.NET/C# ABP Backend Developer -- 2

@pankajgarg86

With over a decade-long dedication to .NET and C# development, My skill set perfectly aligns with your requirements; ABP framework, DB query optimization, OAuth 2.0 implementation and more. My experience with message brokers such as Kafka/RabbitMQ and understanding of idempotency patterns will immensely benefit your project. Additionally, having implemented API rate-limiting/throttling, Docker expertise and mTLS based authentication/authorization (extra - not required), I am well-prepared to handle every aspect of your backend development. Finally, I place great importance on maintaining clean architecture solidified by comprehensive documentation and regular code reviews. Opt for me and let's build a reliable backend together!

@kamran2012

Hello, I will build out your backend modules in ABP — covering OAuth 2.0 flows, idempotency middleware, rate limiting, and audit trail with immutable logging — while keeping the architecture clean and well-documented. One thing I will prioritize early: structuring the message broker consumers (Kafka or RabbitMQ) with idempotency keys stored in Redis, so duplicate events never produce side effects. This pairs well with ABP's event bus abstraction and avoids subtle data consistency issues as the system scales under load. Questions: 1) Which message broker are you currently using — Kafka, RabbitMQ, or still deciding? 2) Is the OAuth 2.0 flow intended for machine-to-machine (client credentials) or end-user authentication, or both? 3) Are you running ABP on the latest .NET 8 with the modular architecture? Looking forward to potentially working together. Thanks, Kamran

@MashoodurRehman1

I am a seasoned .NET backend developer with extensive expertise in the ABP framework, perfectly aligning with your project requirements. I bring a wealth of experience in building scalable, secure, and maintainable backend systems, supported by my ability to optimize DB queries and implement advanced security measures. My proficiency extends to message brokers such as Kafka and RabbitMQ, crucial for handling asynchronous operations in distributed systems. In addition, I have a proven track record in implementing idempotency patterns and OAuth 2.0 for robust authentication processes. My hands-on experience with API rate limiting and throttling ensures optimal resource usage and system stability. With experience in Docker for containerization and Redis for caching, I can enhance your system's efficiency and speed. My skills in creating comprehensive technical documentation and architecture diagrams, coupled with conducting thorough code reviews, align directly with your project needs. I am interested in discussing how my expertise can contribute to your project. Could we schedule a call to explore this collaboration further? Thank you for considering my application.

@MSHOAIBK

Hello, You need a senior .NET developer who can take ownership of backend development, build secure and scalable systems, and handle complex architecture concerns like messaging, authentication, and performance. I have extensive experience with .NET Core, building enterprise-grade APIs, working with message brokers like RabbitMQ, implementing OAuth 2.0, and optimizing database performance. I’ve also worked with caching (Redis), Dockerized environments, and secure API design. 3. How I will contribute • Develop and extend core backend functionalities using clean architecture • Optimize database queries for performance and scalability • Implement messaging patterns using Kafka or RabbitMQ • Apply idempotency patterns to ensure safe and repeatable operations • Implement OAuth 2.0 authentication and API rate limiting • Add audit logging, monitoring, and immutable tracking • Use Redis caching for performance improvements • Support containerization with Docker 4. Additional strengths • Experience with ABP framework or similar modular architectures • Strong focus on security, including logging and access control • Comfortable creating technical documentation and architecture diagrams • Experience conducting code reviews and maintaining code quality 5. Availability Available to start immediately and work as part of your ongoing team. I focus on building backend systems that are scalable, secure, and easy to maintain long term. Regards, Muhammad Shoaib

@Hubready

Hello!, I am a Florida-based senior software engineer with over 15 years of experience in .NET, MySQL, and API Development. I’ve read your project description carefully and understand you’re looking for a dedicated developer for your backend system. I believe I’m the right fit for this role and can help you achieve your project goals effectively. To ensure I align my approach with your vision, could you please clarify the following questions to help me better understand the project? 1. What specific functionalities or features are you looking to enhance or implement in the backend system? 2. Are there any existing APIs or microservices that we will need to integrate with the current system? My expertise in building scalable and efficient backend systems aligns perfectly with your needs. I have successfully developed systems that focus on performance, maintainability, and seamless user experiences. I approach every project with a strategic mindset, ensuring that the solutions provided are not just technically sound but also practical. Looking forward to your response so we can discuss how I can contribute to your project. -James

