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Zainal Aman Shaari

@zainalaman

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Senior application developer with 30+ years building reliable backend and real-time systems.

Malaysia

Message

What I'm looking for

I seek roles where I can design and deliver robust backend and real-time systems, contribute to architecture and tech strategy, and mentor engineering teams in a collaborative, growth-focused environment.

I am a senior application developer with over three decades of hands-on experience designing, building, and maintaining complex applications and real-time systems across telecommunications, logistics, and technology sectors.

My core technical strengths include Golang, C, JavaScript, PostgreSQL, MySQL and Linux, and I regularly develop full-stack solutions using these technologies alongside front-end toolkits like Bootstrap.

I have led engineering and technology teams as Chief Technology Officer and Technical Director, contributed to product planning and R&D, and participated in corporate milestones including an IPO.

As a freelancer and founder-level technology advisor, I deliver production-grade systems such as survey platforms, analytics repositories, eKYC-backed mobile backends, and messaging gateways that emphasize robustness and scalability.

Experience

Work history, roles, and key accomplishments

Current

Full-stack Application Developer

Current

Freelance

Jan 2017 - Present (9 years 5 months)

Designed and developed multiple web and mobile backends using Golang and PostgreSQL, including an online survey platform, survey statistics reporting with Highcharts, election scoresheet repository using JSONB, and an eKYC-enabled mobile backend.

Golang PostgreSQL HighCharts Bootstrap Linux API Development

Current

Shareholder & Director

Current

Possimo Technologies

Jan 2005 - Present (21 years 5 months)

Provided strategic business and technology guidance for company direction and technology selection to support product and service deployment.

technology strategy Business Planning Governance Stakeholder Management Technology Evaluation

Chief Technology Officer

Airocom Technology

Jan 1999 - Jan 2005 (6 years)

Directed R&D, product planning, application development and support, and participated in technology deployment and the company's successful MESDAQ IPO in 2005.

R&D Management Technology Evaluation Team Leadership IPO Readiness

Technical Director

Vertical Matrix

Jan 1997 - Jan 1999 (2 years)

Managed system development and support, led development of TMTouch Touch Messaging Service on HP-UX in C, and managed SMSC support and upgrades for mobile networks.

C++HP UX Messaging Team Management

Senior System Engineer

Celcom

Jan 1994 - Jan 1997 (3 years)

Led development of Wireless Stock Data and DataTAC gateways, implemented GSM SMSC and SMS application gateways, and developed inter-connectivity between DataTAC and GSM for mobile services using C on HP-UX.

C++HP UX DataTAC Wireless Gateways

Analyst Programmer

Kontena Nasional

Jan 1993 - Jan 1994 (1 year)

Redeveloped Accounts Receivable module of Freight Tracking System on HP-UX with Informix using Informix 4GL and provided application support and training.

HP UX Application Support Database Development Training

Data Processing Executive

Survey Research Malaysia

Jan 1992 - Jan 1993 (1 year)

Developed and maintained market research database systems for SRM and clients, and built Windows applications (Paradox) including project scheduling, sampling, and library systems.

Borland Paradox Database Development MS Windows Research Systems Technical Support

Programmer Analyst

Tuah Guard

Jan 1991 - Jan 1992 (1 year)

Designed and developed MS-DOS applications using Turbo Pascal and Turbo Database Toolbox, including invoicing, cashflow, supplier, and management report systems, and provided technical support.

Turbo Database Toolbox MS DOS Application Development Technical Support