Duplo is a Lagos-based fintech startup that enables businesses in Africa to automate their spend management, simplify cross-border payments, and control business finances all on one platform.
We want to make B2B payments as simple as P2P payment apps. Most business payments in Africa are made offline….yikes. We are on a mission to transform this. We are backed by top investors including Tribe Capital, Commerce Ventures, Liquid2 Ventures, Basecamp Fund, Soma Capital, YCombinator, Oui Capital, and others.
This is a unique opportunity. You'll have the responsibility and resources to take a significant part in the creation of a paradigm-changing product that will impact millions.
We are seeking a highly skilled Senior Full Stack Developer who is comfortable with front-end, back-end and DevOps development. The ideal candidate would be responsible for designing and developing front-end web tools that deliver back office portals, customer and payment support automations and finally the needed backend services that ensure visibility, responsiveness and support to issues impacting our internal and external customer needs. The senior full stack developer position would be required to see projects through from conception to final product, requiring good organizational skills and attention to detail.
Responsibilities:
1. Frontend Development
- Design and develop the tools and dashboards listed above using modern frameworks like React, NodeJS, NestJS and similar technologies.
- Ensure the UI/UX design is implemented correctly, making the application visually appealing and user-friendly.
- Shall use test automation best practices to guarantee the quality of solutions worked on.
- Optimize frontend performance to ensure a smooth and responsive user experience.
2. Backend Development
- Develop server-side logic using Node.js, Python, Flutter (optional), Java, or PHP programming languages for our new backoffice administration platform.
- Create and manage databases using technologies like MySQL, PostgreSQL and MongoDB.
- Develop and integrate Secure Restful APIs with frontend components to enable seamless communication between the client and server.
- Leverage CICD practices to build efficient delivery pipelines on Github that target multiple environments.
3. Database Management:
- Designs, implements, and manages relevant databases for efficient data storage and retrieval.
- Ensure database security and implement measures to protect data.
4. Collaboration and Project Management:
- Work closely with designers, project managers, and other developers to create cohesive products that meet business requirements.
- Participate in all aspects of agile software development, including design, implementation, and deployment.
- Take the lead on back office projects, from conceptualization to deployment.
5. Performance Optimization:
- Monitor, analyze, and improve web applications for speed, scalability, and security.
- Ensure application performance, uptime, and scale, maintaining high standards for code quality and application design.
6. Communication and Learning:
- Engages in effective communication with cross functional team members via slack, gitHub comments, documents, and huddles.
- Stays abreast of developments in web applications and programming languages, continuously updating skills to meet evolving project needs.
- Participates in knowledge sharing.
Technical & Professional Requirements:
- 5+ years of experience as a full stack engineer, preferably in the payments space.
- Strong technical acumen, with the ability to engage with engineers on other teams on the software architecture, our APIs, and system design that yields working software.
- Proven track record of launching and scaling solutions or financial products.
- Experience working with APIs, cloud-based architectures, microservices, and security best practices.
- Expertise in Agile, Scrum, and Kanban methodologies for product development.
- Experience driving cross-functional solutions.
- Experience with the Oncall process.
- Exceptional analytical and problem-solving skills, with a data-driven mindset.
- Strong communication and stakeholder management skills, with the ability to influence across teams and leadership levels.
- Experience with regulatory compliance in payments (PCI DSS, PSD2, AML/KYC) is a plus. Having integrated these requirements into your past solutions would be an added plus
Top Skills
What We Do
Duplo helps businesses seamlessly navigate the complexities of local and international payments, expense management, and foreign exchange. Rooted in Africa but built for global commerce, Duplo empowers businesses to streamline financial operations and thrive in today's fast-paced, interconnected economy, grow their global footprint, and capitalize on the growth of emerging markets.
Our platform offers a comprehensive, end-to-end solution for businesses to better manage their financial operations and local and international payments. Our expense management tools enable finance teams to easily handle approvals, manage reimbursements, submit receipts, calculate taxes, and generate accurate reports—enabling businesses to automate their workflows and reduce errors.
We also offer multi-currency wallets, allowing businesses to negotiate, exchange, and send multiple currencies in one place, making international transactions and cross-border trade between Africa, Asia, and other regions more efficient.
Our AI-powered platform brings a new level of fraud detection to spend management, flagging unusual expenses and ensuring consistency. Additionally, our direct debit functionality allows businesses to manage payments directly from their bank accounts or their existing ERP solutions, creating a seamless payment experience.
What sets Duplo apart is our comprehensive end-to-end finance operations and payments platform, creating a two-sided network that connects buyers and suppliers. Backed by licenses such as PSSP, FINTRAC, FINCEN 2025, and IMTO, Duplo ensures secure and compliant transactions across countries.
As an early mover with experienced leadership, Duplo is positioned to deliver the tools businesses need to thrive in today’s interconnected world. With Duplo, businesses can take control of their financial operations and payments, eliminate errors and inefficiencies, and unlock new opportunities for growth.
