11+ DIAMETER Jobs in India

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 Us:

Tradelab Technologies Pvt Ltd is not for those seeking comfort—we are for those hungry to make a mark in the trading and fintech industry. If you are looking for just another backend role, this isn’t it. We want risk-takers, relentless learners, and those who find joy in pushing their limits every day. If you thrive in high-stakes environments and have a deep passion for performance. driven backend systems, we want you.

What We Expect:

• We’re looking for a Backend Developer (Python) with a strong foundation in backend technologies and

a deep interest in scalable, low-latency systems.

• You should have 3–4 years of experience in Python-based development and be eager to solve complex

performance and scalability challenges in trading and fintech applications.

• You measure success by your own growth, not external validation.

• You thrive on challenges, not on perks or financial rewards.

• Taking calculated risks excites you—you’re here to build, break, and learn.

• You don’t clock in for a paycheck; you clock in to outperform yourself in a high-frequency trading

environment.

• You understand the stakes—milliseconds can make or break trades, and precision is everything.

What You Will Do:

• Develop and maintain scalable backend systems using Python.

• Design and implement REST APIs and socket-based communication.

• Optimize code for speed, performance, and reliability.

• Collaborate with frontend teams to integrate server-side logic.

• Work with RabbitMQ, Kafka, Redis, and Elasticsearch for robust backend design.

• Build fault-tolerant, multi-producer/consumer systems.

Must-Have Skills:

• 3–4 years of experience in Python and backend development.

• Strong understanding of REST APIs, sockets, and network protocols (TCP/UDP/HTTP).

• Experience with RabbitMQ/Kafka, SQL & NoSQL databases, Redis, and Elasticsearch.

• Bachelor’s degree in Computer Science or related field

About the Role

Own enhancements and maintenance of legacy OS-9 components while building new features on Linux (Yocto). You’ll work close to hardware, optimize performance, and modernize parts of the stack.

Key Responsibilities

• Design, develop, and debug C/C++ code for embedded targets (OS-9 and Linux).
• Maintain legacy OS-9 modules and plan/execute migrations to Linux/Yocto when needed.
• Configure Yocto/BitBake builds, BSPs, device trees, and cross-compilers.
• Integrate device drivers, board bring-up, and low-level comms (UART/SPI/I2C/CAN).
• Root-cause complex issues using gdb, JTAG, logic analyzers, and crash logs.
• Write unit/integration tests; contribute to CI/CD and documentation.

Required Skills

• Strong C/C++ for embedded systems; memory/performance optimization.
• Hands-on with Linux kernel/user space, Yocto/BitBake, cross-builds.
• Experience supporting OS-9 codebases (bug fixes, ports, refactors).
• Debugging on real hardware; understanding of bootloaders, BSPs, device trees.
• Git, code reviews, Agile.

Good to Have

• RTOS experience beyond OS-9; telecom/industrial automation exposure.
• Driver development, IPC, and real-time constraints.
• Scripting (Python/Bash) for tooling and build automation.

Job Summary:

We are looking for a highly skilled and experienced C++ Developer with a strong background in embedded systems to join our dynamic product engineering team. The ideal candidate will have at least 5 years of recent hands-on experience in designing, developing, and optimizing high-performance embedded software applications using modern C++ standards (preferably C++11 or later). This is an exciting opportunity to work on cutting-edge technologies in a collaborative and innovative environment.

Key Responsibilities:

• Design, develop, and maintain robust and scalable software solutions using C++11 or above
• Work closely with hardware and embedded teams to implement and integrate real-time systems
• Develop software for embedded platforms and optimize performance for various target environments
• Implement and maintain multithreaded applications and handle concurrency issues efficiently
• Conduct unit and integration testing to ensure high-quality deliverables
• Collaborate with cross-functional teams including Product, QA, Hardware, and Design
• Troubleshoot, debug, and resolve complex technical issues in embedded environments
• Participate in code reviews and adhere to best practices in coding and documentation
• Stay updated on the latest advancements in C++ and embedded systems development

Required Skills & Qualifications:

• Bachelor's or Master’s degree in Computer Science, Electronics, or related field
• 5+ years of professional software development experience with strong recent exposure to C++
• Hands-on experience with C++11 or newer versions (C++14/17 preferred)
• Strong understanding of object-oriented programming (OOP) and software design patterns
• Proficient in embedded system programming and real-time operating systems (RTOS)
• Experience in multithreaded programming and inter-process communication
• Proficient in debugging tools, performance analysis, and memory management
• Familiarity with version control systems like Git

Preferred Skills:

