.NET Production Support Developer Needed

@AwaisChaudhry

Hello, I understand you need a .NET Production Support Developer to handle incident resolution, maintenance, and evolutionary upgrades for production systems. I will focus on rapid incident response, thorough analysis of existing code and databases, and delivering incremental improvements with proper tests and documentation. My approach covers both standalone solutions and SaaS products, ensuring stable deployments, efficient query and data handling with SQL Server, EF, and REST integrations, plus any necessary cloud work on AWS. I will work to minimize downtime, preserve data integrity, and communicate clearly with stakeholders while continuously improving code quality and system reliability. What is the immediate production issue or evolution priority you want addressed first? Best regards,

@Microlent

Hello! I’d be excited to take full ownership of architecting and delivering your non-custodial USDC payment gateway and operate as a true founding-level engineer for this build. I’m very comfortable owning financial-grade systems end-to-end infrastructure, Web3 architecture, security boundaries, and production operations not just writing isolated services. Here’s how I’d approach your system: • Design HD wallet address generation using hardened derivation paths with signing isolated via KMS/Vault (no key exposure at app layer) • Build chain indexing services using event-driven watchers with reorg-safe confirmation logic • Implement EIP-3009 permit-based sweep architecture to minimize treasury ETH dependency • Architect fault-tolerant worker queues (Redis streams / BullMQ) for indexing + sweep orchestration • Build high-integrity PostgreSQL schema with idempotency keys, ledger tables, and immutable audit logs • Deliver secure internal admin dashboard with payment state visibility, treasury monitoring, and gas alerting Infrastructure & Security approach: • AWS production stack (ECS/EKS + RDS + KMS + WAF + private networking) • Secrets + signing isolated via KMS or HashiCorp Vault HSM-backed workflows • Full CI/CD via GitHub Actions with testnet + forked mainnet simulation pipelines • Rate limiting, request signing, and webhook verification layers Happy to propose an architecture diagram + milestone execution plan as a first step. Best regards, Jasmin

@tangramua

Dear ,   We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time.   We are 25 years in this business and our technical specialists have strong experience in .NET, C# Programming, ASP.NET, Microsoft SQL Server, LINQ, Vue.js, .NET Core, REST API and other technologies relevant to your project.   Please, review our profile https://www.freelancer.com/u/tangramua where you can find detailed information about our company, our portfolio, and the client's recent reviews.   Please contact us via Freelancer Chat to discuss your project in details.    Best regards, Sales department Tangram Canada Inc.     

@aliashraf26

Hello, I’m a Senior .NET Developer with solid experience in production support, evolutionary maintenance, and SaaS systems used by real clients. I have strong expertise in .NET Framework 4.8+, Entity Framework (Code First & DB First), and LINQ, working extensively on live systems where stability and performance are critical. I regularly handle incident resolution, root-cause analysis, and safe deployment of enhancements without disrupting users. On the database side, I have deep experience with SQL Server, including Stored Procedures, Functions, Triggers, Views, query optimization, and schema management in production environments. I also have experience integrating REST APIs, working with cloud services, and maintaining existing frontends using JavaScript and Vue.js when required. I’m comfortable analyzing legacy codebases, proposing improvements, and implementing scalable solutions while ensuring system reliability. Although based in Australia, I work effectively across time zones and can align with LATAM hours. I would be happy to discuss how I can support and improve your production systems. Best regards, Ali

@vishal1145

Your SQL Server setup will become a bottleneck if you're running unoptimized stored procedures during peak client usage - I've seen production systems grind to a halt when queries hit 10+ second response times under load. Before proposing the support strategy, I need clarity on two things: What's your current incident response SLA, and are you tracking query execution times in production? Also, does your AWS environment have automated rollback capabilities if a deployment breaks client-facing features? Here's the support approach: - .NET FRAMEWORK 4.8 + ENTITY FRAMEWORK: Implement query profiling to identify N+1 problems and refactor LINQ expressions that are causing table scans instead of index seeks. - SQL SERVER OPTIMIZATION: Audit existing stored procedures for missing indexes and rewrite triggers that block concurrent transactions - I've reduced deadlocks by 80% using table-valued parameters and proper isolation levels. - REST API INTEGRATION: Build retry logic with exponential backoff for third-party services and implement circuit breakers to prevent cascading failures when external APIs go down. - VUE.JS MAINTENANCE: Refactor legacy components to use composition API and eliminate memory leaks from improper event listener cleanup. - AWS PRODUCTION MONITORING: Set up CloudWatch alarms for database connection pool exhaustion and Lambda timeout patterns before clients notice degraded performance. I've handled production support for 4 SaaS platforms processing 2M+ transactions monthly. Let's schedule a 15-minute call to discuss your current incident patterns and deployment pipeline before committing to response times.

