Software Developer

About the Job

This is a full-time role for a Senior Fullstack Engineer at Spark Eighteen. We are seeking an experienced and influential developer to lead the design, architecture, and implementation of cutting-edge, end-to-end solutions. This role requires a deep expertise in both frontend (React) and backend (Node.js) technologies, along with the ability to provide strong technical leadership and drive innovation across the full technology stack. The job location is for the Saket office in Delhi NCR.

Responsibilities

• Lead the development of major features and complex project components across the full stack, ensuring high-quality, scalable, and secure delivery.
• Design and architect efficient, maintainable solutions for both client-side and server-side systems.
• Provide technical leadership and mentorship to junior and mid-level developers, fostering a culture of engineering excellence.
• Drive the adoption of new technologies and best practices to enhance application performance, security, and reliability.
• Collaborate closely with product managers, designers, and other engineers to translate business requirements into robust technical solutions.
• Conduct architectural reviews, make strategic technical decisions, and implement risk mitigation strategies for technical challenges.
• Champion code quality initiatives and enforce coding standards across the team.

Requirements

Technical Skills

• 3+ years of professional experience in software development with a strong fullstack background.
• Mastery of HTML5, CSS3, and advanced JavaScript (ES6+), including asynchronous programming.
• Strong proficiency in React or Next.js, with deep experience in state management libraries like Redux or Context API.
• Proven experience with modern frontend build tools (e.g., Webpack, Babel) and testing frameworks (e.g., Jest, Cypress).
• Deep professional experience in Node.js and TypeScript, including advanced patterns and debugging techniques.
• Strong understanding of API security (JWT, OAuth), caching strategies (Redis/Memcached), and data encryption.
• Proficiency with cloud providers (AWS, GCP, Azure), serverless frameworks, and cloud databases (e.g., DynamoDB).
• Thorough understanding of security best practices across the full stack (e.g., XSS, CSRF, TLS/SSL).
• Proficiency with advanced Git workflows, CI/CD pipelines, and collaborative development processes.

Soft Skills

• Excellent cross-functional communication skills, with the ability to articulate complex technical concepts clearly.
• Proven technical leadership and a passion for mentoring and elevating the skills of team members.
• Strategic thinker with robust analytical, problem-solving, and risk assessment capabilities.
• Strong ability to align technical initiatives with broader business strategy.
• A collaborative approach and a commitment to continuous learning and technical excellence.

What We Offer

• Professional Growth: Continuous learning opportunities through diverse projects and mentorship from experienced leaders.
• Global Exposure: Work with clients from 20+ countries, gaining insights into different markets and business cultures.
• Impactful Work: Contribute to projects that make a real difference, with solutions generating over $1B in revenue.
• Work-Life Balance: Flexible arrangements that respect personal wellbeing while fostering productivity.
• Career Advancement: Clear progression pathways as you develop skills within our growing organization.
• Competitive Compensation: Attractive salary packages that recognize your contributions and expertise.

Our Culture

At Spark Eighteen, our culture centers on innovation, excellence, and growth. We believe in:

• Quality-First: Delivering excellence rather than just quick solutions.
• True Partnership: Building relationships based on trust and mutual respect.
• Communication: Prioritizing clear, effective communication across teams.
• Innovation: Encouraging curiosity and creative approaches to problem-solving.
• Continuous Learning: Supporting professional development at all levels.
• Collaboration: Combining diverse perspectives to achieve shared goals.
• Impact: Measuring success by the value we create for clients and users.

Apply Here - https://tinyurl.com/mr46nanf

Looking for 5+ years experienced Senior Fullstack Engineer for research-focused, product-based, US-based Startup

AI Assistant for Research using state of the art language models (ChatGPT for Research)

At SciSpace, we're using language models to automate and streamline research workflows from start to finish. And the best part? We're already making waves in the industry, with a whopping 5 million users on board as of November 2025!

Our users love us too, with a 40% MOM retention rate and 10% of them using our app more than once a week! We're growing by more than 50% every month, all thanks to our awesome users spreading the word (see it yourself on Twitter).

And with almost weekly feature launches since our inception, we're constantly pushing the boundaries of what's possible. Our team of experts in design, front-end, full-stack engineering, and machine learning is already in place, but we're always on the lookout for new talent to help us take things to the next level.

Our user base is super engaged and always eager to provide feedback, making Scispace one of the most advanced applications of language models out there.

We are looking for insatiably curious, always learning SDE 2 Fullstack Engineer. You could get a chance to work on the most important and challenging problems at scale.

