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Backend integration challenges
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Backend integration challenges
We’ve been gradually adding third-party services to an older system, and every new integration feels harder than expected. Things that looked simple on paper turned into long debugging sessions because of legacy code and missing documentation. At one point, even small changes caused unexpected side effects elsewhere. It made me wonder which backend issues usually show up first when systems evolve like this, and how teams avoid breaking what already works while still moving forward.
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2 Replies
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That situation is pretty common. In my experience, the biggest headaches come from mismatched data formats, unclear service boundaries, and assumptions baked into older code. One project I worked on had tight coupling everywhere, so adding a new service meant touching multiple components. We eventually had to slow down and clean up interfaces before moving on. Reading through backend approaches on https://agileengine.com/backend/ helped us frame integrations around scalability and isolation, rather than quick fixes. It reinforced the idea that integration work is as much about structure and planning as it is about writing code.
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Once new pieces are introduced, those unwritten rules clash with fresh logic. Over time, that creates fragile spots where small updates feel risky. The smoother setups usually come from teams that invest in clarity early, even if it slows delivery at first.
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