Colmex
Senior Backend Engineer (Node.js, TypeScript & Azure)
Designs, builds, and maintains scalable backend services and REST APIs for Colmex Group's fintech products, developing cloud-native solutions on Microsoft Azure with Node.js and TypeScript, event-driven architectures, Docker, and CI/CD pipelines while collaborating with frontend, mobile, DevOps, and data teams.
- Compensation
- Not disclosed
- Location
- Tel Aviv-Yafo, Tel Aviv District
- Work setup
- Hybrid
- Seniority
- Senior
- Employment
- Not specified
- Experience
- 5+ years
- Category
- Backend
- Posted
Skills
Must have
- 5+ years of hands-on backend software development experience
- Strong proficiency in Node.js and TypeScript
- Proven experience designing and building scalable REST APIs and backend services
- Solid understanding of microservices and distributed systems architecture
- Strong experience developing cloud-native applications on Microsoft Azure
- Hands-on experience with Azure services (App Services, Functions, Service Bus, Event Grid, Storage Accounts, Key Vault, Application Insights)
- Strong knowledge of SQL and NoSQL databases
- Experience with event-driven architectures and asynchronous processing
- Experience building and maintaining CI/CD pipelines using Azure DevOps or GitHub Actions
- Hands-on experience with Docker and containerized environments
- Strong understanding of software design principles, security, scalability, and performance optimization
- Experience with automated testing and modern software engineering practices
- Familiarity with AI-assisted development tools such as GitHub Copilot, Cursor, or Claude Code
- Excellent problem-solving, communication, and collaboration skills
Nice to have
- Experience with NestJS
- Familiarity with PostgreSQL, MongoDB, Redis, or MSSQL
- Background in fintech, trading platforms, or financial services
- Experience with Kubernetes (AKS)
- Experience developing high-volume, customer-facing systems
Full description
We are looking for a talented and experienced Senior Backend Engineer to join our R&D team at Colmex Group.
In this role, you will design, develop, and maintain scalable, high-performance backend systems that power our fintech products and platforms.
You will work with modern cloud technologies, contribute to architectural decisions, and collaborate with cross-functional teams to build reliable, secure, and innovative solutions in a dynamic technological environment.
Key Responsibilities
- Design, develop, and maintain scalable backend services and REST APIs.
- Build and optimize cloud-native solutions on Microsoft Azure.
- Collaborate closely with Frontend, Mobile, Product, DevOps, and Data teams.
- Improve system performance, reliability, observability, and security.
- Participate in architectural discussions and contribute to technical decision-making.
- Troubleshoot and resolve complex production issues.
- Promote engineering best practices, code quality, automated testing, and continuous improvement.
Requirements
- 5+ years of hands-on backend software development experience.
- Strong proficiency in Node.js and TypeScript.
- Proven experience designing and building scalable REST APIs and backend services.
- Solid understanding of microservices and distributed systems architecture.
- Strong experience developing cloud-native applications on Microsoft Azure.
- Hands-on experience with Azure services such as App Services, Functions, Service Bus, Event Grid, Storage Accounts, Key Vault, and Application Insights.
- Strong knowledge of SQL and NoSQL databases.
- Experience with event-driven architectures and asynchronous processing.
- Experience building and maintaining CI/CD pipelines using Azure DevOps or GitHub Actions.
- Hands-on experience with Docker and containerized environments.
- Strong understanding of software design principles, security, scalability, and performance optimization.
- Experience with automated testing and modern software engineering practices.
- Familiarity with AI-assisted development tools such as GitHub Copilot, Cursor, Claude Code, or similar.
- Excellent problem-solving, communication, and collaboration skills.
Nice to Have
- Experience with NestJS.
- Familiarity with PostgreSQL, MongoDB, Redis, or MSSQL.
- Background in fintech, trading platforms, or financial services.
- Experience with Kubernetes (AKS).
- Experience developing high-volume, customer-facing systems.