@MashoodurRehman1

I am confident in my capabilities as a .NET Production Support Developer, possessing in-depth knowledge of the .NET Framework 4.8 and extensive experience in developing, maintaining, and enhancing applications in production environments. My robust skills with the Microsoft platform, Entity Framework, and LINQ allow me to perform efficient querying, data transformations, and implement business logic effectively. Having a strong command over SQL Server, I excel in developing and maintaining stored procedures, optimizing queries, and managing data schemas in production environments. My experience in consuming and integrating REST APIs, coupled with my knowledge of AWS services, enables me to work seamlessly across multiple platforms and enterprise systems. Additionally, my understanding of Vue.js and front-end technologies, though a nice-to-have, can serve to maintain or develop existing web interfaces. I am keen to discuss how my capabilities can align with the needs of your existing systems. Could you share more details about the standalone solutions or specific SaaS products involved? Looking forward to the opportunity to contribute.

@softsolution2000

I am confident that my skills in .NET, C# Programming, ASP.NET, Microsoft SQL Server, and LINQ are a great match for the .NET Production Support Developer Needed project. I am eager to actively participate in technical support, evolutionary maintenance, and continuous improvement of production systems. The budget can be adjusted once the full project scope is discussed, and my priority is to work within your budget. Please go through my profile, which showcases 15 years of experience and a commitment to client satisfaction. Looking forward to hearing from you.

@devbaloni1983

Hello, I am an expert with 15+ years of experience in the technical world, delivering simple to complex websites, e-commerce platforms, membership systems, and portal websites. I provide clear communication, continued support after delivery, and 100% client satisfaction. I specialize in .NET and C# development, creating secure, scalable, and high-performance applications including enterprise solutions, APIs, and database-driven systems. I always adopt the latest technologies to ensure modern and future-ready solutions. If you are looking for a dedicated .NET expert who delivers quality, reliability, and timely results, I’d be glad to work on your project. Best regards,

@Herculesz

Hi I can support your production systems as a .NET developer with solid experience in .NET Framework 4.8+, Entity Framework, SQL Server optimization, and multi-platform integrations. The main technical challenge in this type of role is balancing incident resolution with safe evolutionary maintenance, and I address it by using structured debugging, clear root-cause analysis, and clean incremental improvements that don’t disrupt active clients. I’ve worked extensively with EF (Code First/DB First), LINQ-driven business logic, Stored Procedures, Functions, Triggers, and performance tuning in production. I’m comfortable integrating internal and third-party REST APIs and working with AWS services for auth, storage, and system interoperability. I can also maintain Vue.js frontends where needed, ensuring continuity across backend and UI behaviors. My approach prioritizes stability, clarity, and careful changes within live environments used by enterprise clients. Thanks, Hercules

@shubhbatra170

I am a Professional Full Stack Software Developer. As per my past experience, I have the ability to work on web application development using .NET MVC, .NET Core, and SQL Server. I am self-motivated, diligent, and confident in my work. I am extremely detail-oriented, and I pay attention to every single aspect of all the tasks. I have 6+ years of experience in Database development and have expertise in complex queries, stored procedures, User Defined Functions. I have logical problem-solving abilities too. As per my experience, I am sure that I will give you my best and deliver quality results with 100% satisfaction at the given time duration and It would be a pleasure to work with you & I will look forward to being connected with you. I also have a very good eye on Front End Design. I love being able to tackle new projects and work with different clients as much as possible. Also, I am an all-around creative individual with broad experience in • .NET MVC • .NET Core • .NET Web API • Blazor • C# • SQL Server • Entity Framework • LINQ • Jquery • Javascript • Vuejs • Angular js • Highchartjs • HTML5 • Bootstrap 3 & 4 • CSS3 ‹‹‹‹‹‹‹ Areas of my expertise ››››››› • Integration of 3rd party applications • Custom development and minor fixes • Code and Speed Optimization • Payment Gateway integrations • API integrations ‹‹‹‹‹‹‹ Why Choose Me ››››››› → 7-days Availability → Unlimited Revisions → Fast Delivery → Satisfaction Guarantee Thanks and Regards, Shubham

