We are looking for aSenior Developer / Tech Leadto work remotelywho's eager to embark on an exciting new opportunity! Apply hereAbout KWANWe connect IT professionals with projects that match their skills, professional experience, and goals, then we offer a career progression program, delivered by in-house specialists - our People Experience Partners - to guide them through our journey with us.What we are looking for+7 years of experience;Strong experience with PHP (Symfony);Experience with Golang for high-performance services;Experience with Kafka and event-driven architectures (e.g., Outbox Pattern);Proficiency with Redis (caching and distributed systems support);Solid understanding and practical application of DDD (Domain-Driven Design);Experience with AWS (EC2, RDS, MSK);Hands-on experience with Docker and Kubernetes;Experience building and maintaining CI/CD pipelines;Strong experience with REST APIs and integrations;Familiarity with monitoring and observability tools;Fluency in English (minimum B2).What is this challenge aboutLead the design, development, and evolution of backend systems (PHP/Symfony and Go), from architecture to deployment;Define technical direction and make key architectural decisions, including transitioning monoliths to microservices;Build and scale distributed systems, improving performance, reliability, and cost efficiency;Own infrastructure and Dev Ops practices (CI/CD, AWS, Docker, Kubernetes), ensuring zero-downtime deployments and strong observability;Apply best practices in security, performance optimization, and system stability;Use and promote AI tools to improve development workflows and team productivity;Mentor engineers, uphold high engineering standards, and foster team autonomy;Ensure high availability, manage incidents, and maintain production stability;Collaborate cross-functionally to translate business needs into scalable technical solutions.Do you meet most of the position requirements? Then grab this opportunity and apply now!What we offerA project that matches your skills and ambitions, as well as your preferences for working policies and culture;A competitive salary with awesome benefits and opportunities to leverage your knowledge and network to earn additional income;An empowering and respectful work culture enriched with social and learning events;A People Experience Partner specially assigned to you - your go-to career guide, responsible for supporting your growth, facilitating training, and ensuring your work-life balance at KWAN.Some Words From Our Colleagues"At KWAN, they make sure that I feel comfortable with the client I'm working for and that what I'm doing aligns with my career aspirations." - Luis Caldeira, Dev Ops@KWAN