Downloads of apps we shipped
Combined iOS + Android installs across our products.
Staff Augmentation
Development Team Extension
Development team extension that plugs senior engineers straight into your existing team, process, and codebase. For startups and SMBs that have momentum and a working team — and just need more capacity without rebuilding how they work.
What You Get
A Product You Can Ship
01
Plugs into your existing team
Our engineers join your standups, sprints, and code reviews. They extend the team you already have rather than running a parallel process.
02
Productive in week one
Every developer we add has shipped production software. They read your codebase, follow your conventions, and commit useful code in the first week.
03
Your process stays intact
No new tools, no new rituals. We work the way your team already works, so adding capacity doesn't add coordination overhead.
§ 03MEASURED OUTCOMES
Results that
speak for themselves.
Seven years of shipping. Every number below comes from real products in-market — no vanity metrics.
Long-term or returning clients
Clients work with us 4+ years or come back for more.
Team with 5+ year tenure
A senior team built on retention, not churn.
In investment attracted
Capital raised by startups using products we built.
FIG. 03 — RESULTS SUMMARY, 2019–2026SOURCE: INTERNAL · AGGREGATED ACROSS 40+ ENGAGEMENTS
Our Approach
How We Extend Your Team
Team extension fails when the added engineer creates more management load than they remove. We design for the opposite — capacity that integrates cleanly.
Matched to your existing team
We match on your stack, seniority gap, and communication style. The engineer fits the team you have — not a generic profile pulled off a bench.
Codebase onboarding done properly
Our engineers spend their first days reading code, mapping architecture, and learning your conventions. They adapt to your standards, not the other way around.
Direct line, no middle layer
Your team lead talks to the developer directly through your Slack and your tools. No account manager relaying messages and slowing things down.
Low coordination cost
We measure success by how little extra management you need. A good extension developer reduces your backlog without adding to your meeting load.
Selected Work
Projects We've Shipped
§ REVIEWSCLIENT FEEDBACK
What our Clients Say
Every review is real and verifiable — straight from Clutch, Upwork, and LinkedIn. Nothing cherry-picked.
★★★★★
The quality for price is really high.
Prosperity is always happy to share their knowledge.
★★★★★
It feels like they're part of the team, and they make good decisions without needing a lot of support.
I presented Illia with a problem, he helped me think through of a way to solve the problem and best of all: him and his team were able to actually implement it! He's got great entrepreneurial instincts.
★★★★★
I think what sets them apart is the range of skills they bring to a project, as well as their level of knowledge.
★★★★★
From start to finish, the entire experience was nothing short of exceptional.
The team at Prosperity was super fast to respond to all our queries and requests. Their commitment to quality was evident in their extensive testing, ensuring a smooth and seamless integration of SSO into our apps.
★★★★★
The project was an enjoyable and positive experience.
I like the personal touch they have. They offer good bang for the buck.
★★★★★
When I ask Prosperity to do something that doesn't make sense, they suggest alternatives that work better.
★★★★★
They were honest, direct easy to communicate, had great quality and excellent value.
The build quality was very good overall and bugs were fixed quickly.
★★★★★
I'm really happy I chose to work with Illia to develop a face measurement taking iOS application.
He has been very communicative, got the work done on time, delivered a quality application, and was able to solve some technical challenges related to determining landmark points on ARKit-derived 3D model.
FM
Verified Upwork Client
CLIENT · ARKIT FACIAL MEASUREMENT APP
★★★★★
It was such a pleasure to work with Illia for the development of our App.
He is super experienced and has excellent work ethics. Illia delivered our project on time and never missed any milestones along the way. He is our number 1 developer to go to for any technical knowhow.
CA
Verified Upwork Client
CLIENT · CAMERA APP
★★★★★
Prosperity is an amazing team and provide excellent work.
I am looking forward to working with them again in the future. Total class act and very professional, plus excellent code.
CP
Verified Upwork Client
FOUNDER · CRUISE PLATFORM
★★★★★
Illia was fantastic to work with.