@vinod150987

Designed and developed RESTful APIs using ASP.NET Core (.NET 6/7) following SOLID principles and clean architecture. Built secure and scalable backend services using ASP.NET Core MVC, Web API, and Minimal APIs. Implemented authentication and authorization using JWT, OAuth 2.0, and role-based access control. Integrated databases using Entity Framework Core, Dapper, and stored procedures with SQL Server and Oracle. I have long experience with right skills to work on this project. Please send me a message so we can discuss further. Thank You.

@hireageek

Hi there, I understand you're looking for a .NET Developer to ensure the reliable operation and continuous improvement of your production systems. With my extensive background in .NET Framework 4.8+, alongside hands-on experience with SQL Server and Entity Framework, I am confident in my ability to provide the technical support and enhancements your systems need. Having successfully managed similar projects, I excel in incident resolution and performance optimization, ensuring minimal downtime and high operational efficiency. My ability to integrate REST APIs and work within cloud environments will also enhance your existing solution's capabilities. I’m excited about the potential to collaborate and make impactful improvements to your systems. Please feel free to message me directly at your earliest convenience to discuss this further! What specific challenges have you encountered in your current production environment that you’d like to address?

@ASirbescu

Project Title: .NET Production Support Developer Needed Project Description: .NET Developer – Production Support & Evolutionary Maintenance Hey there! My name is Sirbescu, a versatile and experienced full-stack developer with a strong emphasis on Python and JavaScript. I am writing to express my keen interest in your .NET Production Support Developer position. My expertise in backend development (specifically in Python) makes me well-equipped to work seamlessly with your existing systems. My extensive knowledge of .NET Framework 4.8 or higher, Entity Framework, LINQ for efficient querying and data transformation, as well as SQL Server management, are all fundamental skills your project demands. Over the years, I've developed a knack for analyzing existing codebases and suggesting effective improvements – an ability that would prove valuable for both incident resolution and the evolutionary maintenance nature of this role. In addition to my backend proficiency, I am also adept at frontend development using modern JavaScript frameworks - including Vue.js which is preferred for your project. My projects are characterized by robustness, responsiveness and an impressive user-interface – qualities that would ensure seamless adoption of your platforms across multiple platforms and enterprise clients. As for cloud service knowledge (preferably AWS), interacting with multiple APIs/services, developing functionalities within intricate architecture are all skills I possess.

@shanec35

Hello, I’ve reviewed your requirements and have solid experience supporting and evolving .NET production systems used by real clients. In a recent role, I handled incident resolution and evolutionary maintenance for .NET Framework 4.8 applications, working daily with Entity Framework, LINQ, and SQL Server in high-impact production environments. I analyzed legacy codebases, fixed critical issues, optimized queries and stored procedures, and delivered incremental improvements without disrupting operations. I’m comfortable working with SQL Server (SPs, functions, triggers, views), performance tuning, and schema changes in live systems. I also have hands-on experience integrating REST APIs, working with AWS services, and maintaining existing frontends (including Vue.js and JavaScript) when required. My strength is understanding existing systems quickly, stabilizing them, and improving them step by step. I can start your project immediately and am fully comfortable with production support, incident handling, and long-term evolutionary maintenance. Thank you, Elenilson

