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Freelance SAST / Static Analysis Security Developer We are looking for an experienced SAST / Static Analysis Security Developer to help us build an advanced, enterprise-grade Static Application Security Testing platform. The candidate should have hands-on experience building source-code scanners, vulnerability detection engines, static-analysis tools, compiler-based analysis systems, or AppSec products. Our goal is to develop a modern SAST platform with capabilities comparable to tools such as Semgrep, CodeQL, SonarQube, Snyk Code, Checkmarx and Veracode, using original code and legally compatible open-source technologies. Key Responsibilities Design and develop the complete SAST architecture and scanning engine. Implement AST, CFG, data-flow, taint-flow, source-to-sink and interprocedural analysis. Build customizable security rules and vulnerability detection logic. Support multiple programming languages including Java, Python, JavaScript, TypeScript, C/C++, C#, Go, PHP and others. Detect vulnerabilities such as SQL Injection, XSS, command injection, SSRF, XXE, insecure cryptography, hardcoded credentials, secrets, authentication flaws and insecure coding practices. Implement dependency/SCA integration, vulnerability deduplication and false-positive reduction. Build incremental, differential, repository and CI/CD scanning. Integrate GitHub, GitLab, Bitbucket, Jenkins and Azure DevOps. Develop vulnerability dashboards, reporting, policy management, RBAC and an enterprise web GUI. Add CWE, OWASP, CVSS and compliance mappings. Implement AI-assisted vulnerability explanation, remediation recommendations, code-fix suggestions and false-positive analysis. Optimize the scanner for large repositories, parallel processing and enterprise environments. Support Docker, Kubernetes, SaaS and on-premise deployment. Follow secure coding, API security, authentication, authorization and secrets-management practices. Preferred Experience Experience with technologies such as: Semgrep, CodeQL, Fortify,Tree-sitter, Joern, ANTLR, SonarQube, Code Property Graphs, compiler design, AST parsing, taint analysis and program analysis. Preferred languages include Python, Go, Java, Rust or C++, with React/[login to view URL] experience for the GUI. Expected Deliverables The freelancer should be capable of delivering the complete: SAST Engine + Rule Engine + Multi-Language Analysis + APIs + Enterprise GUI + CI/CD Integrations + Reporting + Deployment + Documentation + Production-Ready Source Co
Project ID: 40724187
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84 freelancers are bidding on average ₹54,410 INR for this job

With over 8 years in the industry and completed over 145 projects, I’m Ankita, your dependable choice for this intricate task. My expertise lies in Javascript, PHP and Python, the very languages that underpin your project’s key functionalities. Drawing on my past API integration experiences, and my ability to create secure, efficient application backends using Laravel and Node.js aligns closely with what you need. Having developed highly customizable web solutions ripe for identifying vulnerabilities, I find myself well-suited to build your wanted SAST Architecture and Scanning engine. Additionally, my skills in React.js can be instrumental in crafting user-driven interfaces - a pivotal aspect of this system. Even beyond the development stage, my file sync & sharing solutions knowledge could come à-propos for DevOps integration into Github, GitLab, Bitbucket as well as Jenkins and Azure DevOps.
₹37,500 INR in 3 days
7.6
7.6

From what I've understood, you’re building a production-grade SAST platform rather than a basic code scanner — with a core analysis engine, customizable security rules, multi-language scanning, CI/CD integrations and an enterprise management layer. I can help structure this as a modular platform covering source analysis, vulnerability detection, finding normalization/deduplication, repository and incremental scans, APIs, dashboards, RBAC, reporting and AI-assisted remediation. The key will be establishing a strong scanning foundation first, then expanding language coverage, integrations and enterprise workflows without making the platform difficult to maintain or scale. A few points to confirm: • Which language should be the first production-grade scanner? • Do you already have detection rules/benchmarks or should these be built from the ground up? • Is the initial target SaaS, on-premise, or both? • Do you have a preferred open-source analysis engine to extend or should we evaluate the options? Please note: The budget and timeline in my bid are placeholders. If you can share the expected MVP scope, I can break the platform into practical development milestones and start with the core analysis engine. Best Regards, Sagar Jain
₹65,250 INR in 20 days
7.1
7.1

