As the global leader in high-speed connectivity, Ciena is committed to a people-first approach. Our teams enjoy a culture focused on prioritizing a flexible work environment that empowers individual growth, well-being, and belonging. We’re a technology company that leads with our humanity—driving our business priorities alongside meaningful social, community, and societal impact. How You Will Contribute: - Design and manage robust infrastructure solutions to ensure the reliability and scalability of critical systems. - Proactively monitor system health using performance metrics and automated tools to detect and address potential issues. - Lead incident management efforts during service disruptions, ensuring swift resolution and minimal downtime. - Analyze root causes of system failures and implement long-term solutions to enhance system reliability. - Develop scripts and tools to automate repetitive tasks, improving operational efficiency and reducing manual interventions. - Collaborate with development teams to align on reliability goals and integrate best practices into software design and deployment. - Maintain comprehensive system documentation to support efficient troubleshooting and knowledge sharing. The Must Haves: - Proven experience managing and maintaining highly-available systems, including cloud-based infrastructure. - Proficiency in programming to automate repetitive tasks and reduce manual effort. - Solid understanding of monitoring tools, incident management platforms, and metrics analysis. - Deep knowledge of system performance optimization, troubleshooting methodologies, cloud platforms, databases, CI/CD, distributed systems, and security best practices. - Strong communication skills (written and verbal) to effectively collaborate across cross-functional teams. - Analytical mindset for interpreting data, metrics, and patterns to make informed decisions and predict future issues. - Ability to view interconnected systems holistically, anticipating the broader impact of changes and designing for resilience. Nice to Haves: - Experience with Salesforce, Oracle, Mulesoft, Oracle Integration Cloud, ServiceNow, and custom-built solutions. - Familiarity with cutting-edge technologies and operational practices to drive continuous improvement. - Demonstrated ability to thrive in high-pressure situations with a calm, methodical approach to problem-solving. - Knowledge of systemic thinking to anticipate interconnected system impacts and design for resilience. - Ownership mindset to proactively identify potential problems and areas for improvement before user impact. Pay Range: Canada: $78,500.00 - $125,500.00 CAD Mexico: $493,600.00 - $788,400.00 MXN Brazil: $135,900.00 - $217,100.00 BRL #LI-JD Pay ranges at Ciena are designed to accommodate variations in knowledge, skills, experience, market conditions, and locations, reflecting our diverse products, industries, and lines of business. Please note that the pay range information provided in this posting pertains specifically to the primary location, which is the top location listed in case multiple locations are available. Non-Sales employees may be eligible for a discretionary incentive bonus, while Sales employees may be eligible for a sales commission. In addition to competitive compensation, Ciena offers a comprehensive benefits package, including medical, dental, and vision plans, participation in 401(K) (USA) & DCPP (Canada) with company matching, Employee Stock Purchase Program (ESPP), Employee Assistance Program (EAP), company-paid holidays, paid sick leave, and vacation time. We also comply with all applicable laws regarding Paid Family Leave and other leaves of absence. At Ciena, we are committed to building and fostering an environment in which our employees feel respected, valued, and heard. Ciena values the diversity of its workforce and respects its employees as individuals. We do not tolerate any form of discrimination. Ciena is an Equal Opportunity Employer, including disability and protected veteran status. If contacted in relation to a job opportunity, please advise Ciena of any accommodation measures you may require.