@billybryan98

Hello, I hope you are doing well. I’m a .NET developer focused on production support, incident resolution, and evolutionary maintenance for enterprise systems. I work with .NET Framework 4.8+/NET Core, Entity Framework, LINQ, and SQL Server to keep live applications stable, performing migrations, optimizations, and reliable REST integrations for both standalone apps and SaaS products. I aim to blend reliability with incremental improvements, so production systems stay robust while growth continues. In past engagements I’ve supported real-world systems with active client usage, triaging incidents, diagnosing root causes, and delivering targeted code changes that improve performance and resilience. I’ve built and optimized data access layers, managed schema changes in production, and integrated internal and third-party REST services, with AWS-based hosting and services where applicable. I’m comfortable navigating production constraints and cross-platform integrations. I can handle the work using my expertise and past experiences. I will keep changes simple, reliable, and well-tested to ensure smooth production support and steady evolution. Please feel free to contact me so we can discuss more details. I am looking forward to the chance of working together. Best regards, Billy Bryan

@extreamcode

Hi, I’ve picked up on your need for a seasoned .NET developer who excels not only in maintaining but evolving production systems under real client demands. Your focus on incident resolution plus evolutionary improvements resonates with my experience supporting high-impact SaaS platforms using .NET Framework 4.8+, Entity Framework, and SQL Server. I excel in optimizing queries, managing data schema changes, and integrating REST APIs, including cloud service interactions, which aligns perfectly with your requirements. I approach support work not just as troubleshooting but as a strategic opportunity to enhance system resilience and performance. I’ve shared an initial estimate based on your description, and once we go over a few technical or functional details, I’ll confirm the exact cost and delivery schedule. I’m ready to start immediately and collaborate closely to ensure smooth, continuous improvements. Could you share more about the current challenges you face in production support and any particular pain points in your .NET systems? Best regards, Asad

@MIndlabsAi6

Hello Tg, I am Vishal Maharaj, a seasoned professional with 20 years of expertise in .NET, C# Programming, ASP.NET, Vue.js, .NET Core, REST API, and Microsoft SQL Server. I have carefully reviewed the requirements for the .NET Production Support Developer role and am confident in my ability to contribute effectively. For this project, I plan to actively engage in incident resolution, analyze existing systems, and develop functional and technical enhancements to ensure the continuous improvement of production systems. With a strong command of .NET Framework, Entity Framework, LINQ, SQL Server, and REST API integrations, I am well-equipped to handle the responsibilities outlined in the project description. I would appreciate the opportunity to discuss this project further with you. Please feel free to initiate a chat at your convenience. Cheers, Vishal Maharaj

@dataspro

Nice to talk you , After reading in detail the requirements of your project and concluding that they match my areas of knowledge and skills, I would like to introduce myself. My name is Anthony Muñoz and I am the lead engineer for DS Pro IT agency. I have worked for over 10 years in Backend and software development and have successfully done multiple jobs. It will be a pleasure to work together to make your project a reality. Please feel free to contact me. I´m looking forward to working with you. I really appreciate your time and remain attentive to any request or question. Greetings

@toriquldev123

Hello Dear! I write to introduce myself. I'm Engineer Toriqul Islam. I was born and grew up in Bangladesh. I speak and write in English like native people. I am a B.S.C. Engineer of Computer Science & Engineering. I completed my graduation from Rajshahi University of Engineering & Technology ( RUET). I love to work on Web Design & Development project. Web Design & development: I am a full-stack web developer with more than 10 years of experience. My design Approach is Always Modern and simple, which attracts people towards it. I have built websites for a wide variety of industries. I have worked with a lot of companies and built astonishing websites. All Clients have good reviews about me. Client Satisfaction is my first Priority. Technologies We Use: Custom Websites Development Using ======>Full Stack Development. 1. HTML5 2. CSS3 3. Bootstrap4 4. jQuery 5. JavaScript 6. Angular JS 7. React JS 8. Node JS 9. WordPress 10. PHP 11. Ruby on Rails 12. MYSQL 13. Laravel 14. .Net 15. CodeIgniter 16. React Native 17. SQL / MySQL 18. Mobile app development 19. Python 20. MongoDB What you'll get? • Fully Responsive Website on All Devices • Reusable Components • Quick response • Clean, tested and documented code • Completely met deadlines and requirements • Clear communication You are cordially welcome to discuss your project. Thank You! Best Regards, Toriqul Islam