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 VisibilityStack

VisibilityStack is a demand capture platform that helps businesses capture the demand for their solution, wherever their audience is searching, whether it's Google Search or AI-Search platforms or LLMs. The platform is powered by AI agents that identify what your audience is asking to look for a solution like yours, engineer content that answers those questions, and structure it so Google and AI systems can easily understand and recommend it in their responses. We also strengthen your online credibility through strategic backlinks and a strong social presence.

Everything is guided by real-time data and analytics. We system continues to analyze what's working, remove what does not, and keep your content working around the clock. The result is simple: the right people can find you, trust you, and reach out when they need what you offer.

The Role

We need a Senior Engineer who ships production code that scales. You'll be the technical anchor—building critical infrastructure, solving complex problems, and mentoring junior developers through code reviews and pair programming.

You'll shape our future in four key ways: writing the code that becomes our foundation, We’re looking for a Next.js Developer (Full-Stack) who can build and ship modern web products end-to-end. You’ll work across frontend, backend, and cloud (AWS) and collaborate closely with product and design to deliver fast, reliable experiences. A strong plus: you have a knack for AI-enabled products—you understand how to integrate LLM features thoughtfully, not just “add a chatbot”. This is about technical leadership through excellence.

What's in it for you:

1. Own mission-critical systems end-to-end — Your code directly generates customer revenue
2. Skip the politics, ship products — No layers of approval, no enterprise bureaucracy
3. Shape product direction — Your technical insights influence product strategy, not just implementation
4. Learn cutting-edge AI in production — Work with LLMs, vector databases, and agent orchestration at scale
5. Shape technical decisions and processes — Your input matters on how we build, not just what
6. Accelerated growth path — As we scale, you choose: become our technical lead or remain a deeply influential IC
7. Direct founder access — Collaborate on product vision, not just execute specs

Location: Janakpuri, Delhi (Hybrid - Maker's Schedule)

Our Work Philosophy:

We follow the Maker's Schedule, not the Manager's Schedule. This means uninterrupted blocks of deep work when you're building, and high-bandwidth collaboration when we're solving problems together.

In Practice:

1. In-office days: Whiteboard architecture sessions, rapid product iterations, deep dives into product strategy, complex debugging that needs three minds on one problem
2. Deep work days: Uninterrupted coding from wherever you work best—home, office, or that coffee shop with perfect noise levels
3. Balance by design: We optimize for both intense collaboration and deep focus

The best technical breakthroughs happen in two modes: intense in-person collaboration where ideas bounce rapidly, and deep solo work where complex problems get solved. We protect both.

Responsibilities

• Build and maintain production-grade web applications using Next.js (App Router preferred), React, and TypeScript.
• Develop full-stack features including APIs, server actions, background jobs, and integrations.
• Architect and implement scalable systems on AWS (deployment, monitoring, security, performance).
• Work with databases (SQL/NoSQL), caching layers, and queues where appropriate.
• Collaborate with product/design to turn requirements into clean UX and shippable increments.
• Own quality through testing, code reviews, CI/CD, observability, and performance tuning.
• Contribute to technical decisions, architecture, and best practices across the team.

What You’ll Bring (Required)

• Strong experience with Next.js + React + TypeScript in real production apps.
• Solid full-stack fundamentals:API design, authentication/authorization
• data modeling and query optimization
• debugging distributed systems issues
• Strong working knowledge of AWS, such as: Lambda, ECS/Fargate, EC2, S3, CloudFront
• RDS/DynamoDB, API Gateway
• IAM, secrets management, VPC basics
• CI/CD and infrastructure practices (Terraform/CDK is a plus)
• Good engineering habits: clean, maintainable code
• testing mindset
• performance and security awareness

AI Product “Knack” (Preferred / Nice to Have)

• Experience integrating AI features using APIs (e.g., OpenAI, Anthropic, Bedrock) including:prompt/version management
• structured outputs / tool calling
• retrieval (RAG) patterns and embeddings (basic familiarity is fine)
• Ability to design AI features with UX and safety in mind:latency expectations, fallbacks, streaming responses
• evaluation/quality loops, guardrails, and logging
• Curiosity about how AI changes workflows and product capabilities.

Tech Stack (Example)

• Next.js, React, TypeScript, Tailwind (or similar)
• Node.js, Postgres/MySQL (and/or DynamoDB)
• AWS (Lambda/ECS/S3/CloudFront/RDS), CI/CD (GitHub Actions, etc.)
• Observability: CloudWatch, Sentry, OpenTelemetry (any equivalent)

What Success Looks Like

• You can take a feature from idea → implementation → deployment with minimal oversight.
• You ship reliable releases and improve system performance and DX over time.
• You help the team build AI-powered features that users actually trust and use.

