Deecoda
Start free
ada@deecoda ~ new client incoming

Ship tickets.
Get promoted.

Code challenges without the code. You're the new hire at a dev agency, and clients send tickets full of scrambled data: legacy encodings, XOR-ed webhooks, lost keys. You crack each one by chaining operators every developer knows. Get paid in gems, climb from Intern to Staff Engineer, and compete for real cash bonuses.

Start your first day, freeTry the take-home
No code · just operators Intern → Staff Engineer Skill-only promotions Not crypto. No wallets.

Ada Mensah

● Engineering Lead · #okafor-logistics

ticket 3 / 8
Okafor's 2004 dispatch system shifts driver names by the day of the month. This record's from the 2nd. Can you crack it?

Developers on staff

0

Contracts open now

0

Gems paid out

0

Enterprise cash pools

$0

No signup · runs in your browser

Every new hire does the take-home.

It's a real tier-1 ticket, generated just for you. Chain an operator, tune it until the signal locks, and ship it against hidden payloads.

01How a contract works

The core loop
01

Take a contract

Browse the contract board. Each contract is one client with a messy data problem, a small cast and a deadline. Taking one is always free.

02

Read the ticket

Your lead and the client send tickets in a chat. The rules come out in the story: "Baba Femi shifted every record by the day of the month."

03

Build the thread

Open the thread and chain operators: shift, reverse, b64decode, xor and more. Every node shows its output, and the signal tells you how close you are.

04

Get paid, get promoted

Pay scales with the payloads your thread cracks, plus a 20% Clean PR bonus. The client replies with what you decoded, and the next ticket arrives.

// pay per ticket
gems = min + (max − min) × passRatio // + 20% Clean PR bonus if every hidden test passes on your first submit

02Meet the team

Your colleagues at Deecoda
Ada Mensah

Ada Mensah

Engineering Lead

I'll hand you tickets and tell you straight when your thread's good. It usually will be.

Tunde Bakare

Tunde Bakare

Senior Developer

Mine took four minutes. No pressure. Honestly, you'll beat me by Friday.

Efua Hart

Efua Hart

Founder & CEO

We started Deecoda because nobody else would touch the scary data. Now it's your job too.

Clients waiting on you

Okafor Logistics Tema Freight Pixel Bakery Kente Health Northline Rail Apex Bank Swift Couriers Mama Put Kitchens

03On the board right now

Taking a contract is always free

Ada's between clients

New contracts open every day. Create an account to get the next one.
Browse all contracts

04Eight tiers of client work

From legacy Caesar to robot routing
Tier 1 · unlocks at Intern

Legacy formats

Okafor Logistics · Chioma · Ops Manager

The 2004 dispatch system shifted every driver name by 3. Nobody remembers why.

Payload

GULYHU NZDPH URXWH 12

→ DRIVER KWAME ROUTE 12

shiftmirrorb64decode

Earned, never bought

A career that means something.

Career gems only go up, and they only come from shipping. Every promotion unlocks harder clients. Seniors can't farm intern contracts, and no plan sells gems, promotions or extra tests.

Skill-only promotions Bands stop farming
  1. 01InternSmall clients. Someone thinks Base64 is encryption.0–499 · T1–2
  2. 02Junior DeveloperNo docs, no keys. Figure it out.500–1,499 · T3
  3. 03Mid-level DeveloperIntegrations, weird formats, messy pipelines.1,500–3,999 · T4–5
  4. 04Senior DeveloperBig exports, structural damage, enterprise contracts.4,000–9,999 · T6
  5. 05Staff EngineerEvery contract on the board, and first pick of enterprise work.10,000+ · T1–6

05Bonuses, paid fairly

Every contract has a bonus shortlist
Enterprise contracts

$2,500

typical sponsored pool · split across the top 10

#1
30%
#2
20%
#3
12%
#4
8%
#5
8%

Free to take, fixed USD pools from sponsors. Payouts to USD, EUR, GBP and NGN accounts.

Unique ticket per developer

Keys, data and tests differ for everyone. Shared answers are useless.

Hidden tests, hidden shortlist

Tests never leave the server. You see your distance to the bonus shortlist, not other scores.

Sandboxed grading

Your code runs in isolated WASM sandboxes with no network and hard time limits.

Audited payouts

Identity checks, approach writeups and similarity checks before any cash moves.

Gems are what you've shipped. Pro is how much you work.

Free to play. Pro for regulars.

Free

Everything you need to play and climb.

$0

  • 1 active contract · 3 new contracts per day
  • Every operator, at every tier you unlock
  • Every title and every enterprise contract
  • Ask a senior with your gem balance
  • Official writeups
  • Performance analytics
Start free

Pro

More room to play

For devs who play most days.

$6/ month

  • 3 active contracts · unlimited new contracts
  • +50% contract time · 1 free senior assist per contract
  • Official solutions & writeups after each contract
  • Performance analytics
  • Pro-only clients (still title-gated)
Go Pro

Pro never sells gems, promotions or extra tests. It gives you more room to work. Prices are fixed per currency.

06Questions

Code challenges without the code. You're a developer at a dev agency: clients send tickets full of scrambled data, you crack each one by chaining operators, and you get paid in gems and promoted from Intern to Staff Engineer.

Your first day
starts now.

Free to play. Your first contract takes about ten minutes. No card, no crypto, no catch.