Relief Applications is a technology-driven organisation dedicated to supporting humanitarian and development operations worldwide. By building digital solutions for NGOs, UN agencies and mission-driven organisations, the company enables faster, more efficient and more informed crisis response. Their work spans data management platforms, mobile applications, AI decision-support systems, and bespoke information tools that shape emergency and long-term development outcomes. The organisation’s in-house no-code application builder is a central pillar in this mission. Designed to help humanitarian actors rapidly create digital tools without writing code, the platform delivers adaptable, modular functionality capable of supporting diverse field operations. Used across multiple global projects, it continues to evolve to meet increasing demand, improve user experience and ensure long-term sustainability. Relief Applications is now recruiting a Full Stack Senior Developer / Tech Lead who will guide the platform’s technical evolution, strengthen its architecture and contribute hands-on to high-quality code. This role is suited to a developer with strong technical depth, strategic thinking, and a commitment to building meaningful, socially impactful technology. Role Objective The Tech Lead will assume end-to-end responsibility for the architecture and technical vision of the organisation’s no-code platform. This includes: Providing hands-on technical leadership across the stack. Ensuring robust system architecture and long-term platform sustainability. Strengthening performance, reliability, scalability and security. Contributing directly to backend and frontend development. Supporting engineering best practices, clean code principles and high technical standards. The platform’s architecture spans: MongoDB Node.js and Express GraphQL and REST APIs Angular within an Nx monorepo Azure services and automation Linux server operations with Nginx The Tech Lead works in close collaboration with developers and product managers to align technical direction with product priorities, ensuring the platform continues to support humanitarian missions worldwide. Key Responsibilities The Tech Lead will engage in a wide range of technical and strategic tasks, including: Leading the design and continuous improvement of the system architecture. Writing, reviewing and maintaining high-quality backend and frontend code. Ensuring performance optimisation, robust security measures and scalability. Creating and improving REST and GraphQL APIs. Strengthening engineering culture through code reviews, documentation and mentorship. Managing deployments, DevOps pipelines and infrastructure reliability. Coordinating platform improvements with product managers and mission-driven requirements. Ensuring long-term technical stability through thoughtful decision-making. This role requires both leadership capability and hands-on technical involvement. Required Qualifications and Experience Relief Applications is seeking a developer with strong technical proficiency, proven architectural insight and a track record of delivering high-quality software. Requirements include: Bachelor’s or Master’s degree in Computer Science or Engineering. Minimum 5 years of relevant professional experience. Demonstrable portfolio of past projects or contributions. Technical expertise must include: MongoDB (v8+) Cluster administration Replication and performance tuning Atlas configurations, aggregations and triggers Node.js & Express Best practices, middleware, error handling REST API and GraphQL API development Angular (v15+) in an Nx Monorepo Module, service and component architecture Experience with Angular Material or Kendo UI Azure Services Functions, App Service, Front Door Deployment automation (ARM, CLI, GitHub Actions, Azure DevOps) Linux Server Management Ubuntu Server administration Security hardening Nginx configuration and optimisation Candidates should be pragmatic, comfortable exploring infrastructure tasks, and focused on long-term performance and stability. Desirable Skills Additional assets include: Experience with Keycloak (SSO, OAuth2, OpenID Connect). Familiarity with SurveyJS for dynamic form building. Proficiency in French or Spanish. Work Conditions Relief Applications welcomes global applicants located within ±5 hours of Central European Time (CET/CEST). The organisation offers: Full remote work. Flexible working hours. Paid leave (contract-dependent). Performance bonuses. Professional development training. Team-building activities. Birthday leave and other internal benefits. Contractual benefits vary depending on employment type and location. About Relief Applications Relief Applications designs digital solutions that strengthen humanitarian response, improve aid delivery and expand access to data-driven decision tools. Their work includes: Information management systems AI and interactive tools Capacity building and training Mobile and web development MEAL and research solutions Cybersecurity services The organisation partners with global actors to ensure high-quality, impactful solutions that support vulnerable populations. VISIT OFFICIAL WEBSITE TO APPLY For more opportunities such as these please follow us on Facebook, Instagram , WhatsApp, Twitter, LinkedIn and Telegram Disclaimer: Global South Opportunities (GSO) is not the hiring company. For any inquiries, please contact the hiring organization directly. Please do not send your applications to GSO, as we are unable to process them. Due to the high volume of emails we receive daily, we may not be able to respond to all inquiries. Thank you for your understanding.