A tick against the following skill sets would surely strengthen the candidature

• Strong PHP, JS fundamentals
• PHP frameworks: PHP Laravel
• JS frameworks: Vue.JS
• RDBMS: MySQL, Mongo DB
• UI: HTML5, CSS3, Javascript, Jquery, XML, JSON, Ajax

• REST APIs
• Vue.JS Components (resusable components)
• 1-way / 2-way Binding 
• Custom Filters
• Service, Containers 
• PUT, POST, PATCH, Getter/Setter Methods 
• Repository Patterns 
• Laravel Facade 
• Blade Templates
• Laravel Events 
• Swagger 
• LINT 
• Unit Testing 

Principal Software Engineer

Opportunity in this role / Why should you join here?

You will enjoy working with us if you are looking to work in a stimulating, flexible, open environment. You will experience ownership and independence at the same time providing technical solutions that work.

You will be part of the madness and thrill of growing the business from scratch. You get to make decisions, fail fast and learn fast. You get to contribute, add value to the organization by thinking like an entrepreneur. You are supported by the best talent in the industry and work with creative teams. You are rewarded as you go on proving yourself.

Requirements:

• Bachelor's degree in Computer Engineering/Computer Science or related field
• At least 6+ years of experience with at least 4 years of software application design experience
• Strong analytical and problem solving skills
• A full stack generalist with experience in both front-end and back-end technologies
• Proven experience in high-level programming languages, like Java and Development of scalable Web Applications and Web Services
• Experience in JavaScript frameworks like Angular, React, NodeJS
• Passion for delivering products end-to-end, from ideation to implementation
• Proven experience building complex web applications and micro services
• Strong experience with Spring Boot stack (spring cloud, spring-data)
• Extensive experience in developing and consuming REST APIs
• Experience in PHP is a plus advantage

Responsibilities:

• Participate in design reviews and recommend improvements
• Provide technical guidance in software design and development activities
• Recommend new technologies to ensure quality and improve productivity
• Support in all phases of SDLC and ensure delivery of high-quality products
• Analyse business requirements and design/develop most effective technical solution
• Analyse and troubleshoot application issues in a timely fashion
• Work with other engineers in planning, prioritising and executing assigned tasks within deadlines

x• Work with QA team in preparing test cases and assist in automation

• Mentor other Engineers as and when required
• Assist in maintenances and upgrades of existing software applications
• Assist in risk assessment and mitigation activities.
• Assist in technical audits and make sure to implement audit recommendations.

Lightning Job by Cutshort ⚡

As part of this feature, you can expect status updates about your application and replies within 72 hours (once the screening questions are answered)

Samagra X - Tech Architect

As Samagra expands into Digital Public Goods (DPGs), we’re looking for a Tech Architect to help us shape how open-source products and platforms can transform governments' worldwide function. As Samagra, we pride ourselves on being thoughtful and intentional about the impact that can be created through well-built products and platforms.

In this role, you’ll work with a mission-driven team on some of the world’s most complex governance problems, where technology will play a pivotal role. You’ll design the architecture of platforms, answering

questions like-

• How to deliver quality advisory services to 100mn farmers nationwide?
• How can standardised assessment/practice tools be enabled to ensure FLN1 in children?
• How to build the capacity of paramedical staff in the country?
• How can govt administrators in any domain monitor the progress of flagship programs?
• How to build an open commerce network to connect farmers to the best service providers?

Working at Samagra, you’ll be challenged and rewarded with impact at scale. We value excellence, collaboration, empathy, and high ownership mindset. The most successful candidates will exhibit work that reflects these values. We want you to enable every team member to do their best work. We expect you to have a solid technical background, excellent communication skills, a flare for open-source products/platforms and a commitment to making everyone feel included.

