
- Experience working on Node.js with Typescript and Express
- Experience working on rest services-based architecture
- Knowledge in OOPs programming
- Good understanding of HTML, CSS, ES6.
Job Responsibilities
- Design, build and maintain software applications.
- Write well-designed, testable, efficient code by using best software development practices.

About Zeus Learning
About
Zeus Learning is a learning technology solutions provider that focuses on the North American and European educational markets, working with several organizations, from the largest publishers to small nonprofits, over the last 19 years. At Zeus Learning, we leverage leading-edge technology and inclusive design to transform the way learning experiences are created.
Our team of 300+ understands the rigorous demands of the changing educational landscape. We believe that a solution is out there and that by keeping focused on the people we’re designing for and asking the right questions, we’ll get there together. Our line of products and services include Learning Management Systems, Assessment Management & TEI Systems, Software Skills Simulation Systems, Virtual Classrooms, Learning Portals and Websites, Mobile Apps, as well as interactive content such as learning games and explorations.
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We are looking for a highly skilled Full Stack Developer to design and scale our real-time vehicle tracking platform. You will be responsible for building high-performance web applications that process live GPS data and visualize it through interactive map interfaces.
Key Responsibilities
Real-Time Data Processing: Develop robust back-end services to ingest and process high-frequency GPS data from IoT devices.
Map Integration: Design and implement interactive map interfaces using tools like Google Maps API or Mapbox for real-time asset visualization.
Geofencing & Alerts: Build server-side logic for complex geospatial features, including geofencing, route optimization, and automated speed/entry alerts.
API Development: Create and maintain scalable RESTful or GraphQL APIs to bridge communication between vehicle hardware, the database, and the user dashboard.
Database Management: Architect and optimize databases (e.g., PostgreSQL with PostGIS) for efficient storage and querying of spatial-temporal data.
Performance Optimization: Ensure high availability and low-latency response times for tracking thousands of simultaneous vehicle connections.
Required Technical Skills
Front-End: Proficiency in React.js, Angular, or Vue.js, with experience in state management (Redux/MobX).
Back-End: Strong experience in Node.js (Express/NestJS), Python (Django/Flask), or Java (Spring Boot).
Mapping: Hands-on experience with Google Maps SDK, Leaflet, or OpenLayers.
Real-time Communication: Expertise in WebSockets or Socket.IO for live data streaming.
Databases: Proficiency in SQL (PostgreSQL/MySQL) and NoSQL (MongoDB/Redis) for caching.
Cloud & DevOps: Familiarity with AWS (EC2, Lambda), Docker, and Kubernetes for scalable deployment.
Qualifications
Education: Bachelor’s or Master’s degree in Computer Science or a related field.
Experience: 3–6+ years of professional full-stack development experience.
Niche Knowledge: Prior experience with telematics, IoT protocols (MQTT, HTTP), or GPS-based applications is highly preferred.
We are looking for aSenior Full Stack Developerwith strong expertise inJavaScript/TypeScriptand hands-on experience acrossmodern frontend and backend technologies. The ideal candidate should be comfortable building scalable, high-performance web applications and collaborating closely with product, design, and engineering teams.
Key Responsibilities
- Design, develop, and maintainscalable full-stack web applications.
- Build responsive and performantfrontend applications using React.js.
- Develop and maintainbackend services using Node.js and Express.js.
- Design and optimizeSQL and NoSQL databasesto ensure data integrity and performance.
- Build, consume, and documentRESTful APIs(GraphQL exposure is a plus).
- Write clean, maintainable, and testable code following best practices.
- Participate incode reviews, branching strategies, and release processes.
- Collaborate with cross-functional teams to translate requirements into technical solutions.
- Ensure application performance, security, and scalability.
- Contribute to CI/CD pipelines and deployment processes.
Required Technical Skills
- Strong experience withJavaScript and TypeScript.
- Expertise inReact.js, includingHooks, Context API, and state management (Redux / Zustand preferred).
- Solid backend development experience withNode.js and Express.js.
- Hands-on experience with either:
- PostgreSQL(PERN stack)
- MongoDB(MERN stack)
- Strong understanding ofSQL and NoSQL database design principles.
- Experience in building and consumingREST APIs.
- Basic knowledge ofGraphQLis a plus.
- Familiarity withORMs/ODMssuch asSequelize, Prisma, or Mongoose.
- Proficiency withGit, branching strategies, and code review practices.
- Understanding ofDocker,CI/CD pipelines, and cloud platforms (AWS).
Nice to Have
- Experience working withNext.js.
- Exposure tomicroservices architecture.
