Full Stack JavaScript Developer - React.js/Redux/Node.js

Project Overview

We’re building Express AI, a SaaS platform that allows small and medium-sized businesses (SMBs) to easily train and deploy their own dedicated AI agents for customer service, technical support, sales, and more.

Our vision is to give SMBs the power of enterprise-grade AI without complexity. You’ll help build the core platform that powers this – including agent training interfaces, web deployment, dashboards, and integrations.

Key Responsibilities

• Develop scalable full-stack features using modern JavaScript frameworks

• Build and maintain AI agent training modules (upload docs, FAQs, tone settings)

• Integrate OpenAI, Whisper, LangChain, and other LLM APIs

• Implement user-facing dashboards for chat/voices/social/email agent monitoring

• Design multi-tenant systems with admin-level controls

• Ensure reliability and scalability of the platform as we grow

Tech Stack

• Frontend: React.js, Next.js, TypeScript

• Backend: Node.js, Express, MongoDB (or Postgres), Redis

• AI & NLP: OpenAI API (ChatGPT, Whisper), LangChain, Python (optional)

• DevOps: Docker, AWS or GCP (basic familiarity okay)

• Other: WebSockets for real-time chat, REST APIs, Git

Role Type

• Full Stack Developer (preferred)

• Frontend or Backend specialists also considered, but must be willing to collaborate on both sides

Experience Level

• 3 to 6 years of professional experience

• Previous work with SaaS platforms, AI tools, or multi-tenant architecture is a big plus

Must-Have Skills

• Proficiency in JavaScript/TypeScript

• Strong experience with React.js and Node.js

• Experience working with REST APIs and building secure web apps

• Solid understanding of cloud deployment (AWS/GCP/Firebase)

• Ability to work independently, self-manage, and deliver in a fast-paced environment

Nice-to-Have Skills

• Familiarity with LangChain, OpenAI, AI agent frameworks

• Experience with voice/chat integration

• Prior experience building tools for SMBs or customer support systems

Engagement Type

• Full-time (preferred) or part-time with clear weekly availability

• Remote (India-based candidates only)

Why Join Us?

• Work on a cutting-edge AI platform solving real problems for real businesses

• Fast-moving, no-red-tape team environment

• Build something that will impact millions of small businesses globally

• As a senior backend engineer, you will be expected to execute and deliver large and complex projects end-to-end, with or without the involvement of other team members
• Ensuring timely delivery of all product deliverables
• Play a key role in technical discussions within the team and be the go-to person for the team for guidance and troubleshooting
• Understand key Business and Engineering metrics around performance, quality, and availability and work regularly with the team to push the boundaries and improve them periodically
• Proactively participate in code reviews and architecture and design discussions
• Mentoring junior engineers and setting best practices for coding, code reviews, etc.
• Help the organization in building a top-quality team by participating in hiring initiatives and evangelizing about contributions, accomplishments, and victories

• Strong and self-motivated individuals, should be able to independently drive decisions
• Solid experience in building web-based products
• Overall of 4+ years of expertise in at least one dynamic programming language and one MVC web framework, preferably Ruby on Rails
• Expertise in Database modeling, preferably relational DB, spotting DB bottlenecks, and writing optimized DB queries
• Expertise in all common Cloud technologies, preferably AWS. Knowledge of CI/CD tools and workflows
• Proven track record in building highly-available and scalable distributed systems
• Willingness to play and explore with new technologies and be a Subject Matter Expert and support them
• Someone who believes in small incremental improvements and is passionate about refactoring
• A keen eye for quality with regards to following and establishing good coding practices, improving code coverage
• Good stakeholder management, ability to build trust and rapport with internal and external stakeholders

We are looking for a Java Developer with experience in building high-performing, scalable, enterprise-grade applications. . You'll be required to apply your depth of knowledge and expertise to all aspects of the software development lifecycle, as well as partner continuously with your many stakeholders daily to stay focused on common goals You will be part of a talented software team that works on mission-critical applications

Responsibility

• Write automated test cases to test code.
• Excellent teamwork skills with an ability to get the work done with minimal
• Experience with multiple mobile platforms is a plus.
• A passion and will to accept any new technical challenge that may come across.
• Linux scripting and SSH terminal
• Conceptual, Working knowledge of - DBMS, SQL, PL/SQL.
• Ability to write clean and documented code.

• A team player can provide technical expertise for a small team of developers.
• Strong hands-on and experience in core Java - Java/J2EE
• Design and implement new features, create UI, debugging, and data modeling.
• To update and sync with other team members daily.
• Ability to communicate effectively, both written and oral, at all levels to various technical and non-technical audiences
• Testing all applications against software and hardware versions. Provide timely turnaround and documentation of things implemented.

Additional preferred skills * JSP/Servlets OR JQuery/HTML5 AND JavaScript

Requirements:-

• Working knowledge of - MySQL.
• Working experience on Struts/Spring.
• Experience with web services standards and related technologies - SOAP/Rest, AJAX, JSON, and XML.

