Backend Engineer at jil B2B Marketplace · Qatar · 3 - 6 years · $15K - $40K / yr · Raised funding · Posted 6 Feb 2025

Senior Developer should have exposure to building logistics products.
Skilled in RESTful & GraphQL APIs, microservices, and database optimization (MySQL, PostgreSQL, MongoDB).
• Experienced in authentication (OAuth, JWT), caching (Redis, Memcached), and real-time applications (WebSockets).
• Strong knowledge of CI/CD pipelines, Docker, Kubernetes, and cloud deployment (AWS, GCP, Azure).
• Passionate about scalability, performance tuning, security best practices, and clean code architecture.

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Role Overview
We are looking for a Full Stack Developer with strong hands-on experience in Node.js and Angular to build scalable, secure and data-intensive applications. The role involves developing backend services and APIs, responsive web applications, integrations, automated testing and containerized deployments while working closely with product, QA and DevOps teams.
Key Responsibilities
- Develop and maintain full-stack applications using Node.js, TypeScript and Angular.
- Build scalable REST APIs, backend services and microservices using Node.js.
- Develop reusable, responsive and high-performance Angular components and modules.
- Integrate frontend applications with backend APIs and external services.
- Work with PostgreSQL and/or other relational/NoSQL databases, including basic query and performance optimization.
- Implement authentication, authorization and secure API communication using JWT/OAuth and HTTP/HTTPS.
- Work with event-driven architecture and messaging platforms such as Kafka where required.
- Use caching technologies such as Redis where applicable.
- Implement application logging, metrics and distributed tracing, preferably using OpenTelemetry.
- Containerize applications using Docker and work with CI/CD pipelines for build, test and deployment.
- Write clean, modular, reusable and testable code with appropriate unit and integration tests.
- Troubleshoot application, API and performance issues across frontend and backend.
- Participate in code reviews, Agile ceremonies and collaborate effectively with cross-functional teams.
Must-Have Skills
Backend
3–5 years of hands-on Node.js development.
Strong TypeScript / JavaScript skills.
REST API development and microservices.
Express.js / NestJS or similar Node.js frameworks.
PostgreSQL or similar relational database.
Understanding of authentication, authorization and API security.
Hands-on experience with OOJS, ES6 Programming, TypeScript & JavaScript
Experience with Server-Side Rendering and Unit Testing Frameworks
Familiarity with Code Quality tools and processes (ESLint, flowerrors, sonar, etc.)
Frontend
Proficiency in Angular and the latest versions
TypeScript, JavaScript, HTML5, CSS/SASS.
Angular components, services, routing and reusable modules.
Responsive web development and browser compatibility.
Frontend performance and basic accessibility practices.
Deep knowledge of Angular best practices and commonly used modules
Engineering & DevOps
- Docker and containerized application development.
- Git and CI/CD fundamentals.
- Unit/integration testing and code-quality practices.
- Understanding of application logging, monitoring and observability.
- Agile/Scrum development experience.
Good to Have
- React.js experience.
- Kafka, gRPC and Redis.
- Kubernetes and cloud platforms such as AWS/Azure/GCP.
- OpenTelemetry and distributed tracing.
- Experience with high-volume/data-intensive applications.
- Experience with performance tuning and caching.
What We Look For
- Strong problem-solving and debugging skills.
- Ability to work across both frontend and backend independently.
- Good understanding of API, database and application architecture.
- Focus on quality, performance, security and maintainability.
- Good communication and collaboration skills
About VerbaFlo.ai
VerbaFlo.ai is a fast-growing AI SaaS startup revolutionizing how businesses leverage AI-powered solutions. As a part of our dynamic team, you’ll work alongside industry leaders and visionaries to drive innovation and execution across multiple functions.
Role Overview
We are looking for a Senior Backend Engineer to design and develop user-friendly, scalable, and high-performance web applications. This role requires deep expertise in backend technologies, attention to detail, and the ability to collaborate with cross-functional teams.
Responsibilities
- Design, develop, and maintain scalable backend systems, APIs, and data pipelines.
- Collaborate closely with frontend engineers, product managers, and AI teams to deliver cohesive features and seamless user experiences.
