Frontend Tech Lead
Ultimate.ai
Kraków, Poland
Job Description
Join us at Zendesk, where we're on a mission to power exceptional service for every person on the planet. We're accelerating that ambition by building products rooted in AI, automation, and intelligent customer experiences, because behind every interaction lies an opportunity to make a human connection.
We’re seeking a Frontend Tech Lead (Staff Software Engineer) to join the Workforce Management product team - Zendesk’s AI-powered solution for forecasting, scheduling, and agent performance tracking. In this role you’ll design and deliver scalable interfaces that power features used by thousands of customers and millions of end users, helping organizations optimize workforce efficiency through reliable, data-driven automation.
What you’ll be doing
Lead design and delivery of scalable, maintainable frontend systems using JavaScript (ES6+), React, Redux, and TypeScript across the Workforce Management product.
Define and evolve frontend architecture, best practices, and component libraries that power multiple teams and products (including monorepo patterns and design system integration).
Drive performance, accessibility, and quality improvements — set performance budgets, optimize rendering and bundle sizes, and implement robust testing (unit, integration, E2E).
Own complex features end-to-end: translate product requirements into technical designs, estimate, implement, and validate in production.
Mentor and coach engineers across the squad and adjacent teams; raise the bar on code quality through thoughtful code reviews and shared learning.
Collaborate closely with Product, UX, Data Science (AI/forecasting), and Backend teams to ensure frontend solutions meet functional and non-functional requirements.
Proactively identify and reduce technical debt; propose and lead cross-team initiatives to improve developer productivity and product reliability.
What you bring to the role
8+ years of professional software engineering experience, with 5+ years focused on frontend development using React and TypeScript.
Deep, hands‑on experience building modern web applications with JavaScript (ES6+), React, Redux (or comparable state management), and TypeScript.
Strong track record of delivering large, complex features and influencing frontend architecture in high‑scale products.
Solid experience with testing frameworks (Jest, RTL), performance tooling, and observability for frontend systems.
Demonstrated ability to mentor engineers, lead technical discussions, and make pragmatic tradeoffs between speed and long‑term maintainability.
Excellent communication skills — you can explain technical concepts to engineers, product managers, and designers.
A customer-first mindset and curiosity for how frontend choices impact user outcomes (UX, accessibility, reliability).
Demonstrated history of mentoring engineers and influencing engineering practices across teams.
Preferred Qualifications
Experience with Styled Components, Ant Design, or other component libraries and design systems.
Experience working in a monorepo (e.g., Yarn workspaces, Lerna, Nx) and contributing to shared frontend packages.
Familiarity with GraphQL, observability tooling, and performance budgeting.
Prior exposure to AI/ML-backed products or workforce management / contact center domains.
Experience contributing to or managing design systems at scale.
Our tech stack
Backend: Go, PHP, Laravel
Frontend: JavaScript, TypeScript, React, Redux
Data & APIs: PostgreSQL, MySQL, ClickHouse, Kafka, Redis, REST, GraphQL Cloud & Infra: AWS, Terraform, Docker, Kubernetes, Spinnaker
Monitoring & Observability: Datadog, Sentry
What You’ll Get from Us
The opportunity to grow by tackling challenging problems and driving high-impact software initiatives.
Collaboration with a team of passionate individuals who enjoy what they do and are always willing to help.
Freedom to innovate – bring your ideas, experiment, and make a real impact.
A global, collaborative work environment where you can connect with amazing people worldwide.
... and all the benefits to support your well-being and work-life balance:
Flexible working hours and flexible, hybrid environment (we work two days per week from our amazing Kraków office).
Extended Stay Program (you can work up to 90 days outside of your country of jurisdiction).
Employment Contract with Competitive Salary and IP Tax Relief.
Professional Development Funds and internal training to help you develop new skills and grow your career.
Premium medical insurance (including dental & physiotherapy) plus private life insurance.
Well-being package (incl. Employee Assistance Program and Mental Health Support as well as Additional Days Off).
Family-Forming support: 16 weeks of paid paternity leave and inclusive fertility and hormonal health benefits via Carrot Fertility.
Competitive benefits package designed to support your lifestyle - including access to MyBenefit platform with multiple MultiSport Card Options.
Long-Term Incentives: LTIP Bonus as well as Recharge Leave - 4 weeks of paid leave following 5 years of continuous service.
… and all the in-office perks such as lunches, massage sessions, specialty coffee etc.
Hybrid: In this role, our hybrid experience is designed at the team level to give you a rich onsite experience packed with connection, collaboration, learning, and celebration - while also giving you flexibility to work remotely for part of the week. This role must attend our local office for part of the week. The specific in-office schedule is to be determined by the hiring manager.
The intelligent heart of customer experience
Zendesk software was built to bring a sense of calm to the chaotic world of customer service. Today we power billions of conversations with brands you know and love.
Zendesk believes in offering our people a fulfilling and inclusive experience. Our hybrid way of working, enables us to purposefully come together in person, at one of our many Zendesk offices around the world, to connect, collaborate and learn whilst also giving our people the flexibility to work remotely for part of the week.
As part of our commitment to fairness and transparency, we inform all applicants that artificial intelligence (AI) or automated decision systems may be used to screen or evaluate applications for this position, in accordance with Company guidelines and applicable law.
Zendesk is an equal opportunity employer, and we’re proud of our ongoing efforts to foster global diversity, equity, & inclusion in the workplace. Individuals seeking employment and employees at Zendesk are considered without regard to race, color, religion, national origin, age, sex, gender, gender identity, gender expression, sexual orientation, marital status, medical condition, ancestry, disability, military or veteran status, or any other characteristic protected by applicable law. We are an AA/EEO/Veterans/Disabled employer. If you are based in the United States and would like more information about your EEO rights under the law, please click here.
Zendesk endeavors to make reasonable accommodations for applicants with disabilities and disabled veterans pursuant to applicable federal and state law. If you are an individual with a disability and require a reasonable accommodation to submit this application, complete any pre-employment testing, or otherwise participate in the employee selection process, please send an e-mail to peopleandplaces@zendesk.com with your specific accommodation request.