Relevant work experience in ASP.net, C#

At least 2 years of experience with WCF Services

Very strong C# fundamentals
Has experience in building applications in C#

Experience and proficiency in client-side scripting languages, in particular HTML, CSS, and JavaScript

Experience and proficiency in cloud environment, in particular AWS

Additional skills-

- experience of handling Photon Engine

- knowledge of Scripting language like Python, Shell

- Knowledge of apache web server and php application deployment

- Performance monitoring- apps and cloud infra

Responsibilities:

• Ability to work in an existing codebase and collaborate with a diverse team
• Experience in building enterprise-scale backend REST APIs with frameworks such as Nest.js & Express.js using an API-first paradigm
• Intimate knowledge of crafting highly performant database queries
• Hands-on experience implementing relational database structures, including tables, indexes, views, etc.
• A mindset towards building systems for the cloud and DevOps fundamentals
• Working knowledge of cloud infrastructure services is good to have. If not then willingness to learn should be there.
• Focus towards building security, performance, and scalability into services from the beginning
• Experience with debugging code and troubleshooting technical issues in order to craft appropriate solutions

Development of Web based Applications using latest technologies like, AngularJS, Node.js, SQL Developer, MongoDb. Designing and developing user interfaces using AngularJS best practices. Adapting interface for modern internet applications using the latest front-end technologies, Writing JavaScript, CSS, and HTML, Developing product analysis tasks.

We are looking for Full-stack engineers with a minimum of 2 to 3+ years of exposure to Node JS, Express JS, Mongo DB, and React JS to join our team.

At Aryston Web Solution Pvt. Ltd, you will use the latest software development languages, techniques, and approaches and work with a visionary team to build solutions you can be proud of.

Your role and responsibilities

• Creating solid back-end code with Node JS.
• Writing code in async-await architecture.
• Integrating REST APIs in front-end application using React JS
• Writing mongoose schema efficiently can implement MRC architecture in the express framework
• Implementing business logic in front-end applications using javascript, should be able to handle complex JSON architecture.
• Should be able to manage states using Redux, Redux thunk/saga, Mobx.
• Should be comfortable in using both functional and class components in React.
• Must be familiar with popular React UI libraries like Material UI, Antd.
• Implement best practices and constantly learn new ways of keeping codebases up to date.
• Having knowledge in Typescript, GraphQL, NextJS, Socket.io is like a match made in heaven.
• AWS SDK hands-on experience, Firebase Services experience, Oauth 2.0 handling knowledge are best to have.

Criteria

• 2+ years of work experience with Node JS, Mongo DB Javascript and React JS.
• Proficient understanding of code versioning tools, such as Git.
• You care about the design and user experience of an application. The choice of third-party libraries should be elegant.
• You must respect the timeline of the deliverables and releases.

Why Join Us?

Aryston Web Solution builds robust solutions for clients in 10+ sectors including cybersecurity, education, healthcare, hospitality, insurance, transportation which makes a positive impact in 5+ countries in the world.

We also have our B2B SAAS product and catering a wide range of clients through it.

At Aryston -

• Your work gets recognition from day 1.
• Since we work very closely, We honor the decision and opinions of our colleagues.
• We grow, you grow.
• We explore and learn new things together.
• Fixed working hours.
• We follow proper productive techniques to get things done, so there are fewer phone calls or boring meetings, and of course zero blame game.

REQUIREMENTS:

Location: Bangalore / Mysore

Role: Java Development

Experience:4-10 yrs

Education:

• BS/MS in Computer Science, Engineering, or related subject

Skills:

• 4+ years of software development experience using traditional software development life cycle methodologies (covering requirements, design, development, testing and Implementation of n-tier architecture)
• Extensive experience with object-oriented software development methodologies and practices. Strong in following technologies
• OOAD/OOPS/UML, Design Patterns, MVC, Spring, Hibernate, Java, J2EE
• UI technologies AngularJS, HTML5, CSS3, java script library, Ajax and other UI frameworks
• Exposure to component model design, SOA, open sources framework/tools
• Web Services, JMS, XML, SQL& Oracle
• Must have exposed with Test Driven Development/Re-factoring ideas/ Domain driven design patterns/continuous integration/Build Automation / Data-Mapper framework/Mocks.

Competencies:

• Experience in developing platforms or frameworks, components
• Excellent knowledge of the open source software/ tools/ technologies

Personal Traits:

• Strong comprehension, analytical and problem-solving skills
• Excellent Communication skills (written & verbal) are mandatory

Roles & Responsibilities:

• Understand the functional requirements of the end applications and arrive at the functionality requirement for the platform
• Contribute towards right design and development of multi-tiered, distributed architecture, scalable applications in a client-server / web environment
• Meet project timelines with adequate quality standard
• Technical assessment (e.g. platforms, tool proliferation, age of underlying technologies, uptime/availability, business processes)

"ArisGlobal proudly offers an Impressive Package of Compensation and Benefits. In addition to competitive salary compensation and paid time off, eligible employees receive health care benefits and can participate in healthcare and dependent-care spending accounts that reduce out-of-pockets costs by reducing taxable income. Income protection and wealth accumulation benefits help our employees reach their long-term financial goals."