Full Stack Developer - Node.js/React.js - SaaS Startup

Software Development Engineer (Associate/Intern)

Location: Remote (India preferred) | Type: Full-time | Compensation: Competitive salary + early-stage stock options

🧠 About Alpha

Modern revenue teams juggle 10+ point-solutions. Alpha unifies them into an agent-powered platform that plans, executes, and optimises GTM campaigns—so every touch happens on the right channel, at the right time, with the right context.

Alpha is building the world’s most intuitive AI stack for revenue teams —to engage, convert & scale revenue with an AI powered GTM team. l

Our mission is to make AI not just accessible, but dependable and truly useful.

We’re early, funded, and building with urgency. Join us to help define what work looks like when AI works for you.

🔧 What You’ll Do

You’ll lead the development of our AI GTM platform and underlying AI agents to power seamless multi-channel GTMs.

This is a hybrid UX-engineering role: you’ll translate high-level user journeys into interfaces that feel clear, powerful, and trustworthy.

Your responsibilities:

• Design & implement end-to-end features across React-TS/Next.js, Node.js, Postgres, Redis, and NestJs micro-services for LLM agents.
• Build & document scalable GraphQL / REST APIs that expose our data model (Company, Person, Campaign, Sequence, Asset, ActivityRecord, InferenceSnippet).
• Integrate third-party APIs (CRM, email, ads, CMS) and maintain data sync reliability > 98 %.
• Implement the dynamic agent flow builder with configurable steps, HITL checkpoints, and audit trails.
• Instrument product analytics, error tracking, and CI pipelines for fast feedback and safe releases.
• Work directly with the founder on product scoping, technical roadmap, and hiring pipeline.

✅ What We’re Looking For

• 1–3 years experience building polished web apps (React, Vue, or similar)
• Strong eye for design fidelity, UX decisions, and motion
• Experience integrating frontend with backend APIs and managing state
• Experience with visual builders, workflow editors, or schema UIs is a big plus
• You love taking complex systems and making them feel simple

💎 What You’ll Get

• Competitive salary + high-leverage early equity
• Ownership of user experience at the most critical phase
• A tight feedback loop with real users from Day 1
• Freedom to shape UI decisions, patterns, and performance for the long haul

A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting.

Required Skills:

• Exp. - 3 to 7 years.
• Experience in Core Java and Spring Boot.
• Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns.
• Should have the ability to analyze, design, develop and test complex, low-latency client- facing applications.
• Good development experience with RDBMS.
• Good knowledge of multi-threading and high-performance server-side development.
• Basic working knowledge of Unix/Linux.
• Excellent problem solving and coding skills.
• Strong interpersonal, communication and analytical skills.
• Should have the ability to express their design ideas and thoughts.

About Wissen Technology:

Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals.

Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always ‘first time right’.

Our team consists of 1200+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world.

Wissen Technology offers an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.

We have been certified as a Great Place to Work® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider.

We are seeking an experienced Lead Full Stack Developer with a strong background in the MERN stack and serverless technologies. The ideal candidate will have a minimum of 6 years of experience in software development, with significant expertise in both relational (RDBMS) and NoSQL databases. You will lead a team in designing and developing scalable, high-quality solutions while ensuring best practices are followed throughout the development lifecycle.

Responsibilities:

• Develop and maintain scalable backend services using Node.js and serverless technologies such as AWS Lambda, Google Cloud Functions, or Azure Functions.
• Architect and implement front-end solutions using React.js, ensuring seamless integration with backend services.
• Design, implement, and optimise both relational (PostgreSQL, MySQL) and NoSQL (MongoDB) databases.
• Translate business requirements into robust, efficient technical solutions.
• Conduct code reviews to maintain high standards of code quality, performance, and maintainability.
• Stay updated with the latest trends and advancements in the MERN stack, serverless architectures, and cloud platforms.
• Lead and mentor a team of developers, providing technical guidance and fostering a collaborative environment.
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Requirements:

• Minimum of 6 years of professional experience in software development, with at least 6 years specifically in the MERN stack.
• Proven leadership experience in managing and mentoring development teams.
• Proficiency in Node.js, Express.js, React.js, and MongoDB.
• Hands-on experience with serverless architectures, including AWS Lambda, Google Cloud Functions, or Azure Functions.
• Strong understanding of RDBMS (PostgreSQL, MySQL) and NoSQL databases (MongoDB).
• Solid understanding of RESTful APIs, microservices architecture, and cloud platforms.
• Excellent problem-solving, debugging, and collaboration

Additional Skills:

• Experience with GraphQL, Docker, and Kubernetes is a plus.
• Contributions to open-source projects are highly valued.
• Understanding of DevOps practices and CI/CD pipelines.

Position Overview

We are seeking a highly skilled React Native Developer with a strong background in the MERN (MongoDB, Express.js, React.js, Node.js) stack to join our dynamic team. The ideal candidate will have a minimum of 2 years of professional experience and a proven track record of developing robust, scalable mobile applications using React Native. This role offers an exciting opportunity to work on innovative projects and significantly contribute to the growth and success of our startup.

Key Responsibilities

●     Develop High-Quality Mobile Applications: Create user-friendly mobile applications using React Native, ensuring high performance and responsiveness.

●     Collaborate with Cross-Functional Teams: Work closely with product managers, designers, and other developers to define, design, and deliver new features.

●     Maintain Clean and Efficient Code: Write clean, maintainable, and efficient code following industry best practices and coding standards.

●     Optimize Application Performance: Enhance application performance for speed and scalability.

●     Participate in Code Reviews: Engage in code reviews, discussions, and knowledge-sharing sessions to improve team output and code quality.

●     Troubleshoot and Debug: Identify and resolve application issues to ensure smooth functionality.

