Affan Tech AcceleratorI ship backend systemsthat actually scale.
Sole architect of Sitepat — a customer-facing banking app with 10K+ downloads. Specialized in Go (Golang) microservices and high-throughput distributed systems.
Faisal Affan's real GitHub activity graph showcases high daily contribution consistency in building and maintaining robust backend systems.
Verified aggregate downloads across Google Play Console & App Store for managed SaaS products, mobile ERPs, and e-commerce platforms.
Real-time server operational status monitored via BetterStack/UptimeRobot over the last 30 days, maintaining strict enterprise SLA.
Actual high-performance distributed microservices topology actively running on a production-grade Kubernetes cluster.
Deeply dedicated to backend systems engineering since teens, continuously evolving as a professional architect.
Hot Highlights
Real-time signals from my workspace — active repositories, open-source contributions, and recently published articles.
infra-light
Currated Light Consume Spec And High Throughput Infrastructure That Faisal Affan Used
fix(tools): add PathGuard to prevent path traversal in write_file/delete_file
Merged pull request to open-source repository ahmadrosid/tinyclaw.
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Results-driven engineer.
9+ years of production systems that actually scale.
I specialize in backend systems and platform engineering, with broad generalist capabilities across full-stack, mobile, DevOps, and AI. Over the past 9+ years, my work has spanned regulated banking BTPN Syariah, industrial IoT Petrosea, and insurtech IAG — environments where uptime and reliability are critical.
I own the entire execution loop — from data model and backend to infra and deployment. Key highlights:
- Core banking backends serving 4.1M active customers.
- Geospatial pipelines processing 50K telemetry events/sec.
- AI-powered SaaS with text-to-SQL and demand forecasting.
I bridge business goals and technical execution — translating compliance and merchant requirements into cost-efficient, auditable systems and automated CI/CD pipelines.
I've shipped core banking for 4.1M users, real-time IoT for a mining fleet, and production AI — solo, on deadline, zero data loss.
AI-Native, Human-Guided
I leverage AI systems to automate boilerplate, write unit tests, and accelerate development speed.
Core database design, security models, performance optimization, and final deployment remain 100% human-crafted.
High-throughput APIs, event-driven systems, core banking infra
React dashboards, D3.js data viz, fintech & insurtech UIs
RAG pipelines, LLM orchestration, text-to-SQL, agentic systems
Kubernetes, Terraform, LGTM observability, AWS certified
PostGIS, real-time geofencing, tile services, IoT telemetry
On-chain data indexing, chain reorg handling, DeFi pipelines
Credit scoring pipelines, LGTM stack, model monitoring
Flutter/Dart, multi-provider AI SDK published on pub.dev
End-to-end ownership: DB → API → UI → infra → ship
Playwright, Jest, end-to-end testing infrastructure
Selected Work
A few things I've built and shipped.
Sitepat
Customer-facing mobile banking app with 10K+ downloads.
- •Sole architect designing the API Gateway, secure core banking integrations, and transaction processors.
- •Successfully bridged modern microservices APIs to legacy core banking via a custom ISO 8583 bridge.
- •Stack: Go, Flutter, SQL Server, Redis, and Firebase Cloud Messaging (FCM).
claudio
Dart and Flutter SDK for the Anthropic Claude API.
- •Created open-source package to bridge the gap in the Dart ecosystem for Anthropic API access.
- •Features complete type-safety, streaming support, and context window helper methods.
- •Stack: Dart, Flutter.
feyshall-adk-labs
Open-source Google ADK cookbook.
- •A collection of integration recipes ranging from beginner setups to enterprise-level hardware controls.
- •Uses Dart as the primary development differentiator.
- •Stack: Google ADK, Dart.
Gedoong
Real estate CRM and deal management system.
- •Build end-to-end CRM with drag-and-drop lead pipelines, customer logs, and transaction status.
- •Active live deployment with optimized database indexing and sub-second querying.
- •Stack: Next.js, TypeScript, PostgreSQL.
Open Source
Contributions to projects used by millions — and libraries I maintain.
Merged Contributions
External validation of code quality and systems engineering.
ollama/ollama
Nil pointer guard fix in HTTP client handler (PR #16201, merged) — standard package used by millions of local AI users.
View PRstdlib-js/stdlib
Optimized implementations of incremental running statistics calculators (@stdlib/stats/incr/nanminabs).
View PRMaintained Tools
Libraries, utilities, and developer templates built for the community.
claudio
Robust, fully-typed Dart and Flutter SDK for the Anthropic Claude API. Supports streaming, tool calling, and multi-modal inputs.
