Python Data Engineer

About

Numispark is a France-based web and mobile development agency. We design, build and maintain custom digital products for clients across France and Europe — mobile applications, booking and marketplace platforms, e-commerce systems and business management tools.

We work with a modern JavaScript stack across mobile and web, and we manage our own production infrastructure. Our engineering culture is remote-first, asynchronous, and built around clear written communication and end-to-end ownership of what we ship.

The Role

We are looking for a Full Stack Developer to build and deliver production applications across mobile and web. You will work across the complete development lifecycle — designing APIs, building cross-platform mobile applications, developing web interfaces, and deploying and maintaining systems in production.

This is a hands-on engineering position with real ownership of features and release cycles. You will see your work reach live users on a short cycle, and you will have meaningful input into technical and architectural decisions.

Key Responsibilities

• Develop and maintain cross-platform mobile applications using React Native for Android and iOS
• Design and build RESTful APIs with Node.js and Express
• Model, query and optimise MongoDB databases for production workloads
• Build responsive web interfaces using React and Next.js
• Deploy and maintain applications on Linux servers using Docker, including CI/CD pipelines, reverse proxy configuration, SSL and database backup procedures
• Manage Play Store and App Store submissions, versioning and release cycles
• Maintain, extend and improve existing production applications
• Participate in code reviews and follow Git-based development workflows
• Communicate progress and technical decisions clearly in written English

Required Qualifications

Experience

• 3–6 years of professional software development experience
• Minimum 2 years of hands-on experience with React Native
• At least one React Native application published on the Play Store or App Store, with a clear description of your contribution

Frontend and Mobile

• React Native — navigation, native module integration, performance optimisation, platform-specific implementation
• React.js — hooks, component architecture, state management (Redux, Zustand or Context API)
• Next.js — SSR, SSG and App Router
• Strong JavaScript ES6+ fundamentals, including asynchronous programming patterns
• TypeScript in production environments
• Firebase — push notifications, analytics and crash reporting

Backend

• Node.js and Express — REST API design, middleware, error handling
• MongoDB — schema design, indexing, aggregation pipelines, Mongoose
• Authentication and authorisation — JWT, OAuth, role-based access control
• Real-time features — WebSockets and Socket.io
• Payment gateway integration — Stripe and Razorpay

Infrastructure and DevOps

• Proficiency on the Linux command line
• Docker — writing Dockerfiles, docker-compose, container troubleshooting
• Demonstrated experience deploying and maintaining applications on self-managed servers
• Self-hosted deployment platforms — Coolify, Dokku, CapRover or equivalent
• CI/CD pipelines with GitHub Actions
• Nginx reverse proxy configuration and SSL certificate management
• Git — branching strategies, pull requests, conflict resolution

Other

• Professional written and spoken English
• Availability for a daily overlap window of 2:00 PM – 7:00 PM IST to align with European business hours

Preferred Skills

The following are not required, but strengthen an application:

Mobile

• React Native New Architecture — Fabric and TurboModules
• Native module development in Swift or Kotlin
• Automated release pipelines with Fastlane or EAS
• Offline-first architecture and local persistence (MMKV, WatermelonDB, SQLite)
• End-to-end mobile testing with Detox or Maestro

Web and Frontend

• Tailwind CSS and modern component libraries (shadcn/ui, Radix)
• Animation and interaction work — Framer Motion, GSAP, Reanimated
• Web performance optimisation — Core Web Vitals, Lighthouse
• Technical SEO fundamentals for Next.js applications
• Accessibility standards (WCAG)

Backend and Data

• Redis for caching and session management
• Job queues and background workers — BullMQ, RabbitMQ
• GraphQL and Apollo
• PostgreSQL and Prisma
• MongoDB replica sets, Atlas administration, aggregation performance tuning
• Automated testing — Jest, Vitest, Supertest

Infrastructure

• Object storage integration (S3-compatible)
• Monitoring and observability — Sentry, Grafana, Uptime Kuma
• Infrastructure automation and shell scripting
• Container orchestration basics — Docker Swarm or Kubernetes
• Database backup, restore and migration procedures at scale

Other Platforms and Tooling

• Flutter
• Shopify theme and app development
• Odoo customisation
• Mapping and geospatial development — Leaflet, Mapbox, MongoDB geospatial queries
• Transactional email and deliverability (Brevo, SendGrid, Postmark)
• AI and LLM API integration in production products
• Working from Figma designs
• Agile delivery with Jira, Linear or similar
• Clear technical documentation writing
• Working knowledge of French

What We Offer

• Competitive compensation of ₹6,00,000 – ₹8,00,000 CTC per annum, based on demonstrated experience
• Fully remote position, open to candidates across India
• Flexible working hours outside the daily overlap window
• International project exposure, working on products for European clients
• End-to-end ownership of features, from design through to production release
• Modern technology stack across mobile, web and infrastructure
• Scope to influence architecture and technical direction
• Continuous professional growth across the full engineering stack

Selection Process

1. Application review
2. Introductory call — 30 minutes
3. Technical assignment — 4 to 6 hours, compensated
4. Live technical discussion — 90 minutes, practical and collaborative
5. Offer

Typical timeline from application to offer: two weeks.