●     Stay Updated with Trends: Keep abreast of emerging technologies and trends in mobile development to incorporate best practices.

Requirements

●     MERN Stack Proficiency: Strong expertise in MongoDB, Express.js, React.js, and Node.js.

●     RESTful APIs and Web Services: Solid understanding and experience in integrating RESTful APIs and web services.

●     Version Control Systems: Proficient with Git for version control.

●     Mobile UI/UX Design Principles: Knowledge of best practices in mobile UI/UX design.

●     Problem-Solving Skills: Excellent analytical and problem-solving abilities.

●     Team and Independent Work: Ability to work both independently and as part of a team in a fast-paced startup environment.

●     Communication and Collaboration: Strong verbal and written communication skills, with the ability to collaborate effectively with team members.

Nice to Have

●     GraphQL: Familiarity with GraphQL for efficient data fetching.

●     Cloud Services: Knowledge of cloud services such as AWS or Firebase.

• Writing code for both the front end and the back end using MERN stack [MongoDB, Express.js, React.js and Node. js]
• Creating RESTful API with Node.js
• Maintaining all the required documents for your project.
• Constantly coming up with new ideas and also implementing them to improve the app’s performance.
• Writing code for the app logic as well as the business logic using Reducers, Actions and Redux framework.
• Create Unit and Integration tests to ensure the quality of code

• At iDC, we value your skills more than your background and some certificates. Attempting the assignment will be your door to the opportunity.
• Knowledge of the database and familiarity with the schema design in NoSQL (i.e MongoDB)
• A good understanding of the Software Development Lifecycle
• Knowledge of API design and development using REST
• Good understanding of object-oriented programming(OOP) and OOP patterns.
• Again, You don’t have to know it all in-depth but you should know how to dig the internet for finding the solutions.

We are looking for ambitious hands-on coders who love building web based applications from the ground up and have a special affection for all things JavaScript.

Responsibilities:

• Develop robust, web-based applications interacting with database filesystems and APIs
• Obsess about code quality and readability
• Remain updated on new and evolving client-side technologies, their application to our functionality or architecture goals
• Work closely in a multi-disciplinary structure to deliver world class solutions across web, mobile, and tablets
• Identify and establish best practices and frameworks keeping in mind parameters of performance, responsiveness, security, maintainability, extensibility, and reuse

Must have:

• At least 3 years of experience in developing web based applications with experience in Node.Js
• Skilled at Object Oriented JavaScript and having a working knowledge of at least one of the following MVC Frameworks (Angular, Backbone, Ember, React etc.).
• Knowledge of database, preferably some NoSQL DB like Mongo.
• Familiar with Git version control system

• Think like a product owner
• Design and build new products and manage their delivery
• Drive culture, learning, and development of team members and of the larger org
• Mentor, motivate & ensure delivery from a small team
• Take ownership and get the job done
• Ensure the quality of deliverables

• 4-7 years of hands-on experience in the design and development of applications using NodeJs, ReactJs, MySQL, etc.
• Good architectural and design skills
• Strong coding, data structures, and algorithms
• An engineering degree preferably, from a top-tier school (or an equivalent experience)
• Proficient understanding of code versioning tools, such as Git/SVN
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• Experience in Elastic Search/ Solr/ Amazon AWS
• Experience building sites to function cross-platform and cross-browser
• The ability to own end-to-end responsibility
• The role will give you an opportunity to work with a cross-functional team from Business, Product, and Design, and lead a team of 4-7 rockstar engineers.

• A team of aces, from top-tier schools and startups, to work with
• A fast-paced, data-driven, and fun work environment
• A huge appetite for new, disruptive, creative, and implementable ideas
• An open work culture

• Competitive salary
• A great working environment with an opportunity to work directly with the founders on very exciting real-life problems
• Opportunity to grow really fast.
• Opportunity to hire a team & mentor them.
• ESOPs

Who We are:

Paxcom a leading Digital Solution Provider is a part of Paymentus now, a leading electronic bill payment provider. PaymentUs leads the North American marketplace in electronic bill payment solutions and have recently signed a partnership with Paypal, Alexa and Walmart. We are looking for passionate programmers skilled in Java, Python, Angular, NodeJS, Python, Jenkins, Postgresql, Docker, Kubernetes, Spark and AWS to join our development team.

For more details, please visit https://paxcom.ai/

Why Join Us?

Get a chance to contribute and get recognition from Day 1.

You hate micromanagement and are able to take your decision independently. 

Enjoy flexible and relaxed wok environment.

Work 5 days a week (Enjoy work-life balance).

A friendly, Supportive, Professional and achievement-oriented management team

Competitive remuneration.

An opportunity to learn new things every day.

You Enjoy:

Ideal resource should be from Java background with a minimum of 3+ years’ experience in Java technologies.

Should have extensive experience working with Spring, Any ORM and Restful Web services.

Strong experience building, designing, and consuming Restful web services.

Must have experience with spring boot/Spring MVC

1+ years’ experience with one or more JS frameworks: NodeJS/Express, Angular, React, ExtJS, Vue is preferred

Experience / Knowledge of Agile Scrum methodology.

Should have used GIT and be self-dependent on resolving merge conflicts.

Should be familiar with build tool like Maven or Gradle.

Excellent verbal and written communication skills.

Ability to handle small teams and mentor them.

Leader, Doer & Architect for Enterprise Java applications

Experience of payment card industry is a plus.

Tech Stack:

Java 8+

Microservices

REST 

Spring Framework 4/5

MySQL 5.6/Oracle

Nice To have (CPM Scheduling, Angular/React, NodeJS)

Linux, GIT, Docker, kubernetes, Cloud, AWS,Kafka

Building tools like Maven, Ant, Gulp