- Ensure the reliability, security, and performance of backend systems.
- Write clean, maintainable, and efficient code using modern backend practices.
- Implement automated testing, CI/CD workflows, and infrastructure as code (where applicable).
- Own the end-to-end lifecycle of backend features, from architecture to deployment.
- Monitor production systems and resolve performance and scalability issues.
- Contribute to architectural decisions and help evolve our engineering best practices.
Requirements
- 4–6 years of experience in backend development in startups, preferably in SaaS or AI-driven products.
- Proficiency in Node.js, Python, or Go
- Deep understanding of RESTful API design.
- Strong experience with databases: PostgreSQL, MongoDB, ElasticSearch.
- Exposure to message queues, job schedulers, or event-driven architectures (e.g., SQS, Celery, etc).
- Familiarity with cloud platforms like AWS, GCP, or Azure and containerization tools (Docker, Kubernetes).
- Experience with Git, CI/CD tools, and writing unit/integration tests.
- Strong problem-solving skills and a mindset geared toward performance and security.
- Excellent communication and collaboration abilities.
Why Join Us?
- Work directly with top leadership in a high-impact role.
- Be part of an innovative and fast-growing AI startup.
- Opportunity to take ownership of key projects and drive efficiency.
- A collaborative, ambitious, and fast-paced work environment.
- Perks & Benefits: gym membership benefit, workation policy, and company-sponsored lunch.
If you’re looking for an exciting role that combines strategy, execution, and leadership exposure, we’d love to hear from you!
Key Responsibilities • Design, develop, and maintain scalable backend applications using Node.js, TypeScript, and Express.js. • Build and maintain microservices-based applications and APIs. • Work with MongoDB and at least one SQL database. • Implement Redis caching to improve application performance and scalability. • Work with AWS cloud services and support cloud-based application deployment. • Apply good understanding of network and infrastructure concepts while developing and troubleshooting applications. • Build and maintain CIICD pipelines for automated build, testing, and deployment. • use Git effectively for source control and collaborative development. • Containerize and deploy applications using Docker. • Write and maintain unit test cases using appropriate testing tools/frameworks. • Troubleshoot performance, scalability, and production issues and implement effective solutions. • Take end-to-end ownership of assigned modules and deliverables. • Work independently with minimal supervision and proactively resolve technical challenges.
Must-Have Skills • Node.js • TypeScript • Express.js • MongoDB • SQL — any one SQL database • Redis/ Redis Caching • AWSCloud • Network & Infrastructure fundamentals • Microservices Architecture • Docker • CI/CD Git • unit Testing / Test Automation • Abilityto work independently and take ownership Good to Have • Microsoft Azure knowledge • Experience working With Code Bots / Al-assisted development tools Lead N s Developer Pune • Domain experience in FinTech, Travel, ERP, or IoT Experience &
Other Requirements • 5—7 years Of relevant software development experience. • Strong hands-on experience in backend development using Node.js and TypeScript. • Good understanding Of scalable and distributed system design. • Strong problem-solving, debugging, and analytical skills. • Ability to independently manage tasks and deliver production-ready solutions. • Immediate joiners or candidates With a short notice period are preferred
The recruiter has not been active on this job recently. You may apply but please expect a delayed response.
Key Responsibilities
• Design, develop, test & deploy scalable applications, APIs and features
• Contribute to architecture and distributed system design
• Develop high-quality, maintainable and well-tested code
• Improve system performance, reliability, monitoring and scalability
• Collaborate with Product, Design, Operations & Data teams
• Understand warehouse workflows and translate them into technical solutions
• Mentor junior engineers and contribute to engineering best practices
🔹 Required Skills
✅ 8+ years of software engineering experience
✅ Strong Full-Stack development experience
✅ TypeScript, Node.js, GraphQL & React
✅ AWS / Cloud experience
✅ Strong API & distributed systems experience
✅ Excellent debugging and problem-solving skills
Good to Have: Experience in Supply Chain, Logistics, Warehouse Management or Operations technology.
