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.

• A Java Full Stack Developer is responsible for designing, developing and maintaining the full stack of an application using Java programming language
• They are expected to have expertise in both front-end and back-end development, as well as the ability to integrate the two
• Key responsibilities include: Design, develop, and maintain both client-side and server-side applications
• Write clean, efficient, and well-documented code
• Develop and implement RESTful APIs
• Collaborate with other developers to integrate user-facing elements with server side logic
• Test and debug applications
• Stay up to date with emerging trends and technologies in web development
• Requirements for the role include: Strong experience with Java and Java-based web development frameworks
• Experience in front-end technologies such as HTML, CSS, JavaScript, and Angular or React
• Experience with databases (eg, MySQL, MongoDB) and ORM (Object Relational Mapping) frameworks
• Familiarity with Agile software development methodologies
• Good understanding of RESTful API design
• Ability to write well-documented, reusable, and testable code

Please share the below details with your updated CV

Exp:

CTC:

Expectation:

Current Location:

Preferred Location:

Notice Period

Regards,

Rashmi

Full Stack Engineer (RUBY ON RAILS + REACT)

About Us

DirectShifts has set out to modernize healthcare recruiting. We're a team of physicians, entrepreneurs, and problem solvers who have come together to solve major pain points facing medical professionals today.

We've built a healthcare staffing technology platform that connects healthcare professionals directly with employers by using advanced technologies and digitizing the recruitment and staffing processes. Using an AI-based platform, DirectShifts matches the right clinicians to the right jobs at healthcare employers.

DirectShifts is headquartered in New York, NY and our team is spread across the US and India. Join us!

About What You’ll Be Doing

DirectShifts is growing rapidly and we are looking for a full-stack engineer to join our technical team, working out of India. We need incredibly tenacious engineers who are not only great engineers but who can bring unique value to our rapidly growing team.

If you are passionate about coding – and do it on a day-to-day basis, then this is the place for you.

We are big fans of focusing mainly on two things: 1) talking to users and 2) build products. 

You will be responsible for implementing ideas and mocks for our app (web and mobile) which is used daily by healthcare professionals, internal users, and healthcare employers - you will own the frontend development as well as the building blocks and the APIs that power the web app (and the mobile apps). You need to be comfortable dabbling with some basic infrastructure management on AWS.

About You

Ideal Qualifications

• Recent Hands-on experience with Ruby on Rails and React.js
• 4+ years of work experience, primarily as a full-stack developer
• A strong foundation of Ruby on Rails
• Strong React, HTML, Javascript & CSS skills
• High ownership at all stages of product development - from conception to maintenance
• Adaptability - learn new technologies as and when needed
• Good communication skills to get your point across
• Bachelor in Computer Science
• Ability to work remotely

Bonus Skills

• Redux experience
• Experience with REST APIs
• Experience with cloud services (preferably AWS)

Specifically, You Will:

Work closely with the founders and senior management across various functions. You will have the opportunity to influence the trajectory of the products and of the company. This is a great opportunity to help healthcare systems & professionals become more efficient which directly helps them provide better care, improve outcomes and save more lives!

You will excel if you have

An ability to thrive in a fast-paced environment and the ability to iterate quickly by understanding what users want. 

More about DirectShifts

We have raised more than $45 million from some of the world’s leading investors including Serent Capital, YCombinator, and Soma Capital. We're on a mission to disrupt a massive industry and improve healthcare in the United States by ensuring every patient has easy access to the healthcare they need. At DirectShifts, everyone has a voice to create change and move the needle; no hierarchy, no bureaucracy, no politics, no BS...just real people working on solving real problems.

Key Skills:

            Programming Languages: C#, VB.NET

            Server-Side Technologies: ASP.NET

            Front-End Technologies: Html5, ES5/ES6/ JavaScript, CSS, jQuery, Bootstrap, Ajax, Web

             Sockets

            Database: SQL Server

            Knowledge on below concepts/technologies is an added advantage

            - Cloud Platforms: Azure / Google

            - NodeJS, Mongo DB

            - Redis, RabitMQ, MQTT, Kafka

            - Concept of Continuous Integration / Continuous Deployment

Key Deliverables: Writing codes as per the requirement.

• Bachelor of Engineering or Masters Degree in Computer Science
• MEAN stack developer with
• Experience in software development, prototyping, functional analysis, integration, and testing.
• Experience with Javascript and RESTful technologies including building RESTful APIs
• In-depth understanding of the JavaScript programming languages especially Angular and node.js and the ability to peer review other engineer's code constructively
• Highly skilled at problem-solving, unit-testing, and debugging.
• Expert understanding of best practice engineering principles for building MEAN applications.
• In-depth knowledge of database systems and an understanding of data structures, data normalization, and query performance considerations. Particularly Non-Relational/NoSQL databases including MongoDB.
• Automated unit testing and CI experience
• Ability to effectively communicate technical concepts pictorially, orally or in writing.
• Docker experience desired
• Ability to learn business rules quickly by reading requirements, engaging in conversation, or reverse engineering.
• Expertise in source code control and versioning concepts.

Role Value: By developing highly performant, robust and scalable web services and back-ends, you will have an impact on the latency and accuracy. You will add value to our organization by mentoring and guiding engineers. By spotting opportunities in new technologies and identifying areas where they could be leveraged, you will have a deep impact on our tech stack and the way it benefits the business.

Role: You will work with stakeholders to identify the business problem, and then develop layered architectures that can be delivered in an incremental fashion. You will demonstrate a combination of technical leadership and business acumen by making appropriate trade-offs of technical integrity, complexity, time to market and cost. You are a stellar engineer and will write production quality code 70-80% of the time.

Responsibilities

• Design and implement features spanning across systems in a manner that satisfies requirements of performance, scale, security and robustness
• Contribute to improvement of technology and execution processes in the company
• Collaborate in setting technology standards with technology leaders across the company
• Serve as a knowledge centre on current and emerging technologies, and help train others when required
• Foster a strong technical culture by mentoring other engineers
• Keep up to date with the latest technologies, evaluate new tools
• Should open to work on Golang.

Relevant Experience and Qualifications

• Demonstrated expertise in system-level design of large scale distributed systems on OOPs, and experience with web services and service oriented architectures
• Have 7 - 13 years of professional experience in software development.
• Extensive experience with modern open source systems including relational / non relational data stores.
• Experience with AWS stack, at least the common datastores and services
• Experience with containerization technologies and concepts including Docker
• Basic knowledge about security concepts and secure coding
• Excellent analytical, conceptual and communication skills in spoken and written English.

Progression

• At Devtron Labs you have the opportunity to work in a collaborative and trusting environment allowing you to turn your ideas into reality
• be part of a strong team, where everyone’s opinion matters
• have flexible working hours, and learning & development opportunities
• We trust on you because we are having fully remote work culture
• work in a meritocracy, where you grow professionally by excelling at work

Equal Opportunities: Devtron Labs is, and always will be, committed to diversity and inclusion. We seek Devtronians from all backgrounds to join our teams and encourage everyone to bring their authentic, original and best selves to work.