- Knowledge ofmessage queuessuch asKafka or RabbitMQ.
- Experience building or maintaininghigh-scale or multi-tenant systems.
Soft Skills
- Strong problem-solving and analytical skills.
- Good communication and collaboration abilities.
- Ability to take ownership and work independently.
- Adaptable and eager to learn new technologies.
What you’ll do:
- Build innovative tools and services for your marketing teammates
- Implement reusable components according to the design guidelines and marketing needs
- Optimise speed, performance, accessibility, mobile-friendliness, and health score
- Ensure all marketing services are live with zero downtime strategies
- Collaborate with multiple stakeholders
What it takes :
- You have around 4+ years of experience successfully building scalable and high-performing websites with modern web development architectures – Jam stack, preferably
- You’re experienced in working with Content-as-a-Service platforms like Contentful
- You have a track record of being able to effectively and successfully translate visual design artifacts into functional sites
- Thrive in a dynamic, creative, and innovative focused environment
- You're confident and comfortable working in teams – you know the value of getting a second/third (maybe even fourth) opinion and proactively engaging your team with your work
- You are used to working on projects with deadlines and you’re good at prioritizing your task list
- Your friends would probably describe you as friendly, communicative, and detail-oriented
- You speak, write and read English fluently
Why Hubs
- We offer a competitive salary plus a bonus incentive
- A unique culture that cares about its employees and has built a place where people belong
- Everyone has the opportunity to make an impact from day one, in a high-paced culture to accelerate our growth as we scale!
- Our Hybrid policy is flexible with most employees working 1-2 days in the office per week
- You'll join a diverse, international team of 150+ people from (30+ nationalities) growing to 200+ in the next 12-18 months
- Everyone's a student and teacher with our Career Development Plan, LinkedIn learning platform, Tech Talks, Hackathons, Tech and Product demos, and Innovation Sprints
- Get access to use our global manufacturing network for your own projects
- Free access to https://www.headspace.com/">Headspace meditation app and Mental-Health Support with https://openup.nl/?gclid=Cj0KCQjw5auGBhDEARIsAFyNm9HGIIjV5Mbp5flAhtGyn15mDqTrWn6jNhn2oUNw4sSco73eqQZWt-kaAhCJEALw_wcB">OpenUp
- Stay fit and sign up to https://classpass.com/">ClassPass and join colleagues who run, climb, cross fit
- In-house chef (50% vegetarian) and Dog-friendly office
- Incredible office views in the Houthavens, Amsterdam
- Learn more about us on our https://www.instagram.com/lifeathubs/">Life at Hubs Instagram and https://www.hubs.com/jobs/">Jobs Page
MUST HAVE
- Design and implementation of the overall web architecture using React.js, Node.js, Mongo DB and AWS Lambda and Python
- Must have good knowledge of API
- Deployment and maintenance of AWS infrastructure -- Kubernetes, EC2, S3, Lambda
- Ensuring the entire stack is designed and built for speed and scalability
- Integrating our front-end UI with the constructed API
- Design and implementation of continuous integration
- Working knowledge of web-based application architectures and frameworks (including React) and the way it integrates with services.
Key Skillsets
- Node.js
- React.JS
- AWS
- MongoDB
WE ARE GRAPHENE
Graphene is an award-winning AI company, developing customized insights and data solutions for corporate clients. With a focus on healthcare, consumer goods and financial services, our proprietary AI platform is disrupting market research with an approach that allows us to get into the mind of customers to a degree unprecedented in traditional market research.
Graphene was founded by corporate leaders from Microsoft and P&G and works closely with the Singapore Government & universities in creating cutting edge technology. We are gaining traction with many Fortune 500 companies globally.
Graphene has a 6-year track record of delivering financially sustainable growth and is one of the few start-ups which are self-funded, yet profitable and debt free.
We already have a strong bench strength of leaders in place. Now, we are looking to groom more talents for our expansion into the US. Join us and take both our growths to the next level!
WHAT WILL THE ENGINEER DO?
- Primary Purpose: As part of a highly productive and creative AI (NLP) analytics team, design and develop web applications and SPA’s i.e., UI/UX, and underlying backend – API’s, security framework, scalable microservices etc.
- Daily Grind: Interface with the product manager, project managers, and the engineering team to achieve sprint goals on the product roadmap.
- Career Progression: Senior Full Stack Engineer, Technical Architect
YOU CAN EXPECT TO
- Work in a product-development team capable of independently authoring software products.
- Guide junior programmers, set up the architecture, and follow modular development approaches.
- Design and develop code which is well documented.
