Full Stack / Backend Developer for Fintech

@santoshkumars17

As an experienced full-stack and backend developer with a specialization in both React.js and Node.js, I believe my skills and expertise align perfectly with your project needs. Over the past 5+ years, I have been building scalable solutions for various platforms and industries including trading systems and fintech infrastructures. This familiarity with your domain will greatly enhance our ability to make informed decisions about your unique challenges and deliver effective solutions. I'm especially comfortable in low-latency backend systems and adept at simultaneously focusing on core engineering while also executing feature development tasks. My strong understanding of WebSockets, real-time systems, API optimization, database performance tuning, distributed systems, caching, load testing, and performance optimization makes me confident in my ability to not only stabilize but optimize your trading platform for high-performance execution. My commitment is to deliver a fully tested stable backend that can handle a high instrument load without any glitches. With an immediate start available, I'm ready to dedicate myself fully to this project. By choosing me, you can rely on my clear communication skills throughout the process and trust that I will deliver on what I promise - a stable, scalable solution for your fintech trading platform. Let's connect and discuss how we can create something amazing together!

@chiragardeshna

Hi there, I have gone through your requirements regarding stabilizing and scaling a low-latency trading backend with real-time systems and high instrument load. I have a good hand on working Experience in building high-performance backend systems with WebSockets, caching layers, and API optimization. Recently handled systems involving real-time data streams, performance tuning, and scalable architectures. I can audit your codebase, reduce execution latency, and optimize handling of 10,000+ instruments with efficient data pipelines, caching (Redis), and async processing. I can also implement observability (logs, tracing) and ensure stable real-time notifications. I am confident in delivering a production-ready, high-performance backend within your timeline. Approach: audit → benchmark → optimize → validate with load testing. Available immediately for full-time engagement. Thanks, Chirag

@sonika1419

**DO NOT PAY ME UNTIL I COMPLETE! :)** Hello my valuable client :) My profile is new over here but I have 7 years of experience in this field. I have completely understood about your project. Also I will provide you free maintenance on your project for 1 year after project completion. I can definitely complete this in your timeframe. Give me one chance to prove myself. Hit the chat button to get started. If you will not like my work then you dont need to pay me any money so dont worry and have faith in me :) I am eagerly waiting for your message.

@pulkit0729

I understand the critical need for reducing order execution latency and ensuring scalability in a high-performance prop trading platform. With over 6 years of experience in fintech backend development, specializing in low-latency systems, WebSockets, API optimization, and distributed caching, I am confident in delivering a stable, optimized backend. My approach includes a thorough codebase audit to enhance maintainability, aggressive performance tuning, and rigorous end-to-end testing. I will prioritize key features like real-time market depth, KYC integration, and notifications, ensuring production readiness within the 2-month contract. I am fully available to start immediately and committed to high availability, bringing professionalism and enthusiasm to stabilize and scale your trading infrastructure effectively.

@abhishek060

Hi, I can help audit, refactor, and optimize your trading platform backend to reduce order execution latency and ensure it reliably handles 10k+ instruments with stable real-time performance. I’ll also implement WebSocket optimizations, performance monitoring, and robust integrations (KYC, notifications, trading features) to deliver a scalable, production-ready system. Lets discuss on chat. Regards Abhishek

@Ateeshkumar

As a seasoned full-stack software engineer with solid experience in optimizing and scaling backend systems, I'm confident that I have the requisite skills to deliver exceptional results for your high-performance prop trading platform. I have prior experience in fintech, having worked on projects that involved real-time data handling and APIs optimization – precisely what your system needs. My understanding of distributed systems and caching, combined with my orientation towards performance optimization, can help reduce latency in order execution and introduce smooth handling of high instrument load. My commitment to delivering working software on time aligns perfectly with your requirement for immediate engagement. As an independent and proactive problem-solver, I can carry out deep audits on your codebase to ensure improved scalability and maintainability while reducing order execution latency. In addition to my technical abilities, my communication style is clear and consistent – a quality that allows me to work well remotely. My inclination towards leaving no stone unturned when testing the backend systems ensures you'd have fully tested and production-ready implementations of all key features I work on. With me handling this critical project for you, you won't just get a technically sound solution but one that’s truly forward-thinking!

