Create Token and Blockchain Development

Senior Blockchain Developer

Location: India, Remote

Employment Type: Full-Time / 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 specialize in alternative asset digitization, offering regulatory-conscious tools to design, issue, and manage digital assets in complex financial environments. We also develop loyalty solutions that turn customer engagement into programmable digital assets, helping brands create personalized experiences that drive growth.

OpenAssets operates at the intersection of finance, technology, and regulation focused on building secure, scalable, and open infrastructure for the future of digital markets. Join OpenAssets and be part of shaping the future of digital finance!

Overview

We are seeking a Blockchain Developer to lead the technical implementation of our Web3 infrastructure. In this role, you will be responsible for the end-to-end lifecycle of smart contracts and their integration into our broader financial ecosystem. You will act as a technical authority on blockchain security, scalability, and architecture, ensuring our platform meets the rigorous demands of institutional digital finance.

What You’ll Do

Smart Contract & Blockchain Development

• Design, develop, test, and deploy smart contracts and blockchain applications.
• Build and maintain secure, scalable backend services for blockchain products.
• Develop and maintain cross-platform applications that integrate with on-chain infrastructure.
• Integrate wallets, payment systems, and blockchain APIs with existing systems.
• Optimize for gas efficiency, transaction latency, reliability, and scalability.

Security & Quality

• Implement and uphold best practices for blockchain security and smart contract auditing.
• Review smart contracts and backend code for security vulnerabilities and performance issues.
• Support audits, security reviews, and production releases.
• Maintain high test coverage and disciplined release processes.

Collaboration & Communication

• Collaborate with product and engineering teams to define and deliver technical requirements.
• Communicate technical concepts clearly to both technical and non-technical stakeholders.
• Mentor junior engineers and contribute to a strong engineering culture.
• Stay current with emerging blockchain technologies, DeFi, and Web3 infrastructure trends.

Qualifications & Experience

• Experience: 3+ years of software engineering experience with at least 3+ years of hands-on blockchain/Web3 development.
• Blockchain Core: Strong experience with Solidity and EVM-compatible chains (Ethereum, Polygon, and others).
• Production Deployment: Proven track record building, testing, deploying, and maintaining smart contracts in production.
• Deep Technical Knowledge: Solid understanding of blockchain architecture, including consensus mechanisms, gas optimization, wallet flows, token standards, and transaction lifecycles.
• Full-Stack Proficiency: Good understanding of the MERN stack (MongoDB, Express.js, React, Node.js) and how full-stack applications integrate with blockchain infrastructure.
• Backend Expertise: Proficiency in Node.js and TypeScript with experience building RESTful backend applications.
• Testing & Tooling: Experience with smart contract and backend testing frameworks (e.g., Foundry, Hardhat, Mocha, Jest) and Web3 libraries like Ethers.js or Web3.js.
• Cloud Infrastructure: Hands-on experience with AWS, including deploying, managing, and scaling services like EC2, S3, Lambda, and RDS.
• Databases & DevOps: Comfortable with relational (PostgreSQL) and non-relational (MongoDB) databases, Git, and collaborative development workflows.
• Soft Skills: Strong communication skills in English with the ability to articulate technical concepts to diverse stakeholders.

Nice to Have

• Familiarity with the Move language (Sui, Aptos).
• Experience with smart contract audit tooling such as Slither, Mythril, or Manticore.
• Exposure to RWA tokenization, DeFi, stablecoins, NFTs, staking, or bridging protocols.
• Professional background in fintech, payments, or regulated blockchain use cases.

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.

Job Title: Software Engineer / Senior Software Engineer – Java Backend

Experience: 5–10 Years

Location: Pune (Baner) – Work from Office (5 Days a Week)

About the Role :

We are looking for passionate Java Backend Engineers to build highly scalable, high-performance enterprise applications used by millions of users globally. The ideal candidate should have strong experience in Java, Microservices, Payment Gateway integrations, and Checkout platform development, with a product engineering mindset.

Candidates from FinTech, E-commerce, Payments, or Product-based companies will be preferred.

Key Responsibilities :

Design, develop, and maintain scalable backend applications using Java and Microservices.

