Code Audit Services

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    SMART SOLUTION

    Get an in-depth audit of your Python codebase

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    A Python code audit is a professionally executed, comprehensive examination of your application’s source code to assess its quality, maintainability, and compliance with tried-and-true practices. Surpassing mere bug detection, a code audit uncovers architectural flaws, performance bottlenecks, and security risks that can compromise your project’s long-term success. For Python-based applications implemented using Django, Flask, FastAPI, or other frameworks, a code audit ensures that your website, data pipelines, APIs, and automation tools perform efficiently, resiliently, securely, and at scale.

    Why Python Code Audit Matters

    Benefits of Code Audit

    Code audit services from PLANEKS are a proactive measure to enhance the quality and reliability of your Python software. A thorough review guarantees that your codebase is production-ready and maintainable when scaling a Django-based SaaS product, optimizing Flask APIs, or hardening a FastAPI microservice. It uncovers hidden inefficiencies, enforces development standards, and strengthens your application’s architecture, setting a solid foundation for ongoing delivery and growth.

    Early bug detection before deployment

    A code audit helps determine logic errors, edge-case mishandlings, and integration issues before they’re rolled out to become production incidents. Our experts will easily identify these issues, minimize downtime, prevent regressions, and save significant debugging time in the long run.

    Enforcing Pythonic conventions (PEP8, DRY, readability)

    Python brings maximum value with clean, readable code. Within our code audits, we enforce conventions like PEP8, the DRY principle, and modular structure, making your code easier to maintain, scale, and hand off between teams.

    Improving performance in compute-heavy or I/O-bound applications

    Inefficient loops, blocking I/O calls, and redundant operations can quietly drag down performance. With PLANEKS, you can obtain a thorough audit that refactors performance pain points to enhance throughput and responsiveness, which is crucial in data processing, automation, or real-time applications.

    Securing critical components (auth, APIs, data handling)

    Secure code review services, handled by our dedicated agency, can elevate your app’s protection posture by identifying unsafe serialization, vulnerable authentication logic, improper input validation, and misconfigured access controls in APIs and data flows.

    What We Review in Your Python Codebase

    Our Code Audit Services

    A profound code audit can only be provided when the team possesses experience, depth, and technical precision. Professionals from PLANEKS dive deep into the internals of your Python project to examine every critical layer from request handling to deployment logic. We work toward not just fixing what’s broken but also designing a more scalable, secure, and high-performance system using proven Python development principles. We tailor our audit to your stack, be it Django, Flask, FastAPI, or just a Python-based solution, ensuring your application is ready for production and market competition.

    Security & Vulnerability Analysis

    Security holds the number one spot on the list of our priorities. We examine your codebase for common vulnerabilities, including SQL injection flaws in raw queries, cross-site scripting (XSS) in templates, and SSRF risks in file upload and URL-handling components. We assess the use of security headers, CSRF protection, and input sanitization mechanisms. Our experts also flag outdated or unmaintained third-party packages that could expose your app to known CVEs. In case your authentication or session handling logic deviates from established leading practices, we provide targeted recommendations to immediately enhance it.

    Code Quality & Best Practices

    PLANEKS ensures that your code follows Pythonic idioms and adheres to PEP 8, the Python Enhancement Proposal standards, making your code readable, maintainable, and team-friendly. As part of our secure source code review services, we refactor redundant logic, tightly coupled components, and inconsistent naming conventions to align with modern software design methodologies. We also detect and remove dead code, enforce the DRY ("Don't Repeat Yourself") principle, and structure functions and classes to support team collaboration and further enhancements.

    Performance & Optimization

    Our audit pinpoints inefficient queries, blocking I/O calls, and unoptimized loops that silently degrade performance. PLANEKS experts carefully analyze response times and throughput in API-intensive applications, suggesting opportunities to leverage asynchronous programming where it brings the most value. Aside from that, we review how memory and Central Processing Unit (CPU) resources are consumed under load, proposing caching strategies and lazy evaluation techniques, also referred to as call-by-need, when appropriate.

    Architecture & Scalability

    We assess the structural integrity of your application. This means verifying that your apps adhere to a modular and reusable design. In this context, our experts assess how effectively the code separates concerns between views, models, serializers, and services. This part also involves assessing your use of caching, pagination, and database indexing - critical indicators of whether the system will scale cleanly under heavier traffic or data volumes.