• Experience working on low-level drivers, hardware integration, and peripherals
• Familiarity with scripting languages (Python, Bash) for automation
• Exposure to CI/CD pipelines and Agile/Scrum development methodologies
• Knowledge of tools such as GDB, Valgrind, JTAG debuggers, etc.
• AWS or cloud-based experience is a plus (for remote monitoring/logging or OTA updates)

My Client's India is its largest studio outside USA with 400+ people and growing rapidly. It manages some of the biggest global games in the Casual Gaming, Action Strategy, Match-3, Slots, and Invest Express genres. The game teams are responsible for the long term-vision of the game, its entire Game Design & Tuning, Product Roadmap, Features, Content & Creative decisions, Art work (2D, 3D, Animation), Development, QA/Testing, Analytics & Performance Tracking, User Acquisition & Live Operations.

The India team is full of passionate gamers, who love to play, build great products, and have fun doing it. Studio I expect continued growth and is looking for strong leaders to expand the studio into this next growth phase.

As a Principal Software Engineer, you will be responsible for the software design of large scale applications and features & enhancements which reaches millions of players. You should be passionate about players, performance, scalability and holds a very high bar for quality of the game.

Responsibilities

• Work with Product Management to translate business requirements into technical requirements.
• Owns technical roadmap, design and review for end-to-end games, ensure design quality and integrity
• Modernizing the tech stack
• Bring tech innovations in the game which will help in growth of the games
• Design, code, and develop new features/fix bugs/add enhancements
• Analyze and improve efficiency, scalability and stability of various system resources
• Lead and Mentor junior engineers and drive a culture of technical perfection.
• Drive creative and innovative solutions to complex problems, exemplifying good technical discernment.
• Drive improvements and new approaches to address potential systemic pain points and technical debt, anticipate and avoid problems.
• Take a hands-on approach in the development of prototypes, independently and with others, to establish design decisions and/or technical feasibility.

Required Skills

• Masters or Bachelor’s Degree in Computer Science, Engineering or equivalent
• A minimum of 7 years of professional experience in software development, mobile, desktop or web application development with hands on coding experience covering full stack
• Experience coding in C#, C++, Python, Javascript and SQL
• Working knowledge of mobile landscape, architectures, trends, and emerging technologies.
• A proven foundation in computer science, with strong competencies in data structures, algorithms, OOPS and software design
• Strong problem solving and debugging skills
• Excellent communication skills and the ability to work effectively in a team environment.

Desired Skills

• Experience with mobile development – Android/iOS/Native OR on game engines such as Cocos-2D, Unity or other.

• Experience with Amazon Web Services (EC2, ELBs, ElastiCache, DynamoDB, terraform etc)
• Experience with setting up server monitoring, alerting and server provisioning
• Familiarity with micro service architecture, containers and related technologies (Docker, Kubernetes, ECS)
• Experience with development tools & integrated build systems: XCode, IntelliJ, Git/Jenkins
• Experience of driving activities, review process to ensure software and product quality.
• Willing to pick up any languages, technologies, or methodologies necessary to smite a challenge—and if a conventional solution does not exist, then innovate as necessary.

What we offer you:

• Work in a studio that has complete P&L ownership of games
• Competitive salary, discretionary annual bonus scheme and  RSUs
• Full medical, accident as well as life insurance benefits
• Catered breakfast, lunch and evening snacks
• Child care facilities for women employees and discounted facilities for male employees
• Well stocked pantry
• Generous Paid Maternity/Paternity leave
• Employee Assistance Programs
• Active Employee Resource Groups – Women 
• Frequent employee events
• Additional leave options for most employees
• Flexible working hours on many teams
• Casual dress every single day
• Work with cool people and impact millions of daily players!

[Senior NodeJS Developer] JP Funware & Technologies

Our Vision

JP Funware & Technologies is a new India-based online gaming company foraying into real money gaming with a portfolio that spans skill games (RummyXL) and many more upcoming ultimate games. The company specializes in technology and artificial intelligence to provide amazing game-playing experiences across its platforms. The Company for a future where the platform can deliver a culturally relevant and enjoyable experience in the Indian gaming environment, with features like easy payment withdrawal, less commission, and much more

The Role

JP Funware & Technologies is looking for a Senior NodeJS Developer passionate about working on core system architecture and cutting-edge technology with the experience and knack for real-money gaming. The ideal candidate should have experience in developing high-performance, scalable and secure applications using Node.js. You will be responsible for developing and maintaining server-side applications, implementing new features and fixing bugs, and collaborating with other team members to ensure the success of the project.

Key Responsibilities

·       Creating and maintaining server-side application logic.

