At Saily, we’re removing the hassle of staying connected while traveling — no roaming fees, no plastic SIM cards, just lightning-fast, secure mobile data in 200+ destinations. Saily has millions of paying customers and hundreds of thousands travelers browsing through Saily at any given moment.
To build the best product for our customers we foster AI-native Product Engineering culture, where:
- The Engineer is the builder, who is responsible for solving customer problems end-to-end (idea to production)
- AI Agents are the enablers who write most of the code and solve repeatable tasks to help the Engineers maximize their impact
- Everyone contributes to making Saily effective by suggesting new areas for improvement to delegate to agents and then implementing the changes
- Curiosity, learning and sharing are everyone's responsibility
- Customer, having a comfortable, connected, hassle-free journey is never lost from the focus
We value growth over comfort, contribution over hierarchy, and impact over process. At Saily, we believe in giving sharp people context, autonomy, and AI as their multiplier to allow them to just do their best work.
Main Responsibilities
Own problems end-to-end—from idea to production
Deliver features without relying on fully defined or perfect specifications
Work directly with product, design, data, and other engineers
Operate in small, highly autonomous teams
Use AI agents for specifications, coding, analysis, testing, and iteration
Deliver 2x the output of a non-AI using Senior Engineer
Improve our internal agent network and development workflows
Move across the stack when needed
Focus on user and business outcomes, not output
Core Requirements
Proven experience building full-stack features across mobile or web applications (frontend + backend)
Comfortable operating with minimal guidance and with no initial acceptance criteria
Proven experience designing, building, and deploying AI-native tools or applications within an organization, which has seen measurable, successful adoption
Strong product mindset: focuses on problems, outcomes, and impact—not just tickets or tasks
5+ years of development experience building something real (product, system, tool, startup, side project, meaningful feature)
Strong experience with backend, ideally with Go
Tools You Will Use
Backend: Go, MySQL, Kafka, Docker, Kubernetes, AWS, Redis
Frontend: Next.js, React.js, TypeScript, GraphQL, Tailwind CSS, Cloudflare Workers
IOS: SwiftUI, Xcode, Combine, SPM, MVVM Architecture
Android: Kotlin, Android Studio, Hilt, Coroutines, Jetpack Compose, MVVM Architecture
AI tools: Claude Code, OpenAI Codex, OpenCode, Cursor with Composer
Salary Range
Gross salary: 27,000 — 37,500 PLN/month
What We Offer
Innovate with industry leaders
Work alongside global experts to build world-leading cybersecurity tools, impacting millions of users around the world.
Learn & grow
Boost your skills via our extensive training programs (online and offline) & other resources. Benefit from mentorship and career-switch opportunities to grow within the company.
Hybrid work
Enjoy the flexibility with 3 office days and working from home for the remaining 2.
Work from anywhere
Recharge with a change of scenery – choose work from any location when you feel a need to power your creativity and drive.
Physical well-being
Fuel your active lifestyle with online workouts led by our Physical Well-Being experts. Unlock a variety of sports and wellness facilities, like gyms, swimming pools, and fitness classes, with the Multisport card.
Mental & emotional health
Nurture your mind with free psychologist consultations, dedicated mental health events, and premium access to top-rated wellness apps like Calm, Headspace, and Mindletic.
Premium healthcare
Receive private health insurance giving you peace of mind for your health needs.
Joyful moments – special treats
Celebrate life’s big moments with special gifts from us on your birthday, anniversary, and other major events, such as weddings or the arrival of a new family member.
Company events & team-building
Experience iconic Nord Security celebrations, team-buildings, and knowledge-sharing events, nurturing bonds that fuel our success.
Workation
Embark on a legendary company getaway abroad, filled with exciting activities, live concerts, engaging workshops, and epic time together.
Kindly refer to our Privacy Notice for Recruitment Candidates for comprehensive information regarding our data handling procedures throughout recruitment processes: https://bit.ly/40GWyjL
We expect all candidates to provide accurate and complete information during the recruitment process. While limited use of AI tools to refine application materials is acceptable, candidates remain fully responsible for ensuring that their submissions reflect their own qualifications, skills, and experience. Any failure to do so may negatively affect participation in the recruitment process. If broader AI assistance is allowed for a particular role or stage, we’ll let you know in advance.
By submitting your application, you acknowledge that it may be processed using automated tools for evaluation purposes. As part of our recruitment process, we may use an AI-based application review tool to help assess applications based on skills and experience relevant to the role. This technology is used to support - not replace - human decision-making, and every application is ultimately reviewed by a recruiter.
If you would like more information about how AI is used in this process or wish to exercise your rights under applicable data privacy laws, please contact us at [email protected]. Should you prefer to opt out of the automated evaluation, please submit your application directly to [email protected].
