Jobs at A1 Group

Design, develop, and maintain scalable RESTful and gRPC APIs for telecom network services and integrations. Build secure, high-performance backend services, integrate with 5G, LTE, MPLS, and SDN infrastructure, and manage API versioning, documentation, monitoring, and lifecycle operations. Collaborate with network engineers and product teams, troubleshoot performance issues, and write reliable, tested code using modern cloud, containerization, and microservices technologies.

Drive presales for ERP, CRM, BI, and AI solutions by analyzing business requirements, designing end-to-end architectures, defining integrations, delivering executive presentations and demonstrations, supporting proposals and RFPs, and developing proofs of concept. The role partners with sales and technical teams to translate technology capabilities into business value for enterprise clients.

Design, develop, test, release, monitor, document, and support enterprise integration solutions using TIBCO technologies. The role includes managing ESB service updates, automating infrastructure and business-process monitoring, analyzing incidents, supporting failed-flow reporting, collaborating with international Agile teams, and providing on-call support for EAI/ESB issues.

Prepare financial statements under local GAAP, support external audits, participate in financial closing and statement reviews, and design and maintain SOX controls. The role requires accounting expertise, IFRS knowledge, Excel proficiency, strong organization and communication skills, English fluency, collaboration, accountability, and a commitment to continuous development.

Design, develop, and test scalable batch and near-real-time Big Data solutions. Build and architect the central Data Lake, optimize data flows, validate processing accuracy, and collaborate with data scientists and stakeholders. The role also involves developing data pipelines, evaluating new technologies, and working with Python, SQL, Linux, and distributed data-processing tools.

Supports high availability, monitoring, reporting, incident resolution, root-cause analysis, production changes, deployments, automation, and service design for A1 Group voice-channel and IVR applications. The role requires contact center platform administration, SIP/RTP/VoIP knowledge, IVR and CTI fundamentals, omnichannel and CRM integrations, telephony components, networking, and troubleshooting skills.

Develop, maintain, and support .NET Core backend services: implement features, fix bugs, ensure code quality, collaborate with business consultants and participate in daily team meetings.

Provide second-level support for billing systems: monitor, maintain and troubleshoot production and test environments; run billing/rating/batch jobs; execute SOX controls; create reports; automate routine tasks with scripts; handle incidents within SLAs and participate in on-call rotation.

Senior individual contributor owning end-to-end wholesale solution sales across IoT, roaming, IPX and travel SIM. Build strategic customer relationships, design commercial solutions, manage pricing and proposals, coordinate cross-functional teams, maintain pipeline, close complex multi-stakeholder deals and represent the company internationally.

Configure, integrate, upgrade, and troubleshoot mobile Radio Access Network elements. Monitor network KPIs, alarms, logs, and traces; perform configuration changes; support base-station integration and commissioning; and participate in operational procedures for network expansion. Contribute to testing and delivery of 2G, 3G, 4G, 5G, VoLTE, and NB-IoT services while collaborating with technical teams.

The Azure Architect will lead technical sessions, design end-to-end Microsoft Sentinel solutions, develop Azure Logic Apps, implement security controls, advise on Azure licensing, define monitoring strategies, and maintain CI/CD pipelines while providing customer-facing consulting and documentation.

Monitor customer environments, triage and investigate security alerts, assess incidents, distinguish true and false positives, escalate validated threats, communicate findings, document response actions, and support threat hunting, detection improvements, and SOC process optimization. The role requires strong cybersecurity knowledge, customer communication skills, English, and mandatory German proficiency at C1 level or native fluency.

Customize and extend Dynamics 365 applications, develop C# plugins and APIs, build OData and Dataverse integrations, automate processes with Power Apps and Power Automate, and support testing, troubleshooting, code reviews, and deployments across environments. The role also involves version-controlled collaboration and responsible use of AI coding assistants. Preferred experience includes PCF development with React and TypeScript, Azure services, and Microsoft Power Platform certification.

Administer, configure, maintain, and support the ServiceNow platform across ITSM modules, including incident, request, problem, change, CMDB, and knowledge management. Responsibilities include patching, vulnerability management, release activities, troubleshooting, platform monitoring, root cause analysis, access control, testing, deployments, integrations, documentation, and coordination with development teams and ServiceNow support.

Design, develop, and maintain scalable RESTful and gRPC APIs for telecom network services and integrations. Build secure, high-performance backend services, integrate network infrastructure, manage API versioning and documentation, and ensure reliability, monitoring, and high availability. Collaborate with network engineers and product teams, troubleshoot performance issues, and write clean, tested code using modern cloud, containerization, and API management technologies.

Build and operate data and AI platform services using Python, Kubernetes, Helm, Terraform, Azure, Kafka, and GitOps. Develop automation, APIs, infrastructure modules, and CI/CD workflows; troubleshoot distributed systems spanning applications, identity, networking, storage, and cloud services. Support observability, incidents, runbooks, operational readiness, and emerging AI platform workloads.

Manage treasury and payment activities, including cash balance reporting, loan repayment schedules, bank credit lines, cash pooling, corporate cards, bank guarantees, SAP payment proposals, and outgoing payment controls. Prepare National Bank reports and ensure compliance with Group Treasury limits and company policies. The role requires finance knowledge, payment-handling experience, analytical and organizational skills, SAP and online banking experience, and English proficiency.

Monitor and maintain business-critical applications and servers; handle tickets and escalations; communicate with teams; prepare regular and ad-hoc system reports; keep system documentation and logs up to date.

The Business Auditor prepares and conducts audits, evaluates internal controls, creates test documentation, and performs risk analyses while participating in the development of audit methods.

Conduct IT audits, evaluate internal controls, create documentation, follow up on findings, develop testing methods, and perform risk analysis. Collaborate on learning solutions.