lamine.cloud status: checking… Work with me
Available for DevOps / Platform / SRE roles

I keep critical platforms running.

Mouhamadou Lamine Gueye, senior DevOps / Platform / SRE engineer. I deploy, secure and operate cloud & on-prem infrastructure in high availability: Kubernetes, IaC, CI/CD, observability. 5+ years, multi-cloud, banking-grade.

See the work Download CV
prod · request path: users → WAF → ALB → pods → data
5+
years in production ops
~50k
req/hour at peak, on a <$300/mo AWS budget
13s→1s
p95 latency, cut under load
5 clouds
AWS · GCP · DO · Vultr · on-prem
// signature work

Incidents survived, platforms shipped.

COSSUEL · AWS ECS Fargate

Surviving the Grand Magal traffic wall

A national compliance-certificate platform buckling under event traffic. I re-architected it for high availability and taught it to scale before the storm, not after.

  • Peaks of ~50,000 req/hour, up to 10× during the Grand Magal of Touba
  • Predictive pre-scaling + reactive ECS target-tracking on request rate
  • p95 latency 13s → ~1s; multi-AZ, health checks, failover
  • All of it on a lean budget, <$300/mo AWS bill after rightsizing & autoscaling
CBAO Senegal · Data as a Service

A bank's data platform, from bare metal to production

Stood up and now operate the bank's on-prem Data as a Service platform in HA, provisioned entirely as code, secured end to end.

  • On-prem Kubernetes via Ansible + Helm, deploys through Jenkins
  • Operate NiFi · Kafka · Spark · Trino · Iceberg · OpenMetadata · Superset
  • DevSecOps: Keycloak SSO, Harbor, CA & secrets, cluster hardening
  • Full observability: Prometheus · Grafana · ELK
Gravitas Group · Security

Bringing a compromised cluster back from the dead

Forensic investigation and recovery of a breached Kubernetes environment for an identity / eKYC platform, then hardening so it wouldn't happen twice.

  • Restored services & backups after compromise
  • Secret rotation, access isolation, governance
  • Supervision & alerting rebuilt from scratch
Telrai · Co-founder & CTO

Running a medical-imaging platform, end to end

I co-founded Telrai ↗, a teleradiology platform, and I run all of its infrastructure and operations.

  • Full AWS estate: EC2, S3, AWS HealthImaging (DICOM store) with SigV4 proxying
  • CI/CD via Bitbucket Pipelines + Docker; hardened fallback deploy path
  • Cloudflare edge (TLS, cache, WAF) + nginx reverse-proxy tuning
  • Multi-site hosting (app / viewer / admin), health checks & monitoring in production
COSSUEL / Senelec · Data migration

MySQL → MongoDB, zero downtime

Migrated a live production database from MySQL to MongoDB with no service interruption, I built the whole procedure end to end, from schema reshaping to a verified cutover.

  • Node.js pipeline: transform, bulk sync, row-level compare & deep-verify
  • Continuous incremental sync (cron + PM2), zero downtime
  • Automated data-integrity checks before cutover
  • Idempotent & re-runnable, recovered cleanly from a mid-run data loss
// deployment log

Experience

Reverse-chronological, like any good log.

DevOps / Platform Engineer

CBAO Senegal, Data as a Service (DaaS)
Dec 2025 - Sept 2026

Deploy, secure and operate the bank's on-prem data platform in high availability. Kubernetes as code, full data stack run & reliability, DevSecOps and end-to-end observability.

KubernetesAnsibleHelmJenkinsKeycloakPrometheusGrafanaELK

DevOps & Backend Engineer

Finetech Groupe
2022 - Jul 2026

Docker containerization and GitLab CI/CD; deploy & operate banking APIs (Spring Boot, FastAPI). PostgreSQL/Redis admin; interbank payment integrations. Seconded to CBAO from Dec 2025 to Sept 2026.

DockerGitLab CIPostgreSQLRedisSpring Boot

DevOps Consultant, AWS Infra Optimization

COSSUEL
2025

Re-architected an ECS Fargate + ALB platform for HA and event-scale: predictive + reactive autoscaling, p95 13s→~1s, major cost reduction, ALB/CloudWatch observability. Also ran a zero-downtime MySQL→MongoDB migration.

