Senior Backend Software Engineer

1 Month ago • 5 Years + • Backend Development

Job Summary

Job Description

EveryMatrix seeks a Senior Backend Software Engineer in Zagreb to architect and build scalable, reliable, high-performance backend systems using Node.js microservices. Responsibilities include designing, implementing, and maintaining these services; collaborating with product, front-end, and DevOps teams; leading small engineering teams; writing clean, well-tested code; mentoring junior developers; and troubleshooting production issues. The role requires significant experience with Node.js, databases (PostgreSQL, MySQL, MongoDB), building scalable systems and RESTful APIs, and strong system design principles.
Must have:
  • 5+ years software development experience (1+ year senior role)
  • Strong Node.js proficiency
  • Database experience (PostgreSQL, MySQL, MongoDB)
  • Scalable system & microservices expertise
  • RESTful API design
  • Advanced English skills
Good to have:
  • Real-time monitoring (Prometheus, Grafana)
  • Event-driven architecture/message queues (Kafka, RabbitMQ)
Perks:
  • Hybrid work schedule
  • Sliding work schedule
  • 23+ annual leave days
  • 10 paid sick leave days
  • Paid parental leave
  • Monthly meal allowance
  • Paid personal days
  • Private health insurance
  • Access to online learning platforms
  • In-house English course
  • Multisport card
  • Travel expenses
  • Bonuses

Job Details

About us:

EveryMatrix is a leading B2B SaaS provider delivering iGaming software, content and services. We provide casino, sports betting, platform and payments, and affiliate management to 200 customers worldwide.

But that's not all! We're not just about numbers, we're about people. With a team of over 1000 passionate individuals spread across twelve countries in Europe, Asia, and the US, we're all united by our love for innovation and teamwork.

Join us on this exciting journey as we continue to redefine the iGaming landscape, one groundbreaking solution at a time.

Zagreb office is part of OddsMatrix, which empowers clients to unleash bold ideas and deliver outstanding player experiences. For over a decade, we have offered tailored B2B sports betting solutions for every market. Featured services include turnkey betting software (online, retail and omnichannel), real-time sports data APIs and data feeds.

We are looking for a passionate and dedicated Senior Backend Software Engineer to join our team in Zagreb, Croatia!

What you'll get to do:

  • Architect and build scalable, reliable, and high-performance backend systems.
  • Design, implement, and maintain Node.js microservices.
  • Work closely with product managers, front-end engineers, and DevOps teams to deliver end-to-end solutions.
  • Take ownership of technical projects and lead a small team of engineers.
  • Write clean, maintainable, and well-tested code.
  • Mentor junior developers and conduct code reviews.
  • Troubleshoot and resolve complex production issues.

What You need to shine:

  • 5+ years of experience in software development, with at least 1 year in a senior/lead role.
  • Strong proficiency in Node.js.
  • University technical degree.
  • Solid experience with databases (PostgreSQL, MySQL, MongoDB, etc.).
  • Expertise in building scalable systems, microservices, and designing RESTful APIs.
  • Advanced English skills in speaking and writing.
  • Strong knowledge of system design principles and software architecture.
  • Bonus points if you are familiar with the following:
    • Real-time monitoring systems and tools (Prometheus, Grafana).
    • Experience with event-driven architecture or message queues (e.g., Kafka, RabbitMQ).

Here's what we offer:

  • A starting salary from 4.000 EUR (gross/brutto1).
  • Hybrid work schedule: 60% work from the office and 40% work from home per quarter (during your first 3 months, you'll be in the office full-time).
  • Sliding work schedule (start anytime between 8:00 to 10:00 am).
  • Start with 23 days of annual leave, with 2 additional days added each year, up to 33 days by your fifth year with us.
  • Stay Healthy: 100% paid 10 sick leave days per year, no doctor's note required.
  • Support for New Parents:
    • 21 weeks of paid maternity leave, with the flexibility to work from home full-time until your child turns 1 year old.
    • 4 weeks of paternity leave, plus the flexibility to work from home full-time until your child is 13 weeks old.
  • Our office perks include parking, on-site massages, and frequent team-building activities in various locations.

Benefits & Perks:

  • Monthly meal allowance.
  • Paid Personal Days for specific life events, including but not limited to childbirth, wedding, relocation, blood donation, and volunteering.
  • Private health insurance and an extended health plan – Wiener; annual medical checks at the Aviva polyclinic.
  • Access online learning platforms like Udemy for Business, LinkedIn Learning or O’Reilly and a budget for external training.
  • In-house English course and presentation skills training.
  • Multisport card.
  • Travel expenses – depending on the place of residence.
  • Easter, Christmas, summer and referral bonuses.

At EveryMatrix, we're committed to creating a supportive and inclusive workplace where you can thrive both personally and professionally. Come join us and experience the difference!

EveryMatrix is a member of the World Lottery Association (WLA) and European Lotteries Association. In September 2023 it became the first iGaming supplier to receive WLA Safer Gambling Certification. EveryMatrix is proud of its commitment to safer gambling and player protection whilst producing market leading gaming solutions.

