About Us

AppSierra is a software development agency, we differentiate ourselves by building strategic long-term partnerships with our clients and providing exceptional quality services at all stages of the application development lifecycle.

Our Process


Tell us about your challenge – we LOVE hard problems!


Together, we custom-build a dream team of developers


We start your pilot project 100% risk-free


We deliver, you are your company’s new rockstar!

How development works ?


Assemble the right team

We handle all aspects of vetting and choosing the right team that you don’t have the time, expertise, or desire to do.

Sprint planning

Sprint roadmap is a collective planning effort. Team members collaborate to clarify items and ensure shared understanding.

Tech architecture

We break monolithic apps into microservices. Decoupling the code allows teams to move faster and more independently.

Iterative delivery

We handle all aspects of vetting and choosing the right team that you don’t have the time, expertise, or desire to do.

Code reviews

Code reviews before release help detect issues like memory leaks, file leaks, performance signs, and general bad smells.

Standups & weekly demos

Standups, weekly demos, and weekly reviews make sure everyone is on the same page and can raise their concerns.

Tools and Technologies that we use


AppSierra Guarantee

We know that if the client’s project launches smoothly, they’ll come back for more. We’re willing to over-invest in guaranteeing results, rather than under-invest to make our financial reports look pretty in the short-run.

We offer a risk-free trial period of up to two weeks. You will only have to pay if you are happy with the developer and wish to continue. If you are unsatisfied, we’ll refund payment or fix issues on our dime.

Request Free Trial

Leading companies trust us to develop software

We add development capacity to tech teams. Our value isn’t limited to building teams but is equally distributed across the project lifecycle. We own and guarantee the successful delivery of your project.

AppSierra’s way of building great software

Build the right team to scale

Finding the right talent is not easy. We help you find the talent that suits your needs, follows your processes, and sticks with you long term (not the case with freelancers).

Our delivery model helps you cut costs and deliver within budget.


Quick time to market gives you an edge

Faster delivery time gives companies an edge that most can’t easily replicate. Our rapid iteration + early feedback model helps our clients get to market quickly.

In fact, most investors look for this ability to execute quickly as a key factor when investing as failing fast and learning quickly is critical for success.

It all starts with code & architecture

Software architecture is defined as designing parts that are hard to change later. We categorize all work as either
“offensive” or “defensive.”

Offensive work is an effort towards delivering things quickly that noticeably advance the value of a product.

Defensive work is an effort aimed at the long-term health of a product (e.g., code refactoring, feature rewrites, or, data migration) and to avoid technical debt.


Adopting your process with agility

While other agencies may appear less expensive on an hourly basis, we believe that they cut corners in their development process and therefore pass on hidden risks and costs to clients.

We match, adopt, and collaborate with clients to improve processes and quality standards..

How we find the top 3%

We’re fanatical about finding the best talent. Our rigorous screening process ensures
your project is always in good hands.

1 All Applicants (100%)

Our applicants consist of talented professionals from referral networks or those who apply through our hiring channels.

4 Phone Screen (9%)

Candidates who make it to this stage are screened to verify their ability and background, and to make sure they’re a good personality fit for the AppSierra team.

2 Résumé Review (24%)

We look for evidence that a candidate will make a significant contribution to our team. Our members have worked at leading companies, and built popular open source projects.

5 New Member (5%)

Candidates who pass our rigorous phone screen are invited to join the AppSierra culture. They can now start work on certain client projects.

3 Written Screen (15%)

Ability trumps background. We test a candidate’s ability to ship beautiful, performant software with a set of challenging development and design questions.

6 Experienced Member (3%)

AppSierra are monitored to ensure they continue to perform at the highest level. Code reviews, timeline reviews, and design reviews make sure you’re getting the best product possible.

Join Our Team