Engineering Services & Solutions

Bespoke systems engineering, high-throughput backend infrastructure, real-time Voice AI, and resilient data pipelines engineered for high-concurrency production environments.

100% Client Ownership
Complete IP & Git repository handover
Rapid Sprint Execution
1 to 4 week milestone delivery cycles
Zero Technical Debt
Type-checked, documented & tested
Guaranteed SLA
<12h response time & direct engineers
Starting from $2,500 • Full IP Ownership

High-Throughput APIs & Django Systems

Scalable Python/Django & FastAPI backends, asynchronous worker pipelines, and resilient database architectures.

We design and build custom SaaS platforms, customer portals, robust REST APIs, and high-concurrency backends engineered around your core business processes.

// Key Deliverables:
  • Modular Python backend (Django / FastAPI) with clean service-layer architecture
  • Optimized PostgreSQL schema with composite indexing, foreign keys & query profiling
  • Asynchronous task queue workers (Celery, Redis) with retry and dead-letter queues
Python Django FastAPI Node.js TypeScript React +6 more
2 to 4 Weeks Typical Sprint SLA Protected
Starting from $2,500 • 24/7 Automated Intake

Real-Time Voice AI & Telephony Agents

Sub-800ms full-duplex conversational voice agents with WebSockets audio streaming and autonomous CRM actions.

Build intelligent inbound and outbound voice systems that communicate with customers in real time, qualify leads, and perform business tasks automatically.

// Key Deliverables:
  • Sub-800ms bidirectional full-duplex WebSockets voice pipeline with neural STT & TTS
  • SIP telephony trunk integration (Twilio, Telnyx, Retell AI) for inbound & outbound routing
  • Tenant-isolated prompt injection sandboxes with live corporate knowledge base grounding
LiveKit WebRTC Retell AI OpenAI Realtime WebSockets Python Asyncio Twilio +2 more
1 to 3 Weeks Typical Sprint SLA Protected
Starting from $1,500 • Resilient Extraction

Automated Web Scraping, OCR & Ingestion

Resilient crawlers navigating complex anti-bot defenses, dynamic DOMs, and unstructured PDF gazettes.

Turn information scattered across complex websites and online portals into clean, structured, and actionable business intelligence.

// Key Deliverables:
  • Distributed asynchronous crawlers with automated proxy pool rotation and exponential backoff
  • Anti-bot evasion layer with dynamic TLS fingerprinting and browser session persistence
  • OCR extraction pipeline converting scanned PDFs and images into structured tabular data
Python Scrapy Playwright BeautifulSoup Tesseract OCR OpenCV +2 more
1 to 2 Weeks Typical Sprint SLA Protected
Starting from $2,000 • Automated Data Hygiene

Data Transformation & ETL Pipelines

Algorithmic data cleaning, type normalization, and cross-format conversion across heterogeneous schemas.

Turn messy, fragmented multi-source data (spreadsheets, CSVs, PDFs, JSON) into clean, reconciled, and normalized relational datasets ready for analytics and AI.

// Key Deliverables:
  • Automated data sanitization pipeline isolating invalid characters, malformed types & corrupt values
  • Multi-format converters seamlessly transforming between Excel XLSX, CSV, JSON, and SQL
  • High-performance vector algorithms calculating margins, financial scores, and aggregations
Pandas NumPy Openpyxl Python PostgreSQL SQLModel +2 more
1 to 3 Weeks Typical Sprint SLA Protected
Starting from $1,500 • Zero-Downtime Rollouts

Docker, Cloud Deployments & DevOps

Reproducible container environments, automated CI/CD pipelines, and hardened cloud infrastructure.

Deploy and operate applications on scalable, secure cloud infrastructure (AWS, DigitalOcean, Linux VPS) with automated testing and predictable release cycles.

// Key Deliverables:
  • Multi-stage production Dockerfiles with minimal footprint and unprivileged user execution
  • Docker Compose definitions orchestrating Web, DB, Redis, Celery workers & Nginx
  • Automated GitHub Actions CI/CD workflows for linting, testing, building, and rolling deployment
Docker Docker Compose Linux VPS Nginx AWS (EC2, S3, RDS) GitHub Actions +2 more
1 to 2 Weeks Typical Sprint SLA Protected
Starting from $1,500 • 3–7 Day Turnaround

Architecture Review & Security Audits

In-depth codebase refactoring, SQL query profiling, security hardening, and Core Web Vitals optimization.

Identify security weaknesses, slow SQL queries, and architectural bottlenecks before they cause expensive downtime or data exposure incidents.

