DevOps, legacy code takeover & 24/7 system maintenance
SLA-guaranteed DevOps engineering and source code maintenance for European enterprises. Whether you are running a high-traffic legacy platform, an inherited codebase, or an AI-generated (vibe-coded) application that needs production hardening — Sudo provides 24/7 monitoring, emergency incident rescue, and continuous optimization.
Why does managing existing codebases and servers become an operational bottleneck?
Unexplained peak-hour server crashes, fragile legacy or AI-generated (vibe-coded) codebases with no documentation, prohibitively expensive local DevOps salaries in Europe, and security vulnerabilities silently drain your budget and stall growth.
The bottleneck
Peak-hour server crashes and unexplained 502/504 downtime
Fragile legacy or vibe-coded systems that no one dares to touch
Prohibitive cost of hiring full-time DevOps & Senior Engineers in Europe
Ransomware exposure, data leaks, and unverified backups during crises
Sudo’s engineering solution
Under-30-minute SLA emergency rescue & root-cause database/server tuning
Instead of merely rebooting servers as a temporary band-aid, Sudo’s 24/7 engineering team responds within 15 to 30 minutes. Using deep APM telemetry (Prometheus, Grafana, New Relic), we isolate the exact root cause — memory leaks, disk I/O bottlenecks, exhausted connection pools, or SQL deadlocks — and eliminate the issue permanently.
Once stabilized, we implement long-term architectural improvements: multi-tier caching (Redis, Nginx micro-cache, Cloudflare CDN), database index optimization, and load balancing so your system handles 5x–10x traffic surges without inflating cloud server bills.
Full codebase audit, production hardening & isolated staging refactoring
Sudo’s senior engineers audit your entire codebase (PHP/Laravel, Node.js, Python, Next.js, Go, Viber/WhatsApp APIs, or AI-generated vibe code), map data flows, and containerize applications with Docker. We build a 100% isolated Staging mirror so every bug fix, security patch, or feature update is thoroughly tested before touching Production.
Rather than pushing an expensive, multi-month rewrite from scratch, we execute surgical, incremental refactoring: stripping out dead code, fixing AI-generated logic flaws, optimizing heavy queries, and writing clean technical documentation so your product can scale reliably.
On-demand Senior Engineers (€25/hr) & monthly retainers saving up to 75%
Instead of relying on a single expensive in-house generalist, Sudo gives you immediate access to a cross-functional engineering squad — Cloud Architects (AWS, GCP, Akamai/Linode, Hetzner), Database Administrators, and Senior Backend Developers — at a transparent rate of €25/hour or a predictable monthly retainer.
You eliminate single-person dependency, staff turnover risks, and recruitment overhead. Every task is tracked via transparent timesheets, Git commits, SLA response guarantees, and monthly infrastructure health reports.
Multi-layer WAF hardening, encrypted off-site backups & disaster recovery drills
We deploy multi-layered defense: Cloudflare WAF for DDoS mitigation and bot filtering at the edge, combined with strict Linux server hardening, disabled unused ports, two-factor SSH key authentication, and automated vulnerability scanning.
Database and codebase snapshots are encrypted and replicated daily to independent off-site object storage (AWS S3 / EU Cloud Storage). Crucially, we conduct periodic Disaster Recovery Drills to verify that your backups can be restored cleanly and rapidly under any emergency scenario.
Transparent code maintenance, server operations & DevOps pricing
Flexible engagement models tailored for European startups and enterprises: on-demand senior engineering by the hour, managed monthly SLA retainers, or dedicated DevOps infrastructure squads.
On-demand senior engineer
Billed by actual tracked hours (100% transparent timesheet)
European startups, founders with AI/vibe-coded apps, or internal tech teams needing senior engineers to fix urgent production bugs, audit/refactor existing code, or configure servers without long-term contracts.
- Zero minimum monthly contract lock-in.
- Granular, task-by-task timesheet & Git commit tracking.
- Direct execution by Senior Backend, Full-Stack & Linux SysAdmin engineers.
- Complete code handover and technical documentation after each task.
Managed system & code retainer
Covers auditing, 24/7 monitoring & maintenance for 1–3 cloud servers
E-commerce stores, SaaS products, and operational web apps needing a reliable engineering partner to keep systems running smoothly, prevent downtime, automate off-site backups, and resolve monthly code/server issues.
