Full Stack Engineer (MEAN / MERN)

Java Developer – Job Description Wissen Technology is now hiring for a Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. 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. - 4 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. 

Role Overview

We are looking for an Engineering Manager who thrives in a fast-paced startup environment, is hands-on with development, and can lead our engineering team to build and scale robust, high-performing systems. You will drive architectural decisions, mentor a team of talented engineers, and collaborate closely with product, design, and business teams to execute our ambitious roadmap. You will be at the forefront of scaling our infrastructure to support billions of messages, ensuring real-time engagement for businesses at scale.

Key Responsibilities

• Technical Leadership: Own the engineering roadmap, ensuring scalability, reliability, and performance of our systems.
• Hands-on Development: Dive into the code when necessary, set high coding standards, and lead by example.
• Team Management: Lead, mentor, and scale a high-performing engineering team, fostering a strong culture of ownership and innovation.
• System Scalability: Architect and optimize scalable and resilient backend & frontend systems handling millions of messages per day.
• High Availability & Performance: Design systems that can handle billions of API calls and ensure minimal downtime.
• Agile Execution: Drive sprint planning, prioritization, and timely delivery of features in an agile development environment.
• Collaboration: Work closely with product, design, and business teams to align engineering efforts with company goals.
• DevOps & Security: Ensure best practices for CI/CD, cloud infrastructure (AWS/GCP), and security compliance.
• Tech Stack Evolution: Stay ahead of emerging technologies and drive innovation in AiSensy’s architecture.

What You Bring

• 8+ years of experience in software development, with at least 2 years in a leadership/managerial role.
• Expertise in modern tech stacks – Proficiency in MERN (MongoDB, Express, React, Node.js) stack or similar.
• Strong knowledge of cloud platforms (AWS) and microservices architecture.
• Proven experience in scaling high-traffic, distributed systems handling billions of messages per month.
• Hands-on experience with Docker, Kubernetes, and CI/CD pipelines.
• Strong problem-solving skills and an ability to hustle in a fast-paced startup environment.
• Excellent communication skills and a data-driven decision-making approach.
• Passion for building great products, coaching engineers, and driving tech excellence.

What We Offer

• Competitive Compensation & Benefits aligned with your experience and the impact you bring.
• Opportunity for Growth in a rapidly expanding B2B SaaS company.
• Cutting-Edge Technology & Projects in the WhatsApp Business API and Click to WhatsApp Ads space.
• Collaborative Work Environment that fosters innovation, learning, and career development.
• Flexible & Inclusive Culture, where every team member has a voice and the chance to make a significant impact.

We are seeking a talented Full Stack Developer with 6+ years of experience to build and maintain scalable web and mobile-based applications. The ideal candidate should have strong expertise in modern frontend and backend technologies, along with excellent communication skills and the ability to interact directly with clients and stakeholders.

Key Responsibilities

▪️Develop and maintain web and mobile applications across the full stack

▪️Build high-quality, responsive UI using Next.js, React.js, HTML, CSS, Tailwind CSS

▪️Develop backend services and REST APIs using Node.js and PHP

▪️Design and manage databases such as MySQL, PostgreSQL, and MongoDB

▪️Integrate frontend with backend systems and third-party services

▪️Understand business requirements and translate them into technical solutions

▪️Participate in client meetings, requirement gathering, and demos

▪️Ensure performance, scalability, and security of applications

▪️Debug, troubleshoot, and upgrade existing systems

▪️Collaborate with cross-functional teams (design, QA, product)

Required Technical Skills

Frontend

▪️Strong experience in: Next.js, React.js, HTML5, CSS3, Tailwind CSS

▪️Good understanding of responsive design and cross-browser compatibility

Backend

▪️Hands-on experience with: Node.js (Express.js preferred), PHP (Core PHP / Laravel is a plus), Python

Database

▪️Experience with: MySQL, PostgreSQL, MongoDB

Other Skills

▪️REST API development and integration

▪️Version control systems (Git)

▪️Understanding of deployment, hosting, and server environments

Soft Skills (Mandatory)

▪️Excellent communication and interpersonal skills

▪️Proven experience in client-facing roles / client handling

▪️Ability to gather, analyze, and explain technical requirements to clients

▪️Strong problem-solving and analytical thinking

▪️Ability to work independently and in a team environment

Experience Requirements

▪️6+ years of hands-on experience in full stack development

▪️Experience working on live web/mobile applications

▪️Experience in handling end-to-end project delivery

▪️Prior experience in client interaction is mandatory

Good to Have

▪️Experience with Next.js SSR / SSG

▪️Exposure to mobile app backend integration (Android/iOS APIs)

▪️Familiarity with cloud platforms (AWS, Azure, etc.)

▪️Knowledge of CI/CD pipelines

Education

▪️Bachelor’s degree in Computer Science, IT, or a related field (preferred)

Hiring for the position of Full Stack Developer responsible for managing back-end services and the interchange of data between the server and the users.Your primary focus will be the development of all server side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the frontend elements built by your co-workers into the application. Therefore, a basic understanding of frontend technologies is necessary as well.