🛠️ Tech Stack: AWS | TypeScript | Node.js | GraphQL | React
About AbleCredit:
AbleCredit is on a mission to solve the Credit Gap of emerging economies. In India alone, the Credit Gap is over USD 5T (Trillion!). This is the single largest contributor to poverty, poor genie index and lack of opportunities.
Ablecredit is a rare startup because we are probably the only revenue generating GenAI startup in India.
Key Responsibilities:
● Solving highly complex technical challenges and driving large-scale projects; developing robust and scalable web applications using Node.js, MongoDB
● Participate in system design, architecture, and help build scalable, high-performance systems
● Mentor junior engineers (SDEs and SDE-2s), driving technical decisions, and leading entire projects or initiatives
● Conduct code reviews and provide constructive feedback to team members.
● Architect efficient and reusable back-end systems and optimize applications for maximum speed and scalability.
● Implement security and data protection measures.
● Stay updated on emerging technologies and best practices in web development.
Qualifications:
● Bachelor' s degree in Computer Science, Engineering, or a related field.
● Minimum of 5 years of experience in backend web development.
● Proficiency in Node.js and typescript along with their core principles.
● Experience with server-side frameworks such as Express.js.
● Familiarity with database systems such as MongoDB, or PostgreSQL.
● Knowledge of RESTful APIs and asynchronous request handling.
● Excellent problem-solving and troubleshooting skills.
● Ability to work independently and as part of a team in a fast-paced environment.
● Effective communication skills and the ability to collaborate with stakeholders.
● Bonus: can whip up a front end or UI with AI agents or all by yourself.
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.
DataFlow with its best practices in this field such as a high level of data security, cutting-edge technology, rigorous processes, qualified research analysts, and a global network of over 100,000 issuing authorities, verifies professionals credentials from the primary issuer of the document - regardless of its nature.The company complements its advanced verification processes and long-standing industry expertise by adhering to the highest regulatory standards, including the Joint Commission International (JCI), International Organization for Standardization (ISO), and the European Union’s General Data Protection Regulation (GDPR).
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.
- 6+ years of experience in software development with strong expertise in Java (8+), JavaScript, HTML, CSS, PL/SQL.
- Hands-on expertise in frameworks and tools: Spring Boot, ReactJS, NodeJS, REST, SOAP.
- Version Control: Proficient in Git.
- Backend & Databases: Experience with Oracle and Postgres DB (Shining Stars).
- CI/CD Tools: Skilled in Jenkins, GitHub, TDD/BDD.
- Testing Tools: Practical experience with ReadyAPI, Postman, Jest, JUnit.
- Cloud Technologies: Exposure to OCI, Azure, AWS.
- AI Tools: Familiar with GitHub Copilot.
- Containerization & Architecture: Proficient in Docker, Kubernetes (K8s), Microservices, Microfrontend.
- Nice to Have: Test automation experience with Selenium, Java Cucumber, and Kafka
About the Role
SwitchKart is on a mission to make technology more accessible and more sustainable — we're in the business of recommerce, giving old smartphones a second life, cutting down e-waste, and extending the lifecycle of every device we touch.
We're looking for a Senior Full Stack Developer to help us build and scale the ecosystem of platforms powering this mission — from our procurement app to our retailer app, pricing engines, and warranty systems. You'll take ownership of complex features end-to-end, mentor junior engineers, and make architectural decisions that shape how we grow.
What You'll Do
• Own Features End-to-End: Design, build, and ship full stack features across our procurement, retailer, pricing, and warranty platforms — from database schema to UI polish.
• Drive Architecture: Make key technical decisions on system design, scalability, and code structure as our ecosystem of apps grows.
• Build AI-First: Design and build systems with AI at the core — not bolted on. Think about where AI can automate, assist, or enhance the products you're building from day one.
• Build Scalable Architecture: Build and monitor a highly performant, failure-resistant platform — we take pride in doing this with a small, high-ownership team.
• Automate and Integrate: Develop tools that automate our integration processes and build data pipelines across our app ecosystem.
• Foster Technical Excellence: Champion unit and integration testing and lead meaningful code reviews across the team.
• Prototype and Validate: Create interactive prototypes to prove out technical concepts and participate in pilots for new initiatives.
