Backend
We track 24 posts about Backend from 14 engineering blogs. Most active: Kotlin, Wealthfront, Nic Raboy. Latest post: Oct 6, 2026.
Companies writing about Backend
Recent posts
Write End-to-End Tests in Your Backend’s Language (opens on the source site)
The browser is often the easiest part of an end-to-end test. Consider a test that verifies a user can complete an overdue task. The visible interaction is small: sign in, find the task, click Complete, and observe the new status. Before any of that can happen, the test needs a workspace, a user, a project, and […] The post Write End-to-End Tests in Your Backend’s Language appeared first on Atomic Spin.
A FUSE server for our in-house storage backend (opens on the source site)
The following is part of a series of posts about 2026 summer intern projects—for more, see “What the interns have wrought, special jumbo 2026 edition”
The State of Kotlin in 2026 Report (opens on the source site)
Kotlin ·
In 2026, Kotlin turned fifteen. Over those fifteen years, Kotlin has built a mature ecosystem, been adopted by companies around the world, and established a large and active developer community. Fifteen years is long enough to understand which technology trends lasted and which didn’t. This report looks back at Kotlin’s first fifteen years to see […]
WebSocket Support for Your Java Backend (opens on the source site)
Add live updates with Java WebSocket endpoints for text and binary messages. Learn the API, connection limits, and how we use it in device-test CI.
Write End-to-End Tests in Your Backend’s Language (opens on the source site)
The browser is often the easiest part of an end-to-end test. Consider a test that verifies a user can complete an overdue task. The visible interaction is small: sign in, find the task, click Complete, and observe the new status. Before any of that can happen, the test needs a workspace, a user, a project, and […] The post Write End-to-End Tests in Your Backend’s Language appeared first on Atomic Spin.
How Delphi ships 100 times a day with its Python backend on Vercel (opens on the source site)
Vercel ·
Copy link to headingDelphi on Vercel 10 engineers with no dedicated infrastructure role Everyone ships code, including product and design 100+ production deploys a day behind feature flags Delphi builds digital minds. They capture what someone has written, recorded, and taught, so anyone can tap that expertise on demand. Delphi is “a destination where you can find and interact with interesting minds,” says founding engineer Spencer Schoeben. Nobody has built a digital mind network before, so Delphi figures out what to build by shipping features and watching how people use them. That only…
Signatures, be true: domain errors and functional handling in Kotlin (opens on the source site)
Kotlin ·
Here’s a function that signs a document: In Kotlin, Unit means the function completes without returning a meaningful value – roughly equivalent to void in Java. Got it? Now, tell me what could go wrong. You can’t. Yet, the code might be invalid. The signing window might have closed. The database might be down. The […]
Exploring Compose HTML for Server Side Rendering (opens on the source site)
Kotlin ·
Something is happening in server-rendered web development. React shipped Server Components. HTMX made “hypermedia” cool again. Phoenix LiveView proved a server can push interactive UI updates without a client framework in sight. Every ecosystem seems to be rediscovering the server as a place to render UI, except one: the JVM. What if Compose, the UI […]
Secure Your APIs: OAuth2 and JWT for Beginners (opens on the source site)
Kotlin ·
This tutorial was written by an external contributor. APIs are frequent targets for bad actors since they expose data and functionality. Securing them while maintaining usability is often one of the most challenging and time-consuming parts of API development. OAuth 2.0 and JSON Web Tokens (JWT) help make these processes more manageable and reliable. They […]
Slack AI: The Path to Multi-Cloud (opens on the source site)
Slack ·
In early 2023, Slack faced a foundational challenge: serving Large Language Models (LLMs) at enterprise scale with the security, reliability, and performance our customers expect. Over three years, we evolved from basic infrastructure to orchestrating a sophisticated multi-cloud architecture. We didn’t just want shiny new models; we needed a system resilient to regional outages and…
Putting the Tech in Fintech: How We Use FIX to Execute Trades at Scale (opens on the source site)
At Wealthfront, the “tech” in financial technology isn’t just a buzzword—it’s the foundation of everything we build. Beneath the intuitive frontend our clients interact with lies a complex ecosystem of distributed systems. One of the most critical pieces of that backend architecture is the engine that enables us to route massive volumes of trades efficiently. ... Read more
Frontend Engineering at Palantir: Building a Backend-less Cross-Application API (opens on the source site)
Palantir ·
About this SeriesFrontend engineering at Palantir goes far beyond building standard web apps. Our engineers design interfaces for mission-critical decision-making, build operational applications that translate insight to action, and create systems that handle massive datasets — thinking not just about what the user needs, but what they need when the network is unreliable, the stakes are high, and the margin for error is zero.This series pulls back the curtain on what that work really looks like: the technical problems we solve, the impact we have, and the approaches we take. Whether you’re…
How we standardized MariaDB in our Integration Server (opens on the source site)
