Senior Node.js Engineer
Job description
N-iX is looking for a Senior Node.js Engineer to join a long-term project for a leading Canadian fintech company specializing in online brokerage and wealth management. Our client provides retail investors with trading platforms, mobile applications, and investment products in a regulated financial environment. You will join a product pod within the Experience Platform engineering group, where teams own their domains end to end across web, mobile, and backend services. The expanding Ukrainian team will consist of two product pods of four developers each, supported by a Team Lead and a Senior QA Engineer. This role focuses on Node.js and TypeScript, with contributions to React and React Native features. You will influence architectural decisions, lead technical initiatives, and help build reliable, scalable financial products.
Responsibilities
- Design and develop Node.js/TypeScript services and RESTful APIs within a microservices or service-oriented architecture.
- Lead the technical design and delivery of complex features, documenting architectural decisions and trade-offs.
- Build and maintain web and mobile features using React and React Native.
- Work with product partners to break down complex, ambiguous problems into manageable delivery increments.
- Own performance and scalability within your domain: identify bottlenecks, optimize database queries, and improve services under production load.
- Set and uphold engineering standards for code quality, testing, security, observability, and operational readiness.
- Mentor developers through code reviews and pair programming.
- Collaborate with Product, UX, Enterprise Architecture, and Security teams to deliver resilient, scalable, and compliant solutions.
- Participate in incident response and on-call rotations, and follow through on actions from blameless post-incident reviews.
- Explore and adopt AI tools that improve developer productivity.
Requirements
- 6+ years of software engineering experience, including 5+ years with Node.js and TypeScript.
- 1+ year of commercial experience with React and/or React Native.
- Experience designing RESTful APIs and working with microservices or service-oriented architectures.
- Hands-on experience with relational and/or NoSQL databases, including query performance tuning.
- Experience with cloud platforms; GCP is preferred, while AWS or Azure experience is also welcome.
- Practical experience with CI/CD tooling and containerized workloads.
- Experience leading technical initiatives involving multiple developers, without relying on formal management authority.
- Strong communication skills and the ability to explain technical trade-offs to engineering and cross-functional audiences.
- English proficiency sufficient for effective collaboration with an international team.
- A degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience.
Nice to have:
- Experience in financial services, brokerage, trading, or other regulated environments.
- Experience with WebSockets, Apache Kafka, or Google Pub/Sub, particularly for real-time streaming and low-latency systems.
- Knowledge of Kubernetes, Terraform, or other infrastructure-as-code tools.
- Knowledge of secure development practices, threat modeling, or DevSecOps.
- Experience building AI/ML-enabled features.
- Experience with Claude Code or other AI-assisted development tools.
- Experience with Angular.
We offer*:
- Flexible working format - remote, office-based or flexible
- A competitive salary and good compensation package
- Personalized career growth
- Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
- Active tech communities with regular knowledge sharing
- Education reimbursement
- Memorable anniversary presents
- Corporate events and team buildings
- Other location-specific benefits
*not applicable for freelancers
Skills mentioned
N-iX is a global software solutions and engineering services company that empowers the world's leading organizations to transform challenges into lasting business value. For our customers, navigating the complexities of the digital landscape to achieve operational efficiency and revenue growth is a constant priority. That's why we focus on delivering tangible outcomes through advanced technology. We understand that businesses in sectors like finance, manufacturing, supply chain, retail, and healthcare face unique hurdles. Whether it's modernizing legacy systems, harnessing the power of data, or building innovative products from the ground up, our clients trust us to provide the expertise needed to succeed. We act as a strategic partner, helping them not just to solve immediate tech problems but to build a foundation for future growth and innovation. Our approach is rooted in a deep understanding of our clients' industries and business objectives. We don't just write code; we co-create solutions that drive real-world impact. For over two decades, we have been the trusted partner for numerous tech companies, Fortune 500 leaders, and enterprises of all sizes. This long-standing experience allows us to anticipate market shifts and proactively develop expertise in emerging areas like cloud computing, data analytics, AI/ML, IoT, and cybersecurity. Our Technology Office, a dedicated consulting unit, provides strategic guidance to ensure our clients are not just keeping up with technology trends, but are leveraging them for a competitive advantage. By building strong, collaborative relationships and fostering a culture of ownership and innovation, we ensure that every project we undertake is treated as our own, delivering maximum value and driving our clients' success.
Apply for this job
Use the application link supplied with this listing to apply to N-iX. Check the destination before entering personal information.