At a Glance
- Tasks: Lead the evolution of a live platform and scale it for enterprise use.
- Company: Fulfillment IQ, a dynamic supply chain engineering company.
- Benefits: Competitive salary, health coverage, flexible work options, and growth opportunities.
- Other info: Join a collaborative culture that values mentorship and career development.
- Why this job: Make a real impact on global commerce with cutting-edge technology.
- Qualifications: 10+ years in cloud-native systems and experience scaling SaaS platforms.
The predicted salary is between 135000 - 165000 $ per year.
Location: Toronto (Onsite/ Hybrid)
Job Type: Full-Time
Hiring Timeline: Immediate
Reporting Line: General Manager at Zynque
Existing Vacancy: Yes
Application Deadline: Open until Filled
Salary Range: $175 - $210K CAD per year (negotiable)
About Fulfillment IQ (FIQ): Fulfillment IQ is a supply chain engineering and transformation company that helps brands, retailers, and 3PLs design, build, and scale high-performance logistics operations. We work at the intersection of strategy, operations, and technology where we solve complex, real-world problems across warehouse design, automation, order management, transportation, and end-to-end supply chain execution.
Role Overview: Zynque is FIQ's integration platform (iPaaS) for supply chain and logistics. After a year of development, it is live in production with active customers onboarding, and it now needs to grow into an enterprise-grade, high-throughput platform. This is not a greenfield role, and it is not a maintenance role. It is a scale-up role: take a young production platform and harden it into a system that enterprises trust with their operations. You will own the architecture as it evolves under real load, with real customers, while the platform keeps shipping.
Must Have:
- 10+ years building and operating cloud-native backend or platform systems
- Owned the scaling of a production SaaS or data platform through rapid customer growth: hardening, re-architecture under load, and maturing an early product to enterprise grade
- Deep hands-on experience with high-throughput distributed systems: event streaming or message queues, async processing, idempotency, retries, backpressure
- Strong performance engineering: profiling, load testing, horizontal scaling, capacity planning
- Production reliability ownership: observability, SLOs, incident management, fault-tolerant design
- Multi-tenant SaaS experience, including tenant isolation and noisy-neighbour problems
- Hands-on daily coder with founder-level ownership; comfortable in low-process, high-ambiguity environments
Nice to Have:
- Built or scaled an integration platform, ETL/data pipeline product, or API platform (connectors, transformation pipelines, webhooks)
- Kafka or similar streaming infrastructure at scale
- Supply chain or logistics systems exposure (WMS, OMS, TMS, EDI integrations)
- AI-assisted engineering workflows; AI is deeply embedded in how we build
- Experience shipping AI/LLM-driven capabilities in production (rag, generation pipeline, agentic workflows)
Key Responsibilities:
- Own technical direction and architecture evolution of a live, revenue-generating platform
- Scale throughput and reliability while customers onboard, including zero-downtime changes to running systems
- Harden the platform: tenant isolation, rate limiting, security, data integrity
- Establish observability, SLOs, and incident practices as the customer base grows
- Lead performance and capacity work ahead of demand, not behind it
- Raise engineering standards through design reviews and mentorship
- Partner with Product to balance platform investment against feature delivery
- Identify and retire scaling risks and technical debt before they compound
What Success Looks Like in the First 90 Days:
- 30: Deep command of the codebase and production topology; shipping to production; documented view of the top scaling and reliability risks
- 60: First major scaling or reliability improvements live; observability and SLO baseline established
- 90: Enterprise-readiness roadmap owned and in motion; measurable gains in throughput, latency, or stability
Key Performance Indicators (KPIs):
- Platform uptime and reliability
- Throughput and latency under growing customer load
- Customer and integration onboarding velocity
- Incident frequency and time to recovery
- Enterprise scalability readiness
Why You'll Love Working Here:
At Fulfillment IQ, we don't just build supply chain solutions. We build careers, friendships, and unforgettable experiences. We believe in giving our senior technical leaders real ownership, real influence, and the opportunity to shape platforms that power real-world logistics operations. As an equal opportunity employer, we celebrate diversity and are committed to creating an inclusive environment for all team members.
Perks you'll appreciate:
- Employee Health: Comprehensive health and dental coverage for you and your family
- Time Off: Competitive paid time off and flexible leave policies
- Retirement: Retirement savings programs and employer contributions
- Professional Growth: Dedicated learning and development budget
- Flexible Work: Remote and hybrid work options
- Perks: Equipment allowances, internet reimbursements, business travel coverage, and employee stock options (ESOP), where applicable.
- Community Engagement: Team events, meetups, and company offsites
Fulfillment IQ is a people-first company built on trust, collaboration, and ownership. We are proud to be an equal opportunity employer and are committed to building a diverse, inclusive, and high-performing workplace. We consider all qualified applicants without regard to any ground protected under the Ontario Human Rights Code.
Principal Software Engineer in Toronto employer: Fulfillment IQ
Fulfillment IQ is an exceptional employer that fosters a culture of innovation and collaboration, allowing you to take ownership of your work while building cutting-edge solutions in supply chain simulation. Located in Toronto, ON, you will enjoy a hybrid work environment, competitive compensation, and comprehensive benefits, including professional growth opportunities and a supportive team that values your contributions. Join us to make a tangible impact on global commerce and advance your career in a dynamic and inclusive workplace.
