David B.
Fractional CTO · 18 yrs · Colombia · UTC−5
Technical Project/Program Manager
- Amazon Web Services (AWS)
- Oracle
- English
8 of 8 fractions open now
Fractional senior talent · Latin America → United States
Senior talent,
by the fraction.
Book senior engineers, designers and product leaders based in Latin America one fraction at a time. A fraction is one hour every business day. See who is open right now, reserve future capacity, lock your rate and sign a single contract with a US company.
- Senior only · 7+ years
- Public prices
- US contract & invoice
- 0–3 h time difference
Try it — pick fractions of a senior developer
Daily2 hours
Monthly≈ 42 hours
You pay$2,400/mo
Example at $1,200 per fraction. Every professional publishes their own price.
1 fraction= 1 hour per business day, about 21 hours a month
8 fractionsopen on the roster right now
12 monthsof availability and prices visible ahead
1 contractwith Nexora Technologies, Inc., in US dollars
How it works
Buy exactly the amount of senior you need
- 1
Read the roster like a calendar
Every profile shows open fractions today, the next opening date and the price per fraction for each of the next 12 months. No sales call to find out who is free.
- 2
Reserve fractions, now or ahead
Take two hours a day of a backend engineer starting Monday, or reserve a fractional CTO from March. The price on your start date is locked for the whole term.
- 3
Sign once, get one invoice
You sign an order with Nexora Technologies, Inc. Nexora contracts and pays the professional, who works on their own secured device during your business hours.
Live roster
Who has fractions open
Forward pricing
Scarce time gets a price curve
A senior person has eight fractions a day and no more. On JoboFlex each professional publishes a price calendar: when their fractions fill up, they can raise the price for engagements that start later.
That gives you a simple choice. Book early and lock today's rate, or wait and pay the price in effect when you start. Either way the number is public before you commit.
- Rate locked for your whole term, up to 12 months
- Extend at the same rate while fractions stay free
- Waitlist shows professionals where demand is
Start monthOpen fractionsPrice / fraction
This month$1,200
Next month$1,200
In 2 months$1,200
In 3 months$1,400 ↗
In 4 months$1,400
Illustrative calendar. Real calendars are on each profile.
Why fractions
The options for getting senior help, compared
| Full-time US hire | Staffing agency | Freelance marketplace | JoboFlex fractions | |
|---|---|---|---|---|
| Smallest commitment | 40 hours a week | Usually full-time | Per task or hour | 1 hour a day |
| Seniority | Depends on the search | Mixed | Mixed, self-declared | Senior only, 7+ years |
| Price visibility | Negotiated | Quote after a call | Public, varies widely | Public per fraction, 12 months ahead |
| Availability | Weeks to months of hiring | Ask a recruiter | Unknown until you ask | Live, with next-opening dates |
| Daily rhythm | Yes | Yes | Not guaranteed | Reserved hours every business day |
| Contract | Employment | Agency agreement | Platform terms per freelancer | One US agreement and invoice |
Squad builder
Compose a senior team out of fractions
Most products do not need a full-time architect, a full-time DevOps engineer and a full-time designer. They need a little of each, every day. Add fractions of different people to your squad and sign them as a single order.
Start a squadBackend engineer3 fractions
DevOps / SRE1 fraction
Product designer2 fractions
Fractional CTO1 fraction
Seven senior hours a day across four specialists, on one invoice.
Contract and compliance
A US counterparty for everything
One agreement with Nexora Technologies, Inc.
Your company signs a Master Services Agreement and order form with Nexora Technologies, Inc., the US company behind JoboFlex. Monthly invoices in US dollars.
Nexora pays the professional
Nexora Technologies, Inc. holds the contract with each professional and handles cross-border payment. You do not onboard foreign contractors.
Bring your own device
Every professional works on their own computer with disk encryption, screen lock and an up-to-date operating system, under a written device policy.
Confidentiality and IP
Professionals sign confidentiality and intellectual property assignment terms. Paid work product belongs to your company.
Questions
Frequently asked questions
What is a fraction?
A fraction is one hour per business day of a senior professional's time, reserved for your company and billed monthly. One fraction is about 21 hours a month. Two fractions means that person works on your project two hours every business day. A professional offers up to eight fractions a day.
How much does a fraction cost?
Each professional sets their own price per fraction per month, shown on their profile. A typical senior engineer is listed around $1,000 to $1,400 per fraction, so two fractions of a senior developer at $1,200 costs $2,400 a month for two hours of work every business day. There are no placement fees, recruiting fees or deposits.
Why can a future fraction cost more than one that starts today?
Professionals publish a forward price calendar. As their fractions fill up they may raise the price for engagements that start in a later month, for example from $1,200 today to $1,400 for starts three months out. The price that applies is the one in effect on your start date, and once you sign it is locked for your whole term.
What does rate lock mean?
The price per fraction on your signed order does not change for the duration of your term, up to 12 months, even if the professional raises their price for new clients. You can extend a running engagement at the same rate while the total term stays within 12 months and the fractions are still free.
How do I see who is available?
The roster is public and live. Every profile shows how many fractions are open right now, the date of the next opening when someone is fully booked, and a 12-month calendar of open fractions and prices. If someone is full you can join their waitlist or reserve fractions that open on a future date.
Who do I sign a contract with?
You sign a Master Services Agreement and an order form with Nexora Technologies, Inc., the US company that operates JoboFlex. Nexora Technologies, Inc. contracts each professional, invoices you monthly in US dollars and pays the professional. You never manage international contracts, payments or tax forms.
Where are the professionals based?
All professionals are based in Latin America, including Colombia, Mexico, Brazil, Argentina, Chile, Peru, Uruguay and Costa Rica. Their working day overlaps most or all of US business hours, so the daily fraction happens while your team is online.
Is JoboFlex only for US companies?
Yes. JoboFlex currently serves companies registered in the United States. Contracts are with a US entity, in US dollars, under US law.
Build your fractional squad
Browse live availability, pick the fractions you need and sign one order with a US company.