Summary: Ciklum is seeking a Senior JavaScript Engineer to design high-performance architectures, develop microservices, and implement cloud-based systems for global-scale business needs. Highlights: 1. Take ownership of the full software development lifecycle 2. Develop robust, scalable backend systems using Node.js & Next.js 3. Work on large-scale projects that redefine industries **Ciklum** is looking for a **Senior JavaScript Engineer** to join our team in Argentina. We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live. **About the role:** As a Senior JavaScript Engineer, you'll become a part of a cross\-functional development team engineering experience of tomorrow. You will be responsible for designing high\-performance, resilient architectures, developing microservices frameworks, and implementing cloud\-based data platform systems to support global\- scale business needs. You will also work on infrastructure automation, CI/CD pipelines, and Terraform\-based deployments An American partner known for selling and distributing tickets for various events. One of the leading providers of booking and ticketing services in the arts and entertainment industry, operating on a global scale. **Responsibilities:** * Take ownership of the full software development lifecycle: Engagement from design through development, testing, deployment, and maintenance * Develop and maintain Backend Solutions: Create robust, scalable, and high\-performance backend systems using JavaScript/TypeScript (Node.js \& Next.js) * Design Backend Services: Create RESTful and GraphQL APIs, serverless architectures, microservices, and workflow orchestrations with state machines * Compose system architecture and sequence diagrams: Create and document diagrams to illustrate service interactions and data flows * Database Management: Design, implement, and maintain relational and non\-relational databases focusing on data modeling, integrity, performance, and maintainability * Cloud Services: Utilize AWS services and serverless architectures for deployment and management, including Lambdas, Step Functions (state machines), AppSync, EventBridge, SQS, Kinesis, EC2, Elastic Beanstalk * DevOps Practices: Manage and optimize CI/CD pipelines using GitLab CI/CD for efficient build, test, and deployment processes * Containerization and Orchestration: Utilize infrastructure\-as\-code and container orchestration tools such as Terraform and Kubernetes to manage infrastructure and application scalability * Collaborate with Teams: Conduct code reviews, provide constructive feedback, and share knowledge with the team * Agile Methodologies: Work in a Lite Agile environment to adapt to changing requirements **Requirements:** * 5\+ Years of Backend Development Experience: Extensive experience with backend technologies * Proficient in Javascript/Typescript \+ Node.js \& Next.js: Deep understanding of Javascript/Typescript and it's frameworks/libraries/tools * Analysis of architecture and service dependencies: Abitlity to create sequence diagrams and technical documentation based on implementation requirements * Experience with GraphQL and REST: Expertise in API design, consumption and it's architecture * Database Skills: Hands\-on experience with SQL and NoSQL databases, as well as ORM tools * AWS Services and Serverless Computing: Excellent knowledge of AWS services and serverless computing (Lambda, Step Functions, AppSync, EventBridge, etc.) * Devops, CI/CD: Proficiency with CI/CD tools, especially GitLab CI/CD * Kubernetes and Terraform: Experience with Kubernetes and Terraform for container orchestration and infrastructure management * Fluency in English: Excellent communication skills both written and spoken * Openness and adaptability: with willingness to learn new tools and technologies as needed **Desirable:** * React, Java, Spring **What\`s in it for you?** * Care: your mental and physical health is our priority. We ensure comprehensive company\-paid medical insurance and mental health programs, 5 undocumented sick\-leave days per year * Tailored education path: boost your skills and knowledge with our regular internal events (meetups, conferences, workshops), Udemy license, language courses and company\-paid certifications * Growth environment: share your experience and level up your expertise with a community of skilled professionals, locally and globally * Long\-term employment with 20 working\-days paid vacation and local bank holidays * Flexibility: 100% remote work mode * Opportunities: we value our specialists and always find the best options for them. Our Internal Mobility Program helps change a project if needed to help you grow, excel professionally and fulfill your potential * Global impact: work on large\-scale projects that redefine industries with international and fast\-growing clients * Welcoming environment: feel empowered with a friendly team, open\-door policy, informal atmosphere within the company and regular team\-building events **About us:** At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting\-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress. As we expand into Latin America, every Ciklumer is helping to shape our story. Collaborate with seasoned experts and make a global impact backed by two decades of industry leadership. Want to learn more about us? Follow us on Instagram, Facebook, . **Explore, empower, engineer with Ciklum!** Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum. REQUIRED SKILLS AWS JavaScript Next.js Node.js TypeScript JOB INFO Job Identification 2434 Job Category Software Engineering Posting Date 03/18/2026, 06:54 AM Locations AR\-Remote (Remote)