Expereo
Expereo
Expereo is a global connectivity solutions provider helping businesses manage reliable, secure networks across multiple regions. Its services include Fixed Wireless Access and Low Earth Orbit internet, supported by AI-driven traffic optimization and proactive network monitoring. By combining connectivity services with global partnerships and network-management expertise, Expereo helps organizations address the operational demands of increasingly connected business environments.

Senior Full-Stack Engineer – Hybrid Poland

Build Expereo’s React and Node.js platform for quoting, ordering, and service activation. Develop Salesforce integrations and operate production services on AWS.

Description

  • Develop and operate Expereo’s digital products for customers and commercial and service operations teams, including React interfaces, service layers, and integrations.
  • Deliver expereoOneNext features from user discovery through production deployment.
  • Own React and TypeScript front ends, covering component architecture, state management, data retrieval, caching, and performance.
  • Convert commercial and operational needs into reliable, production-ready user experiences.
  • Maintain shared components, consistent implementation patterns, and a unified design language.
  • Develop REST and GraphQL service layers from contract-first OpenAPI specifications.
  • Build and support Salesforce and core-system integrations.
  • Implement authentication and authorization while maintaining versioned, backward-compatible interfaces.
  • Work with C#/.NET integration points and understand their implementation requirements.
  • Configure, deploy, monitor, and operate owned AWS services alongside DevOps engineers.
  • Apply feature flags, create automated tests, and support CI quality gates.
  • Investigate and resolve production problems affecting ordering and activation workflows.
  • Maintain API specifications, architecture decision records, and integration documentation.
  • Work closely with product owners, quote management, service operations, architects, and engineering teams.
  • Contribute to design and sprint reviews, technical decisions, code reviews, and onboarding.

Requirements

  • At least five years of professional software engineering experience, with production React and TypeScript as your primary front-end stack.
  • Professional experience building and running Node.js and TypeScript services.
  • Production experience implementing and consuming REST or GraphQL APIs, using contract-first OpenAPI in practice.
  • Experience configuring, deploying, monitoring, and operating software in a managed cloud environment with CI/CD.
  • Strong engineering practices including testing, code review, Git, feature flags, and reproducible builds.
  • Comfort working across multiple languages, including the ability and willingness to read, understand, and write C#/.NET at integration points.
  • Experience integrating Salesforce, including familiarity with its data models and APIs.
  • Hands-on AWS experience with services such as Amplify, Lambda, API Gateway, Cognito, and S3, or equivalent services.
  • Practical experience with OAuth2 and OIDC, including scopes and token lifecycles.
  • Exposure to C#/.NET backend development.
  • Experience with event-driven or asynchronous integrations using queues, SQS, EventBridge, Kafka, or similar technologies.
  • Front-end architecture experience spanning more than one application, such as micro front ends or module federation.
  • Experience with DDD, CQS, event-driven architecture, C4 diagrams, ADRs, integration guides, or internal sales, quoting, and order-management tools is welcome but not required.
  • Background in connectivity, SD-WAN, SASE, or network platforms is useful but not required.

Benefits

  • Join an engaged, accountable team that takes ownership and has a direct connection to commercial outcomes.
  • Work directly with production systems, real data, and decision-makers without unnecessary process layers.
  • Gain exposure to advanced technologies and large-scale global networks.
  • Build knowledge that supports progression toward senior technical execution responsibilities.
  • Competitive compensation and local benefits.
  • Hybrid working arrangement.
  • Expereo is an equal-opportunity employer that supports and celebrates employees across backgrounds, religions, nationalities, sexual orientations, ages, and physical conditions.

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