@blackrockwise

Hi there, I like how you have outlined your project description with clear expectations for a senior .NET backend developer. You need a skilled professional to strengthen your backend system using .NET and the ABP framework, focusing on security, scalability, and maintainability. Your requirements include expertise in database optimization, message brokers like Kafka or RabbitMQ, OAuth 2.0, API rate limiting, caching with Redis, and advanced security features such as audit logging. With over 7 years of experience in .NET development and extensive work with the ABP framework, I have successfully built secure and scalable backend solutions incorporating OAuth 2.0, message brokers, and efficient caching strategies. I am well-versed in implementing idempotency patterns, API throttling, and conducting thorough code reviews to ensure high quality. I also bring practical experience with Docker and creating detailed technical documentation that supports maintainability and future scaling. I am confident we can collaboratively enhance your backend system to meet and exceed your goals. Let’s discuss how I can contribute to your ongoing development and ensure your system's robustness and performance.

@alizain721

Audit trail and idempotency are the two things that usually make ABP projects brittle under load — especially once you add async messaging and retries. The hidden pain is slow queries hiding behind cache, which then makes retries re-run expensive operations and pollute audit logs. Plan: map the ABP modules first, run EF Core query profiling (MiniProfiler + EF logging) and convert hot paths to optimized SQL/Dapper. Add an idempotency-key table and lightweight middleware to short-circuit duplicate requests. Use Redis for cache and token state, .NET RateLimiting middleware for throttling, implement OAuth2 via IdentityServer/ASP.NET Core token introspection, and wire Kafka/RabbitMQ consumers with dedupe. Dockerize services, push immutable audit entries to an append-only table with hash-chaining and optional S3 export, and deliver a simple C4 diagram and review checklist. Quick question: do you prefer Kafka or RabbitMQ for the message layer?

@rbtech1984

Hello There!!! ★★★★ (Senior .NET/ABP backend developer for scalable microservices & secure architecture) ★★★★ Project understanding: You need a senior .NET backend developer to support ongoing development of an ABP-based system. The role involves building core backend features while ensuring scalability, security, performance, and maintainability using modern backend practices. Services: ⚜ .NET / .NET Core backend development with ABP framework ⚜ Microservices design and scalable architecture implementation ⚜ Database optimization (PostgreSQL/MySQL query tuning) ⚜ Kafka/RabbitMQ integration for event-driven systems ⚜ OAuth 2.0, API security, rate limiting & throttling ⚜ Redis caching and performance improvement strategies ⚜ Docker containerization and deployment workflows I have strong hands-on experience in .NET backend systems, ABP framework projects, API development, and distributed architectures. I’ve worked with message queues, caching layers, and secure authentication systems in production environments. My approach will be to first understand your current system structure, then enhance modules step-by-step focusing on stability, security, and clean architecture. I also ensure proper documentation and code review practices so your team can maintain it easily. Let’s connect and I can start contributing immediately. Warm Regards, Farhin B.

@Jairo51019

With a proven track record of high-quality, efficient development, I strongly believe I am the perfect candidate for your .NET/C# ABP Backend Development project. My comprehensive expertise in .NET, ABP framework experience, and strong command of other key technologies aligns perfectly with the needs of your project. Over the years, I have actively worked on projects requiring similar skillsets-steeped in DB query optimization, implementing idempotency patterns, OAuth 2.0 implementation and so much more. Additionally, my familiarity with message brokers such as Kafka and RabbitMQ will be pivotal to guaranteeing smooth communication between multiple systems. Notably, with mTLS based authentication/authorization experience- a notable "extra" skillset you may consider- I am well positioned to ensure your system is highly secure and maintainable. Moreover, I have hands-on experience with Docker and a deep understanding of caching (including Redis) further highlighting my suitability for your task. In conclusion, selecting me for this back-end development position guarantees a seamlessly functional, secure and scalable backend system. As an added bonus to my proven technical capabilities, my ability to conduct detailed code reviews ensures we produce only the highest quality code that aligns exactly with your requirements. Looking forward to bringing your vision to life!