Your SAST platform will fail compliance audits if the taint-flow engine cannot track data across asynchronous boundaries in JavaScript and Python. Most homegrown scanners miss context-sensitive interprocedural analysis, causing either 60%+ false positives or critical vulnerabilities slipping through to production. Quick questions - are you planning to support incremental scanning from the start to handle monorepos with 500K+ LOC, or will initial scans run full repository analysis? And what's your target for scan time per 10K lines of code to stay competitive with Semgrep's performance benchmarks? Here is the architectural approach: - AST/CFG/DATA-FLOW ANALYSIS: Build a unified IR layer using Tree-sitter for parsing and LLVM-style SSA representation to enable cross-language taint propagation with context-sensitive path pruning. - MULTI-LANGUAGE VULNERABILITY DETECTION: Implement language-specific semantic analyzers for Java, Python, JavaScript, PHP with shared rule DSL supporting CWE/OWASP mappings and custom policy enforcement. - CI/CD INTEGRATION + ENTERPRISE GUI: Design webhook-based differential scanning for GitHub/GitLab/Bitbucket with React dashboard showing vulnerability trends, RBAC policy management, and CVSS-scored remediation workflows. I've architected similar AppSec platforms for 2 enterprise clients that now scan 15M+ lines daily across polyglot codebases. Let's schedule a technical deep-dive to validate your rule engine requirements before committing to the build timeline.
₹50,630 INR in 21 days
7.3
7.3

As a hardcore Senior Software Engineer, nested in the world of backend development, I believe my six-year expertise would be an exceptional fit for your SAST venture. Allow me to marry my skills in Docker, JavaScript, Kubernetes, PHP, and Python to avail you technological prowess. Having built websites from scratch to deployment (including hosting), I relish providing authenticating APIs and foolproof access credentials for robust security - an invaluable asset in today's constantly evolving threat landscape. While my skillset might not include packaging singular services on such scale as CodeQL or Semgrep, my proficiency in NextJs (PWA), Angular (PWA), and NextJs (PWA) is solid plus NestJs (API) makes me quite comfortable handling the vast complexity of your proposed interface. I strongly believe in maintaining extraordinary chemistry with clients which has led me to only bid on projects where I am confident I can deliver -- and this is one such project. Lastly, what further distinguishes me is my familiarity with a range of hosting platforms such as AWS, VPS, Google Cloud as well as Digital Ocean. This means not only am I equipped to design your end-to-end enterprising solution but also have the competencies necessary to guide you through its seamless implementation whatever your preferred hosting platform is. Looking forward to being part of your extraordinary journey!
₹65,000 INR in 15 days
6.5
6.5

Hi, I reviewed your project requirements and would be happy to help you build a high-quality, scalable solution. I have 9+ years of experience developing custom software, websites, mobile applications, SaaS platforms, CRM/ERP systems, AI-powered applications, blockchain solutions, and games for clients worldwide. My expertise includes: React.js, Node.js, TypeScript, Python (Django), Laravel, CodeIgniter, WordPress, Shopify, AWS, Docker, AI Integration, Blockchain, Flutter, Android, and iOS. Before starting, I'd like to discuss your project goals, required features, timeline, and budget so I can recommend the most suitable technical approach and provide an accurate estimate. I'm available to start immediately and would be glad to schedule a quick chat. Looking forward to hearing from you! Best Regards Anju Logical Soft Tech Pvt. Ltd.
₹56,250 INR in 30 days
6.4
6.4

Building an enterprise-grade SAST platform requires a solid compiler-analysis foundation, pairing robust AST/CFG generation with high-throughput graph-based taint tracking. ✅ Core engine architecture design using Tree-sitter grammars and Code Property Graph (CPG) structures for AST, CFG, and source-to-sink taint flow analysis. ✅ Rule evaluation pipeline supporting customizable detection logic, CWE/OWASP Top 10 mappings, and false-positive deduplication routines. ✅ Isolated container execution model on Docker and Kubernetes to ensure multi-tenant repo scanning runs safely in parallel without memory leaks or host escape risks. ✅ 10+ years production experience | 400+ completed projects | 320+ five-star reviews ✅ Microsoft® Certified: MCSA | MCSE | MCT & cPanel Certified (CWSA-2) Are you planning to build the initial semantic graph layer directly on Tree-sitter with custom graph traversal, or leverage Joern / open-source CPG engines for interprocedural taint tracking? I can deliver this in 3 days for 47500 INR and can jump on it right now.
₹47,500 INR in 3 days
5.9
5.9

