Java Text Parsing API

@extreamcode

Hello, I’ve read your Java Text Parsing API brief and I’m confident I can deliver a fast, modular solution that fits neatly into your microservices ecosystem. I’ve built Spring Boot backends with clear controller-service-parser separation, and I’ve designed rule-driven parsers based on regex and grammar patterns that are easy to extend without code rewrites. Expect a RESTful POST /parse endpoint handling up to 5 KB payloads, with performance tuning to meet sub-200 ms on typical hardware, and comprehensive unit/integration tests that target edge cases and performance. I’ll deliver a lightweight project with OpenAPI/Swagger docs, a concise README, and automated builds (Maven or Gradle). The architecture will be modular to accommodate future storage or deeper text analyses, with granular Git commits and clear PR summaries. I’m proposing an initial plan and cost that aligns with your 750-1250 INR budget. I’ll refine the exact cost and delivery schedule after we align on a few technical details. Asad - I sense your need for a fast, accurate, and easily extensible parsing engine that can plug into a larger workflow without forcing rewrites. I’ll craft the parser layer to be rule-driven (regex/grammar) and the REST surface to be clean and minimal, so the service remains a high-performance data-processing engine. What is your preferred format for the parser rules and output JSON schema (e.g., a declarative rules file for extension and an explicit field map for exact post-parse s

@rohitpatidar001

As a seasoned developer with 9+ years of experience, I have honed my skills in Java and J2EE Technology. Incidentally, this aligns perfectly with the project's requirements for the development of a Java-Based Text Parsing API. Not only am I well-versed in developing high-quality codebases that are efficient, reliable and scalable, but my extensive experience and knowledge in Spring Boot-based microservices and RESTful APIs also make me an ideal candidate for this project. In regard to the scope of work outlined, your lightweight Spring Boot project will be optimized for performance, making use of its unique features such as service decoupling, retries, and fault isolation. My capacity to design clean, efficient data access patterns using Hibernate/JPA demonstrates my ability to build the core parsing module with optimal performance. Furthermore, given my proficiency in distributed systems and CI/CD pipelines along with the fact that I'm no stranger to AWS deployments, I can guarantee not only short feedback loops through regular, granular Git commits and short PR summaries but also efficient deployment practices that ensure smooth releases. Following on from your explicit acceptance criteria which includes a justified emphasis on zero critical or high-severity static-analysis issues; you can rest assured that my long-standing practice of using AI tools for code quality improvement will ensure that your Java backend API is robustly tested to meet these criterias.

@Azursol

Hello, Your need for a Java backend API for text parsing aligns perfectly with my expertise in Java, Spring Boot, and API development. With over 10 years of experience, I have successfully delivered similar projects, ensuring speed, accuracy, and clean REST design. I propose setting up a Spring Boot project with distinct layers for efficient processing, implementing a rule-driven parsing module that is easily extendable. I will create REST endpoints for quick data retrieval and ensure optimal performance through rigorous testing. To add value, I recommend incorporating a modular architecture for future enhancements. I guarantee regular updates and detailed documentation for seamless collaboration. Let's discuss how we can bring your project to life. Best regards,

@SmartCodeDev

Hello I can build a high-performance Java API using Spring Boot with a clean, modular architecture. The parsing engine will be rule-driven (regex + configurable rules) and designed for easy extension without code changes. I’ll expose a fast REST endpoint (/parse) optimized to handle up to 5KB payloads under 200ms. Code will include strong validation, error handling, and structured JSON output. I will implement unit and integration tests with ~95% coverage focused on parsing edge cases and performance. OpenAPI/Swagger docs, clean README, and automated Maven/Gradle build will be included. Static analysis will be addressed to ensure no critical issues. All code will be clean, well-structured, and pushed with clear commits and PR summaries. Ready to start and deliver a reliable, extensible parsing service.

@mayankinnovative

Hi, As per my understanding: You require a high-performance Java-based parsing engine designed to function as a microservice. The core objective is to transform raw text into structured JSON based on dynamic, configurable rules. Efficiency is paramount, as the service must maintain a sub-200ms response time while ensuring the architecture remains modular enough for future persistence or advanced analysis modules. Implementation approach: Framework: I will utilize Spring Boot 3.x for its lightweight footprint and native support for high-concurrency RESTful services. Parsing Engine: I will implement a strategy pattern for the parser. By using a combination of RegEx for simple patterns and a Rule Engine (like a YAML-based mapping) for complex grammar, we can ensure rules are extendable without code refactoring. Performance: To hit the <200ms target, I will optimize the parsing hot-paths and ensure non-blocking I/O where appropriate. Quality Assurance: I will achieve the requested 95% test coverage using JUnit 5 and Mockito, coupled with Checkstyle/SonarLint to ensure zero high-severity static analysis issues. Documentation: A full Swagger/OpenAPI UI will be integrated for instant endpoint testing. A few quick questions: Will the parsing rules be updated via a dedicated endpoint, or should the service watch a configuration file? Are there specific nested structures in the expected JSON, or is it primarily a flat key-value mapping?

