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Senior Software Engineer (Fullstack) - Developer Experience & Enablement Platform

Senior Software Engineer (Fullstack) - Developer Experience & Enablement Platform

Tesco PolandKraków, Województwo małopolskie, Polska
28 dni temu
Opis pracy

Within the Developer Experience & Enablement Platform Team, we provide the trusted engineering foundation with reliable platform infrastructure, opinionated libraries & tooling, and clear architecture standards.

We’re looking for a Senior Full-Stack Engineer to help design, build, and operate customer-facing and internal platforms in a React + Node.js microfrontend ecosystem. You’ll be a technical leader within an agile, product-focused team that owns the entire lifecycle of its services - architecture, implementation, testing, deployment, observability, and on-call. You’ll collaborate closely with product owners and cross-functional partners to deliver resilient, scalable solutions that move business outcomes.

Responsibilities

  • Design & Build : Architect and implement React microfrontends with TypeScript and shared UI libraries. Develop Node.js backend services APIs and integrations with data stores (e.g. PostgreSQL, Redis). Champion accessibility, performance (Core Web Vitals), and security best practices (OWASP).
  • Operate & Improve : Own services in production with observability-first practices (metrics, logs, traces), SLOs / SLIs, alerting, and blameless post-mortems. Participate in on-call rotations, incident response, and remediation; reduce toil via automation and better design.
  • DevOps & Delivery : Implement CI / CD with GitHub Actions and GitOps workflows (declarative manifests, PR-based changes, environment promotions). Deploy and run workloads on Kubernetes, manage rollouts, configuration, and runtime concerns (resource limits, autoscaling, health checks).
  • Technical Leadership : Lead designs for complex features and cross-cutting platform capabilities; write RFCs / ADRs and drive consensus. Elevate engineering standards via code reviews, pairing, mentoring, and investing in developer experience / tooling. Collaborate closely with Product Owners and stakeholders, translating product goals into clear technical roadmaps.
  • Quality & Security : Enforce robust testing strategies (unit, integration, contract, and E2E with Jest / RTL / Cypress / Playwright). Integrate SAST / DAST, dependency scanning, and secure SDLC practices into pipelines.

Core Tech

  • Frontend : React, TypeScript, microfrontends, shared component libraries / design systems, Vite.
  • Backend : Node.js (Express) REST, PostgreSQL / Redis
  • DevOps / GitOps : GitHub Actions, containerization (Docker), Kubernetes, Argo CD (app-of-apps, environment promotions), Helm.
  • Observability : Prometheus / Grafana, Splunk, xMatters.
  • Quality : Jest, React Testing Library, Playwright

    • Qualifications

    Must-have qualifications

  • 5-8+ years of professional software engineering experience, with deep proficiency in React, TypeScript, and Node.js.
  • Strong grasp of microfrontend architecture, shared libraries, versioning, and runtime integration patterns.
  • Hands-on experience designing scalable, resilient services (caching, API design, data modeling, reliability patterns).
  • Solid understanding of CI / CD, containers, and production operations; comfortable owning services end-to-end.
  • Proficiency with testing at multiple layers and quality gates in pipelines.
  • Excellent collaboration and communication skills, with fluent English to partner closely with Product Owners and non-technical stakeholders.

    • Good-to-have

  • Kubernetes production experience (workloads, services / ingress, HPA, resource tuning), and GitOps practices with Argo CD.
  • GitHub Actions expertise (reusable workflows, environments, OIDC, secrets, matrix builds).
  • Progressive delivery (e.g., Argo Rollouts canary / blue-green).
  • Infrastructure as Code (Terraform), cloud platforms (AWS / Azure / GCP), networking fundamentals (DNS, TLS, ingress).
  • Observability stack design (metrics / logs / traces, SLOs, error budgets) and incident management playbooks.
  • Experience with performance optimization, Core Web Vitals, and front-end build pipelines at scale.

    • Tesco is a leading multinational retailer, with more than 330 000 colleagues. Our software is used by millions of people across several countries every day. Whether it’s the tills and websites our customers use, or the systems our colleagues and partners use, you’ll play your part in keeping it running like a well-oiled machine. And when a business problem pops up? You and the creative minds in our team will be challenged to solve it.

    As Tech Hub we cooperate within the group of Tesco Technology Hubs located in the UK, Poland, Hungary, Czech Republic and India.

    What our colleagues like the most at Tesco :

  • We develop our own products
  • We make an impact; large scale of operation
  • Accountability and respect are given to us
  • We cooperate and support each other
  • There are great colleagues who are divided into small teams here
  • We can develop and learn new things

    • #J-18808-Ljbffr

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