Principal Software Engineer

This is a fully remote position, open to applicants in United States.

📋 Description

• Collaborate with and provide guidance to the teams developing Swiftly's advertising and martech platform.

• Design, code, and maintain large-scale distributed systems.

• Lead the gradual migration of campaign authoring and The Trade Desk write path off a Kotlin/Quarkus service without any downtime.

• Take responsibility for the performance and reliability of the Go ad server in accordance with strict SLOs.

• Create data contracts shared among services utilizing schema-as-code, versioned database views, transactional outbox, and projector patterns.

• Work closely with data engineering on Databricks pipelines for personalized rankings, identity resolution, and impression data feeding attribution and iROAS.

• Develop secure, auditable integrations with The Trade Desk GraphQL API, Salesforce, and creative-rendering services.

• Apply expertise in microservices architecture and database design.

• Manage production services, which includes on-call duties and incident management.

• Contribute to the architecture of a multi-tenant platform.

• Lead the migration from AKS using ArgoCD and Kustomize towards Azure Container Apps and Azure Functions.

• Establish high engineering quality standards through typing, linting, testing, security scanning, release automation, and AI-assisted development.

• Assume ownership over architectural decisions through coding, testing, and operations.

• Perform additional related tasks as assigned.

⛳️ Requirements

• Bachelor of Science in Computer Science, Computer Engineering, Mathematics, or a related field, or equivalent industry experience.

• Over 10 years of industry experience in designing, building, and maintaining large-scale software services, preferably in a multi-tenant environment.

• Proficient in writing production code in Go and Python, and experience with Kotlin or Java services.

• Strong knowledge of PostgreSQL, Kubernetes, event streaming technologies like Azure Event Hubs or Kafka, and API frameworks such as FastAPI or Quarkus.

• Experience in building and operating services on Azure and/or AWS.

• Skilled in creating low-latency, high-throughput services meeting defined SLOs, with observability via OpenTelemetry, Prometheus, Loki, Pyroscope, and Grafana.

• Proficient in CI/CD using GitHub Actions, GitOps deployments, and infrastructure as code with tools like Terraform.

• Experience in ad tech, including ad servers, DSPs like The Trade Desk, impression tracking, and campaign measurement or attribution.

• Familiarity with Databricks or Spark data pipelines.

• Knowledge of Atlas schema migrations, SQLAlchemy/SQLModel or pgx, and Azure Functions or Container Apps.

• Experience using AI coding agents in daily development.

• Candidates must have authorization to work in the U.S. without the need for current or future sponsorship.

• Preferred: experience with retail-oriented solutions and SaaS.

• Preferred: a mix of startup and large software company experience.

🏝️ Benefits

• Full-time remote work.

• Equal Employment Opportunity and Affirmative Action Employer.

• Reasonable accommodations for qualified individuals with disabilities throughout the application process.