View Codefeyshall-adk-labs
Google ADK communication recipe cookbook and serial link bridge boilerplate for Dart developers. Beginner to enterprise patterns.
View CodeCukupGak?
Lightweight financial tracking and forecasting script that calculates runway limits based on dynamic burn rates.
View CodeChainNusa
Blockchain utility toolkit for Indonesian developers — simplifying web3 integration patterns with local context.
View CodePublished Apps & Extensions
Apps shipped across major developer platforms — extensions, mobile & desktop.
Skills & Expertise
Specialized in backend & platform engineering, with secondary generalist capabilities spanning full-stack, mobile, DevOps, and AI.
"Programming languages are merely tools — a craftsman is not defined by their hammer, but by the structures they build. What endures is systems thinking, architectural judgment, and the problems you solve along the way."
Backend
Frontend
AI / LLM
DevOps / SRE
Geospatial
Web3
MLOps / Data
Mobile
Fullstack
QA / SDET
Languages
Databases
Protocols & Formats
Cloud & Infra
Security
Soft Skills
Tools & Workflow
Experience
Professional track record in fintech, mining IoT, and insurtech.
Back End Developer — Tepati
BTPN SyariahSole backend engineer responsible for 2 mission-critical banking products serving 4.1M+ customers and 5,000+ field officers. Built entire backend solo in 30 days for Project Tepati (Offline-First Micro-Finance Platform).
- Cut bandwidth usage by 78% with a custom delta sync protocol
- Reduced form update cycle from 2–3 weeks to real-time
- Slashed loan approval from 7 days to under 24 hours
- Dropped calculation error rate from 18% to 0.1%
Back End Developer — Sitepat
BTPN SyariahSole architect and backend developer for customer-facing mobile banking app — 10K+ downloads. Designed the API Gateway, Core Banking integration, security middleware, and notification engine.
- Bridged modern REST APIs to 1987-era Core Banking via custom ISO 8583 Bridge
- 99.7% uptime during scheduled Core Banking maintenance windows
- Reduced late payments from 15% to 4%
- Passed OJK penetration test with zero findings
- Cut balance inquiry time from 30 min to under 2 seconds
Front End Developer — Prospera
BTPN SyariahFrontend engineer for Prospera — next-gen Core Banking dashboard revamping Temenos T24 into a modern stack. Used by tellers, loan officers, and business teams across ~2,000 branches processing ~1M transactions/day.
- Migrated 6+ legacy T24 workflows into a unified Vue.js SPA
- Built reusable component library adopted across multiple squads
- Delivered companion React Native app for field officers
Flutter Developer
PT Harmoni Panca UtamaBuilt the mobile and frontend layer of an edge-to-cloud mining platform managing hundreds of heavy units across 3 mine sites in Kalimantan.
- Tracked heavy units live with real-time GPS rendering on Mapbox GL
- Caught 3 fuel thefts (650L) via algorithmic fuel monitoring UI
- Slashed safety incident reporting from 24–48 hours to under 30 minutes
- Unified 3 mine sites into a single real-time command dashboard
Software Engineer — IAG Cybera360
Kano Solution · IAGTransformed a manual, paper-based cyber insurance underwriting process into an end-to-end digital platform for SMEs across Asia Pacific.
- Built interactive risk visualization dashboard (D3.js, Nuxt.js)
- Developed Cyber Risk Scoring Engine in Go
- Reduced assessment questions from 100+ to under 30 via adaptive questionnaire
- Integrated third-party APIs (UpGuard, Acronis, RHCS)
Software Engineer — Petrosea Minerva
Kano Solution · PetroseaEdge-to-cloud IoT platform processing 50,000 sensor events/second. Replaced manual radio-based mine operations with an automated digital platform.
- Scaled ingestion 10× (5K → 50K events/sec) at <50ms latency
- Eliminated duplicate data from 18% to <0.01% via Bloom Filter & Redis
- Cut geofence breach detection from 5–15 min to <2 seconds
- Reduced unplanned downtime 64% via predictive maintenance engine
Internship Trainee — Big Data
EACIIT (Big Data & Digitisation)3-month intensive boot camp in enterprise-grade big data engineering.
- Built ETL data processing modules in Go
- Developed interactive web-based reporting dashboards
- Designed MongoDB aggregation pipelines
Founder & Software Engineer
Affan TechnologyIndependent engineering consultancy delivering end-to-end applications and cloud infrastructure for paying clients across Indonesia.
