

Software Engineer – C++ (3-6 years of experience)
1. Telecom/Volte LTE 2g 3g Preferred
2. Programming knowledge of multi-threading, sockets, IPCs.
3. Well versed with std and boost libraries.
4. Working knowledge of GNU compilers, optimization techniques on Unix/Linux based systems.
5. Proficient in debugging tools like GDB/Valgrind and profiling tools like oprofile.
6. Knowledge of Diameter (AAA) Stack
- Development experience of communication protocol stacks
- Hands on experience in multi-threaded design techniques and implementation
- Good hands-on experience on data structures and algorithms

About Jio
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Software Engineer - C++ Developer.
Experience: 1-3 years
Requirements:-
- A minimum of 2 years' experience as a C++ software developer. • Linux Operating Systems(Basic idea about structure, file types and memory) • Socket Programming • Version control tools like GIT, SVN(basic operations) • Current knowledge of C++ standards and specifications. • Proficiency in C++ compliant languages such as C, Java, and Python. • Good Understanding for backend concepts like OOPS, Algorithm, Data structure, Design patterns |
Who You Are:
- You’ve built scalable, production-ready APIs in fast-paced environments, and are comfortable with the challenges that come with a growing startup.
- You understand event-driven architectures and have hands-on experience building real-time applications.
- You are fully capable of taking ownership of backend systems, from designing the database schema to writing efficient, maintainable code.
- You think beyond the code: optimizing performance, scalability, and security are as important as building new features.
- You’re comfortable troubleshooting complex issues, whether that’s API bottlenecks, database performance, or production issues.
Responsibilities:
- Design, implement, and manage a NestJS backend with a modular, scalable architecture that can easily handle real-time events and communication.
- Develop and maintain WebSocket services for real-time event-driven updates and ensure seamless communication across the system.
- Integrate RabbitMQ for reliable internal messaging, handling queues and ensuring event-driven workflows are efficient and fault-tolerant.
- Implement database management strategies using MongoDB, Redis, and Elasticsearch, ensuring efficient data handling, indexing, and optimization.
- Integrate with external APIs (JSON-RPC, XML-RPC, REST) to enhance system capabilities.
- Ensure high performance of the system by optimizing database queries, implementing caching strategies using Redis, and ensuring optimal indexing and data flow.
- Implement role-based authentication and authorization mechanisms using JWT, OAuth, and RBAC patterns within NestJS.
- Follow security best practices to ensure sensitive data is protected, credentials are stored securely, and the system is resilient to common vulnerabilities.
- Work collaboratively with cross-functional teams to ensure seamless integration between different services and technologies.
Must-Have Skills:
- Strong proficiency in Node.js and NestJS with TypeScript.
- Solid experience with MongoDB, Redis, and Elasticsearch for data storage and real-time data handling.
- In-depth knowledge of WebSockets and Socket.IO in NestJS Gateways, enabling real-time communication and updates.
- Experience with RabbitMQ for message queuing and asynchronous task handling.
- Strong understanding of authentication & authorization systems using JWT, OAuth, and RBAC (Role-Based Access Control).
- Expertise in optimizing APIs, including techniques for caching, improving database performance, and reducing latency.
- Familiar with API security best practices, including secure storage of credentials, encryption, and safeguarding sensitive data.
Key Skills:
- TypeScript, NestJS, WebSockets, Socket.io
- Redis, MongoDB, Elasticsearch, RabbitMQ
- API Optimization, JWT, OAuth, RBAC
- Real-time communication, Event-driven architecture

- Develop new features understanding current architecture of system
- Responsible to design , develop, test, integrate and support product life cycle.
- Developing existing systems by analyzing and identifying areas for improvements
- Creating Design/Architecture documents, technical specifications, and test cases in line with Quality systems
- Maintaining systems by identifying and correcting software defectsDeveloping / Influencing Requirements.
- Willing and flexible to work on C++
- Consulting internal / external stakeholders concerning maintenance and performance of software systems; implementing software solutions
- "Strong Object Orientated C++


