Full-Stack Web Apps. FastAPI Backends. Resilient Infrastructure.
We design and ship production-grade Next.js web applications, engineer high-throughput Python (FastAPI / Flask) APIs, and execute zero-downtime server migrations & ongoing maintenance.
99.98%
Uptime Delivered
35+
Migrations Executed
<45ms
Avg API Latency
100% Type-Safe
Production Code Deployed
Specialized Development & Infrastructure Services
From modern Next.js web platforms and lightning-fast FastAPI/Flask backends to zero-downtime server migrations and 24/7 Linux maintenance.
Full-Stack Web Applications
From complex SaaS platforms to bespoke internal dashboards, we design and build complete web applications with blazing-fast server-rendered performance, real-time interactivity, and enterprise-grade security.
Core Technologies & Tools
What You Receive & Deliverables
- Modular Next.js App Router architecture with Server Components
- Optimized Core Web Vitals (LCP, INP, CLS) for top-tier SEO and conversions
- End-to-end authentication, RBAC (Role-Based Access Control) & sessions
- Clean REST / GraphQL / WebSocket real-time synchronization
- Automated unit, integration, and E2E testing pipelines
Production-Grade Tech Stack
We don’t chase fleeting trends. We build and maintain systems using battle-tested technologies that deliver peak velocity, type safety, and rock-solid reliability.
Next.js 15 (App Router)
ExpertReact Server Components, dynamic streaming, and SSG/SSR hybrid architecture.
React 19
ExpertModern hooks, Actions, Optimistic UI updates, and transitions.
TypeScript
ExpertStrict end-to-end type safety preventing runtime bugs.
Tailwind CSS
ExpertUtility-first modern design system with bespoke dark mode and fluid animations.
FastAPI
ExpertAsynchronous Python framework with Pydantic validation and high-speed ASGI performance.
Flask
ExpertLightweight, flexible Python microframework for custom business logic and microservices.
Node.js / Express
Production-TestedEvent-driven server-side JavaScript and scalable backend services.
Python 3.12+
ExpertModern Python with typing, asyncio concurrency, and clean modular structure.
PostgreSQL
ExpertACID-compliant relational database with JSONB, indexing, and connection pooling.
Redis
ExpertIn-memory data store for caching, pub/sub, rate limiting, and queue management.
SQLAlchemy & Alembic
ExpertPython ORM and reliable, zero-downtime database schema migration pipelines.
Prisma ORM
ExpertNext-generation TypeScript ORM with schema verification and type safety.
Kubernetes (K8s)
ExpertProduction container orchestration, pod autoscaling, ingress control, and self-healing nodes.
Docker & Docker Compose
ExpertReproducible multi-stage containerization for local dev and isolated production workloads.
Helm Charts
ExpertKubernetes package management for versioned, reproducible cluster application deployments.
Linux Administration
ExpertUbuntu/Debian server setup, systemd services, SSH hardening, and kernel tuning.
Cloud (AWS / GCP / VPS)
ExpertCost-effective cloud architecture, EC2/ECS, S3, RDS, and DigitalOcean droplets.
Nginx
ExpertHigh-performance reverse proxy, SSL termination, rate limiting, and gzip/brotli.
CI/CD & GitHub Actions
ExpertAutomated test execution, lint checks, container publishing, and zero-downtime deploy.
Network Security & Firewalls
ExpertUFW, nftables, Fail2ban intrusion defense, DDoS mitigation, and SSL/TLS hardening.
Vulnerability Scanning (SAST/DAST)
ExpertContinuous automated vulnerability audits, CVE scanning, and code penetration analysis.
OAuth2 & OIDC / Keycloak
ExpertStandards-compliant authorization servers, Single Sign-On (SSO), and token security.
Role-Based Access Control (RBAC)
ExpertGranular permissions, multi-tenant isolation, and MFA / biometric Passkey flows.
ESP32 & FreeRTOS
ExpertDual-core task scheduling, hardware DAC composite video generation, and real-time control loops.
CAN Bus 2.0B (ISO 11898)
ExpertDifferential 500kbps automotive bus networking, packet filtering, and failsafe heartbeats.
Arduino & AVR (ATmega328P)
ExpertHardware interrupt pulse counting (RPM, speed, fuel), watchdog timers, and PWM fan drivers.
LiFePO4 & Closed-Loop PID
ExpertSoftware-defined alternator field coil regulation with strict 13.6V / 20A CV/CC protection.
