Join our team as

Agentic Product Engineer · Senior · Saily

Vilnius / Kaunas

Hybrid

Engineering

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 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-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 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

Core Requirements

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 impact—not just tickets or tasks
5+ years of development experience building something real (product, system, tool, startup, side project, meaningful feature)

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

What we offer

🎓 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 you’re ready for something new — your development has no ceiling here.

🌿 Take the time you need

Rest isn’t a reward — it’s 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 shouldn’t 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 isn’t a luxury — it’s the foundation. We provide free subscriptions to top-rated Calm and Headspace apps, offer resilience and mindfulness trainings, and run dedicated mental health events.

🏋🏻 Own your fitness

Feeling good shapes how you work, think, and create. That’s 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. It’s legendary. If you’ve heard stories, they’re 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 shouldn’t pass quietly. Birthdays, work anniversaries, weddings, new family members — each is marked with a special gift.

👶🏻 Parent with ease

When you’re 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. It’s a modern workspace built with your comfort in mind.

Kindly refer to our Privacy Notice for Recruitment Candidates for comprehensive information regarding our data handling procedures throughout recruitment processes.

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].