Role Description We are looking for a Senior Python Engineer to play a key role in building the core of our AI platform. In this position, you will design and develop production-grade systems that power intelligent automation, agentic workflows, and large-scale retrieval services. This is a highly technical, hands-on role that involves close collaboration with product and platform teams to transform advanced AI concepts into reliable, scalable, and secure solutions used across our enterprise ecosystem. You will also be responsible to: - Design, build, and maintain AI-powered services and APIs, leveraging LLMs (OpenAI, Anthropic, Qwen, OSS models) and custom ML models. - Develop an enterprise-grade agentic framework that enables orchestration, retrieval, and collaboration between multiple AI agents. - Implement and optimize knowledge retrieval systems and agentic search capabilities using vector databases such as Qdrant and ElasticSearch. - Write well-structured, efficient, and testable Python code for production services, experimentation, and internal developer tools. - Build and maintain shared Python libraries and SDKs used across multiple applications and microservices. - Collaborate with cross-functional teams on architecture, internal protocols, and API standards to ensure consistency and reliability across the platform. - Develop and enhance monitoring, validation, and observability for production-grade AI solutions. - Drive the full software development lifecycle - from design and implementation to deployment, monitoring, and continuous improvement. - Identify and resolve performance bottlenecks, reliability issues, and scaling challenges in complex, data-intensive environments. - Participate in code reviews and technical discussions, mentoring other engineers and contributing to a culture of excellence. Qualifications - Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience. - 5+ years of experience as a Software Engineer, with strong proficiency in Python. - Proven track record of building and maintaining production-grade systems using Python. - Strong understanding of distributed systems, API design, and data-driven architectures. - Experience with relational and non-relational databases (PostgreSQL, Elastic, Qdrant, or similar). - Familiarity with AI/ML system design, including LLM integration and evaluation pipelines. - Knowledge of DevOps and observability practices (CI/CD, monitoring, metrics, and model validation). - Python • FastAPI • LLM APIs (OpenAI, Anthropic, Qwen, OSS) • LiteLLM • Qdrant • PostgreSQL • ElasticSearch • Langfuse • Kubernetes • GitHub Actions • ArgoCD Requirements - Experience working with multiple LLM providers (OpenAI, Anthropic, Qwen, open-source models). - Background in developer platforms or AI infrastructure services. - Familiarity with vector databases, semantic retrieval, and knowledge graph architectures. - Exposure to Langfuse, LiteLLM, LangChain, or similar frameworks. - Experience developing enterprise-scale SaaS or distributed backend systems. - Contributions to open-source projects in Python, AI, or infrastructure engineering. Soft Skills / Personal Characteristics - Excellent communication skills, with the ability to convey complex technical ideas clearly to both technical and non-technical audiences. - Collaborative and proactive approach, comfortable working across teams in a dynamic environment. - Strong analytical and problem-solving abilities, with a focus on continuous improvement and innovation. - Curiosity and a genuine interest in emerging AI technologies and modern backend architectures.

Role Description This is a full-stack software development role responsible for designing and creating features of web applications using a mix of .Net and JavaScript technology frameworks. This is a team-based environment using scrum development practices, working closely with stakeholders to deliver solutions for all aspects of our business. Qualifications - 2-5 years of professional programming experience. - Experience with object-oriented languages including at least C# and JavaScript. - Experience with HTML and CSS and a good knowledge of best practices. - Experience with SQL databases. - Experience with web services. Requirements - Provide time estimates for work effort and complete assigned work during a sprint cycle. - Work alongside all IT Department teams and Product Owner teams. - Work well with others and approach work as a member of a team. - Provide documentation for all completed work (e.g., commented code, discussion in user stories, detailed pull request comments, and wiki articles). - Communicate clearly with both IT and non-IT personnel. - Assist other Development and DevOps team members. - Work with Product Owners to create new user stories and refine existing user stories. - Perform coding tasks with minimal guidance. - Read and understand existing older code and applications. - Learn new technologies as necessary with some guidance. - Be able to stay on task in a work-from-home environment. Preferred Technical Qualifications - Experience with .NET Framework and .NET Core. - Experience with normalized SQL database structures. - Experience optimizing code and SQL to be more performant. - Experience with React and/or Vue. - Experience working in Agile/Scrum. - Experience with functional programming within C# and JavaScript. - Experience with Umbraco CMS, Salesforce and/or HubSpot. Benefits - Health, Dental, and Vision Insurance - 401(K) Matching - Short-Term and Long-Term Disability Insurance - Life Insurance - Paid Time Off - Paid Holidays - Flexible Spending and Health Savings Account - Tuition Reimbursement - Pet Insurance - Employee Assistance Program

• join an IT Quality Assurance team working in an Agile environment • use TypeScript / Playwright to develop test scripts for internal and external web solutions • collaborate with the team to understand feature requirements and translate them into functional automated test scripts • design, develop, and maintain automated test scripts using TypeScript and Playwright • integrate the test scripts into CI/CD (i.e. Azure DevOps) pipelines • test Web, API, and Mobile application interfaces • utilize SQL Server for test data management • advocate for quality across the test development lifecycle • participate in sprint planning, providing insights into test planning, risk assessment, and resource allocation • facilitate the creation and maintenance of test data sets for automated testing needs • monitor and report on key testing metrics • create automated test plans needed to test the application through the test automation framework • work closely with BA’s and the development team • mentor and work closely with other test automation analysts & developer resources