Build secure, high-performance REST APIs and distributed services.

Develop and enhance Checkout platforms and Payment Gateway integrations for seamless payment processing.

Collaborate with Product, Architecture, QA, and DevOps teams throughout the SDLC.

Participate in system design, architecture discussions, and technical decision-making.

Ensure high code quality through unit testing, code reviews, and engineering best practices.

Build and support CI/CD pipelines and containerized deployments.

Troubleshoot production issues, optimize performance, and improve application reliability.

Mentor junior engineers and contribute to engineering excellence.

Required Skills :

5–10 years of backend development experience.

Strong expertise in Java, Spring Boot, Spring MVC, Hibernate/JPA.

Hands-on experience with Microservices Architecture.

Experience building RESTful APIs.

Strong knowledge of SQL/NoSQL databases.

Experience with Payment Gateway Integration (Stripe, Adyen, Razorpay, Worldpay, PayU, Checkout.com, etc.).

Hands-on experience developing Checkout and Payment Processing workflows.

Understanding of Payment Lifecycle, including Authorization, Capture, Refunds, Settlement, Webhooks, and Transaction Management.

Experience with Docker, Kubernetes, and containerized applications.

Good understanding of CI/CD pipelines using Jenkins or similar tools.

Familiarity with Git, Agile methodologies, and engineering best practices.

Strong problem-solving and debugging skills.

Preferred Skills :

Experience working in FinTech, Payments, E-commerce, or Product-based organizations.

Exposure to Cloud Platforms (GCP/AWS/Azure).

Experience with Kafka or event-driven architecture.

Knowledge of OAuth2, JWT, Keycloak, or similar authentication mechanisms.

Experience with Monitoring & Observability tools (Grafana, Prometheus, ELK, Splunk).

Performance tuning and scalability optimization experience.

Preferred Background :

Candidates from FinTech, Digital Payments, Banking Products, E-commerce, or Product Engineering companies.

Experience working on high-volume transaction systems handling secure payment processing and checkout experiences.

Role Overview

We are looking for a Senior Full Stack Developer to build and scale our fintech platform. You will own the entire lifecycle of our financial products, from designing high-performance relational schemas in PostgreSQL to building interactive dashboards in React.

Key Responsibilities

• Full Stack Development: Build and maintain end-to-end features using the PERN stack

(PostgreSQL, Express.js, React, Node.js).

• Database Optimization: Design complex relational models and optimize SQL queries to

handle high-volume financial data and audit trails.

• Security & Compliance: Implement rigorous security measures (e.g., JWT, OAuth, data

encryption) and ensure the platform adheres to fintech standards like PCI-DSS.

• API Architecture: Develop robust RESTful APIs to integrate with third-party banking APIs,

payment processors (Stripe/Plaid), and KYC providers.

Technical Requirements

• Front-end: Advanced proficiency in React.js (Hooks, Context API, Redux or TanStack Query)

and modern CSS (Tailwind/Styled Components).

• Back-end: Expert-level Node.js and Express.js experience, with a focus on asynchronous

programming and secure API design.

• Database: Deep knowledge of PostgreSQL (complex joins, indexing, triggers, and

migrations).

Additional skills

• Understanding of Event-Driven Architecture (using AWS SQS/SNS or Kafka).

• Familiarity with SOC2 or ISO 27001 compliance frameworks.

• Cloud (AWS): Proven experience with:

• RDS/Aurora for managed databases.
• IAM for secure access management.
• AWS Lambda & API Gateway for serverless architecture.
• CloudWatch for monitoring and alerting.

• Tools: Git, Docker, and experience with CI/CD workflows.

About US

RJ Fintech Solutions Pvt. Ltd. is a high-growth fintech startup on a mission to automate business financial operations. In a world where financial systems are often slow and opaque, we are building the "missing link"—a secure, transparent, and lightning-fast platform that puts banking and compliance first for various corporates.

We are not just another financial app; we are an engineering-first company. We believe that elegant code and robust architecture are the foundations of trust. By leveraging the PERN stack and AWS cloud-native infrastructure, we are replacing legacy complexity with modern, scalable solutions.

Why Work With Us?