Static Analysis Security Developer: With 15+ years of experience, I specialize in building advanced SAST platforms that address security vulnerabilities efficiently. I will leverage my extensive background to develop a top-tier Static Application Security Testing solution tailored to your requirements. Proposed Solution: - Design a robust architecture with a comprehensive scanning engine supporting multiple languages. - Implement AST, CFG, data-flow, and taint-flow analyses for effective vulnerability detection. - Develop customizable security rules, integrating AI-assisted explanations and remediation recommendations. - Ensure seamless integration with CI/CD tools like Jenkins, GitHub, and Azure DevOps for streamlined workflows. Key Deliverables: - Complete SAST Engine and Rule Engine for multi-language analysis. - Intuitive enterprise GUI with vulnerability dashboards and policy management. - APIs for easy integration with existing systems, along with thorough documentation. - Production-ready source code optimized for performance and large repositories. Quality & Performance: - Adhere to secure coding practices and ensure compliance with OWASP, CWE, and CVSS standards. - Focus on reducing false positives and enhancing vulnerability detection accuracy. Timeline & Next Steps: - Estimated delivery in 12 weeks, with regular updates and documentation provided throughout the process. - Available for immediate collaboration to kick-start this project. Best Regards, Karthik B
₹96,250 INR in 7 days
5.8
5.8

With a skillset that spans Java, Python, JavaScript, and PHP, I bring the perfect set of tools for the task of building your Enterprise-Level SAST Platform. Having developed over 416 projects in my 14-year IT career, I have acquired substantial experience in designing source-code scanners and vulnerability detection engines - key attributes for successful software of this nature. Additionally, I have proficiency in developing on reputable systems similar to CodeQL, SonarQube, Checkmarx; testament to my ability to deliver a quality product. My strengths extend beyond just functionality. As an experienced Web and Mobile App Developer, I'm keenly aware of the importance of creating a user-friendly and SEO-friendly digital product - relevant when considering security measures such as secure coding/API security/authentication/authorization that are crucial elements in building a secure platform. Lastly, I aim to bring more than just technical expertise, but the ability to offer you an end-to-end solution incorporating UI/UX Design principles. By doing so, I ensure not only the technicalities are right but the resultant product aligns with your vision. With all these qualities combined, I guarantee to deliver not only what you need but also what sets you ahead in the market.
₹75,000 INR in 15 days
5.1
5.1

As a seasoned professional in the realm of web and mobile application development for over 9 years, I believe I bring a well-rounded skill set to the table that aligns perfectly with what you're seeking for your project. Not only am I well-versed in programming languages such as JavaScript, PHP, and Python which you require, but I've honed my proficiency in diverse areas such as Mobile Development (Android/iOS), website design, SEO, database management and logo designing to name a few. Drawing from my E-commerce and CMS background, I understand the significance of building reliable, scalable products to meet enterprise-level requirements. How can I help? Well, consider your list of expectations for the project done! From developing a robust SAST architecture with detailed scanning engine incorporating various static analysis techniques, designing the Graphical User Interface along with APIs and providing seamless deployment strategy - you will find everything delivered with utmost precision and quality by my team and me. We hold strong expertise in AI-assisted vulnerability explanation & remediation services which would be an integral addition to your platform. With a comprehensive understanding of technologies like Semgrep, CodeQL, SonarQube, Snyk Code, Checkmarx and Veracode in our repertoire; our tangible work on popular CMS platforms can also aid us devise Enterprise-ready dashboards and policy management tools for you. Negotiable pricing paired with post-p
₹56,250 INR in 7 days
5.4
5.4

Hello, I can help you build an advanced, enterprise grade Static Application Security Testing platform. My approach involves designing a robust scanning engine that implements abstract syntax trees, control flow graphs, and interprocedural taint analysis using tools like Tree sitter, Joern, or custom parsers. I will build customizable vulnerability rules to detect issues across major languages, implement incremental CI/CD scanning, and integrate AI-assisted remediation suggestions and false positive reduction. Additionally, I will develop the enterprise web GUI using React and TypeScript, with support for Docker and Kubernetes deployments. 1) Which specific core parsing engine or framework (such as Tree-sitter or Code Property Graphs) do you prefer as the baseline for multi-language AST generation? 2) What is your target timeline for completing the initial MVP scanner covering core languages like Python and JavaScript? Thanks, Bharat
₹40,000 INR in 7 days
5.1
5.1

Hi — VSTEQ Softwares builds security/DevSecOps platforms (Python/Java/JS, Docker, CI/CD). Full SonarQube/Snyk/Checkmarx parity is a large product. We propose Phase-1 MVP: multi-language scan pipeline, findings UI, CI/CD hooks, auth, and Docker deploy within ₹58,000 — then milestones for advanced rules, polyglot depth, and enterprise SSO. Bid: ₹58,000 Phase-1. Happy to map MVP vs backlog on chat. — VSTEQ / @VividusDesigns
₹58,000 INR in 7 days
5.2
5.2

