MERN Stack Developer

Job Title : Full Stack Developer

Experience : 5+ Years (Mandatory)

Mandatory Tech Stack : Node.js (NestJS), React.js (Next.js), React Native, PostgreSQL, AWS (Hybrid with On-Premise infrastructure) & Docker Swarm & Portainer

Location : Remote

Working Days : Monday to Saturday

Shift : Night Shift

Job Summary :

We are scaling rapidly and looking for a high-impact Full Stack Developer who thrives on solving complex problems across Web, Mobile, and Cloud Infrastructure.

The ideal candidate is hands-on, adaptable, and comfortable working in distributed systems and hybrid cloud environments, delivering end-to-end solutions with ownership and accountability.

Mandatory Technical Skills :

• Backend : Node.js with NestJS
• Frontend (Web) : React.js with Next.js
• Mobile : React Native
• Database : PostgreSQL
• Cloud : AWS (Hybrid with On-Premise infrastructure)
• OS : Linux
• Containers & Orchestration : Docker Swarm
• Container Management : Portainer

🎯 Key Responsibilities :

• Design, develop, and maintain scalable full-stack applications (Web + Mobile)
• Build and manage microservices and RESTful APIs
• Work in distributed and hybrid cloud environments
• Develop cloud-ready solutions and manage deployments
• Handle containerized applications using Docker Swarm & Portainer
• Collaborate closely with Product, DevOps, and Engineering teams
• Ensure application performance, security, and reliability
• Participate in code reviews and follow best engineering practices
• Troubleshoot, debug, and optimize applications across the stack

✅ Required Qualifications :

• Strong hands-on experience with Node.js (NestJS)
• Solid expertise in React.js (Next.js) and React Native
• Experience with PostgreSQL and backend data modeling
• Working knowledge of AWS services in hybrid environments
• Good understanding of Linux systems
• Hands-on experience with Docker Swarm & Portainer
• Strong understanding of microservices architecture
• Ability to manage end-to-end full-stack delivery

⭐ Good-to-Have Skills :

• Experience with CI/CD pipelines
• Exposure to monitoring & logging tools
• Knowledge of event-driven systems
• Experience working in high-availability systems

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.

Full‑Stack Engineer (Python/Django & Next.js)

Location: Bangalore

Experience: 2–8 years of hands‑on full‑stack development

We’re looking for a passionate Full‑Stack Engineer to join our team and help build secure, scalable systems that power exceptional customer experiences.

Key Skills -

• Architect and develop secure, scalable applications

• Collaborate closely with product & design teams

• Manage CI/CD pipelines and deployments

• Mentor engineers and enforce coding best practices

What we’re looking for:

• Strong expertise in Python/Django & Next.js/React

• Hands‑on with PostgreSQL, Docker, AWS/GCP

• Experience leading engineering teams

• Excellent problem‑solving & communication skills

If you’re excited about building impactful products and driving engineering excellence. Apply now !!

Job description

Opportunity to work on cutting-edge tech pieces & build from scratch

Ensure seamless performance while handling large volumes of data without system slowdowns

Collaborate with cross-functional teams to meet business goals

Required Skills:

Frontend: ReactJS (Next.js must)

Backend: Exp in Node.js, Python, or Java

Databases: SQL (must), MongoDB (nice to have)

Caching & Messaging: Redis, Kafka, or Cassandra exp

Cloud certification is a bonus

You should have

• Degree in Computer Science or relevant field
• Strong knowledge and understanding of JavaScript and TypeScript
• Knowledge of multiple frontend languages and frameworks including HTML, CSS, SCSS, JavaScript and React.
• Knowledge of backend languages and frameworks primarily Node.js
• Familiarity with SQL databases (e.g. PostgreSQL)
• Knowledge of Docker, and Kubernetes would be a plus.
• Leadership skills for guiding and mentoring teammates.
• Understanding of CI/CD Concepts
• Awareness of key concepts in DevOps and Agile principles

Perks

• Flexible working hours - employee tracking is never a thing
• A fun and close-knit agile team.
• Open office layout that promotes collaboration, conversation, and camaraderie – the result-oriented team.
• Recreational activities to keep you away from the screen and live, laugh, and enjoy with the team.

• You will hold the beacon for development and user experience at a company while helping us scale from 3 million users to 50 million users
• Build performance and effective new features by participating in the overall application lifecycle
• Build modular, reusable, performant, and optimal features both in frontend and backend
• Code, debug, troubleshoot, deliver
• Help maintain and improve existing data structures while planning and implementing new model data structures for scalability
• Continuously improve stability and performance of company’s tech platform
• Be the user’s voice and help make product decisions
• Exhibits knowledge and behavior to adopt Information Security and Privacy practices at their work.

• 1 - 4 years experience as a Full-Stack Developer
• In-depth understanding of the entire web development process (design, development, and deployment)
• Proficiency with Nodejs, MongoDB, AWS.
• Proficiency with front-end languages (e.g. HTML, JavaScript, and CSS)
• Team Building & Leadership
• Want to interact with all levels of the company including senior leaders and cross-functional teams
• Love problem solving and thrive on handling multiple projects and tasks
• Foster strong professional relationships with the full organization
• Sense of ownership and pride in your performance and its impact on the company’s success