We Build Software That Survives Real African Constraints.
No Corporate Fluff. Pure Craft.
Welbred Technologies is an Accra-based software engineering firm and venture studio. We do not have layers of non-technical managers, Jira bureaucracy, or slide-deck architects. We engineer high-throughput payment rails, distributed message streams, and commerce platforms that withstand volatile cellular networks and high-concurrency bursts without failing.
Engineering Culture: Africa-First Resilience
Most software is designed for stable fiber and polite APIs. We engineer for the reality of West African telecommunications: intermittent 3G drops, asynchronous telco timeouts, and bursty high-concurrency commerce drops.
Africa-First Resilience
We do not assume constant fiber, zero packet loss, or polite payment callbacks. We design software for telco USSD timeouts, erratic cellular latency, and out-of-order webhooks. Every critical write has an idempotent cryptographic key and a dead-letter retry bus.
Boring, Battle-Tested Tech
We reject resume-driven complexity. A disciplined, modular monolith built on FastAPI, Nuxt 3, and PostgreSQL easily handles 50,000+ req/min with predictable memory footprints, trivial containerization, and instant local debugging.
Strict Domain Isolation
Business rules live in pure domain services, decoupled from HTTP frameworks and database drivers. This makes refactoring fear-free, testing blazingly fast, and ensures code written today remains legible and maintainable a decade from now.
Architecture Studio
No middle management layers. Engineers interface directly with technical leads.
0-Loss Standard
Every financial transaction has double-entry verification and immutable logs.
Production First
Code runs in Docker containers mirroring AWS ECS environments with automated CI.
Accra Headquarters
Engineered in Ghana for West African enterprises and global production systems.
@router.post("/v1/webhooks/momo/reconcile", response_model=LedgerAck)
async def reconcile_momo_callback(
payload: MoMoCallbackPayload,
idempotency_key: str = Header(..., alias="X-Idempotency-Key"),
ledger: DoubleEntryLedger = Depends(get_ledger_engine),
stream: RedisStreamsBus = Depends(get_event_stream),
) -> LedgerAck:
"""
Africa-First MoMo Settlement: Handles duplicated telco callbacks
and out-of-order webhooks with zero ledger double-charge.
"""
# Distributed lock prevents concurrent duplicate execution
async with stream.acquire_lock(f"lock:momo:{idempotency_key}", ttl_ms=8000):
if await ledger.is_already_settled(idempotency_key):
return LedgerAck(status="DUPLICATE_IGNORED", code=200)
# Atomic double-entry commit in PostgreSQL (SERIALIZABLE)
entry = await ledger.commit_settlement(
idempotency_key=idempotency_key,
amount=payload.amount,
currency="GHS",
provider_ref=payload.transaction_id,
)
await stream.publish("events.payment.settled", entry.dict())
return LedgerAck(status="SETTLED", balance_verified=True)Open Architectural Roles
We are looking for engineers with high agency and deep technical craftsmanship. Click each role to inspect our mission, architecture responsibilities, and technical standards.
The Builder's Submission Protocol
We do not filter candidates through HR keyword scanners or ask you to invert a binary tree on a whiteboard. We care about proof of work: code you have actually committed, systems you have deployed, and tricky architecture trade-offs you have navigated.
Send a GitHub repository, a live production link, a database schema, or an architecture document you authored.
Tell us about a concurrency lock, a race condition, or a performance bottleneck you diagnosed and fixed.
Every submission is reviewed directly by our Lead Systems Architect in Accra. Prefer direct email? Transmit to careers@welbred.com.