Python & React Full Stack Developer

Job Title : Python Developer - Web3 (Mandatory) & Trading Bot Creation (Optional)

Experience : 2+ Years

Location : Noida (On-site)

Working Days : 6 Days WFO (Monday to Friday - WFO & Saturday - WFH)

Job Type : Full-time

Mandatory Skills : Python, Web3 (web3.py/ethers), smart contract interaction, real-time APIs/WebSockets, Git/Docker, security handling.

Responsibilities :

• Build and optimize Web3-based applications & integrations using Python.
• Interact with smart contracts and manage on-chain/off-chain data flows.
• Ensure secure key management, scalability, and performance.
• (Optional) Develop and enhance automated trading bots & strategies.

Required Skills :

• Strong experience in Python development.
• Proficiency in Web3 (web3.py/ethers) and smart contract interaction.
• Hands-on with real-time APIs, WebSockets, Git/Docker.
• Knowledge of security handling & key management.
• (Optional) Trading bot development, CEX/DEX APIs, backtesting (pandas/numpy).

Location : Bengaluru, India

Type : Full-time

Experience :4-7 Years

Mode :Hybrid

The Role

We're looking for a Full Stack Engineer who thrives on building high-performance applications at scale. You'll work across our entire stack—from optimizing PostgreSQL queries on 140M+ records to crafting intuitive React interfaces. This is a high-impact role where your code directly influences how sales teams discover and engage with prospects worldwide.

What You'll Do

• Build and optimize REST APIs using Django REST Framework handling millions of records
• Design and implement complex database queries, indexes, and caching strategies for PostgreSQL
• Develop responsive, high-performance front-end interfaces with Next.js and React
• Implement Redis caching layers and optimize query performance for sub-second response times
• Design and implement smart search/filter systems with complex logic
• Collaborate on data pipeline architecture for processing large datasets
• Write clean, testable code with comprehensive unit and integration tests
• Participate in code reviews, architecture discussions, and technical planning

Required Skills

• 4-7 years of professional experience in full stack development
• Strong proficiency in Python and Django/Django REST Framework
• Expert-level PostgreSQL knowledge: query optimization, indexing, EXPLAIN ANALYZE, partitioning
• Solid experience with Next.js, React, and modern JavaScript/TypeScript
• Experience with state management (Zustand, Redux, or similar)
• Working knowledge of Redis for caching and session management
• Familiarity with AWS services (RDS, EC2, S3, CloudFront)
• Understanding of RESTful API design principles and best practices
• Experience with Git, CI/CD pipelines, and agile development workflows

Nice to Have

• Experience with Elasticsearch for full-text search at scale
• Knowledge of data scraping, ETL pipelines, or data enrichment
• Experience with Celery for async task processing
• Familiarity with Tailwind CSS and modern UI/UX practices
• Previous work on B2B SaaS or data-intensive applications
• Understanding of security best practices and anti-scraping measures

Our Tech Stack

Backend

Python, Django REST Framework

Frontend

Next.js, React, Zustand, Tailwind CSS

Database

PostgreSQL 17, Redis

Infrastructure

AWS (RDS, EC2, S3, CloudFront), Docker

Tools

GitHub, pgBouncer

Why Join Us

• Work on a product processing 140M+ records—real scale, real challenges
• Direct impact on product direction and technical decisions
• Modern tech stack with room to experiment and innovate
• Collaborative team environment with a focus on growth
• Competitive compensation and flexible hybrid work model

Click the link below to apply :

https://surl.li/uowuxk

Senior Full Stack Developer:

We are looking for a candidate who has worked with product-based companies.

Total Work Experience: 4–6 Years

Expectations from the Candidate:

• Excellent knowledge of front-end frameworks like ReactJS
• Experience with popular React.js workflows
• Strong hands-on experience in NodeJS development
• Experience working with PostgreSQL
• Understanding of server-client architectures, consuming JSON data from APIs
• Curiosity and a highly collaborative work style — eager to share knowledge and explore new technologies
• Collaborate with cross-functional teams to define, design, and ship new features
• Lead or participate in design reviews, code reviews, and architecture discussions
• Write unit tests to ensure code robustness and reliability
• Work on bug fixing and improving application performance
• Continuously discover, evaluate, and implement new technologies to maximise development efficiency

Desired Skills:

1. Worked on Integrations with Third-Party Systems
2. Worked on AI/ML-based Applications/Products
3. End-to-End Ownership of Production-Grade Products
4. Experience working on Live/Production Deployments for multiple years.

Educational Qualification:

• Bachelor’s Degree in Computer Science, Information Technology, Software Engineering, or a related technical discipline.
• A Master’s Degree (M.Tech/MCA) in a relevant field will be an added advantage.
• Strong academic foundation in Data Structures, Algorithms, Database Management Systems (DBMS), and Software Development Life Cycle (SDLC).

