Graphic Designer

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.

• 8+ years of experience in Vertex
• Hands on consulting experience on SAP Indirect Taxes / Taxes on Sales & Purchase
• Must have fundamental knowledge / understanding on Indirect tax regulation and standard within CE, NAM, LATAM
• Must have implementation & support experience on Vertex O series On Demand.
• Mush have knowledge on integration of Vertex with other system like SAP S/4HANA, Ariba, Concur etc
• Experience in Automobile industry preferable.
• Customize Vertex settings to support business-specific tax needs and scenarios.
• Perform regular system checks and updates to maintain tax compliance and accuracy.
• Analyze current tax processes and recommend improvements to enhance efficiency and accuracy.
• Work closely with finance, IT, and compliance teams to ensure smooth integration and operation of tax automation systems
• Strong understanding of SAP modules (e.g., SAP FI, SAP SD, SAP MM, etc.) and their integration with Vertex.

1. Working on MERN stack product development for core product
2. Exploring possibilities with proof of concepts & prototyping
3. Building the product as per specifications 
4. Developing the user-facing features using React.js
5. Designing a modern highly responsive web-based user interface 
6. Building reusable components and front-end libraries for future use
7. Translating designs and wireframes into high-quality code
8. Learn and understand user interactions
9. Optimising components for maximum performance across a vast array of web-capable devices and browsers 
10. Coordinating with various teams working on distinct layers
11. As a React.js Developer, you will be involved from conception to completion with projects that are technologically sound and aesthetically impressive. 

1. Node.js & ReactJS/Next.js ( MEAN/MERN Stack)
2. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
3. Thorough understanding of React.js and its core principles
4. Prior experience with popular React.js workflows (such as Flux or Redux)
5. Familiarity with more current specifications of EcmaScript
6. Familiarity with RESTful APIs
7. Great CSS skills. Familiarity with React Styled Components, SCSS, LESS, etc.
8. Knowledge of modern authorisation mechanisms, such as JSON Web Token
9. Familiarity with modern front-end build pipelines and tools
10. Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
11. Ability to understand business requirements and translate them into technical requirements
12. A knack for benchmarking and optimisation.
13. Familiarity with code versioning tools
14. Familiarity with Test Driven Development and tools like JEST & React Testing Library is a plus.
15. Familiarity with Firebase and other backend as a services is a plus.

Roles and Responsibilities

• Manage large amounts of inbound calls/emails/chats in a timely manner
• Follow communication scripts/templates when handling different topics
• Identify customers needs, clarify information, research every issue and provide solutions and/or alternatives
• Keep records of all conversations in our contact centre database in a comprehensible way
• Meet personal/team qualitative and quantitative targets

Requirements:

• Graduate / Post- Graduate with 0-6 Months experience in a customer support role
• Exceptional active listening, verbal and written communication skills
• Proficiency with computers, especially with CRM software, and good typing skills.
• Customer focus and adaptability to different personality types
• Ability to multi-task, set priorities and manage time effectively
• Ability to work remotely with minimal supervision

Job Description:

Responsibilities:

·

Own end-to-end

execution, measurement, reporting, and optimization of campaigns across

channels with goals to increase New users Acquisition, Scale GMV across the

campaign, and deliver platform GMV & ROAS

·

Partner with

internal teams to optimize campaign performance (targeting, optimization,

creative direction, etc.)

·

On a day-to-day

basis, you will be expected to optimize campaigns based on data breakdowns and

insights.

·

Understand ways to

scale campaigns across platforms in an optimal manner.

·

Perform interest

research in Facebook using audience insights and ads manager.

·

Create audiences on

Facebook for custom, lookalike, and saved audiences.

·

Perform keyword

research using keyword planner and any other tools

·

Understand

operations of Facebook business manager, Google ads, pixels, etc.

·

Create a digital

media plan based on requirements across multiple platforms

·

Understand how

content works across different social media platforms

·

Create insightful

reports based on data from performance marketing campaigns

·

Tag with your copy

and art partners to achieve a digital-first creative output on campaigns.

Eligibility

·

Strong communication

skills

·

Strong creative and

analytical skills

·

Be able to take 100%

ownership of the process from start to finish

·

Strong quantitative

mindset & data-driven approach to digital marketing; expert in excel-based

data modeling, analytics tools.

·

Ability to multitask

in a fast-paced work environment.

·

Punctual and

dedicated to meeting goals & deadlines.

·

Able to effectively

work independently, and as part of a team.

·

An early adopter

attitude towards technology

• Part of the core team responsible for powering the various apps and moving parts of the product
• Architect, build and maintain excellent React Native applications with clean code.
• Integrate third-party API's.
• Release applications to the Apple and Google Play stores.
• Design new and re-design existing user-facing features
• Design, build and own key technology decisions and implementations
• Wear multiple hats - that of an architect, developer or product owner
• Collaborate with other team members to find optimal solutions and engineering workarounds based on resource/time constraints
• Communicate development status and features to the rest of the team members
• Manage interactions with designers, testers and other developers
• Define and enforce front end coding standards, accessibility and other technical standards

Required Skills :

• 4 - 6  years of overall software development experience
• 3+ years of professional experience in Native React
• Highly proficient in rendering components with Native APIs
• Highly proficient in JavaScript, modern JavaScript, HTML, 
• Highly proficient in one or more libraries (e.g. Redux, React Router, etc) for state managing and routing in addition to React.
• Proficient in using Git as a control system 
• Experience with collaborative code development in small agile teams and managing releases (Git, Gerrit, Continuous Integration)
• Outstanding understanding of software design and architecture
• An understanding of React Native best practices and a commitment to following them.
• Ability to work through new and difficult React Native issues and contribute to libraries as needed.
• Ability to create and maintain continuous integration and delivery of React Native applications.