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.

We are looking for a highly skilled Full Stack Developer (MERN Stack) with 3–5 years of experience to join our growing team. You will have the opportunity to work on cutting-edge technology solutions, build products from scratch, and contribute to scalable systems handling large volumes of data.

Key Responsibilities:

• Design, develop, and maintain scalable full-stack applications
• Build responsive and high-performance user interfaces using modern frontend frameworks
• Develop robust backend services and APIs
• Ensure seamless system performance while handling large-scale data without slowdowns
• Collaborate with cross-functional teams (product, design, QA) to meet business goals
• Optimize applications for maximum speed, scalability, and reliability
• Participate in architecture discussions and contribute to technical decisions

Required Skills & Qualifications:

Frontend

• Strong experience in React.js
• Hands-on experience with Next.js (mandatory)
• Good understanding of UI/UX principles and responsive design

Backend

• Solid experience in Node.js
• Experience with Python or Java is a plus
• Strong knowledge of RESTful APIs and microservices architecture

Databases

• Strong experience with SQL (mandatory)
• Experience with MongoDB is a plus
• Caching & Messaging
• Experience with at least one: Redis, Kafka, or Cassandra

Other Requirements

• Strong problem-solving and analytical skills
• Ability to work in a fast-paced, collaborative environment
• Good communication and stakeholder management skills

Good to Have:

• Cloud certifications (AWS / Azure / GCP)
• Experience working on high-scale or distributed systems
• Exposure to DevOps practices and CI/CD pipelines

Why Join Us:

• Opportunity to work on cutting-edge tech and greenfield projects
• Ownership and freedom to build solutions from scratch
• Collaborative and growth-focused work environment

Senior AI Engineer — Ruby on Rails

Techjays · Coimbatore / Chennai · Hybrid · Immediate – 30 Days Notice

About Techjays

We're the AI Reimagination Company — and that's not a tagline we put on a deck. It's what we actually do.

Techjays helps global enterprises rebuild the way they operate using AI at the core: not as a pilot, not as a feature, but as a foundational layer across products, workflows, and infrastructure. We're an Anthropic partner, which means our engineers get early access to frontier models and tools before they hit the market.

Our team includes engineers and leaders from Google, Akamai, NetApp, ADP, Cognizant Consulting, and Capgemini. We run like a high-agency startup, but we build production systems that real enterprise clients depend on.

Every project is greenfield. Every line of code you write ships.

What This Role Actually Is

This isn't a "keep the monolith alive" job.

You'll be designing and building new AI-powered features, integrating LLM APIs into production Rails applications, and using Claude Code as a core part of your daily workflow — not as an experiment. You'll work directly with US-based enterprise clients alongside Product Managers, AI Business Consultants, and Delivery Excellence Managers.

Your architecture decisions will have visible business impact.

What You'll Own

• Design, build, and maintain production-grade Ruby on Rails applications for US enterprise clients — from architecture to deployment
• Integrate LLM APIs (Claude, GPT-4, Gemini) into the Rails stack, building AI-powered features that drive real business outcomes
• Use Claude Code daily as your AI development partner — for generation, debugging, documentation, and velocity
• Build responsive, performant React front-ends from wireframes and design specs
• Own RESTful and GraphQL API design for client applications and third-party integrations
• Drive database design and optimisation — schema, queries, indexing, and migrations on PostgreSQL/MySQL
• Lead code reviews and raise the technical bar through constructive feedback
• Document architecture decisions, API contracts, and implementation patterns

Must-Haves

• 6+ years of deep, production-grade Ruby on Rails experience — advanced framework patterns, background jobs (Sidekiq/Redis), design patterns, best practices
• Hands-on experience with Claude Code (Anthropic) for AI-assisted development — this is central to how we build
• Strong React skills — hooks, component architecture, state management, wireframe to production
• Expert-level PostgreSQL/MySQL — schema design, query optimisation, indexing, performance tuning
• Proven experience designing RESTful and GraphQL APIs at scale
• Experience integrating third-party LLM APIs (OpenAI, Anthropic, Google Gemini) into production Rails apps
• Strong software architecture fundamentals — MVC, service objects, design patterns, testability
• Deep comfort with Git, Gitflow, and PR-based collaboration workflows

Good to Have

• Python for scripting, automation, or backend service integration alongside Rails
• AWS familiarity — EC2, S3, RDS, Lambda — for deployment and infrastructure
• MongoDB or NoSQL in polyglot persistence architectures
• Vector databases (Pinecone, pgvector, Weaviate) for LLM application development
• LangChain, LangGraph, or similar orchestration frameworks for AI agents
• SaaS multi-tenancy patterns and high-traffic web application experience
• Open source contributions or a strong public GitHub profile