ADS1115 ADC & Power Relays
Expert16-bit precision ADC telemetry, multi-stage relay ignition sequencing (ACC, IGN, Starter).
Featured Case Studies & Results
Explore how we engineered scalable web applications, executed high-stakes server migrations without downtime, and developed real-time embedded automotive systems.
Guratike.rw — High-Concurrency Ticketing & Booking Platform
Nationwide ticketing, seat reservation, and digital booking platform engineered to handle massive concurrent traffic for major concerts, sports events, and intercity bus routes across Rwanda.
Flash ticket drops caused severe server crashes, ticket double-booking race conditions, and drop-offs during Mobile Money (MTN MoMo & Airtel Money) checkout flows.
Engineered an ultra-responsive Next.js 15 App Router booking interface with real-time seat locks in Redis, high-throughput FastAPI booking queues, and fault-tolerant Linux/Docker cloud infrastructure.
25,000+ users
Peak Flash Traffic
0.00% (Strict)
Double-Booking Rate
<650ms avg
Checkout Latency
DashCore W202 — Automotive Telemetry & LiFePO4 Alternator Regulator
Dual-MCU (ESP32 + Arduino Nano) automotive telemetry instrument cluster, closed-loop LiFePO4 alternator regulator, and smart keyless push-to-start system communicating over high-speed CAN Bus.
Safely charging a sensitive LiFePO4 start battery from an unregulated alternator without overcharging, while capturing high-frequency engine pulses (RPM, speed, fuel) and rendering real-time composite video without UI latency.
Engineered a split dual-MCU architecture: an engine-bay Arduino Nano dedicated to interrupt pulse counting and PWM fan control, linked via 500kbps CAN Bus to a cabin ESP32 running FreeRTOS. Core 0 executes a real-time PID loop (10-bit PWM) driving alternator field coils with strict 13.6V/20A CV/CC limits, while Core 1 generates composite video HUD telemetry and coordinates a 3-relay push-to-start sequence.
<50ms latency
CAN Bus Cycle
13.6V / 20A strict CV/CC
Battery Regulation
100% Zero-Lockup
Watchdog Failsafe
ApexHealth Telehealth Platform
HIPAA-ready clinical consultation platform featuring live video queues, medical record synchronization, and real-time doctor availability.
The client faced slow page loads (>4.5s) on their legacy React SPA and frequent API timeouts during peak booking windows.
Engineered a greenfield Next.js App Router frontend with React Server Components, paired with an asynchronous FastAPI backend and PostgreSQL read-replicas.
0.8s (82% faster)
Page Load Speed
18,000 req/min
API Throughput
99.99%
System Uptime
FinFlow Legacy Backend Migration & Modernization
Complete zero-downtime migration of a mission-critical legacy Flask monolith handling $4M+ monthly transactions to Dockerized microservices.
A monolithic 7-year-old unmaintained Python codebase running on unpatched bare-metal servers with no CI/CD and severe database lockups.
Designed a dual-write migration strategy, upgraded the runtime to modern Python 3.12, containerized services with Docker Compose, and deployed automated GitHub Actions with automated rollback.
0.00 seconds
Migration Downtime
-58% monthly
Server Hosting Cost
From 3 hrs to 4 mins
Deployment Time
Strata Fleet Tracking & Telemetry Engine
Real-time GPS telemetry ingestion engine and client dashboard displaying active commercial fleet routes and predictive maintenance alerts.
Ingesting 50,000 telemetry pings per minute overwhelmed the previous database, causing data loss and sluggish driver dashboards.
Built high-throughput FastAPI endpoints with Redis stream queues and Celery background workers, writing batched writes to time-partitioned PostgreSQL.
18ms avg
Ingestion Latency
12,500+
Concurrent Vehicles
0.000%
Data Loss Rate
Enterprise Server Fleet Hardening & 24/7 Maintenance
Consolidation, OS security hardening, and ongoing automated maintenance for 28 Linux cloud servers hosting multi-brand eCommerce stores.
Vulnerable server configs, missing security patches, irregular manual backups, and unexplained midnight server crashes.
Implemented central logging, automated kernel security patch pipelines, UFW/Fail2ban hardening, automated encrypted S3 backups, and Prometheus/Grafana monitoring.
