• Identify fruitful directions for exploratory and innovative work • Lead medium- to long-term projects to translate innovative ideas into shipped products in collaboration with engineering teams • Develop high-quality Go and eBPF code for Cilium open-source and Enterprise edition codebases • Collaborate on architecture and design of distributed systems • Possibility to speak at public conferences about achievements (if desired)

• Build and maintain Joybuy's backend systems • Ensure high performance, availability, concurrency, security, and scalability • Identify and mitigate technical risks throughout project implementation • Research, adopt, and promote new technologies and methodologies • Identify integration opportunities between emerging technologies and global system architectures

• Own complex features and subsystems in industry-leading voter/donor management platforms • Combine deep technical depth with systems thinking, identifying technical debt, proposing architectural improvements, and mentoring peers across engineering and QA teams • Participate in system design decisions for complex features • Propose approaches that balance performance, maintainability, scalability, and business needs • Mentor junior and peer engineers through code reviews and design collaboration • Model best practices and drive technical excellence • Design and implement complex features for voter/donor management, third-party integrations, and AI-powered enhancements • Deliver high-quality, maintainable code that meets performance, security, and scalability standards • Proactively identify anomalies, inefficiencies, and technical gaps • Propose and champion improvements that enhance product health.

• Technical and people leadership • Provide technical leadership to the team — defining standards, technical direction, and a code review culture — and mentor team members' growth. • Drive architectural decisions in the AWS environment, evaluating scalability and performance trade-offs. • Manage, coordinate and execute activities. • Participate in business refinement sessions, assessing the technical feasibility of Product team stories and suggesting directions. • Prepare and technically refine requirements and allocate developers to tasks. • Ensure execution of the development → code review → staging/QA → deploy flow. • Develop applications with TypeScript, Node.js (NestJS and Express) and React. • Design and implement the platform’s distributed architecture — microservices, messaging, caching, Pub/Sub, APIs and jobs/cronjobs. • Keep up with the evolution of the ecosystem (including AI) and propose adoptions that deliver real product value.