11+ System integration testing Jobs in Delhi, NCR and Gurgaon | System integration testing Job openings in Delhi, NCR and Gurgaon

• Hands-on expertise in managing technical teams and work closely with business stakeholders
• Should be familiar with card testing and POS ecosystem.
• Experience with designing APIs and building platform integrations in Commerce, POS, FinTech and Payments
• Payment’s domain experience.
• Extensive experience on Base24 & SWITCH part for payment format.
• Exposure on ISO8583 Messaging system.
• API understanding and creation.
• Working knowledge on cryptographic algorithms (RSA, EC, AES, SHA variants), TLS/SSL protocols. C Symetric and A symetrics, K.M.S.
• Digital Payments technical knowledge - QR/ POS/ UPI/ BQR
• Understanding of CI/CD pipelines, Kubernetes, containerization, Docker
• Must have strong technical skills in Android APK and iOS development Concept and Web services.
• Supportability, monitoring, ops in general.
• Accurate cost models to deploy and operate
• Extensive experience in TLOG’s, data integration with downstream applications, and impact of POS changes on different financial, legal, compliance, loss prevention, etc. applications.
• Extensive experience with payment systems 7861 (EMV, payment middleware, encryption, tokenization, settlement, offline scenarios,).
• Extensive experience with different types of payment methods including credit, debit, gift cards (Both closed loop and open loop), PLCC, PayPal, AliPay, checks, etc. as well as different payment form factors like Tap N Go, contactless, swipe, EMV, Mobile, etc.
• Extensive experience with payment devices (pin pads, printers, registers, scanners).
• Experience in Node.js / Java / Python, building REST APIs, with experience/exposure to front end stack like JavaScript & React / Angular. 
• Experience with Storage systems - RDBMS, NoSQL (Cassandra/MongoDB), Redis/Memcache/Aerospike.
• Experience in messaging tools like Kafka/AWS Kinesis etc...
• Design expertise for performance, scalability, fault tolerance and high availability

• Experience with POS systems and Payments domain.
• Demonstrated experience for systems architecture, design, and integration for POS systems
• Java and/or Node.js. Experience building micro services (REST APIs) using Node.js
• Experience with one or more RDBMS databases like MySql, PostGreSQL
• Experience with one or more NoSQL databses like MongoDB, Cassandra, DynamoDB, Aerospike, Elastic Search, Redis, neo4j etc.,
• Caching technologies like: Redis, Elasticache,
• Cloud Providers like: AWS/ Google Cloud / Azure
• CI / CD : Jenkins, Docker, Kubernete
  

Position Title : Java Full Stack Developer

Location : Noida Sector 125

Experience : 5+ Years

Availability : Immediate

Job Summary :

We are looking for a Java Full Stack Developer with expertise in Microservices architecture to join our team.

The ideal candidate should have hands-on experience in Java, Spring Boot, Hibernate, and front-end technologies like Angular, JavaScript, and Bootstrap. You will work on enterprise-grade applications that enhance patient safety worldwide.

Key Responsibilities :

• Design, develop, and maintain applications based on Microservices architecture.
• Work with Java, Spring Boot, Hibernate, Angular, Kafka, Redis, and Hazelcast to build scalable solutions.
• Utilize AWS, Git, Nginx, Tomcat, Oracle, Jira, Confluence, and Jenkins for development and deployment.
• Collaborate with cross-functional teams to develop enterprise applications.
• Develop intuitive UI/UX components using Bootstrap, jQuery, and JavaScript.
• Ensure applications meet performance, scalability, and security requirements.
• Participate in Agile development while efficiently handling changing priorities.
• Conduct code reviews, debugging, and performance optimization.

Required Skills & Qualifications :

✔ 5+ Years of hands-on experience in Java 7/8, Spring Boot, and Hibernate.

✔ Strong understanding of OOP concepts and Design Patterns.

✔ Experience working with relational databases like Oracle/MySQL.

✔ Proficiency in Bootstrap, JavaScript, jQuery, HTML, and Angular.

✔ Hands-on experience in Microservices-based application development.

✔ Strong problem-solving, debugging, and analytical skills.

✔ Excellent communication and collaboration skills.

✔ Ability to adapt to new technologies and handle multiple priorities.

✔ Experience in developing high-quality web applications.

Good to Have :

➕ Exposure to Kafka, Redis, and Hazelcast.

➕ Experience working with cloud-based solutions (AWS preferred).

➕ Familiarity with DevOps tools like Jenkins, Docker, and Kubernetes.

Why Join Us?

✅ Work on cutting-edge technologies and enterprise-level applications.

✅ Collaborative and innovative work environment.

✅ Competitive salary and career growth opportunities.

Unstop (Formerly Dare2Compete) is looking for Frontend and Full Stack Developers. Developer responsibilities include building our application from concept to completion from the bottom up, fashioning everything from the home page to site layout and function.

