高级后端工程师（物联网与智能平台）
Senior Backend Engineer (IoT & Smart Platforms)
我们正在寻找一位有远见的高级后端工程师，具备物联网生态系统和机器对机器（M2M）连接的深厚专业知识，从零开始领导我们下一代智能平台的开发。在此职位中，您将负责构建产品的“神经系统”，在物理硬件（如车载终端和智能电表）与可扩展的云逻辑之间架起桥梁。
您将负责物联网数据的端到端生命周期，从直接的硬件集成和M2M SIM编排，到构建自动化监控系统的复杂业务逻辑。
关键职责
· 从零开始设计：设计并实现一个面向高吞吐量物联网数据摄入的微服务架构。
· 硬件与SIM集成：直接集成多种硬件（车载终端、智能电表），并通过电信运营商API管理M2M SIM的生命周期（配置、激活和数据限额编排）。
· 协议实现：开发对物联网协议的支持，包括MQTT、CoAP、HTTP/2、WebSockets和LwM2M。
· 连接管理：实现逻辑以监控信号强度（RSSI）、管理APN配置，并处理使用蜂窝M2M/eUICC技术的设备的故障转移逻辑。
· 逻辑开发：为智能解决方案构建复杂的后端逻辑，例如地理围栏、实时警报和自动数据使用限制，以防止SIM超支。
· 数据编排：使用PostgreSQL（及TimescaleDB）管理大量时间序列数据流，确保数据完整性和查询性能。
· 安全性：实现行业标准的安全措施，包括TLS/SSL、X.509证书以及私有APN/VPN隧道，以保障M2M通信安全。
技术要求与技能
核心后端与基础设施
· 框架：必须精通Node.js和NestJS（TypeScript）。
· 架构：有设计事件驱动架构和微服务的经验。
· 数据库：深入理解PostgreSQL（模式设计和性能调优）。
物联网与连接专业知识
· M2M SIM知识：有通过REST API与连接管理平台（CMP）如Cisco Jasper、Ericsson DCP或1NCE集成的经验，用于管理SIM状态和数据消耗。
· 蜂窝技术：了解NB-IoT、LTE-M（Cat-M1）和4G/5G的限制及其对后端轮询和休眠周期逻辑的影响。
· 设备通信：有硬件到后端集成的经验，包括车载终端（GPS、OBD-II）和智能电表。
查看英文原文
We are seeking a visionary Senior Backend Engineer with deep expertise in IoT ecosystems and M2M connectivity to lead the development of our next-generation smart platform from scratch. In this role, you will architect the "nervous system" of our product, bridging the gap between physical hardware—such as telematics units and smart meters—and scalable cloud logic.
You will be responsible for the end-to-end lifecycle of IoT data, from direct hardware integration and M2M SIM orchestration to building complex business logic for automated monitoring systems.
Key Responsibilities
· Architect from Scratch: Design and implement a greenfield, microservice-based backend architecture optimized for high-throughput IoT data ingestion.
· Hardware & SIM Integration: Directly integrate diverse hardware (Telematics, Smart Meters) and manage the M2M SIM lifecycle (provisioning, activation, and data limit orchestration) via telco APIs.
· Protocol Implementation: Develop handlers for IoT protocols including MQTT, CoAP, HTTP/2, WebSockets, and LwM2M.
· Connectivity Management: Implement logic to monitor signal strength (RSSI), manage APN configurations, and handle failover logic for devices using cellular M2M/eUICC technology.
· Logic Development: Build complex backend logic for smart solutions, such as geofencing, real-time alerting, and automated data-usage capping to prevent SIM overages.
· Data Orchestration: Manage massive streams of time-series data using PostgreSQL (and TimescaleDB) to ensure data integrity and query performance.
· Security: Implement industry-standard security including TLS/SSL, X.509 certificates, and Private APN/VPN tunneling for secure M2M communication.
Technical Requirements & Skillsets
Core Backend & Infrastructure
· Frameworks: Mastery of Node.js and NestJS (TypeScript) is essential.
· Architecture: Proven experience in designing Event-Driven Architectures and Microservices.
· Databases: Deep knowledge of PostgreSQL (schema design and performance tuning).
IoT & Connectivity Expertise
· M2M SIM Knowledge: Experience integrating with Connectivity Management Platforms (CMPs) like Cisco Jasper, Ericsson DCP, or 1NCE via REST APIs to manage SIM states and data consumption.
· Cellular Technologies: Understanding of NB-IoT, LTE-M (Cat-M1), and 4G/5G constraints and how they impact backend polling and sleep-cycle logic.
· Device Communication: Hands-on experience with hardware-to-backend integration for Telematics (GPS, OBD-II) and Smart Metering (DLMS/COSEM).
· Protocols: Expertise in MQTT/S, CoAP, and handling binary data payloads (Protocol Buffers, MessagePack).
DevOps & Delivery
· Containerization: Proficient with Docker and Kubernetes.
· CI/CD: Experience building automated deployment pipelines for scalable cloud environments.
Requirements
Qualifications
· Education: Bachelor’s or Master’s degree in Computer Science, Telecommunications, or a related field.
· Experience: 5+ years in Backend Development, with at least 3 years specifically focused on IoT/M2M product ecosystems.
· Analytical Skills: Ability to troubleshoot network-layer issues (packet loss, latency) specific to cellular M2M environments.
· Innovation: Demonstrated ability to take a product from a conceptual "scratch" phase to a production-ready, global scale.
Preferred Qualifications
· Experience with eSIM/eUICC remote provisioning standards.
· Knowledge of Private APN setup and secure IPSEC/VPN tunneling between the Telco Core and the Cloud.
· Familiarity with hardware communication standards like RS-485, CAN bus, or Modbus.
Originally posted on Himalayas