# Stefan Ramač Stefan Ramač is a remote worker on Himalayas, DevOps Engineer at A1 Telekom Austria Group, based in Serbia. Source: https://himalayas.app/@stefanrama ```text Integration Engineer at A1 Telekom Austria Group, who cut API response times by 60–80%. ``` | Detail | Value | | --- | --- | | Availability | Looking for a job | | Location | Serbia | | Authorized to work in | Serbia | | Salary expectations | 60k+ USD | | Job categories | Integration Engineer, Integration Architect, DevOps Engineer, Software Engineer, Technical Business Analyst | | Skills | Integration Architecture, API Design, Enterprise Service Bus, Tibco Business Works, WebMethods, MuleSoft, REST APIs, SOAP, Java, Spring Boot, NodeJS, Azure, Azure API Management, Azure Functions, Google Apigee | | Website | https://stefanramac.com | | LinkedIn | https://linkedin.com/in/stefanramac | | GitHub | https://github.com/stefanramac | ## About ```text At A1 Telekom Austria Group - CompetenceDeliveryCenter (CDC), I own development and maintenance of OCC and Memphis, core systems serving 5M+ end users. I optimized API flows, reducing response times by approximately 60–80%, and am modernizing OCC into an independent service. At Erste Banka Srbija, I led integration design and delivery oversight for banking systems, including Temenos T24 integrations with the bank's ESB. I also delivered the integration architecture for an online lending application. I co-developed Thermowool ERP, taking ownership of its backend architecture and development. The platform went live in August 2025 and brings operational and employee data together for 150+ daily users. ``` ## Experience ### DevOps Engineer (current) [A1 Telekom Austria Group](https://himalayas.app/companies/a1-telekom-austria-group). Nov 2025 - Present ```text Own development and maintenance of core systems including OCC and Memphis TIBCO-based ESB platform. Lead modernization, optimize API flows, and implement CI/CD pipelines. ``` Skills: Tibco-Business-Works, TIBCO-EMS, Java, Spring-Boot, SOAP-REST-APIs, Git, Jenkins, Gitlab-CI, GitOps, SQL-Oracle, Unix-Linux, GitHub-Co-Pilot, API-Gateway, Event-Driven-Architecture ### Backend Developer / Solution Owner (current) Freelance. Jan 2025 - Present ```text Co-developed and deployed a production web-based ERP platform for a manufacturing company, owning backend architecture. Implemented role-based access control and automated workflows. ``` Skills: NodeJS, Next.js, JavaScript, MongoDB, Web-Applications, ERP, Role-Based-Access-Control, Backend-Development, Automation ### Technical Business Analyst / Integration Erste Banka Srbija. Jul 2025 - Nov 2025 ```text Led functional analysis and integration design for banking systems, including Temenos T24 integration and online lending application architecture. Facilitated design workshops and mentored junior team members. ``` Skills: T24, ESB, REST-APIs, Kafka, Event-Streaming, Integration-Design, Technical-Documentation, Banking-Sector ### Software Engineer TNation. Aug 2024 - May 2025 ```text Designed and maintained REST/SOAP web services and integration flows using webMethods and MuleSoft. Contributed to XL-BYG Denmark project, developing API and backend functionality for B2B and B2C integrations. ``` Skills: WebMethods, MuleSoft, Java, Spring-Boot, NodeJS, AWS-Cloud, MongoDB, Soap-Rest, OpenAPI, Jenkins, GitHub-Actions ### Software Engineer NLB DigIT. Dec 2023 - Aug 2024 ```text Developed and supported enterprise ESB integrations, exposing a unified API layer on Azure API Management and Google Apigee. Led production support and root-cause analysis. ``` Skills: Azure-API-Management, Azure-Functions, Google-Apigee, SOAP, REST, SQL-PL-SQL, mTLS, OAuth, Java, Spring-Boot ### Integration Architect [Schneider Electric](https://himalayas.app/companies/schneider-electric). Dec 2022 - Dec 2023 ```text Held technical leadership for projects integrating client APIs into ADMS platform. Led a 5-person delivery team and conducted requirements workshops and solution design reviews. ``` Skills: Solutions-Architect, ADMS, Technical-Leadership, C#-.NET, SQL, API-Development, Utility-Industry, Scrum ### Software Engineer [Devoteam Serbia](https://himalayas.app/companies/devoteam). Aug 2021 - Dec 2022 ```text Built TIBCO BW5 Fulfilment Orchestration Suite applications for telecom clients. Contributed to MuleSoft API-led connectivity initiatives. ``` Skills: TIBCO-BW, SOAP, JMS, SMPP, MuleSoft, Anypoint-Platform, Bamboo-CI-CD, Telecommunications ## Education ### University of Novi Sad Bachelor, Electrical Engineering ```text Bachelor in Electrical Engineering from the Faculty of Technical Sciences, University of Novi Sad, completed in 2017. ``` ## Tech stack - OpenAPI - RAML - MuleSoft - GitHub - Jenkins - GitHub Actions - GitLab CI - Bamboo - Salesforce - MongoDB - Oracle - Node.js - Spring Boot - Next.js - JavaScript - Java - Kafka - Azure Functions - Git - SQL - GitHub Copilot - AWS - REST APIs - Azure To contact Stefan, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire). ## People also viewed - [Boban Dragojevic](https://himalayas.app/@bobandragojevic): Software Engineer, SEE Digital - [Marko Domić](https://himalayas.app/@marko-domic): Senior Software Engineer, Fivetran - [Dusan Grubjesic](https://himalayas.app/@dusangrubjesic): Senior Software Engineer, Engineering Insights - [Aleksandr User](https://himalayas.app/@aleksandruser3): Senior Java Software Engineer, IBM - [Artyom Laschmanov](https://himalayas.app/@artyomlaschmanov): System Analyst / Data Integration Engineer, Severstal Infocom - [Ognjen Vučeljić](https://himalayas.app/@ognjenvuelji): Lead Salesforce & MuleSoft Architect, EPAM - [Александр Фефилов](https://himalayas.app/@0006751): Kotlin backend developer, Alfa Bank - [Dejan Dimitrijević](https://himalayas.app/@dexdimitrijevic): Staff / Team Lead Software Engineer, Coredump / Hylastix - [Slobodan Vasic](https://himalayas.app/@slobodanvasic): Software Development Senior/Tech Lead, Engineering Software Lab d.o.o - [Iuliia Agapova](https://himalayas.app/@iuliiaagapova): Backend Developer, HeadHunter Group