Full Stack Developer - AI Platform

Position Name : Senior Software Developer (Node.js/RoR/Swift/React)

Experience : 5 to 10 Years

📍 Location : Remote

Notice Period : Immediate to 15 Days

Role Overview :

We are looking for a highly skilled Senior Software Developer with expertise in Node.js, Ruby on Rails (RoR), React, and Swift.

The ideal candidate should have strong problem-solving skills, hands-on development experience, and a deep understanding of software architecture, design principles, and TDD best practices.

Key Responsibilities :

• Backend-Heavy Full-Stack Development : Strong focus on Ruby on Rails (RoR) for backend and React for frontend.
• Test-Driven Development (TDD) : Follow TDD principles to ensure high-quality code.
• Software Architecture & Design : Implement scalable and maintainable solutions.
• Data Structures & Algorithms : Optimize performance and ensure efficient solutions.
• Clean Code Practices : Write modular, reusable, and well-documented code.
• Agile Development : Work in an Agile environment with CI/CD pipelines.
• Full-Stack Ownership : Manage both backend and frontend development, including deployment.
• Peer Collaboration : Participate in code reviews, pair programming, and knowledge sharing.

Technical Skills & Experience :

Must-Have :

• Ruby on Rails (RoR) - Backend
• React.js - Frontend
• Strong expertise in architecture, design, and hands-on development.
• Excellent understanding of Data Structures & Algorithms.
• Proven experience with TDD principles.
• Excellent communication skills.

Good to Have :

• Experience with Node.js, TypeScript, Swift, and JavaScript
• Familiarity with relational databases and web frameworks
• CI/CD tools like Jenkins, Hudson, or Bamboo.

Experience: 5+ years

Location: Mumbai - Andheri Marol

Company: Wissen Technology

Website: www.wissen.com

Job Description:

Wissen Technology is currently hiring experienced Full Stack Java Developers with strong expertise in Core Java, Spring Boot, front-end technologies (Angular/React), REST APIs, multithreading, data structures, and SQL.

You will be working on enterprise-grade solutions as part of a global development team tackling complex problems in domains like Banking and Finance.

This is an excellent opportunity to be part of a high-caliber, technically strong team delivering impactful solutions for Fortune 500 companies.

Key Responsibilities:

• Develop and maintain scalable, high-performance applications with a focus on both backend (Java/Spring Boot) and frontend (Angular/React).
• Participate in all phases of the development lifecycle – design, coding, testing, deployment, and maintenance.
• Work closely with cross-functional teams to understand requirements and deliver quality solutions.
• Optimize application performance and ensure responsiveness across platforms.
• Write clean, maintainable, and well-documented code.

Required Skills:

• 5+ years of hands-on experience in Java, Spring Boot.
• Strong proficiency in frontend frameworks like Angular or React.
• Experience with RESTful APIs, microservices, and web technologies (HTML, CSS, JavaScript).
• Sound knowledge of data structures, algorithms, and multithreading.
• Experience in developing and deploying enterprise-grade applications.
• Solid understanding of RDBMS (e.g., Oracle, MySQL, PostgreSQL).
• Exposure to DevOps practices, version control (Git), and CI/CD pipelines.
• Familiarity with Unix/Linux environments.
• Strong problem-solving, communication, and analytical skills.

Good to Have:

• Exposure to cloud platforms like AWS, Azure, or GCP.
• Understanding of containerization using Docker/Kubernetes.
• Knowledge of Agile methodologies.

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.

About Us

HighLevel is an AI powered, all-in-one white-label sales & marketing platform that empowers agencies, entrepreneurs, and businesses to elevate their digital presence and drive growth. We are proud to support a global and growing community of over 2 million businesses, comprised of agencies, consultants, and businesses of all sizes and industries. HighLevel empowers users with all the tools needed to capture, nurture, and close new leads into repeat customers. As of mid 2025, HighLevel processes over 4 billion API hits and handles more than 2.5 billion message events every day. Our platform manages over 470 terabytes of data distributed across five databases, operates with a network of over 250 microservices, and supports over 1 million hostnames.

Our People

With over 1,500 team members across 15+ countries, we operate in a global, remote-first environment. We are building more than software; we are building a global community rooted in creativity, collaboration, and impact. We take pride in cultivating a culture where innovation thrives, ideas are celebrated, and people come first, no matter where they call home.

Our Impact

As of mid 2025, our platform powers over 1.5 billion messages, helps generate over 200 million leads, and facilitates over 20 million conversations for the more than 2 million businesses we serve each month. Behind those numbers are real people growing their companies, connecting with customers, and making their mark - and we get to help make that happen.

About the Team

Currently we have millions of sales funnels, websites, attributions, forms and survey tools for lead generation. Our B2B customers use these tools to bring in the leads to the HighLevel CRM system. We are working to continuously improve the functionality of these tools to solve our customers’ business needs. In this role, you will be expected to be autonomous, guide other developers who might need technical help, collaborate with other technical teams, product, support and customer success

About the Role

We are looking for an experienced software engineer with strong technical and communication skills who has developed full stack web apps, created solid APIs and beautiful interfaces for consuming them in user friendly apps. Focusing on details and well written self documented code are essential for this position. You can expect to collaborate with a solid team of designers, product managers, developers and testers on a daily basis. You must be experienced in building highly scalable and resilient systems that can meet our customer needs.

