i2b Technologies Pvt Ltd

SDET — Software Development Engineer in Test

Mobile & Real-Time Systems | 3–5 Years | Hyderabad / Remote

We're hiring an SDET who thinks in test strategies, not just test cases. You'll own quality across mobile apps that handle live streaming, real-time chat, and high-concurrency interactive systems. You won't just find bugs — you'll design the systems that prevent them from reaching production.

WHAT YOU'LL DO

→ Own test strategy and automation across functional, integration, regression, and performance layers

→ Build scalable automation frameworks from scratch — not maintain someone else's

→ Test real-time data flows — WebSocket message ordering, reconnection logic, latency under load

→ Design and execute API contract tests; catch breaking changes before they hit staging

→ Run performance and load tests simulating thousands of concurrent users on live streams

→ Test edge cases — poor network, offline states, app backgrounding, memory pressure

→ Integrate test suites into CI/CD pipelines — every PR, every build

→ Analyse crash reports, ANRs, OOM events and build regression coverage around them

→ Participate in design reviews to ensure testability is built in from day one

SKILLS

★ Appium — iOS & Android mobile automation

★ JavaScript or Python — test scripting at depth

★ REST & WebSocket API testing

★ Performance testing — JMeter, k6, Gatling

★ CI/CD — GitHub Actions, Jenkins, or equivalent

★ Test framework design — POM, BDD, data-driven

★ Debugging tools — Charles Proxy, Proxyman, device logs

★ Mobile profiling — memory, CPU, FPS, battery

★ Test management — TestRail, Zephyr, or Jira Xray

★ Defect lifecycle & root cause analysis

★ Agile / shift-left testing mindset

★ Strong analytical & documentation skills

GOOD TO HAVE

◆ Push notification testing — FCM / APNs

◆ Cloud device farms — BrowserStack, Sauce Labs

◆ Monitoring integration — Sentry, Crashlytics, Datadog

◆ Chaos / fault-injection testing

◆ Docker / containerised test environments

◆ TypeScript proficiency

YOU'RE EXACTLY WHO WE WANT IF YOU'VE

✓ Built an automation framework end-to-end — architecture, not just scripts

✓ Tested a live product used by real users at meaningful scale (chat, streaming, gaming)

✓ Simulated real-world chaos — flaky networks, reconnects, device interruptions

✓ Caught a critical production bug through automation before any user reported it

✓ Worked with developers on testability during API or feature design — not after

✓ Reduced release cycle time through better automation coverage and CI integration

Responsibilities

• Define and maintain EDI communications & design, ensuring the architecture supports global scalability and high availability across all business units.
• Lead the end-to-end design and deployment of complex EDI integrations using Oracle EDI modules, Oracle Integration Cloud (OIC), and Cleo Integration Cloud (CIC).
• Manage and optimize communication protocols (AS2, SFTP, HTTPS, API) and oversee the onboarding of new trading partners (customers and suppliers).
• Collaborate with IT developers and ERP specialists to integrate EDI workflows with ERPs like Oracle, ensuring data integrity across the transactions.
• Oversee the creation and maintenance of complex EDI maps (X12, EDIFACT) and translation rules to meet diverse partner requirements.
• Conduct thorough analysis of existing EDI processes to identify latencies or manual touchpoints, implementing automated solutions to improve operational efficiency.
• Lead the development of comprehensive test plans and coordinate User Acceptance Testing (UAT) for all new partner integrations or system upgrades.
• Provide Tier 3 technical support for EDI failures and mentor junior analysts/developers on EDI best practices and standards.

Personal Characteristics

• Exceptional ability to troubleshoot complex integration failures and design long-term architectural fixes rather than temporary patches.
• Advanced ability to translate technical EDI concepts into business language for stakeholders and executives.
• Proven track record of building trusting relationships with cross-functional teams, including Supply Chain, Finance, and IT.
• Ability to work with a high degree of accuracy, specifically regarding data mapping and compliance with global messaging standards.
• Self-motivated individual who thrives on autonomy and takes ownership of the entire B2B integration lifecycle.
• Comfortable working in a fast-paced EMS environment with shifting priorities and diverse customer requirements.