@dvcontact

Hi, This sounds related to missing idempotency and rate-limiting layers causing duplicate processing and unstable API behavior under load. You need solid ABP/.NET core work: durable message handling (Kafka/RabbitMQ), idempotency keys, Redis caching, and OAuth2 + audit logging. First thing I'd check: message handler retry paths and idempotency key implementation, then confirm DB query plans (Postgres/MySQL) and Redis usage to stop duplicates and reduce latency. I can add idempotent handlers, rate-limiting middleware, and immutable audit logging; if scope is small I can deliver a working fix within 24–48 hours. Ready to review the repo or diagram next? --Smith

@antonk52

With over a decade of experience as a full-stack developer, I've had the opportunity to work with various technologies and frameworks, including .NET and ABP. My expertise in API development, message brokers like Kafka/RabbitMQ, idempotency patterns, caching (Redis), Docker, and security implementations like OAuth 2.0 makes me a solid fit for your ongoing backend system development. My ability to optimize database queries, implement mTLS based authentication/authorization, design audit trails with immutable logging aligns perfectly with the security, scalability, and maintainability aspects you're looking for. Additionally, I have a good grasp of conducting code reviews and creating comprehensive technical documentation that ensures seamless communication within the team and beyond. Lastly, my familiarity with other languages such as PHP, JavaScript, Python and CMS platforms like Wordpress lend themselves well to the collaborative nature of software development. I bring not only my strong technical acumen but also a team-first mindset that values cohesion and efficient delivery. I believe this combination of skills and experience makes me an ideal candidate for your project.

@techsty2014

Good to see this project, I will pick up the harder pieces of the ABP backend: idempotency with Redis dedup on Idempotency-Key headers, the Outbox pattern through ABP's Distributed Event Bus for Kafka or RabbitMQ so events never drop on rollback, and rate limiting via System.Threading.RateLimiting. One area worth flagging: ABP's stock audit log is mutable in the app DB, which fails a real immutability test. The fix is either an append-only Kafka topic (compaction off) or hash-chained records where each entry carries the prior hash, run alongside the stock log. Questions: 1) ABP version (Framework 8.x, Boilerplate, or Commercial)? 2) Kafka or RabbitMQ, and is the cluster already running? Looking forward to discussing further. Best regards, Faizan

@saadrizwan97

As a seasoned .NET developer with extensive expertise in the ABP framework and backend development, I am confident in my ability to meet and exceed your expectations. Throughout my career, I have consistently built functional, secure, scalable, and maintainable systems - all of which align with your project's core requirements. Moreover, I possess deep knowledge in DB query optimization which I believe is crucial for any backend system's performance. This extends to my experience with message brokers like Kafka/RabbitMQ. My familiarity with idempotency patterns ensures that your system remains consistent even under varying inputs and situations. On the security front, my grasp of OAuth 2.0 implementation and mTLS based authentication/authorization will ensure high-level protection. Additionally, my proficiency in API rate limiting/throttling and security audit logging will contribute further to fortifying your system against potential threats. I also bring valuable skills in Docker, caching (Redis), technical documentation & architecture design, code reviews, audit trails & immutable logging - all designed to make your project successful. Lastly, it's not just about proficiency but commitment too. As a freelancer who takes ownership of their projects diligently, you can rely on me for the timely delivery of quality work while adhering closely to your objectives and specifications. Let's discuss more about how I can add value to your ongoing backend development efforts!