- Delivered production apps (Next.js, Nuxt.js, Go, Laravel)
- Shipped cross-platform mobile apps (Flutter, React Native)
- Managed multi-cloud clusters (AWS, GCP, DO) via GKE & Istio
- Hardened infrastructure security with HashiCorp Vault
- Built automated CI/CD pipelines (GitHub Actions, GitLab CI, Jenkins)
Professional Certifications
Validated cloud architecture, infrastructure as code, and DevOps engineering competencies.
AWS Solutions Architect Associate
Amazon Web Services (AWS)
Validates expertise in designing distributed systems on AWS — covering multi-account architecture, secure VPC networking, cost-optimized compute and storage, and high-availability patterns.
- Multi-account AWS architecture & VPC networking
- High-availability & fault-tolerant design
- Cost optimization & right-sizing strategies
Docker CI/CD
Udemy
Covers end-to-end CI/CD pipelines with Docker — containerizing applications, automating builds, multi-stage Dockerfiles, and integrating with GitHub Actions for continuous deployment.
- Docker containerization & multi-stage builds
- Automated CI/CD pipelines with GitHub Actions
- Image optimization & security best practices
Awards & Speaking
Honored for technical excellence and active contributions to the developer ecosystem.
Awards & Honors
1st Place Most Productive Squad Member
Ranked #1 developer in the Customer Facing App tribe for outstanding productivity, code quality, and consistent delivery across multiple sprint cycles.
Speaking & Talks
Golang Speaker
Invited as a Golang speaker at Digital Loung Telkom Malang, Indonesia — sharing practical insights on Go programming, concurrency patterns, and production best practices with the local tech community.
Academic Journey
Formal engineering foundations and continuous academic upgrades.
STMIK Pradnya Paramita
Bachelor of Computer Science (B.Comp.Sc.)
Focused on advanced software engineering, database management systems, cloud computing architectures, and enterprise systems analysis.
BINUS University
Associate Degree in Information Technology
Specialized in practical web development, computer networking, relational database configurations, and operating system fundamentals.
Vocational High School (VHS)
Major in Software Engineering (RPL)
Introduced to fundamental programming concepts, algorithms, web basics (HTML/CSS/JS), and desktop database applications.
Client & Colleague Reviews
Beyond the systems I build, my work is validated by the people I work with. You'll find specific endorsements on my LinkedIn on how I handle technical decisions, communicate under pressure, and deliver complex systems solo — real social proof, not self-promotion.
“I had the opportunity to work with Faisal Affan as our Backend Developer on several projects. From a QA perspective, Faisal consistently delivered clean, well-structured code and collaborated effectively to ensure smooth system performance. He's highly skilled in backend development, quick to respond to issues, and always open to feedback. Faisal's professionalism, problem-solving ability, and teamwork truly reflect the qualities of a mid–senior level engineer.”
“Faisal is a software engineer who is skilled in both backend and frontend development. He can accurately analyse tasks and deliver work according to the timeline.”
“If you're looking for a Golang Software Engineer who can turn complex challenges into elegant solutions, Faisal is the one! Not only highly skilled in coding, but also a great collaborator who always thinks several steps ahead. Truly a pleasure to work with!”
“I really appreciate Faisal's reliability and professionalism in every task he handles. He always makes a valuable contribution and completes work on time to a high standard. I believe Faisal will be a valuable asset to any team.”
“When I worked with Faisal, he is a person who has many skills and really likes to learn new things. He has good skills, good attitude, and is a reliable person. Keep doing it bro!”
“When I worked with Faisal, he had many skills like Flutter and Python. It really helped me to complete the project with these two programming languages. He explains in a way that is easy to understand and provides many solutions. Good attitude.”
“Being work with Faisal is wonderful — he is a fast learner Software Engineer, very curious about something new, so techy and willing to improve to the next level. This guy gives me many insights while working together.”
“Faisal is a great and faster software engineer. He has a really wonderful experience in programming skills and team work. He always brings excellent results in his work.”
“As a friend of my almamater, Faisal has made me learn a lot from him. He clearly shows good leadership to bring success in all the projects he works on. He is a hard worker, takes initiative, and always happy to help his friends.”
“Faisal is the curious type of person that always eager to learn something new. Has vast knowledge, also reliable colleague. Very nice to have him in our team.”
“Faisal is an excellent resource. He makes sure all the deadlines meet and that also with the highest standards. He is a hardworking and dedicated person who will complete your project in a given time frame.”
