Jobs at CSG

Lead design, development, and testing of scalable software systems across the full lifecycle. Architect backend-focused full-stack solutions, optimize performance, debug complex issues, and implement testing and CI practices. Mentor junior engineers, collaborate with stakeholders to define requirements, and participate in agile ceremonies to drive delivery and continuous improvement.

Design, develop, test, and deploy C#/.NET applications within Agile teams. Collaborate with product owners on requirements, produce design specs and technical documentation, debug complex issues, perform unit/integration/system testing, mentor junior engineers, and communicate with stakeholders.

Collaborate with developers and product owners to design, author, and execute manual and automated functional and non-functional tests. Develop test cases and automation suites, use CI/CD tools, document defects with reproducible steps, assess release readiness, participate in Agile ceremonies, and support test strategy and product quality.

Operate and support production and non-production cloud SaaS environments, troubleshoot incidents, automate tasks with Bash/Python, maintain Terraform-managed AWS infrastructure and CI/CD pipelines, operate containers/Kubernetes, tune observability (Prometheus/Grafana/CloudWatch), document runbooks, and coordinate cross-team releases and improvements.

Design, implement, test, and deploy Java-based product applications. Collaborate with business analysts and customers to clarify requirements, write unit tests and deployment scripts, perform release testing, document solutions, assist with client issues, and mentor teammates while using modern containerized development toolchains.

Design, develop, test, and maintain backend and frontend software components. Collaborate in Agile teams to build services and APIs, perform debugging and root-cause analysis, support deployments and operational incidents, and adopt modern engineering and testing practices.

Develop next-generation mobile test probes and cloud-based telecom testing software for 3G/4G/5G and IoT. Implement C/C++ applications on Linux with a focus on multithreading and RAN signaling (SIP, RRC, NAS). Work in a small agile team to validate and optimize mobile service performance for operators.

Lead pre-sales technical engagements: qualify opportunities, run requirements workshops, build and present tailored demos and solution documents, respond to RFI/RFPs, support proofs of concept, and collaborate with sales, product, and engineering to close deals.

Participate in all phases of the software development lifecycle using Agile. Translate business requirements into BRDs, design, develop, and maintain .NET applications, debug defects, execute unit/integration/system testing, collaborate cross-functionally, and produce technical documentation and test plans.

The Billing Systems Analyst I ensures the software operates effectively, supports system monitoring, automation, and provide troubleshooting in Unix/SQL environments, while collaborating with operational teams to meet organizational goals.

Design, develop, test, and maintain software within an Agile cross-functional team. Build services/APIs, debug issues, support deployments, participate in code reviews, and collaborate with product, QA, and operations to deliver maintainable solutions.

Design, develop, test, and maintain .NET-based applications and APIs. Collaborate with cross-functional teams, participate in Agile ceremonies, troubleshoot and support production issues, follow modern engineering practices (Git, CI/CD, unit testing), and learn from senior engineers to improve code quality, performance, and maintainability.

Design, develop, and execute automated tests and test plans, using AI-assisted tools and scripting to validate integrations and data integrity. Identify risks and gaps early, improve testability with Product and Development, reduce brittle tests, contribute to CI/CD quality gates, and act as the final quality judge for AI-generated artifacts.