Senior Full-Stack Developer at Sigma Software

ABOUT THE PROJECT

You will join the x360Portal Team, which owns a React-based portal web application and AWS services. The platform manages user permissions, authentication, public APIs, billing domains, and integrations with other product teams and systems, including Salesforce.
Current major initiatives include:
– Provisioning & SSO Integration for a seamless partner experience
– Salesforce Migration to a unified instance
– React Neon UI migration to an MUI-based unified framework

REQUIREMENTS

– 5+ years of full-stack web development experience (frontend + backend)
– Proven experience deploying applications on public cloud platforms
– Strong proficiency with React.js, JavaScript, and TypeScript
– Experience with backend frameworks in Python (Flask, Django, FastAPI)
– Familiarity with serverless architecture and microservices patterns
– Strong understanding of RESTful APIs and frontend-backend integration
– Experience with SQL and/or NoSQL databases
– Knowledge of web application security best practices
– Experience with testing frameworks (Jest, Cypress, PyTest, Mocha)
– Proficiency with Git and CI/CD pipelines
– Upper-Intermediate level of English, with ability to participate in active communication with the customer and team

RESPONSIBILITIES

– Design, develop, and maintain scalable web applications and services across the full stack
– Build intuitive and responsive user interfaces using React.js with JavaScript/TypeScript
– Develop backend services and APIs using Python or Node.js, integrating with SQL/NoSQL databases and cloud services
– Implement AWS Lambda functions for scalable, serverless workflows
– Optimize application performance, ensuring high availability and scalability
– Collaborate with product managers, designers, and engineers to deliver high-quality solutions
– Write clean, maintainable, testable code following industry best practices
– Troubleshoot, debug, and resolve technical issues across the stack
– Participate in code reviews and uphold coding standards
– Design and document APIs using OpenAPI (Swagger)
– Develop unit tests to ensure code quality and reliability
– Stay current with emerging technologies and trends

WHAT WE OFFER

– You’ll work with modern tech stacks
– Flexibility of remote work
– Be part of a company that values continuous learning, professional growth, and delivering impactful solutions to worldwide customers

COMPENSATION & BENEFITS

– Diversity of Domains & Businesses
– Variety of technology
– Health & Legal support
– Active professional community
– Continuous education and growing
– Flexible schedule
– Outstanding offices (if you choose it)
– Sports and community activities