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What does a software developer do? Responsibilities and skills

April 30, 2026 

By: The Capella University Editorial Team with Bradly E. Roh, PhD, DBA and Interim Dean and Vice President for the School of Business, Technology and Health Care Administration

Reading Time: 12 minutes  

Most of the digital experiences you rely on every day are powered by software developers working behind the scenes.

From banking apps to complex cloud platforms and artificial intelligence tools, software developers design, build and maintain the programs that make technology run smoothly.  

But as a software developer, your work goes beyond writing lines of code. You spend a lot of time analyzing problems and designing solutions. You then test and refine the software to ensure it works well and securely over time. You also work with designers, product managers and engineers to turn a concept into a reliable product. 

Explore what software developers do, the responsibilities that define the role and the skills used to build modern applications. 

Note that neither Strategic Education, Inc., Capella University, nor any of their affiliates promotes, endorses or has any business relationship with the products or platforms listed herein. 

What does a software developer do?

A software developer turns ideas into working software. They take a problem, whether it's a slow business process, a user need or a gap in a product, and build a digital solution for it. That solution might be an app, a web platform, an internal tool or something embedded in a larger system. 

Beyond coding, developers collaborate with other teams to refine features, fix issues and adapt software to changing technologies and user expectations. For example, many developers now work on integrating artificial intelligence (AI) into existing tools. 

As a developer, you can work across many areas of IT, including computing infrastructure providers, computer systems design services, and scientific and technical consulting services. But there are also many development roles in non-tech industries, like finance and retail, where software supports operations and customer experiences.

Key responsibilities of a software developer

At its core, software development is about turning ideas into working applications, and its role can span the full lifecycle of an application. While the exact responsibilities differ by role and company, here are the key responsibilities of a software developer.

Planning and designing features

Software developers translate product requirements into actionable technical plans. They define how a feature should function, consider how users will interact with it, examine edge cases and assess how it fits into the existing system. 

They also choose tools and frameworks that help develop these features. While senior software engineers may lead system-wide architecture, developers help define the structure of individual components and ensure they integrate smoothly.

Writing and implementing code

Writing clean, efficient and maintainable code is at the core of a developer’s role. Developers use programming languages like Python, Java, JavaScript or C++ to implement features based on defined requirements. 

They also use frameworks and libraries to speed up development and follow coding standards so that software remains scalable and easy for other developers to understand and extend. 

Testing and debugging software

Developers are responsible for ensuring that their code works reliably. They run tests to find bugs and fix errors so the software performs as expected after new features are added.  

Software testing is typically done at four levels: unit testing, integration testing, system testing and user acceptance testing. 

If a test fails, developers investigate logs and code to find the root cause before deploying the update to a live server where users can access it. Consistent software testing improves reliability, supports stable releases and prevents recurring issues. 

Collaborating with cross-functional teams

Developers work closely with designers, product managers, quality assurance (QA) engineers and more to deliver user-friendly products. They participate in sprint planning, daily standups and code reviews where they share progress and receive feedback. 

These collaborations help improve their work and encourage knowledge sharing within teams while ensuring that the final software product meets user needs and business goals.

Maintaining and improving existing software 

Software developers keep existing applications up to date and effective over time. They update features, optimize performance, fix problems and address security issues as they come up. This becomes increasingly important as systems and user demand scale. 

By focusing on practical implementation and continuous refinement, software development teams ensure applications remain functional and cater to changing user demands. 

A closer look at a software developer’s daily work

While these responsibilities define the role, let’s look at examples of a developer’s day-to-day work to see how these tasks translate into real-world scenarios.  

Planning and team meetings

Many developers begin their day with a short standup meeting where they share updates, discuss blockers and outline their next tasks. You may also join sprint planning or backlog refinement sessions where the team prioritizes upcoming work. 

For example, your team might decide to focus on building a new login feature and break it down into smaller development tasks.

Coding and building features

A large portion of the day is spent writing, reviewing and refining code. You might work on developing new features or improving existing functionality while also resolving bugs and addressing security risks. 