Job Description:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
• 7+ years of experience in backend development, with proficiency in Python and/or Golang.
• Strong experience in front-end technologies, particularly React.
• Familiarity with cloud platforms (AWS, GCP, or Azure) and containerization tools like Docker and Kubernetes.
• Knowledge of Apache Spark is highly preferred.
• Solid understanding of database technologies, both relational (e.g., PostgreSQL, MySQL) and NoSQL (e.g., MongoDB, Cassandra).
• Experience with CI/CD pipelines and automated testing frameworks.
• Excellent problem-solving skills and a proactive attitude toward tackling challenges

Job Description:

We are looking for a skilled BigCommerce Developer. This role involves leading the development and customization of BigCommerce solutions, ensuring smooth execution and delivering high-quality projects. If you're passionate about eCommerce development and thrive in a dynamic environment, this is the perfect opportunity for you!

Key Responsibilities:

• Lead and contribute to the development and customization of BigCommerce and Shopify-based solutions.
• Collaborate with cross-functional teams to define, design, and deliver eCommerce solutions that meet client requirements.
• Develop, test, and maintain websites using web technologies including HTML, CSS, JavaScript, jQuery, ReactJS, and NextJS.
• Ensure that all eCommerce projects are delivered on time, within scope, and within budget.
• Troubleshoot and resolve issues related to website functionality, integrations, and performance optimization.
• Stay up-to-date with the latest BigCommerce platform updates and industry trends.
• Mentor and guide junior developers, providing technical direction and support.

Requirements:

• Proven experience as a Team Leader or Senior Developer in eCommerce development, specifically with BigCommerce and Shopify.
• Strong knowledge of eCommerce platforms (BigCommerce, Shopify) and related integrations.
• Proficiency in web development languages such as HTML, CSS, JavaScript, jQuery, ReactJS, and NextJS.
• Experience with project management tools and methodologies, with a successful track record of delivering projects.
• Strong problem-solving abilities and strategic thinking.
• Exceptional communication and interpersonal skills.
• Ability to adapt and work effectively in a fast-paced, dynamic environment.
• Must be a positive, energetic individual with a winning mentality, curiosity, and creativity.

Desirable Qualities:

• Excellent communication skills, both written and verbal.
• A collaborative mindset with a focus on fostering a positive team culture.
• Eagerness to contribute to the growth and success of the company by bringing innovative ideas and solutions.

We are actively seeking a passionate Developer to lead the design, development, and implementation of cutting-edge software solutions. The ideal candidate will excel in crafting high-quality, innovative, and fully functional software while adhering to coding standards and technical design principles. As a Developer, you will be a key player in our development team, actively contributing to the creation of clean and efficient code.

Job Requirements:

• Proficiency in HTML/CSS, Javascript, Tailwind/ANTD
• Solid experience with Next.js
• Solid Knowledge of redux/redux form/saga
• Additional experience with React Native/JS is a significant plus
• PHP is must

Additional Skills (a plus):

• Docker, Kubernetes (KS8)
• AWS knowledge

Database & Caching:

• Strong understanding of MySQL, including SQL queries and eager loading

Version Control & Project Management:

• Proficiency in Bitbucket
• Familiarity with Jira

Responsibilities:As a Developer, you will be responsible for the following:

• Strict adherence to and suggestions for coding standards
• Staying updated on the latest industry trends, tools, and technological advancements
• Active participation in all phases of the development lifecycle
• Conceptualizing, developing, testing, and deploying software applications and features
• Crafting clean, concise, and efficient code
• Managing code documentation and version control
• Operating in an agile environment, consistently delivering software on a predefined schedule
• Efficiently troubleshooting and debugging software
• Participating in an on-call rotation to promptly address production issues

Steinbeis India

Position: Senior Full Stack Developer

Experience: 2-5 years

Salary: Based upon Industry Standards (Best in Industry)

Job Description: Senior Full Stack Developer (MERN Stack)

We are seeking a highly skilled and experienced Senior Software Developer with a strong background in MERN Stack (MongoDB, Express.js, React.js, and Node.js) development.

Responsibilities:

• Lead and manage a development team, delegating tasks and ensuring effective collaboration.
• Design, develop, and maintain efficient and scalable web applications using the MERN Stack.
• Write clean, well-documented, and high-performing code while adhering to best practices and coding standards.
• Creating schedules and timelines for both you and your team, and ensuring strict adherence to these timelines.
• Implement robust security practices to safeguard data and applications.
• Conduct thorough testing and debugging to ensure the functionality, performance, and security of the applications.
• Work closely with product managers, designers, and other stakeholders to deliver solutions that meet business requirements.
• Provide technical guidance and mentorship to junior developers, assisting them in solving complex problems and improving their skills.
• Stay updated with the latest trends and advancements in MERN Stack development and suggest innovative ideas to enhance our software products.

Requirements:

• Bachelor's degree in Computer Science, Software Engineering, or a related field.
• 2 to 5 years of professional experience in MERN Stack development.
• Strong proficiency in Node.js, React.js, Express.js, MongoDB and java.
• Experience with RESTful API development and integration.
• Possessing a robust understanding of coding.
• Solid understanding of front-end technologies such as HTML5, CSS3, and JavaScript.
• Knowledge of database systems and proficiency in writing efficient database queries.
• Familiarity with version control systems (e.g., Git) and agile development methodologies.
• Excellent problem-solving skills and the ability to think critically.
• Strong communication and interpersonal skills, with the ability to collaborate effectively within a team.

Please submit your resume, along with relevant work samples, highlighting your experience with MERN Stack development.

Location: Gachibowli (Hyderabad)

Website: https://www.steinbeis.in/

equirements:

• Should have 3.6 - 5 Years work experience.
• Should have experience in Node. JS.
• Should have experience in HTML, CSS.
• Should have experience in JavaScript.