Senior Software Engineer- C++

Job Title:

Job Description

The global technology and services leader that powers the world’s best brands, today and into the future. We’re solution-focused, tech-powered, intelligence-fueled. With unique data and insights, deep industry expertise, and advanced technology solutions, we’re the intelligent transformation partner that powers a world that works, helping companies become refreshingly simple to work, interact, and transact with. We shape new game-changing careers in over 70 countries, attracting the best talent.

The Concentrix Technical Products and Services team is the driving force behind Concentrix’s transformation, data, and technology services. We integrate world-class digital engineering, creativity, and a deep understanding of human behavior to find and unlock value through tech-powered and intelligence-fueled experiences. We combine human-centered design, powerful data, and strong tech to accelerate transformation at scale. You will be surrounded by the best in the world providing market leading technology and insights to modernize and simplify the customer experience. Within our professional services team, you will deliver strategic consulting, design, advisory services, market research, and contact center analytics that deliver insights to improve outcomes and value for our clients. Hence achieving our vision.

Our game-changers around the world have devoted their careers to ensuring every relationship is exceptional. And we’re proud to be recognized with awards such as "World's Best Workplaces," “Best Companies for Career Growth,” and “Best Company Culture,” year after year.

Join us and be part of this journey towards greater opportunities and brighter futures.

Job Description - Senior Software Engineer (Microservices & IoT Platform - On-Prem) Location

Purpose of the Role

We are looking for a Senior Software Engineer to design and develop robust microservices for an onpremise IoT platform. The role involves building services that handle device communication (MQTT), high-volume data processing, and integration with BOS systems, while ensuring reliability, performance, and deployability across customer environments with limited infrastructure. The ideal candidate should be hands-on, strong in backend development, and comfortable working in distributed systems running outside cloud-managed environments.

Key Responsibilities

1. Microservices Development

• Design and develop lightweight, high-performance microservices • Implement REST/gRPC APIs for BOS and external integrations
• Ensure clean separation of concerns and modular design
• Build services that are environment-agnostic and easily deployable

2. IoT & MQTT Integration

• Develop services to

• consume MQTT messages from devices
• process and validate incoming data

• Implement:

• message parsing
• retry mechanisms
• fault tolerance

• Handle:

• intermittent connectivity
• duplicate messages and out-of-order events

3. Data Processing & Storage

• Handle high-volume IoT data ingestion
• Design efficient data handling logic for:

• real-time processing
• batch processing (if required)

• Work with PostgreSQL for:

data persistence

optimized queries

• Ensure efficient disk and memory usage in constrained environments

4. Distributed System Implementation

• Implement:

• asynchronous communication
• event-driven patterns

• Handle:

• concurrency
• idempotency
• eventual consistency

• Work with self-hosted messaging systems (MQTT brokers, Kafka, RabbitMQ, etc.)

5. Performance, Reliability & Scalability

• Optimize services for:

• high throughput
• low latency

• Identify and fix performance bottlenecks
• Ensure services scale within fixed hardware limits (not infinite cloud scaling)
• Build resilient services with:

• retry strategies
• circuit breakers (if applicable)

6. Deployment Awareness & Operability

• Write services that are:

• container-friendly (Docker)
• easy to configure via environment/config files

• Understand:

service startup dependencies

configuration management

• Support:

• on-prem deployments and upgrades

• Ensure services are:

• easy to debug in real environments (logs, error handling)

7. Code Quality & Best Practices

• Follow coding standards defined by architects
• Write clean, maintainable, testable code
• Participate in:

code reviews

design discussions

8. Collaboration

Work closely with:

• System Architect (for design clarity)
• DevOps (for deployment & release packaging)
• QA team (for testing and validation)

• Contribute to improving overall system design

9. Production Support

• Troubleshoot production issues in customer/on-prem environments
• Perform root cause analysis
• Fix bugs and improve system reliability
• Handle real-world issues like config mismatches, infra limitations

Required Skills & Experience Experience

• 5-8 years in backend development
• Strong experience in microservices architecture
• Experience working on production-grade systems

Technical Skills

• Strong programming skills in:

• C++ / Go

• Experience with:

• REST APIs
• distributed systems

• Strong understanding of:

• multithreading
• concurrency

IoT & Messaging

• Experience with:

• MQTT (preferred / important)
• message queues / event systems

• Understanding of real-time data processing

Database

• Strong knowledge of PostgreSQL
• Experience in:

• query optimization
• indexing
• handling large datasets

Infrastructure & Deployment Awareness

• Experience with:

• Docker (important)

• Basic understanding of:

• Linux systems
• networking basics (ports, connectivity)

• Exposure to:

• Kubernetes / K3s (good to have)
• deployment environments (non-cloud setups preferred)

Good to Have

• Experience working on on-prem or edge-based systems
• Exposure to self-hosted messaging systems (Kafka, RabbitMQ, EMQX, Mosquitto)
• Knowledge of event-driven architecture
• Exposure to hybrid systems (on-prem + cloud sync)

Soft Skills

• Strong problem-solving skills
• Ability to work independently with minimal supervision
• Good communication and collaboration skills
• Ownership mindset

Location:

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