Fullstack Developer

Senior Full Stack Developer

Location: India, Remote

Employment Type: Contract

Department: Engineering

About Us

OpenAssets is building open standards for the next generation of capital markets, providing the trusted foundation for real-world asset tokenization and digital currencies.

We design regulatory-conscious solutions for alternative asset digitization and loyalty programs, enabling organizations to create secure, scalable digital assets and personalized engagement experiences.

Join OpenAssets and help shape the future of digital finance!

Overview

OpenAssets is seeking a Senior Full-Stack Developer to own end-to-end delivery across our multi-tenant platform. This is a hands-on engineering role spanning the full MERN stack: MongoDB schemas, Node.js services, and React.js operator and investor interfaces with working knowledge of EVM-based blockchain systems to support on-chain integrations.

The ideal candidate brings deep experience designing and shipping production systems end-to-end, optimizing backend and frontend performance, integrating with EVM blockchains, and mentoring engineers in a distributed, fast-moving environment.

What You'll Do

• Design, develop, and maintain full-stack web applications across the MERN stack: MongoDB, Express.js, React.js, and Node.js using TypeScript on both client and server
• Build and maintain RESTful APIs with consistent error handling, pagination, versioning, and authentication
• Model, index, and optimize MongoDB schemas using compound indexes, aggregation pipelines, and transactions on replica sets
• Develop responsive React.js user interfaces using modern patterns including hooks, state management, and component-level testing
• Implement authentication and authorization using JWT and role-based access control with secure middleware patterns and OWASP-aligned input validation
• Integrate with EVM-based blockchain systems (Ethereum, Polygon, Arbitrum, Base), including wallet interactions, transaction lifecycle handling, and on-chain/off-chain reconciliation
• Deploy and operate services on AWS using Docker and CI/CD pipelines, with structured logging, monitoring, and on-call participation
• Write automated tests (unit, integration, end-to-end) using Jest, Mocha, Supertest, or similar frameworks
• Conduct code reviews, mentor mid-level engineers, and contribute to engineering documentation and best practices
• Collaborate with product, design, and engineering leadership across time zones to scope features, define API contracts, and deliver end-to-end

Qualifications & Experience

• 8+ years of full-stack development experience
• Strong expertise in MongoDB, Express.js, React.js, Node.js, and TypeScript across both client and server
• Experience designing and operating RESTful APIs and frontend integrations at scale
• Hands-on experience with MongoDB data modeling, compound indexes, aggregation pipelines, and replica-set transactions
• Proficiency in:
• JWT/OAuth-based authentication and role-based access control
• Secure middleware patterns and OWASP-aligned input validation
• Pagination, query optimization, and performance tuning
• Experience integrating with EVM-based blockchain systems (Ethereum, Polygon, Arbitrum, Base), including wallet interactions, transaction lifecycle handling, and on-chain/off-chain reconciliation
• Hands-on experience with AWS infrastructure (EC2, ECS, Lambda, S3, CloudWatch, IAM)
• Familiarity with Docker, GitHub Actions, and modern CI/CD workflows
• Experience writing automated tests across unit, integration, and end-to-end layers using Jest, Mocha, Supertest, Playwright, or Cypress
• Solid understanding of backend and frontend security practices
• Strong ownership mindset and accountability
• Ability to drive technical execution independently and mentor mid-level engineers
• English fluency

Nice to Have

• Fintech, capital markets, or payments experience 
• MongoDB Atlas certification or replica-set tuning expertise
• EVM developer tooling (ethers.js, Hardhat, Foundry)
• Tokenized securities or on-chain asset issuance
• Multi-tenant SaaS architecture
• Event-driven systems (Kafka, SQS, BullMQ)
• GraphQL
• Performance engineering (keyset pagination, caching, Redis) 
• Distributed tracing (OpenTelemetry)
• Infrastructure as code (Terraform, Pulumi, CDK)
• Open-source contributions or technical writing
• CS-related Bachelor's degree
• AWS certifications
• Prior remote-first startup experience.