    Testing & Coverage

    A strong test suite is foundational for long-term maintainability. We review your current unit and integration tests to ensure they’re meaningful and properly scoped. If gaps exist, we provide actionable recommendations to improve test coverage and stability. PLANEKS also evaluates your CI pipeline (e.g., GitHub Actions, GitLab CI) to ensure that automated testing is reliable, efficient, and designed to catch issues early in the development cycle. We assess how well your pipeline integrates with testing tools, enforces code quality, and supports rapid, error-free deployments.

    Case studies

    Proud projects make us excel

    HOW WE DO IT

    Our Python Code Review Process

    The PLANEKS team follows a structured process that blends automated tools with expert insight. Each audit we execute is customized to your project’s needs and reviewed by senior Python developers to ensure absolute transparency, depth, and long-term value.

    01

    Access setup

    The process starts with setting up access to your repository via GitHub, GitLab, Bitbucket, or a shared archive. We also request a brief overview of your project’s goals, architecture, and any specific concerns you may have. Thus, our tech experts gain the full view of your business context and prioritize what matters most during the review.
    02

    Static and manual code analysis

    We run static analysis tools to identify syntax errors, potential security vulnerabilities, and violations of coding standards. Alongside this, our engineers perform a line-by-line manual review, with a high concentration on logic clarity, flow, and code structure. With a dual approach, we catch both automated and contextual issues.
    03

    Senior Python developer review

    One of our senior engineers takes a more exhaustive look at architectural decisions, database usage, API handling, and module separation. We determine how well your code scales, how components interact, and whether Pythonic principles are followed throughout. Any risky or suboptimal patterns are flagged and annotated.
    04

    Report delivery

    You receive a comprehensive report in PDF or Markdown format. It outlines each issue throughout the codebase, its severity, and location in the code, along with technical reasoning and step-by-step recommendations. The report from PLANEKS is designed to be both developer-friendly and actionable.

    Optional 1:1 consultation

    To ensure no detail gets lost in translation, we offer a consultation where our lead reviewer walks you through the findings and answers any arising questions you may have. We clarify technical points, suggest implementation approaches, and help you prioritize fixes effectively based on your release goals.

    What you can audit with us

    Our Solutions

    We provide all-around audit solutions tailored to your business and technical needs, encompassing all aspects of your workflow. Each type of audit addresses a specific layer of your project, ensuring your application is functional, high-performing, maintainable, and ready to succeed in the market.

    Technology Audit

    We assess your entire tech stack, comprising frameworks, architecture, third-party services, and deployment pipelines with a strong focus on Python-based environments. This type of audit helps identify outdated components, security discontinuities, and opportunities for modernization or optimization.
    Technology Partner for Startups

    Software Audit

    Our team thoroughly examines your application’s codebase, covering all aspects like code quality, runtime performance, maintainability, and test coverage. It’s ideal for mature products that need a health check before scaling or replatforming.
    Software Audit Services

    Startup Audit

    When it comes to early-stage companies, we provide affordable code review services for startups. Our source code review company assesses your MVP or prototype for technical soundness, quality, and architectural flexibility. This ensures your foundation is solid before you invest further in development or go to market.
    Software Development for Startups
    99 %

    Job success rate

    5

    only by our clients

    $ 120 mln

    raised by our clients

    Who Needs Python Code Audit Services?

    Our Clients

    Python code audits are crucial for organizations that require scalable, reliable, and well-structured systems. Our methodical review can save valuable time, minimize risk, and accelerate your roadmap, which is perfect for teams preparing to launch or manage a complex Django platform.

    Startups preparing for launch or scale

    Early-stage companies can benefit from audits that ensure MVPs are technically sound, future-proof, and ready for scale. It’s the fastest approach to catch issues so they don’t turn into blockers.

    Companies migrating from legacy Python 2 or monoliths

    A code audit from PLANEKS provides a technical roadmap for safely modernizing your codebase, such as identifying components that require refactoring, legacy modules that should be deprecated or replaced, and architectural adjustments needed for transitioning to microservices or upgrading from Python 2 to Python 3.

    Fintech and SaaS businesses needing secure APIs

    Your APIs expose business-critical functions - if misconfigured, they become entry points for attackers. Here, we audit authentication flows, data validation, and authorization logic to uncover vulnerabilities that could lead to security breaches or compliance issues. Our review ensures that your APIs are robust, secure, and adhere to industry guidelines and practices.

