About Us

Your partner in agentic automation

We design, build, and deploy autonomous agents on the Microsoft stack. No generalists. No experiments. A senior team out of Nashville that ships production AI for companies that need agents running, not demoed.

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Team collaboration in modern office
Creative team brainstorming
Team meeting and planning
Collaborative workspace
Business strategy session

What we've shipped

$100M+
In value delivered
to clients
15+
Years building
enterprise systems
285%
Average efficiency
gain for clients
5M+
Users on systems
we've built

“We started AppStream because we kept seeing the same thing — companies spending six figures on AI strategy and ending up with a PDF. We build the agents. We put them in production. That's the whole pitch.”

JT

Justin Tannenbaum

Co-Founder & CEO

Our values

Principles that guide our work

Meet the people behind the keyboards

Our team combines deep engineering expertise with hands-on experience in enterprise environments. We work closely with clients' internal teams to ensure clarity, alignment, and quality delivery.

01
JT

Justin Tannenbaum

Co-Founder & CEO

02
LC

Lukasz Chmielowski

Co-Founder & CTO

03
PS

Piotrek Szyperski

Head of Engineering

04
CB

Cesar Bustamante

Founding Sr. Full Stack Engineer

05
BB

Bartek Bienkowski

Founding Sr. DevOps Engineer

06
TR

Takami Rodriguez

Sr. Full Stack Engineer

07
IA

Ilia Andrienko

Sr. Front End Engineer

08
DB

Daniel Bukala

Sr. Product Manager

09
LW

Lukasz Wachnik

Sr. Full Stack Engineer

10
MK

Mikolaj Kaminski

Sr. Software Engineer

11
BS

Bartek Szyperski

Full Stack Software Engineer

12
EQ

Ernesto Quispe

Sr. Product Designer

13
OK

Oleksandr Kotenko

Sr. Front End Engineer

14
WG

Will Gray

Head of Go-to-market

15
DL

Drake Lankford

Intern

16
TL

Taylor Larson

Sr. Product Manager

+

You

Join Our Team

We're always looking for experienced engineers and product-minded professionals who enjoy working on complex, AI first systems.
Get in touch

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Build with us

We're always looking for engineers, architects, and product thinkers who ship.

Customer stories

Don't take our word for it

Real results from real engagements. Here's what it's like to work with us.

ConTech Company

What truly set this development firm apart was their exceptional technical expertise combined with business acumen.

CEO

ConTech Company

AutoTech Company

They functioned more as strategic partners invested in our success than as technical vendors.

CEO

AutoTech Company

HealthTech Company

Thanks to AppStream's expertise we were able to translate a bold idea into a powerful product.

CTO

HealthTech Company

SaaS

Justin managed the project very well.

GTM Director

SaaS

FinTech Company

AppStream delivered production-ready code faster than our internal team expected. They didn't just build what we asked for — they challenged our thinking and made the product better.

VP of Product

FinTech Company

EdTech Company

We went from concept to a fully working MVP in under eight weeks. AppStream made a complex project feel simple.

Founder

EdTech Company

PropTech Company

Their team integrated seamlessly with ours. Communication was clear, timelines were met, and the quality of work exceeded what we've seen from much larger firms.

CTO

PropTech Company

Logistics Company

AppStream took ownership of the problem, not just the ticket. That mindset made all the difference for us.

Head of Engineering

Logistics Company