Enoobong – Spring Boot, Java, SQL, experts in Lemon.io

Enoobong

From France (UTC+2)flag

Tech lead
Back-end Web Developer

Enoobong – Spring Boot, Java, SQL

Enoobong is a senior backend engineer and technical lead with 9 years of experience in fintech and web3, specializing in Java, Spring Boot, and distributed systems. He demonstrates strong expertise in event-driven architecture, microservices, and database design, with a proven track record in high-impact payment and crypto platforms. Screenings confirm clear stakeholder communication, autonomy, and a product-first mindset. He is recommended as a senior Java/Spring engineer with deep domain knowledge in payments and transaction systems.

9 years of commercial experience in
Cryptocurrency
Fintech
Web3
Main technologies
Spring Boot
1 year
Java
9 years
SQL
4.5 years
AI-assisted coding
1 year
Spring
1 year
Microservices
1 year
Distributed Systems
1 year
Dependency Injection
1 year
NoSQL
1 year
Additional skills
AWS
BigQuery
Blockchain
Typescript
MongoDB
MySQL
Node.js
Kotlin
Docker
JavaScript
Kubernetes
Angular.js
GCP
Jenkins
DevOps
Gradle
CI/CD
Java EE
Google App Engine
Figma
Direct hire
Possible
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Experience Highlights

Technical Lead - Onboard, Brunch
Dec 2021 - Ongoing4 years 10 months
Project Overview

A financial platform for onchain businesses and users in emerging markets, providing access to fiat and crypto financial services through a unified experience. The product included identity verification and KYC, virtual USD accounts, virtual cards funded with crypto, fiat-to-crypto and crypto-to-fiat transactions, payment provider integrations, and back-office tools for operational teams.

Responsibilities:
  • Worked as a Product Engineer across backend and integrations, owning financial and compliance workflows end-to-end, including KYC onboarding, multiple payment and banking provider integrations, and transaction flows connecting fiat and crypto rails.
  • Led an agile team of 5 engineers building the Onboard Payment Network (OPN), an automated crypto-to-fiat payment and settlement infrastructure integrating multiple liquidity and payment providers for high-throughput, multi-currency flows.
  • Owned the end-to-end development and integration of virtual USD card and account services, meeting reliability and compliance requirements.
  • Led the technical implementation of EUR and GBP on- and off-ramp rails, expanding regional coverage and cross-border fiat access.
  • Improved onboarding conversion, transaction reliability, and operational efficiency.
  • Partnered with product, business, and executive stakeholders to translate requirements into scalable solutions and deliver high-impact features on schedule.
  • Led the design and development of a crypto-native chat platform from the ground up, enabling token- and NFT-gated content and community access for creators, and delivered a production-grade product used by multiple creator communities.
Project Tech stack:
Java
Spring Boot
Typescript
Node.js
AWS
BigQuery
MongoDB
MySQL
Blockchain
Redis
Claude Code
AI-assisted coding
Kubernetes
Acting Engineering Lead - Bundle Africa
Jun 2021 - Nov 20215 months
Project Overview

A consumer fintech and crypto platform that enabled users across African markets to trade and manage digital assets, make fiat-to-crypto transactions, and access digital payment services. The platform integrated with external payment, banking, and blockchain providers to support secure and reliable financial transactions.

Responsibilities:
  • Served as Acting Engineering Lead, providing technical leadership across the engineering team while remaining hands-on with backend development.
  • Led technical design and architecture decisions, coordinated delivery of critical product features, reviewed code and technical implementations, and mentored engineers.
  • Designed high-level service interactions and explained them to engineers to ensure efficient delivery of business value.
  • Scaled and improved core financial services, integrated external providers, strengthened transaction reliability, and resolved production issues across the platform.
  • Led recruitment of software engineers, doubling the engineering team in 2 months.
  • Streamlined engineer onboarding so new hires understood the systems and made their first PR within a sprint.
Project Tech stack:
AWS
Spring Boot
SQL
Java
Kotlin
Jira
Agile
Clean Architecture
Redis
Blockchain
Typescript
Senior Software Engineer - Bundle Africa
Mar 2020 - Dec 20209 months
Project Overview

A consumer-focused crypto and fintech platform that enabled users to buy, sell, send, receive, and manage digital assets alongside traditional payment methods. The product supported crypto trading, fiat on/off-ramp transactions, wallet services, payments, and account management for users across African markets.

Responsibilities:
  • Worked as a Senior Software Engineer focused on backend systems and financial transaction workflows, developing and maintaining APIs and services for trading, payments, wallets, and fiat-to-crypto transactions.
  • Architected and developed core backend services, including wallets, referrals, anti-fraud, fiat on-ramp and off-ramp, user KYC, identity verification, and vault.
  • Integrated external financial and blockchain providers, and managed relationships with third-party service providers and partners.
  • Improved transaction-processing reliability and performance.
  • Collaborated across product and engineering teams to deliver customer-facing financial features, including KYC and compliance-related workflows.
Project Tech stack:
MySQL
Docker
AWS
Spring Boot
Java
Node.js
SQL
JavaScript
Kotlin
Software Engineer
Mar 2019 - Mar 20201 year
Project Overview

A fintech platform providing digital financial services and payment infrastructure for businesses and individuals, including account management, payments, transfers, and transaction processing. The platform handled high volumes of financial transactions and integrated with external payment and banking services.

Responsibilities:
  • Worked as a Software Engineer focused on backend systems and financial workflows, designing and developing APIs and services for payment and transaction processing.
  • Developed and maintained digital bank and agency banking solutions.
  • Built and deployed a fleet of microservices following best practices on availability, testing, documentation, and security.
  • Integrated external financial providers and improved system reliability and performance.
  • Investigated production issues and optimized database and application performance.
  • Contributed to infrastructure management, web development, and API development.
  • Participated in design and architecture decisions for secure, scalable financial applications and products.
  • Coached junior developers and collaborated with product and engineering teams.
Project Tech stack:
Kubernetes
Jenkins
MySQL
Docker
Spring Boot
Java
SQL
DevOps
GCP
Angular.js
Software Engineer
May 2018 - Feb 20199 months
Project Overview

Connects communities around the world through mobile banking, using blockchain to provide financial services through existing social systems.

Responsibilities:
  • Developed and maintained Android applications, Java EE libraries, and Spring Boot web services with strong emphasis on product management and user experience.
  • Employed software development best practices including testing, code reviews, pair programming, and continuous user feedback.
  • Worked closely with management to ensure products were delivered bug free and on time.
  • Reduced overall APK size by 13% and configured builds to be faster using Gradle.
  • Created unit tests and UI tests for existing classes without tests.
  • Changed HTTP client implementations from legacy to more efficient solutions.
  • Improved performance by identifying memory leaks and reducing memory footprint in the app by 26%.
Project Tech stack:
Java
SQL
Android
Gradle
Kotlin
Spring Boot
Blockchain

Education

2011
Mathematics and Computer Science
High School Diploma. West African Examination Certificate.

Languages

French
Intermediate
English
Advanced

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