Responsibilities:

• Work in managing products as part of SciSpace product suite.
• Partner with product owners in designing software that becomes part of researchers’ lives.
• Model real-world scenarios into code that can build the SciSpace platform.
• Test code that you write and continuously improve practices at SciSpace.
• Arrive at technology decisions after extensive debates with other engineers.
• Manage large projects from conceptualization, all the way through deployments.
• Evolve and ecosystem of tools and libraries that make it possible for SciSpace to provide reliable, always-on, performant services to our users.
• Partner with other engineers in developing an architecture that is resilient to changes in product requirements and usage.
• Work on the user-interface side and deliver a snappy, enjoyable experience to your users.

Our Ideal Candidate would:

• Strong grasp of one high-level language like Python, Javascript, etc.
• Strong grasp of front-end HTML/CSS, non-trivial browser-side javascript
• General awareness of SQL and database design concepts
• Solid understanding of testing fundamentals
• Strong communication skills
• Should have prior experience in managing and executing technology products.

Bonus:

• Prior experience working with high-volume, always-available web-applications
• Experience in ElasticSearch.
• Experience in Distributed systems.
• Experience working with Start-up is a plus point.

Python Engineer

Job Description:

• Design, develop, and maintain scalable and efficient micro-services using

Python and related frameworks (e.g., Flask, FastAPI,pytest).

• Develop Python scripts and tools to automate deployment, configuration

management, monitoring, and maintenance of our systems.

• Design and implement API automation tests to ensure the reliability and

performance of our software products.

• Troubleshoot and resolve issues related to automation processes,

performance bottlenecks, and system failures.

• Integrate backend automation processes with CI/CD pipelines for seamless

deployment and continuous improvement.

• Optimize and refactor code to improve the scalability and maintainability of

frameworks/services.

• Collaborate with cross-functional teams to understand automation

requirements and design scalable, efficient backend automation solutions.

• Stay up-to-date with the latest industry trends, tools, and technologies

related to python backend frameworks.

Job Requirements:

• Bachelor's degree in Computer Science, Engineering, or related field (or

equivalent experience).

• 3+ Years of experience as a Python Developer with a strong focus on

automation.

• Proficiency in Python programming, including experience with libraries such

as Flask, Django, or FastAPI.

• Understanding of software design principles, data structures, and algorithms.

• Experience with database systems, including SQL and NoSQL databases.

• Familiarity with version control systems, preferably Git.

• Knowledge of containerisation technologies such as Docker.

• Experience with cloud platforms (e.g., AWS, Azure, Google Cloud) and

infrastructure as code (IaC) tools.

• problem-solving skills and the ability to debug complex automation issues.

• Excellent teamwork and communication skills.

• Ability to work in an agile development environment and adapt to changing

requirements.

Requirements:

• Minimum 3 years of experience in software development into MERN (React & Node.js ) technology.
• Bachelor degree in Computer Science or IT.
• Must have Hands-On coding expertise of React.js, Reactstrap, NodeJS, MongoDB and ExpressJS.
• Configuring and managing deployment on AWS (EC2 IAM, S3).
• Knowledge of developing REST API using Express framework and front end integration with PUG engine.
• Experience with popular JS libraries like Ember, Babel, Typescript, Webpack, Socket etc.
• Exposure to scm tools like git, Git Hub, CI/CD methods, code coverage tools like SonarQube, etc.
• Good understanding of the object-oriented design and programming concepts, core JavaScript concepts like scope/closures, the event loop and asynchronous callbacks, promises, API formation, POSTMAN API etc.

We are looking for a Node.js Developer responsible for managing the interchange of data between the server and the users. Your primary focus will be the development of all server-side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the front-end elements built by your co-workers into the application. Therefore, a basic understanding of front-end technologies is necessary as well.

Responsibilities

• Integration of user-facing elements developed by front-end developers with server side logic
• Writing reusable, testable, and efficient code
• Design and implementation of low-latency, high-availability, and performant applications
• Implementation of security and data protection
• Creating APIs and backend systems
• Scraping sites and creating backend dashboards for data management
• Experience with React.js and native is a plus but not required
• Backend infrastructure management and deployment
• Experience with MongoDB, Express is a plus.

• Design, develop and maintain features, services, products that are part of a company
• Own delivery of said features and services
• Own success of the products by tracking its lifecycle with customers
• Build systems that scale horizontally
• Write automated tests to ensure code quality
• Work with customers to build a product roadmap
• Work with sales & marketing to sell your product to end-users
• Work as an integral part of an agile software development team to build features end-to-end
• Support those features in the company production environment by participating in an on-call rotation

• Bachelor's degree in Computer Science or equivalent work experience
• 3+ years of experience working on teams to develop and deploy web or mobile applications
• Expertise with Javascript and NodeJS; knowledge of frameworks such as React.js is a big plus
• Experience writing and consuming RESTful APIs
• Expertise with data modeling
• Proficiency with git and Github workflows
• Expertise with test-driven development and automated testing
• Proficiency with SQL and NoSQL datastore
• Excellent analytical and problem-solving skills
• Excellent communication skills and fluent English
• Open to learn and work on new technologies