Agentic Product Engineer | Senior | Saily

Stack

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 senior engineer who is not an AI user
• ▹Improve the internal agent network and development workflows
• ▹Move across the stack when needed
• ▹Focus on user and business outcomes, not output

Requirements

• ▹Proven experience building full-stack features across mobile or web applications (frontend + backend)
• ▹Comfortable operating with minimal guidance and no initial acceptance criteria
• ▹Proven experience designing, building and deploying AI-native tools or applications within an organization, with measurable, successful adoption
• ▹Strong product mindset: focus on problems, outcomes and impact, not just tickets or tasks
• ▹7+ years of development experience building something real (product, system, tool, startup, side project, meaningful feature)
• ▹Strong backend experience, ideally with Go

Soft skills

What we offer

• ▹Training, mentorship and room to grow
• ▹Extra vacation days, sick days and time off when life calls
• ▹Fully covered private health insurance in Lithuania and Poland
• ▹Free Calm, Headspace and Mindletic subscriptions, plus resilience and mindfulness trainings
• ▹In-house gyms, sport cards, online workouts and personal guidance
• ▹Company-wide workation trip abroad
• ▹Work from anywhere
• ▹Gifts for milestones: birthdays, weddings, new family members
• ▹Children's summer camps and schedule flexibility for parents
• ▹Team building and company events
• ▹Vilnius HQ with coffee bar, open gyms, kids' room, music room and massage chairs

About the company

Saily provides fast, secure mobile data in 200+ destinations while traveling, with no roaming fees or plastic SIM cards, and has millions of paying customers.