Requirements:-

• Write well-designed, testable, efficient code by using the best software development practices
• Integrate data from various back-end services and databases 
• Gather and refine specifications and requirements based on technical needs
• Be responsible for maintaining, expanding, and scaling our products
• Stay plugged into emerging technologies/industry trends and apply them into operations and activities
• End-to-end management and coding of all our products and services
• To make products modular, flexible, scalable and robust

Tech Skill:-

• Angular 10 or later
• PHP Laravel
• NodeJS
• MYSQL 8
• NoSQL DB
• Amazon AWS services – EC2, WAF, EBS, SNS, SES, Lambda, Fargate, etc.
• The whole ecosystem of AWS

Qualifications:-

• Freshers and Candidates with a maximum of 10 years of experience in the technologies that we work with
• Proven working experience in programming – Full Stack
• Top-notch programming and analytical skills
• Must know and have experience in AngularJS 2 onwards
• A solid understanding of how web applications work including security, session management, and best development practices
• Adequate knowledge of relational database systems, Object-Oriented Programming and web application development
• Ability to work and thrive in a fast-paced environment, learn rapidly and master diverse web technologies and techniques
• B.Tech in Computer Science or a related field or equivalent

Requirements:

• Minimum 3 years of experience in software development into MERN (React & Node.js ) technology.
• Bachelor degree in Computer Science or IT.
• Must have Hands-On coding expertise of React.js, Reactstrap, NodeJS, MongoDB and ExpressJS.
• Configuring and managing deployment on AWS (EC2 IAM, S3).
• Knowledge of developing REST API using Express framework and front end integration with PUG engine.
• Experience with popular JS libraries like Ember, Babel, Typescript, Webpack, Socket etc.
• Exposure to scm tools like git, Git Hub, CI/CD methods, code coverage tools like SonarQube, etc.
• Good understanding of the object-oriented design and programming concepts, core JavaScript concepts like scope/closures, the event loop and asynchronous callbacks, promises, API formation, POSTMAN API etc.

Java Developers [I+S/E2-MM2]

Java Full Stack Developer

We are looking for a skilled Full Stack Developer who is passionate about building high-quality software applications. The ideal candidate will have expertise in Java frameworks and extensions, persistence frameworks, servers, platforms, clouds, databases, data storage, and QA tools. The candidate should also have experience working with Angular, React, or Vue.

As a Full Stack Developer, you will be responsible for developing and maintaining software applications for our clients. You will work closely with a team of developers and project managers to deliver high-quality software products. You should be comfortable working in a fast-paced environment and be able to adapt to changing priorities.

Mandatory Skill Sets:

Java frameworks and extensions: You should be proficient in building enterprise-grade applications using Java 8+ and Spring Boot.

Persistence Frameworks: You should have experience working with Hibernate and/or JPA. You should be able to design and develop efficient data models, and perform CRUD operations using Hibernate and/or JPA.

 Servers: You should be familiar with Apache Tomcat and be able to deploy applications on Tomcat servers.

Platforms: You should have experience working with Java EE and Jakarta 2EE platforms.

Clouds: You should have experience working with AWS, and be familiar with AWS services such as EC2, S3, and RDS.

Databases / Data Storage: You should have experience working with MYSQL and Oracle databases

QA Tools: You should be proficient in JUnit5 and Postman. You should be able to write and execute unit tests, integration tests, and end-to-end tests using these tools.

Web Services: You should have experience working with RESTful web services.

API Security: You should be familiar with OAuth2, JWT, Auth0, or any other API security frameworks.

 Angular/React/Vue: You should have experience working with at least one of these frontend frameworks, HTML, CSS, and JavaScript.

If you are passionate about building high-quality software applications and have the required skill sets, we encourage you to apply. We offer competitive salaries and benefits, and a challenging work environment where you can learn and grow.

As Lead Software Engineer, we are looking for a person who loves to engineer design specs into usable interactions. Responsibilities will include translation of the UI/UX design wireframes to actual code that will produce visual elements of the application. You will work with the development team to understand and bridge the gap between graphical design and technical implementation, taking an active role and defining how the application looks as well as how it works.

This is an innovative role and requires a candidate who is extremely motivated, dedicated, and passionate about development. It's a high growth opportunity to be part of a fast-growing startup!

Key Responsibilities :

- Build scalable web applications using MERN Stack
- Convert visual designs to UI elements with an acute eye for detail and design fidelity
- Make web applications responsive and cross-browser compatible
- Optimize application performance and reduce page loading speed
- Collaborate with various teams to develop new features
- Ability to work under pressure and deliver projects with tight deadlines
- Implement unit tests and integration tests to drive development efficiency.

Requirements :

- 3 years of work experience comprising of Backend(preferably NodeJS), Frontend (React/Angular) and Software Design/Architecture
- 2+ years experience building Production grade applications on ReactJS or Angular - STRICT REQUIREMENT
- Expertise in building UI components in a reusable manner.
- Knowledge of messaging services like Apache Kafka, RabbitMQ
- Experience in integrating REST APIs and developing data processing pipelines
- Experience in distributed web services development and chaining
- Understanding of cloud services like AWS and GCP
- Experience with DevOps technologies such as Docker, Kubernetes, Jenkins, CI/CD, etc
- Experience in working with Mapping Library like Google Maps, Mapbox or Leaflet is a plus.

Salary - 4-6.5 lpa