Jumilton Dala Cape Town · Angola
Founder & Developer
founder · engineer Jumilton
~/portfolio $ whoami --role founder+engineer

Jumilton Dala.

I turn real problems into working systems — as the founder who lives the problem and the developer who builds the solution.

Founder Developer Cape Town · Angola Live in Production
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You have a real idea — a business model, a system, a process that could work. The gap between having an idea and having a product that actually runs is just structure and execution.

that's exactly what I do

01 about_me

Founder.
Developer.
Both, by necessity.

/* Not because I chose two careers.
   Because I needed to build what didn't exist. */
Founder Dev

I'm a software engineer and entrepreneur based in Cape Town — born in Angola, shaped by two economies. I understand what it means to have an idea with no infrastructure to support it.

That's why I build the infrastructure myself. Corex Financial Systems started as a group and a spreadsheet because that's all that existed. Today it's a full-stack fintech platform — because I built it.

When a client brings me a project, they get someone who has been on both sides of the table — the founder who felt the problem and the engineer who solved it from the ground up.

I study Computer Science while operating a live business. Every architectural decision I make is tested by the next real transaction that goes through the system.

Jumilton Dala Cape Town, South Africa · From Luanda, Angola
02 featured_work

From WhatsApp
to production system.

origin
The problem lived first
As an Angolan in South Africa, I needed to move money between AOA and ZAR. The existing systems were unreliable or didn't exist for people like me. So I started doing it myself — manually, via WhatsApp.
v0
A spreadsheet and a WhatsApp group
I was the system. I tracked suppliers, clients, rates, and margins in Google Sheets. It worked — but it couldn't scale and couldn't be trusted by someone who didn't know me personally.
v1→v2
Built the technology around the business I already understood
Because I lived every edge case and failure mode, the architecture I designed wasn't theoretical — state machines, audit logs, trust scoring, automated timeouts.
now
Corex Financial Systems — live and operational
A production-grade P2P cross-border FX platform. Built from scratch, by one person, because no one else was going to build it for the problem I actually had.
LIVE IN PRODUCTION  ·  2023 — Present
CorexFinancial Systems
● operationalv2.0.0

P2P cross-border currency exchange — AOA ↔ ZAR. Full compliance infrastructure, real-time transaction state machine, wallet management, trust scoring, and audit logging.

Java 17Spring BootPostgreSQL 15FlywayJWT AuthReact
TransactionService.java
1@Transactional
2public Transaction initiateExchange(ExchangeRequest req) {
3  var tx = buildTransaction(req);
4  tx.setState(TxState.PENDING_MATCH);
5  auditLog.record(tx, AuditEvent.INITIATED);
6  // every action leaves a trace
7  return repository.save(tx);
8}
source files
112 Java classes
database
15 production tables
corridor
AOA ↔ ZAR
status
Live & Operational
03 endila_studio

The infrastructure
where ideas
become systems.

Endila is not an agency. It's the operational layer I built to take an idea through its full journey — from problem discovery to working product. Every project follows the same discipline: understand the problem, design the structure, execute with precision.

/* Technology has real impact
   only when it is well structured
   and executed with competence. */
Corex Financial Systems
P2P cross-border FX platform — AOA ↔ ZAR. Built from a WhatsApp operation into a formal fintech product with full compliance infrastructure.
FINTECH · LIVE
Lucas — African Liquidity Operator
B2B operational infrastructure for FX liquidity routing in Africa. Human operators, WhatsApp flow, KYC, real-time state machine, and fraud prevention.
FINTECH · IN DEVELOPMENT
Elyra Studio
Client intake and project qualification system — turning the discovery process into a structured, repeatable workflow for founders and builders.
TOOLING · INTERNAL
[ Your Project ]
The next system built under Endila starts with your problem. Not your idea — your problem. That's where real products begin.
OPEN
04 how_i_work
fn_01()
The problembefore the idea
Most clients arrive with a solution already formed in their head. My first job is to get behind that solution and find the actual problem — because that's where the right architecture begins. A system that solves the wrong problem is just expensive noise.
fn_02()
Structurebefore features
I invest in getting the foundation right. A system built on solid architecture scales without chaos. One built fast to impress breaks at the worst moment — when real users and real money are involved.
fn_03()
Ownershipnot just delivery
I bring a founder's mindset to every project. I don't just write what was asked — I question what doesn't make sense, flag what will fail at scale, and treat your product like I built it for myself.
05 tech_stack

Tools I trust
in production.

Not a list for the CV. Technologies I've shipped real systems with — under real pressure, with real money moving through them.

backend/
Java 17Spring BootSpring SecurityFlywayJWTREST API
frontend/
ReactJavaScriptHTML / CSSTailwindNode.js
data & infra/
PostgreSQL 15Git / GitHubDocker
domain expertise/
FintechP2P SystemsFX ExchangeComplianceAudit LoggingState Machines
06 get_in_touch

Got an idea
that needs
to become real?

I work with founders and businesses who have a real problem and need someone who will treat their project like it's their own — from the first conversation to the last commit.

Let's Talk
contact.sh
$ echo $LOCATION
  Cape Town, South Africa

$ cat links.txt
  github.com/jumiltondala
  linkedin.com/in/jumiltondala

$ cat availability.txt
  Freelance · consulting · product builds

$
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