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Daniel Aondoaver Tsav

I am a |

I build secure, scalable, and high-performance software solutions that solve real business problems.

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Daniel Aondoaver Tsav
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About Me

Engineering Excellence

A brief overview of my journey in software engineering

Daniel Aondoaver Tsav is a passionate Software Developer, Cybersecurity Practitioner, and Computer Scientist with more than six years of practical experience delivering enterprise software solutions.

He specializes in backend engineering, REST APIs, enterprise application development, banking systems, cybersecurity, and modern cloud-based software.

He has successfully delivered mission-critical applications across banking, government, healthcare, cooperative societies, religious organizations, and enterprise businesses.

He enjoys solving difficult engineering problems, designing scalable architectures, and building software that creates measurable business value.

Collaborative

Ensure project success and collaborative goals achievement by working with diverse teams.

Result-Oriented

Proven records with distinct drive for project delivery that satisfy individual and enterprise demand.

Areas of Interest

01 Advanced backend and distributed systems development using Java Spring Boot and .NET
02 Software architecture and system design for scalable enterprise applications
03 Cybersecurity and secure application development, including API security and vulnerability assessment
04 Data engineering and applied machine learning for data-driven decision support
05 Technical leadership, mentorship, and collaborative project delivery
Career

Work Experience

6+ years of delivering enterprise software solutions

PN Consulting Limited May 2022 – Present

Software Developer, Application Support

Fulltime-Hybrid Abuja, Nigeria
  • Utilize technical expertise in software development, problem-solving, and effective communication to deliver high-quality mission-critical solutions.
  • Develop clean and maintainable APIs to enable seamless communication between different application platforms.
  • Use Git for version control, codebase management and deployment workflows, promoting code quality through regular team reviews and continuous integration.
  • Conduct analysis sessions with business analysts to provide design architectures for software solutions.
  • Provide continuous application support services for Core Banking (Amplitude and BankOne), reducing system downtime and improving user experience.
  • Assist in running EOD on Amplitude Core Banking.
  • Manage incidents by identifying and resolving core banking application errors, minimizing system downtime.
JavaSpring Boot.NETPostgreSQLGitCore BankingAPI Development
Oasis Management Company May 2021 – April 2022

Software Developer/Tester

Onsite Abuja, Nigeria
  • Developed RESTful APIs to facilitate seamless communication between different systems and enhanced overall functionality.
  • Conducted continuous quality assurance tests on developed systems and certified them for production.
  • Continuously documented test processes and results on JIRA, assigned bug fixes, and followed up with developers.
  • Collaborated with a team to develop and implement a customer support system, enhancing client service delivery.
  • Created user manuals and documentation for new and existing applications.
REST APIsJIRAQA TestingDocumentationCustomer Support
Torbita Computer Training School Jan 2021 – April 2021

Facilitator (Data Science)

Part-time Onsite Abuja, Nigeria
  • Empowered students to develop strong understanding of data science concepts using Scikit-learn, NumPy, and Pandas.
  • Guided students to complete real-world data science projects, demonstrating practical application of their skills.
  • Fostered a collaborative learning environment where students can share ideas and learn from each other.
  • Mentored students to succeed in data science competitions and hackathons.
PythonScikit-learnNumPyPandasMachine LearningMentorship
Portfolio

Featured Projects

Enterprise solutions delivered across banking, government, healthcare, and more

Enterprise

Cooperative Financial Solution

Developed and launched a financial accounting solution for the Nigerian Institute of Medical Research Multipurpose Cooperative, using Java Spring Boot to handle essential financial operations.

JavaSpring BootPostgreSQLREST API
Government

CAC Company Registration Portal

Played a pivotal role in creating a company registration portal for the Corporate Affairs Commission, streamlining business registration in Nigeria through backend development with PostgreSQL and Java Spring Boot.

JavaSpring BootPostgreSQLEnterprise
Banking

Channel Manager Solution

Designed and implemented a robust reconciliation and auto-reversal solution using .NET Web API and Blazor at Jaiz Bank Limited, with potential for rollout to other banks.

