• Primarily responsible for analyzing data integrity challenges including investigating, correcting, and monitoring data (SQL) to help identify and address key data issues. • Facilitate effective communication with client project stakeholders regarding project status and recommendations. • Craft client code that is not just efficient, but also performant, testable, scalable, secure, and of the highest quality. • Actively participate in accurate planning and estimation efforts, utilizing project methods and tools. • Proficiently gather requirements and organize/present developed features for clients. • Execute complex activities within the current methodology and quality standards, showcasing success across diverse engagements. • Promote client success across the team by collaborating with engineers, designers, and managers to understand user pain points, anticipate potential problems, and iterate on solutions that drive client success. • Engage in agile software development, including daily stand-ups, sprint planning, team retrospectives, and other governance activities. • Actively participate in the Engineering Practice community, mentoring others through Communities of Practice (CoPs) or on project teams, and supporting the growth of technical capabilities. • Independently drive project delivery within defined architecture, demonstrating autonomy and accountability in all stages from conceptualization to deployment.

• Design and deliver reusable components within the Mozilla Ads products that support multiple product teams and surface areas • Collaborate closely with Product, Ad Ops, and Data Science to enable enriched measurement, feedback reporting, and experimentation • Implement privacy-preserving features in our Mozilla Ads products, contributing to Mozilla’s vision for ethical advertising • Work with front-end teams across Mozilla to support and extend existing systems to apply innovative ways and technologies in reaching Mozilla’s advertising goals • Help translate product and engineering strategy into actionable tasks and early prototypes, providing feedback where appropriate

• Design, build, and maintain backend services, APIs, and microservices using Golang, Java and Python • Develop RESTful and/or event‑driven APIs with a focus on performance, scalability, and reliability • Write clean, maintainable, and well‑tested code following best engineering practices • Collaborate with cross‑functional teams to translate business requirements into technical solutions • Optimize application performance, troubleshoot production issues, and implement fixes • Implement secure coding practices, authentication, authorization, and data protection standards • Participate in code reviews, design discussions, and architecture decisions • Support CI/CD pipelines and work closely with DevOps teams for deployments and monitoring • Contribute to documentation, technical standards, and continuous improvement initiatives

• Construção de Microserviços: Desenvolver e implementar microserviços utilizando Go e Python, garantindo a escalabilidade e a eficiência das aplicações. • Integração com Mensageria: Projetar e implementar soluções AWS que utilizem sistemas de mensageria, facilitando a comunicação entre diferentes serviços. • Comunicação com APIs: Integrar e gerenciar APIs para garantir a troca eficiente de dados entre sistemas. • Containerização de Aplicações: Utilizar tecnologias de containerização para empacotar e implantar aplicações de forma eficiente, assegurando a portabilidade e a consistência em diferentes ambientes.