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
  

About the Role

We are looking for a highly skilled and experienced Junior React Native Developer to join our team and take the lead on developing our cross-platform mobile application. You’ll play a critical role in building, launching, and scaling a high-performance mobile app that runs seamlessly on both iOS and Android platforms from a single codebase.

If you’re passionate about mobile technologies, have a strong command of React Native, and are excited about creating a high-quality product from the ground up, we’d love to hear from you.Responsibilities

• Lead the end-to-end development of a cross-platform mobile application using React Native.
• Collaborate with product managers, designers, and backend engineers to deliver high-quality user experiences.
• Build reusable components and front-end libraries for future use.
• Optimize app performance for speed and scalability across devices and OS versions.
• Ensure the app complies with design standards and platform-specific guidelines (Apple App Store & Google Play).
• Set up CI/CD pipelines for automated builds, testing, and deployment (e.g., using Fastlane, EAS, or similar).
• Integrate RESTful APIs and third-party services.
• Handle app store submissions and updates.
• Mentor junior developers and enforce best practices in mobile development.

Requirements

Must-Have:

• 1+ years of experience in mobile application development.
• 1+ years of hands-on experience with React Native.
• Strong understanding of JavaScript (ES6+), TypeScript, and React architecture.
• Deep knowledge of iOS and Android mobile app development lifecycle.
• Experience with mobile UI/UX best practices and performance optimization.
• Familiarity with native build tools (Xcode, Android Studio).
• Experience integrating REST APIs and handling network latency issues.
• Proficient with Git, GitHub/GitLab, and agile development practices.
• Experience with push notifications, in-app purchases, deep linking, and analytics SDKs.

Preferred:

• Experience with Expo or EAS for managed workflows.
• Familiarity with mobile CI/CD pipelines (Fastlane, Bitrise, etc.).
• Experience with native modules (Objective-C/Swift and Java/Kotlin) as needed.
• Knowledge of automated testing frameworks (Jest, Detox).
• Published apps in both the App Store and Google Play.
• Prior experience in startups or high-growth environments.

What We Offer

• Opportunity to lead and build a product from the ground up.
• Work with a dynamic and talented team in a fast-paced environment.
• Flexible working hours and remote-first culture.
• Competitive salary and equity options (if applicable).
• Learning and development budget.

About HighLevel:

HighLevel is a cloud-based, all-in-one white-label marketing and sales platform that empowers marketing agencies, entrepreneurs, and businesses to elevate their digital presence and drive growth. With a focus on streamlining marketing efforts and providing comprehensive solutions, HighLevel helps businesses of all sizes achieve their marketing goals. We currently have ~1200 employees across 15 countries, working remotely as well as in our headquarters, which is located in Dallas, Texas. Our goal as an employer is to maintain a strong company culture, foster creativity and collaboration, and encourage a healthy work-life balance for our employees wherever they call home.

Our Website - https://www.gohighlevel.com/

YouTube Channel -https://www.youtube.com/channel/UCXFiV4qDX5ipE-DQcsm1j4g

Blog Post - https://blog.gohighlevel.com/general-atlantic-joins-highlevel/

Our Customers:

HighLevel serves a diverse customer base, including over 60K agencies & entrepreneurs and 500K businesses globally. Our customers range from small and medium-sized businesses to enterprises, spanning various industries and sectors.

Scale at HighLevel:

We work at scale; our infrastructure handles around 30 Billion+ API hits & 2 Billion+ message events monthly and over 25M views of customer pages daily. We also handle over 200 Terabytes of data across 5 Databases.

About the Role:

Seeking a seasoned Lead Engineer with hands-on experience in Node.js and Vue.js (or React/Angular). You will be instrumental in building cutting-edge, AI-powered products along with mentoring or leading a team of engineers.

Team-Specific Focus Areas:

Conversations AI:

-Develop AI solutions for appointment booking, forms filling, sales, and intent recognition

-Ensure seamless integration and interaction with users through natural language processing and understanding

Workflows AI:

-Create and optimize AI-powered workflows to automate and streamline business processes

Voice AI:

-Focus on VOIP technology with an emphasis on low latency and high-quality voice interactions

-Fine-tune voice models for clarity, accuracy, and naturalness in various applications

Support AI:

-Integrate AI solutions with FreshDesk and ClickUp to enhance customer support and ticketing systems

-Develop tools for automated response generation, issue resolution, and workflow management

Platform AI:

-Oversee AI training, billing, content generation, funnels, image processing, and model evaluations

-Ensure scalable and efficient AI models that meet diverse platform needs and user demands

