Lucky Fernanda Rachman — Senior Software Engineer (Full-Time & Consulting)

01. Case Studies

Featured Engineering Projects

Real-world production architectures solving high-stakes challenges.

Clean Energy / US Solar2023 – 2026

merdeka.app — US Solar Acquisition CRM & Telematics

Senior Backend Engineer

Architected high-throughput NestJS microservices with polyglot databases (MariaDB & MongoDB), real-time WebSockets, in-app team chat, and AWS S3 document pipelines for US solar sales teams.

Solution:

Built modular NestJS microservices pairing MariaDB for strict financial transactions with MongoDB for polymorphic survey metadata. Implemented bi-directional WebSockets with Redis Pub/Sub for live deal stages and an in-app real-time chat engine. Automated document ingestion via AWS S3.

Impact:

Successfully engineered a high-scale enterprise CRM mastering complex multi-state US sales operations—orchestrating zero-loss financial pipelines, sub-second (< 1s) real-time event synchronization, and high-velocity field collaboration engines powering thousands of daily deal closures.

NestJS/TypeScript/MariaDB/MongoDB/Redis/WebSockets/AWS S3/Docker

Web3 / DID / AI Agents2022 – 2026

UPBOND — Web3 Identity & Autonomous AI Agents

Software Engineering Consultant

Led multi-phase technical transformations across no-code CRM automation, Login 3.0 Web3 SSO, and AI Agent architectures for tier-1 Japanese enterprises.

Solution:

Spearheaded three generational architectures: a visual campaign automation engine, Login 3.0 (sovereignty-based Web3 SSO), and autonomous AI agent workflows. Built comprehensive End-to-End (E2E) automation test suites with Playwright to validate critical authentication flows and eliminate regressions. Engineered 'Gohey' (GOヘイ！ construction industry DX & smart attendance platform for Kajima Corporation), deployed Web3 wallet & ticketing infrastructure for TicketMe, enterprise solutions for Hankyu Hanshin, APA Hotel, Botejyu, Seiko, Lotte, and a 6-month PoC gaming prototype with SEGA.

Impact:

Single-handedly rescued company cash flow from severe operational deficit into revenue realization by delivering complex UAT sign-offs on schedule.

NestJS/Node.js/Aurora MySQL/PostgreSQL/AWS & GCP/Web3/EVM/AI Agents/Playwright (E2E)/Terraform

Crypto Trading & Asset Mgmt2022 – 2023

Nobi — High-Concurrency Crypto Trading Settlement

Senior Backend Engineer

Re-engineered legacy backend microservices from Laravel into Golang, slashing latency by 30% and executing trade transactions in under 4 seconds.

Solution:

Re-architected core trading microservices in Golang to leverage lightweight goroutine concurrency. Designed encrypted event-driven queues with RabbitMQ and integrated New Relic APM alongside Kibana log analytics for end-to-end observability.

Impact:

Cut system latency by 30%, sustained sub-4-second transaction settlements, and guaranteed 99.99% uptime during peak crypto market volatility.

Golang/RabbitMQ/Microservices/MySQL/Docker/New Relic/Kibana

Manufacturing & Logistics2019 – 2021

Merak Jaya Beton — IoT Fleet Telematics & Enterprise ERP

Software Engineer

Developed a complete Oracle-backed ERP, engineered IoT telematics bridges for digital weighing scales and GPS tracking, and built 4 Android apps from scratch.

Solution:

Built a unified enterprise ERP on Oracle Database. Developed C# .NET and Java hardware bridges for real-time digital scales and fleet GPS tracking with fuel estimation and speeding alerts. Published 4 Android apps from scratch featuring Geofencing and Face Biometrics.

Impact:

Automated end-to-end workflows from physical truck weighing to computerized customer invoicing, drastically reducing ledger discrepancy and improving fleet dispatch velocity.

Java/Android MVC/PHP/Laravel/C# .NET/Oracle DB/Docker/IoT Hardware/Face Detection

02. Career Journey

Work Experience

8+ years delivering impact across international and enterprise environments.

