Senior Backend Developer

At Bold.One, we don’t wait for momentum – we build it. As an e-commerce company we move fast, test boldly, and turn ideas into real results. And the real engine behind all that? Our people.

With 200+ ambitious teammates who own their work, learn fast, and lift each other up, this is a place where you’re trusted to think big and move with intent.

We’re now looking for a Senior Backend Developer who’s ready to scale solutions and leave a real technical mark.

WHAT YOU WILL DO:

Drive backend architecture and technical decisions;
Design, develop, and optimize scalable, high-load systems;
Lead complex feature development from idea to production;
Improve system performance, reliability, and observability (monitoring, logging, alerting);
Mentor engineers and promote engineering best practices;
Contribute to product decisions with technical insight;
Identify and resolve deep technical challenges;
Ensure security, scalability, and maintainability across systems.

WHAT WE EXPECT:

5+ years of hands-on experience building and maintaining scalable, highly available, high-load systems;
Strong expertise in PHP (Laravel preferred; Symfony also valued);
Deep understanding of MySQL & NoSQL databases;
Experience with event-driven architecture and distributed systems;
Experience with real-time messaging systems;
Strong experience with cloud providers (AWS, GCP, or similar);
Familiarity with CI/CD pipelines and modern DevOps practices;
At least basic understanding of React (or similar framework) and willingness to collaborate closely with frontend teams;
Experience in e-commerce systems (payments, A/B testing, conversion tracking);
Strong focus on secure web application architecture;
Highly autonomous, solution-oriented, and proactive.

WE OFFER:

Salary from €5700 (gross) depending on experience;
Workplace Flexibility: flexible work arrangements, including a hybrid working model;
Well-being benefits: Enjoy the flexibility to choose between private health insurance or a wellness budget to support your overall well-being;
Encouraging learning environment: opportunities for professional development, including a budget for books and online courses, and time for learning;
Collaborative, dynamic & experienced team: a culture where diverse perspectives are valued and encouraged;
Regular team building: activities to strengthen bonds with your colleagues through regular team events and outings;
Referral bonuses: there is an opportunity to receive a reward for recommending someone to the team;
Modern offices: offices in Vilnius and Kaunas city centers (shower, kitchen, Foosball & other benefits for a comfortable working environment);
Office Perks: weekly snack refills, bun Wednesdays to brighten your midweek, and company lunch on the last Friday of each month;
Celebrations & Events: company-wide events and celebrations, such as results overviews, Christmas parties, and summer events;
Personal Celebrations: recognition of personal milestones and celebrations, such as birthdays and anniversaries.

Senior Backend Developer

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