Hire the Best Java Developers
in Nigeria

Most AI projects break two weeks after delivery. A demo chatbot that hallucinates. An automation that dies on the first malformed input. An AI agent nobody can maintain. The problem isn't the AI, it's that it wasn't built like production software. I'm Fawaz, a senior full stack AI developer with 5+ years in backend and automation engineering. As a Python and Node.js developer, I build AI-powered web apps and SaaS platforms end to end, the LLM/agent layer and the application around it, that actually run in production: clean, maintainable code, real error handling, logging, orchestration, monitoring, and API integration. Not prototypes that fall over the moment a client touches them. That combination, AI model integration plus real software engineering, is what separates something that demos well from the system your business actually runs on. Proven track record 100% Job Success Score, consistent 5-star reviews Workflows tuned to a ~0.1% error rate, 60–80% lower processing cost vs. the manual process A 6-person agency won back 20+ hours/week; a creative agency cut onboarding 60% and hit 3× content output with the same team Work across real estate, legal, accounting, and healthcare, regulated, document-heavy industries where accuracy, auditability, and clean handover matter What I build Full stack web apps & SaaS platforms, from AI SaaS MVPs to production systems: clean, responsive React / Next.js front ends (desktop, tablet, mobile), backends in Node.js, Python (FastAPI / Django), PHP (Laravel), and Go with PostgreSQL, Supabase, and Redis, plus auth, Stripe/subscriptions, webhooks, third-party API integration, Docker, and CI/CD so it ships and stays up. Backend development & APIs — as a Node.js, Python, and PHP/Laravel backend developer / backend engineer, I build scalable REST APIs, custom backends, AI backends, and data pipelines with proper testing, logging, and documentation. LLM applications & AI agents — autonomous and function-calling agents, multi-step orchestration, human handoff, using the Claude API (Anthropic) and OpenAI API with LangChain, AutoGen, and CrewAI. This is LLM and machine learning integration for sales assistants, support agents, and internal ops agents. RAG & knowledge systems — chatbots and assistants grounded in your own documents, databases, and knowledge bases, with vector search, reranking, and hallucination controls — so answers come from your data, not the model's guesses. AI chatbots & voice agents — RAG support chatbots, WhatsApp/Telegram bots, and inbound/outbound voice (Vapi, Retell, ElevenLabs, Deepgram + Twilio) for booking, qualification, and follow-up. AI automation & workflow automation — as an AI automation agency of one, I build n8n, Make, and Zapier workflows for AI lead generation and qualification, CRM and GoHighLevel automation, email and social media marketing automation, document processing, web scraping, and reporting across 400+ apps, including n8n + Supabase builds and Zapier→n8n migrations to cut subscription cost. Prompt engineering & LLM evaluation — as a Claude prompt engineer, I handle prompt design, output testing, and reliability work so the AI stays accurate and on-brand at scale. How I work I communicate clearly in plain English, give you a clear scope and estimated timeline up front, follow best practices, and I'm available for long-term collaboration — not a drop-and-disappear handoff. You describe the process or product; I map the architecture, build it, test against real data and edge cases, and document everything so your team can operate it without depending on me. Send me a message with what you're building, and I'll reply with a clear plan and a fixed price quote.

