Senior Software Engineer

Responsibilities: Deliver features end-to-end across the Synapse stack: React/Vite frontend, Node.js/Express/Apollo GraphQL backend, MongoDB/Elasticsearch data layer, and the surrounding Kubernetes deployment. Operate AI coding tools (Claude Code, agentic workflows, LLM-assisted code review) as a first-class part of the workflow — write effective prompts, critically evaluate AI-generated diffs, and know when to override the model. Contribute to HL7 v2 / FHIR / immunization data pipelines, including Kafka-based ingestion and Elasticsearch indexing. Instrument new work with structured logging (Pino), OpenTelemetry tracing, and Prometheus metrics; debug across the Grafana / Tempo / Loki / Pyroscope stack. Handle PHI safely — apply secure coding practices, use PII-safe span attributes, and flag security concerns during code review. Participate in code review, both giving and receiving; provide constructive feedback on correctness, security, and observability. Work independently on defined features and escalate blockers early; drive small-to-medium initiatives from concept to completion. Troubleshoot across the deployment path: application code, MongoDB/Elasticsearch, Kafka consumer, and the Kubernetes / Helm / ArgoCD / Kargo pipeline. At Harris, we believe great people build great software. We offer an environment where employees are empowered to make a real impact, grow their skills, and shape their careers. Our teams enjoy a supportive, award‑winning culture, a casual and collaborative workplace, and opportunities to learn from a diverse group of businesses and industries. We are financially strong and proudly part of Constellation Software Inc. (CSI), the largest software company in Canada, providing long‑term stability alongside entrepreneurial autonomy. In addition to a competitive compensation and benefits package, we offer meaningful perks, flexibility, and—most importantly—a culture that values people, curiosity, and having fun while doing great work. Follow us on LinkedIn to learn more about our culture, values, and career opportunities. Harris is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability. Applicants who require a reasonable accommodation due to a disability may contact us by email at HarrisTalentAcquisition@harriscomputer.com. Accommodation requests may be made at any time. This email address is dedicated solely to accommodation requests and cannot be used to inquire about application status. Know Your Rights Poster EO 13496: Notification of Employee Rights under Federal Labor Laws Our commitment to fair and equitable hiring. As part of our recruitment process, we use artificial intelligence (AI) tools during the initial screening phase to help identify candidates whose qualifications most closely align with the requirements of the role. This technology supports efficiency and consistency in the early stages, but it never replaces human judgement. All subsequent evaluations and final hiring decisions are made by our recruitment professionals. AI does not make final hiring decisions.