What is company looking for:

Company is looking forward to onboard a diligent Full Stack Developer/ Software Engineer to produce scalable software solutions. You’ll be part of a cross-functional team that’s responsible for the full software development life cycle, from conception to deployment. As a Full Stack Developer. you should be comfortable around both front-end and back-end coding languages, development frameworks and

third-party libraries. You should also be a team player with a knack for visual design and utility.

Responsibilities:

1. Work with development teams and product managers to ideate software solutions.
2. Design client-side and server-side architecture.
3. Build the front-end of applications through appealing visual design.
4. Develop and manage well-functioning databases and applications.
5. Write effective APIs.
6. Test software to ensure responsiveness and efficiency.
7. Troubleshoot, debug and upgrade software.
8. Create security and data protection settings.
9. Build features and applications with a mobile responsive design.
10. Write technical documentation.

Requirements:

1. Backend: Scrapy (Python), Spring (JAVA), Laravel (PHP), MySQL, NoSQL, NGINXPlus.
2. Frontend: Angular 5+ Ngrx/store5.
3. nfrastructure: Google cloud platform (App engine, CloudSQL, BigQuery, PubSub,
4. Firebase Hosting), Scrapy Cloud, Pusher.io (WebSockets), Getstream.io, Filestack,
5. Postmark app, AS2Gateway.
6. Tools: Beanstalk app, Postman app, JIRA
7. 6 years proven experience as a Full Stack Developer or similar role.
8. Experience working with service-oriented architectures and web based solutions.
9. Familiarity with common stacks.
10. Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML,
11. jQuery).
12. Knowledge of multiple back-end languages (e.g. C#, Java, Python) and JavaScript frameworks
13. (e.g. Angular, React, Node.js).
14. Familiarity with databases (e.g. MySQL, MongoDB), web servers (e.g. Apache) and UI/UX design.
15. Experience working on Agile processes (Scrum, Kanban).
16. Experience working on the AWS technologies.
17. Excellent communication and teamwork skills
18. Great attention to detail.
19. Organizational skills.
20. An analytical mind.
21. Degree in B.tech/BE.

Job description

.

Responsibilities:

• Developing all server-side logic, definition, and maintenance of the central database(s), and ensuring high performance and responsiveness to requests from the front-end & Back-end.
• Addressing architectural problems like scalability, availability, etc., and providing solutions for them.
• Developing Database models, APIs, and processes.
• Developing ideas for new programs, products, or features by monitoring industry developments and trends.
• Understand business requirements and translate them into technical requirements.
• Implement user interface components for JavaScript-based web and mobile applications using the React.js open-source library ecosystem.
• Code debugging and performance testing.
• Dealing with clients associated with different projects.
• Developing new user-facing features using React.js.
• Writing reusable, testable, and efficient code.
• Translating designs and wireframes into high-quality code.
• Optimizing components for maximum performance and responsiveness across all devices and browsers.
• Dealing with clients associated with different projects.
• Developing new user-facing features using React.js & Node.js.
• Writing reusable, testable, and efficient code.
• Translating designs and wireframes into high-quality code.
• Optimizing components for maximum performance across a vast array of web-capable devices and browsers.
• Implement user interface components for JavaScript-based web and mobile applications using the React.js & Node.js open source library ecosystem.
• Code debugging and performance testing.

Required Skills:

• Good Experience with Node.js backend development platforms & MongoDB
• Good Experience with JavaScript frameworks and tools such as React.js, Redux, Amber, Web pack, Enzyme, and Flux.
• Understanding of accessibility and security compliance.
• Handling of Asynchronous tasks in frontend and backend both.
• Good to have experience in creating and using Image APIs.
• Prior experience with deployment on AWS and Heroku servers.
• Have good knowledge of Version Control Tools.
• Experience with RESTful APIs
• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
• Bootstrap, HTML & CSS is a must to know.
• Having an understanding of React.js and its core principles is an added advantage.
• Experience with popular React.js workflows (such as Flux or Redux) is an added advantage
• Experience with handling data structures.
• Experience with React.js frontend development platforms.

What we offer:

• A dynamic and collaborative team.
• Tech start-up environment to develop and shape an ambitious business
• Competitive success-oriented remuneration package

Have at least 2 years of experience with two or more development languages. Experience

working on Python is a MUST and that on JAVA is nice to have.

• Experience in building web platform with Angular 9+ (React could be an alternative) is a MUST
• Experience in building applications with containerization like Docker and Kubernetes
• Experience in writing relatively complex DB queries (preferably SQL Server, MySQL). Experience working on No-SQL DB is nice to have.