.NETBlazorWeb APISQL Server
Banking

Core Banking Enhancement — TajBank

Worked closely with database and channels teams to customize the Sopra core banking system by implementing charge splitting, significantly simplifying transactions and improving response times.

Core BankingOracleJavaAPI Integration
Web App

Digital Transformation Portal — Catholic Archdiocese of Lagos

Contributed to the development of a digital transformation portal enabling secure document management and digital remittance for the Catholic Archdiocese of Lagos.

PHPMySQLJavaScriptSSL
Government

Borno State Revenue API System

Designed and developed RESTful APIs for the Borno State Internal Revenue application, enhancing inter-system communication and revenue tracking.

JavaSpring BootREST APIPostgreSQL
Web App Visit Site

Benue Links Website

Delivered an efficient and secure website for Benue Links Nig. Ltd, boosting their online presence and business operations.

PHPWordPressMySQLJavaScript
Web App Visit Site

GEFMore Limited Website

Built a professional business website for GEFMore Limited to enhance their digital presence and client engagement.

PHPJavaScriptMySQLBootstrap
Web App Visit Site

Our Testimony Ministry Website

Created a secure, engaging website for Our Testimony Ministry, supporting their online outreach and community building.

PHPWordPressMySQLCSS
Expertise

Technical Skills

Technologies and tools I work with daily

Programming Languages

Java 95%
C# 85%
PHP 80%
JavaScript 80%
Python 60%

Frameworks & Libraries

Spring Boot 92%
.NET / Blazor 85%
React.js 75%
Flask 65%
Thymeleaf 75%

Databases

PostgreSQL 90%
MS SQL Server 85%
MySQL 85%
MongoDB 65%

DevOps & Tools

Git 90%
Docker 70%
RabbitMQ 65%
Hangfire 65%
JIRA 80%
MS Azure 60%
VPS 70%

Other Skills

Cybersecurity 70%
Ethical Hacking 60%
System Maintenance 80%
Corel Draw 60%
Adobe Photoshop 55%
Research

Publications

Academic contributions to computer science and applied research

2023

Naïve Bayes Based Diagnostic System for Ear, Nose and Throat (ENT) Diseases

Aniobi D.E., Tsav D. A., Aniobi P. N. and Zakka E. B.

Journal for Applications of Modelling and Simulation (AMS) — Vol. 7, pp. 29-37

Read Paper
2026

Optical Study of Sol-Gel Derived TiO₂ Modified with Silver Nanoparticles for Photovoltaic Applications

Tsav D. A. et al.

International Journal of Modern Science and Research Technology — Volume 4, Issue 3, March 2026

Read Paper
Credentials

Training & Certifications

Continuous learning and professional development

Cybersecurity and Ethical Hacking Internship

International Cybersecurity & Digital Forensics Academy

October 2024 – 2026 Nasarawa, Nigeria

.NET Backend Developer Internship

Tecvinson Academy

2023 – Date Sweden (Remote)

Blazor - Real World Developer Portfolio (WASM + Web API)

Udemy

May 2023

Certified Web Master; Diploma in Web Design/Development

Professional Certification

May 2013 – November 2013

Africa and Arab Collegiate Programming Championship

ACPC Contest

September 2019 & January 2020

Career Development, Skills Acquisition, General Entrepreneurial and ICT Training

Workshop/Seminar

June 2016

Diploma in Data Processing, Desktop Publishing, and Internet Application

Professional Diploma

March 2011 – September 2011
Academics

Education

Academic background and professional affiliations

◆

BSc Computer Science (Second Class Upper 2:1)

Federal University of Agriculture Makurdi

2021
◆

National Diploma Computer Science (Distinction)

Fidei Polytechnic Gboko

2012 – 2014

Professional Membership

Nigeria Computer Society (NCS)

Member

Get In Touch

Let's Connect

I'm always open to discussing new projects, opportunities, and collaborations

Contact Information

Location Abuja, Nigeria
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