I'm a backend developer who works across Go, Node.js, Java (Spring Boot), and Python (Django, Flask). I focus on building APIs and backend systems that businesses actually rely on, not demo projects that fall apart under real traffic. Go and Node.js are what I reach for most often, especially for performance-focused APIs and faster builds. But I pick the stack based on what the project actually needs. A big part of what I do is Stripe integration: subscriptions, checkout flows, webhook handling, making sure payments actually go through cleanly instead of silently failing somewhere in the background. Payment bugs are some of the most frustrating issues a business can face because they cost real money when they go wrong. I test that part properly before handing anything over. I trained through Semicolon Africa, a rigorous backend-focused program here in Nigeria. Since then I've built across a range of projects and stacks. One example is MedChain, a patient records system I designed for hospitals dealing with disorganized paper records. It handles offline access, document summarization, and QR-based patient IDs. Working on that forced me to think about system design under real constraints like unreliable internet, not clean tutorial conditions. On the database side I work with PostgreSQL, MySQL, and MongoDB depending on the project. I'm comfortable designing schemas from scratch or untangling ones that have gotten messy over time. I also take on WordPress and WooCommerce work when that's genuinely the right tool for the job. Not every business needs a custom-built backend. If you're not sure whether your project fits what I do, message me before ordering and describe what you're dealing with. I'll give you a straight answer either way. Core Skills & Technologies Full Stack Development | SaaS Development | Web Application Development | React Developer | Next.js Developer | Node.js Developer | JavaScript | TypeScript | REST API Development | API Integration | Backend Development | Frontend Development | Stripe Integration | Stripe API | Stripe Checkout | Stripe Connect | Stripe Webhooks | Subscription Systems | Payment Gateway Integration | Payment Processing | WooCommerce | WordPress Development | Elementor | WordPress Customization | WooCommerce Development | Admin Dashboard Development | Authentication Systems | MongoDB | PostgreSQL | MySQL | Spring Boot | Cloudinary Integration | Performance Optimization | Bug Fixing | Webhooks | Third-Party API Integration | Scalable Applications | Responsive Web Design | SaaS Platforms | Database Design | Secure Payment Systems | Technical Troubleshooting

I’m a Senior Software Engineer with over 4 years of experience delivering secure, scalable, and high-performance software solutions for startups, SMEs, and enterprises across industries such as e-commerce, fintech, blockchain, edtech, and food & beverage. My core focus is on backend development, API engineering, cloud-native applications, workflow automation, and AI-powered solutions, but I also bring full-stack expertise to deliver complete, production-ready systems. I hold a Bachelor’s degree in Computer Science and specialize in building robust, maintainable, and efficient backend architectures using Java, Spring Boot, Node.js, and TypeScript, integrated with high-performance databases like PostgreSQL, MySQL, MongoDB, and Redis. I’m highly skilled in RESTful API development, microservices architecture, asynchronous processing, and secure authentication (JWT, OAuth2, SSO). Core Technical Skills: Backend Development: Java, Spring Boot, Spring MVC, Jakarta EE, JavaFX, Node.js, Express.js, Python, Golang Frontend Development: React, Angular, Next.js, Thymeleaf, JSP/JSTL, Bootstrap, HTML5, CSS3, JavaScript, jQuery Databases: MySQL, PostgreSQL, MongoDB, Redis (NoSQL & SQL database design, query optimization, indexing, caching) Cloud & DevOps: AWS (EC2, S3, RDS, Lambda), Google Cloud Platform (GCP), Microsoft Azure, Docker, Kubernetes, CI/CD pipelines Messaging & Integration: RabbitMQ, Kafka, WebSockets, API Gateway integrations, GraphQL Automation & AI: n8n, Make (Integromat), Apify, PhantomBuster, OpenAI API, AI model integration, workflow orchestration Version Control & Collaboration: Git, GitHub, GitLab, Bitbucket, Agile/Scrum methodologies Achievements & Project Highlights: ✔ Built an e-commerce platform capable of handling 500+ daily transactions, reducing load times by 30% and lowering infrastructure costs by 15% through database optimization and caching strategies. ✔ Led a cloud migration project from legacy infrastructure to AWS, reducing operational costs by 25% while improving scalability and uptime. ✔ Developed an AI-powered study assistant for neurodivergent students, winning the AI for Social Good hackathon and improving engagement and retention rates. ✔ Created a data automation pipeline that processed and scored 1,300+ startup applications for Pitch2Win, enabling quick finalist selection and improving investor matching efficiency. ✔ Engineered a grant-winning platform for Babcock University’s community health project, helping secure $80K in funding. What I Bring to Your Project: ✔ Expert in API-first development, secure authentication, and microservices architecture ✔ Strong track record with data enrichment, web scraping, and workflow automation tools like n8n and Apify ✔ Proven ability to design cloud-native, fault-tolerant, and cost-optimized applications ✔ Deep experience in AI integration for lead generation, data analysis, and personalized user experiences ✔ Commitment to clear communication, on-time delivery, and scalable, future-proof code If you’re looking for a results-driven software engineer who can handle everything from custom backend architecture to AI-driven automation systems, I’d love to collaborate. Let’s discuss how I can turn your requirements into a solution that’s efficient, secure, and built for growth.