UPBONDJan 2022 – Oct 2026 • 4 yrs 10 mos

Software Engineering Consultant

Remote (Tokyo, Japan) • Results-Driven Consultant

Architected foundational Web3 identity, AI agents, E2E test automation, and enterprise integrations across AWS and GCP multi-cloud infrastructure.

—Delivered crucial UAT sign-offs under aggressive deadlines, securing client milestone payments and turning around operational cash flow from deficit to profitability.
—Engineered robust End-to-End (E2E) automation test suites using Playwright, automating regression testing across decentralized identity flows, Web3 SSO logins, and client portals to guarantee release reliability.
—Automated enterprise multi-cloud infrastructure across AWS and GCP using Terraform and CloudFormation (IaC), orchestrating containerized workloads on AWS ECS and GCP Cloud Run behind ALBs.
—Hardened security using Google Cloud Armor WAF, GitHub Actions CI/CD pipelines, and proactive incident alerting systems.
—Partnered with top Japanese enterprises: engineered 'Gohey' (GOヘイ！ construction DX & smart attendance application for Kajima Corporation), integrated Web3 wallet infrastructure for TicketMe NFT ticketing platform, delivered Web3 campaigns for Hankyu Hanshin, digital check-in for APA Hotel & MIMARU Hotel, Web3 POS for Botejyu, luxury NFT verification for Seiko, Wako, Lotte, and a 6-month PoC gaming prototype for SEGA.

Node.js/NestJS/Playwright (E2E)/Terraform/CloudFormation/AWS ECS/GCP Cloud Run/Cloud Armor/Web3/AI Agents/n8n

PT. NUSA VENTURA PUTRANov 2023 – Aug 2026 • 2 yrs 9 mos

Senior Backend Engineer

Remote (US Client Delivery) • Contract Engineering

Architected backend microservices for merdeka.app, an enterprise solar customer acquisition CRM platform for the United States market.

—Designed polyglot persistence architecture combining MariaDB (contracts & commission ACID transactions) with MongoDB (unstructured lead intake and survey metadata).
—Engineered real-time WebSocket messaging and Redis Pub/Sub, enabling live sales pipeline transitions, lead dispatching, and sales leaderboards.
—Built an in-app real-time Chat Engine using WebSockets and MongoDB for instant communication between field sales reps and project coordinators.
—Championed zero-bug engineering discipline, automated AWS S3 document ingestion pipelines, and maintained sub-second API latencies during peak US business hours.

NestJS/TypeScript/MariaDB/MongoDB/Redis/WebSockets/AWS S3/Docker

Nobi (PT Enkripsi Teknologi Handal)Sep 2022 – Mar 2023 • 7 mos

Senior Backend Engineer

Remote (Jakarta, Indonesia) • Full-Time

Re-engineered core crypto trading microservices from Laravel into Golang, optimizing transaction throughput and memory capacity.

—Migrated high-throughput trading microservices from Laravel to Golang, leveraging lightweight goroutines for high-concurrency operations.
—Slashed transaction turnaround latency by 30%, consistently executing trade settlements in under 4 seconds (< 4s).
—Engineered asynchronous event-driven messaging pipelines using RabbitMQ for decoupled order state transitions.
—Established system-wide observability by integrating New Relic APM and Kibana centralized log analytics with automated incident alerts.

Golang/RabbitMQ/Microservices/MySQL/Docker/New Relic/Kibana

KryptoPOSJul 2021 – Jan 2022 • 7 mos

Software Engineer

Hybrid (Jakarta, Indonesia) • Full-Time

Executed ground-up revamp of POS backend APIs in Laravel and backoffice web portal in Next.js.

—Rebuilt core backend RESTful APIs using Laravel and created a modern, responsive backoffice admin dashboard with Next.js in 7 months.
—Managed cloud deployments on AWS behind Elastic Load Balancers (ELB) to guarantee high availability and automated traffic distribution.
—Engineered high-throughput endpoints for POS retail transactions, inventory updates, and merchant authentication.

Laravel/Next.js/React/AWS ELB/MySQL/Docker/REST APIs

PT. Merak Jaya BetonAug 2019 – Jul 2021 • 2 yrs

Software Engineer

On-site (Surabaya, Indonesia) • Full-Time

Developed enterprise ERP on Oracle Database, engineered IoT hardware telemetry, and built 4 Android mobile apps from scratch.