// Key Deliverables:
  • Detailed Architectural Health Report documenting critical bottlenecks, security flaws, and fixes
  • Database query profiling audit isolating slow queries, missing indexes, and lock contention
  • Security vulnerability remediation plan targeting CSRF, XSS, insecure headers & auth weaknesses
Django Debug Toolbar Postgres EXPLAIN ANALYZE Bandit OWASP ZAP Silk WhiteNoise +1 more
3 to 7 Business Days SLA Protected

Productized Engineering Packages

Instead of ambiguous hourly billing, devManue offers structured, milestone-driven entry points to take your software from discovery to high-throughput production.

// Sprint Tier 01

Launch

For focused automations, single-purpose tools, or API microservices.
Starting $2,500
Typical Timeline: 2–4 Weeks
What is included:
  • Technical discovery & architecture blueprint
  • One core solution (custom API, scraper, or automation pipeline)
  • Database modeling & third-party API integration
  • Production deployment (Docker on Linux VPS / Cloud)
  • Complete source code documentation & IP handover
  • First 6 months free maintenance (bug fixes, security & backup reviews)
Select Launch Scope
// Sprint Tier 03

Scale

For complex AI, real-time voice, large-scale data, or SaaS platforms.
Starting $10,000
Typical Timeline: 8–16+ Weeks
Everything in Growth, plus:
  • High-concurrency distributed architecture & database sharding
  • Real-Time Voice AI / WebSockets audio pipelines & LLM tool-calling
  • High-availability multi-node cloud infrastructure (AWS / VPS)
  • Enterprise security hardening, penetration tests & compliance
  • Priority direct engineering alignment & ongoing roadmap execution
  • First 6 months free maintenance (priority fixes, health/security reviews, database & backups)
Select Scale Scope

Monthly Support & Retainer Plans

An external engineering team in your corner without the overhead of full-time hiring. Dedicated capacity for continuous feature delivery, infrastructure scaling, and guaranteed SLAs.

First 6 Months Free Maintenance Included With Every Deployment
Every deployment built by devManue includes 6 months of complimentary maintenance services (bug fixes, monthly health & security review, database & backups review) before transitioning to an ongoing monthly retainer plan.
Essential Retainer
For maintenance, security patches, and minor enhancements.
$500 / month
Up to 10 Engineering Hours
  • Bug fixes & dependency upgrades
  • Monthly system health & security review
  • Automated database backup verification
  • Standard 24h SLA response time
Select Essential
Scale Retainer
Dedicated capacity for mission-critical engineering.
$5,000 / month
Dedicated Engineering Capacity (50+ Hours)
  • Dedicated full-stack & DevOps capacity
  • High-concurrency architecture & AI engineering
  • Direct Slack / WhatsApp communication channel
  • Mission-critical < 4h SLA emergency response
Discuss Dedicated Retainer

Engineered for High-Stakes Industries

Our architectural patterns are tested in data-heavy, regulated, and automated business environments where latency, reliability, and security are non-negotiable.

Fintech & Financial Data

High-integrity double-entry ledgers, automated multi-bank statement reconciliation, credit scoring algorithms, and zero-drop payment webhook processing.

// ACID Ledgers • M-Pesa / Stripe • CDC WAL

Legal Technology

Automated government gazette crawlers, trademark and land notice ingestion, OCR extraction on scanned court records, and AI-assisted case intelligence.

// Gazette Crawlers • OCR Pipelines • RAG Search

Customer Service Voice AI

Sub-800ms full-duplex conversational voice agents for healthcare intake, appointment bookings, customer support deflection, and outbound lead follow-up.

// LiveKit WebSockets • SIP Twilio • CRM Actions

Market Intelligence & Data

Distributed browser crawlers navigating anti-bot barriers to capture real-time competitor pricing, supplier stock catalogs, and automated commercial feeds.

// Playwright • Proxy Rotations • Polars ETL

How We Deliver Software

Our proven five-phase engineering lifecycle eliminates guesswork and technical debt from day one.

PHASE 01
Understand

We learn about your business metrics, users, existing stack, and the concrete operational problem to solve.

PHASE 02
Architect

We translate business needs into data schemas, API contracts, infrastructure designs, and sprint milestones.

PHASE 03
Build

Our engineers develop clean, typed, modular code with automated tests and weekly demonstration deliverables.

PHASE 04
Deploy

We provision hardened Linux/Docker cloud environments, SSL, CI/CD pipelines, and automated monitoring.

PHASE 05
Improve

First 6 months free maintenance services (bug fixes, health & security review, database & backups), followed by dedicated retainer capacity to scale.

Have a Business Problem That Needs Software, AI, or Better Data?

Tell us what you are trying to achieve. We will help you determine what to build, how to architect it, and what it should cost—with zero obligation.

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