Senior Software Engineer

LeapXpert

Senior Software Engineer designing and building distributed, event-driven backend services at LeapXpert. Collaborating on impactful projects that change the way businesses communicate globally.

Posted 5/26/2026full-timeSofia • 🇧🇬 BulgariaSeniorWebsite

Tech Stack

Tools & technologies

Distributed SystemsGoGrafanaJavaKafkaPrometheusRabbitMQ

About the role

Key responsibilities & impact

Design and build distributed, event-driven backend services
Lead end-to-end development: from planning and coding to deployment and observability.
Collaborate cross- functionally with product, design, and infrastructure teams.
Participate in architecture reviews, technical decision-making, and system documentation.
Help shape engineering culture by mentoring teammates and championing clean, maintainable code.
Ensure high reliability and availability through robust testing, logging, and incident response practices.

Requirements

What you’ll need

6 + years of professional backend development experience.
Deep understanding of distributed systems architecture and design principles.
Strong knowledge of event-driven systems, including experience with Kafka, RabbitMQ , or similar platforms.
Proficiency in Go, Java, or another modern backend language.
Experience with scalable APIs, system integration, and real-time data pipelines.
Understanding of system performance, observability, and monitoring (e.g., Prometheus, Grafana, OpenTelemetry ).
Strong problem-solving skills, with the ability to break down and simplify complex systems.
Hands-on experience working in an AI-native development environment , including integrating LLMs or AI services into product features, using AI-assisted development tooling, or building on top of AI APIs ( e.g. OpenAI, Anthropic, etc.)
Familiarity with DevOps practices and CI/CD tooling.
Fluency in English.

Benefits

Comp & perks

Innovative Culture: Work at the cutting edge of business communication technology, with a product that’s changing the way Fortune 500 companies communicate.
Impactful Work: Your contributions will directly impact how millions of professionals connect and collaborate worldwide.
Global Team: Be part of a diverse, mission-driven team that values collaboration, innovation, and growth.
Growth Opportunities: With our rapid expansion, there are plenty of opportunities for professional growth and development.
Award-Winning Product: Join a company with a track record of success and recognition, including accolades like being named a Gartner Cool Vendor.

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

backend developmentdistributed systems architectureevent-driven systemsKafkaRabbitMQGoJavascalable APIssystem integrationreal-time data pipelines

Soft Skills

problem-solvingmentoringcollaborationtechnical decision-makingcommunication