About Us Gramian Consultancy is a boutique consultancy specializing in IT professional services and engineering talent solutions. With a strong background in software engineering and leadership, we help companies build high-performing teams by matching them with professionals who truly fit their needs. Role overview Our client operates one of the world's largest online community and discussion platforms, serving millions of users through personalized feeds, search, recommendations, and content discovery experiences. The engineering team is focused on building large-scale distributed systems that power real-time user engagement, content discovery, and personalization at massive scale. We are looking for a Senior Backend Engineer with strong expertise in Python , Go , and distributed systems . This role combines backend development, platform engineering, and cross-functional collaboration with Product, Machine Learning, and Infrastructure teams. The ideal candidate has experience building high-scale B2C systems (10mil+ DAU) , designing resilient backend services, and working in modern cloud-native environments. CONTRACT: Contractor, Subcontractor, EOR, or FTE (depending on location) COMMITMENT: Full-time LOCATION: Brazil, Argentina, Mexico, Guatemala, Panama, Chile PROCESS: Introductory Call → 3 Client Interview Stages NOTES: Experience building large-scale consumer-facing platforms is mandatory!. Key Responsibilities Design, develop, and maintain backend services powering personalized feeds, search, and user-facing products Build scalable and reliable distributed systems supporting millions of users Develop high-quality frontend features using React Write clean, maintainable, and high-performance code Design and maintain automated testing frameworks and quality assurance processes Collaborate closely with Machine Learning , Product, and Infrastructure teams Improve system reliability, scalability, and operational performance Contribute to architecture decisions and platform evolution Participate in debugging, monitoring, and production issue resolution Requirements 5+ years of software engineering experience in production environments Strong proficiency in Go and Python Experience building and operating distributed systems at scale Strong frontend experience with React and modern JavaScript development Experience with Redis , PostgreSQL , Cassandra , or similar database technologies Strong testing mindset with experience in automated testing and debugging Experience with Docker , Kubernetes , and modern CI/CD workflows Experience with public cloud platforms such as AWS or GCP Experience working on the backends of large-scale B2C applications (10M+ daily active users) , optimizing for high throughput and reliability