Qualifications & Skills

• Bachelor’s degree in Computer Science, Information Technology, Engineering, or equivalent experience in related field.
• 5+ years of experience in EDI architecture and development.
• Extensive hands-on experience with Oracle EDI/E-Business Suite and Cleo (CIC) is preferred.
• Deep knowledge of EDI standards (ANSI X12, EDIFACT) and communication protocols (AS2, FTP/S, API).
• Prior experience in the EMS (Electronics Manufacturing Services) or High-Tech Manufacturing industry is a must.
• Strong grasp of supply chain business processes, including Demand Planning, Manufacturing Operations, and Intercompany transactions.
• Familiarity with SQL, XML, and JSON; experience with ERP-integrated EDI is essential.
• Understanding of secure data transmission standards and B2B security best practices.

We value diversity in our workplace and we are committed to Employment Equity. We welcome & encourage applications from all qualified candidates.

Job Description: Senior Node.js Backend Developer

Role Overview :

We are seeking an exceptionally skilled and results-oriented Senior Node.js Backend Developer to architect and develop the core platform for our next-generation, mobile-centric platform. This role demands deep expertise in building highly concurrent, asynchronous, and distributed systems designed for massive scalability and ultra-low latency. You will be instrumental in delivering a system that can reliably support millions of users and high-velocity data flow, designed for a cloud-agnostic architecture from inception.

Key Responsibilities

● High-Concurrency Development: Design and implement highly performant and resilient backend services using Node.js (TypeScript/JavaScript), leveraging its asynchronous nature to manage persistent connections and high throughput efficiently.

● Microservices & APIs: Lead the development and maintenance of microservices, focusing on defining and implementing secure, robust, and highly optimized APIs (REST/gRPC) for mobile clients.

● Real-Time Data Flow: Architect and implement real-time, bi-directional data synchronization mechanisms (e.g., WebSockets, dedicated streaming protocols) necessary for instantaneous information delivery across the platform.

● Data Modeling & Persistence: Collaborate on and execute data modeling strategies, integrating with high-volume, low-latency databases (e.g., Cassandra, ScyllaDB, Aerospike) optimized for extremely fast reads and writes.

● Optimization & Tuning: Proactively identify and resolve performance bottlenecks within the Node.js runtime, event loop, and service interactions to ensure exceptional user experience under heavy load.

● Ability to perform Research / POCs & choose the suitable technology.

Required Technical Expertise (3-6 Years Experience Focus)

● Core Node.js & TypeScript: 3-6 years of hands-on, production experience in Node.js, with expertise in modern TypeScript/ES6+ development for large-scale applications.

● Asynchronous Programming Mastery: Deep understanding and practical experience with the Node.js event loop, non-blocking I/O, and advanced asynchronous patterns (Promises, async/await) to maintain high concurrency.

● Distributed Systems & Microservices: Proven experience architecting and operating services within a distributed system/microservices environment, including deployment using Docker and Kubernetes.

● Messaging & Real-Time: Expert knowledge of and implementation experience with message queuing systems like Apache Kafka for event sourcing, and protocols (e.g., WebSockets) for real-time data sync.

● Database Expertise: Deep practical experience working with, tuning, and optimizing at least one NoSQL distributed database (e.g., Cassandra, ScyllaDB, or Aerospike) for extreme performance and horizontal scalability.

● Caching & Statelessness: Expertise in implementing various caching strategies using tools like Redis or Memcached to ensure service statelessness and reduce database load.

Scalability & Performance Expectations

● High Throughput: Services must be capable of processing extremely high volumes of data transactions and managing millions of concurrent connections without degradation in service quality.

● Latency Goal: Achieve and maintain a P95 latency of less than 100 milliseconds for all core, user-facing data operations.

● Cloud-Agnostic Design: Experience designing and implementing services that are abstracted from specific cloud provider dependencies, demonstrating familiarity with cloud-agnostic practices for deployment across AWS, GCP, or Azure.

● Observability: Strong experience leveraging modern observability tools (e.g., Prometheus, Grafana, Jaeger) to monitor, trace, and debug complex, asynchronous, and distributed Node.js applications in production.

Startup Mindset & Delivery Goals

● Extreme Ownership: Demonstrate the ability to take full technical ownership of complex modules, driving them from architectural concept through to stable, optimized production deployment.

● Agility: Possess the adaptability and technical versatility required to thrive in a fast-moving startup environment with continuous deployment and rapid feature iteration.