Agentic Product Engineer Senior Saily

At Saily, were 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 of travelers browsing through Saily at any given moment.

To build the best product for our customers, we foster an 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-endfrom 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 a Senior Engineer
• Improve our internal agent network and development workflows
• Move across the stack when needed
• Focus on user and business outcomes, not output

• Proven experience designing, building, and deploying AI-native tools or applications within an organization, which has seen measurable, successful adoption
• Proven experience building full-stack features across mobile or web applications (frontend + backend)
• Comfortable operating with minimal guidance and with no initial acceptance criteria
• Strong product mindset: focus on problems, outcomes, and impactnot just tickets or tasks
• 5+ years of development experience building something real (product, system, tool, startup, side project, meaningful feature)

• Sharpen your edge Growth is built into how we work. Extensive online and in-person training programs, access to platforms like Coursera and Skillshare, a mentorship program, and internal career moves when youre ready for something new your development has no ceiling here.
• Take the time you need Rest isnt a reward its part of the deal. Enjoy extra vacation days that grow with your time here, plus additional days off for sick leave, special occasions, and parenting.
• Get premium healthcare Your health shouldnt be something you worry about. We provide premium private health insurance so you have peace of mind and fast access to care whenever you need it. Available in Lithuania and Poland.
• Protect your peace A peaceful mind isnt a luxury its the foundation. We provide free subscriptions to top-rated Calm, Headspace, and Mindletic apps, offer resilience and mindfulness trainings, and run dedicated mental health events.
• Own your fitness Feeling good shapes how you work, think, and create. Thats why we offer in-house gyms, Multisport and Urban Sport cards, and online workouts. Need something tailored? Our Physical Well-Being experts are here with group mobility sessions, fitness guidance, and one-on-one consultations.
• Pack your bags for workation Picture this: the entire company flies out abroad. The days are packed with workshops, activities, concerts, and real time together. Its legendary. If youve heard stories, theyre probably true.
• Work from anywhere New surroundings spark new thinking. When you need a reset, switch location and work from wherever keeps you sharp, creative, and in the zone.
• Celebrate your milestones The moments that make life special shouldnt pass quietly. Birthdays, work anniversaries, weddings, new family members each is marked with a special gift.
• Parent with ease When youre a parent, the juggle is real. To make it smoother, we organize summer camps for the little ones and offer flexibility that lets you show up both for your family and your team.
• Join the party It never gets boring here. Get ready for team buildings that bring people closer, year-round company events that are equal parts educational and energizing, and the highlights everyone waits for our iconic summer and winter celebrations.
• Unlock Cyber City Whether Vilnius-based or visiting from remote, our Vilnius HQ is fully yours to enjoy. Need focus? Silent room. Need energy? Open gyms. Need a break? Game room, music room, coffee bar. Its a modern workspace built with your comfort in mind.