Senior Backend Developer, Integrations

Join nesto - proudly named Canadian Rocketship 2025*. A Deloitte Fast 50 company evolving alongside Canada s top tech innovators and disrupting a 2.1 Trillion-dollar mortgage industry at light speed by building the mortgage ecosystem of the future. BUILD lending technology with the best developers, AI engineers, and mortgage experts in the country. Work on a modern tech stack and a development framework designed to unlock your full potential and accelerate your career. Why join us • Hypergrowth: Deloitte Fast 50 - 3 years in a row • Tech community credibility: TechTO Canadian Rocketship 2025* • Industry leadership: CLA Lending Company of the Year - 4 consecutive years • Talent magnet: CMP Top Mortgage Employer 2025 • Trusted technology: powering major financial institutions across Canada • An entrepreneurial culture built on trust, speed, uncomfortable ambition, being stronger together, and a relentless obsession with our clients. About this role As a Senior Backend Developer, Integration, you will play a dual role as a strong backend engineer and a confident, customer-facing technical partner.In this role, you ll have significant customer exposure, where strong communication, credibility with technical audiences, and comfort operating under pressure are just as important as solid engineering fundamentals. You ll work within nesto s Delivery organization on complex integrations with banks and other partners, collaborating closely with Solution Architects and Business Analysts/Consultants throughout the full project lifecycle, which spans the planning, design, implementation, and production support of our Canada's most advanced cloud-based mortgage technology (SaaS). Early in projects, you ll spend more time in customer meetings, leading and participating in technical sessions with architects, backend developers, and sometimes business stakeholders to design and align on integration approaches. As the work progresses, your focus will shift toward hands-on backend development to implement and maintain these integrations. In go-live and integration phases, you ll again be on the front line with customers, supporting testing, debugging, and turning integrations on in production. Who are you We are looking for a hands-on technologist with a strong background in backend development, a passion for solving complex puzzles, and excellent communication skills essential for helping customers' integrations succeed. About nesto and Nesto Cloud nesto is Canada s leading provider of mortgage technology and financing solutions, managing $73B+ CAD in residential and commercial mortgages, with 1,000+ team members across 12 offices nationwide. You will be working on Nesto Cloud, Canada s most advanced cloud platform, delivering end-to-end technology solutions for lenders in the digital age. Why we are hiring We deliver on our mission by empowering our partners to improve and streamline their mortgage lending operations with the nesto Mortgage Cloud. As Canada's most advanced cloud-based mortgage technology, our SaaS solution offers a best-in-class omnichannel experience. This platform consistently drives volume, boosts productivity, and lowers technology costs. To drive the execution of our upcoming projects, we are hiring Senior Backend Developers. Work location and time zone We welcome candidates from all Canadian provinces, provided they are willing to adjust their schedule to adhere to the core 9:00 AM - 5:00 PM EST workday. This strict adherence is necessary to ensure consistent availability for critical customer meetings, which occur frequently. This is a fully remote opportunity, offering the flexibility to work from home or from any of our offices (Montreal, Quebec City, Calgary, Toronto, Vancouver, and others). What success in this role looks like • You consistently deliver high-quality, efficient, and well-tested code, maintaining the high standards of a strong coder with minimal bugs or rework needed after peer review. • You proactively keep internal stakeholders fully informed on project progress, escalate potential issues strategically, and provide clear, actionable debriefs to the team following customer calls. • You handle customer interactions confidently under pressure, leading technical discussions with authority and using precise language to protect the company's interests while fostering strong client trust. What you ll be doing • Participate in and sometimes lead technical integration sessions with our customer development teams, providing expert advice and hands-on support regarding how to integrate with our platform throughout the integration lifecycle. • Develop detailed technical specifications for integrations between our platform and our B2B customers' backend systems (including API and event mappings, data flows, etc). • Design, implement/code, test, and deploy custom integrations, connectors, or extensions when customer requirements go beyond standard product capabiliti...