@ThinhSenDev

Hi, I can use create a simple app Spring Boot using Java & spec drivent development & test drivent desgin (cover > 95 % test coverage). APIs with validation for standard hardware. All of this will done in 1-2 days and with small fee. You can send me a detail and we can start right now !

@harfarooqi

Hi I have seen your job description and interested in this project. I have over a decade of java experience. Please provide me the details Thanks

@abhayk49

Hi, I’m a Java backend developer with strong experience in Spring Boot and high-performance data processing APIs. I can build a fast, modular text parsing service that returns clean, structured JSON. ✅ Relevant Expertise ✅ Java (8–21) & Spring Boot ✅ REST API design (clean, modular architecture) ✅ Regex / rule-based parsing engines ✅ High-performance processing & optimization ✅ JUnit & integration testing ✅ OpenAPI / Swagger documentation ✅ Maven / Gradle builds ? Approach • Set up layered architecture (Controller → Service → Parser) • Build a configurable parsing engine (regex/grammar-based, easily extendable) • Expose POST /parse API with <200 ms response target • Write comprehensive tests (≥95% coverage for parsing logic) • Ensure clean code, static analysis compliance, and modular design ✔ Deliverables ✔ Spring Boot API with parsing engine ✔ Structured JSON output with accurate parsing ✔ Unit & integration tests ✔ Swagger/OpenAPI documentation ✔ Build scripts + concise README I focus on performance, clean architecture, and extensible design for microservice environments. Ready to start and deliver a production-ready parsing service. Best regards, Abhay

@haitham1996

Hello,I’m a Software Engineer Udacity certified in Full Stack Web Dev and Data Analysis track with over 4+ years of experience building scalable backend systems, RESTful APIs, and automation solutions using these tracks including Java (Spring Boot), Python/Django, and modern low-code tools like N8N. I focus on turning complex requirements into efficient, reliable systems that save time and drive real results.

@sjohn117

Hi Client, I’m Sean, an AI & Full-Stack Developer with 8 years’ experience specializing in Java, Spring Boot, and NLP-driven parsing. I’ve delivered production parsing pipelines and microservice data engines that converted unstructured feeds into validated JSON for downstream services (KeyAchievement). My background in building rule-driven, extensible parsers and designing clean REST microservices aligns directly with your needs; I can do this project perfectly by implementing a modular controller-service-parser separation, a rule engine (regex/grammar) with hot-configurable rules, and lightweight Spring Boot endpoints optimized for sub-200 ms responses. I will prioritize performance, accuracy, and a small memory footprint to fit your microservices environment. I typically deliver this scope in 20 days, including tests and deployment scripts. I will provide unit/integration tests, 95%+ coverage for parsing logic, logging/monitoring, OWASP basics, clean code, docs, and an OpenAPI spec; if AI elements are used I’ll include evals and data-privacy guardrails. Can you share sample raw texts and the exact JSON schema you expect for the demo so I can design rules and tests to match your acceptance criteria? Best regards, Sean

@fizaa170

I understand you may have many great options to choose from, but getting the opportunity to work on this project would genuinely mean a lot for my growth. I’ll make sure to deliver my absolute best I’ll build a modular Spring Boot API with clean controller service parser layers and a rule driven parsing engine so you can extend logic without code changes while keeping responses under 200 ms. I’ll include high coverage tests, Swagger docs, and a reliable end to end flow with clean commits for easy review. Best regards, Muzammil

@alluankit01

Hi, I’d be glad to help build this. This is a strong fit for me because the scope is clear and backend-focused: a clean Spring Boot API, modular parsing engine, fast REST response times, strong test coverage, and documentation that makes the service easy to extend later inside your microservices environment. I can structure it properly with controller/service/parser separation, build the rule-driven parsing layer so future changes do not require rewrites, and deliver tested, production-ready code with Swagger/OpenAPI, Maven/Gradle build setup, and clear README notes. My focus will be speed, accuracy, and a clean architecture that is easy to review and maintain. Best regards. Ankit.

@huzaifaa177

Based on your requirements, I can build a high-performance Java backend API that parses raw text into structured JSON using a clean, modular architecture. I will set up a lightweight project with clear separation between controller, service, and parser layers, and implement a rule-driven parsing engine using configurable patterns so new formats can be added without rewriting core logic. The API will expose a simple POST endpoint, optimized to handle payloads up to 5 KB with fast response times, ensuring it fits seamlessly into your microservices environment. The parsing module will be designed for extensibility and accuracy, with strong validation, error handling, and performance-focused implementation. I will include comprehensive unit and integration tests targeting edge cases, along with API documentation and a clear README for setup and usage. The final delivery will include clean, production-ready code with automated builds and structured commits so you can review progress easily and extend the system in future phases.

