Application Development

Come join Discover technologists to learn what we're doing with open source in the financial space.

Understanding that chaos is better than crisis leads teams to build capabilities in their applications, monitoring, logging, and alerting practices.

The ODS Framework enables you to get a quick view of all open source and proprietary software in your enterprise.

Discover continues its commitment to open source by donating ML-based optical character recognition technology to the Fintech Open Source Foundation.

Learn how to harness BPMN, CMMN, and DMN to made financial institutions more efficient and ready to transform with AI.

This blog post examines the second axis, how the processes used to enforce API governance may need to change in your organization to support the adoption of AI.

This blog post examines how your organization’s approach to its people and organizational structure may need to change to support the AI revolution.

This blog post examines the second axis, how the processes used to enforce API governance may need to change in your organization to support the adoption of AI.

Discover was a proud sponsor of the 2025 Women Impact Tech conference in Chicago. Check out a highlight reel of the incredible event.

Learn how automation, AI, and technology modernization efforts will increase operational efficiency in your organization.

The summit provided valuable insights into the latest advancements in automation, operational efficiency, and how financial institutions can harness these technologies to stay ahead in an increasingly competitive landscape.

I'm most excited about the fintech trends that I believe will help Discover deliver faster, more secure, resilient technology that benefits our customers. Here are the 6 trends that I see taking off in 2025.

Join Discover technologists at this year's KubeCon | CloudNativeCon conference to learn more about open source, containers, and other cutting edge technologies.

Join Discover technologists at this year's KubeCon | CloudNativeCon conference to learn more about open source, containers, and other cutting edge technologies.

Two long-time Discover engineers earned the prestigious Distinguished Engineer designation.

Get a replay of how Discover showed up at KubeCon +CloudNativeCon North America in Salt Lake City, Utah.

How Discover got serious about reducing cloud costs to save $20M+

The article gives an overview of ACH and NOC, how the flow of information happens, and then explains two approaches financial institutions can take towards NOC: reactive or proactive.

This post highlights Discover's migration journey, focusing on the technology changes and updates we made, the steps we took to ensure adoption at the enterprise-wide level, and the benefits we’ve experienced so far from our transformation journey.

Learn about a new tool from Discover that improves Optical Character Recognition technology to handle in-clearing process errors.

Learn how a team at Discover used generative AI to improve the customer experience while reducing risk.

Join Discover and Google Cloud for an intimate engagement with the diverse Chicago tech community, talking about AI and generative AI, a DE&I panel discussion and more.

Hear from apprentices in the Chatham Technology Hub Apprenticeship Program about how Discover has helped them create a path to exciting careers.

Meet Senior Principal Agile Program Manager, Robert Clawson.

Learn how Discover made the decision to create its own cybersecurity certification program.

Meet Chaka Smith, an automation apprentice at Discover Chatham Technology Hub.

Get to know Soumya Raju, a life-long learner who transformed her engineering career into a fulfilling product owner position.

Hear from Angel Diaz as he accepts the award for the American Banker 2024 Innovator of the Year.

This article discusses strategies that Discover Financial Services uses to empower individuals and teams within Discover to grow their skills and advance their careers.

The Discover Chatham Technology Hub is making a difference for our customers and also for the vibrant community on Chicago's South Side.

This article covers considerations product owners at Discover weigh when making the decision to build, buy, or partner.

Learn how Discover is embracing GenerativeAI in a thoughtful, intentional, security-focused manner.

Learn how Discover’s security team catches vulnerabilities before deployment.

The digital analytics team at Discover used data and a test-and-learn framework to hone the marketing experience for customers. Learn how they quadrupled their run rate in four years.

DevSecRegOps takes DevSecOps a step further by ensuring security and regulatory demands are the responsibility of every team at key development steps of the IT lifecycle.

As companies compete over the best talent, how do you attract and retain top talent? One approach Discover takes is to attract great people and equip them with the skills to do the job.

Keith Nielsen was recently recognized as a Discover Distinguished Engineer. Hear how his storied career earned him this distinction.

“This blog post highlights 7 lessons our team learned as we developed and deployed a data-driven personalization engine.”