Reduced to 0
Security Vulnerabilities
100% Verified
Backup Reliability
Zero in 18 months
Unscheduled Outages
Predictable, Engineering-Led Process
No guesswork or runaway timelines. Every engagement follows a disciplined, transparent execution path from technical discovery to post-launch maintenance.
Discovery & Technical Architecture Audit
We thoroughly assess your existing code, server health, database schemas, or greenfield requirements to construct a concrete, risk-free technical blueprint.
Milestone-Driven Sprint Execution
We build your application or execute your server migration in bi-weekly iterative sprints with clean, type-safe code and frequent staging preview links.
Stress Testing, Security & Quality Assurance
Every endpoint, UI component, and server configuration is rigorously tested for high concurrency, security vulnerabilities, edge-cases, and speed.
Zero-Downtime Deployment & Launch
We orchestrate the production switchover with zero disruption to active users, seamless DNS transitions, and verified database integrity.
Proactive Maintenance & SLA Support
We don’t disappear after launch. We carry your systems with 24/7 uptime monitoring, security patch management, automated backups, and iterative upgrades.
Flexible Partnership Models
Choose the engagement model that matches your business needs: milestone-based project sprints, safe migrations, or ongoing server maintenance.
Project-Based Sprint
Ideal for custom web applications, new MVP launches, or targeted system rewrites.
Ideal For:
Startups and businesses building a new web application or modernizing an existing service.
What's Included:
- Full architectural planning and database schema design
- Production-grade Next.js App Router frontend
- FastAPI, Flask, or Node.js high-performance backend
- Docker containerization and automated CI/CD pipeline
- Full source code ownership and detailed technical documentation
- 30 days of post-launch bug warranty and support
Server & Infra Retainer
Dedicated ongoing maintenance, monitoring, security patches, and emergency support.
Ideal For:
Businesses with live web apps or servers that require dependable uptime and zero stress.
What's Included:
- 24/7 uptime and server resource monitoring (CPU, RAM, Disk, Traffic)
- Scheduled security patching and Linux kernel updates
- Automated daily off-site encrypted backups & disaster recovery drills
- Fast-response priority incident resolution (<1 hour SLA)
- Continuous performance tuning and database index maintenance
- Dedicated Slack/Teams communication channel
Migration & Upgrade Sprint
For legacy systems that need safe, zero-downtime modernization or cloud transitions.
Ideal For:
Legacy Python 2/3 apps, unmanaged on-prem servers moving to AWS/GCP, or monolithic decoupling.
What's Included:
- Full dependency and code vulnerability audit
- Shadow-run / dual-write migration architecture (0 data loss)
- Server cutover with zero downtime for existing customers
- Automated rollback safety switches
- Nginx, SSL, and DNS configuration
- Comprehensive post-migration validation report
What Technical Leaders Say About Mpeka
Hear from CTOs, founders, and VPs of engineering whose systems we built, migrated, and maintained.
“Mpeka delivered our Next.js and FastAPI telemedicine platform ahead of schedule. Their attention to database efficiency and sub-50ms response times transformed our patient booking experience. A true engineering partner who carries the technical weight.”
Marcus Vance
CTO, Apex Health Systems
Scope: Full-Stack Next.js & FastAPI Architecture“Migrating an 8-year-old monolithic Flask backend with live transactions seemed terrifying. Mpeka executed the entire cloud migration and Dockerization without a single second of downtime. Our hosting costs were sliced in half.”
Elena Rostova
VP of Engineering, FinFlow Global
Scope: Monolith to Microservice Migration & DevOps“Our IoT ingestion service was constantly falling over during traffic surges. Mpeka restructured our async Python workers and introduced Redis streams. We now handle 50k pings/min without breaking a sweat.”
David K.
Founder & CEO, Strata Telematics
Scope: High-Throughput Telemetry Backend & MonitoringLet Mpeka Carry Your Next Technical Milestone
Tell us about your project, legacy server migration, or custom application. We reply within 24 hours with an actionable technical plan.
Direct Communication Channels
Whether you need a dedicated development sprint, an emergency server rescue, or a steady monthly maintenance retainer, we’re ready.
DIRECT INBOX
contact@mpeka.rwCODE & OPEN SOURCE
github.com/mpeka-devRESPONSE TIME SLA
Guaranteed response within 24 hours
- Zero lock-in: You retain 100% full source code and IP rights.
- Strict non-disclosure agreement (NDA) honored.
- Transparent milestone estimates with no hidden fees.