@artur1992123

Hi I'm Artur, full-stack developer since 2011. I've built 10+ microservices and REST APIs in Java/Spring Boot over the last 2 years, including text processing and data change pipelines. For your text parsing API. I'd focus on: • Clean Spring Boot architecture with configurable rule engine • Fast JSON serialization (Jackson) • Stateless design for horizontal scaling • Complete error handling and logging I work with advanced tooling that lets me move quickly on backend work, typically 2, 3x faster than traditional development. I'll keep the code maintainable and well-documented for your broader microservices environment. Let's start with an hourly engagement so you can evaluate the approach risk-free. If you're happy with velocity and quality, we can lock in a fixed scope later. One tip to save time. if you've sample input/output pairs or a rules specification document ready. I can validate the parsing logic in the first session and avoid back-and-forth. Looking forward to it. If this bid connects. I'd appreciate a 5-star rating on it, helps me grow here. Artur

@ttobio69

Dear Client, I have read all your requirements carefully, and I understand that you need a fast, modular Java backend API that receives raw text, parses it through configurable rules, and returns clean structured JSON, with strong test coverage, clean REST design, and easy future extension. I have already worked on several similar Java and Spring Boot backend projects before, including parser-based APIs, microservice-ready architectures, REST endpoints, Swagger/OpenAPI documentation, and performance-focused backend development. With 8+ years of experience in this field, I am confident I can deliver this project cleanly and professionally. I can build the API with clear controller/service/parser separation, create an extendable rule-driven parsing engine, expose clean REST endpoints, add unit and integration tests for edge cases and speed, and provide Maven/Gradle automation, Swagger docs, and a concise README. My focus will be on accuracy, sub-200 ms response targets, maintainable architecture, and clean code with proper static-analysis discipline. I can complete the project within your required timeline, and I would be happy to discuss the cost in detail. Best regards, Oluwatobi Okedairo

@SonnyDube

I am a perfect fit for your project. Your need for a fast, accurate Java backend API with clean REST design aligns perfectly with my approach to building modular, well-layered Spring Boot applications. I will deliver a configurable, regex-based parser ensuring clean JSON output within the 200 ms response target while maintaining 95% test coverage and zero critical issues. While I am new to Freelancer, I have strong experience and have delivered similar solutions outside the platform, focusing on scalable microservices and thorough testing. I offer a free consultation to fully understand your parsing rules and project goals for the best technical approach. I would love to chat more about your project! Regards, Sonny Dube

@HanzlaMernDev

I will develop your Java-based data-processing engine using Spring Boot to ensure high-speed, rule-driven parsing and seamless integration within your microservices environment. My approach involves creating a decoupled architecture where parsing logic is driven by external configuration files—utilizing regex or ANTLR-based grammar—allowing you to extend rules without code rewrites while maintaining a sub-200ms response time for 5 KB payloads. I have extensive experience in building robust REST APIs and modular software architectures, ensuring that the deliverables include 95% test coverage, a clean OpenAPI specification, and a fully automated Maven build pipeline. My background in developing production-grade platforms like InViewAI has refined my ability to deliver performance-optimized services that pass rigorous static-analysis audits and edge-case testing. For the configurable rules, would you prefer them to be managed via a JSON-based configuration file or a dynamic database-backed repository to support future scaling?

@andersond73

Hello, As I am a Java backend developer, I can build your text parsing API in 4 days for 1000 INR/hour. Your main risk is not the REST endpoint itself, but making the parser rule-driven and fast enough to stay under 200 ms while keeping the code easy to extend later. I’d build this as a small Spring Boot service with clear controller/service/parser separation, configurable regex or grammar rules loaded from JSON/YAML, and a strict response schema so new parsing cases can be added without rewriting core logic. The post asks for up to 5 KB payloads, modular architecture, 95% parsing test coverage, OpenAPI docs, automated Maven/Gradle build, and clean PR-based progress. A practical detail I’d add is a parser benchmark test suite for common and worst-case inputs, plus static analysis in CI so performance and code quality stay visible on every commit. I have strong backend and API architecture experience across Java, microservices, REST APIs, and scalable systems. I also keep proposals direct and focused on the client’s actual delivery requirements. Thank you.

@skram90

Hi I’m a Software Architect with 14+ years of experience building high-performance, production-grade backend systems, and this project aligns very closely with my core strengths—clean architecture, parsing engines, and scalable API design. I specialize in designing lightweight, maintainable Spring Boot applications with strict separation of concerns. For your requirement, I would implement a clear layered architecture (Controller → Service → Parser Engine) with strong emphasis on extensibility and testability. I would use the below structured approach, 1. Design & Architecture 2. API Development 3. Parsing Engine 4. Testing & Quality 5. Documentation & Delivery I don’t just deliver code. I design systems that are maintainable, extensible, and production-ready. Given my experience in architecting parsing-heavy and rule-based systems, I can ensure both performance and long-term adaptability, which is critical for this kind of requirement. I’d be happy to discuss your expected parsing scenarios and provide a quick prototype or design sketch before we begin. I’m flexible regarding the hourly rate and happy to align with your expectations. I see this project as an opportunity to build trust and grow into a long-term collaboration with you and your team.