Senior Golang Software Engineer
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 Senior 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 backend systems that power features used by thousands of customers and millions of end users, helping organizations optimize workforce efficiency through reliable, data-driven automation.
You will play a critical role in shaping the operational excellence of our WFM backend - developing our codebase, taking part in implementation decisions, mentoring engineers, and ensuring our services remain fast, resilient, and maintainable at scale.
What you’ll be doing
Design, implement, test, and maintain backend services in Go that power Workforce Management features used by customers at scale.
Own components through the full SDLC: participate in discovery, estimate and plan work, deliver features, and support them in production.
Collaborate closely with product managers, SREs, QA, and other engineers to translate requirements into reliable, maintainable solutions.
Write clear, well-tested code and perform thoughtful code reviews that raise team quality and share knowledge.
Help identify and reduce technical debt by breaking complex problems into manageable tasks and proposing pragmatic improvements.
Monitor and troubleshoot production issues, improve observability, and contribute to incident response and postmortems.
Mentor and coach more junior engineers, share best practices, and contribute to a positive, inclusive team culture.
What you bring to the role
5+ years professional software engineering experience with 3+ years building backend services (microservices/distributed systems).
Strong proficiency in Go (Golang) and Go testing practices; comfortable with containerized development using Docker.
Solid experience with relational databases (PostgreSQL or MySQL) and designing efficient data access patterns.
Practical cloud experience (AWS preferred) and familiarity with CI/CD pipelines and infrastructure-as-code concepts.
Working knowledge of distributed systems concepts (consistency, timeouts/retries, backpressure) and patterns for reliable services.
Experience with event-driven architectures and message systems (Kafka or similar) and designing robust REST APIs and integrations.
Excellent communication skills, a collaborative mindset, and a focus on mentorship and continuous improvement.
Preferred qualifications
Experience with PHP/Laravel or working alongside PHP-based services.
Familiarity with analytical databases such as ClickHouse.
Experience with observability and error-tracking tools (Datadog, Sentry) and proactive monitoring practices.
Exposure to CI/CD tooling and orchestration (GitHub Actions, Jenkins, Spinnaker, Kubernetes).
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.
