Portfolio — Field Notes

Frankline Sable
builds software that lasts.

Software Engineer based in Nairobi, Kenya, working across backend services, full-stack applications, cloud infrastructure and mobile platforms. I've contributed to products reaching 100,000+ users across fintech, health-tech and agri-tech.

5+Years Experience
100K+Users Served
4+Products Contributed To
3Domains — Fintech / Health / Agri
01 / About

Systems-minded, product-focused.

I'm a Software Engineer with experience building production backend, web and mobile systems. At ITalanta / Elewa, I work across application architecture, APIs, cloud integrations and engineering delivery.

I enjoy the engineering problems behind dependable products: clear service boundaries, maintainable code, reliable data pipelines and thoughtful integrations. My experience spans wearable platforms, financial transaction parsing and NFC-enabled systems.

Outside work, I build independent projects including Pesa Radar, an offline-first personal finance app. I also write about software architecture, engineering decisions and lessons from building real products.

Currently
  • Role Senior Full-Stack Engineer
  • Company ITalanta / Elewa
  • Focus Backend · Full-Stack · Cloud
  • Based in Nairobi, Kenya
  • Interests Backend · Full-Stack Engineering
02 / Experience

Career timeline

Jan 2022 — Present · Nairobi, Kenya

Senior Full-Stack Engineer — ITalanta / Elewa

Build and maintain production mobile and backend systems across health-tech and agri-tech. Work with Flutter, Python/FastAPI, Firebase and GCP data pipelines; integrate wearable platforms, support app releases, review code and mentor developers.

Sep 2021 — Jan 2022 · Nairobi, Kenya

Full-Stack Engineer — Savanna Dot Net

Shipped web applications end-to-end with Laravel and PHP, and native Android apps extending the company's platform. Integrated blockchain and fintech features, including NFT support and a trading module.

Jan 2020 — Aug 2021 · Nairobi, Kenya

Full-Stack Engineer — Techxers Kenya Ltd

Delivered production websites and Android apps across multiple client projects using Laravel, Node.js, React, and Flutter. Mentored a team of four junior developers.

Nov 2019 — 2022 · Nairobi, Kenya

Co-Founder & Lead Developer — Creators Galaxy Inc

Built the backend engine and led development for mobile games (Anarchy, Grudge Guess) using C#, Unity, and SQLite.

03 / Selected Work

Different domains. The same engineering mindset.

From offline-first finance tools to wearable integrations and agricultural platforms, my work focuses on building dependable software around real-world constraints.

Fintech

Pesa Radar

Personal finance · Independent project
  • Offline-first architecture (domain/application/infrastructure layers) with Firestore sync and Hive local storage.
  • Encrypted, checksum-verified (SHA-256) cloud backup with chunked Firestore writes for large payloads.
  • Custom named-group regex engines to parse automated SMS transaction alerts across multiple banks.
FlutterFirestoreHiveBLoC
Health-Tech

Smart Running

Running and wearable platform · Elewa
  • Developed runner onboarding, training calendars and activity insights in Flutter.
  • Integrated wearable activity data and training-plan delivery with Python/FastAPI backend services.
  • Supported release readiness, permissions, and reliability improvements across iOS and Android.
FlutterTerra APIGCPFastAPI
Agri-Tech

FarmBetter

Elewa · Engineering team
  • Multi-platform agri-tech solution serving 100,000+ farmers and extension agents across 10+ countries.
  • Flutter mobile app, Angular web app, and a shared GraphQL/Firebase backend.
  • Built for low-connectivity regions — resilience over raw feature count.
FlutterAngularGraphQLFirebase

MyBlueprint — ITalanta Elewa

Cross-platform habit-tracking and goal-setting app, live on iOS and Android with 30,000+ users.

FlutterNode.jsFirebaseSwiftKotlin
04 / Spec Sheet

Technical skills

Languages
DartPythonTypeScriptJavaScriptPHPC#
Mobile & Frontend
FlutterAndroid SDKReactAngularBLoCResponsive UI/UX
Backend & Cloud
Python / FastAPINode.jsLaravelGraphQLREST APIsFirebase
Databases
PostgreSQLMySQLSQLiteFirestoreHive
Specialized
Terra V2 APIHealth IntegrationsRegex Parsing EnginesNFC / IoT
Architecture & Ops
Clean ArchitectureSystem DesignCI/CDDockerGitTerraformGCPApache Beam / DataflowBigQuery
05 / Contact

Let's build something that stays up.

Interested in backend, full-stack and cloud engineering opportunities. Based in Nairobi, Kenya, and open to remote roles and relocation opportunities.

Drawing No.FO — 2026 — 03
Scale1 : 1, responsive
LocationNairobi, Kenya
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