Downloads of apps we shipped
Combined iOS + Android installs across our products.
Staff Augmentation
Flexible Developers On Demand
Flexible developers on demand — scale your engineering capacity up for a sprint, then back down when the work eases. For startups and SMBs with uneven workloads who need senior help fast, without permanent headcount or HR overhead.
What You Get
A Product You Can Ship
01
Scale up and down on demand
Add capacity when a deadline hits, release it when the sprint ends. You pay for engineering when you need it, not on a fixed permanent payroll.
02
Senior help, fast
We match a flexible developer within days, not the months a permanent hire takes. They start senior and productive — no ramp-up bill.
03
No permanent overhead
No recruitment fees, no notice periods, no severance. Flex capacity comes without the fixed cost and HR risk of a full-time hire.
§ 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 On-Demand Flexibility Works
Flexibility only helps if the developers are good enough to be useful immediately and easy to wind down cleanly. We staff and contract for both.
Short ramp, real seniority
Flex developers are senior by default. They read a codebase fast and contribute quickly, because there's no time to spend on hand-holding in a short engagement.
Rolling, low-commitment terms
Engage by the sprint or the month, rolling, with short notice to scale down. We don't bury exit penalties in the contract.
Capacity matched to the spike
Need one developer for a feature push or three for a launch crunch? We size the help to the spike and release it when the spike passes.
Clean handover every time
Because flex work is short by nature, documentation and handover are built in. When a developer rolls off, your team keeps the context.
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 Spike to Staffed in Days
01
Capacity Request
Tell us the spike — the work, the stack, the deadline. We scope how many developers and what seniority the push needs.
02
Fast Match
Within 3–5 business days we present available senior developers ready to start. You interview and confirm.
03
Quick Onboarding
Access granted, environment ready, first tickets assigned. Flex developers are committing code within their first week.
04
Scale Down Cleanly
When the spike passes, we wind down on short notice with documentation handed over. No severance, no awkward exit.
01
Capacity Request
Tell us the spike — the work, the stack, the deadline. We scope how many developers and what seniority the push needs.
02
Fast Match
Within 3–5 business days we present available senior developers ready to start. You interview and confirm.
03
Quick Onboarding
Access granted, environment ready, first tickets assigned. Flex developers are committing code within their first week.
04
Scale Down Cleanly
When the spike passes, we wind down on short notice with documentation handed over. No severance, no awkward exit.
Why Prosperity
Why Teams Choose Us for On-Demand Developers
Flexibility is easy to promise and hard to deliver well. As a small senior agency that's shipped 40+ projects, we keep a bench of people who are genuinely good.
Senior-only flex pool
We don't fill on-demand roles with juniors to hit a margin. Short engagements need people who are productive from day one, so that's who we send.
Honest about the trade-off
Flexibility costs a small premium over a long-term placement, and it suits variable work rather than steady, long-running roadmaps. If your need is constant, a dedicated team is cheaper — we'll say so.
No lock-in, ever
Rolling terms with short notice to scale down. You're never trapped paying for capacity you've stopped using.
Repeatable when the next spike hits
Clients come back for the next launch or busy quarter. We keep your context so re-staffing is even faster the second time.
FAQ
Frequently Asked Questions
We typically present available senior developers within 3–5 business days and can have someone starting within a week or two. Because our flex pool is senior, there's no long ramp-up before they're contributing.
§ 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