Technical Lead – Full stack (React & Python)

Looking for a 5+ years experienced Senior Full-stack Engineer (Backend Heavy) for a research-focused, product-based, US-based Startup.

AI Assistant for Research using state-of-the-art language models (AI Agent for Academic 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). Andwith almost weekly feature launches since our inception, we're 

constantly pushing the boundaries of what's possible. Our team of 

experts in design, frontend, fullstack engineering, and machine learning

are 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 Engineers. 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 conceptualisation, all the way through deployments

* Evolve an 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 a Start-up is a plus point.

Unstop (Formerly Dare2Compete) is looking for Frontend and Full Stack Developers. Developer responsibilities include building our application from concept to completion from the bottom up, fashioning everything from the home page to site layout and function.

Requirements:-

• Write well-designed, testable, efficient code by using the best software development practices
• Integrate data from various back-end services and databases 
• Gather and refine specifications and requirements based on technical needs
• Be responsible for maintaining, expanding, and scaling our products
• Stay plugged into emerging technologies/industry trends and apply them into operations and activities
• End-to-end management and coding of all our products and services
• To make products modular, flexible, scalable and robust

Tech Skill:-

• Angular 10 or later
• PHP Laravel
• NodeJS
• MYSQL 8
• NoSQL DB
• Amazon AWS services – EC2, WAF, EBS, SNS, SES, Lambda, Fargate, etc.
• The whole ecosystem of AWS

Qualifications:-

• Freshers and Candidates with a maximum of 10 years of experience in the technologies that we work with
• Proven working experience in programming – Full Stack
• Top-notch programming and analytical skills
• Must know and have experience in AngularJS 2 onwards
• A solid understanding of how web applications work including security, session management, and best development practices
• Adequate knowledge of relational database systems, Object-Oriented Programming and web application development
• Ability to work and thrive in a fast-paced environment, learn rapidly and master diverse web technologies and techniques
• B.Tech in Computer Science or a related field or equivalent

• Hands-on experience with PHP and frameworks like Laravel, Codeigniter.
• Thorough understanding of React and its core principles.
• Good with JQUERY.
• Database design for scalable and secure system using NoSQL (MongoDB) or RDBMS (MySQL or
• PostgreSQL)
• POC development with other engineers
• Writing Unit testing for a robust system

Are you an experienced full-stack developer with a passion for PHP and CMS? Are you looking for a new challenge in Kolkata? If so, we have the perfect opportunity for you!

Our company is seeking a highly skilled and motivated full-stack backend developer to join our team in Kolkata. As a backend developer, you will be responsible for developing and maintaining different client's web applications, ensuring their performance, security, and scalability.

Requirements:

• Minimum of 5 years of experience in PHP development and CMS(WP, Shopify, Webflow)
• Experience with Laravel, Symfony, or CodeIgniter frameworks
• Proficiency in MySQL, PostgreSQL, or other relational databases
• Experience with front-end technologies such as HTML, CSS, and JavaScript
• Familiarity with server administration and hosting environments
• Excellent problem-solving skills and ability to work in a team environment
• Good communication skills in English
• 
  

Responsibilities:

• Develop, test, and maintain our web applications using PHP and CMS frameworks
• Collaborate with the team to design and implement new features and enhancements
• Troubleshoot and debug any issues that arise with the applications
• Ensure the performance, security, and scalability of the applications
• Collaborate with front-end developers to integrate user-facing elements with server-side logic
• Create and maintain database schemas that represent and support business processes
• 
  

Education and Experience:

• Bachelor's degree in Computer Science or a related field
• Minimum of 5 years of experience in PHP and CMS development
• 
  

Location:

The position is based in Kolkata, and the candidate must be able to work from our office.

We offer a competitive salary package, based on the candidate's experience and skill set. If you are passionate about PHP and CMS development and are looking for a challenging new opportunity in Kolkata, we encourage you to apply for this position. We look forward to hearing from you!

We are searching for Full Stack PHP Developers to join our Tech team. You will work as a part of a Full-stack Tech team that is responsible for all aspects of the ongoing product & services development from the initial specification, through to developing, testing, and launching.

You will be responsible for building multiple platforms; integrating new templates/themes on the platform, maintain the platform etc – end to end development & maintenance of the products & services along with your team of developers.

● PHP 5 or later, MVC frameworks such as Laravel, Code Igniter
● Web services, REST API
● Candidate should have sound knowledge/understanding of Front-end technologies such as HTML & CSS,
JQuery Ajax, Node.js, React JS, Responsive design.
● Server management knowledge such as AWS, apache configuration, linux apt-get, crontab scheduling etc
● Working with MYSQL, writing stored procedures, query optimization.
● Problem solver and go getter
● Write clean, readable code and tests
● Skills of development of basic mobile apps is an addon.
● Candidate's role will require them to communicate with project managers, clients solution architects in the
team and overseas counterparts.
● Be a self-motivated, independent, detail oriented, responsible team-player and exhibit exceptional
relationship management skills
● Help TL/PM in project estimations as & when required

We’re looking for a Full Stack developer who will take on a key role on our team. This Full Stack developer must have knowledge in all stages of software development.

You’ll be working alongside other engineers and developers, collaborating on the various layers of the infrastructure for our client.

Full Stack Developer Skills and Expertise 

Below is a list of several skills and responsibilities of Full Stack developers.

• Design overall architecture of the web application.
• Maintain quality and ensure responsiveness of applications.
• Collaborate with the rest of the engineering team to design and launch new features.
• Maintain code integrity and organization.
• Understanding and implementation of security and data protection.
• Experienced with PHP, MYSQL,
• Proficient experience using advanced JavaScript libraries and frameworks such as AngularJS, KnockoutJS, BackboneJS, ReactJS Etc..
• Development experience for both mobile and desktop.
• Understanding of client-Server Architecture.
• Understanding of AWS Management console & its different services like EC2, RDS, Route53 Etc..
• Experience with cloud message APIs and usage of push notifications.
• Knowledge of code versioning tools such as Git, Bitbucket or SVN.
• Must be good understanding in HTML5 & CSS3.
• Must be good understanding at running command via SSH using CLI
• Experience working with graphic designers and converting designs to visual elements.
• Must have good understanding about MVC architecture.
• Having knowledge on CMS like WordPress, Magento, Shopify will be additive advantage.