With extensive experience as a PHP developer and a strong understanding of HTML, CSS, and API integration, I bring a unique set of skills that align well with the needs for your project. In particular, my proficiency in Java and PHP makes me an ideal candidate to support multi-language programming environments such as the ones you require (Java, Python, JavaScript, TypeScript, C/C++, C#, Go, PHP and more). Furthermore, I am well-versed in using GitHub, GitLab, Jenkins and Azure DevOps; all of which are important integrations for the type of project you seek to develop. Moreover, my background in responsive web design will prove especially valuable given your expressed goal to build an enterprise web GUI that adapt seamlessly across multiple platforms. Additionally, my competency in Docker and Kubernetes lends itself well to supporting your desired deployment options (SaaS and on-premise), allowing for maximum flexibility. More than just technical aptitude though, my focus on effective communication and client collaboration is a key tenet of my approach. I will ensure that your unique vision for this project is fully understood and incorporated for optimal results. Ultimately, I am confident that my skills, combined with a deep commitment to delivering top-notch solutions and satisfying clients' expectations will make me the perfect fit for this project. Let's make your SAST platform aspirations a reality!
₹37,500 INR in 7 days
4.2
4.2

Scope first, because it decides whether this succeeds. Your language list is the problem, not the ambition. Java, Python, JS, TS, C/C++, C#, Go and PHP each need their own parser, AST, CFG and taint model — C/C++ alone is a multi-year problem. A credible v1 picks one language and goes deep. Better said now than discovered at milestone three. The hard part is not detection. A rule that flags SQL injection is an afternoon. What separates a scanner developers keep from one they mute in a week is false-positive rate, which comes from interprocedural precision and sanitiser modelling. You listed FP reduction as one bullet among thirty; it is most of the engineering. On licensing, since you raised it: CodeQL's engine is not commercially redistributable, Semgrep's core is LGPL with the pro engine proprietary, and rule corpora are often licensed separately from the engines. If you intend to sell this, parse with tree-sitter (MIT) and keep the rule format your own. ₹37,500 is milestone one: one language, tree-sitter parsing, AST and CFG, intraprocedural taint source-to-sink, your own rule format, CLI scan and SARIF output so it drops straight into GitHub code scanning. GUI, CI integrations, more languages and the AI layer priced once it finds real bugs in your repos. Portfolio, plainly: I have not shipped a SAST product. My one live reference is edtechvibe.com.
₹37,500 INR in 4 days
3.4
3.4

Hi, I see the SAST platform needs to detect vulnerabilities like SQL Injection and XSS, which is a complex task. I'd approach this by designing a modular architecture that allows for easy integration of multiple programming languages, including Java, Python, and JavaScript. My focus would be on building a robust scanning engine that can handle large repositories and provide accurate results. I've found that a common mistake in SAST development is not properly handling false positives, which can lead to a lot of noise in the results. To avoid this, I'd implement a robust filtering system that uses machine learning algorithms to reduce false positives and provide more accurate results. The client can expect a reliable and efficient SAST platform that provides actionable insights into their code's security.
₹50,000 INR in 7 days
3.7
3.7

Hello. Thank you very much for your chance. I have read your project description carefully. I'm a Web, AI & Android Custom | Python, WordPress, Java with over 8 years of experience working with Python, Docker, CI/CD. I understand you need an enterprise SAST platform: a scanning engine with AST, data-flow and taint analysis, a rule engine, multi-language support, CI/CD integrations, reporting and an enterprise GUI. The real challenge is false positives. A common issue: taint analysis without sanitizer awareness flags every escaped input as a vulnerability, so developers stop trusting the tool. I would build sanitizer and sink models per language before adding rules. I can build it perfectly : First, define the architecture and the language front ends using Tree-sitter. Then, build the taint and data-flow engine with a rule format. Finally, add the API, CI integrations, GUI and reporting. Q1 - Which two languages should the first release support? Covering ten at once will delay any working scan. Q2 - I'd start with Python and Java, since their parsers are mature. Agree on that focus first? Q3 - Is this on-prem only, or SaaS too? That decides multi-tenancy and isolation work. Let's connect over a chat so we can discuss this in more detail. Best regards , Muheebwa
₹56,250 INR in 4 days
2.9
2.9

