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
  

• Understand fundamental design principles and best practices for developing backend servers and web applications  Gather requirements, scope functionality, estimate and translate those requirements into solutions.  
• Implement and integrate software features as per requirements. 
•  Deliver across the entire app life cycle.
•   Work in a product creation project and/or technology project with implementation or integration responsibilities, Improve an existing code base, if required, and ability to read source code to understand data flow and origin
• Design effective data storage for the task at hand and know how to optimize query performance along the way.  
• Follow an agile methodology of development and delivery  
• Strictly adhere to coding standards and internal practices; must be able to conduct review code  Mentor and possibly lead junior developers  
• Contribute towards innovation  Performance optimization of apps 
•  Explain technologies and solutions to technical and non-technical stakeholders  
• Diagnose bugs and other issues in products  
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency

Must have / Good to have:

• 4+ years experience with Core Python development  Design and implementation of high-availability, and performant applications on Unix environment  
• Good with multithreading and data structures  
• Develop back-end components to improve responsiveness and overall performance  
• Familiarity with database design, integration wiht applications and python packaging.  Familiarity with front-end technologies (like JavaScript and HTML5), REST API, security considerations  
• Familiarity with functional testing and deployment automation frameworks  
• Experience in development for 3-4 production ready application using Python as programming language  
• Experience in writing unit test cases including positive and negative test cases 
•  Experience of CI/CD pipeline code deployment (Git, SVN, Jenkins or Teamcity) 
•  Experience with Agile and DevOps methodology 
•  Very good problem-solving skills  
• Experience with Web technologies is a plus  
• Experience with ELK stack is a plus.

Experience: 7+ Years

Job Location: Remote/ hybrid

No. of Position: Multiple

Qualifications: B. Tech / M. Tech / MCA

Work Timings: 1:30 PM IST to 10:30 PM IST

Functional Area: Software Development

We are looking for a highly motivated and talented Software (Python) Developer to join our team and help build the components of the solutions. The ideal candidate is a versatile self-starter with a background in Python development. The Software Engineers responsibilities include designing and developing software for an large scale application that is hosted in AWS/Azure cloud platform.

Key Responsibilities

• Develop high-quality software that is performant, scalable, reusable and extensible in python.
• Responsible for over-all software development life cycle from design to delivery.
• Adoption and Evolution of the software engineering practices and tools within the organization.
• You will work closely with product management and other development teams to create responsive, and interactive interfaces.
• You will work closely with our solution architects, analysts and design team members to develop specifications.
• You must be able to design solution based on requirement and acceptance criteria provided in the story.
• Collaborate with other technology and business teams within the organization to provide efficient robust solutions to the problems.
• You will be required to demonstrate problem solving & debugging skills.

• Make improvements to our microservices, Cloud APIs and work on developing new capabilities in existing code base.
• Enhance existing capabilities in the application to meet the customer needs.
• Need to work in collaboration with other team members and management team.
• Uses data visualization techniques to provide insights on large data sets and input to finish Dashboards.
• Builds and maintains datasets to help subject matter expert.
• Must be able to work independently with some oversight and function effectively as part of a team in a joint working environment.
• Ability to prioritize work, meet deadlines, achieve goals, and work under pressure in a dynamic and complex environment

Skills, Knowledge and Experience

• Must have 4+ years of experience in python application development
• Must have 1+ years of experience with Django framework.
• Deep understanding of object oriented and functional paradigms.
• Solid background in RESTful Web Services.
• Excellent verbal, written, and interpersonal communication skills
• Knowledge of Relational database (MySQL, SQL Server, Oracle) and NoSQL is required.
• Knowledge of reactJS to be a Full-stack developer is a plus.
• Experience in visualization tools such as Tableau and Power BI is a plus.

Requirements:

- Knowledge of digital ad tech ecosystem

- Minimum 3 years of experience working in a professional environment on full-stack development

- Proven expertise in creating and developing scalable enterprise or B2C web applications

- Experience in REST API development and MVC/MVVM development methodologies

- Deep understanding of the underlying architecture of web servers, load balancing, and browser nuances. Basically, a solid understanding of fundamentals - including execution models, asynchronous programming, object-oriented concepts, relational concepts, etc.

- Proficiency in one or more of Node.js/MEAN stack, Python, Java or other frameworks and willing to be flexible on stack as per the requirement of the project. Most of our current development is on the MEAN stack - expertise in the stack will be a definite plus

- Proficiency in one or more of databases such as MySQL, MongoDB, Cassandra or other equivalent databases and willing to be flexible as per the requirement of the project. Most of our current development is on MongoDB and MySQL - expertise in these will be a definite plus

- Good understanding of developer tools and devops such as Git, Ansible, cloud platforms such as AWS, Docker, etc.