Understood requirements well, worked with me to brainstorm ways to achieve the functionality needed, tested and debugged, and delivered a crash-proof, pixel-perfect iPad application.
iP
Verified Upwork Client
CLIENT · IPAD ART INSTALLATION
★★★★★
Illia has done a really great job.
He's a strong communicator through and delivers high quality work. I can highly recommend him for future work. I will be hiring him again in future!
NA
Verified Upwork Client
CLIENT · NATIVE IOS APP
★★★★★
The team was a great help to us in this project!
The delivery and the workflow were very professional. The team went beyond the scope, they took more responsibility and provided us with the required expertise, although the project was complicated. We are happy to recommend this team!
AR
Verified Upwork Client
CLIENT · NFT APP WITH AR
★★★★★
Fast delivery, high code quality, and ability to communicate with the rest of the team.
PB
Verified Upwork Client
CLIENT · PYTHON BACKEND & REACT NATIVE APP
★★★★★
Illia and his team, delivered and completed the project on time.
They are highly professional, excellent communication skills and the entire project was completed smoothly without any issue along the way. We highly recommend them to anyone and have continued working with them on our ongoing projects and future work.
RF
Verified Upwork Client
CLIENT · REACT FRONTEND
★★★★★
The developer communicated well and delivered high-quality code, we already rehired him again.
RN
Verified Upwork Client
CLIENT · REACT NATIVE APP
★★★★★
Working with Prosperity has been a pleasure.
They will do everything possible make your project perfect.
iA
Verified Upwork Client
CLIENT · IOS APP
★★★★★
Illia helped us with frontend development in Swift.
His excellent technical skills are paired with very good communication skills, made it very easy for us to onboard him onto a running project and complete the work as planned.
SM
Verified Upwork Client
CLIENT · SWIFT MOBILE APP
★★★★★
We're impressed with their transparency and ability to solve very challenging technical problems.
★★★★★
The quality for price is really high.
Prosperity is always happy to share their knowledge.
★★★★★
It feels like they're part of the team, and they make good decisions without needing a lot of support.
I presented Illia with a problem, he helped me think through of a way to solve the problem and best of all: him and his team were able to actually implement it! He's got great entrepreneurial instincts.
★★★★★
I think what sets them apart is the range of skills they bring to a project, as well as their level of knowledge.
★★★★★
From start to finish, the entire experience was nothing short of exceptional.
The team at Prosperity was super fast to respond to all our queries and requests. Their commitment to quality was evident in their extensive testing, ensuring a smooth and seamless integration of SSO into our apps.
★★★★★
The project was an enjoyable and positive experience.
I like the personal touch they have. They offer good bang for the buck.
★★★★★
When I ask Prosperity to do something that doesn't make sense, they suggest alternatives that work better.
★★★★★
They were honest, direct easy to communicate, had great quality and excellent value.
The build quality was very good overall and bugs were fixed quickly.
★★★★★
I'm really happy I chose to work with Illia to develop a face measurement taking iOS application.
He has been very communicative, got the work done on time, delivered a quality application, and was able to solve some technical challenges related to determining landmark points on ARKit-derived 3D model.
FM
Verified Upwork Client
CLIENT · ARKIT FACIAL MEASUREMENT APP
★★★★★
It was such a pleasure to work with Illia for the development of our App.
He is super experienced and has excellent work ethics. Illia delivered our project on time and never missed any milestones along the way. He is our number 1 developer to go to for any technical knowhow.
CA
Verified Upwork Client
CLIENT · CAMERA APP
★★★★★
Prosperity is an amazing team and provide excellent work.
I am looking forward to working with them again in the future. Total class act and very professional, plus excellent code.
CP
Verified Upwork Client
FOUNDER · CRUISE PLATFORM
★★★★★
Illia was fantastic to work with.
Understood requirements well, worked with me to brainstorm ways to achieve the functionality needed, tested and debugged, and delivered a crash-proof, pixel-perfect iPad application.
iP
Verified Upwork Client
CLIENT · IPAD ART INSTALLATION
★★★★★
Illia has done a really great job.