Hi, We understand that you need an enterprise-grade SAST platform with a complete scanning engine, multi-language analysis, security rules, CI/CD integrations and an enterprise GUI. We can work with Python/Go and technologies such as AST parsing, Tree-sitter/ANTLR, data-flow and taint analysis to build a modular security-analysis architecture. We can cover source scanning, customizable vulnerability rules, SCA integration, deduplication, false-positive handling, repository/differential scanning, GitHub/GitLab/Jenkins integrations, dashboards, RBAC, CWE/OWASP/CVSS mappings and Docker/Kubernetes deployment. AI-assisted explanations and remediation can be added as a separate layer while keeping the core analysis deterministic. Key questions: 1. Which programming languages should be prioritised for the first release? 2. Do you already have an analysis architecture or should we design the SAST engine from scratch? 3. Which integrations and vulnerability categories are mandatory for the MVP? 4. Do you have preferred open-source engines such as Tree-sitter, Semgrep or Joern for specific analysis layers? Note: The final cost may vary based on the confirmed scope. Best Regards, Agnidipa Team Qloron
₹75,000 INR in 7 days
3.0
3.0

Hi, I've developed several apps and systems for clients across different fields. ? The most important and difficult part of this kind of platform is keeping the taint/data-flow analysis accurate across multiple languages, since balancing detection depth (catching real vulnerabilities like SQLi, XSS, SSRF) against false positives is what actually determines whether an AppSec team trusts and keeps using the tool. ✅ In a similar project, the main challenge was building a source-to-sink taint analysis engine that stayed accurate across interprocedural code paths without drowning users in false positives, which I solved by building the analysis on top of AST/CFG representations (using Tree-sitter for multi-language parsing), implementing configurable taint propagation rules per language, and adding a deduplication and confidence-scoring layer that filtered low-confidence findings before they reached the report. ✅ As a result, the scanner correctly flagged the large majority of injected test vulnerabilities across the languages covered, the false-positive rate dropped substantially after tuning the rule engine, and scan times on large repositories stayed practical thanks to incremental/differential scanning. Best regards, Michel.
₹40,000 INR in 10 days
2.7
2.7

Hello, I can contribute to building your enterprise SAST platform with a modular architecture covering scanning, rule management, APIs, CI/CD integrations, reporting and deployment. I have 5+ years of software development experience across Python, Java, JavaScript, PHP, Docker and CI/CD, with strong focus on scalable backend systems and secure application development. The platform can be structured around an analysis engine with AST/CFG and data-flow/taint-analysis components, a customizable rule engine, vulnerability normalization and deduplication, repository/incremental scanning, and APIs for CI/CD integrations. Security findings can be mapped to CWE, OWASP and CVSS with workflows for triage and remediation. For the enterprise layer, I can implement a React/TypeScript GUI with dashboards, RBAC, policy management, reporting and repository scan history, with Docker/Kubernetes-ready deployment. AI-assisted explanations and remediation suggestions can be integrated as a separate service so they remain maintainable and controllable. I’ll prioritize clean architecture, secure APIs, performance for large repositories, documentation and production-oriented deployment. Best Regards, Shailender
₹38,000 INR in 15 days
2.0
2.0

I can design and engineer your enterprise-grade Static Application Security Testing platform from scratch using original code and open-source foundations like Tree-sitter, ANTLR, and Code Property Graphs. I will build a multi-language scanning engine supporting Java, Python, C/C++, Go, and JavaScript to perform AST, CFG, taint-flow, and interprocedural analysis to detect critical vulnerabilities such as SQLi, XSS, SSRF, and hardcoded secrets with low false-positive rates.
₹56,250 INR in 7 days
1.7
1.7

Hi, I can build an enterprise-grade SAST platform covering AST/CFG, data-flow and taint analysis, source-to-sink tracking, customizable security rules, SCA, vulnerability deduplication, CI/CD integrations, APIs, dashboards and AI-assisted remediation. I’m comfortable with Python/Go/Rust/TypeScript and tools such as Tree-sitter, ANTLR, Semgrep/CodeQL-style analysis, with focus on scalable and production-ready security scanning. 1. Which programming languages should be prioritised for the first SAST engine release? 2. Do you already have an initial rule set/architecture, or should I design the analysis engine and rule framework from scratch? if looking for expert then lets connect (expereince 7 yrs in development)
₹60,000 INR in 7 days
1.9
1.9

Nagpur, India
Member since Apr 3, 2024
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