“I had the opportunity to work with Faisal Affan as our Backend Developer on several projects. From a QA perspective, Faisal consistently delivered clean, well-structured code and collaborated effectively to ensure smooth system performance. He's highly skilled in backend development, quick to respond to issues, and always open to feedback. Faisal's professionalism, problem-solving ability, and teamwork truly reflect the qualities of a mid–senior level engineer.”
“Faisal is a software engineer who is skilled in both backend and frontend development. He can accurately analyse tasks and deliver work according to the timeline.”
“If you're looking for a Golang Software Engineer who can turn complex challenges into elegant solutions, Faisal is the one! Not only highly skilled in coding, but also a great collaborator who always thinks several steps ahead. Truly a pleasure to work with!”
“I really appreciate Faisal's reliability and professionalism in every task he handles. He always makes a valuable contribution and completes work on time to a high standard. I believe Faisal will be a valuable asset to any team.”
“When I worked with Faisal, he is a person who has many skills and really likes to learn new things. He has good skills, good attitude, and is a reliable person. Keep doing it bro!”
“When I worked with Faisal, he had many skills like Flutter and Python. It really helped me to complete the project with these two programming languages. He explains in a way that is easy to understand and provides many solutions. Good attitude.”
“Being work with Faisal is wonderful — he is a fast learner Software Engineer, very curious about something new, so techy and willing to improve to the next level. This guy gives me many insights while working together.”
“Faisal is a great and faster software engineer. He has a really wonderful experience in programming skills and team work. He always brings excellent results in his work.”
“As a friend of my almamater, Faisal has made me learn a lot from him. He clearly shows good leadership to bring success in all the projects he works on. He is a hard worker, takes initiative, and always happy to help his friends.”
“Faisal is the curious type of person that always eager to learn something new. Has vast knowledge, also reliable colleague. Very nice to have him in our team.”
“Faisal is an excellent resource. He makes sure all the deadlines meet and that also with the highest standards. He is a hardworking and dedicated person who will complete your project in a given time frame.”
“Faisal is amazing at his job! He knows his way around people, he is good with the clients, does whatever it takes to help colleagues and gets things done. Keep it up dude!”
“Faisal is a very reliable and hardworking engineer, he has a high enthusiasm for learning especially new things and I learned a lot from him. Keep it up sal and do the best!”
“I once worked with Faisal Affan in website development. He is patient, agile, and also communicative. Criticism and suggestions are also welcome. His knowledge and ability to develop website was very good and fast. Feeling happy to have worked with him.”
“Faisal is talented engineer. He has the ability to adapt new technology quickly, and always keen to learn new things.”
“I was working with Faisal in the same project at Kano. He is a fast learner, not hesitate to ask or discuss, and has keen eyes on design.”
“When I worked with Faisal, he is a person with many skills and really likes to learn new things. He has good skills for both the front end and the backend side. Good attitude and reliable person. Keep doing your best buddy!”
“As a team member, Faisal is very collaborative and quickly learns new things.”
“As a team member, he is very collaborative in doing tasks according to requirements and he is very flexible when there are new requests from users. Keep doing great!”
“Faisal is a fast learner, he also can make a smart decision.”
“It's always a great experience to be in the same project with Faisal. He's highly skilled both in mobile and web development, with good attitude, helpful, and cooperative.”
“Faisal is amazing at his job! He knows his way around people, he is good with the clients, does whatever it takes to help colleagues and gets things done. Keep it up dude!”
“Faisal is a very reliable and hardworking engineer, he has a high enthusiasm for learning especially new things and I learned a lot from him. Keep it up sal and do the best!”
“I once worked with Faisal Affan in website development. He is patient, agile, and also communicative. Criticism and suggestions are also welcome. His knowledge and ability to develop website was very good and fast. Feeling happy to have worked with him.”
“Faisal is talented engineer. He has the ability to adapt new technology quickly, and always keen to learn new things.”
“I was working with Faisal in the same project at Kano. He is a fast learner, not hesitate to ask or discuss, and has keen eyes on design.”
“When I worked with Faisal, he is a person with many skills and really likes to learn new things. He has good skills for both the front end and the backend side. Good attitude and reliable person. Keep doing your best buddy!”
“As a team member, Faisal is very collaborative and quickly learns new things.”
“As a team member, he is very collaborative in doing tasks according to requirements and he is very flexible when there are new requests from users. Keep doing great!”
“Faisal is a fast learner, he also can make a smart decision.”
“It's always a great experience to be in the same project with Faisal. He's highly skilled both in mobile and web development, with good attitude, helpful, and cooperative.”
Writing
Latest articles on AI, engineering, career strategy, and leadership.
Let's build something.
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