    Django-heavy platforms needing performance and structure validation

    Complex Django systems often suffer from tight coupling and unoptimized queries. Specialists from PLANEKS investigate your architecture, modularity, and performance patterns to ensure your codebase can handle scale without breaking down.

    HOW WE DO IT

    Why Choose Our Team?

    When you partner with PLANEKS for a Python code audit, you work with engineers who blend deep technical expertise with real-world development experience. We bring hands-on experience in Python and its frameworks, supporting projects across diverse domains, incorporating financial services, e-commerce, SaaS, healthcare, and automation.

    10+ years in Python/Django development

    Our team’s extensive experience ensures a nuanced comprehension of Python’s ecosystem and common bottlenecks in real-world applications.

    Real-world experience with complex architectures

    We have successfully navigated and optimized architectures across the board, covering legacy monoliths, scalable microservices, and event-driven platforms.

    Industry-standard reporting (OWASP, PEP8, DRF best practices)

    We deliver clear, actionable reports in sync with security and style standards, helping you maintain compliance and code quality.

    Hands-on suggestions, not just theory

    Our feedback provides both a description of setbacks and practical recommendations that your developers can implement immediately.

    Expertise in Django, Flask, FastAPI, Celery, SQLAlchemy, and more

    We cover the full Python stack, ensuring every layer of your application receives expert attention and tailored advice.

    The TechStack We Work With

    Technologies We Review

    Get acquainted with the list that highlights some of the basic technologies we specialize in, though our expertise extends beyond these to cover a wide range of Python ecosystem, tools, and frameworks. At PLANEKS, our team conducts code audits aligned with your specific technologies, concepts, and project requirements, ensuring comprehensive coverage across all critical components.

    Frameworks: Django, Flask, FastAPI

    The focus of our code review managed services is on the most popular and robust Python web frameworks that power modern applications, ensuring tried-and-true practices and optimal performance.

    Async / Background: Celery, asyncio

    Our reviews cover asynchronous programming and task queues, helping improve concurrency and background job processing.

    APIs: Django REST Framework, OpenAPI, GraphQL

    We audit your API layers for security, efficiency, and maintainability, ensuring your endpoints adopt industry standards.

    ORMs & DBs: Django ORM, SQLAlchemy, PostgreSQL, MySQL, Redis

    PLANEKS examines database interactions, ORM usage, and caching strategies to streamline data handling and query performance. Our audits include N+1 query detection, index optimization, and assessment of data model integrity to ensure efficient, scalable, and reliable data access.

    Tooling: Pytest, Docker, GitHub Actions, Poetry

    Our qualified specialists review your development tools to ensure robustness and efficiency, covering automated testing, containerization, CI pipelines, and dependency management.

    FREQUENTLY ASKED QUESTIONS

    FAQ

    We often receive similar questions about how our Python code audit services work, the technologies we support, and how we handle sensitive information. To help you understand our process in detail and gain clear expectations, we’ve provided answers to the most frequently asked questions we get.

    What frameworks do you support?
    We specialize in delivering a software code audit for major Python frameworks, including Django, Flask, and FastAPI. Our expertise also covers related libraries and tools such as Django REST Framework, Celery, and SQLAlchemy, ensuring comprehensive coverage of your codebase.
    Will you sign an NDA?
    Yes. We treat your codebase and business context as strictly confidential. Signing an NDA is standard procedure - your IP is fully protected from day one.
    How long does a typical review take?
    The duration depends on the size and complexity of your project, but most Python code audits take between one and three weeks. We provide an estimated timeline upfront based on initial access and project scope.
    Can you help fix what you find?
    Yes. While our primary role is to deliver detailed reports with recommendations, we’re pleased to facilitate follow-up consulting and hands-on support to help your team implement fixes and improvements efficiently.

    If you have any further questions or would like to discuss your specific requirements in more detail, please don’t hesitate to contact us. We’re here to help you navigate the complexities of software auditing and ensure your business prosperity.

    Testimonials

    What do people praise about PLANEKS?

    Code review is vital to optimizing development workflows, cutting technical debt, and establishing your software for future growth and feature advancement. At PLANEKS, we deliver in-depth Python code audit services tailored to your product’s specific needs. Our reviews are guided by a robust background, industry-specific expertise, and a focus on practical improvements that help you progress and succeed.

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