MERN Developer

Strong Full stack developer Profile

Mandatory (Experience 1) - Must Have Minimum 5+ YOE in Software Development,

Mandatory (Experience 2) - Must have 4+ YOE in backend using Python.

Mandatory (Experience 3) - Must have good experience in frontend using React JS with knowledge of HTML, CSS, and JavaScript.

Mandatory (Experience 4) - Must have Experience in any databases - MySQL / PostgreSQL / Postgres / Oracle / SQL Server /

Job Title: Tech Lead – Full Stack

Location: MG Road, Bangalore

Work Mode: Hybrid

Interview Mode: Virtual

Experience Required: 7–12 Years

Role Overview

We are looking for a Tech Lead – Full Stack with 7 to 12 years of experience in developing scalable SaaS products using Java, Spring Boot, and JavaScript frameworks. The ideal candidate has hands-on experience with microservices architecture, performance optimization, and cloud-native development, and is passionate about mentoring teams and driving engineering best practices.

Key Skills & Expertise

• Proficient in building scalable SaaS products with a focus on microservices architecture.
• Technologies: Java (Mandatory), Spring Boot, ReactJS or any other JavaScript framework.
• Strong experience in designing RESTful APIs and using mocking frameworks.
• Skilled in profiling services and debugging performance issues.
• Knowledge of Docker and Kubernetes for containerization.
• Familiar with data integration tools such as Pentaho Kettle or Apache Nifi.
• Ability to influence technical decision-making, with a strong focus on automation and security best practices.

What You Will Do

• Design, implement, test, and deploy both front-end and back-end components of the product.
• Build and deliver highly scalable services using Spring Boot.
• Develop frameworks and accelerators to speed up development.
• Establish and enforce engineering best practices.
• Create and review design artifacts using UML for team-wide implementation.
• Mentor and guide product engineers within the team.
• Ensure on-time delivery of user stories planned for sprints.
• Engage in all stages of the product development lifecycle – from planning and design to implementation and testing in multi-cloud environments.
• Deliver robust, quality-focused technical solutions to business problems.
• Work alongside a talented team solving complex technical challenges in building large-scale SaaS products.
• Contribute from the ground up to the architecture and modularization of the product for long-term scalability and maintainability.
• Share knowledge and expertise by writing blogs, articles, and whitepapers.

 Technical Requirements

• Design and implement microservices architectures using Java and Spring Boot.
• Create, manage, and secure RESTful APIs.
• Collaborate with cross-functional teams in an Agile setting to ensure high-quality delivery.
• Mentor and support junior developers on the team.
• Experience with cloud platforms such as Azure or GCP, and orchestration tools like Docker and Kubernetes.
• Strong database skills in PostgreSQL.
• Exposure to:
• API Gateway
• Hibernate & JPA
• Transaction Management
• ACID Properties
• Multithreading & Context Switching
• Healthcare domain experience is a plus.

Job Title : React + Node.js Developer (Full Stack)

Experience : 5+ Years

Location : Mumbai or Pune (Final location to be decided post-interview)

Notice Period : Immediate to 15 Days

Interview Rounds : 1 Internal Round + 1 Client Round

Job Summary :

We are looking for a highly skilled Full Stack Developer (React + Node.js) with strong expertise in both frontend and backend development.

The ideal candidate should demonstrate hands-on experience with databases, excellent project understanding, and the ability to deliver scalable, high-performance applications in production environments.

Mandatory Skills :

React.js, Node.js, PostgreSQL/MySQL, JavaScript (ES6+), Docker, AWS/GCP, full-stack development, production system experience, and strong project understanding with hands-on database expertise.

