MA
Testing & Commissioning Engineer Manager
Freelanceabout 1 month ago
Job Description
Kigali
CDI
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Serv Tech Rwanda is looking for a Mid level Backend . NET Engineer to help build large-scale products across Africa, with a focus on USSD and telco charging in Rwanda. YOUR IMPACTDevelop and maintain backend services using Cand . NET, contributing across design, implementation, testing, deployment, and optimisation. Support the performance, availability, and reliability of high-traffic backend services. Participate in technical discussions, code reviews, and continuous improvements to engineering standards. Help improve CI/CD processes, automated testing, security, monitoring, and developer workflows. Work closely with Product, Design, BI, and other engineering team members to deliver business-critical features. Develop and maintain USSD menus, applications, and short-code flows, considering session timeouts, language support, and device limitations. Support integrations with Rwandan MNOs, including MTN Rwanda and Airtel Rwanda, for USSD, charging, and Mobile Money services. Build and maintain charging functionality, including balance checks, payment requests, refunds, retries, and duplicate-transaction prevention. Develop secure, reliable, and low-latency APIs and adapters for USSD gateways, charging platforms, and wallet providers. Follow applicable regulatory, privacy, KYC/AML, and mobile operator requirements. Our Requirements 3+ years of professional C/. NET development experience, including practical experience with . NET Core or modern . NET. Recent hands-on experience delivering USSD services or telco charging integrations in Rwanda is a must. Good SQL skills, including database design, queries, and stored procedures. Understanding of backend and service architecture, including stateless services, caching, messaging, and RESTful APIs. Hands-on experience with Docker, CI/CD pipelines, and automated testing. Experience deploying or supporting applications in a public cloud environment; AWS is preferred. Experience with Redis or a similar caching or No SQL technology. Ability to troubleshoot backend performance issues across applications, databases, and caching layers. Good problem-solving skills and the ability to work independently while collaborating effectively with the wider team. Clear written and verbal communication skills in English. NICE TO HAVE: Experience with Mobile Money integrations, SMPP, SMS gateways, OAuth 2, or Open ID Connect. Familiarity with monitoring and observability tools such as Prometheus, Grafana, or Open Telemetry. Understanding of resiliency patterns such as retries, timeouts, rate limiting, and circuit breaking. Experience working with telco integrations in other African markets.
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Serv Tech Rwanda is looking for a Mid level Backend . NET Engineer to help build large-scale products across Africa, with a focus on USSD and telco charging in Rwanda. YOUR IMPACTDevelop and maintain backend services using Cand . NET, contributing across design, implementation, testing, deployment, and optimisation. Support the performance, availability, and reliability of high-traffic backend services. Participate in technical discussions, code reviews, and continuous improvements to engineering standards. Help improve CI/CD processes, automated testing, security, monitoring, and developer workflows. Work closely with Product, Design, BI, and other engineering team members to deliver business-critical features. Develop and maintain USSD menus, applications, and short-code flows, considering session timeouts, language support, and device limitations. Support integrations with Rwandan MNOs, including MTN Rwanda and Airtel Rwanda, for USSD, charging, and Mobile Money services. Build and maintain charging functionality, including balance checks, payment requests, refunds, retries, and duplicate-transaction prevention. Develop secure, reliable, and low-latency APIs and adapters for USSD gateways, charging platforms, and wallet providers. Follow applicable regulatory, privacy, KYC/AML, and mobile operator requirements. Our Requirements 3+ years of professional C/. NET development experience, including practical experience with . NET Core or modern . NET. Recent hands-on experience delivering USSD services or telco charging integrations in Rwanda is a must. Good SQL skills, including database design, queries, and stored procedures. Understanding of backend and service architecture, including stateless services, caching, messaging, and RESTful APIs. Hands-on experience with Docker, CI/CD pipelines, and automated testing. Experience deploying or supporting applications in a public cloud environment; AWS is preferred. Experience with Redis or a similar caching or No SQL technology. Ability to troubleshoot backend performance issues across applications, databases, and caching layers. Good problem-solving skills and the ability to work independently while collaborating effectively with the wider team. Clear written and verbal communication skills in English. NICE TO HAVE: Experience with Mobile Money integrations, SMPP, SMS gateways, OAuth 2, or Open ID Connect. Familiarity with monitoring and observability tools such as Prometheus, Grafana, or Open Telemetry. Understanding of resiliency patterns such as retries, timeouts, rate limiting, and circuit breaking. Experience working with telco integrations in other African markets.
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