Why Join Techjays

• Claude Code is standard practice here, not a side experiment — you'll use it every day to ship faster and smarter
• Anthropic partner access — early visibility into frontier AI tools and capabilities before the market sees them
• Greenfield only — you'll design architecture, not inherit technical debt
• Global client exposure — your engineering decisions translate directly to measurable business outcomes for US enterprise clients
• Team pedigree — you'll learn alongside engineers who've shipped at real scale at Google, Akamai, and NetApp
• AI is the product here, not a feature. You'll spend your career at the intersection of software engineering and AI systems

What We're Looking For Beyond the Resume

• Builder mindset — you think in systems, not tickets
• Ownership — you take features from idea to production
• Structured thinking in ambiguous, fast-moving environments
• Clear communicator, collaborative team player

What We Offer

• Competitive compensation
• Hybrid work — Coimbatore office or remote flexibility
• Paid holidays and flexible time off
• Medical insurance for self and family (up to ₹4 Lakhs per person)
• Opportunity to work on production-grade AI systems for global clients
• A culture built on clarity, integrity, and continuous growth

Location: Coimbatore / Chennai — Hybrid Notice Period: Immediate to 30 days preferred

Lantern Pharma is looking for talented and highly motivated R Shiny based front end web application developers to visualize the data analyzed / reports generated using bioinformatics pipelines. Leveraging your background and applying software engineering principles, to develop applications and tools in support of data visualization and reporting using R / R Shiny. You will be involved in generating complex graphs used for statistical analysis and interpretation using interactive libraries such as Plotly. In addition to development of new code, you will support and maintain standard R programs, which will comprise a library of code to be used for future development. This is a 6 months contract position (40 hrs / week) with possibilities of full time employment based on performance.

RESPONSIBILITIES:

• Design and develop interactive web applications using R / R Shiny to visualize ML outputs, multi-omics data and reports generated by bioinformatics pipelines
• Use the open-source or proprietary R libraries to build useful applications and packages
• Write efficient, clean and well tested code that adheres to best practices
• Organize data, analysis, reports, and applications into reproducible pipelines
• Test and debug applications to ensure they are working correctly, using both manual and automated testing techniques
• Stay up-to-date with the latest R packages and developments in the pharma industry
• Publish R packages to internal company repository
• Deploy and maintain the R Shiny web-application on the AWS server

BASIC QUALIFICATIONS:

• Bachelor's degree required (Master’s degree preferred) in a scientific discipline such as Statistics, Computer Science, Bioinformatics etc.
• Minimum 2 years of R / R Shiny, R Markdown experience with standard packages for data visualization and analysis
• Proven ability of building interactive R-shiny application (demo of the R-shiny application)
• Proficient in libraries such as ggplot2, plotly, dplyr, Highcharter and DT
• Must have experience in generating and working with R markdown reports
• Experience of AWS to host R shiny application is a plus
• Knowledge of cancer biology, genomics and drug development is a plus
• Familiarity with JavaScript, HTML, CSS, Python a plus
• Experience in building a database using Relational / Non relational Database (SQL / NoSQL)
• Must be capable of developing collaborative relationships with colleagues
• Must be self-motivated and have strong analytical, interpersonal, and project management skills
• Must demonstrate the ability to present ideas, issues, and observations in a clear manner

Lantern provides multiple growth opportunities and as an early team member, your work will have a direct impact on precision oncology that can transform drug development. In addition to attractive compensation, we offer employees the opportunity for competitive health, dental & vision insurance, stock options in a public company, an opportunity to take leadership on new and meaningful projects, & involvement with leading conferences & industry trade shows.

Headquartered in Los Angeles, California, USA, with offices in Hong Kong and Shanghai, Careismatic Brands (CBI) is the world’s largest manufacturer of medical scrubs (uniform apparel). CBI distributes its products through multiple channels including 3rd party retail, wholly owned retail ecommerce sites (http://www.allheart.com/">www.allheart.com), and corporate branded sites (www. http://infinityscrubs.com/">Infinityscrubs.com).

We are looking for a Salesforce Commerce Cloud Developer who is interested in joining a vibrant, fun and cutting-edge organization in our Ahmedabad, India office, to contribute to overall B2C strategy while taking full ownership of designing, engineering, and delivering B2C commerce capabilities across the enterprise.  This individual will work with US colleagues and India tech leads to execute CBI’s B2C strategy from our Ahmedabad, India office.

