Agentic Product Engineer | Junior | Full-stack | Saily
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’re opening our doors to talented junior engineers - because impact isn’t measured in years of experience. It comes from your drive to learn, your discipline, and a sharp mind. It’s about building and shaping what’s around you - and Saily will give you the room to do exactly that.
What can you expect from us? Hands-on experience with AI-assisted software development, shared openly. Full freedom to use whatever learning resources you need to keep up. A product that’s successful, impactful, and technically challenging - something you’ll actually want to build.
Pack your skills, bring your vision, and join Saily!
Main Responsibilities
- Delivers small tools/features with support from the team.
- Collaborate with product, design, and other engineers.
- Operate in small, highly autonomous teams.
- Learn how to use AI agents for specs, coding, analysis, testing, and iteration.
- Take part in the improvements of our internal agent network and development workflows.
- Focus on user and business outcomes, not output.
Core requirements
- 1+ year of software development experience building something real (product, system, tool, startup, side project, meaningful feature, or student project)
- You value autonomy over stability and process
- You enjoy working across layers instead of staying in one box
- You think in problems and outcomes, not tickets
- You are comfortable with ambiguity
- You can learn new technologies quickly
- You are curious about AI and excited to work with agents
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
- Infra: Linux, Docker, GitLab, ArgoCD, AWS, Terraform, Helm, OpenSearch, Prometheus, Python / Golang
- AI tools: Claude Code, OpenAI Codex, OpenCode, Cursor with Composer
Salary Range
Perks we offer
Our global mission fuels our drive. But when you need that extra push - here’s a list of things to look forward to.
Apply for this job
Fullstack
Vilnius / Kaunas
Our values
Our values are rooted in the actions of our people. They describe how we solve problems, make decisions, and ultimately - reach our goals as a team.

