Code audit and technical audit services
Code audits and technical audits of existing software: code quality, architecture, security, dependencies and licences, performance, infrastructure and cloud costs, and technical due diligence for investors and buyers, ending in a written list of risks ranked by impact, with senior engineers for your team or an audit delivered end to end.
What a technical audit covers
Code quality
Structure, duplication, test coverage, warnings and the parts of the code everyone is afraid to touch, read by senior engineers in the language and framework the system uses.
Architecture
How the parts fit together, where they depend on each other more than they should and what will stop the system growing with the business.
Security
Secrets in the code, authentication and access control, input validation and known vulnerabilities, checked against the OWASP Top 10, with a penetration test added where it is needed.
Dependencies and licences
Every library and framework listed with its version, its support status, its known advisories and its licence, so upgrades and legal risks are visible.
Performance and infrastructure
Slow pages and queries, database design, hosting, backups, monitoring and deployment, with the cloud bill read line by line for what can be cut.
Technical due diligence
An independent view of the software behind an investment or an acquisition: what state it is in, what it would cost to keep and what could go wrong.
Hire code auditors
Dedicated code auditors
Code auditors who join your team full time, work in your tools and process, and report to your lead. You interview them; we carry the Ukrainian contract, payroll, invoicing and leave.
Code review projects
A defined piece of code review with a scope, a fixed plan and a named lead on our side who owns the result and reports progress in your channels.
Ongoing code review
Code review as a continuing service: the same people every month, a backlog you prioritise, and hours you can see in our portal and on the invoice.
The dedicated team page explains how specialists join your team, and the outsourcing page covers project delivery, take-overs and how we charge.
Who works on your code review
Software architects
Architecture, scalability and the overall verdict
Senior engineers
Code review in the system’s own language and framework
Security engineers
Vulnerabilities, secrets and access control
DevOps engineers
Infrastructure, deployment, backups and cloud costs
QA engineers
Test coverage and the quality of existing tests
How we audit software
An audit starts with read-only access to the repositories, the infrastructure and the documentation, and nothing is changed while it runs. It is the same review we carry out before taking over any system another team wrote, and it ends the same way: a written list of risks ranked by impact, each with its evidence and the effort needed to fix it.
The report is written for two readers: a summary for the people who make decisions, and the detail for the engineers who will act on it. The fixes can be made by your own team, or by ours, starting with the risks that matter most.
Other research and audits we carry out
Market and competitor research
Market and competitor research before a launch or a market entry: desk research, competitor products and pricing, customer interviews, surveys and market sizing, in a written report that answers your question.
Discovery and technical specification
A discovery phase before a build: workshops, requirements, the first release, architecture, a Figma prototype and an estimate, written into a technical specification any team can build from.
R&D and proof of concept
Proof of concept, prototypes and R&D for ideas that may not work yet: AI and data experiments, integration spikes, device prototypes and research reports for grant-funded projects.
Website audit
Website audits of technical SEO, speed and Core Web Vitals, WCAG 2.2 accessibility, security headers, analytics and UX, with every problem ranked by impact and the fixes made by the same team.
Questions about code and technical audits
How much does a code audit cost?
It depends on the size of the system, the number of technologies in it and what the audit has to answer, so we answer with a written estimate after a first look at the repositories. The scope, the report date and the price are agreed before the audit starts.
Will our current developers know about the audit?
That is your decision. An audit works best with their help, because they can explain why things are the way they are, but it can also be carried out from read-only access alone, for example before an investment or a change of supplier.
Can you fix what the audit finds?
Yes. The engineers who carried out the audit can fix the problems they found, in order of impact, as dedicated developers in your team or as a project with its own plan and estimate.
How quickly can code auditors start?
When the right code auditor is available, the start is gated only by your interview and the NDA and IP assignment. Otherwise we run a search, which typically produces candidate profiles within two to three weeks, and nobody starts until you have said yes.
How do we hire code auditors through BigTree108?
Tell us the work, the seniority and the hours you need. We propose one or two people with their profiles, you interview them the way you would interview your own hire, and you sign one agreement with BIG TREE 108 LLC and receive one invoice a month.
Who owns the work they produce?
You do. Every specialist has a signed contract with BigTree108 that assigns all work product to the company, and our agreement with you assigns it onward. Code, designs and documents are delivered into your own repositories and tools, not kept where only we can change them.
Need to know the state of your software?
Tell us what the system does, what it is built with and the decision the audit should inform. You get an answer within one business day: a proposed scope, the report date and the price.