Job Responsibilities:

• Design and implement multiple ecommerce sites (currently on Magento or Shopify)
• Implement feature enhancements to new and existing sites
• Implement 3^rd party integrations
• Collaborate with technical leaders in both India and US
• Implement best practices as related to SFCC

Qualifications and Skills:

• Certification in Salesforce Commerce Cloud highly preferred
• Prior experience with full lifecycle development in ecommerce environment using SFCC
• Prior experience integrating to ecommerce system components (e.g. CMS, DAM, PIM, OMS, and ERP)
• Excellent written and verbal communication skills
• Ability to work effectively with non-technical personnel
• Years of Related Professional Experience: 3
• Bachelor's Degree in computer science or similar degrees
• 3 years’ experience in implementing Salesforce Commerce Cloud B2C (Demandware) solutions
• 3 years hands-on experience in web technologies including: HTML, CSS, JavaScript, JSON, AJAX, JQuery, Bootstrap, MVC, web analytics, XML, web services (SOAP/REST), and open source packages/libraries 
• Experience with Salesforce Commerce Cloud B2C Storefront Reference Architecture (SFRA)
• Experience source control and collaboration tools such as AzureDevOps, Jira, Confluence, and git
• Experience with web frameworks, interactive web development, responsive web design
• Experience with site speed optimization

• Architect, design and build complex, highly scalable, high performance enterprise applications
• Lead, mentor and work with a team of engineers to deliver on clients application expectations
• Work with clients engineering needs and deliver on requirements in a team environment
• Accelerate development velocity for all engineers and deliver continuous improvements to the teams process and codebase
• Build automation to prevent and/or remediate service problems from becoming production incidents

As a Full Stack Developer, you should be comfortable around both front-end and back-end coding languages, development frameworks and third-party libraries. You should also be a team player with a knack for visual design and utility.

Responsibilities  

• Highly skilled tech expert with exposure in web-technologies and a product oriented thought process
• Design client-side and server-side architecture
• Build the front-end of applications through appealing visual design
• Develop and manage well-functioning databases and applications
• Write effective APIs
• Test software to ensure responsiveness and efficiency
• Troubleshoot, debug and upgrade software
• Create security and data protection settings
• Build features and applications with a mobile responsive design
• Write technical documentation
• Should have minimum 5 years of experience

Requirement

• Proven experience as a Full Stack Developer
• Experience developing desktop and mobile applications
• Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, React JS & Extjs)
• Knowledge of multiple back-end languages (Java Servlets, Jsp, hibernate, Spring, Spring boot-Java back end)
• Excellent communication and teamwork skills
• Great attention to detail

            Technologies

• Front end: Extjs, React Js, html, CSS, JavaScript
• Back end: Java Servlets, Jsp, hibernate, Spring, Spring boot-Java back end.

About Armentum

We are an IT Services and Product Development company, headquartered in Bangalore, that develops ERPs, Mobile Apps, and Web-Apps for our clients and customers globally.

We love JS and working on React, Node and Angular!

At Armentum, we have ensured that our teams are stable, there is no politics and no-blame game culture. If something goes down, the PM's take the lead, and then they drill down on what can be improved v/s who did the mistake etc. So culture wise, we are also looking for resources who can gel well with us. We do not believe in passing on the hot-potato. :)

Our Engineering team is looking for a Full-Stack Engineer to join our base in Bangalore, KA. Your key role will be able to work on complex tasks and projects, and be able to support to increase the engineering churn out. You should be able to write code that is error free, be able to quickly understand the problem statement and come up with logical solutions.

What you bring to the table:

• Experience in independently managing End-to-End Implementation, Design and Development of IT Projects and Products (Apps and Web-Apps)
• Experience converting Business Cases to Technology case and Building Products from scratch
• Experience in Training team and grooming them, undertaking managerial tasks such as Quarterly Skills Meeting, and Profile Evaluation, GAP Analysis
• Experience in Providing inputs to Project Budgeting, Efforts Estimations (EE), Technology Decks,
• Experience in Writing Test Cases and Managing UAT and Deployment Cycle (Automation Testing)
• Working with Client to understand provide Consulting or Business Solutions, Problem Solving Approach and Skills, Strong Analytical Skills, should be able to read between the lines
• Interacting with the Technical/Engineering team to ensure Delivery and Implementation of the Software Solution/Projects
• Client Relationship Management, Excellent at English Speaking, and Written Communication
• Understanding of Change Management, Risk Management and Project Management
• Experience working with US Clients is a Must
• Experience and Exposure working with different projects and business models will be an advantage
• Understanding of Blockchain, Healthcare, HIPAA Compliances, RPA, Payments Services, DevOps will be an asset