Responsibilities:

• REST APIs - Understanding REST philosophy. Writing secure, reusable, testable, and efficient APIs.
• Database - Designing collection schemas, and writing efficient queries
• Frontend - Developing user-facing features and integration with REST APIs
• UI/UX - Being consistent with the design principles and reusing components wherever possible
• Communication - With other team members, product team, and support team

Requirements:

• Expertise with large scale Conversation Agents along with Response Evaluations
• Good hands-on experience with Node.Js and Vue.js (or React/Angular)
• Experience of working with production-grade applications which a decent usage
• Bachelor's degree or equivalent experience in Engineering or related field of study
• 5+ years of engineering experience
• Expertise with MongoDB
• Proficient understanding of code versioning tools, such as Git
• Strong communication and problem-solving skills

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.

Full Stack Engineer Role

🏘 Why Propacity?

In a country like India where every Indian aspires to have a home which provides both emotional & financial stability. Typically, real estate brokers are responsible for closing transaction for buyers, and sellers. In fact, the data suggests > 90% transactions occur via 1.5 million real estate brokers.

Unfortunately, real estate brokers are having a painful time managing their business on their own. This is leading to awful customer experience for buyers, and sellers.

Propacity is creating a platform which empowers real estate brokers to create trustworthy experience for Indians customers looking to invest their life savings.

🏚 What does Propacity Platform do?

• Solve for lead generation, lead management, market insights, growth opportunities, and more
  
  
• The platform makes the broker more efficient, more data informed, increases his income, and enables him to engage better with customer.

💛  Team Propacity

Started in 2020, we are of one of India's fastest-growing PropTech startup. We are a team of startup heroes, technology enthusiasts, product makers and business operators who want to create trustworthy real estate experience for Indians investing their lifesavings in the real estate.

Currently, working with over 200+ real estate brokers in 20+ Indian Cities.

Our team is super passionate, customer obsessed and extremely supportive of each other.

🚀 Why join us?

As a Full Stack Founding Engineer, you will be responsible for the technical implementation of Propacity Platform with other A+ Engineers

We are redefining the real estate industry. It will be hard and there are a ton of challenges facing us. However, with the right mindset, strategy, and the world-class team that we’re building, we know we can push the world forward, and build the biggest business imaginable.

 👩🏽‍💻👨‍💻 YOUR ROLE 

• Develop code for the Propacity Platform
• Collaborate with the product & design team for making decisions based on your codebase expertise
• Own the development process from the architecture stage till the product is shipped
• Promote code quality, new technologies, and architectural design within the company
• Work and develop a team of engineers who can ship fast
• Have fun collaborating with your team, and communicate as much as you can

✅  Should Have Expertise:

• Experience: You have 3+ years of professional product development experience with MERN Stack :  building server applications in Node.js along with JS Frameworks, system design.

• Server expertise: Good experience with deploying applications on AWS & devops

• Databases: You have in-depth knowledge of RDMS as well as no-sql databases and are capable of designing scalable database models based on the product and security requirements. You have also experience with in-memory databases such as Redis and queuing frameworks for running tasks asynchronously.

• Front end expertise: Good understanding of React.js, frameworks, and libraries

• CS Fundamentals: You possess strong computer science fundamentals: data structures, algorithms, API’s, micro-services, distributed systems, and information retrieval.

• 3rd Party API integrations: API Integrations for fb, Instagram, google ads & more into our product

• Github: You have some JS projects/products on GitHub Repository that are worthy of public view.

• Product focused: You take pride in building innovative and shipping fast

• Problem solver: You excel at understanding and solving complex problems. You have great attention to detail.

• Quality communicator: You can break down tricky topics in writing and work with the team together

• Feedback: You are humble, kind, and are open to product feedback

• Location: Remote/New Delhi

✅  Good to Have:

• Automated Tests: Automated Tests to test the Restful API’s

• Design Basics: Basic understanding of the Figma Tool

• Mobile Applications: Basic Understanding of app. development via React Native 

 🤙  OUR HIRING PROCESS

Yes, we make sure every candidate who joins Propacity brings in the right DNA, has growth mindset, maximises peer-to-peer learning, ownership oriented and enjoys building tech products. 

