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Senior Frontend Software Engineer

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LumApps

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Location:
Poland; France, Kraków ▼

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Category:
IT - Software Development

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Contract Type:
Employment contract

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Salary:

Not provided
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Job Description:

As a Senior Frontend Software Engineer, you will be involved in the entire product development lifecycle - from technical design and prototyping to crafting and deploying intuitive, engaging user interfaces. You will work closely with cross-functional teams including product managers, designers, and other engineers to deliver high-quality features at scale. This role calls for a deep technical skill set, a collaborative mindset, and a willingness to mentor and guide junior team members.

Job Responsibility:

  • Develop Frontend Features: Design, implement, and maintain end-to-end features using Vue.js and JavaScript/TypeScript
  • Collaborate Across Teams: Work closely with product managers, designers, and DevOps to plan, build, and deliver customer-focused solutions
  • Ensure Frontend Reliability & Performance: Write clean, scalable code that meets high standards for performance, security, and reliability
  • Drive Best Practices: Conduct code reviews, mentor junior engineers, and promote strong testing, documentation, and maintainability practices
  • Deliver Excellent UX/UI: Build visually polished, intuitive, and highly functional user interfaces that create a seamless user experience
  • Maintain & Evolve Architecture: Contribute to architecture discussions, influence technical decisions, and help adopt new technologies and frameworks
  • Project Management: Break down feature requests into well-defined tasks and guide their implementation
  • Take Ownership: Participate in on-call rotations when needed and take operational responsibility for the services you develop

Requirements:

  • 5+ Years of Software Engineering Experience: Proven background in frontend development for modern, cloud-based applications
  • Front-End Mastery: Strong hands-on experience with JavaScript/TypeScript, Webpack or Vite, and modern frameworks such as Vue or React
  • Vue.js Foundation: Ability to build and maintain Vue.js components and navigate the Vue ecosystem
  • Excellent Communication: Effective collaboration in cross-functional teams
  • strong English skills (spoken and written)
  • Modern Frontend Operations: Familiarity with AWS/GCP environments and containerization tools like Docker and Kubernetes
  • comfortable with build, test, and deployment tooling for modern web apps
  • Product Mindset: Understands user needs and business goals
  • makes technical decisions that improve product value, usability, and overall customer experience
  • Quality Focus: Committed to code quality, testing, and continuous refactoring to maintain high engineering standards
  • Technical Leadership: Willingness to mentor junior engineers and lead technical initiatives

Nice to have:

  • Exposure to AI/ML: Familiarity with AI concepts, prompt engineering, or working with LLM integrations
  • Product-Led Growth (PLG): Understanding of PLG strategies, continuous onboarding, or experience with tools like Mixpanel, Pendo, and Hotjar
  • B2B/SaaS Experience: Experience shipping software in a SaaS environment
What we offer:
  • If you are based in France: Hybrid work model – 2 days at the office, 3 days remote
  • RTT days – ~10 extra days off per year
  • Meal vouchers (SWILE) + free snacks & coffee
  • Yoga classes - Take a mindful break in our Paris office
  • Supportive parental leave and family moments — yes, even a Christmas party for your kids !
  • Health insurance (ALAN) – 60% covered + full life & disability cover
  • Afterworks, team celebrations & seasonal parties
  • Equipment of your choice
  • French & English lessons, professional development & access to Leeto CSE
  • If you are based in Poland: Phone & Home Internet costs reimbursement up to 80 PLN/month
  • Private health care package with Luxmed – covered for you and partially for your partner / family
  • Cafeteria benefits – monthly budget to cover sport cards or other purchases
  • Creative Allowance – paid as 1000 PLN gross/month
  • Home office set-up reimbursement up to 1000 PLN
  • Personal Learning & Development Budget of 1500 USD/year
  • 26 days of annual leave/year and 2 Mental Health days off per year

Additional Information:

Job Posted:
December 10, 2025

Employment Type:
Fulltime
Work Type:
Hybrid work
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