Senior Backend Engineer - Money Movements Squad

ABOUT THE ROLE Today, roughly 40% of all transactions on the Egyptian Exchange flow through Thndr. Every one of those trades has to be funded, and every pound, dirham, or soon riyal, a user makes has to be money they can actually take back out. Money has to move, into accounts, out to banks, between our own books and the market, accurately and on time, every single time. That is the Money Movements team. We move more than 1 billion EGP every day across hundreds of thousands of individual movements, and the figure we care about most is how many of them go wrong, which we work relentlessly to keep as close to zero as possible. We connect directly to banks, payment gateways, and payment providers, settle with the exchanges and asset managers, and write and maintain our own backoffice across Egypt and the UAE. Underpinning all of it is our own in-house ledger, built on TigerBeetle, a bleeding-edge financial database that gives us the correctness and throughput this domain demands. We do this across two markets today, with Saudi Arabia coming next. This is a sensitive system. When money is in motion, uptime and correctness are not nice-to-haves, they are the entire job. A delayed settlement, a double credit, or a balance that does not reconcile is never just a bug, it is real money belonging to real people. You would be working alongside some of our strongest engineers on problems that are unusually hard and unusually consequential, owning systems that the rest of the platform quietly depends on.   WHAT YOU'LL DO • Design, build, and operate the services that move money in and out of Thndr, including deposits, withdrawals, settlement, and reconciliation, across Egypt and the UAE. • Own the correctness and reliability of these systems end to end. Money that flows through your code has to land in the right place, in the right amount, every time. • Build and maintain integrations with banks, payment gateways, payment providers, and asset managers, and handle the messy realities that come with them: timeouts, partial failures, retries, and the occasional provider that goes down at the worst possible moment. • Raise the bar on quality and operational discipline, with strong observability, sensible on-call, thorough testing, and systems that fail safely when something goes wrong. • Partner closely with our finance and operations teams, and help bring the same connectivity and rigor to Saudi Arabia as we expand.   WHAT YOU'LL NEED • A strong track record of designing, shipping, and operating reliable backend systems in production, used by large numbers of people. • Real depth in distributed systems, and a clear understanding of what it takes to keep them correct under load and under failure. • Comfort owning systems end to end, from design through production and on-call. You care not just about writing the code, but about how it behaves at 3am. • Familiarity with our stack, or the confidence to get there quickly: Python, C#, .NET Core, PostgreSQL, SQL Server, RabbitMQ, and Redis. • A high bar for correctness and operational discipline. You understand what it means to run a system where a mistake has real consequences for real people. • A clear, candid communicator who can hold their own with other engineers and work closely with the finance and operations teams who rely on what you build. • Strong debugging skills. When a balance is off by 50 cents across a million transactions, you can find the real cause, not just a quick fix.   WHO ARE WE? Thndr was founded on a bold dream to democratize access to investing through smart tech and human-centric design. This is simply our way of saying we give anyone with a smartphone the simple and easy access they need to preserve and grow their wealth. At the same time, we’re shaping the future of investing while actively driving the economies we serve by promoting local investment products. History has shown that investing is the single greatest way to build long-term wealth, but before Thndr, only a very small percentage of people had access to it due to: - High barriers to entry — In the form of excessive minimum account balances, complex, outdated onboarding, and low financial literacy. - Irrelevant experience — Catered toward expert traders and financial specialists, therefore alienating the majority of the population. - Fragmented offering — Investment products were not gathered in a single, intuitive outlet. We don't just talk about change, we deliver it. Here's a glimpse into our impact so far: - 5.5 million app downloads - EGP 1B+ average daily traded value across 2025 - #1 digital investing platform in Egypt for the third consecutive year - 76% of users are first-time investors - 40% of our users come from outside of capital cities and have previously had limited access to financial institutions Building on the success of our core platform, we are continuing to change culture and break down barriers by launching Rumble, the subscription-based investment recommendations platform. Rumble was born with the vision to empower everyday individuals to build wealth confidently and intelligently through access to timely and in-depth advice from the industry’s top experts. Going beyond traditional investment advice, it offers long and short-term investment recommendations and financial content through engaging articles and videos that guide users on their financial journey and maximize their returns. At Thndr, we're looking for people driven by our mission to help us democratize investing across the MENA region.