- 24/7 real-time monitoring (uptime, CPU, RAM, Disk I/O, SSL).
- Guaranteed incident response within 30 minutes.
- Automated daily encrypted backups to independent off-site cloud storage.
- Monthly slow-query SQL optimization and cache tuning.
- Regular OS security patching and core framework updates.
- Includes dedicated monthly senior engineering hours for bug fixes & minor updates.
Dedicated DevOps & SRE solution
Tailored multi-server architecture & 24/7/365 SLA coverage
High-traffic e-commerce platforms, FinTech/SaaS ecosystems, and mobile backends running multi-server, microservices, or Kubernetes clusters requiring a strict 99.9%+ Uptime SLA and continuous DevOps engineering.
- Strict enterprise SLA: <15-minute emergency response, 24/7/365 on-call engineers.
- Cross-functional squad: Cloud Architect (AWS/GCP/Linode/Hetzner), DBA, and DevOps Engineer.
- High-availability architecture: Load balancing, auto-scaling, and Master-Replica DB clustering.
- Automated zero-downtime CI/CD pipeline design and standardization.
- Multi-region disaster recovery setup with periodic recovery drills.
- Monthly architectural performance reviews and cloud cost (FinOps) optimization.
Operational standards & Sudo’s 3 core advantages
We combine deep DevOps infrastructure mastery with senior full-stack software engineering — eliminating vendor finger-pointing, stabilizing fragile codebases, and safeguarding your business continuity.
Unified mastery of both server infrastructure and source code
Typical hosting providers only check hardware and blame the application code when crashes occur. Sudo’s engineers master both cloud infrastructure and backend code logic — fixing issues from slow SQL queries all the way to application controllers.
- Eliminates finger-pointing between hosting admins and software developers.
- Stabilizes legacy codebases and refactors AI-generated (vibe-coded) applications for production scale.
- Multi-tier caching (Redis, Nginx micro-cache) cutting direct database load by up to 80%.
Proactive 24/7 monitoring & SLA-backed incident rescue
Instead of waiting for customers to report an outage, Sudo’s telemetry stack monitors resource thresholds and error rates continuously — intervening before anomalies impact end-user experience.
- 1-minute automated uptime and endpoint health checks.
- Instant anomaly alerts via Slack, WhatsApp, or Telegram upon detecting memory leaks or I/O saturation.
- 24/7/365 on-call engineers responding within 15 to 30 minutes under binding SLA.
Zero-downtime CI/CD deployment & verified disaster recovery
We standardize automated Docker and CI/CD release pipelines so new features deploy with zero downtime, backed by multi-region encrypted backups and real-world recovery testing.
- Zero-downtime rolling deployments for seamless feature releases.
- Automated daily encrypted backups to independent off-site European cloud storage.
- Periodic disaster recovery drills ensuring backups are 100% restorable at all times.
Our 5-step codebase takeover, maintenance & incident response process
Every emergency rescue, legacy/vibe-code takeover, or monthly maintenance retainer follows strict NDA confidentiality, GDPR/FADP data security, and SLA response standards.
NDA sign-off & secure onboarding
Sign a legally binding Non-Disclosure Agreement (NDA) and establish a direct communication channel (Slack / WhatsApp / Teams).
System audit & root-cause isolation
Access infrastructure under least-privilege security, inspect server logs, audit codebase architecture, and isolate exact bottlenecks.
Isolated staging fix & code refactoring
Resolve bugs, refactor fragile code, and validate all patches inside an isolated Staging environment prior to production rollout.
Load testing & off-site backup automation
Simulate peak traffic loads to verify stability and configure automated daily encrypted backups to independent off-site storage.
Git handover & 24/7 SLA monitoring activation
Commit clean code directly to your Git repository with documentation, and activate 24/7 telemetry and SLA incident protection.
Trusted by enterprise clients & long-term partners
With over 11 years of software engineering experience and offices in Switzerland and Vietnam, Sudo is trusted by over 1,000 enterprises and digital platforms for mission-critical system operations.
What our clients say about us
Read real-world feedback from CTOs, Managing Directors, and Operations Leaders relying on Sudo’s SLA maintenance, codebase takeover, and DevOps engineering.