We are committed to providing equal opportunity for qualified applicants to contract positions, regardless of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status. This is a contract opportunity, not a direct employment role.

Position - Full Stack Developer (MERN + Laravel/PHP)

Responsibilities:

• Front-End Development: Build responsive and modern interfaces using React.js, JavaScript (ES6+), HTML5, and CSS3.
• Back-End Development:
• Develop APIs and server-side logic with Node.js, Express.js, PHP, and Laravel.
• Database & API Work:
• Work with MySQL, MongoDB, and integrate RESTful APIs and third-party services.

Collaboration & Delivery: Contribute in an Agile/Scrum environment, using Git for version control and CI/CD pipelines for deployments.

Problem Solving: Debug, optimize, and ensure scalability and maintainability of applications.

Required Skills & Qualifications:

• Strong knowledge of React.js (hooks, lifecycle, state management).
• Proficiency in JavaScript (ES6+), HTML5, CSS3, and responsive design.Hands-on experience with Node.js + Express.js (middleware, error handling, authentication/authorization).Solid expertise in PHP & Laravel framework (routing, middleware, Eloquent ORM, Artisan CLI).Experience in API design, authentication (JWT, Laravel Sanctum), and integration.Familiarity with Git/GitHub and basic CI/CD tools.Strong problem-solving ability and teamwork in Agile projects.

Firmway

Our software’s are used by large corporates and their auditors for automating balance confirmation and accounts reconciliation. We are looking for a star developer who is looking challenging work, shorter deadlines, kickass mentorship, a rock-solid career growth plan.

About the Role

Firmway is looking for a candidate who is willing to with the FinTech Startup to take it to the next level. The candidate must also possess a strong knowledge of web application development using PHP programming language and MySQL Server databases.

Someone who can take ownership of the responsibility and is willing to go that extra mile. Someone who is hungry for knowledge and wants to climb up the ladder quickly. 

Key Tasks and Responsibilities

• Modifying existing code with new features available in current and future deployments.
• Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality.
• Understand user requirements and prepare an algorithm.
• Write clean, high quality, optimized & reusable code.
• Maintain Security of the Application.
• Identifies competitive advantages and technological trends for the benefit of a company.

Key Skills

• Must be proficient in PHP, Laravel, Mysql, AWS technology stacks.
• Must have experience in working on a framework such as Laravel, front-end development skills including Javascript & JQuery.
• Experience with REST-based API Development.
• Knowledge of Object-Oriented Programming (OOP) Concepts, MySQL, CSS3, JSON, XML & MVC.
• Knowledge of Networking and Versioning.
• Familiarity with SQL/NoSQL databases and their declarative query languages.
• Strong programming skills with an understanding of project cycles, development environments, and source control techniques.

Good to Have Skills:

• Ability to work without supervision.
• Efficiently handles tasks in a reasonable amount of time.
• Ability to communicate with clients, colleagues and management to explain complex issues clearly and concisely.
• Excellent learner.
• Multi-task and manage tasks with varying priorities.

Experience: 1 year.

Education : BE / B.Tech / M.Tech / MCA in CS/IT

Benefits

Being part of a startup that’s turning out to be a game-changer, you will be blessed with:

• Freedom to try new things.
• 2 Saturday’s off.
• Dress code – Casual.
• Take-it-when-you-need-it vacation.

Apply here - https://firmway.in/job

We need multiple MERN stack developers. As a full stack developer, you will be producing scalable software solutions and will be involved in the full software development life cycle, from conception to deployment. You should be comfortable around both front-end and back-end coding languages, development frameworks and third-party libraries. This isn't just another CRUD application. Your challenge will be to deliver a highly-available service on top of a dynamic collection of third-party data sources . Explore the limits of your own resourcefulness by designing human and automated systems that deliver true reliability in an otherwise unpredictable environment.