• Mentor the Team: Guide junior developers through code reviews, pairing, and technical direction.
• Report Upward: Provide regular updates to management on milestones, risks, issues, and mitigation plans.
• Collaborate Cross-Functionally: Work closely with product and design to translate requirements into robust technical solutions across multiple products.
What We're Looking For
Must Have
• 4+ years of full stack development experience
• Strong proficiency in React and Node.js
• Solid experience with PostgreSQL or MySQL — schema design, query optimisation
• Experience designing and scaling production systems
• Experience deploying and managing applications on a cloud platform (AWS/GCP or similar)
• Comfortable owning a feature from concept to deployment
• Strong debugging and problem-solving skills
Good to Have
• Experience mentoring or leading junior engineers
• Track record of driving scalability and time-to-market in past cloud architecture decisions
• Exposure to CI/CD pipelines
• Experience with Docker, NoSQL databases, or distributed caching
• Experience integrating third-party REST/SOAP APIs
• Experience in a fast-moving startup environment
Why SwitchKart
• Real ownership over architecture and technical direction.
• Access to the latest AI coding agents and tools — we invest in keeping our engineers on the cutting edge.
• Work on a genuinely differentiated business with measurable impact.
• Be part of a lean team where your decisions shape the product.
• Opportunity to mentor and grow the engineering team.
Role Description
Software Engineer is a full-time role based in Hyderabad with Onsite work arrangement. This role involves designing, developing, and maintaining back-end services and APIs, ensuring high performance, scalability, and security across platforms. The engineer will participate in architecture discussions, code reviews, and technical decision-making, collaborating closely with product owners, QA, and cross-functional teams. Daily responsibilities include writing clean, maintainable code, troubleshooting complex issues, improving system performance, and contributing to best practices, documentation, and engineering standards. The role also includes mentoring less experienced engineers and supporting continuous improvement in development processes and tooling.
Key Requirements/Skills
4-7 years of overall experience in software development with strong expertise in building scalable web & mobile applications.
- Strong technical decision-making ability, including architecture design, technology selection and implementation of best practices.
- Front-end expertise: Strong experience in React, JavaScript, TypeScript, NextJS and building responsive and user-friendly UI/UX.
- Back-end development: Hands-on experience with Node.js, Express JS, Nest JS, RESTful APIs, API design, and server-side architecture.
- Databases : Good Hands on Exprience in both SQL(PostgreSQL Preferred) & No SQL Databases
- Gen AI Expertise: Experience in building RAG & LLM Systems, implementing AI/ML models and integrating AI-based solutions to solve business problems. Expereince with Langchain, langgraph and Vector DBs, Voice AI(STT, TTS) Models and experience in using Open AI Tools (Calude, Cursor, etc.)
- Cloud & DevOps exposure: Experience with AWS/Azure, understanding of CI/CD pipelines, and cloud-based deployments.
- Code quality & best practices: Experience in code reviews, Git version control, and ensuring maintainable and secure code.
- Team leadership: Ability to mentor developers, guide technical discussions, and collaborate across teams.
- Strong communication skills to effectively interact with technical and non-technical stakeholders.
- Experience working in high-compliance environments such as healthcare systems is a plus.
- Certifications in AWS & Other skills and technologies will be an added advantage.
Educational Qualification
- B.Tech / M.Tech in CSE/IT/AI&ML only from a recognized university/college.
We are looking for a Senior Full-Stack Developer with strong experience in modern web and mobile application development.
Requirements:
* 4+ years of full-stack development experience
* Strong Node.js, TypeScript and React.js
* Hands-on React Native experience
* Strong PostgreSQL, Redis and REST API knowledge
* Experience with WebSockets and real-time systems
* Good knowledge of AWS, Docker and CI/CD
* Experience with third-party API integrations
* Strong understanding of scalable architecture and application security
* Experience with GPS/geolocation or real-time applications is a plus
* Strong problem-solving and debugging skills
* Ability to work independently and deliver within tight timelines
* Experience taking applications from development to production
Preferred: Experience in taxi, logistics, delivery, marketplace or booking platforms.














