Chera Mihiretu

Chera Mihiretu

$30/hr
backend developer
Reply rate:
-
Availability:
Full-time (40 hrs/wk)
Age:
22 years old
Location:
Adama, Oromia, Ethiopia
Experience:
3 years
Chera Mihiretu Tadesse Ethiopia | Github | LinkedIn PROFESSIONAL EXPERIENCE Mobile Developer, Africa to Silicon Valley 10/2024 – Present | Adama Spearheaded the engineering culture shift toward Test-Driven Development (TDD), architecting reusable Mockito stubs that increased test coverage from 42% to 85% and slashed regression defects by 30%. Accelerated developer velocity by refactoring core modules into Clean Architecture; this reduced code complexity by 25% and optimized documentation, cutting new-hire onboarding time from 14 days to just 5 days. • • Full-stack Developer, Sydek 07/2025 – 09/2025 | Adama Architected resilient NestJS backend services, designing robust RESTful APIs that sustained high-traffic loads and guaranteed 99.9% uptime for mission-critical web features. Maximized database throughput by 30% and slashed query latency by 40% through advanced PostgreSQL indexing (GIN/GIST), schema normalization, and strategic query refactoring. Instituted a Dockerized CI/CD pipeline, automating e2e testing (Jest + Supertest) to preemptively resolve 150+ staging bottlenecks and accelerate release cycles by 25%. • • • PROJECTS ASTU Smart Knowledge Base, 06/2025 – Present Study smart. Code fast. Crush your exams. Formulated intelligent post recommendation algorithms using advanced query heuristics, which drove a 29x increase in user engagement (from 1% to 30%) and boosted connection acceptance rates. Optimized system performance by implementing Redis for rate limiting and message queuing; this reduced user wait times by 40% and cut operational cloud costs by 2.4%. Modernized legacy infrastructure by migrating the csrobots library from Python 2.7 (Desktop) to a Python 3.13 webbased platform, scaling access to 300+ instructors and students. • • • Theft Detecting System, Smart Security, Powered by Intelligence. 02/2025 – 05/2025 Developed a real-time surveillance ecosystem, integrating a cross-platform Flutter app with IoT hardware (ESP32, Arduino) and FastAPI backend for sub-second video streaming. Orchestrated an intelligent alert system using backend-triggered push notifications and local caching, optimizing data storage handling (100MB+) and improving video replay speed by 43%. • • EDUCATION Bachelor of Science in Software Engineering, 03/2022 – Present | Ethiopia Adama Science and Technology University Relevant Courses: Distributed Systems, Advanced Databases, Systems Engineering, Advanced Java. • Tech Education and Incubation | A2SV - Backed by Google, 12/2023 – 08/2025 African to Silicon Valley A2SV graduate , Solving more than 1300 problems across Leetcode and Codeforces , completing over 1000 hours of Data Structures and Algorithms training and participating in over 400 contests. Relevant Coursework: Dynamic programming, Tree and Graph Algorithms, Binary search, Bit manipulation, Trie. • • AWS Cloud Computing, ALX Africa 01/2025 – 11/2025 | Remote Completed AWS Cloud Practitioner & Solutions Architect certifications, gaining hands-on experience through 21 real-world labs (including 8 challenge labs). Achieved 95%+ scores across major AWS services like Lambda, VPC, and EC2. • SKILLS Languages: Python, Java, C++, Typescript, Golang Cloud & DevOps: AWS (Lambda, VPC), TDD, CI/CD, Docker Frameworks & Tools: Flutter, Next.js, FastAPI Others: Machine Learning, IoT, AI Agents, CP, SQL, NoSQL AWARDS AND CERTIFICATION 2025 ACPC (Africa and Arab Collegiate Programming Championship) – Qualified among the top 50+ teams in Ethiopia. 2024 EtCPC Nationwide in high-pressure team competition (team of 3) from a 60+ team. AWS Certified Cloud Practitioner: Expertise in AWS fundamentals and cloud best practices. AWS Certified Solutions Architect: Proficient in designing secure, scalable, and cost-optimized AWS architectures. • • • • LEADERSHIP LocalizeAI, Leveraging Generative AI to Benefit Ethiopians Led team of 4 as backend developer, building AI-driven localization tools; project ranked in top 8 out of 54 entries. •
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