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Location
In office (Sofia)

First seen by Alion on Oct 28, 2026.

Overview
Company
Impact
Profile match
A1 Bulgaria is a telecommunications operator offering mobile and fixed services, the latest smartphones and devices, as well as digital, business and financial services, with online purchasing. Its Competence Delivery Center in Sofia hires AI architects, site reliability engineers, cloud optimization engineers, QA engineers and software asset management leads to support the group's operations. The company is headquartered in Sofia, Bulgaria.

Strength. Care. Growth

Did you know that A1 Bulgaria is working on international projects as well?
Our wide portfolio has long past the telecom services, and we are now offering digital solutions to millions of corporate, public, and private customers.
State-of-the-art technology, the latest innovations, and extremely talented professionals in various areas help us deliver the best-in-class products, services, and customer experience.

You’ll know A1 Bulgaria is the right place for you if you are driven by:

  • Opportunities to learn and build your career.
  • Meaningful work in a stable and fast-paced company.
  • Diversity of people, projects, and platforms.
  • A supportive, fun, and inspiring place to work.

Would you like to join us?

Aleksandar Dzumaliev is looking for a new team member.

Your daily routine would include:

  • Performing administrative activities for web and application servers, including installations, deployments, configuration, upgrades, security patching, sanity testing, and maintenance across production and non-production environments.
  • Troubleshooting and resolving incidents and technical issues across supported environments and services.
  • Monitoring the health and availability of systems and services, performing diagnosis and root cause analysis, reviewing logs, resolving errors, and implementing workarounds when necessary, in line with defined SLAs.
  • Planning and coordinating changes, upgrades, and the introduction of new services while ensuring system stability and operational readiness.
  • Performing application and system performance tuning and optimization.
  • Developing tools and scripts to automate repetitive operational tasks and improve efficiency.

We’ll know you can make it if you have:

  • 2+ years of experience in enterprise environments, maintaining, supporting, and deploying applications or systems across production and non-production environments.
  • Strong experience with UNIX/Linux and/or Windows-based application environments.
  • Hands-on knowledge of web and middleware technologies such as Apache, Tomcat or NGINx.
  • Experience with Shell scripting (e.g. Python).
  • A university degree in IT, Telecommunications, Computer Science, or another relevant field.
  • Fluent English, both written and spoken.

Nice to Have:

  • Knowledge of or hands-on experience with monitoring and observability tools.
  • Experience with HTML, CSS, Java, and/or JavaScript.
  • Experience with SSL/TLS certificates and certificate lifecycle management.
  • Experience with container technologies such as Docker and/or Kubernetes.

Our gratitude for the job done will be eternal, but we’ll also offer you:

  • Innovative technologies and platforms to “play” with.
  • Modern working environment for your comfort.
  • Friendly, ambitious, and motivated teammates to support each other.
  • Thousands of online and in-person learning opportunities to grow.
  • Challenging assignments and career development opportunities in multinational environment.
  • Attractive remuneration package.
  • Flexible working schedule and opportunity for home office.
  • Numerous additional goodies, including, but not limited to free A1 services, discounts, health insurance and services, sports center, childcare, team and family events, etc.

You want to learn more? See us in action in our A1 Blog.
Sounds good? Apply now!

Only shortlisted candidates will be contacted.

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