He's a strong communicator through and delivers high quality work. I can highly recommend him for future work. I will be hiring him again in future!
NA
Verified Upwork Client
CLIENT · NATIVE IOS APP
★★★★★
The team was a great help to us in this project!
The delivery and the workflow were very professional. The team went beyond the scope, they took more responsibility and provided us with the required expertise, although the project was complicated. We are happy to recommend this team!
AR
Verified Upwork Client
CLIENT · NFT APP WITH AR
★★★★★
Fast delivery, high code quality, and ability to communicate with the rest of the team.
PB
Verified Upwork Client
CLIENT · PYTHON BACKEND & REACT NATIVE APP
★★★★★
Illia and his team, delivered and completed the project on time.
They are highly professional, excellent communication skills and the entire project was completed smoothly without any issue along the way. We highly recommend them to anyone and have continued working with them on our ongoing projects and future work.
RF
Verified Upwork Client
CLIENT · REACT FRONTEND
★★★★★
The developer communicated well and delivered high-quality code, we already rehired him again.
RN
Verified Upwork Client
CLIENT · REACT NATIVE APP
★★★★★
Working with Prosperity has been a pleasure.
They will do everything possible make your project perfect.
iA
Verified Upwork Client
CLIENT · IOS APP
★★★★★
Illia helped us with frontend development in Swift.
His excellent technical skills are paired with very good communication skills, made it very easy for us to onboard him onto a running project and complete the work as planned.
SM
Verified Upwork Client
CLIENT · SWIFT MOBILE APP
★★★★★
We're impressed with their transparency and ability to solve very challenging technical problems.
● HOVER TO PAUSEREAD ALL REVIEWS ON CLUTCH →
Mobile Apps Across Every Vertical
Deep domain knowledge across core verticals — so you get a team that understands your market, not just your code.
How It Works
From Capacity Gap to Merged PRs
01
Gap Assessment
We map your stack, current team, and where you need more capacity. You get a clear profile of the engineer that fills the gap.
02
Matching & Interview
Within 3–5 business days we present matched engineers. You interview directly and choose who joins your team.
03
Codebase Onboarding
Repo access, environment setup, and structured ramp on your architecture. Most engineers open their first pull request in week one.
04
Embedded Delivery
The engineer works inside your sprints and reviews. We check in regularly to keep the fit working for your lead and your roadmap.
01
Gap Assessment
We map your stack, current team, and where you need more capacity. You get a clear profile of the engineer that fills the gap.
02
Matching & Interview
Within 3–5 business days we present matched engineers. You interview directly and choose who joins your team.
03
Codebase Onboarding
Repo access, environment setup, and structured ramp on your architecture. Most engineers open their first pull request in week one.
04
Embedded Delivery
The engineer works inside your sprints and reviews. We check in regularly to keep the fit working for your lead and your roadmap.
Why Prosperity
Why Teams Choose Us for Team Extension
Most augmentation firms hand you a CV and walk away. We stay accountable for how well the engineer integrates.
Engineers who adapt to you
Our developers have worked across many client codebases. They're used to learning a new architecture fast and matching an existing team's standards.
Domain-aware matching
If your team works in fintech, healthcare, or AI integration, we match an engineer who understands the domain — not just the language and framework.
Honest about when extension isn't right
If your process is unclear or your team is too small to absorb someone, extension will fail. In that case we'll recommend a dedicated team or a different model instead.
Two-week fit guarantee
If the engineer isn't the right fit after two weeks, we replace them at no extra cost. We'd rather correct a mismatch fast than defend it.
FAQ
Frequently Asked Questions
Team extension adds engineers into your existing team, working inside your process and reporting to your lead. A dedicated team is a separate, self-contained squad that owns a roadmap. Choose extension when you already have a working team and just need more hands in it.
§ 13 — Contact
Book a call.
Leave with a plan.
A direct line to the engineers who'll actually do the work. We'll map your problem to a scope and timeline in one short conversation.
Trusted & verified
Clutch★★★★★5.0 · 12 reviews
AgencyReviewVerified · Software AgenciesOr emailinfo@theprosperity.team