You may also participate in code reviews where teammates provide feedback. For instance, a teammate may suggest a more efficient algorithm or a cleaner way to structure your code. 

Reviewing, testing and shipping code 

As features are completed, developers test their work to ensure everything functions correctly before release. You might run automated tests and review edge cases to confirm performance and reliability.

Continuous learning and problem-solving

Throughout the day, developers troubleshoot technical issues and research solutions. They also learn and experiment with new technologies – including AI tools – to improve workflows or optimize code performance. 

For example, an AI coding assistant can review your code and recommend optimizations to improve a slow-performing database query.

Types of software development

Software development is a broad field where you can explore different career paths based on your interests. Within these areas of development, software developers often specialize in specific types of work depending on the technologies they use and the problems they solve.  

  • Front-end development focuses on building the parts of software applications that users interact with. A software developer working on the front-end will design and test layout, responsiveness and overall user experience of a tool using tools like HTML, CSS and JavaScript. 
  • Back-end development is about managing the parts of an application that users don’t see, but that make everything work. Here, development teams handle server-side logic, databases and APIs to ensure applications process and store data efficiently.  
  • Web development covers building websites and web applications, ensuring sites load quickly, work across different devices and provide a smooth user experience. A web developer often has both front-end and back-end skills, meaning you may work on both what users see and how the system functions. 
  • Full-stack development includes building complete applications from start to finish. A full-stack developer can contribute across multiple stages of development to fix issues and help teams move projects forward.
  • Mobile development involves creating applications for smartphones and tablets. An application developer builds mobile apps for specific platforms like iOS or Android, or uses cross-platform frameworks to build one app that works across both.  
  • Specialized development refers to advanced areas within software development that require deeper technical expertise. They commonly include cloud development, which focuses on building apps and tools that run on cloud systems, and AI and machine learning development, which involves creating systems that can analyze data, learn patterns and automate tasks. 

Note that these are just examples of the typical types of software development you might encounter. Capella University prepares students with the skills and knowledge to pursue roles in their chosen field, but career outcomes vary by individual and are not guaranteed.  

Key skills for a software developer

To effectively perform your tasks as a software developer, you must have a mix of technical and soft skills. While tools and technologies may change, the core skills remain consistent across most roles.  

  • Programming languages like Python, Java, JavaScript, C++ and C# are the foundation of development. You’ll use different languages depending on what you’re building. 
  • Algorithms and data structures help you write efficient, well-structured code by organizing and processing data effectively. This includes working with concepts like loops, arrays and foundational data structures. 
  • Application structure and system architecture basics help you understand how different parts of an application fit together. So, you can build scalable features and ensure different components operate smoothly. 
  • Version Control Systems (VCS) allow you to track changes and manage different versions of your code. Tools such as Git and GitHub help developers manage updates and maintain project history. 
  • Testing and debugging tools such as JUnit and Selenium are used to ensure your code works as expected and maintains software quality.  
  • Cloud platforms help you run and share applications in real-world cloud environments. This includes using platforms like Amazon Web Services (AWS) or Microsoft Azure to deploy code, manage hosting and ensure your application is accessible and reliable for users. 
  • AI-assisted development systems can speed up coding, testing and troubleshooting by suggesting improvements and automating repetitive tasks. This includes AI coding assistants, machine learning frameworks and AI orchestration platforms like GitLab

Along with technical skills, strong soft skills are essential. Problem-solving and analytical thinking are key skills that help you approach features and challenges logically. You also need good communication skills to improve collaboration, as you work with teams, share ideas and build better software together. 

Capella University is not affiliated with Git, GitHub, Visual Studio Code, IntelliJ IDEA, Junit, Selenium, Amazon Web Services, Microsoft Azure or GitLab. 

3 steps to pursue software development roles

Pursuing a software development role involves building programming skills, understanding how software systems work and gaining hands-on experience through structured learning and real-world projects. 

1. Choose your entry path

Education or structured technical training is a starting point for developers building their portfolio. There are three common pathways. 