Mr. Vu Minh Thuan
Managing Director — BBT Vietnam Trading & Manufacturing JSC
Mr. Pham Quang Phong
Chief Operating Officer (COO) — MobileCity Retail System
Or verify our independent reviews on
Frequently asked questions
Answers to common questions from European founders and CTOs regarding SLA response times, taking over existing or AI-generated (vibe-coded) systems, NDA security, and hourly vs. retainer models.
For clients on a Monthly SLA Retainer or requesting Emergency Incident Rescue, Sudo guarantees an SLA response time under 30 minutes (averaging 10–15 minutes in practice) via our 24/7/365 emergency hotline and dedicated Slack/WhatsApp engineering channels — including nights, weekends, and European public holidays.
Sudo’s senior engineering team maintains and optimizes a broad modern and legacy stack:
- AI-Generated / Vibe-Coded Stacks: Full-stack applications prototyped with Cursor, Lovable, Bolt, Replit, or v0 (Next.js, React, TypeScript, Supabase, Firebase, Node.js, Python).
- Backend Frameworks: PHP (Laravel, Symfony, WordPress Core, WooCommerce), Node.js (Express, NestJS), Python (Django, FastAPI), Golang.
- Messaging & Real-Time APIs: Viber Bot API, WhatsApp Business API, Telegram Bot, WebSockets / Socket.io.
- Databases & Caching: MySQL, MariaDB, PostgreSQL, Redis Cluster, Elasticsearch, MongoDB.
- Cloud & Infrastructure: Linux (Ubuntu, Debian, Rocky Linux), Nginx, Docker, Kubernetes, AWS, GCP, Akamai/Linode, Hetzner, DigitalOcean, Cloudflare.
Yes — this is one of our core specialties for European clients. Many startups and SMEs have either an inherited system built by a previous agency or a rapidly built AI ('vibe-coded') product that works as a prototype but suffers from security flaws, broken edge cases, or database bottlenecks in production. Sudo audits the codebase, sets up an isolated staging environment, refactors fragile logic, hardens security, and transitions your product into a stable, scalable enterprise system without forcing a costly rebuild.
100% confidential and GDPR/FADP compliant. Before accessing any repository or server, we sign a legally binding Non-Disclosure Agreement (NDA) and Data Processing Agreement (DPA). We enforce strict least-privilege access, authenticate exclusively via encrypted SSH keys, and maintain full audit logs of all administrative actions.
Yes. You can engage Sudo’s Senior Backend & DevOps Engineers on demand at 25 EUR / hour with 100% transparent task-level timesheets, or book a flexible monthly block (40–160 hours/month) to clear technical debt, fix bugs, or ship new features without any long-term lock-in.
After every emergency rescue or at the close of each monthly retainer cycle, Sudo delivers a comprehensive engineering report including:
- Root Cause Analysis (RCA) detailing what triggered the incident and how it was resolved.
- Clean, documented code commits pushed directly to your company’s Git repository.
- Before-vs-After performance telemetry (CPU/RAM load, API latency, and verified Uptime percentage).
- Actionable architectural and FinOps recommendations to reduce cloud hosting bills.
Recruiting a single full-time Senior DevOps or Backend Engineer in Switzerland or Western Europe typically takes 2–4 months and costs 8,000 EUR to 14,000+ EUR per month in salary, social contributions, and overhead — while still leaving you exposed when that person takes vacation or resigns. Partnering with Sudo gives you an entire cross-functional team (Senior Backend, DevOps, DBA, Security) with 24/7/365 coverage and binding SLA guarantees at a fraction of the cost.
Stabilize & scale your system with SUDO
Share your current system challenges below. Sudo’s Senior DevOps Engineers & Solution Architects will review your architecture and respond within 15–30 minutes for urgent incidents (or within 24 hours CET for code audits).
Europe Office: Dorfstrasse 14, 8956 Killwangen, Switzerland.
Hanoi Office: 3rd Floor, Dolphin Plaza (Towers 3-4), 6 Nguyen Hoang, Tu Liem Ward, Hanoi.
Hanoi Office: 3rd Floor, 19 Co Van, Dong Anh Commune, Hanoi.
Nghe An Office: 14th Floor (Nghe An Petroleum Building), 7 Quang Trung, Quang Trung Ward, Nghe An.
Request a codebase audit & system health check
Protected by strict NDA confidentiality and GDPR/FADP compliance. Fast response from senior engineers.