—Built and deployed 4 production Android applications from scratch (Java MVC), including smart attendance with Geofencing and Face Biometric detection.
—Engineered IoT telematics pipelines using C# .NET and Java, integrating digital weighing bridges and GPS modules to track mixer speed, fuel estimates, and driver status.
—Digitized manual manufacturing and commercial workflows across batching plants, logistics, inventory, billing/invoicing, and HRIS into an integrated Oracle ERP.

Java/Android MVC/PHP/Laravel/C# .NET/Oracle DB/IoT GPS/Face Detection

FUTURAXOct 2018 – Apr 2019 • 7 mos

Back End Developer

Remote (Surabaya, Indonesia) • Full-Time

Developed backend microservices for a cryptocurrency spot trading platform.

—Developed core trading microservices using Ruby on Rails and PostgreSQL.
—Implemented encrypted, asynchronous event-driven messaging with RabbitMQ for reliable order state sequencing.
—Delivered and launched the entire trading platform into public live beta mode within an aggressive 6-month timeline.

Ruby on Rails/RabbitMQ/PostgreSQL/Microservices/WebSockets

03. Technical Matrix

Skills & Technologies

Pragmatic, battle-tested toolset honed across 8+ years of production engineering.

Frontend & Mobile Engineering(8)

React/Next.js/TypeScript/Tailwind CSS/HTML5 / Modern CSS/Android SDK (Java)/Responsive UI/UX/State Management

Backend & Distributed Systems (Core Strength)Core Strength(8)

NestJS/Golang (Go)/Node.js/Laravel (PHP)/Ruby on Rails/Microservices Architecture/Event-Driven & RabbitMQ/WebSockets & Real-Time APIs

AI Agents & Automation(8)

Autonomous AI Agents/Code with AI Assist/LLM Integration (OpenAI, Claude, Gemini)/Prompt Engineering/Tool & Function Calling/n8n Workflow Automation/RAG & Vector Search/AI Campaign Engine

Databases & Polyglot Persistence(6)

PostgreSQL/AWS Aurora/MySQL/MariaDB/MongoDB/Redis (Caching & Pub/Sub)

Cloud, DevOps & Testing(9)

Terraform/AWS CloudFormation/AWS (ALB, ECS, EC2, ELB, S3)/GCP (Cloud Run, Cloud Armor)/Docker/GitHub Actions/Playwright (E2E)/New Relic APM/Kibana (ELK)

Architecture & Enterprise Domains(6)

Full-Stack Architecture/High-Concurrency Fintech/Web3 & EVM Wallets/Decentralized Identity (DID)/IoT Hardware Telematics/Clean-Tech & Solar CRM

04. Engineering Philosophy

About Lucky Fernanda Rachman

I am a Senior Software Engineer and Engineering Consultant with over 8 years of production experience delivering end-to-end full-stack solutions, with deep specialization in high-concurrency backends, real-time event-driven architectures, and Web3/AI infrastructure. While possessing versatile full-stack capabilities—spanning responsive Next.js/React user interfaces and native mobile apps—my core architectural strength lies in heavy-lifting distributed backends, data integrity, and high-throughput systems. From architecting decentralized identity platforms and AI agents for enterprise brands in Tokyo to scaling mission-critical solar acquisition CRM systems for clients in the United States, my engineering philosophy is rooted in high agency, pragmatic simplicity, and measurable business impact.

Whether it involves slashing transaction latency by 30% through Golang migrations, engineering hardware IoT telematics pipelines, or rescuing operational cash flow by delivering complex enterprise client requirements under intense deadlines, I thrive as a hands-on problem solver who bridges business objectives with resilient, zero-bug software. By embracing modern AI-assisted engineering methodologies (coding with AI assist & agentic workflows), I compound shipping velocity while maintaining uncompromising code craftsmanship.

01 / Agency

Full ownership from architecture to client delivery.

02 / Discipline

Strict contracts, test coverage, and edge-case defense.

03 / Impact

Real-world throughput, cost efficiency, and uptime.

Crafted with clean code, AI-assisted engineering, Astro & Tailwind. Zero bloat. 100% Performance.