Most founders and business owners build a great idea then struggle to launch it because they need two separate developers for the website and the web application. I solve that in one engagement. I design and build complete digital products in Webflow and Bubble io your marketing site and your web application delivered together, faster than hiring two freelancers, and built to scale from day one. Whether you need a high-converting SaaS marketing site, a functional MVP, or a full web application with user authentication, database logic, and workflow automation, I handle the entire stack without handoff friction. If you are ready to launch your product properly 𝗰𝗹𝗶𝗰𝗸 𝘁𝗵𝗲 𝗜𝗡𝗩𝗜𝗧𝗘 𝗯𝘂𝘁𝘁𝗼𝗻 and let's build it. With 5+ years of experience in web design and development, I combine strong UX/UI, clean code, and conversion strategy to build websites that don't just look premium they perform. 𝗪𝗛𝗔𝗧 𝗜 𝗕𝗨𝗜𝗟𝗗 𝗙𝗢𝗥 𝗬𝗢𝗨 ✓ SaaS marketing websites homepage, features, pricing, and demo pages built to convert ✓ B2B and agency websites that turn cold traffic into qualified pipeline ✓ Startup launch sites clean, credible, and investor-ready from day one ✓ Figma to Webflow pixel-perfect conversion of your existing designs ✓ Landing pages optimised for paid traffic, product launches, and lead capture ✓ Webflow CMS for blogs, case studies, resource libraries, and scalable content ✓ Website redesigns focused on improving conversion rate and user experience ✓ SEO architecture semantic structure, metadata, schema markup, and sitemap setup ✓ Performance optimisation Core Web Vitals, fast load times, and mobile-first execution Bubble io — Web Applications and MVPs ✓ SaaS MVP development user authentication, database logic, and subscription billing ✓ Marketplace apps buyer and seller flows, reviews, and Stripe payment integration ✓ Client portals and dashboards custom CRM, reporting, and workflow automation ✓ Internal tools job quoting apps, booking systems, and lead management platforms ✓ AI-powered web applications OpenAI, Claude API, and automation integrations ✓ Membership sites and community platforms with role-based access control ✓ API integrations Zapier, Make, Twilio, Mailchimp, HubSpot, and custom APIs ✓ Bubble io performance optimisation and existing app improvements 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 𝗜 𝗦𝗲𝗿𝘃𝗲 ✦ SaaS and Software Startups ✦ B2B Technology and Enterprise Tools ✦ Funded and Early-Stage Startups ✦ Fintech and Financial Services ✦ Healthcare Technology and MedTech ✦ Real Estate and Property Technology ✦ Marketing Agencies and Creative Studios ✦ Local Businesses and Service Companies 𝗣𝗟𝗔𝗧𝗙𝗢𝗥𝗠𝗦 𝗔𝗡𝗗 𝗧𝗢𝗢𝗟𝗦 ✦ 𝗣𝗿𝗶𝗺𝗮𝗿𝘆 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 Webflow · Bubble io · Framer ✦ 𝗗𝗲𝘀𝗶𝗴𝗻 𝗮𝗻𝗱 𝗣𝗿𝗼𝘁𝗼𝘁𝘆𝗽𝗶𝗻𝗴 Figma · Responsive UX/UI · Wireframing · Component Systems ✦ 𝗪𝗲𝗯𝗳𝗹𝗼𝘄 𝗘𝗰𝗼𝘀𝘆𝘀𝘁𝗲𝗺 Finsweet · Client-First · Webflow CMS · Memberstack · Webflow Logic ✦ 𝗕𝘂𝗯𝗯𝗹𝗲.𝗶𝗼 𝗘𝗰𝗼𝘀𝘆𝘀𝘁𝗲𝗺 Bubble Database · Bubble Workflows · Bubble API Connector · Stripe · Twilio ✦ 𝗔𝗜 𝗮𝗻𝗱 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 OpenAI · Claude API · Zapier · Make · HubSpot · Mailchimp · CRM Integrations ✦ 𝗔𝗻𝗶𝗺𝗮𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 GSAP · HTML · CSS · JavaScript Your idea deserves a website that attracts users and an application that keeps them. If you are a founder, startup, or business ready to launch both without the complexity of managing two developers send an invite and let's build something that works.

