Backend & API Development
The engine behind your app or website
The part users never see: where the data lives, what the rules are, and how other systems are allowed to talk to it.

Photo: moritz320 / Pixabay 
Photo: PublicDomainPictures / Pixabay
Selected work demonstrating this service.
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Delivered 8 Power BI projects with manuals
Delivered 8 Power BI projects with comprehensive manuals, integrating Microsoft Power BI tools with NodeJS API and Python FastAPI for effective data analytics and visualization.
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Directed full‑stack GIS map development
Directed full‑stack GIS map development, overseeing PostgreSQL, Mapbox, ReactJS, and NodeJS to deliver an integrated solution.
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Led 30+ GIS projects from build to support
Led the development, deployment, and support of over 30 GIS projects, demonstrating expertise in PostgreSQL, Bash, Python, JavaScript, GDAL, ArcGIS, PostGIS, and Mapbox technologies.
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Developed a Data Analytics reporting system
Developed a Data Analytics reporting system, increasing quarterly software revenue by 400% through Python‑based PDF reports.
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Migrated the API to Huma v2 at 100% parity
Migrated the HTTP API from Fiber to Huma v2 — 649 paths and 760 operations — reaching and holding 100% parity between the routes the server registers and the OpenAPI description it publishes.
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Set the platform's founding technical decisions
Set the platform's founding decisions in the weeks after the repository opened in November 2025 — the layering, database‑first data access and the zero‑warnings bar — and they still hold nine months on.
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Built a test suite across Go, SQL and browser
Built a layered automated test suite — 981 Go tests, 543 frontend and browser specs, 494 SQL behavioural tests — with mutation testing, property‑based tests and an accessibility gate.
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Built Stripe and in‑app purchase entitlements
Built the payments and entitlements layer — Stripe alongside Apple and Google in‑app purchase — gating the directory, search and export through an 11‑table access model checked on the server.
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Built a loyalty wallet, leagues and badges
Built the loyalty and reputation system — 67 functions over a 31‑table ledger, with leagues, badges and a redemption shop — taking a row lock on the balance to close the double‑spend window.
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Built the social layer: posts, feed and groups
Built the platform's social layer — posts, feed, groups, mentions, a follower graph and an occasions digest — on the same function‑first data layer as the rest of the product.
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Built the hiring and seafarer career workspaces
Built the hiring marketplace and the seafarer career workspace — 151 stored functions across 48 tables — covering vacancies, applications, certificates, rank progression and verified sea time.
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Held the generator to 981 tests and 92% coverage
Held the generator to 981 test cases at a 92% branch‑coverage floor with warnings treated as failures, and asserted idempotence by running the whole build pipeline twice from an empty file and requiring the second pass to change nothing.
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Enabled every linter rule as an error
Selected every rule the Python linter has as an error, working through 1,815 findings to reach zero, with each of the few exemptions carrying a written reason and two of them backed by a checker instead of a comment.
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Adopted Swift 6 strict concurrency over C
Adopted Swift 6 complete strict concurrency with no actors, bridging a blocking C event loop to the main actor through one producer, one consumer and one ordering — after establishing that a task per event loses the ordering the interface depends on.
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Wrote a parser verifying every FFI call
Wrote a parser that reads the real 7,308‑line C header and verifies every call site, every enum constant and that every pointer‑owning class is final, after a hand‑written placeholder header let calls to three removed functions compile, link and crash.
If this is the work you need done, the next step is a conversation.
Tell us the problem and we will tell you honestly whether we are the right people.

