Hybrid Senior Software Engineer – Full Stack

at Expereo

• Job title: Senior Software Engineer – Full Stack
• Job type: Full Time
• Experience level: Senior
• Salary: Not specified
• Degree requirement: Bachelor's Degree
• Tech skills: Angular, AWS, Azure, Babel, Cloud, Cypress, Distributed Systems, Google Cloud Platform, GraphQL, JavaScript, Jest, Microservices, Node.js, Python, React, Redux, TypeScript, Vue.js, Webpack, Go
• Location requirements: Hybrid, Katowice, Poland

About the role

• Senior Software Engineer developing full stack solutions for Expereo, the largest provider of managed internet and cloud connectivity. Leading engineering practices and mentoring teams in a hybrid setup.

Responsibilities

• Design and build modern frontend and backend applications
• Mentor engineers and shape engineering best practices
• Contribute to a truly programmable, automated digital platform
• Ensure applications meet the highest standards of performance, security, accessibility, and reliability
• Lead automated testing across unit, integration, contract, and end to end layers
• Implement observability in both frontend and backend systems
• Champion reliability engineering practices and performance optimization
• Contribute to and evolve CI/CD pipelines, build tooling, infrastructure automation, and quality gates
• Drive engineering standardization across STOs
• Partner with designers, architects, product managers, and engineers to deliver new capabilities

Requirements

• Must Have
• Strong proficiency with JavaScript & TypeScript and backend languages (Node.js preferred; Python or Go beneficial).
• Expertise in modern frontend frameworks (React, Vue, or Angular).
• Knowledge of componentbased architecture, statemanagement patterns (Redux, Zustand, Vuex, etc.).
• Experience building and consuming REST, GraphQL, streaming/eventdriven APIs, and microservices.
• Familiarity with modern build tools (Vite, Webpack, Babel) and CI/CD pipelines (GitHub Actions, GitLab, Azure DevOps, etc.).
• Experience with CSS frameworks (Tailwind, Bulma, MUI, Chakra).
• Strong understanding of automated testing (Jest, Cypress, Playwright).
• Solid grounding in accessibility (WCAG), security best practices, observability, and performance tuning.
• Experience with cloud environments (AWS, Azure, or GCP).
• Nice to Have
• Exposure to agentic AI, datadriven UI architectures, or AIpowered developer tools (Cursor, Claude Code, Copilot).
• Experience with design systems, component libraries, or Storybook.
• Familiarity with programmable networks, observability tooling, or network automation concepts.
• Experience with lowcode platforms (Mendix, Salesforce).
• Understanding of advanced security practices (CSP, threat modeling, RBAC patterns, dependency scanning).
• Experience in distributed systems or eventdriven architectures.
• Mindset
• Strong ownership mentality and a builder mindset.
• Codefirst and automationfirst approach to solving problems.
• Eagerness to work across the full stack and continuously learn.

Benefits

• What We Offer
• A dynamic, international work environment with growth opportunities
• Exposure to cutting-edge technologies and large-scale global networks
• Learning and development support to build your career in product management
• Competitive compensation and benefits
• Private Healthcare Plan
• Pension Plan
• Hybrid working
• 25 days Holiday
• **Beyond the Job**
• We’re proud of our focus on __Environment, Social and Governance__ as well as the passion we display for the communities where we live and work.
• EEO (Equal Employments Opportunities) Statement:
• Expereo is an Equal Opportunities employer who aims to support and celebrate every employee that comes through our doors. We respect and support all of our people regardless of background, religion, nationality, sexual orientation, age, or physical condition.