Key Responsibilities :

• Design, develop, and deploy robust full-stack applications using React (frontend) and Node.js (backend).
• Exhibit a deep understanding of database design, optimization, and integration using PostgreSQL or MySQL.
• Translate project requirements into efficient, maintainable, and scalable technical solutions.
• Build clean, modular, and reusable components following SOLID principles and industry best practices.
• Manage backend services, APIs, and data-driven functionalities for large-scale applications.
• Work closely with product and engineering teams to ensure smooth end-to-end project delivery.
• Use Docker and cloud platforms (AWS/GCP) for containerization, deployment, and scaling of services.
• Participate in design discussions, code reviews, and troubleshooting production issues.

Required Skills :

• 5+ Years of hands-on experience in full-stack development using React and Node.js.
• Strong understanding and hands-on expertise with relational databases (PostgreSQL/MySQL).
• Solid grasp of JavaScript (ES6+), and proficiency in Object-Oriented Programming (OOP) or Functional Programming (FP).
• Proven experience working with production-grade systems and scalable architectures.
• Proficiency with Docker, API development, and cloud services (preferably AWS or GCP).
• Excellent project understanding, problem-solving ability, and strong communication skills (verbal and written).

Good to Have :

• Experience in Golang or Elixir for backend development.
• Knowledge of Kubernetes, Redis, RabbitMQ, or similar distributed tools.
• Exposure to AI APIs and tools.
• Contributions to open-source projects.

About the Role:

We are seeking a highly skilled Integration Specialist / Full Stack Developer with strong experience in .NET Core, API integrations, and modern front-end development. The ideal candidate will build and integrate scalable web and mobile applications, manage end-to-end delivery, and ensure smooth data exchange across platforms.

Key Responsibilities:

• Design, develop, and maintain backend APIs using .NET Core / C#.
• Build and integrate REST and SOAP-based services (JSON, XML, OAuth2, JWT, API Key).
• Implement file-based integrations (Flat file, CSV, Excel, XML, JSON) and manage FTP/SFTP transfers.
• Work with databases such as MSSQL, PostgreSQL, Oracle, and SQLite — including writing queries, stored procedures, and using ADO.NET.
• Handle data serialization/deserialization using Newtonsoft.Json or System.Text.Json.
• Implement robust error handling and logging with Serilog, NLog, or log4net.
• Automate and schedule processes using Quartz.NET, Hangfire, or Windows Task Scheduler.
• Manage version control and CI/CD pipelines via Git and Azure DevOps.
• Develop front-end interfaces with React and React Native ensuring responsive, modular UI.
• Implement offline-first functionality for mobile apps (sync logic, caching, etc.).
• Collaborate with cross-functional teams or independently handle full project ownership.
• Utilize AI-assisted development tools (e.g., Cursor, GitHub Copilot, Claude Code) to enhance productivity.
• Apply integration best practices including middleware, API gateways, and optionally message queues (MSMQ, RabbitMQ).
• Ensure scalability, security, and performance in all deliverables.

Key Skills & Technologies:

• Backend: .NET Core, C#, REST/SOAP APIs, WCF, ADO.NET
• Frontend: React, React Native
• Databases: MSSQL, PostgreSQL, Oracle, SQLite
• Tools: Git, Azure DevOps, Hangfire, Quartz.NET, Serilog/NLog
• Integration: JSON, XML, CSV, FTP/SFTP, OAuth2, JWT
• DevOps: CI/CD automation, deployment pipelines
• Optional: Middleware, API Gateway, Message Queues (MSMQ, RabbitMQ)

Qualifications:

• Bachelor’s degree in Computer Science, Engineering, or a related field.
• Minimum 5 years of hands-on experience in software development and integration.
• Proven expertise in designing and implementing scalable applications.
• Strong analytical and problem-solving skills with a proactive approach.

Nice to Have:

• Experience with cloud services (Azure, AWS, GCP).
• Knowledge of containerization tools like Docker or Kubernetes.
• Familiarity with mobile deployment workflows and app store publishing.

Nature of project – Product development.

Key skills: Java full stack developer with React Js experience.

