Oluwaloseyi Adeleye

Backend & Blockchain Engineer | APIs, Payments, Solana

Lagos, NG.

About

Accomplished systems and blockchain engineer specializing in high-throughput APIs, transactional financial pipelines, and secure Solana infrastructure. Expert in the full backend lifecycle, spanning event-driven service architectures, Web3 smart contract authoring, and high-concurrency database design with a track record of scaling decentralized payment gateways and high-concurrency enterprise microservices.

Work

Motormata

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Backend Engineer

Lagos, Lagos, Nigeria

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Summary

Orchestrated backend architecture for a logistics and insurance platform, upgrading legacy applications and launching new products to boost efficiency and expand regional service offerings.

Highlights

Refactored and optimized a legacy 8-year-old PHP codebase for the BPMS project, embedding new business logic with zero-downtime backward compatibility.

Spearheaded SureClaim, an end-to-end insurance claims system, controlling multi-stage processing, tracking, and validation workflows.

Designed and rolled out Betamoni, a loan origination microservice that streamlined financing access for emerging businesses.

Maintained and scaled Agentpro, a headless vehicle insurance platform, simplifying acquisition funnels across multiple regional insurance providers.

Deets Finance (Contract)

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Web3 & Backend Engineer

Lagos, Lagos, Nigeria

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Summary

Designed and scaled multi-chain Web3 infrastructure for a fintech platform, optimizing non-custodial wallet operations and transactional monitoring to reduce overhead.

Highlights

Architected secure multi-chain infrastructure spanning Solana and EVM chains (Ethereum, Base, BSC, Polygon) to handle wallet operations and transaction tracking.

Scaled concurrent wallet generation to accommodate 500,000+ addresses, utilizing Redis caching to eliminate key-generation collisions.

Refined automated token-sweeping logic from user accounts to master vaults, incorporating dynamic fee schedules to slash gas overhead.

Implemented a lightweight, webhook-driven event listener that reduced server resource costs while maintaining constant updates across half a million active wallets.

Novoinno (Supply Chain and Logistics Platform)

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Founding Software Engineer

Lagos, Lagos, Nigeria

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Summary

As founding engineer, established the core API infrastructure and asynchronous event handlers for a supply chain platform, processing 15k+ daily events for hundreds of commercial users.

Highlights

Constructed high-throughput REST APIs and asynchronous worker queues, processing 15,000+ daily supply chain status updates for over 500 businesses.

Structured event-driven webhook relays for logistics tracking, reducing manual partner inquiries and customer service overhead by 40%.

Enforced granular, role-based access control (RBAC) and OAuth flows supporting multi-tenant operations across 5 international regions.

Engineered comprehensive integration test suites and automated API mocking, reducing production regression issues and accelerating development velocity by 36%.

Cercu (Blockchain-Integrated Financial System, Contract)

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Smart Contract & Backend Engineer

Toronto, Ontario, Canada

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Summary

Authored Solana programs and engineered zero-knowledge proof verification for a decentralized banking protocol, enhancing user privacy and reducing transaction friction.

Highlights

Authored secure Solana programs using the Anchor framework, powering automated ROSCA (savings) pools for dozens of peer groups.

Created a tokenized (NFT-based) membership transfer mechanic, allowing users to swap participation slots and cutting coordination friction by 30%.

Deployed Zero-Knowledge Proof (ZKP) verification routines, permitting private financial credential validation without exposing on-chain identifiers.

Brilstack (B2B Recruitment Platform)

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Systems Engineer

Lagos, Lagos, Nigeria

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Summary

Engineered scalable data pipelines and integrated complex external integrations for an enterprise recruiting platform, accelerating applicant intake.

Highlights

Optimized multi-threaded CSV ingestion pipelines to parse tens of thousands of customer profiles concurrently, reducing enterprise onboarding friction.

Consolidated disparate external Applicant Tracking System (ATS) endpoints into a unified API ingestion layer, smoothing data migration.

Partnered with Machine Learning teams to pipe parsed resume metadata into ranking algorithms, saving hours of manual candidate screening.

Volunteer

Lead

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Google Developers Group on Campus

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Led a campus-based developer community, organizing events and fostering collaboration among students interested in Google technologies at Olabisi Onabanjo University.

Backend Lead

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Google Developers Student Club

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Led backend development initiatives and mentorship for student developers, fostering skill growth and project collaboration within the Google Developers Student Club.

Education

Olabisi Onabanjo University

Ago-Iwoye, Ogun, Nigeria
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Bachelors Computer Engineering

Languages

English

Skills

Programming Languages

TypeScript, JavaScript, Python, PHP, Rust.

Frameworks & Libraries

Node.js Express, Django, Laravel, Viem (EVM), Solana/Kit, Anchor, Solana Web3.js, Solana-spl.

Databases

PostgreSQL, MongoDB, MySQL, Redis.

Cloud Platforms

AWS, DigitalOcean.

Blockchain & Web3

Solana, EVM, Smart Contracts, ZKP Verification, ROSCA Pools, Non-Custodial Payment Gateways, On-chain Transactions, Token Transfers.

Fintech & Payments

Payment Pipelines, Real-time APIs, Fintech Payment Gateways.

System Design

API Design, Event-Driven Architecture, Scalable Systems, Microservices.

Projects

Avo – Solana P2P Payment App

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Summary

Mobile-first payment system allowing users to send crypto using simple account numbers instead of wallet addresses, supporting real-time P2P transfers on Solana.

Atlantis - Stablecoin Payment Infrastructure

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Summary

Non-custodial payment gateway enabling 100+ businesses to accept USDC/USDT payments on Solana, processing thousands of transactions daily.

Paade - Local Service Discovery and Booking Platform

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Summary

Location-based service discovery platform connecting users with 50+ nearby service providers in real time.