Similar Jobs

Warner Bros Games - Staff Software Engineer - Golang - QoE Platform

Warner Bros Games

Bengaluru, Karnataka, India (Hybrid)
1 Month ago
SmileGate - Platform Division Store Service Backend Developer

SmileGate

Seongnam-si, Gyeonggi-do, South Korea (On-Site)
1 Month ago
Scale AI - Software Engineer (Infrastructure)

Scale AI

Doha, Doha Municipality, Qatar (On-Site)
1 Day ago
Trackman - Mobile App Developer - Team Sports

Trackman

Denmark (On-Site)
7 Months ago
Canva - Backend Software Engineer - Internationalization

Canva

Beijing, Beijing, China (Remote)
1 Month ago
Google - Software Engineering Manager, Core Analytics and Insights

Google

Sunnyvale, California, United States (On-Site)
2 Days ago
Epic Games - Senior C++ Programmer, Native Client

Epic Games

Montreal, Quebec, Canada (On-Site)
2 Weeks ago
Good Job Games - Senior Software Engineer

Good Job Games

İstanbul, Türkiye (On-Site)
5 Months ago
Epic Games - Principal Programmer, Horde

Epic Games

Montreal, Quebec, Canada (On-Site)
2 Months ago
ByteDance - Software Development Engineer Graduate (Distributed NoSQL Database Systems)

ByteDance

San Jose, California, United States (On-Site)
1 Month ago

Get notifed when new similar jobs are uploaded

Similar Skill Jobs

31st Union - Expert Backend Engineer

31st Union

San Mateo, California, United States (On-Site)
2 Weeks ago
Kabam - Senior Software Engineer (1 Year Contract)

Kabam

Montreal, Quebec, Canada (Hybrid)
6 Months ago
Luxoft - Senior Back End Developer

Luxoft

Bengaluru, Karnataka, India (On-Site)
4 Months ago
Hudl - Senior Software Engineer

Hudl

London, England, United Kingdom (On-Site)
1 Day ago
Stepico - Node.js Developer

Stepico

(Remote)
1 Month ago
IGG - Unity Programming Intern

IGG

Singapore (On-Site)
2 Weeks ago
Highspot - Senior Backend Engineer, Ecosystems

Highspot

Hyderabad, Telangana, India (Hybrid)
6 Months ago
Octopus - DevOps Team Lead

Octopus

Israel (Hybrid)
4 Months ago
Vendavo - Senior Software Engineer

Vendavo

(Remote)
6 Months ago
Scale AI - Developer Productivity Engineer

Scale AI

San Francisco, California, United States (On-Site)
1 Day ago

Get notifed when new similar jobs are uploaded

Jobs in Zagreb, Croatia

Casumo - Quality Assurance Specialist

Casumo

Zagreb, Croatia (Hybrid)
4 Months ago
Casumo - Engineering Team Lead

Casumo

Zagreb, Croatia (Hybrid)
2 Months ago
Room 8 Studio - Realistic 3D Hard Surface Artist, Middle/Senior

Room 8 Studio

Croatia (On-Site)
2 Weeks ago
Every matrix - Senior Frontend Engineer

Every matrix

Zagreb, Croatia (Hybrid)
1 Month ago
Every matrix - Senior Software Engineer (Node.js + Vue.js)

Every matrix

Zagreb, Croatia (Hybrid)
3 Months ago
Casumo - Senior Business Analyst

Casumo

Zagreb, Croatia (Hybrid)
1 Month ago
Tesla - Project Developer / Business Developer EV Charging - Western Balkan

Tesla

Zagreb County, Croatia (On-Site)
2 Months ago
Reversing Labs - Technical Writer

Reversing Labs

Zagreb, Grad Zagreb, Croatia (Hybrid)
1 Month ago
Reversing Labs - Principal Infrastructure & Cloud Optimization Engineer

Reversing Labs

Zagreb, Grad Zagreb, Croatia (Hybrid)
2 Weeks ago
Tesla - Field Service Technician (Electrician) Industrial Storage / Supercharging

Tesla

Zagreb County, Croatia (On-Site)
2 Months ago

Get notifed when new similar jobs are uploaded

Backend Development Jobs

Fortis Games - Staff Software Engineer (Backend/Multiplayer)

Fortis Games

Canada (On-Site)
3 Months ago
Google - Senior Software Engineer, Databases Site Reliability Engineering

Google

Dublin, County Dublin, Ireland (On-Site)
2 Weeks ago
Supercell - Senior Server Engineer

Supercell

Helsinki, Uusimaa, Finland (On-Site)
6 Months ago
ByteDance - Backend Engineer Intern, Video-On-Demand

ByteDance

Singapore (On-Site)
2 Weeks ago
Illuvium - Senior C# Engineer

Illuvium

Copenhagen, Denmark (Remote)
7 Months ago
Sovrun - Senior Rust Engineer

Sovrun

Makati, Metro Manila, Philippines (Remote)
1 Month ago
Knuddels - Backend Development and Data Science Intern

Knuddels

Baden-Württemberg, Germany (Remote)
1 Month ago
Bigpoint - Lead Game Developer

Bigpoint

Hamburg, Hamburg, Germany (Remote)
3 Months ago

Get notifed when new similar jobs are uploaded

About The Company

Bucharest, Bucharest, Romania (Hybrid)

Bucharest, Bucharest, Romania (Hybrid)

London, England, United Kingdom (Hybrid)

Lviv, Lviv Oblast, Ukraine (Hybrid)

Lviv, Lviv Oblast, Ukraine (Hybrid)

Sliema, Malta (Hybrid)

Bucharest, Bucharest, Romania (Hybrid)

Changsha, Hunan, China (On-Site)

Sliema, Malta (Hybrid)

London, England, United Kingdom (Hybrid)

View All Jobs

Get notified when new jobs are added by Every matrix

Level Up Your Career in Game Development!

Transform Your Passion into Profession with Our Comprehensive Courses for Aspiring Game Developers.

Job Common Plug