AWS ECSFargateALBAutoscalingMongoDB

DevOps & Cloud Infrastructure Consultant

Nicomatic Senegal
2024 - 2025

Built complete cloud infra (ECS, EC2, RDS, ALB, Route 53, ECR) for internal SaaS. ECS Fargate + Docker, GitLab CI/CD, NiFi clusters, Prometheus/Grafana; DigitalOcean & Vultr deployments.

AWSRoute 53DigitalOceanVultrNiFi

Co-founder & DevOps / Infrastructure Consultant

Trivia-L
2021 - present

Cloud infrastructure consulting for startups & SMEs across AWS, GCP, DigitalOcean and Vultr. End-to-end delivery: architecture, automation (Docker, Kubernetes, Terraform, CI/CD), security, monitoring and cost.

TerraformKubernetesGCPCI/CD

Co-founder & CTO

Telrai ↗, teleradiology / medical imaging
2024 - present

Co-founded Telrai, a teleradiology platform for remote sharing and interpretation of medical imaging (DICOM, OHIF viewer, AWS HealthImaging). As CTO I own the whole stack: Spring Boot backend, React front-ends, AWS infrastructure, CI/CD, Cloudflare edge and security.

AWS HealthImagingDICOM / OHIFSpring BootReactCloudflareCI/CD

Web Development Instructor (part-time)

GoMyCode
Jan - Jun 2025

Taught web development part-time, mentored students through hands-on projects, code reviews and live debugging, from fundamentals to shipping working apps. Explaining systems simply is half of good engineering.

TeachingJavaScriptWebMentoring
// toolchain

The stack I run in production.

Orchestration

KubernetesHelmDockerECS FargateK3s

IaC & CI/CD

AnsibleTerraformJenkinsGitLab CIGitHub Actions

Cloud

AWSGCPDigitalOceanVultrOn-prem

Observability

PrometheusGrafanaELKCloudWatch

Networking & Security

KeycloakHarborNginxCloudflareWAFVPN / DNS

Data platforms (run)

NiFiKafkaSparkTrinoPostgreSQLRedis
// off the clock

Chess, at the national level

Member of Senegal's national men's chess team (2021 & 2023), representing the country in Malawi and Budapest. The same discipline I bring to reasoning about failure domains and blast radius.

▶ I break down infrastructure & code on YouTube : @Late_Night_Coder
♥️ Proud husband to @Samasifit, cheering on Samasifit.com every day.
// track record

Recognition

🥇 1st Prize · Myriad Connect 2023 (Myriad Group & Gainde2000)
🥈 2nd Prize · Senelec
🥉 3rd Prize · SETER

🎓 Engineering degree · École Supérieure Polytechnique (ESP), Dakar.

// writing

Notes from production.

All writing →

More notes on the way: Kubernetes on bare metal, NiFi in production, zero-downtime migrations.

// freelance

Short engagements, when you need a platform person now.

Alongside permanent roles I take one-off missions. Remote, in French or English, on an existing platform — usually one someone else built.

// audit

Take over a platform nobody owns

Someone left, documentation is thin, and nobody is sure what runs where. I inventory it, get access back under control, write down what I find, and fix what is dangerous first.

Done on a sabotaged Kubernetes estate: access recovered, data recovered, cluster back in production.
// migration

Move it without a maintenance window

Account to account, on-prem to cloud, one database engine to another. The plan states what breaks, what rolls back, and how you know it worked.

74 services rebuilt in a new AWS account in one night; a MySQL to MongoDB switch with zero downtime.
// cost

Cut the cloud bill, on measurements

Not a spreadsheet of theoretical savings: a measured baseline, the levers ranked by what they actually return, and the ones I apply.

One estate taken down 39 %. Found 170 USD/month of extended support on a 13 USD/month database.
// reliability

Know why it broke, before it breaks again

Alerting that fires on the right thing, dashboards someone reads, and enough captured history to reconstruct an incident to the minute rather than guess at it.

Read the post-mortem in the writing section — that timeline exists because the platform was instrumented for it.

Typically a few days to a few weeks. Tell me the problem, not the job title — I will say if I am the wrong person for it.

// open a channel

Let's talk reliability.

Open to Senior DevOps / Platform / SRE roles and freelance missions, remote or relocation. If your platform needs to stay up under pressure, I'm your engineer.