Management and Soft Skill :

• Excellent Written and Oral Communication Skills and Etiquettes - MUST
• Excellent Presentation Skills -
• Experience in working with Onshore and Offshore Teams and Experience handling Cross-Functional Projects, Resources and Clients and ability to provide inputs to improving ODCs (Off-shore development centres)
• Experience dealing with Pressure and Meeting strict Project Deadlines - MUST
• Leadership and Motivational Skills to ensure the Work is being done by the Resources on time and within the specified budget - MUST
• Conflict and Resolution Management – MUST

Qualifications:

• 7 -10 years of overall experience
• Experience of working on Mobile & Web Applications (across Android & iOS)
• Strong understanding of Java & MERN/ MEAN stack - Angular/Node/React/ Vue
• Ability to create APIs in REST, and GraphQL understanding of JSON, XML, Websockets, SOAP, COBRA
• Good to have experience of Office 365 - SharePoint and ASP.Net
• Understanding of Database: MySQL, MongoDB, Oracle, PostGres
• Understanding of Project Management: Agile/Scrum, Waterfall both is fine
• Previous experience of working in FinTech, eCommerce, Enterprise Projects, C2C, B2C, B2B Apps will be an added advantage

Technical Manager: We are looking for someone who can report to the firm’s chief technology officer, the technical lead is a full-time position that participates in all phases of the project lifecycle and consistently delivers business value to our clients. The technical lead is a leader within our client-facing project delivery team structure and sets best practices, approach and direction for the technical aspects of our practice. The ideal candidate has a passion for the web and higher education and is a champion for Laravel or similar frameworks.  And guide our passionate Software Developers to design, develop robust products. Candidates should be open minded to new solutions, forward thinking and strong ability to adapt. As a Lead, you’ll work closely with our engineers to ensure system consistency and improve user experience. Ultimately, you should be able to lead, develop and maintain functional and stable web applications to meet our company’s needs along with managing the team.

Primary Responsibilities

• Participates in pre-project business development activities including writing proposals, developing price estimates, and delivering pitches for new work. 

• Participates in pre-project business development activities including writing proposals, developing price estimates, and delivering pitches for new work. 

• In partnership with the other technical lead, sets direction for all aspects of our technology practice. 

• Leads and advances our growing Laravel practice. 

• Responsible for various aspects of ongoing support and maintenance engagements. Partners with project managers and web developers to successfully manage these client relationships
  
  

•  Understand requirements & plan the architecture for frontend/backend of the application
• Plan out the contracts & APIs for communication of various components.
• Work on integration of any external libraries and tools as per required by the application needs
• Working with modern tools to make the application more robust, efficient and scalable

• Understands each client’s organizational goals and objectives. 

• Develops lasting relationships with client personnel that foster client ties. 

• Seeks opportunities to increase customer satisfaction and deepen client relationships. 

• Delivers training to client personnel of various skill levels and technical capabilities.

Communication Responsibilities:

•    Delivers engaging, informative and well-organized presentations.
•    Resolves and/or escalates issues in a timely fashion. 
•    Understands how to tactfully communicate difficult/sensitive information.
•    Demonstrates strong interpersonal skills. 
•    Elicits cooperation from a variety of sources including Froogal management and client  

   team  members.

•    Comfortable using teleconferencing and web-based technology to communicate with our 

   Clients.

Other Responsibilities: 

•   Helps team members progress toward their professional development goals.
•   Defines and disseminates technology best practices.
•   Ensures we are proactive in our pursuit of new solutions and innovation within our   

   technology practice. 

•   Advances the firm’s thought leadership, specifically around web technologies, via the    

              mStoner blog, social media outlets and industry events and conferences. 

• Strong understanding of Object-Oriented Programming & its implementation in any programming language. Knowledge of PHP and/or JS is a plus
• Proven industry experience as a Tech Lead
• Experience/Knowledge of microservice architecture
• Fluency and Hands-on Experience on Laravel 5+ PHP Framework (specially working with Eloquent Models/Collections) and/or React/Redux is a plus.
• Excellent knowledge of relational databases such as MySQL and/or NoSql based DB such as MongoDB.
• Experience in JavaScript. Vue JS/React JS is a plus