·       Ensuring optimal performance of the central database and responsiveness to front-end requests.

·       Collaborating with front-end developers on the integration of elements.

·       Developing high-performance applications by writing testable, reusable, and efficient code.

·       Implementing effective security protocols, data protection measures, and storage solutions.

·       Collaborate with front-end developers on combining their front-end elements and components with the server side.

·       Work on security and data protection.

·       Incorporate data storage solutions (MongoDB).

·       Running diagnostic tests, repairing defects, and providing technical support.

·       Documenting Node.js processes, including database schemas, as well as preparing reports.

·       Design and optimize applications for high performance, high availability, and low latency

·       Write clean, maintainable, and efficient code.

·       Troubleshoot and debug applications.

·       Familiarity with how to create scalable Node.js applications.

Key skills and Experience Required

·       At least 6 years of experience in developing Node.js applications.

·       Strong understanding of JavaScript and Node.js.

·       Experience with popular Node.js frameworks such as Express, Koa, or NestJS.

·       Strong knowledge of database technologies such as MongoDB, MySQL, or PostgreSQL.

·       Experience with Git and version control.

·       Extensive knowledge of socket.io libraries, and frameworks (Express).

·       Working knowledge of front-end technologies such as HTML5 and CSS3.

·       Familiarity with how to create scalable Node.js applications.

·       Great organizational and time management skills.

·       Strong problem-solving and critical thinking skills.

·       Excellent communication and collaboration skills.

·       Master's degree in computer science, information science, or related field (preferred)

Why Explore a Career at JPFT

·      Disproportionate Learning

All you need to bring to the table is a passion for Real Money Games and/or Tech. The responsibility for your growth and managing your learning curve is totally ours. Real money games are one of the most challenging businesses from a Tech & Operations point of view and we intend to expose our employees to various facets of their domain to make them rich with hands-on experience.

·      Work-Life Balance

We do not glorify working overtime in the name of "startup hustle / hyper growth mindset". Efficiency is best driven when there is a solid work-life balance for our team members and we swear by this principle.

·      Wealth Creation

Attractive compensation way above the market along with our generous bonus policy helps us in helping our younger and more passionate team members focus on wealth creation at the very stage of joining the organization.

·      Peace of Mind

Flexible work culture and openness have been an integral part of our company structure from the beginning. We believe in taking care of your mental, physical, and emotional well-being.

It is a golden opportunity to be a part of the team and embark on a two-fold journey - enhancing the sports engagement of an average Indian and being the best RMG tech organization in the country. If you love sports and are passionate about technology and RMG, THIS IS THE PLACE for you!

Benefits at JPFT

Competitive Pay Packages || Swanky & vibrant workspace in Gurgaon || Investment in Learning & Development / Training || Employee Friendly Work Practices || Flexible Leave Policy || Company Laptop || Annual Offsite || Solve Challenging Problems|| High Scope of Innovation

Interview Process JPFT

· Exploratory Call by the HR Team

 The uniqueness of the hiring process at JPFT is that at least ONE Founder will be present in all your interviews. This ensures the candidate gets a very strategic view of where the company aims to be in the medium/long term.

· One Technical Round – The technical round is to gauge & understand competence on the desired skill set and alignment from a technical standpoint.

· Final Round with the Founding Team to understand alignment on the vision and long-term plans of the organization.

JPFT's Tech Stack

NodeJS

Redis

Socet.io

MongoDB

AWS

Unity, C#

Rejolut is among the fastest-growing and award winning Tech companies working on leading technologies namely Blockchain, Machine Learning & Artificial Intelligence, Complex mobile & Web Apps, IoT, etc.Rejolut is a venture-backed company with clients in over several countries namely Malaysia Airlines,gba global,my-earth,biomes, Dlg-hub,etc.

We are looking for Tech geeks having hands-on experience and in love with building scalable, distributed and large web/mobile products and tech solutions. He/She must be an excellent problem solver with passion to self-learn and implement web technologies (frontend + backend). He/She would be responsible for the architecture design, code review, and technology build and deployment activities of the product. 

Responsibilities:-

-Work with the team to develop world-class tools through practical development and collaboration with the open source Go community

-Interact with internal and external developers and communities

-Work with the toolchain team and other engineering teams as well as the community on senior-level feature contributions to Golang, related compiler bug fixes, efficiency improvements, and optimisations, and some light packaging work where needed

-Accept, analyze, and respond to bug reports against tools packages in your area of responsibility

-Plan and track development and periodically report progress to team management.

-  Own the product development from scratch.

- Architect scalable, distributed and large-scale web and mobile solutions from scratch.