1. Build the Foundation, Not Just Features

You won't be a small cog in a massive machine. As an early member of our engineering team, you will help define our technical architecture, choose our libraries, and set the coding standards for everyone who follows. Your fingerprints will be on the core DNA of our product.

2. Solve Problems That Matter

Fintech is one of the few industries where code has a direct, measurable impact on people's lives.

Whether we are [e.g., simplifying cross-border payments, democratizing investment, or building the next generation of credit], you will be solving high-stakes challenges around security, trust, and financial inclusion.

Color Neon (colorneon.com) is a French brand making custom LED neon signs for customers across France and Europe. We run on Shopify, we built our own 3D neon configurator, and we work AI-first.

This is our first engineering hire in India. You will work on-site in Indore, directly with the founder, from day one.

WHAT YOU WILL BUILD

Custom Shopify apps for our store (Remix, Node, Shopify CLI, Polaris)

A storefront rebuild in Liquid and modern JavaScript

Improvements to our 3D neon configurator

Integrations across our order, production and shipping workflow

Internal tools and automations built with AI coding tools

WHAT YOU NEED

2-4 years building for the web

Real Shopify experience: Liquid, plus at least one app you actually shipped

Strong JavaScript, plus React or a similar framework

Comfortable with Git, REST and GraphQL APIs

You already use AI coding tools daily and can show us what you built with them

Working English, written and spoken

NICE TO HAVE

Shopify Remix app template, Polaris, App Bridge

Three.js or any 3D / WebGL work

Node backends, Postgres

E-commerce CRO or site performance work

WHAT WE OFFER

₹45,000-50,000 in-hand per month

A paid Claude Pro or Codex subscription, on us

On-site in Indore, working directly with the founder

One product, long term - not agency work, no client hopping

Real ownership: you are the engineering team

HOW WE HIRE

Apply with your CV and links to Shopify work you shipped

A short online video interview

If that goes well we move quickly, and we will tell you the next steps on the call

We are looking for someone who can start around 12 October.

About Us: We are not just an AD agency or a creative agency, we are a Communication Company. Founded in 2014, Moshi Moshi is a young, creative, gutsy, and committed communication company that wants its clients to always expect the EXTRA from it. Our primary clientele consists of Startups and corporations like Ola, Zoomcar, Mercedes Benz, ITC, Aditya Birla Group, TATA Group, MTV, IHCL, Jaquar, Sobha, Simple Energy, and Godrej amongst others. We have a huge team of

creative folks, marketers, learners, developers, and coders who believe Moshi Moshi is an experience rather than a company.

Job Role: Shopify Developer

Experience Level: 3+ years

Location: Bangalore, Karnataka (On-site)

Job Overview:

We are looking for a highly skilled and proactive Shopify Developer who takes ownership of projects and delivers scale high-performance eCommerce solutions. This role is not limited to development, you will be expected to think like a problem solver, optimize user journeys, and build robust Shopify experiences that directly impact business outcomes.

Required Skill Set:

● Strong expertise in Shopify theme development using Liquid, HTML, CSS, JavaScript and liquid

● Understanding of Shopify Apps for ecommerce required setups.

● Proven experience in converting Figma/UI designs into pixel-perfect, high-performance Shopify stores

●Deep understanding of Shopify architecture, limitations, and best practices

● Hands-on experience with Shopify APIs, webhooks, and third-party integrations

● Strong understanding of performance optimization (Core Web Vitals, lazy loading, asset optimization)

● Experience in integrating and debugging payment gateways (Razorpay, Stripe, etc.)

