Agentic Product Engineer | Internship | Full - stack | Saily

Trainee Engineers At 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 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.

If you want to start your engineering career by doing real work - not exercises - join Saily.

We're looking for Trainee Engineers who think clearly, learn fast, and take ownership. Curiosity matters. So does discipline.

You'll work with a strong team on real problems from day one. You'll get support when you need it, and ownership when you're ready for it.

We move fast, use AI as a default, and focus on helping you build good engineering habits early.

This is a 3 months full-time paid internship. Prove yourself, perform well, and your contract will get upgraded to a full-time employment.

If that sounds like your kind of start, apply.

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

• Degree in software engineering and/or a portfolio of personal projects, ideally built using AI agents
• You can learn new technologies quickly
• 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 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 Gross salary: 5000 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.