Learn how developer-focused initiatives has helped Discover automate or eliminate more than 100,000 hours of developer toil.

Join Discover and industry partners Red Hat, Pluralsight, Avanade, and 1871 for an intimate engagement with the diverse Chicago tech community.

Explore 3 ways that Discover embraces an open-first strategy—and hear how we used these to build our first open-source project.

Learn how Jason Burke went from intern to VP with the support of Discover.

This blog post highlights 7 changes the Digital Payments team made to create a culture where product teams own the reliability of their offerings.

Join us for a deep dive into different facets of AI/ML and data science in financial services.

While it’s easy to think that you are exempt from thinking about accessibility because you’re only creating internal products, the truth is that accessibility affects more people than we know and is all our responsibility.

Join Discover creative Kevin Rogers as he finds out what open source is and why it's important. Kevin is joined by Roland Krocin who explains how cooking up grandma's spaghetti can be a delicious metaphor.

Learn how Discover is using generative AI to create a better customer experience by empowering our call center agents.

Learn how an all-or-nothing approach to development is not the best plan and how our team now implements small-batch deployments.

To inspire your engineers to do their best work every day, you must offer a shared mission, build careers using a community-focused approach, and provide a clear growth path.

Learn how Discover empowers engineers to continuously generate, test, and launch new ideas.

How Discover has revolutionized its approach to product, platform, and customer delight.

Learn about the Accessibility Theme Builder open source tool that builds accessibility into the design and development process.

Join Discover creative Kevin Rogers as he finds out what an API is and how they work from George Mitry, leader of the Discover API Center for Enablement.

Discover's approach to digital transformation starts with an emphasis on product-centricity and relies on empowering internal teams.

Explore the challenges for estimating project timelines, see the reasons behind the difficulty, and hear valuable insights to improve your ability to estimate future timelines.

“In this series of short videos, Geoff Godwin covers five solid principles you can use to improve your coding practices.”

Learn how a Discover technology hub on the south side of Chicago is reimagining how talent is built at Discover.

Discover was awarded the Spread the Word Award by FINOS to recognize the work that Discover has done in the open source fintech space, particularly around its sponsorship of the Global Accessibility Awareness Day Hackathon.

In this video, Lise Noble, Distinguished Engineer at Discover, shares what drives her passion for accessibility in design and open source.

In this video, Angel Diaz, Discover Vice President for Technology Capabilities and Innovation, discusses how the company uses open source principles to support the people, processes and technology behind its products.

In this talk from PlatformCon 2023, hear how Discover created a better developer experience by creating a singular path for developers to follow, to accomplish a specific task.

BCS, The Chartered Institute for IT, has recognized Discover with its highest accreditation based on the Discover skills development program .

Meet Natasha Perez, passionate product leader and customer advocate.

Meet Joe Mills, a people leader and director of Transformation Strategy and Automation.

This blog post highlights the journey we took to build and open source the Accessibility Theme Builder project.

In this discussion, Dr. Angel Diaz, an open source pioneer spanning two decades of technology democratization, dives into the ways that companies are using open source to drive modernization across the enterprise and power digital transformation at scale.

In this conference talk, Lise Noble talks about how open source is influenced and improved by designers.

Learn about the winning solution of the Fintech Open Source Foundation’s Global Accessibility Awareness Day (GAAD) Hackathon.

Join us for a cloud developer meetup where you'll learn and share about Kubernetes platforms and portals with fellow cloud practitioners.

In this video, Angel Diaz, VP of Technology Capabilities & Innovation, talks about how Discover brings together the customer journey with engineering principles, open source, and more.

Discover automation engineers attended the Bank Automation Summit. Watch the video of their panel: Automation Operations: Use Cases for Transformation.

Learn how to build APIs that your consumers can actually consume.

Discover contributes open DesignOps tools to advance accessibility and improve design practices for everyone.

Learn how Discover uses human-in-the-loop robotic process automation to alleviate manual tasks and free team members to work on innovation that matters.

What makes an API good or bad? Watch Geoff's video to find out.

Meet Priya Krishnamoorthy, an engineering manager at Discover with a passion for singing.

