environments. - Familiarity with testing practices, version control (Git), and CI/CD pipelines. - Strong analytical and problem-solving skills with attention to detail. - Ability to work collaboratively in cross-functional teams. - Strong sense of ownership and responsibility for delivered solutions. - Experience working with data processing or integrations is a plus. - Exposure to AI-assisted development tools is a plus. - Advanced English proficiency is required, as you will work directly with US-based clients. You Will Be Accountable for the Following Responsibilities: - Develop and maintain backend services using Node.js and Python. - Design and implement RESTful APIs aligned with business requirements. - Build and maintain business logic ensuring performance and reliability. - Integrate backend services with internal and external systems. - Implement authentication, authorization, and security best practices. - Troubleshoot and resolve issues in non-production environments. - Collaborate with frontend developers to ensure proper integration. - Work with QA teams to support testing and defect resolution. - Participate in agile ceremonies and team discussions. - Write clean, maintainable, and well-documented code. - Contribute to continuous improvement of backend practices and processes Qualifications - Node.js & Python - APIs & microservices - Security (auth/SSL) - Cloud (Azure) - Debugging & testing - Git & CI/CD - English (advanced) Additional Information About Us We Are Engineered Different. At Applaudo, talented people design, build, and scale meaningful, AI-powered solutions that create real business impact. As an AI-native organization, we collaborate across design, development, cloud, data, and artificial intelligence to turn ideas into scalable products that transform how companies operate, make decisions, and grow. We are building a high-performance culture grounded in five values: Empowering Excellence, Collaborative Teamwork, Unsolicited Respect, Consistent Transparency, and Efficient Communication. These define how we work, how we support one another, and how we hold ourselves accountable. Applaudo is a place for people who want to learn fast, take ownership, and work alongside strong teams they are proud to belong to. Joining us means being part of an organization that is evolving intentionally, investing in modern ways of working, and leading AI-native transformation at scale.