Senior IoT Backend Engineer

This role is for one of the Weekday's clients

Salary range: Rs 1500000 - Rs 2500000 (ie INR 15-25 LPA)

Min Experience: 5 years

Location: Remote (India)

JobType: full-time

We are seeking a seasoned Senior IoT Backend Engineer to design, develop, and maintain backend applications and cloud services, with a strong focus on system security, scalability, and seamless integration with IoT environments. The ideal candidate will bring hands-on experience in IoT development, backend engineering, and secure cloud architecture—ensuring data from connected devices is processed efficiently and safely.

Requirements

Key Responsibilities:

Backend Development

• Design, develop, and maintain scalable backend systems and APIs for public, private, and partner-facing use cases using modern best practices.
• Build systems capable of processing millions of concurrent data points using both SQL and NoSQL databases.
• Develop IoT-specific systems for tasks such as monitoring device data flow, firmware over-the-air (OTA) updates, and bidirectional communication with devices.

Cloud Infrastructure Management

• Architect and manage secure and scalable AWS cloud infrastructure with services such as Lambda, EC2, API Gateway, S3, RDS, DynamoDB, IoT Core, IoT Events, and MSK.
• Develop microservices-based systems with plug-and-play architecture for modular deployment.

Cloud Security Implementation

• Implement strict cloud security policies, including IAM, least privilege access, and MFA.
• Utilize AWS tools like Security Hub, GuardDuty, and CloudTrail to detect and mitigate security risks.
• Manage secure data storage, encryption (in-transit and at-rest), and regular backups.
• Conduct vulnerability assessments and penetration testing for cloud systems and APIs.

API Security & Integrations

• Build secure APIs with strong authentication and authorization frameworks (OAuth2, JWT, API keys).
• Harden APIs against threats like replay attacks, brute-force attempts, and implement rate-limiting.
• Develop secure integrations with third-party platforms ensuring compliance and data protection.

Monitoring & Incident Response

• Establish real-time monitoring and alert systems using AWS CloudWatch, ELK, or Splunk.
• Develop and execute incident response plans for rapid detection and resolution of security events.
• Support internal and external stakeholders with technical troubleshooting and infrastructure queries.

Qualifications & Experience:

• Degree in Computer Science, Engineering, or a related field.
• Strong backend development skills (Python, Node.js, or Java) with secure coding practices.
• Proven experience in building IoT solutions and working with protocols like MQTT.
• Deep expertise in AWS cloud services, VPC, and infrastructure security tools.
• Solid understanding of API security protocols and integration patterns.
• Experience with Docker/Kubernetes and container security models.
• Hands-on experience with encryption, firewalls, and secure networking.
• Familiarity with DevSecOps practices and secure CI/CD pipeline integration.
• Effective communicator with both technical and non-technical teams.

Preferred Attributes:

• Passionate about impactful, socially-driven technology solutions.
• Proactive, detail-oriented, and thrives in fast-paced, distributed work environments.
• Open source contributions or community involvement is a plus.
• Strong verbal and written communication skills.
• Demonstrates initiative and a collaborative mindset.

Skills:
IAM • Backend Development • API Security • AWS Infrastructure • IoT Systems • MQTT • Microservices • DevSecOps • Python/Node.js/Java • Docker/Kubernetes