Engineering at Wealthfront is centered on the idea that code should be written to facilitate testing, not the other way around. Without a staging environment to fall back on, we maximize confidence through a sophisticated, multi-layered testing strategy. While unit tests provide our most rigorous line of defense, our Integration Server is the workhorse that... Read more
How Slack Rebuilt Notifications 📣 (opens on the source site)
Slack ·
Introduction 🔔 At Slack, notifications are how teams stay in the loop, but they can also become overwhelming when not designed with intention. Our goal was to make staying informed feel effortless. We set out to rebuild one of Slack’s most complicated systems from the ground up by bringing calm, consistency, and clarity to the…
The Hidden Cost of Convenience: Rethinking Old ORM Patterns for Scale (opens on the source site)
Ever been here before? Stuck with a job that needs to be continually revisited because its performance gets worse with every passing day, and each attempt at improving said performance yields diminishing returns? This is the situation we found ourselves in with the portfolio balance calculation system—the code responsible for aggregating data from multiple sources... Read more
We’re Hiring a Principal Backend Engineer to Shape the Future of Medium (opens on the source site)
Medium ·
When I joined Medium, it was because I still believe in the internet as a place for ideas. Not noise, not outrage, but content that connects people through shared curiosity.Medium’s mission is to deepen understanding and spread ideas that matter. We’re building the best place for reading and writing online: A space that rewards clarity, authenticity, and craft over clickbait and engagement hacks.That vision only works if the technology beneath it is as thoughtful as the writing above it. That’s where you come in. Yes, you!Photo by Yannick Pulver on UnsplashThe RoleWe are starting the search…
Django MongoDB Backend Quickstart (opens on the source site)
Interested in diving into our Django MongoDB Backend integration? Follow along with this quickstart to create a Django application, connect that application to a MongoDB deployment, ensure your deploy... The post Django MongoDB Backend Quickstart appeared first on DEV.
Grab a Pint With Django-MongoDB-Backend, Voyage AI, and LangChain (opens on the source site)
DjangoCon Europe is just around the corner, and this year, it’s in Dublin, Ireland. This means two things: I’m legally required to drink my first Guinness (yes, first ever!). I obviously had to build... The post Grab a Pint With Django-MongoDB-Backend, Voyage AI, and LangChain appeared first on DEV.
Image replacement in Canva designs using reverse image search (opens on the source site)
Canva ·
Qualitative comparison of image embedding models to power a scalable similar-image replacement system for Canva designs.
Text-UI View backend (opens on the source site)
Red ·
Last year, qtxie worked on a toy text backend project and submitted a PR for that. After some extra additions and testing recently, it has now been merged even if it is still incomplete, it is usable enough. So, in addition to the shiny GUI backends in Red/View, now we have an old-school text-based user interfaces (TUI) backend for the View engine! The new TUI backend has currently a subset of the GUI backends features. Here is an overview: View styles: base, panel, button, check, radio, field, text, progress, rich-text, image and text-list. Draw commands: text, line, box, triangle, circle,…
Text-UI View backend (opens on the source site)
Red ·
Last year, qtxie worked on a toy text backend project and submitted a PR for that. After some extra additions and testing recently, it has now been merged even if it is still incomplete, it is usable enough. So, in addition to the shiny GUI backends in Red/View, now we have an old-school text-based user interfaces (TUI) backend for the View engine! The new TUI backend has currently a subset of the GUI backends features. Here is an overview: View styles: base, panel, button, check, radio, field, text, progress, rich-text, image and text-list. Draw commands: text, line, box, triangle, circle,…
Data replication across backend services with Kafka and Protobuf (opens on the source site)
The Jobteaser application contains a lot of different relatively independent modules to help universities provide career guidance to students: a job board, a career event management system, a career advice appointment management system…When we decided to migrate our application’s backend from a monolith to a service-oriented architecture, we strived to keep each module as isolated as possible from the others in the event of an incident. If the career appointment system was down, students should still be able to browse and apply to job ads.That isolation is achieved through what we’ve called…
Non-Flaky builds with Nix Flakes and Hakyll (opens on the source site)
Let’s start with a beautiful quote, which also can act as a great summary of what I want to share: “If you need a readme.md explaining how to build a project, you already failed” – Eelco Dolstra With this in mind, try to think back if you ever tried to follow along in a tutorial […]
Implementing Domain Driven Design at Small Improvements (opens on the source site)
We all love reading about the latest software developments trends and buzzwords but they can often turn out to be just that, buzzwords. For us at Small Improvements, Domain Driven Design (DDD) has really lived up to it’s own hype though and helped us build better software, faster and fewer bugs to boot. Do we have […]
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