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Senior Software Engineer

Senior Software Engineer

WalkwayVitoria-Gasteiz, Basque Country, SPAIN
Hace 3 días
Descripción del trabajo

About Walkway

Walkway is on a mission to revolutionize the tours and activities industry with AI-driven revenue intelligence. We empower operators with data-rich insights, competitive benchmarking, and dynamic pricing solutions to help them stay ahead in a rapidly evolving travel landscape. As a Senior Software Engineer, you'll play a pivotal role in building and enhancing our data-intensive SaaS platform, delivering real-time analytics, automated pricing recommendations, and seamless user experiences.

About the Role

Please note that we're a US-based company, so this position will be under a contractor agreement.

We're hiring a Senior Software Engineer with a strong backend focus who can still navigate the full stack when needed. You'll own core services (pricing, data ingestion, auth / permissions), shape our architecture, and partner with the founders on roadmap and trade-offs. This role is ideal for a self-starter who enjoys moving from design → code → production and can lead by example.

Beyond coding, you'll drive engineering initiatives, collaborate with co-founders, product and data teams, and support other developers. You'll ensure our application remains performant and scalable as we handle large data sets, complex filtering logic, and real-time updates for customers.

What You'll Do

1. Backend & Platform

  • Design and implement services in Node.js / NestJS (TypeScript) running on GCP (Cloud Run, Cloud SQL / Postgres, Pub / Sub, Cloud Storage, VPC).
  • Build and evolve multi-tenant SaaS primitives : RBAC, org / workspace models, JWT / OAuth auth flows, API keys, rate-limiting.
  • Ship reliable REST (and / or GraphQL) APIs with versioning, pagination, idempotency, and strong contracts.
  • Build background workers & schedulers for pricing jobs, data ingestion, and sync tasks (Pub / Sub / queues, cron).
  • Performance engineering : caching strategies (e.g., Redis), query optimization, profiling, hot-path tuning.
  • Observability : metrics, tracing, structured logs (OpenTelemetry, Cloud Logging / Monitoring, Sentry).
  • Secure by default : least-privilege IAM, secrets management, encryption in transit / at rest, audit trails, PII handling, SOC2-friendly habits.

2. Data & Integrations

  • Integrate with OTA / partner APIs; design resilient adapters, retries, backoff, and data quality checks.
  • Model data for analytics workloads; collaborate with data science on the pricing engine and evaluation loops.

    • 3. Architecture & Leadership

  • Co-drive the roadmap and architecture decisions (domain boundaries, service decomposition, buy vs build).
  • Set engineering standards, review PRs, mentor teammates, and unblock delivery.
  • Balance velocity with reliability, cost, and long-term maintainability

    • 4. Performance and Scalability

  • Optimize data-fetching flows and caching strategies to minimize latency and network overhead.
  • Identify bottlenecks in frontend or backend, propose architectural improvements, and ensure smooth scaling under high traffic.
  • Collaborate with DevOps / Infrastructure teams for CI / CD, monitoring, and alerting setups; potentially work with Google Cloud, AWS, or Vercel.

    • 5. Team Leadership & Collaboration

  • Lead engineering initiatives—work with the CTO and other senior engineers to define technical direction
  • Mentor other developers, conduct code reviews, and promote best practices in clean, testable code.
  • Break down product requirements or complex technical tasks into achievable sprints, providing accurate estimates.

    • 6. Frontend touchpoints (as needed)

  • Contribute to Next.js / React endpoints / components when integration or contract changes require it.

    • Our stack (you don't need all of it)

  • TypeScript, Node.js, NestJS
  • Postgres (Cloud SQL), Prisma / Knex (or similar), Redis (or Memorystore)
  • GCP : Cloud Run, Pub / Sub, Cloud Storage, Cloud Scheduler, IAM, VPC
  • Next.js / React (for UI)
  • Terraform (nice to have), GitHub Actions, Sentry, OpenTelemetry

    • Requirements

  • 6+ years building production software; at least 3+ years leading / owning backend services.
  • Expert in Node.js / TypeScript and a framework such as NestJS; strong SQL and Postgres fundamentals (modeling, indexing, migrations, locks, performance).
  • Hands-on GCP experience (or AWS / Azure with willingness to adopt GCP).
  • Proven SaaS chops : RBAC, JWT / OAuth, API design, multi-tenancy, background jobs, rate limiting, feature flags, A / B testing.
  • Security & reliability mindset : secrets management, least-privilege IAM, auditability, SLO / SLI thinking.
  • Comfortable with CI / CD, Docker, and production debugging / observability.
  • Clear communicator who enjoys owning problems end-to-end and participating in roadmap / architecture.

    • Nice to have

  • Experience with pricing / revenue systems or marketplace dynamics.
  • Data / ML adjacent experience (evaluation pipelines, offline / online experimentation).
  • Experience with data stores beyond Postgres (BigQuery, DuckDB, Elasticsearch).
  • Terraform / IaC, Kubernetes, or cost-optimization on GCP.

    • Why Join Walkway

  • Shape the Future of Travel : Influence architecture decisions on a high-impact, AI-driven SaaS platform (we recently won an Award!)
  • Collaborative Culture : Work in a supportive, innovative environment that values continuous learning and open communication
  • Growth & Ownership : As a senior engineer, you'll have the autonomy to guide projects from concept to production

    • If you're based in Europe, North America, or Latin America, don't hesitate to reach out!

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