- Code for fresh development and to troubleshoot and resolve issues.

- Writing reusable, testable, and efficient code.

- Creating database schemas that represent and support business processes.

- Design and implementation of low-latency, high-availability, and performant applications.

- Able to learn & implement new technology/framework/library at God Speed.

- Customer-focused, react well to changes, work with teams and be able to multitask.

- Experience and knowledge of open-source tools and frameworks, broader cutting edge technologies around server side development. 

Desired Candidate Profile:-

- 1+ years of experience in open source compiler or tools development

- 1+ years of experience with the Go language, runtime and tools

- Experience with or exposure to the Linux kernel is helpful

- Bachelor's degree or higher in computer science, computer engineering, or a technology-related discipline

The following requirements are a plus:

-Experience with C/C++ toolchains and debuggers

-Advanced knowledge of Go language, compiler, library, runtime, and debug internals

-Practical experience developing Go tools for enterprise use

-Direct experience with Go tools community participation

-Knowledge of and experience with system tools internals (e.g. compilers, debug formats)

-Proficiency in multiple programming languages, both dynamic(Javascript, Python, Ruby, etc.) and strongly typed object-oriented language.

-Implementing automated testing platforms and unit tests.

-Must be a proven performer and team player that enjoys challenging assignments in a high energy, fast growing and start-up workplace.

-Good communication and interpersonal skills

Rejolut - As a Career Differentiator

 - We are a young and dynamic team who are obsessed with solving futuristic and evolutionary business problems at scale with the next generation technology like blockchain, crypto and machine learning. Focuses on empowering people across the globe to be technically efficient, making advancements in technology and providing new capabilities that were previously thought impossible.

- We provide exposure to higher learning opportunities so that you can work on complex and cutting edge technology like React, React Native, Flutter, NodeJS, Python, Go, Svelte, WebAssembly. Strong expertise in  blockchain and crypto technology and working with the networks like Hedera Hashgraph, Tezos, BlockApps, Algorand, Cardano.

- We maintain high end transparency with clients and employees as Visibility unlocks Efficiency and trust unlocks Visibility.

- Company is backed by two technology Co-founders, well-versed with consumer applications and their work has been downloaded millions of times and have led teams in leadership positions in companies like Samsung, Purplle, Loylty Rewardz.

Benefits :

> Health Insurance

> Work from Home

> Fast growth and more visibility into the company

> Experience to work on the latest technology

> Competitive Learning Environment with supportive co-workers

> Employee friendly HR Policies

> Paid leaves up to certain limits

> Competitive salaries & Bonuses

> Liberal working atmosphere

> Get mentored by the best in the industry

Schedule:

Day Shift/Flexible working hours

Monday to Friday

Overall Purpose of the Role:

We are looking for a self-motivated Unreal Engine developer who understands the value of working on unique applications and is extremely passionate about innovating and inventing/discovering new things. The candidate will be responsible for developing and maintaining our platform lineup. The key responsibilities of the job are:

• Perform full life-cycle software development
• (Requirements: analysis, Tech design, implementation, integration, testing, debugging, and support).
• Work directly with researchers and project stakeholders to ensure proper software design and delivery.
• Design and develop modular platforms.
• Stay updated on current trends in AR/VR/MR/XR.
• Writing reusable, testable, and efficient code in rapid timing.
• Writing unit tests for important logic and services.
• Implementation of security and data protection.

Credentials we are looking for:

• (Senior UE Developer) 5 years+ of experience with game development and at least 3 years of experience with Unreal Engine
• An entrepreneurial spirit that drives innovation within a target industry.

Skills essential to the role:

• High proficiency with Unreal Engine 4 Blueprints
• High-Level C++ skills within Unreal Engine 4 and outside.
• Extremely good problem-solving skills
• Networking, replication, and multiplayer integrations with VOIP services and video.
• Knowledge of the Google and Apple app store functionality and build processes.
• Core knowledge of how Unreal Engine 4 works internally
• Ability to modify API’s to get the desired result within Unreal Engine 4
• Ability to create and modify plugins within the Unreal Engine framework
• Understanding of fundamental design principles behind a scalable and modular application.

• Skills that will add value:
• AWS and Gamelift
• PHP, databases and Web Integrations
• Understanding of live streaming formats such RTMP. 
• Basic design skills and minimalist sensibilities. No major design skills required, but an understanding of what makes something look good.
• Basic cross-platform CG asset implementation skill
• Collaborative working using version control tools such as Git and project management applications.
• Low-level project planning and estimation skills.
• Strong leadership skills.
• A wicked sense of humor (you’ll need it).