Backend Architect - Node.js/MongoDB
First seen by Alion on Oct 26, 2026.
About the Organisation:
DataFlow Group is a pioneering global provider of specialized Primary Source Verification (PSV) solutions, and background screening and immigration compliance services that assist public and private organizations in mitigating risks to make informed, cost-effective decisions regarding their Applicants and Registrants.
Headquartered in Dubai, DataFlow has established offices in multiple regions across the globe to cater to its growing business and client base. Through its worldwide locations, DataFlow provides clients across more than 200 countries with multilingual services that are uniquely tailored to their local markets and native languages. Furthermore, the DataFlow Group utilizes the expertise of proficient language partners to further enhance its linguistic capabilities for the purpose of processing documents and certificates.
About the Role:
We are looking for a Backend Architect / Lead who lives and breathes code. This isn't a role for someone who wants to delegate; it's for a technical heavyweight who wants to own core product development, define backend architecture patterns, and build scalable, secure, and resilient systems from the ground up. You will join a fast-paced environment where we ship high-quality code under tight timelines. You'll be expected to take full ownership of our server-side ecosystem, database design, and API layer, ensuring high availability, bulletproof operational excellence, and top-tier performance.
Duties and Responsibilities:
- Architect & Build: Design and implement complex, scalable microservices and monolithic architectures using Node.js, Express.js, and MongoDB (MERN backend stack).
- Heavyweight Coding: Spend the majority of your time writing high-quality, production-ready backend code. You should be comfortable solving complex systems problems using efficient Data Structures, Algorithms, and clean architecture principles.
- Performance & Data Engineering: Own database optimization, query performance, indexing strategies, caching layers (Redis), and system throughput to ensure low-latency API response times.
- Technical Leadership: Establish and enforce industry best practices for REST/GraphQL API design, security standards, code reviews, and automated CI/CD pipelines.
- End-to-End Ownership: Participate in the full SDLC - from initial ideation and system design to deployment, infrastructure setup, and production monitoring on AWS.
Qualifications:
- The Deep Diver: You have spearheaded at least one large-scale, complex backend project or system redesign. You can explain every architectural decision, trade-off, database schema choice, and line of code in a deep-dive technical discussion.
- Experience: You have at least 8 years of professional software development experience, with a significant focus on high-traffic, distributed backend systems.
- Tech Stack Mastery: Expert-level proficiency in Node.js, Express.js, MongoDB (Mongoose/Aggregation framework), and TypeScript. Strong hands-on experience with AWS (EC2, S3, ECS/Lambda, CloudWatch) and containerization (Docker).
- Architectural Fluency: A solid understanding of modern backend patterns (Microservices, Event-Driven Architecture, Pub/Sub, Caching strategies, Message Queues like RabbitMQ/Kafka, State Management, and Authentication/Authorization protocols).
- Optimization Expert: Proven experience in tuning database performance, scaling server instances, managing connection pools, and debugging memory leaks or high CPU usage under heavy load.
- Grit & Speed: You thrive in high-pressure environments and enjoy the challenge of meeting tight deadlines without compromising on quality or system reliability.
Skills
Backend Architecture, Node.js, MongoDB, Express.js, Microservices Architecture, REST API, GraphQL, TypeScript