Agentic Product Engineer | Internship | Full-stack | Saily

Agentic Product Engineer | Internship | 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 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, 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-month full-time paid internship. Prove yourself, perform well, and your contract will get upgraded to 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 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

Frontend: Next.js, React.js, TypeScript, GraphQL, Tailwind CSS, Cloudflare Workers

AI tools: Claude Code, OpenAI Codex, OpenCode, Cursor with Composer

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.

Innovate with industry leaders

Work alongside global experts to build world-leading cybersecurity tools, impacting millions of users around the world.

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

Boost your health with free‑of‑charge 24/7 gym access, onsite and online workouts, and consultations led by in‑house Physical Well‑Being experts.

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.

Receive private health insurance giving you peace of mind for your health needs.

Extra days off

Enjoy additional vacation days off as you grow with us. Plus, get extra days for sick leave, special occasions, or parenting needs.

Events & team-building

Experience iconic Nord Security celebrations, team‑buildings, and knowledge‑sharing events, nurturing bonds that fuel our success.

Location

Warsaw