- Optimize of the application for maximum speed and scalability
- Adhere to the best Information security and Devops practices.
- Research and develop new approaches to problems.
- Design and implement schemas and databases with respect to the AI application
- Cross-pollinated with other teams.
HARD AND SOFT SKILLS
Must Have
- Problem-solving abilities
- Extremely strong programming background – data structures and algorithm
- Angular/React, Strong UI/UX skills
- Very strong python background, TDD, CI/CD,
- Software design skills i.e., OOPs, design patterns
- SQL, NoSQL – design of schemas and databases
- Microservices architecture, Cloud native apps
Good to Have
- Enterprise Design Patterns
- Distributed Systems
- Exposure to ML and Data Science
- Docker, Kubernetes, AKS, Kafka, Graph databases
We are looking for experienced Full Stack Web Developers. Web Application developer who possesses a passion for pushing web technologies to the limits and will work with our team of talented engineers to design and build the next generation of our web applications.
Responsibilities
- Design and build scalable, mobile-first web applications
- Collaborate with cross-functional teams to define, design, and ship new features
- Unit-test code for robustness, including edge cases, usability, and general reliability
- Work on bug fixing and improving application performance
- Continuously discover, evaluate, and implement new technologies to maximize development efficiency
Skills
- BS/MS degree in Computer Science, Engineering or a related subject.
- 3 to 5 years of industry experience as a Full Stack Developer with focus in React.js and Node.js
- Experience with Express.js and Node.js is a must.
- Experience with third-party libraries and APIs is required.
- Experience using Google Firebase is an asset.
- Experience in UI/UX design is preferred.
- You should also be up to speed on practices like TDD, CI/CD, and pair programming.
- You should be very comfortable working with Agile, Lean and Continuous Delivery practices -- and love it as much as we do.
- Understanding and playing a part in the entire cycle of software consulting and delivery (ideation, project conception, UX, code, testing, deployment, and around again).
- Working knowledge of the general web application landscape, architectures, trends, and emerging technologies.
- Solid understanding of the application development life cycle.
Your Day-to-Day Tasks Include:
Ship product, independently and/or as part of a small team
Collaborate with other engineers to build new features
Debugging using dev consoles, firebug, firecookie, or any of your favorite tools.
Help troubleshoot production issues and resolve critical customer facing issues Provide top-notch support to our customers
You Should Have:
A strong body of prior front end work, including significant projects written in JavaScript. Mastery of JavaScript; expertise in most of the following technologies, and proficiency in all of them: jQuery, CSS, HTML5, AJAX.
Deep understanding of closures, prototypal inheritance, DOM manipulation, HTTP, web security, cross browser compatibility challenges.
Strong Experience with NodeJS and Express JS.
Hands-on with a code management system like GIT, SVN.
Experience with NoSQL databases, preferably CouchDB or CouchBase.
Good to have: Experience with ReactJS and Typescript.
Job Background
We are looking for a Web Developer to join an award-winning, talented team, building the
next-generation automated drone applications for our global customers
As a front-end developer, you will implement a complete user interface in the form of a
web app. A thorough understanding of all of the components of the company’s platform and
infrastructure is required. You will need to take ownership of your projects, which involves
detailing requirements after discussion with the Product Owner, building user interfaces,
developing and maintaining web apps with a focus on user experience
Responsibilities
● Work as part of a team developing applications and services using Agile
development methods
● Contribute to team and organizational improvements in process and infrastructure
● Effectively use tools and ingenuity to identify and fix defects before they become a
problem
● Creating self-contained, reusable, and testable modules and components
● Learn about the domain and competitors to propose new drone apps as well as
improvement for existing apps
● Collaborate on projects with a closely-knit team
Skills/Experience
● 3+ yr experience as an Angular 2+ or React or Ionic Developer.
● Strong expertise with NodeJS, HTML5, CSS, JSON, jQuery, Bootstrap and writing
cross-browser compatible code.
● Knowledge of NodeJS frameworks such as ExpressJS etc.
● Knowledge of Creating RESTful services with Node.js and Experience with Socket.io
● Good understanding of HTML Dom manipulation Technique ●Experience in tested & documented TypeScript/JavaScript, HTML, and CSS
● User authentication and authorization between multiple systems, servers, and
environments
● Understanding of fundamental design principles behind a scalable application
● Proficiency working with source control (git) / versioning systems, continuous
integration in an agile development setup
Good to Have
● Understanding of how to deploy Mean stack applications in AWS/Azure deployment
environment, considering security, reliability etc.
● Knowledge of other python-based server-side frameworks such as Flask or Django








