At AT&T we’re redefining the future of communication by connecting people to greater possibility - with expertise, simplicity, and inspiration. At the heart of our purpose lies a diverse workforce of 130,000 people and a culture that aspires to serve customers first, act boldly, move faster, and win as one.

Our Product Development group, part of AT&T’s Technology Services (ATS) organization, is responsible for building software-based products, services, and platforms that our customers love and need. Harnessing technology and rebuilding software expertise, the team is inspiring simplicity with projects that deliver revenue and cost savings opportunities.

This is a hybrid position requiring presence in the office 1-3 times per week.

Job Overview

As a Medior Full-Stack Developer, you will be responsible for developing, testing, and maintaining high-quality software solutions that support the transformation of our industry-standard order, delivery, and assurance management systems.
In this role, you will collaborate with Product Management, Business Systems, and Operations teams to build and enhance AT&T’s software platforms, working on new features, improvements, and defect resolution throughout the development lifecycle.

You will contribute to the design and implementation of robust, scalable systems, participate in technical discussions, and support continuous improvement in a collaborative, agile environment.

Core Responsibilities

• Design, develop, and maintain applications with proficiency in one of: Java (Spring Boot), Python (FastAPI), or Node.js (Nest); and working knowledge of the other two.

• Deliver technical solutions across the full software development lifecycle (SDLC).

• Apply best practices in software engineering, code quality, testing, and DevOps.

• Utilize AI-driven tools (e.g., GitHub Copilot, LLMs, RAGs) and stay up to date with new technologies.

• Implement data persistence using SQL and NoSQL databases (CosmosDB, MongoDB, PostgreSQL, Snowflake, Databricks).

• Use modern testing frameworks (Playwright, Cypress), code review, static analysis (Lint, Prettier, Veracode, Sonar Qube), and CI/CD pipelines (GitHub Actions, Terraform).

• Develop and maintain APIs (REST, OpenAPI/Swagger) and contribute to event-driven architectures (Kafka, messaging services).

• Contribute to cloud-native development with Azure, Docker, and Kubernetes.

• Participate in agile processes (Agile/Scrum, SAFe, Kanban) and team ceremonies.

• Work with team members and stakeholders to understand and implement business requirements.

Skills, Knowledge, and Experience

Day-to-Day

• Hands-on coding, troubleshooting, and implementation across the stack.

• Participating in code reviews and technical discussions.

• Taking part in agile ceremonies, team meetings, and cross-functional projects.

• Learning from and supporting senior engineers.

Technical Skills

• Proficiency in one of: Java (Spring Boot), Python (FastAPI), or Node.js (Nest); with working knowledge of the other two.

• Experience with SQL and NoSQL databases (CosmosDB, MongoDB, PostgreSQL, Snowflake, Databricks).

• Exposure to event-driven architecture, Kafka, and messaging services.

• Understanding of API design: REST, Swagger, OpenAPI.

• Experience with automated testing: Playwright, Cypress.

• Familiarity with code quality and security tools: Lint, Prettier, Veracode, Sonar Qube.

• Experience with CI/CD automation (GitHub Actions, Terraform) and cloud-native platforms (Azure, Docker, Kubernetes).

• Understanding of SDLC and agile methodologies (Agile/Scrum, SAFe, Kanban).

• Awareness of enterprise platforms: Service Now, Salesforce, TM Forum (highly desirable).

Additional Desirable Experience

• Exposure to AI-driven developer tools.

• Experience participating in system modernization or cloud migration projects.

• Experience working with distributed teams in enterprise environments.

Education

Bachelor level degree or equivalent in Computer Science, or related field of study.

Location

This is a hybrid position requiring presence in the office 1-3 times per week.

Compensation:

Salarystarts from 3 283EUR gross monthly. The actual offer is based on skills, experience and knowledge.

Benefits

A career with us, a global leader in communications and technology, comes with big rewards. We offer a competitive salary plus an annual company performance bonus. Once you are a part of the team, you will gain some amazing perks and benefits including wellness & leisure time contribution, sickness compensation plan, premium medical services, family friendly benefits as well as meal contribution and an extra week of vacation (…and much more).

Ready to find out more? Apply today!

Weekly Hours:

40

Time Type:

Regular

Location:

Kosice, Slovakia

It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made.