Backend engineer | Senior | Transition to Go | Saily
Warsaw
Saily – Backend - Saily /
Full Time /
On-site
At Saily, we’re removing the hassle from getting secure data plans while traveling.
No roaming charges, no plastic SIM cards. Just fast, secure mobile data in 150+ countries. Join the team behind Lonely Planet’s #1 eSIM—built for explorers, powered by NordVPN.
Your impact? Helping people stay securely connected, wherever they go.
Main Responsibilities
- Enhancing the Saily product by developing and maintaining new features.
- Create features to support layers of multi-dimensional personalization, A/B experimentation, and analytics.
- Develop and maintain a high-quality codebase.
- Seek to improve code and performance constantly.
- Mentor colleagues on development best practices & provide technical guidance.
- Exercise influence on the overall vision and long-range goals of your team.
- Perform R&D operations whenever required.
- Work as part of a cross-functional team and help to ensure smooth communication between all team members.
- Collaborate with engineering, product, and design professionals from other teams.
- Please keep in mind that this position requires office attendance 3 times a week!
Core Requirements
- Over 4 years of experience in backend development.
- Preferably with a background in Python, PHP, or Ruby languages.
- System design is nothing new to you, and you know what patterns to use, when, and why.
- Previous experience in working with K8s and microservice architecture is a plus.
- Previous experience with SQL (MySQL, PostgreSQL) and NoSQL (Cassandra, Redis) solutions.
- Previous experience with Kafka.
- Passionate about building APIs that are easy to use and simple to understand.
- A collaborative mindset where you love to discuss, rethink, and redesign your ideas that create shared success within your team and the company.
Tools You Will Use
- Go.
- MySQL.
- Kafka.
- Kubernetes.
- AWS.
- Redis.
Salary Range
- Gross Salary 19800-33400 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.
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.
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