Meet Megan Wrest, a 90's kid who loves technology and solving problems.

This article covers how we started reducing reliance on end-to-end testing by using contract testing.

Create React App's best days are behind it. What does that mean for you and building React applications?

We've all heard about APIs, but what exactly are they and how do they work? Watch Geoff's video to find out.

Like the popular Fallacies of Distributed Computing, you can't trust everything you hear about API management.

The unprecedented convergence of global changes continues to impact the focus of tech teams. How can your technology company be prepared to succeed in 2023? Hear from Ed Calusinski, VP of Tech Strategy at Discover about what will put you ahead this year.

Get to know Kate Lorenzen, video game enthusiast who does what she loves in her own unique way.

“Get to know Stephanie Kurensky, a product owner who helps her team manage the end-to-end experiences for the gift card and charity redemption options at Discover.”

How can a sand castle illustrate the interplay between the maker and the manager? Watch Geoff's video to find out.

Meet Glenn Turner Jr., a product owner with a passion for martial arts.

In Part 3 of his series on tech debt, Discover application architect Geoff Godwin shares some tips on how to build amazing products, even when faced with mounting technical debt. Geoff details how thoughtful, modular design can help.

Hear from Angel Diaz, VP Technology Capabilities & Innovation, about how Discover is embracing open source.

Hear why technology leaders at Discover believe building your craft and continuously learning is the key to your success.

Get to know Nagesh Basana, one of the engineers responsible for protecting your oline privacy.

Common pitfalls of creating a cloud architecture strategy--and what to do instead.

A comprehensive API strategy should consider API creation, consumption, enablement, discoverability, and more. This article covers ways to approach crafting a multidisciplinary API strategy.

Learn why APIs and microservices are so distinctly different and why you need to account for both in your technology strategy.

Meet George Mitry, the man leading our API Center for Enablement.

In this tutorial, I show you how to write tests based on Scala that can be executed as a standalone process or using a Gradle plugin called Gatling.

Get to know John Coyne, an experienced engineer who is passionate about bettering our customer's lives and sharing his knowledge with our engineering community.

Keith Nielsen, Director of Cloud Architecture at Discover Financial Services, shares how Discover is using Kubernetes to secure its cloud operations.  

Meet Geoff Godwin, creator and host of the 'A Moment of Your Time' Youtube series.

In Part 2 of his series on tech debt, Discover application architect Geoff Godwin does a deep dive on coding best practices to help software developers and application engineers avoid some types of tech debt.

Meet Caleb Sorenson--foodie, jam session enthusiast, and product owner.

Learn about tools and methods to implement in your workflow to enable localization and versioning of resources to remove shared architecture limitations.

Teams often focus on technology as simply delivering and building new features and fail to factor in the underlying costs of infrastructure when building out product plans.

This article explains what I learned about technical debt while engaging with engineering teams and highlights why and how teams and leaders can reduce tech debt to create a smooth journey for your customers.

The why, what, and how of reactive programming.

Learn how to set up mutation testing for your Java applications

Learn about this workaround for retry configurations in Spring applications.

Reasons why static testing should be given the same level of weight and focus as dynamic testing.

In this article, Praveen Erode Mohanasundaram discusses how you can use contract testing to reduce reliance on expensive end-to-end tests and complex test environments.

In the first episode of A Moment of Your Time, Discover application architect Geoff Godwin provides a definition of tech debt and the snowball effect that can happen if it's not addressed in an effective, time-efficient manner.

Learn about the different types of technical debt and evaluate how much debt is too much for your team.

The pros, the cons, and when to use the monorepo pattern.

Module federation allows a JavaScript application to dynamically run code from another bundle or build, on client and server.  With module federation, modules in a distributed system can be shared by shipping critical shared pieces as large or small as you would like.

Learn how we achieved millions in annual hours returned in addition to tens of millions in annual financial benefits realized, both in cost avoidance and direct financial impact/hard savings.

Feature engineering is the process of using domain knowledge, mathematics, and statistics to extract features (also called explanatory variables or predictors) from raw data via data mining techniques.