Responsibilities

• Create new reporting features and improve the existing functionalities.
• Build backend & Frontend API features and architecture.Work cross-functionally across our platform, experience, CRM and other teams.Drive performance through benchmarking and optimization
• Work with a wide range of systems, processes, and technologies to own and solve problems from end to end.
• Collaborate closely with our leadership team including engineers, designers, and product managers to build new features and productsUphold high engineering standards and bring consistency to the many codebases and systems you will encounter.Architect and build backend & Frontend APIs and features

Your Core Skills

• 2.5+ years of experience as a full-stack software engineer.
• 1+ years experience with Vue.js/React.js
• Proficient with various programming languages and tools such as but not limited to Javascript, TypeScript, Vue.js, NodeJS, and GraphQL.
• Experience with databases such as MySQL/PostgreSQL or MongoDB. Good to have a working knowledge of Redis and Firebase/Firestore.
• Must be able to work with a team and collaborate remotely.
• You have an entrepreneurial mindset, are eager to take on different roles when necessary and know how to navigate a start-up environment.
• You are fulfilled by being a generalist working on both the frontend, backend, and anything it takes to solve problems and delight users and take pride in working on projects involving a variety of technologies and systems.
• Ability to stitch together many different services and processes together, even if you have not worked with them before.
• Hold a great deal of empathy for your team and users, you are a steward of crafting great experiences.Have great communication skills and can thrive in a highly collaborative environment when working cross-functionally with many stakeholders.
• Driven by product quality, and innately know how to balance trade-offs with time to launch new features.A
• keen eye for design and love to think about user flows and user experiences.Must have experience with HTML5 and CSS3

Additional Skills

• Experience with the Nuxt.js framework is a plus.
• Experience with MongoDB profiling and query optimization.
• Using CSS frameworks such as Bootstrap and TailwindCSS
• Experience working in the GCP (Google Cloud Platform) ecosystem.

EEO Statement: 

The company is an Equal Opportunity Employer. As an employer subject to affirmative action regulations, we invite you to voluntarily provide the following demographic information. This information is used solely for compliance with government recordkeeping, reporting, and other legal requirements. Providing this information is voluntary and refusal to do so will not affect your application status. This data will be kept separate from your application and will not be used in the hiring decision.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Professional development experience, working the Full stack on large scale B2B, SaaS products. • Expertise with learning new technologies and strong experience with our tech stack AngularJS, JavaScript, Node.js, Go, React.js and Postgres. • Bachelor’sin Computer Scienceorsolid knowledgeof CS fundamentals(OOP, designpatterns, algorithms, etc...) • Experience and adesire towork in a fast-paced environment. • We are a leading cloud-based open platform used by some of the most prestigious companies around • You will get to work with some of the most complex technologies on the market today • You will have an opportunity to work at all levels of the organization.

Year of experience- 2+ years

Skills

• Experience with designing, developing, deploying, and maintaining secure and scalable web-based applications.
• Experience using JavaScript based frameworks- ReactJS/AngularJS, HTML/CSS, Java Script, XML, jQuery, NodeJS, Express and other related technologies.-Good understanding of data structures and algorithm-Familiarity with databases.
• Experience working with container technologies like Docker and knowledge of CI/CD processes for automated integration and deployment.-Basic knowledge of AWS preferred.

• Experience with Scrum or other Agile development methodologies.-Comfortable working in multi-disciplinary, self-organized teams.-Good at written and verbal communication skills.

• Design and develop high-quality software used by millions of customers, in an agile and iterative development culture.
• Support and maintain existing applications and develop new modules as and when required for feature enhancements.
• Adopt best practices in web development, design, testing, code review, version control, documentation, build, deployment, and operations.
• Participate in design reviews, code reviews, and provide improvement recommendations.
• Working closely with product lead, delivery lead, and other agile team members, and ensures that the desired result for our projects are achieved.

• Build the front-end of applications through appealing visual design
• Good understanding of REACT application, Native Android, System architecture, and workflows
• Experience with function and class components, hooks and material UI, CSS, styled-components preferred
• Understanding of RESTful APIS, HTML/CSS, ES6 (variables and scoping, array methods), GIT, popular frontend development tools, CI/CD tools, DevOps
• Understanding in JavaScript, object model, DOM manipulation and event handlers, DataStructures, Algorithms, JSX
• Must have knowledge in Script frameworks ReactJS, Redux, jQuery and Android Language: Typescript/ JavaScript/ JAVA / XML
• Build reusable code and libraries for future use
• Good problem-solving, Open-minded team player, troubleshooting skills

Title: Software Development Engineer Fullstack

Duration: Permanent / Fulltime

• Development and potentially maintenance of advanced software systems and their features.
• Interact with customers and partners to scope and estimate user stories from acceptance criteria.
• Produce highly testable code with an emphasis on quality and correctness.
• Work alongside other engineers to improve technology, while consistently applying established effective software development practices.
• Attend regular project meetings, report on progress and setbacks, and participate in both planning and retrospective exercises.
• Proficient in .NET Core /C# ,Strong in OOPs, MVC, Design patterns, SOLID principles, Web API,  SQL Server.HTML5, CSS3, JavaScript/Type scripting and web development frameworks.
• Expertise in React, Nodejs,
• 3 years of SQL server development 
• Database design SOAP, REST