Senior JavaScript/Node.js Developer, FinTech

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Sigma Software Group

WebsiteLinkedInAll Job Openings

1001 - 5000 employees

Founded 2002

💼 Consulting

🏥 Healthcare

🚘 Automotive

Consulting • Healthcare • Automotive

Sigma Software Group is a multinational company, established in 2002, that specializes in providing high-quality software development, graphic design, testing, and support services. The company focuses on delivering solutions across various industries such as automotive, telecommunications, aviation, advertising, gaming, banking, real estate, and healthcare. Sigma Software values professional growth, offers remote work opportunities worldwide, and caters to world-renowned clients like AstraZeneca, Scania, and SAS. The company emphasizes a culture of continuous education, mentorship, and flexible work environments, making it a preferred workplace for IT specialists aiming to work on complex solutions utilizing cutting-edge technologies. Sigma Software is committed to innovative solutions and engineering the future while also contributing to social causes such as charitable work in Ukraine.

📋 Description

• Design and implement large-scale software solutions and components using multiple technologies, with a primary focus on Node.js and ReactJS • Maintain a consistently high level of quality throughout all stages of the development • Communicate effectively to collaborate closely with the team and gain full context for complex tasks • Follow the best engineering practices, as well as company and client guidelines • Play supervisory, advisory, and coaching roles for less-experienced engineers on the team • Promote clean code, as well as design patterns and principles

🎯 Requirements

• Over 5 years of experience in Back-end software development • At least 3 years of experience with TypeScript • Over 4 years of experience working with Node.js • Practical understanding of MCP architecture and agentic system design • Experience with security aspects of AI Agentic systems and MCP integrations • Strong experience in designing distributed and secure systems • Good Front-end development skills • Good understanding of microservices architectures • Experience in designing, building, and maintaining APIs • Experience in building and consuming REST and/or GraphQL APIs • Familiarity with DevOps practices • Strong experience working with AWS • Good knowledge of testing best practices • At least an Upper-Intermediate level of English • Experience with modern JavaScript and ES6 libraries would be a plus