Software Engineer (Backend focused) pubGENIUS is a React.js and Next.js development agency and ad tech startup. We build web and AI products for clients in the US and Europe. Our focus areas include DeFi, fintech, and healthcare.We are hiring a backend developer with strong Node.js and AWS experience. You will work on real client products and internal systems. This is a project based, part-time role.What you will do• Build and scale backend services using Node.js and TypeScript • Design and implement event-driven systems using AWS Lambda, SNS, and SQS • Develop and maintain APIs for web and mobile applications • Write efficient queries for Aurora MySQL and work with Redis where needed • Collaborate with PMs, designers, and developers on delivery • Participate in code reviews, planning, and architecture discussions • Debug production issues and improve system performanceTeam setupYou will join a team of around 15 people. Each project has a project manager. You will work with at least one other developer and receive support from senior engineers.Degree in Computer Science or related field3+ years of software engineering experienceStrong Node.js and JavaScript knowledgeExperience with AWS, especially Lambda, SNS, SQSExperience with event-driven architectureSolid experience with MySQL, ideally AuroraExperience building and maintaining APIsStrong debugging and problem-solving skillsGood communication skills in English, C1 or higherComfortable working in UTC ±3 hoursWhat we look forClear thinking and ownershipAttention to detailAbility to work independentlyStrong collaboration skillsFully remote work from anywhereFlexible hoursPaid vacation and sick days pubGENIUS is a React.js and Next.js development agency and ad tech startup. We build web and AI products for clients in the US and Europe. Our focus areas include DeFi, fintech, and healthcare.We are hiring a backend developer with strong Node.js and AWS experience. You will work on real client products and internal systems. This is a project based, part-time role.What you will do• Build and scale backend services using Node.js and TypeScript • Design and implement event-driven systems using AWS Lambda, SNS, and SQS • Develop and maintain APIs for web and mobile applications • Write efficient queries for Aurora MySQL and work with Redis where needed • Collaborate with PMs, designers, and developers on delivery • Participate in code reviews, planning, and architecture discussions • Debug production issues and improve system performanceTeam setupYou will join a team of around 15 people. Each project has a project manager. You will work with at least one other developer and receive support from senior engineers. Degree in Computer Science or related field3+ years of software engineering experienceStrong Node.js and JavaScript knowledgeExperience with AWS, especially Lambda, SNS, SQSExperience with event-driven architectureSolid experience with MySQL, ideally AuroraExperience building and maintaining APIsStrong debugging and problem-solving skillsGood communication skills in English, C1 or higherComfortable working in UTC ±3 hoursWhat we look forClear thinking and ownershipAttention to detailAbility to work independentlyStrong collaboration skills