● Ability to write clean, scalable, and maintainable code

● Strong debugging and problem-solving skills (must be able to handle real-world issues independently)

● Experience in building responsive, cross-browser compatible websites

● Understanding of SEO fundamentals for eCommerce

Roles & Responsibilities:

● Convert UI/UX designs into fully functional Shopify stores with high attention to detail

● Take complete ownership of development tasks from implementation to deployment

● Optimize store performance, loading speed, and user experience

● Integrate third-party tools, APIs, and custom functionalities

● Troubleshoot complex issues across checkout, payments, and app integrations

● Work on existing stores and improve scalability, structure, and performance

● Collaborate closely with designers and marketing teams to improve conversion rates

● Perform thorough QA across devices, browsers, and scenarios before delivery

What We Expect:

● Ability to work independently without constant supervision

● Strong accountability and ownership mindset

● Real experience handling live Shopify stores (not just static builds)

● Ability to debug issues quickly and provide practical solutions

● Understanding of business impact (conversion, speed, UX not just code)

Good to Have:

● Experience with WordPress (Elementor, WooCommerce, custom themes)

● Knowledge of React / Next.js (for headless commerce or modern frontend setups)

● Experience with Shopify Plus or headless commerce architecture

● Familiarity with Git and version control workflows .

Job Title: Full Stack Developer (.NET Core)

Work Location: U.S Complex, Adjacent to Jasola Apollo Metro Station, Mathura Road New Delhi-110076

Background of the Role:

We, Infinity Assurance specialize in Warranty Service Administration, Extended Warranty, Accidental Damage Protection and a wide range of service products under our own brand “InfyShield” Our offerings cover Mobile Phones, Home Appliances, Consumer Electronics, IT Equipment, Office Automation, AV Solutions, Classroom and Conference Room Technologies, Kitchen Appliances and more.

·        We have a very extensive Enterprise grade End to End Business Management Software Application that is unmatched in the industry.

·        The application has multiple Sub-applications and functionalities including Sales, Insurance Claims, Warranty Claims, Payments, Collections, Approvals, Billing / Invoicing, Payment / Tax / Bank Reconciliations, Partners Management, HRMS, Client Management etc. to suite end to end business needs of any enterprise.

·        The application also has multiple integrations for Payment gateways, Voice calls, Video Calls, SMS, emails, WhatsApp, client applications, courier, Maps and databases, etc.

·        To fuel our growth, we are inviting Backend Developers with expertise in .NET core, secure API development, and AI orchestration to build and scale a next-generation multi-tenant verification platform,

·        We are building our software development team to execute new business growth plans and a fresh product roadmap.

·        This position requires talents who are multi-skilled with hands-on experience; to work independently as well as in teams.

·        Ideal candidates will be responsible to design, modify, develop, write, and implement software applications and components.

·        Our technology processes documents and images across warranty, insurance, claims, and identity workflows—where trust, precision, and fraud prevention are paramount.

Key Responsibilities

·        Assist in building multi-tenant backend services for verification and workflow-based applications.

·        Integrate internal services with external APIs (e.g., government, financial, or partner systems) using REST API

·        Develop and maintain ASP.NET Core Web APIs,

·        Following best practices for security, performance, and code quality.

·        To Work with relational databases to store, query, and optimize data using Entity Framework Core.

·        Follow defined security and data-handling guidelines, including data masking or redaction mechanisms.

·        Debug issues, fix bugs, and assist in production support

·        Write clean, maintainable code and participate in code reviews.

Required Skills

·        Working knowledge of C# and ASP.NET Core (Web API), JavaScript, jQuery

·        Hands-on experience with Entity Framework Core and relational databases

·        Core experience with REST APIs;

·        Understanding of asynchronous programming in .NET

·        Hands-on experience in MSSQL database

·        2–3 years of experience in backend or full-stack development using C# and ASP.NET Core

·        Bachelor’s degree in Computer Science, IT, Electronics, or a related discipline

Desired Candidate Profile

·        Prior experience in fintech, verification, or workflow-based platforms

·        Comfortable working with existing codebases and learning enterprise patterns

Important Notes & Perks:

·        Attractive pay structure as per the Market Standards

·        Huge career growth opportunity

·        Preference will be given to candidates who can join early

·        Should have worked in small teams with multi-skilled resources

·        This is a full-time, work-from-office opportunity (Preference will be given to candidates who are interested in Monday to Saturday; 6 days a week)

·        Applications may be submitted via google form as per the link: https://forms.gle/XesCaxtoKos1wj8m8

About us:

We, Infinity Assurance Solutions Private Limited (https://www.infinityassurance.com; https://www.infyshield.com; ); a New Delhi-based portfolio company of Indian Angel Network, Aegis Centre for Entrepreneurship, Artha Venture Fund, and other marquee industry veterans.