• Experience in building RESTful APIs using Python and web frameworks such as Spring MVC, Flask
• Experience in working in any of the ORM tools like SQLAlchemy, SQLObject, Storm, Django
• Skillful in writing high-quality, well-tested code
• Proficient in Object-Oriented programming
• Comfortable with Agile methodologies, such as Scrum, Kanban
• Experience in working with JavaScript frameworks (such as ag-Grid, D3) to build in-app reports is nice to have

• Key competencies required: Problem-Solving, Analytical, Collaboration, and Accountability
• An influencer by always advocating for technical excellence and innovation while being open to change when needed

• Resilient in ambiguous situations and can approach challenges from multiple perspectives
• Advantage if has a working knowledge of cloud technology such as AWS, Azure
• Efficiently utilize DevOps tools and practices to build and deploy software
• Have knowledge of Test Driven Development

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.

The Candidate should have knowledge and experience with specified technologies:

• Great at building server-side code in NodeJs & ExpressJs
• Experience with NoSQL databases such as MongoDB
• Experience in building and consuming REST API
• Authentication and authorisation using JWT tokens
• Proficient understanding of code versioning tools, such as Git
• DevOps knowledge especially in AWS EC2 and S3
• Knowledge of headless Chrome, Puppeteer will be huge plus
• Experience in HTML, CSS
• Understanding of React will be a bonus

Level 3 Contractor-to-Fulltime-Programmer Role:

Must have 1-2 years (ideally 12 to 30 months) of post-collegiate professional programming experience at a top SaaS company in React, Typescript, Javascript working within Visual Studio Code and Yarn, leveraging superior techniques with Routing, Components, State, and Props to deliver elegant consumer applications based on dynamic data.

Ability to translate user story completely into exceptional functionality that consistently meets acceptance criteria and delights users.  Ability to convert complex workflows into elegant experiences highly prized.

Experience with Firebase, Firestore, MongoDB, Heroku and other Cloud-based technologies to deliver scalable, performant data-driven applications, with deployments on Kubernetes.  Ideally experienced working with colleagues over Discord.

Ability to exhibit judgment to independently author test suite and testing scripts to evaluate code additions, ensuring no regressions in functionality or user experience.

Proficiency in translating complex mathematical concepts into effective data structures and programming practices.  Personal pleasure in solving mathematical puzzles elegantly is a huge plus.

Bonus for those possessing keen interest in better investing, wealth creation, and FinTech/WealthTech experience.

Collaborate effectively through coding tools such as GitHub, Jira, and Slack.

Enthusiastic, collaborative, driven, curious, professional, fast-paced, detail-oriented.  Clear communicator, flexible work hours to be part of experienced Silicon Valley product team. Able to make constructive contributions to improved team development practices
.

Anticipated first year will be entirely working from home given COVID as Level 3 Contractor, and upon completion of first anniversary will be eligible for sign-on bonus as full time employee. Required to have own effective laptop/development set up and sufficient bandwidth to be exceedingly productive.

We are excited to consider applicants from outside top IITs and top technical cities, so you don’t have to be a graduate of IIT Madras or IIT Bombay, nor living in Bangalore, Pune, or Hyderabad – we are more interested in exceptional and fluent programming talent and passion than just these degrees.  And all that being said, we confess we do have a founding team with degrees and DNA from Stanford, Harvard, and INSEAD.

There will be a technical task/test, a fit/communication interview, and a technical interview.

1. About the Job

Upside Digital is looking for a brilliant mind to help build its portfolio FinTech Startup, https://www.instaval.co/">InstaVal. The role of the FS Developer is ideal for smart coders who have the technical expertise and passion to turn our vision into a living product.

1. You will 

• Work with product lines to implement functional & non-functional business requirements into working software, including APIs, web services, etc.
• Enhance existing web solutions to ensure scalability across customer's new business requirements. 

1. You have

• Good Communication Skills. 
• Good personal work ethics and a well-rounded team player. 
• Ability to own and start projects with the team and manage to deliver in timely manner. 

1. You’re skilled at

• Microsoft .NET Framework (C#).
• Web development (http://asp.net/">ASP.NET, web services, WCF, JavaScript, NodeJS, AngularJS, HTML5, CSS).
• MongoDB or Microsoft SQL, MySQL, NoSQL.
• Staying on top of technology trend and contribute to technical design throughout project.

• Experience or familiar with a SaaS business.
• Past startup experience.

• InstaVal is a tech-enabled Business Valuation and Deal Discovery Platform made to promote equity investments in early stage business.
• Our vision is (i) to empower founders and (ii) enable ecosystem stakeholders to efficiently deliver their set of investment advisory & support services.
• An opportunity for you to be part of a global disruptive startup in the corporate finance space.
• We encourage creative thinking, independent responsibilities for business results & team collaboration.
• We have lives outside of work.

• Airtime: Full-time basis - five days a We’re not civil service officials neither.
• Compensation structure: Salary, Bonus, Equity.
• Location: Dubai,
• Unlimited paid time off as long as you get **** done.
• Start Period: November 2019