Matthew LawSenior Software EngineerSkills

C# / .NET

System Architecture

API & Web Security

Multi-Tenant Design

TypeScript / Node.js

Unit Testing

ExperienceEntelect — Senior Software Engineer (Jan 2024 – Present)

Own backend systems and APIs for client-facing and internal platforms.

Lead multi-tenant, plugin-based architecture design and legacy modernisation.

Implement secure auth patterns (OAuth2/JWT) and reusable libraries.

Mentor engineers and guide architectural decisions in client engagements.

Entelect — Intermediate Software Engineer (Jun 2022 – Jan 2024)

Built reliable backend systems and APIs in C#/.NET.

Contributed to multi-tenant and plugin-based architecture evolution.

Refactored legacy systems to improve maintainability and reduce technical debt.

Worked across the stack using TypeScript and Angular when needed.

Dariel — Mentor (Dec 2021 – May 2022)

Mentored junior engineers through code reviews and technical guidance.

Focused on improving code quality and problem-solving skills.

Helped navigate real project challenges and understand architectures.

Developed skills in constructive feedback and team leadership.

Dariel — Software Developer (Mar 2020 – May 2022)

Delivered backend and full-stack solutions across multiple client projects.

Implemented APIs and integrated external systems.

Worked with REST, gRPC, cloud services, Firebase, and Apache NiFi.

Adapted quickly to new codebases and delivered maintainable solutions.

Securities & Trading Technology — Intermediate Software Developer (Jan 2019 – Feb 2020)

Developed and maintained production financial systems in high-reliability environments.

Implemented new features and improved internal frameworks.

Worked across backend and frontend with C#, SQL, JavaScript, and Angular.

Collaborated with stakeholders to deliver robust domain-specific solutions.

Securities & Trading Technology — Junior Software Developer (Dec 2015 – Dec 2018)

Developed new financial solutions and contributed to internal frameworks.

Worked with C#, SQL, JavaScript, and Angular on financial systems.

Delivered BBO and Custodial solutions for the ZAR X environment.

Gained experience in production system delivery under live constraints.

EducationMicrosoft Certified Software Development Professional (MCSD) — CTU2015.01 - 2015.11Computer Software Engineering — SSir Online School2011.01 - 2014.12IEB National Senior Certificate — St. Dunstan's College2001.01 - 2014.12ScratchpadBlog

Slower Is a Tool. Blocked Is a Dependency. — A friend ran out of AI credits and development stopped. The live site carried on serving customers. The only thing that had failed was the ability to change it.

The Question My Plugin Loader Couldn't Answer — A plugin loader that would happily load anything implementing the right interface, until someone asked what was actually stopping it from loading the wrong tenant's plugin.

The Column That Looked Like Nothing — A TenantId column on every table, filtered on every query, and never once indexed, until scale finally noticed.

LinkedIn

Leadership Doesn't Start With a Title — Ownership scales faster than hierarchy — real leadership shows up in the small, unasked-for moves, not the meetings.

Intent Outlasts Imitation — 'Do not seek to follow in the footsteps of those ahead. Seek what they sought.' Growth isn't copying someone's path — it's chasing the intent behind it.

Debugging Our Mindset — We spend so much time debugging code — but how often do we debug our mindset? Introducing #DeveloperMindset: short reflections on the human side of the craft.

How Long Would It Take to Onboard a New Dev? — One simple question exposes a project's real health — code clarity, docs, tests, naming. The faster someone new gets productive, the stronger the project.

// Senior Software Engineer Portfolio

Matthew_Law

readonly Experience _years = "10+";

I build backend-heavy systems in C# and .NET, and I've been doing it for about 10 years. Most of that has been in fintech, banks and stock exchanges, where things are heavily regulated and expensive to get wrong. Multi-tenant platforms, secure APIs, and a lot of legacy that had to keep running while it got better.

Backend is where I'm most useful, but I don't avoid the rest of the stack. A fair amount of my work has been TypeScript, Node, and Angular when that's what the job needed.

Most of what I know about architecture came from supporting those systems afterwards, not from designing them upfront. I usually end up holding the cross-cutting decisions and mentoring the people around me, whether or not that's my title.

When something surprises me I tend to write it down. That's what the Scratchpad is for.

Contact_Me() Get_CV()

Experience()

Education()

Top_Skills()

Clientele()

Hobbies()

Side_Projects()

Scratchpad()

view_all() →