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Lead Backend Developer (Java/Spring Boot, API Architecture)

Church and Wellesley, City of Toronto💼 Full-time💰 $160,160–$170,560🗓 2026-06-11 → 2026-08-07

Core

Designing scalable backend services, REST APIs, and enterprise integrations for insurance industry systems.

Role type

Lead Backend Developer (Java/Spring Boot)

Builds

Scalable services, modern APIs, and enterprise-wide integrations

Domain

Insurance / Financial Services

Deliverable

production ML models | product features | infrastructure

Required skills

Java, Spring Boot, RESTful API design, service orchestration, distributed systems integration, stateless service design, API contract definition, observability (logging/tracing/monitoring), rules engines, batch systems

Preferred skills

Pricing engine development, banking systems knowledge, complex business logic orchestration

Technologies

Java, Spring Boot

Responsibilities

Design and review backend services and REST APIs, Lead orchestration of multiple upstream services, Guide team on scalable, stateless service design, Define API contracts, error handling, and resiliency patterns, Support developers with design decisions and troubleshooting, Partner with BA on translating business rules into technical solutions, Ensure code quality, standards, and delivery timelines

Seniority

Senior, hands-on IC

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