02.09.2026 aktualisiert

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100 % verfügbar

Senior Full-Stack Software Engineer | Backend Systems & Architecture

kassala, Sudan
Weltweit
Bachelor's Degree in Civil Engineering
kassala, Sudan
Weltweit
Bachelor's Degree in Civil Engineering

Profilanlagen

cv.pdf

Skills

Client-Server-ArchitekturEmbedded SystemsOpenStackSoftware ArchitectureSoftware SystemsSolution ArchitectureSupport EngineeringSystemarchitekturServersystemeBackend-programmierungFull Stack Entwicklung
Backend Systems & Architecture
Expertise in designing and implementing scalable backend systems and architectures, including high-concurrency infrastructure tested with approximately 16,000 concurrent users, microservice-based backends, and end-to-end product development across ERP, CRM, logistics, delivery, and security-sensitive systems.

Full-Stack Development with Rust, TypeScript, Node.js & Vue.js
Strong proficiency in full-stack development using Rust, TypeScript, Node.js, and Vue.js, with hands-on experience building multi-sided platforms, business applications, and operational systems across multiple products and industries.

Mobile Development with Flutter & React Native
Practical experience developing cross-platform mobile applications using Flutter and React Native, including building complete mobile solutions for platforms serving over 1,300 organizations, independently learning technologies under tight delivery timelines.

PostgreSQL & Database Design
Solid experience in database design and architecture using PostgreSQL, including designing database structures for enterprise systems, multi-company ERP platforms, and offline-first architectures for unreliable network conditions.

ERP & CRM Development
Extensive experience developing ERP and CRM systems, including multi-company ERP platforms, accounting modules, sales CRM with offline-first architecture, and enterprise workflows for significant local organizations.

Business Automation & Workflow Engineering
Proven ability to build business automation solutions including bank-receipt processing, WhatsApp workflows, student enrollment, course-poster generation, teacher payout processing, payment confirmation, and VoIP analytics automation.

Security-Sensitive System Design
Experience designing and implementing security-focused platforms, including encrypted messaging, short-lived authentication tokens, refresh-token sessions, and communication architectures where the server functions as a relay without access to user conversations.

Technical Leadership & Code Review
Experience supervising small engineering teams, conducting code reviews, managing daily development workflows through Git, and reporting directly to executive stakeholders.

VoIP Analytics & Communications Platforms
Built analytics and automation around Grandstream-based VoIP environments, automated call-duration and trunk analysis for billing, and designed broader mail and communications platforms with automated workflows.

Erfahrung

Berufserfahrung0 - 5 Jahre
Freelancer seit2022

Sprachen

Englishverhandlungssicher

Projekthistorie

Software Engineer (Sales CRM)

Muawiya Al-Bireir Group
Designed and developed a sales-focused CRM consisting of two applications and a management dashboard. Built workflows for tracking sales representatives and recording customer interactions. Designed an offline-first architecture for sales staff operating in unreliable network conditions. Developed detailed reporting and data workflows around demanding business requirements.

Senior Software Engineer / Full-Stack Engineer

Vecta
Building a large-scale technology ecosystem spanning delivery, B2B operations, and dark-store management. Developed a multi-sided delivery platform covering partner, supplier, client, and user applications. Contributed to a B2B-focused platform and the KUSH dark-store ecosystem. Designed and implemented backend services, applications, business workflows, and operational systems across multiple products. Developed Sa3i as part of the Vecta ecosystem, including high-concurrency backend infrastructure tested with approximately 16,000 concurrent users. Work spans logistics, inventory, order management, delivery operations, and real-time systems.

Independent Software Engineer / Consultant

Independent
Delivered software systems for 20+ organizations, with an estimated 300 projects across long-term client relationships and individual engagements. Work includes ERP, CRM, logistics, delivery, communications, automation, social platforms, cryptocurrency, and internal business systems. Owns projects from requirements discovery and technical proposals through prototyping, architecture, database design, implementation, testing, and delivery. Frequently works directly with non-technical business owners and translates business processes into production software.

Software Engineer (Secure Social Platform)

Liberagram
Designed and implemented a security-focused social and communication platform. Designed the communication architecture so the server functions primarily as a relay and cannot access users conversations. Implemented encrypted messaging and file handling with short-lived authentication tokens and refresh-token sessions. Conducted extensive security research around cryptographic communication and secure system design.

ERP Developer (Multi-Company ERP)

Smart Node (Kassala Farm)
Contributed to an ERP platform supporting a group operating across five companies. Participated from the early stages of the project and later took ownership of accounting-related requirements. Worked on enterprise accounting workflows and system requirements within a multi-company environment.

ERP Developer (Enterprise ERP)

Smart Node (Biolink)
Developed accounting functionality within a large ERP platform containing multiple business modules. Worked on production-oriented accounting workflows for a significant local organization.

Software Developer

Metafortech
Owned software projects end-to-end, working directly from requirements through implementation and delivery. Developed business applications across the full stack. Worked independently across architecture, development, and project delivery.

Software Engineer (VoIP Analytics & Communications Platform)

Roya
Built analytics and automation around a Grandstream-based VoIP environment. Automated call-duration and trunk analysis used for billing. Reduced manual billing analysis from approximately 5 hours per week to around 30 minutes. Designed and implemented a broader mail and communications platform with automated workflows and a microservice-based backend architecture.

Software Developer / ERP Team Lead

Smart Node
Supervised three junior-to-mid-level developers, reporting directly to the CEO. Designed system architecture and database structures for multiple enterprise systems including hotel management and solar-energy platforms. Conducted code reviews and supervised the team's daily development workflow through Git. Participated across multiple ERP modules and business domains. Developed accounting functionality for large ERP platforms serving Biolink and Kassala Farm. Built business automation including bank-receipt processing, WhatsApp workflows, student enrollment, course-poster generation, teacher payout processing, and payment confirmation.

Software Developer (ERP)

Project for Investment
Developed a large-scale mobile/business application and ERP system for a leading construction organization.

Software Developer

Ramaat Al-Hadaq
Served as the sole developer responsible for building the Sudabids platform. Developed the web platform and mobile application for approximately 1,300 construction companies. Built the system end-to-end including backend, web application, mobile application, multi-role administration, and supporting infrastructure. Developed the mobile application using React Native. Implemented a subscription-based platform serving paying organizations.

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