  • Bachelor’s degree in computer science or IT: Software Development in an Internet of Things (IoT) Space programs teach you programming, algorithms, systems design and software development principles. 
  • Coding bootcamps: Short, intensive programs focused on programming fundamentals and practical development skills. They can add to your formal education but might not be comprehensive enough for beginners to the field. 

Capella’s IT programs combine career-focused coursework with the flexibility of online learning. Through hands-on projects and experiential learning, you can build practical skills that reflect real-world development work.

These online degree programs are tailored to match current industry demands. As Melissa Zgola, EdD, program director for IT and Computer Science at Capella, explains: 

“The world is changing fast because of AI and this is exactly why now is a powerful time to enter IT. This field needs IT professionals who understand how to build, use and lead artificial intelligence-centered environments to help drive the next wave of innovation.” 

Dr. Zgola continues, “At Capella University, we don’t treat AI as a threat. We teach it as a skill. Our programs integrate AI across the curriculum so students learn to use it responsibly, solve problems faster, and deliver real-world results.” 

You can also build on your education with beginner-friendly certifications, such as CompTIA Tech+ and AWS Certified Developer – Associate. These credentials demonstrate your understanding of development basics and your ability to work with modern tools. 

If you’re changing careers:

Some people transition into software development from other industries, bringing valuable transferable skills with them. Abilities like analytical thinking, communication, project management and problem-solving are highly relevant when building software and working in teams. 

If you want to transition into IT, assess your transferable skills and how they match the requirements of development roles. Then, use online IT programs to learn IT fundamentals and skills while continuing to work.

2. Build a job-ready portfolio

portfolio helps demonstrate your skills, problem-solving ability and experience building functional software systems. It can be helpful to show potential employers real examples of your work rather than just qualifications. 

Aspiring developers commonly use GitHub or other platforms to host their professional portfolios. A strong developer portfolio includes:

  • Links to three to five projects with README files
  • Live demos
  • Case studies
  • Clean, documented code
  • Testimonials and recommendations
  • Contact information

Some project ideas that you can add to your development portfolio include: 

  • CRUD web app with authentication
  • API integration project
  • AI-assisted projects
  • Full-stack app with database
  • Automation tools

Focus on making your projects functional and easy to understand. Common mistakes to avoid are leaving projects unfinished, cloning tutorials exactly, skipping documentation and poor explanations. 

3. Start developing your skills as a software developer

Gaining practical experience is key to pursuing your career as a developer. To do this, apply for internships, freelance projects and hackathons. You can also contribute to open-source projects. 

When preparing for interviews, highlight any real-world experience clearly so that employers understand your level of skill and suitability for the role. Continue improving your skills by learning new tools, networking with other developers and staying up to date with industry trends through tech-focused books, blogs, podcasts and more.

For a more detailed explanation and practical steps on career development, read our article on careers in IT.

Pursue a career in software development with Capella

If you’re interested in building digital tools, software development offers a range of paths worth exploring. 

Building toward a software development role takes time – what matters is starting with the right foundation. 

A strong starting point can be an online computer science or IT program focused on software development, including emerging areas like the Internet of Things (IoT). These programs help you build career-focused skills and knowledge that can translate to real-world development projects.

Whether you're new to IT or already working in the field, Capella's online degree programs are designed to fit around your schedule and goals. You'll explore current technologies and apply what you learn to projects that reflect real development work. 

With flexible online learning options, you can continue progressing toward your goals while managing your existing responsibilities.

FAQs

Do developers need a degree?

Some developers enter the field through bootcamps or self-study, but a bachelor’s degree may provide a stronger foundation and teach you more career-focused skills.

Is being a software developer hard?

Being a software developer can be challenging at first as you learn programming concepts and tools. With consistent practice and real-world experience, it becomes more manageable over time.

What does a software engineer do?

While the roles often overlap, software developers and software engineers typically differ in scope. Developers usually build and improve applications or features, working directly with code to deliver functional products. Software engineers take a broader view by designing systems and defining overall system architecture.

In many organizations, the titles are used interchangeably. However, software engineering roles may involve system-level thinking and long-term design decisions, while developer roles are often tied to implementation and feature development. 

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