Mean Stack Technical Lead

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.

Test Automation & Framework Development

• Design, develop, and maintain scalable web UI automation frameworks using Playwright (TypeScript / Python / JavaScript) following Page Object Model (POM) architecture
• Implement parallel execution, retry strategies, flaky test analysis, and test isolation for reliable, stable test runs
• Create and manage shared utilities — logging, test data handling, Microsoft Teams/Slack integrations, and HTML/Allure reporting
• Define coding standards, perform code reviews, and onboard team members to the automation framework

CI/CD & Pipeline Integration

• Configure and maintain GitHub Actions workflows for automated test execution — integrate with CI pipelines for reporting, failure screenshots, and alerting
• Set up Git-event-driven test triggers and post structured test result summaries to collaboration channels
• Work with shell scripting and Docker basics to support pipeline reliability and scalability

AI Agent Development & Integration

• Contribute to AI-native test automation pipelines leveraging LLM APIs (Claude API / OpenAI) — including intelligent test selection, auto test generation via Playwright Codegen, and automated defect reporting
• Build or support autonomous agent workflows with multi-step reasoning, tool use, and integration with external APIs (GitHub, Jira, REST APIs)
• Develop and refine prompt engineering strategies to build reliable, deterministic agent behavior
• Deploy and monitor AI agents via FastAPI or serverless functions; handle edge cases and output validation

Quality & Reporting

• Perform functional, regression, smoke, and end-to-end test coverage for web platforms
• Manage test data setup and teardown; generate Allure reports and share structured summaries with stakeholders
• Analyze test failures, identify root causes, and drive continuous improvement of test coverage and quality processes

Automation & Testing

• Strong proficiency in Playwright (TypeScript / Python / JavaScript) for web UI automation
• Solid understanding of Page Object Model (POM) and scalable framework design principles — must have designed frameworks, not just written scripts
• Familiarity with BDD frameworks such as Cucumber
• Experience with test runners: pytest or Playwright Test Runner
• Hands-on experience with Selenium WebDriver is a plus

Languages & Tools

• Proficient in TypeScript and/or Python; familiarity with JavaScript is a plus
• Experience with GitHub Actions and CI/CD pipeline configuration hands-on YAML writing required
• Working knowledge of Shell / Bash scripting
• Familiarity with REST API testing and integrations with tools like GitHub and Jira

AI & LLM Exposure

• Working knowledge of LLM APIs (Claude API / OpenAI) for building AI-powered automation or agent workflows
• Hands-on experience with prompt engineering for reliable, structured agent outputs
• Exposure to MCP (Model Context Protocol) or agent skill-based design patterns
• Familiarity with FastAPI for deploying lightweight agent services

Soft Skills

• Strong debugging, analytical, and problem-solving skills — must be able to diagnose failures live
• Ability to independently own modules and drive projects with minimal supervision
• Good communication skills; ability to write structured summaries and documentation for both technical and non-technical stakeholders

• Can write reliable, scalable, testable and maintainable code.
• Familiarity with Agile methodologies and clean code.
• Design and/or contribute to client-side and server-side architecture.
• Well versed with fundamentals of REST.
• Build the front-end of applications through appealing visual design.
• Knowledge of one or more front-end languages and libraries (e.g. HTML / CSS, JavaScript, XML, jQuery, Typescript) JavaScript frameworks (e.g. Angular, React, Redux, Vue.js)
• Knowledge of one or more back-end languages (e.g. C#, Java, Python, Go, Node.js and frameworks like SpringBoot, .NET Core) 
• Well versed with fundamentals of database design.
• Familiarity with databases - RDBMS like MySQL, Postgres & NoSQL like MongoDB, DynamoDB.
• Well versed with one or more cloud platforms like - AWS, Azure, GCP.
• Familiar with Infrastructure as Code - CloudFormation & Terraform & deployment tools like Docker, Kubernetes.
• Familiarity with CI/CD tools like Jenkins, CircleCI, Github Actions.
• Unit testing tools like Junit, Mockito, Chai, Mocha, Jest

As a Software Engineer, you will build and scale Clockwork, creating an engaging experience for our users. As one of the first few engineers, you will work on 0 to 1 type projects, partnering closely with our product, design and business teams to build the future of Clockwork.

• Write, test and deploy code to enhance our product
• Design software systems for new features
• Diagnose bugs and system bottlenecks as our product scales
• Work closely with product and design to define our roadmap

• 3+ years of professional experience as a software engineer
• Bachelor’s and/or Master’s degree, preferably in CS, or equivalent experience
• Solid engineering, coding and problem solving skills
• Strong product/business sense
• Excited about working in a fast-paced, dynamic startup environment

Clockwork encourages applications from people of all races, religions, national origins, genders, sexual orientations, gender identities, gender expressions and ages, as well as veterans and individuals with disabilities.

Should have delivered successful end-to-end development to deployment experience on Web applications and Api’sin last 4-12 years

·         Extensive experience with C#, .Net Core, Web API, Oops, Design patterns & principles.

·         Experience in MySQL is a must and added advantage to have knowledge of NOSQL database.

·         Extensive experience in writing rest full API

·         Experience in using version controls such as GIT, Continuous Integration, Continuous Delivery

·         1-2 year of experience in Angular 2/4/5/6/7/8/9/10/11/12, Typescript, JavaScript, and Bootstrap with Restful API’s is a plus

·         Good to have experience in testing and debugging new programs using