Experienced Full Stack Developer and Startup Catalyst I am a versatile and skilled Full Stack Developer specialising in Java, Python, React, and Angular, with a focus on building scalable web applications. I excel in both front-end and back-end development, delivering projects from concept to deployment with intuitive user interface design and robust server-side logic. Key Skills and Expertise: ✅Web Frameworks: Spring Boot, Django ✅Databases: PostgreSQL, MySQL, MongoDB, DynamoDB, Google Cloud Datastore, BigQuery ✅APIs: Google Ads API, Facebook Business API ✅DevOps: Kubernetes, Docker, AWS Services ✅Message Queues: Kafka, RabbitMQ, ActiveMQ, Artemis, AWS SQS ✅Authentication: Keycloak, Apache Camel ✅Architecture: Microservices, API Gateway, Service Discovery (Kubernetes), Configuration Management ✅Search Technologies: Elastic Search, Apache Solr ✅UI Frameworks: Angular, ReactJS, NexJs ✅Others: Spring, Spring Boot, Spring Cloud, Spring Security, Hibernate, JPA, JDBC, REST API, SOAP, gRPC, GraphQL, Apache POI What Sets Me Apart? Versatility & Expertise: Proficient in multiple programming languages and web frameworks, I excel at Full Stack Development, allowing me to create robust and seamless applications. My deep understanding of Java, Python, React, Nexjs, and more enables me to adapt swiftly to new technologies and frameworks. Startup Catalyst: My extensive experience with early-stage startups and major organisations has given me the expertise to help businesses raise seed rounds. I play a crucial role in driving growth and success by building impactful products. Commitment to Quality: I believe great software is a result of a thoughtful process. I practice Test-Driven Development (TDD) and write organised, high-quality test code that is integral to the source code itself. Why Choose Me? I am dedicated to delivering top-notch solutions tailored to your unique requirements. My expertise in Full Stack Development allows me to craft intelligent and efficient applications. By combining technical skills with a deep understanding of development best practices, I ensure a seamless collaboration for success. Let's work together to transform your ideas into reality. Contact me today, and let's elevate your projects with intelligent solutions and impeccable software engineering.

I am an experienced global recruiter with years of experience sourcing, recruiting and managing technical and non-technical talents across various industries in the United States, Asia and Europe. I have mastered the art of recruiting, managing and retaining talents by leading the candidate sourcing strategy for engineering, IT, marketing, sales, finance, admin and other roles. My expertise includes the following: ✔ IT recruiting and business recruiting ✔ Boolean search and Xray ✔ Linkedin recruiter and recruiting ✔ Candidate sourcing and communication ✔ Candidate Interviewing ✔ ATS management ✔ GitHub and Stackoverflow sourcing ✔ Job board posting (Indeed, Monster, Reed, Ziprecruiter, CV library etc.) ✔ CV Database ✔ Onboarding I have recently worked with the United States Agency for International Development(USAID) to source, assess, shortlist, interview, and hire technical and strategic candidates for their projects across America and Europe. I lead the IT and non-IT recruitment process. With relevant certifications in recruitment, I have developed the technical skills needed to qualify sourced candidates and pre-screen these candidates before an interview is set up. Here is what some of my clients here on Upwork have to say. "Peter is a master recruiter. He knows all the nitty-gritty of recruitment and he constantly supplied me with the best candidates in the market. He is an independent thinker and an asset to any recruitment team" - Mike D ⭐⭐⭐⭐⭐ "Peter has been excellent, almost like a mind-reader - he knows exactly what I want without having to explain it in detail. His work has been perfect and I plan to continue with him for as long as I need this type of work completed." - Dave S. ⭐⭐⭐⭐⭐ Invite me for your job if you believe I could be a huge part of your recruitment process to help you source, interview, hire, and retain top-skilled talents.