Your Impact

In this role, you’ll have tremendous opportunities to learn, collaborate and impact millions of citizens in India and abroad by transforming how governments function. As a Tech Architect, you will:

• Take Ownership of technical vision for a given DPG - Define standards, drive technical architecture, strategy, and roadmap with the DPG working groups
• Collaborate with the DPG development partner to translate technical vision into a deliverable roadmap and product design. Pitch in with code, code reviews, architectural reviews and technical mentoring
• Work closely with the DPG development partner at various milestones of the product delivery to ensure a high-quality product is delivered and the product meets all the requirements, including debuggability,
• supportability, availability, scalability, cost-efficiency and performance.
• Continuously develop and improve the interface between technology and the DPG community. Ensure
• that overall technical practices are scalable, constantly evaluating tech stacks to cater to evolving business needs.
• Participate in building ecosystems around DPG with the community - build platforms, plugins & apps.
• Ensure all internal processes & external services comply with security, privacy policies and regulations.
• Stay on top of digital trends, principles and paradigms and be able to relate how these trends will affect the DPG community.
• Engage with internal and external collaborators, and maintain relationships/partnerships with internal team members and adopters to develop strategies, goals and objectives consistent with the DPG
• strategy.

Skills required

• Solid technical skills - Strong experience in having architected, built, operated and scaled distributed, large-scale, fault-tolerant systems; Worked on defining problem statements at all levels - RFCs to good first issues. Experience building and cultivating strong engineering practices; Experience with enterprise software development built and delivered on both on-premise and Cloud is preferred; Ability to diagnose technical problems, debug code, and automate tasks; Strong problem-solving and analytical skills.
• Leadership - Mix of intelligence, initiative, integrity, domain knowledge, verbal agility, and tactful stakeholder engagement, which allows you to rapidly earn the trust of astute teams and individuals across the company/community. You have a strong bias for action and being resourceful
• Collaboration and communication - with the geo-distributed teams in a fast-paced, entrepreneurial environment. Also, able to communicate across functional teams, keeping various engineering, product and business stakeholders informed.
• Planning & execution - Able to own and deliver large projects end to end, keeping track of timelines; keep track of (and context switch between) different threads and ensure that details don’t slip through the cracks

Qualifications

• B. tech/BE(CS/IT) & from Tier 1 or Tier 2 institutes of India/Abroad or equivalent; M. tech/Ph.D. preferred
• 8+ years of software development experience with 4+ years contributing to software architecture
• Experience in architecting, designing, developing, testing, and deploying large-scale, distributed systems.
• Experience in contributing and actively participating in multiple open source projects.
• Strong leadership skills and experience in working with a developer ecosystem.
• Excellent communication and collaboration skills to work effectively with internal teams and external stakeholders.
• Automate the development and test automation processes through CI/CD pipeline (Git, Jenkins, Artifactory, Docker containers).
• Experience in one of the following programming languages: Python/Javascript/Typescript/Java.
• Experience with RDBMS (Postgres, MariaDB) and any other large scale distributed database systems.
• Have expertise in one or more areas like building and scaling web apps, Machine Learning, UI Engineering, Information Visualization, etc.

About Samagra

Samagra is a mission-driven governance consulting firm. We co-work with the bureaucratic leadership across states and the Centre on long-term systemic transformation programmes cutting across domains. Since 2012, when Samagra was founded, we have worked with the Government of India and 7 state governments on 15+ large-scale systemic transformation projects in sectors like education, agriculture, skills, employment, and public service delivery. Over the last 5 years, we have also built strong GovTech and DataGov capabilities, now housed under the SamagraX umbrella. Our mission is to improve the quality of life of citizens through better governance. And this mission is

what fuels every goal we chase. Want to know more about Samagra?

Check out https://www.youtube.com/watch?v=GPcPdI2SHwU&;t=4s&ab_channel=Samagra-TransformingGovernance" target="_blank">this masterclass by our Founder and CEO, Gaurav Goel

Our Tech Leadership

Rahul Kulkarni - Chief Technologist

Nitin Kashyap - Senior Vice President - Product

Utkarsh Vijay - Vice President

Sukhpreet Sekhon - Vice President

Suresh Unnikrishnan - Vice President - Engineering

Product Examples

https://www.samagragovernance.in/blog/2023-03-31-leveraging-artificial-intelligence-to-deliver-advisory-to-farmers/" target="_blank">Ama KrushAI

https://www.youtube.com/watch?v=7CEo_R8XIhI" target="_blank">Nipun Lakshya App 

https://www.youtube.com/watch?v=kR8m4VS8kqA" target="_blank">e-SAMWAD

https://www.samagragovernance.in/blog/2023-01-16-leveraging-data-science-algorithms-to-improve-data-quality-in-government/" target="_blank">Krushak Odisha database - DataScience

https://www.samagragovernance.in/blog/2023-01-16-leveraging-data-science-algorithms-to-improve-data-quality-in-government/" target="_blank">Sunbird cQube

https://saral.sunbird.org/" target="_blank">Sunbird SARAL