Role- Software Development Engineer-2
As a Software Development Engineer at Amazon, you have industry-leading technical abilities and demonstrate breadth and depth of knowledge. You build software to deliver business impact, making smart technology choices. You work in a team and drive things forward.
Top Skills
- You write high quality, maintainable, and robust code, often in Java or C++ or C#
- You recognize and adopt best practices in software engineering: design, testing, version control, documentation, build, deployment, and operations.
- You have experience building scalable software systems that are high-performance, highly-available, highly transactional, low latency and massively distributed.
- Roles & Responsibilities
- You solve problems at their root, stepping back to understand the broader context.
- You develop pragmatic solutions and build flexible systems that balance engineering complexity and timely delivery, creating business impact.
- You understand a broad range of data structures and algorithms and apply them to deliver high-performing applications.
- You recognize and use design patterns to solve business problems.
- You understand how operating systems work, perform and scale.
- You continually align your work with Amazon’s business objectives and seek to deliver business value.
- You collaborate to ensure that decisions are based on the merit of the proposal, not the proposer.
- You proactively support knowledge-sharing and build good working relationships within the team and with others in Amazon.
- You communicate clearly with your team and with other groups and listen effectively.
Skills & Experience
- Bachelors or Masters in Computer Science or relevant technical field.
- Experience in software development and full product life-cycle.
- Excellent programming skills in any object-oriented programming languages - preferably Java, C/C++/C#, Perl, Python, or Ruby.
- Strong knowledge of data structures, algorithms, and designing for performance, scalability, and availability.
- Proficiency in SQL and data modeling.
About Amazon.com
“Many of the problems we face have no textbook solution, and so we-happily-invent new ones.” – Jeff Bezos
Amazon.com – a place where builders can build. We hire the world's brightest minds and offer them an environment in which they can invent and innovate to improve the experience for our customers. A Fortune 100 company based in Seattle, Washington, Amazon is the global leader in e-commerce. Amazon offers everything from books and electronics to apparel and diamond jewelry. We operate sites in Australia, Brazil, Canada, China, France, Germany, India, Italy, Japan, Mexico, Netherlands, Spain, United Kingdom and United States, and maintain dozens of fulfillment centers around the world which encompass more than 26 million square feet.
Technological innovation drives the growth of Amazon, offering our customers more selection, convenient shopping, and low prices. Amazon Web Services provides developers and small to large businesses access to the horizontally scalable state of the art cloud infrastructure like S3, EC2, AMI, CloudFront and SimpleDB, that powers Amazon.com. Developers can build any type of business on Amazon Web Services and scale their application with growing business needs.
We want you to help share and shape our mission to be Earth's most customer-centric company. Amazon's evolution from Web site to e-commerce partner to development platform is driven by the spirit of invention that is part of our DNA. We do this every day by inventing elegant and simple solutions to complex technical and business problems. We're making history and the good news is that we've only just begun.


Role- Software Development Engineer-2
As a Software Development Engineer at Amazon, you have industry-leading technical abilities and demonstrate breadth and depth of knowledge. You build software to deliver business impact, making smart technology choices. You work in a team and drive things forward.
Top Skills
You write high quality, maintainable, and robust code, often in Java or C++ or C#
You recognize and adopt best practices in software engineering: design, testing, version control, documentation, build, deployment, and operations.
You have experience building scalable software systems that are high-performance, highly-available, highly transactional, low latency and massively distributed.
Roles & Responsibilities
You solve problems at their root, stepping back to understand the broader context.
You develop pragmatic solutions and build flexible systems that balance engineering complexity and timely delivery, creating business impact.
You understand a broad range of data structures and algorithms and apply them to deliver high-performing applications.
You recognize and use design patterns to solve business problems.
You understand how operating systems work, perform and scale.
You continually align your work with Amazon’s business objectives and seek to deliver business value.
You collaborate to ensure that decisions are based on the merit of the proposal, not the proposer.
You proactively support knowledge-sharing and build good working relationships within the team and with others in Amazon.
You communicate clearly with your team and with other groups and listen effectively.
Skills & Experience
Bachelors or Masters in Computer Science or relevant technical field.
Experience in software development and full product life-cycle.
Excellent programming skills in any object-oriented programming languages - preferably Java, C/C++/C#, Perl, Python, or Ruby.
Strong knowledge of data structures, algorithms, and designing for performance, scalability, and availability.
Proficiency in SQL and data modeling.


► Experience with C++ Windows and Linux operating system is mandatory.
► Sound knowledge of STLs, multithreading.
► Good understanding of OOP, design patterns and their application.
► Know-how on writing applications using the STL and/or BOOST.
► Knowledge of Agile development methodologies (e.g., XP, Scrum) and agile
engineering practices (e.g.TDD).
► Knowledge of Scripting languages such as shell / bash scripts are desired.
► Good knowledge of SVN or any Source control.
► Experienced with unit test frameworks.
► Computer Science (or related) degree.
Desired Skills
► Understanding of capturing functional requirements through use cases, user
stories and personas.
► Experience with test-driven development and test-driven design.
► Willingness to travel to Germany on a Short/Long term basis.


• Construct, develop, code, debug and maintain applications.
• Conform to define software design methodology for the development and implementation of Internet based application to support all aspects of web site functionalities.
• Perform code review and evaluation and determine recommendations for adaptation.
• Creation of Low-Level Design Document from Functional Specification and Technical design document.
• Generate application test data as necessary and validate any data conversion requirements for final implementation and production roll out.
• Being responsible for the analysis, design and development of certain key business application
Skills Required
I. Hands on experience on Dialogic/Telesoft SIGTRAN/TDM Stack and its configurations
II. Understanding and implementation of SS7 signalling servers
III. Good experience on SS7 protocols like MTP, SCCP, TCAP, ISUP, MAP layers and SMPP Protocol
IV. Must have Strong C and C++ programming skills on Linux developing multi- threaded applications.
V. Working knowledge of MySQL and other relational DB.
VI. Will add more advantage, if Working knowledge of any products like SMSC, MCA, USSD, OBD, IB
Education: B.Tech/BE or MCA (Computers) Regular