Key Responsibilities

• Advance the state of the art in building Microservices with Java and frontend applications with React JS.
• Design and Develop Cloud based, web applications for SMBs
• Design and develop the front end for customer-facing applications using MVC framework
• Design and develop supporting components and Microservices for the backend tiers focusing on fault-tolerance and scalability in a multi-tenant B2B2C environment
• Team with top-notch engineers, product managers, Dev Ops and QA following agile development methodologies
• Review functional requirements, providing technical feedback on feasibility and architectural approach and framework.
• Develop technical specifications
• Contribute to test plan development.
• Create Prototype and/or Proof of Concepts (POCs) when necessary
• Act in a technical leadership capacity: Mentor junior engineers and new team members, perform code reviews and apply technical expertise to challenging programming and design problems
• Manage and maintain Cloud infrastructure
• Maintain and improve the functionality and performance of the existing web applications; refactor legacy codebase
• Help shape and execute the technical roadmap to develop next generation features; integrate corporate- and product-level architecture principles and goals into the teams project work through designs, implementation strategies, and project planning.
• Drive a culture of quality, technical curiosity, continuous improvement, and evidence-based data driven decision making in the organization.
• Lead team in software development best practices including Peer Code Review, Unit testing, Automated Deployments, and Automated Testing.
• Write technical documentation

1. Building REST APIs using Node.js, Express, and MongoDB
2. Working on Flutter application development using various advanced strategies like state management, API integrations, and scalable databases
3. Working with Socket.io library for Flutter and Node.js product development
4. Learning and developing the cryptographic functions for product security
5. Managing product workloads on public/private cloud - we are currently on AWS & also planning to be on GCP/Azure (our platform would also be available as on-premise deployment, you will handle these deployments)
6. Develop API based architecture in order to ensure the business growth and integration-al capabilities of the product
7. Work on using GIT and CI-CD for product version control and continuous delivery

Job Description – Full stack developer

Company background

Lithion Power operates an IoT-enabled, data-driven Intelligent Energy platform (IEP) for Electric Vehicles (EVs) - this includes smart charging & swapping infrastructure along with software that enables you to track&control assets in real-time and facilitate optimal energy utilization for Electric Vehicles.

We are working with EV OEMs, battery manufacturers, fleet operators, asset managers & other entities in the EV ecosystem to make an EV-only India, a reality by 2030!

Key Expectations

• Design, develop and maintain efficient, reusable, flexible, scalable, robust and reliable Angular7/8/9 and Node.js code with proper documentation (like test cases).
• Should possess a good knowledge of HTML/CSS& technology architecture.
• Integration with cloud-based data storage using MongoDB, Redis.
• Integration of user-facing elements created by front-end developers with server-side logic.
• Identify bottlenecks/bugs and devise solutions to these problems.
• Maintain code quality, proper organization, and adequate automation for periodic tasks.

Qualifications required / Key eligibility criteria

• 2-4 years as a full-stack developer (preferably in a Product company).
• Hands-on experience in planning, developing, implementing and maintaining large-scale, data-intensive, real-time solutions.
• BE/B.Tech in CSE/IT/Software OR MCA/ME/M.Tech (preferred).
• Experience with embedded systems & driving automation projects is a plus.

Technical Expertise

• Languages - Javascript , Typescript, Python
• Web Design - HTML, CSS
• Frameworks – Angular 2/higher, Express, Sails.Js
• Databases - MongoDB, DynamoDB, MySQL
• Additional tools - Apache Kafka, AWS (EC2, S3, Lamda), Docker CE, Apache NGINX, Apache Bench, RESTful API, Jira, Asana, Slack
• OS - Linux, Ubuntu

The Company culture is suitable for “high achievers with a can-do attitude”! Benefits include attractive ESOPs.

If the above mentioned job profile suits you, then kindly email me your updated resume.

For more details about the company, kindly visit http://www.lithionpower.com">www.lithionpower.com

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