Elixir/Erlang System Audit
Get a comprehensive technical assessment of your Elixir/Erlang codebase. Identify stability risks, scalability bottlenecks, and architectural issues before they impact production. Walk away with a prioritized roadmap to stabilize, scale, and future-proof your system.
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You've Built an Elixir/Erlang System—But Can It Scale Under Real Load?
Your team chose Erlang/Elixir for fault tolerance and concurrency. But as traffic grows, questions emerge: Are your supervision trees configured correctly? Do concurrency bugs only surface at scale? Is your OTP implementation following best practices, or creating hidden technical debt?
Without deep expertise in BEAM VM internals, distributed systems patterns, and production-grade OTP architectures, you're operating without visibility into the reliability and scalability of your foundation. Traffic spikes expose memory leaks. Crashes happen without clear root causes. Extending the codebase becomes slower and riskier with each sprint.
This audit delivers the technical clarity your leadership needs to invest confidently in growth—and the actionable roadmap your engineering team needs to execute immediately.
What's Included
Comprehensive Technical Audit Report
A detailed analysis covering:
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Code quality assessment: readability, maintainability, consistency across teams
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Architecture review: service boundaries, data flow, coupling, modularity
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OTP usage patterns: GenServers, supervisors, process design, fault tolerance implementation
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Concurrency patterns: process isolation, message passing, state management, race conditions
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Performance analysis: bottlenecks, memory usage patterns, latency sources, throughput constraints
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Scalability evaluation: horizontal scaling readiness, distributed system patterns, cluster configuration
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Security review: authentication flows, data handling, secret management, input validation
Operational readiness: observability, logging, metrics, deployment practices, rollback procedures
Improvement Plan & Roadmap
Top 5 critical fixes with clear implementation guidance:
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Quick wins (1-2 sprints) + structural improvements (long-term scalability)
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Each recommendation includes severity, effort estimate, expected impact, and implementation steps
Executive Readout Session
1-hour presentation covering findings, business impact, investment requirements, and Q&A with technical leadership
Prerequisites (from You)
Code & Infrastructure Access
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Codebase access: Read access to relevant repositories (GitHub, GitLab, Bitbucket)
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Infrastructure visibility: Read-only access to production logs, monitoring dashboards, and deployment configurations
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Documentation: Architecture diagrams, API specifications, deployment guides, runbooks (if available)
Optional but valuable: Access to CI/CD pipelines, infrastructure-as-code configurations, AWS/GCP console (read-only)
Collaboration Sessions
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2-3 hour live walkthrough: Your team walks through application flows, key system components, and current pain points
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1-2 follow-up calls: 30-60 minute sessions for clarification and validation as questions emerge during the audit
Async communication: Slack/email access for quick questions during the audit period
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Pricing & Timeline
Investment: Starting from €6,000
Timeline: 1–2 weeks from kickoff to final report delivery
Pricing depends on codebase size, system complexity, and depth of focus areas. Timeline assumes timely access to required documentation, systems, and team availability for walkthrough and follow-up sessions.
Words from our partners
Dan White
Co-Founder, Localvore
“
I appreciate Crafting Software because we wouldn’t be here if we’d gone through another round of not having the right team.
There would be no business and we wouldn’t get any investment opportunities if Crafting Software didn’t work out for Localvore — straight up, there would be no Localvore.
Ted Gay
Co-Founder, Athena
“
It’s easy to work with Crafting Software — they’re all very good people.
The team excels at project management. We’ve changed courses a few times, and the Crafting Software team has been willing to adjust to the number of resources we need. Overall, they’ve been a great partner who understands our vision.
Joshua Hall
VP of Product, Reva Technology
“
I’ve worked with plenty of teams over the last 20 years, and Crafting Software is top-notch.
They think about second- and third-order problems of how they can do their jobs better and how they can impact their customers effectively. That’s uncommon in my experience.
On top of that, they clearly take pride in their work.
Elixir/Erlang System Audit FAQ
1. What size codebases and systems can you audit?
This audit is designed for production Elixir/Erlang systems ranging from 10,000 to 500,000+ lines of code. Whether you're running a monolithic Phoenix application, a distributed OTP system with multiple nodes, or a microservices architecture built on Elixir, the audit methodology scales to your complexity. For very large systems (multiple repos, complex distributed architectures), the timeline may extend to 3 weeks.
2. Do you need full production access, or can you work with staging environments?
Production access is not required. Read-only access to logs, monitoring dashboards, and deployment configurations provides sufficient visibility. If production access is restricted due to compliance requirements, access to realistic staging or pre-production environments works well. The key is seeing the system under representative load conditions—either through production observability data or load testing results from staging.
3. How technical is the final report? Will our CTO and engineering team both find it useful?
The audit delivers two complementary views. The executive summary translates technical findings into business impact—risk levels, cost implications, timeline estimates for remediation. Your CTO walks away understanding where stability risks exist, what it costs to fix them, and how issues impact growth plans. The detailed technical report provides your engineering team with specific code locations, architectural diagrams, performance metrics, and implementation guidance they can act on immediately. Both audiences get exactly the information they need without wading through irrelevant details.
4. What if we've already identified some problems, can the audit focus on specific areas?
Absolutely. The audit adapts to your priorities. If you already know memory leaks occur under high load but can't locate the source, the audit focuses deep on memory profiling and process lifecycle analysis. If your concern is scalability before a major launch, the emphasis shifts to load testing analysis, database query optimization, and horizontal scaling readiness. During the initial walkthrough, you define focus areas, and the audit allocates depth accordingly while still covering critical baseline checks across the entire system.
5. Will you actually run our system, or just review code and architecture?
Both. The audit includes static code analysis, architecture review, and documentation assessment. But it also involves dynamic analysis—reviewing production logs, analyzing monitoring data, examining performance under load (via your existing load tests or observability tools), and tracing actual request flows through the system. If load testing infrastructure doesn't exist, recommendations include how to implement it. The goal is understanding not just how the code is written, but how it actually behaves under real-world conditions.
