Sr Delivery Engineer | Citylink Systems

Senior Delivery Engineer

Location: Toronto, 5 days on site

Engagement: Contract

Openings: 1

Overview We are seeking a Senior Delivery Engineer to serve as a critical bridge between product, engineering, and client-facing teams to ensure seamless delivery and integration of Fiserv’s Embedded Finance platform capabilities. This role blends deep technical expertise with execution leadership, enabling scalable integrations, stable environments, and predictable delivery outcomes across complex partner ecosystems. You will be accountable for technical delivery readiness, integration quality, and ecosystem stability, ensuring that platform capabilities are implemented, adopted, and operated with confidence by both internal teams and external partners.

Responsibilities

Lead and support technical integrations across the Embedded Finance ecosystem, ensuring reliable and scalable delivery.
Serve as a subject matter expert on platform architecture, APIs, and integration patterns.
Partner with Product, Engineering, and Program teams to translate requirements into executable technical solutions.
Support implementation, configuration, and customization of platform capabilities across environments.
Own the creation, upgrade, and maintenance of development, UAT, CERT, and PERF environments.
Support build and release cycles, proactively communicating impacts and minimizing delivery risk.
Perform scheduled software upgrades and support configuration changes across integrated systems.
Troubleshoot CI/CD pipeline issues and support source control best practices.
Lead root cause analysis and resolution of partner integration issues.
Participate in technical design reviews and application requirement analysis.
Support testing execution (functional, integration, and regression) and documentation.
Ensure system stability during live and post-live implementations, including remote client support when required.
Define and promote best-practice API integration patterns that unlock new capabilities and monetization opportunities.
Document integration requirements and map them to technical API specifications.
Create clear technical documentation, procedures, and tutorials to support adoption.
Train internal teams and external partners on platform features, integrations, and delivery practices.
Act as a trusted technical partner across Product, Engineering, Program Management, and Client teams.
Communicate complex technical concepts clearly to both technical and non-technical stakeholders.

Required Skills and Experience

Strong background in financial services, banking platforms, or complex enterprise ecosystems (Banking Experience Required).
8–13 years of relevant experience in software delivery, integration engineering, or technical product implementation.
Deep experience with API integration and troubleshooting using REST and JSON standards.
Proven ability to read and understand GoLang code to identify bugs and perform deep-tier troubleshooting.
Hands-on experience with Postman, GitLab, CI/CD pipelines, and source control management.
Deep understanding of the Software Development Life Cycle (SDLC) and Agile methodologies.
Strong experience with software configuration, environment management, and release processes.
Demonstrated ability to lead root cause analysis and resolve complex partner integration issues.
Bachelor’s degree in Computer Science, Software Engineering, or a related technical field.
Strong analytical, problem-solving, and communication skills to manage cross-functional delivery models.

Preferred Qualifications

Experience navigating technical delivery readiness for large-scale "Go-Live" windows in a banking environment.
Proven track record of creating technical enablement materials that accelerate partner adoption.
Familiarity with financial security compliance and data encryption practices within an API ecosystem.
Experience with production operational best practices and identifying integration issues early in the delivery cycle.