@krisk63

Hi there, I’m Kristopher Kramer from McKinney, Texas. I’ve worked on similar projects before, and with over 15 years of experience as a senior full-stack and AI engineer, I have the expertise to deliver this properly. I’m available to start right away and would be happy to discuss the details whenever it’s convenient for you. I look forward to speaking with you. Best regards, Kristopher Kramer

@jay8mac

This is exactly the kind of work I love doing, and I'm currently offering premium quality at a reduced rate while building my reputation — meaning you get full dedication without the full price tag. I understand you need a senior .NET/C# ABP Backend Developer to enhance your backend system’s functionality, security, scalability, and maintainability in an ongoing project. This is critical for ensuring a robust and efficient system that effectively supports your operational needs. While my extensive tech experience includes Docker, Redis, as well as API and microservices development, my competencies ensure I can seamlessly correspond with your project requirements for building backend functionalities inclusive of API rate limiting and technical documentation. I guarantee high-quality results and diversity. Looking forward to potentially collaborating. Regards, Jason McLachlan

@jordanrafael7

Hi, I checked your project description and understand you’re looking for a senior .NET backend developer to strengthen an existing system with scalable, secure, and well-architected backend features using ABP, messaging, caching, and modern security practices. I’ve worked on similar backend systems where the focus was on building reliable APIs, improving performance under load, and implementing secure distributed patterns like OAuth2, idempotent processing, and message-driven architectures. I have a few questions to get a better understanding: Q1 – Is the system currently in production, or are we working in an active staging environment? Q2 – Which messaging system is already in place (Kafka, RabbitMQ, or none yet)? Q3 – What are the current biggest pain points: performance, scalability, or security gaps? I’d be happy to support the backend development, optimize architecture where needed, and ensure everything stays clean, scalable, and production-ready. Looking forward to hearing from you.

@mobiwebsolutions

✋ Hi There!!! ✋ The Goal of the project:- TO BUILD AND MAINTAIN A SECURE, SCALABLE, AND HIGH-PERFORMANCE .NET ABP BACKEND SYSTEM WITH ENTERPRISE-GRADE ARCHITECTURE AND RELIABLE API INFRASTRUCTURE I have carefully read and understood your requirement for a senior .NET ABP backend developer to support ongoing backend development with strong focus on scalability, security, and maintainability. I am confident I am the best fit due to my strong experience in complex backend systems and microservices architecture. I can deliver ABP framework development, secure OAuth 2.0 authentication with rate limiting and throttling, and robust integration with Kafka or RabbitMQ along with optimized database queries for performance. My services include backend architecture, UI design support where needed, database management, testing, API development, and full source code delivery at project completion. I have 9+ years experience as a full stack developer and have worked with Docker, Redis caching, audit logging, and distributed systems. Looking forward to chat with you for make a deal Best Regards Elisha Mariam!

@romany55

Hi, I’m Roman. I’m a senior .NET backend dev ready to hop onto your ABP project and pull the system into solid, scalable shape. I’ve built, secured, and scaled REST APIs with .NET Core, ABP, and microservices, and I’ve tuned DBs (MySQL/PostgreSQL) for speed. I’ve worked with Kafka/RabbitMQ, implemented idempotency, OAuth 2.0, and API rate limits. Docker is second nature, Redis caching speeds things up, and I deliver clear docs, diagrams, and solid code reviews. I understand audit trails and immutable logging, and I monitor security with guardrails in place. I match timelines, communicate clearly, and love shipping code that’s easy to maintain. What I bring - ABP framework proficiency and modular design - RESTful APIs, .NET Core, microservices - DB tuning for MySQL/PostgreSQL - Kafka/RabbitMQ, idempotency - OAuth 2.0, API rate limiting, basic mTLS awareness - Docker, Redis caching - Documentation, architecture diagrams, code reviews, audits Two or three quick lines - On day one: implement idempotent commands, reliable messaging retries, and immutable audit logs. - Add OAuth2 with token validation, rate limiting, and mTLS where needed. - Dockerize services and set up Redis cache with clear docs and diagrams. If you want to chat, I’m in.