Tech-Stack: React, Node.js, Javascript, and MongoDB

How You Will Contribute

• Work with the development team to ideate software solutions
• Working through the application development lifecycle to launch
• Conceptualizing, creating and building applications alongside taking designer wireframes and magically turning them into effective code
• Designing user-based interactions through effective front-end architecture
• Develop and manage well-functioning databases and back end applications
• Write effective and scalable APIs
• Leading and developing best practices for Full Stack Developer team
• Developing and designing RESTful services and APIs
• Determining application responsiveness for consumers
• Ensuring company mandate is effectively addressed in technical and developmental aspects
• Create security and data protection settings
• Write technical documentation
• Keeping current with industry trends and developments that can be applied to company needs

Technical Expertise That We Believe Will Make You Successful In This Role

• Min 1 year of experience as a MERN Stack Developer
• Fluency in CSS, JavaScript and HTML
• Understanding of CSS preprocessors including Sass
• Strong knowledge of building effective APIs in Node.js (Express)
• Proficiency in writing effective React components.
• Experience working with MongoDB, Redis and AWS
• Good knowledge of data structures, system design and algorithms
• Bachelor/Master degree in Computer Science
• Soft-Skills That Will Come Handy
• Having a knack for visual design and utility
• Excellent written and verbal communication skills
• Strong attention to detail
• Head for problem-solving
• Having a flexible working style
• Being a team player
• Comfortable with working unsupervised

What We Need

- Solid industry experience

- Web Development using MERN Technologies (Mongo, React / React JS, Express JS or similar, Node)

- Server-side scripting skills with Node.JS

- Good understanding of client-side scripting and JavaScript frameworks, including jQuery.

- Databases - MongoDB, PostGreSQL, Cassandra

Good to Have

- Open Source Contributors (esp. Javascript to be evident from GitHub)

- Notice period to be less than 30 days

Requirements

• Minimum 2+ years' experience as a software developer.
• Highly experienced with backend programming languages - NodeJs or Java etc, Highly experienced with front-end programming languages - HTML, CSS JavaScript, etc Proficient experience using - advanced JavaScript libraries and frameworks.
• Familiarity with Git.
• Experience consuming API endpoints.
• Good to have - Kafka/queuing system
• Should be well-versed in using multiple Databases - SQL/NO SQL.
• Should have experience using in- memory Data Bases-Redis.
• Experience with Unit-Testing.
• Experience building web applications with responsive design.
• Experience with Node.js and/or other server-side JavaScript technologies and tools.
• Strong knowledge of design principles, user interfaces, web standards and usability.
• ES6 React JS/JSX, Redux, Web pack, Immutable.js .

• 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

RESPONSIBILITIES:

Program daily in Node.JS, Angular2+/React JS, Express, Bootstrap, MongoDB and others.

Build web-based and mobile-first front-end GUIs to support workflows.

Integrate with REST APIs and relational databases.

Build out new features and iterate on existing features.

Design and implement low-latency, high-availability and performant applications.

Help define architectures and design patterns.

Participate in code reviews.

Must have experience in Deployment

SKILLS AND EXPERIENCE:

Real world web and service development experience.

Deep Experience with modern frameworks such as Node.JS, Angular2+/ React , Express & MongoDB.

Experience with server-side languages like Jade, EJS, etc

Experience with HTML5 & CSS3 frameworks such as bootstrap.

Experience with web services API integration (Rest, JSON, XML).

Experience in anyone one these Docker, Kubernates, AWS, Azure

1. Strong fundamentals OOPS concepts, Exception Handling, Coding Standards, Logging

2. Creating custom, general use modules and components which extend the elements and modules of core Angular. 

3. Creating configuration, build, and test scripts for Continuous Integration environments

4. Communicating with external web services and processing data

5. Experience with offline storage threading and performance tuning

6. Review code and maintain the code quality and suggest best practices

7. Knowledge and experience on data science and programming languages

8. Demonstrable abilities to optimize code. Strong analytical skills for effective problem solving