Job Profile: -

●        Create and consume restful APIs

●        Design, develop, and maintain internal and external applications

●        Build efficient, testable, and reusable modules

●        Write high quality, structured application/interface code and documentation

●        Identify solutions through research and collaboration that resolves the root of problems as they arise

●        Define functional and technical requirements for application software to develop skills and knowledge

●        Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality

●        Contribute in all phases of the development lifecycle

Requirement

∙ Proficient in Node.JS and ReactJS development stack

∙ 2+ years’ experience designing, querying, and updating databases in MySQL/nosql

∙ Basic understanding of web technologies including HTML, CSS, JavaScript, AJAX etc.

∙ Passion for best design and coding practices and a desire to develop new bold ideas.

• 6+ years of experience in software development with strong expertise in Java (8+), JavaScript, HTML, CSS, PL/SQL.
• Hands-on expertise in frameworks and tools: Spring Boot, ReactJS, NodeJS, REST, SOAP.
• Version Control: Proficient in Git.
• Backend & Databases: Experience with Oracle and Postgres DB (Shining Stars).
• CI/CD Tools: Skilled in Jenkins, GitHub, TDD/BDD.
• Testing Tools: Practical experience with ReadyAPI, Postman, Jest, JUnit.
• Cloud Technologies: Exposure to OCI, Azure, AWS.
• AI Tools: Familiar with GitHub Copilot.
• Containerization & Architecture: Proficient in Docker, Kubernetes (K8s), Microservices, Microfrontend.
• Nice to Have: Test automation experience with Selenium, Java Cucumber, and Kafka

About the company

Adia makes clinicians better diagnosticians.

Adia is set to revolutionize the diagnostic process for both doctors and patients. Leveraging our extensive knowledge and experience in medicine, coupled with advanced technology and AI, we aim to improve diagnostic accuracy while also reducing and optimizing costs. This leads to more satisfied patients, efficient doctors, and less financial burden for all involved. 

Adia enables advanced clinical decision support (CDS) and guides lab test selection and result interpretation by using patient’s data and clinical context. On top of that Adia changes how healthcare providers get paid by combining predictive and guiding diagnostic decisions with medical claim factoring that advances payments to providers. The whole medical journey is getting automated. 

By effectively "underwriting" medical services to confirm payment eligibility from health plans, Adia ensures real-time payments to providers. This frees providers from the uncertainties of payer reimbursements, enabling predictable cash flow for better business management and patient care. 

Adia commits to building products with the latest technology, finest predictive models, LLMs, a comprehensive medical Knowledge Graph, and more.

Visit our website: https://www.adia.ai/

To achieve that we need to build a world-class Financial platform, which can perform financial projections for a lab order in matter of milliseconds and move money between all healthcare actors involved with traceability in place.

What you'll be doing

The ideal candidate will be responsible for managing and inspiring his or her team to achieve their performance metrics. Your collaborative attitude and interpersonal skills will help you thrive as an Engineering Manager.

You will be in charge of building the Financial platform team from scratch. This team will be responsible for covering “Revenue cycle management” and “Money movement” product areas.

Your first 90 days

• Your first two weeks will focus on onboarding. You'll work on small coding tasks to learn our tech stack, system architecture, and medical domain basics.
• Next month, you will collaborate with the Product Manager to develop a comprehensive team roadmap and initiate the recruitment process for essential team members.
• By the end of your third month, you'll have a common managerial routine, including team rituals, one-on-one meetings, planning for future product cycles, and active participation in management team initiatives.

Primary Responsibilities

• Hiring great talent and adjusting hiring process to meet team’s needs.
• Planning together with the team a roadmap for product cycles.
• Manage, coach, and support engineering team. Coaching and growing engineers to the point where they can take large, loosely defined projects, and deliver them with little intervention.
• Providing feedback on product and technical specs to help engineers identify where to cut scope or improve quality.
• Fixing small bugs or doing small improvements to our tech stack while staying off the critical path.
• Communicate team goals and ensure project timelines are met

Requirements

• At least 12+ years experience in Software development roles
• 3+ years' experience as Engineering manager.
• 5+ years experience as Lead Engineer.
• Proficiency in Node.js, JavaScript, TypeScript, PostgreSQL, NoSQL and Cloud
• Self motivated , thought leader with proven Engineering leadership skills
• US Health care domain expertise is preferred
• Fintech and exposure to payment gateway systems will be added advantage

We are looking for experienced Full Stack Web Developers. Web Application developer who possesses a passion for pushing web technologies to the limits and will work with our team of talented engineers to design and build the next generation of our web applications.

Responsibilities

• Design and build scalable, mobile-first web applications
• Collaborate with cross-functional teams to define, design, and ship new features
• Unit-test code for robustness, including edge cases, usability, and general reliability
• Work on bug fixing and improving application performance
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency

Skills

• BS/MS degree in Computer Science, Engineering or a related subject.
• 3 to 5 years of industry experience as a Full Stack Developer with focus in React.js and Node.js 
• Experience with Express.js and Node.js is a must.
• Experience with third-party libraries and APIs is required.
• Experience using Google Firebase is an asset.
• Experience in UI/UX design is preferred.
• You should also be up to speed on practices like TDD, CI/CD, and pair programming.
• You should be very comfortable working with Agile, Lean and Continuous Delivery practices -- and love it as much as we do.
• Understanding and playing a part in the entire cycle of software consulting and delivery (ideation, project conception, UX, code, testing, deployment, and around again).
• Working knowledge of the general web application landscape, architectures, trends, and emerging technologies.
• Solid understanding of the application development life cycle.