We specialize in Warranty Service Administration, Extended Warranty, Accidental Damage Protection and various other service products for wide range of Mobile Phones, Home Appliances, Consumer Electronics, AV Solutions, Classroom / Conference-room Solutions, Kitchen Appliances, IT, Office automation, Personal Gadgets etc.

Incorporated in January 2014; as a debt-free, operationally profitable with positive net retained earnings, we have grown rapidly. Going forward, we are looking to grow multi-fold with newer areas of business expansion.

Our success is attributed to a very agile and technologically driven unique service delivery model, loyal long-term clients, in-house application, and lean organization structure.

1st round HE test virtual & 2nd F2F Karat

Dot Net Full stack

Dotnet, Asp.net, .Net Core, Angular

5+

bangalore & hyderabad

immediate to 15days

22LPA for 5 to 7 yrs

About Us: We are not just an AD agency or a creative agency, we are a Communication Company. Founded in 2014, Moshi Moshi is a young, creative, gutsy, and committed communication company that wants its clients to always expect the EXTRA from it. Our primary clientele consists of Startups and corporations like Ola, Zoomcar, Mercedes Benz, ITC, Aditya Birla Group, TATA Group, MTV, IHCL, Jaquar, Sobha, Simple Energy, and Godrej amongst others. We have a huge team of

creative folks, marketers, learners, developers, and coders who believe Moshi Moshi is an experience rather than a company.

Job Role: Shopify Developer

Experience Level: 3+ years

Location: Bangalore, Karnataka (On-site)

Job Overview:

We are looking for a highly skilled and proactive Shopify Developer who takes ownership of projects and delivers scale high-performance eCommerce solutions. This role is not limited to development, you will be expected to think like a problem solver, optimize user journeys, and build robust Shopify experiences that directly impact business outcomes.

Required Skill Set:

● Strong expertise in Shopify theme development using Liquid, HTML, CSS, JavaScript and liquid

● Understanding of Shopify Apps for ecommerce required setups.

● Proven experience in converting Figma/UI designs into pixel-perfect, high-performance Shopify stores

●Deep understanding of Shopify architecture, limitations, and best practices

● Hands-on experience with Shopify APIs, webhooks, and third-party integrations

● Strong understanding of performance optimization (Core Web Vitals, lazy loading, asset optimization)

● Experience in integrating and debugging payment gateways (Razorpay, Stripe, etc.)

● Ability to write clean, scalable, and maintainable code

● Strong debugging and problem-solving skills (must be able to handle real-world issues independently)

● Experience in building responsive, cross-browser compatible websites

● Understanding of SEO fundamentals for eCommerce

Roles & Responsibilities:

● Convert UI/UX designs into fully functional Shopify stores with high attention to detail

● Take complete ownership of development tasks from implementation to deployment

● Optimize store performance, loading speed, and user experience

● Integrate third-party tools, APIs, and custom functionalities

● Troubleshoot complex issues across checkout, payments, and app integrations

● Work on existing stores and improve scalability, structure, and performance

● Collaborate closely with designers and marketing teams to improve conversion rates

● Perform thorough QA across devices, browsers, and scenarios before delivery

What We Expect:

● Ability to work independently without constant supervision

● Strong accountability and ownership mindset

● Real experience handling live Shopify stores (not just static builds)

● Ability to debug issues quickly and provide practical solutions

● Understanding of business impact (conversion, speed, UX not just code)

Good to Have:

● Experience with WordPress (Elementor, WooCommerce, custom themes)

● Knowledge of React / Next.js (for headless commerce or modern frontend setups)

● Experience with Shopify Plus or headless commerce architecture

● Familiarity with Git and version control workflows .

The web is about to gain a second interface

Today, websites are designed for people. Agents must interpret pages, hunt for controls, and imitate clicks to accomplish anything.

We believe that will change. Websites will expose their capabilities directly to agents: structured, testable interfaces that work alongside the human experience. WebMCP is an early step toward that future. Signett is building the developer platform around it.

Our goal is to make creating an excellent agent interface as normal as building an API or testing a user interface.