Step 1: You apply for the job at Propacity

Step 2: Short Intro Call with the Founder(s)

Step 3: Technical Interview Round(s)

Step 4: Evaluation of your Technical Expertise

Step 5: Founder Round for DNA Check

Step 6: Job offer rollout

Step 7: Join the Team Propacity & start building

🎁  PROPACITY BENEFITS 

🕰 Generous Office Timings 

• Flexible working hours
• Flexible Leave Policy

✍️ Investing in Your Growth 

• Mentoring by top industry talent
• Working Directly with the Founders
• Shared Learning with Super Smart Team Members
• Ownership to build products and teams

💰 Financial Success 

• Company ESOPS
• Expected CTC : 18 - 25 Lakhs per annum

Requirements:

• Bachelor's or master’s degree in computer science or equivalent work experience.
• A solid understanding of the full web technology stack and experience in developing web applications
• Strong experience with React JS framework for building visually appealing interfaces and back end frameworks like Django
• Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery)
• Good knowledge of object-oriented programming and data structures in Python
• Experience with NoSQL databases, web server technologies, designing, and developing APIs.
• Strong knowledge and work experience in AWS cloud services
• Proficiency with Git, CI/CD pipelines.
• Knowledge in Agile/Scrum processes.
• Experience in Docker container usage.

Roles and responsibilities:

• Develop sophisticated web applications for drone control, data management, security, and data protection.
• Build scalable features using advanced framework concepts such as Microservices, Queues, Jobs, Events, Task Scheduling, etc.
• Integrate with Third-Party APIs/services
• Use theoretical knowledge and/or work experience to find innovative solutions to the problems at hand.
• Collaborate with team members to ideate solutions.
• Troubleshoot, debug, and upgrade existing software.
• Passionate to learn and adapt in a start-up environment.

Perks:

• Hands-on experience with state of the art facilities we use for robot development.
• Opportunity to work with industry experts and researchers in the field of AI, Computer Vision, and Machine Learning.
• Competitive salary.
• Stock options.
• Opportunity to be an early part of the team and grow with the startup.
• Freedom of working schedule.
• Opportunity to kickstart and lead your own projects.

We are looking for a strong Java Developer with experience in fintech domain enterprise-grade world class data aggregation, reconciliation, and reporting product. This is an opportunity to discover a large range of business cases as well as design, develop and implement solutions that results solving complex problems. As a Java Sr developer you will design and develop technology-based business solutions that caters to current and future Product requirements.

Must have:
• 4-8 years of relevant experience in designing & developing and architecting systems/software for large business environments (Java, J2EE).
• Strong design and coding skills in Enterprise Java, Hibernate, Spring, Spring Boot, REST web services, JMS (ActiveMQ), XML, JSON.
• Must have good experience in Unix/Oracle/SQL.
• Experience in any communication framework (MQ) is an added advantage.
• Experience in Agile Development, Scrum, and Iterative approaches
• Participate in requirement gathering JAD sessions and support documentation
• Work with Product Management to resolve or raise queries and get query resolution on areas which are unclear, ambiguous and which need more information
• Develop high quality code as per standards, tiered coding, business layer coding, interface development and service development as needed
• Ability to solve complex software system issues.

Experience in One of below will be added advantage-
• Activiti BPM
• DROOLS Rules Engine
• Integrations with authentication protocols and Frameworks oAuth/ SAML/ LDAP/ Kerberos
• Experience with multiple integration technologies / frameworks.

EZOPS offers clients an integrated data management platform to resolve data quality, automation, and reporting challenges across the data lifecycle. The platform empowers users to transform data, setup and configure reconciliation rules, gain insights into root cause of breaks using machine learning algorithms, seamlessly setup rules via a UI for automated break remediation using BOTS and to create reports and dashboards with low I.T involvement. EZOPS has 5 global offices (San Francisco, NYC, NJ, Dublin, and Noida) and its clients include some of the largest global financial institutions.

Job Description –

• Full stack developer position.
• Should have total of 5-7 years of experience.
• Should have min. of 2 years of experience in developing Enterprise apps on React.js and 2 years on Django apps.
• Very good in Data structure, logical reasoning, and algorithms.
• Experience with cloud providers like AWS or Azure or GCP is also required.
• Good Understanding of Design and Integration patterns.
• Ability to work independently and with lots of ownership.
• Ability to learn and apply newer technologies quickly.
• Good to have knowledge in building progressive web apps.

Role Description

• You will be full stack senior developer.
• Handle team of junior backend and frontend developer.
• You can and want to write code end-to-end.
• You would enjoy designing a system for speed and scale.
• Developing product using Reactjs for front end and Python for back end.
• We want you to debate on the pros and cons of different architectures and tech stack choices and be real contributing members.
• We want people who can and want to learn new stuff in real-time while on the job.

Skills - JavaScript, React.js, HTML, CSS, SQL with MySQL / PostgreSQL, Python, Django, AWS or Azure or GCP