Prospex CRM: Tech Lead Prospex CRM

Mosaec; Riyadh; On-site; SAR 240,000 - 360,000; Full time

Job summary

Mosaec is seeking a Senior Software Engineer in Riyadh to lead backend design, development, and maintenance of our core services for a procure-to-pay platform. You’ll collaborate with product, frontend, and DevOps teams to deliver scalable, robust systems and APIs that empower customers to optimize procurement workflows.

You will focus on resilient APIs, MongoDB data optimization, and seamless integration with ERP systems, driving performance and reliability across the platform.

Qualifications

• MEAN Stack backend experience with building and scaling complex systems
• RESTful API design and microservices expertise
• Node.js, Express.js or Nest.js experience
• MongoDB proficiency and data modeling/query optimization
• Troubleshooting, debugging, and performance tuning

Responsibilities

• Lead system architecture for backend systems ensuring security, reliability, and high performance
• Develop scalable backend services, APIs, and microservices for procure-to-pay platform
• Collaborate with product and other teams to translate requirements into technical solutions
• Drive integrations with critical third-party systems including ERPs like Oracle Fusion
• Optimize database queries and storage (MongoDB) for performance and scalability
• Troubleshoot and evolve backend systems with upgrades and enhancements
• Mentor junior developers and enforce best practices via code reviews
• Implement monitoring, logging, and alerting for system health and reliability
• Influence backend architecture and technology stack decisions

Job description

Headquarters: Egypt, Bahrain, Turkey

URL: http://prospexcrm.xyz

Senior Software Engineer

About Our Client

Our Client is a fast-growing procurement and technology company headquartered in Riyadh with operations across Saudi Arabia and Bahrain. We are building innovative solutions to simplify procurement processes, empower businesses, and create meaningful impact.

Why Join Us?

We are looking for talented, growth-minded individuals eager to take on new challenges. We nurture potential and provide an environment where every employee can thrive professionally and personally.

Role Summary:

As a Senior Software Engineer, you’ll be a key technical leader, driving the design, development, and maintenance of our core backend services. You’ll collaborate extensively with product, frontend, and DevOps teams to architect and build highly scalable, efficient, and robust systems. Your contributions will directly enable our customers to optimize their procurement workflows and derive critical insights. This role demands a deep focus on crafting resilient APIs, optimizing database structures, and building seamless integration services that significantly enhance system performance and user experience.

What You’ll Do:

• Lead System Architecture: Spearhead the architectural design of backend systems, ensuring they are secure, reliable, high-performance, and align with our long-term technical vision.
• Develop Scalable Solutions: Design and implement sophisticated backend services, APIs, and microservices for our advanced procure-to-pay platform.
• Cross-Functional Collaboration: Partner closely with product and other engineering teams to translate complex business requirements into elegant and effective technical solutions.
• Integrate and Innovate: Drive integrations with critical third‑party systems, including enterprise‑grade ERPs like Oracle Fusion, to expand our platform’s capabilities.
• Optimize and Enhance: Take ownership of optimizing database queries and managing data storage solutions (with a focus on MongoDB), ensuring optimal performance and scalability.
• Troubleshoot and Evolve: Proactively identify, troubleshoot, and resolve complex issues in existing backend systems, implementing upgrades and enhancements to continuously improve performance and scalability.
• Mentor and Elevate: Provide technical leadership and mentorship to junior developers, championing best practices through rigorous code reviews and knowledge sharing.
• Ensure Operational Excellence: Implement comprehensive monitoring, logging, and alerting solutions to guarantee the health, reliability, and proactive management of our systems.
• Strategic Contribution: Play a pivotal role in strategic decisions regarding backend architecture, technology stack selections, and future platform evolution.

What You’ll Bring:

• Extensive Backend Expertise: Strong hands‑on experience as a MEAN Stack Developer with a proven track record of building and scaling complex backend systems.
• Distributed Systems Mastery: Deep experience building distributed and scalable backend infrastructure with a microservices‑first design philosophy.
• API Design Proficiency: In‑depth understanding and practical experience with RESTful API design and microservice architectures.
• Core Technologies: Proficient in Node.js, Express.js or Nest.js, with a solid grasp of building REST APIs, Websockets, SQL/NoSQL Databases (MongoDB), message queues, distributed caches, and data pipelines.
• Problem‑Solving Acumen: Exceptional troubleshooting, debugging, and performance tuning skills.

Nice to Have:

• Experience with GCP deployments and pipeline management.
• Prior experience integrating with external systems, especially ERPs.
• Familiarity with AI/ML concepts and their application in backend services.
• Knowledge of monorepos and tools like Nx.dev.