The foundational product already exists. Signett has a public TypeScript library, documentation, benchmarks, real-world integrations, a website, and a Chrome extension. You would not be joining to turn a slide deck into an MVP. You would be joining to discover what makes a promising product become something developers genuinely adopt.

See it at signett.ai.

The opportunity

You would be Signett’s first hire and would have unusual ownership over the product’s direction.

Your job is to run one loop repeatedly:

1. Find an external developer or team with a real reason to make its website agent-ready.
2. Work inside its codebase and ship the integration.
3. Identify what made the process difficult.
4. Fix that friction yourself—in the library, documentation, testing tools, or extension.
5. Publish what you learned so the next integration becomes easier.

You will move between engineering, product discovery, developer experience, and early distribution. There will be no handoff between those functions because, initially, you are the person connecting them.

The work could help establish how developers build and test agent interfaces for the web. It could also reveal that our present assumptions are wrong. Either outcome requires someone who cares more about finding the truth than defending the existing product.

The first 90 days

The initial targets are deliberately concrete:

• Five external teams attempt the 30-minute integration.
• At least three ship a real workflow without founder intervention.
• Two remain active or request a paid capability such as shared history, CI, analytics, or evaluations.
• Two reference integrations and case studies become public.

By the end, we should know which part of Signett developers truly value—exposure, testing, reliable execution, the Inspector, evaluations, or something we have not yet recognized.

You may be a strong fit if you have

• Six to ten years of experience as a product-oriented full-stack or frontend engineer.
• Strong TypeScript, React or Next.js, browser API, and Playwright or Cypress experience.
• Built SDKs, developer tools, browser tooling, API infrastructure, or observability products.
• Personally helped developers adopt something through documentation, examples, workshops, open-source work, or direct integrations.
• Enough commercial instinct to find a design partner, lead the conversation, and turn the resulting work into a useful public case study.
• The judgment and autonomy to make progress without daily direction.
• Clear writing and demonstration skills in addition to strong engineering ability.
• 
  

Experience with WebMCP or MCP is helpful but not required. Curiosity and the ability to learn an evolving standard matter more. The WebMCP proposal is public at github.com/webmachinelearning/webmcp.

The anti-sell

Signett has a product, but it does not yet have proven product-market fit. Adoption is the open question, and answering it is the core of this role.

You should not join if:

• You want a role devoted entirely to writing code handed to you through a roadmap.
• You expect someone else to find users, conduct interviews, write documentation, or publish the work.
• You need a large team, established processes, or daily management to be effective.
• Your experience is primarily managing mature organizations rather than building from ambiguity.
• Your main strength is developer content without production software behind it.
• You want to research or train models rather than build browser-based products developers use.
• The uncertainty of an emerging standard makes you uncomfortable.
• You need the stability and specialization of a conventional engineering position.

.

This is not a comfortable job with a “founding” title attached to it. It is a chance to take a technically serious, public product and prove—or disprove—that it deserves to become an important company.

How we will start

We begin with a paid four-to-six-week project involving a real external TypeScript application, not a synthetic coding exercise.

The purpose is for both sides to experience the actual work: finding a useful integration, shipping it, learning from developers, and improving Signett. If the collaboration works and the evidence supports continued investment, the intended path is a permanent, full-time role.

The work is fully remote. Compensation, location, time-zone overlap, and the terms of the initial project will be discussed transparently before the process begins.

🔧 Skills Required:

✅ ASP.NET Core (Latest LTS)

✅ REST APIs & Microservices

✅ Angular / ReactJS

✅ Azure DevOps CI/CD

✅ OAuth2 & Azure AD

✅ HTML5, CSS3, JavaScript/TypeScript

✅ Azure App Services, Azure SQL, Key Vault

⭐ Good to Have:

➕ Node.js exposure

➕ GitHub Copilot experience

Why Join Amazech?

✨ Work with cutting-edge technologies

✨ Collaborative and growth-oriented culture

✨ Opportunity to work on enterprise-scale projects

✨ Be part of a fast-growing global organization

Interested candidates can share their resumes via DM or email at [your email ID].

Please feel free to like, comment, or share within your network.

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