@dushyant317

I’m a senior full-stack/backend engineer with deep experience in low-latency trading systems, real-time WebSocket streams, and performance optimization. I’ll audit, refactor, and enhance your platform to handle high instrument loads, reduce order execution latency, and deliver stable, production-ready features.

@Hemantt841

You’re looking for a senior Full Stack/Backend engineer to stabilize and scale your high-performance prop trading platform, focusing on reducing order execution latency and optimizing handling of over 10,000 instruments. Your emphasis on deep codebase audits and end-to-end backend testing shows you need someone meticulous and experienced with fintech systems. Your project requires expertise in low-latency backend systems, WebSockets, API optimization, and distributed caching, along with developing features like real-time market depth and KYC integration. I understand the critical importance of performance tuning and observability in trading platforms, especially when handling real-time data and large instrument volumes. I have built and optimized trading backend systems where I reduced latency by refactoring core microservices and implemented real-time data streams using WebSockets and distributed caching. This involved load testing and ensuring the systems scaled smoothly under heavy instrument loads, which aligns directly with your priorities around scalability and stability. I can dedicate full-time availability and deliver initial audit results and latency improvements within 3 weeks, followed by phased feature rollouts over the next month. Let’s discuss how I can help you meet your milestones efficiently.

@tamannarajput18

As a senior Full Stack developer with significant experience in scaling and optimizing complex, high-performance systems, I am confident in my ability to meet and exceed your expectations for this project. My work in building and refactoring trading platforms mirrors the requirements outlined in your project description. Having honed my skills with both MEAN and MERN stack development, I'm already well-acquainted with the tech stack you are using. I bring far more to the table than just technical acumen; my emphasis on clean architecture and security aligns well with your need for stable backend systems. Further, my proficiency with deploying cloud-based applications on platforms like AWS and DigitalOcean ties in nicely with your requirements for production-ready implementation of features. My offering extends beyond technical solutions - I prioritize open communication as well as maintainable codebases and look forward to providing these qualities to your team too.

@kishanbwts

Your focus on latency and scalability matches work I recently did for a trading platform struggling with order execution delays under heavy load. I performed deep audits and refactored core services to reduce latency by 30%, while improving maintainability for rapid feature rollout. For your platform, I’ll start by profiling current bottlenecks in order execution and instrument handling. Are you using in-memory caching or sharded databases to distribute load? This can make a big difference at 10,000+ instruments. Also, do you currently have automated load tests simulating peak trading volumes? Setting those up early helps isolate issues before deployment. I’ll refactor critical modules to optimize WebSocket connections and database queries, enabling smoother real-time data flow. For observability, building a tracing and metrics layer can catch performance drops before they impact users. Given the two-month timeline and your need for stability, I will prioritize scalable, tested solutions with clear documentation to support future enhancements. Ready to jump in and start with a code audit immediately.

@sumanj555

Hello, Greetings! I’m a senior full-stack developer with 6+ years of experience in building scalable mobile and web applications. I specialize in cross-platform and native mobile development using Flutter, React Native, Swift (iOS), and Kotlin/Java (Android), along with strong backend expertise in Node.js, Django, FastAPI, and Laravel, supported by modern cloud technologies. My team and I build end-to-end mobile solutions including custom dashboards, internal tools, automation systems, role-based platforms, secure APIs, real-time features, payment integrations, push notifications, and complete app store deployments. We focus on creating smooth user experiences, clean architecture, and reliable performance. We’ve worked on numerous mobile projects with different requirements and complexities, helping clients turn their ideas into well-designed, high-performing applications. Your project aligns well with our technical skills and development approach. I’d be happy to discuss your project scope, ideas, and goals, and suggest the best technical approach. Best regards, Suman Joshi

@Adnanjamilmayo

Hi, Could you share more details about your current system architecture and what specific issues you’re facing with latency and scalability? Understanding this will help me suggest an effective approach. With over 5 years of experience in building high-performance backend systems, particularly in fintech and trading platforms, I specialize in optimizing order execution and enhancing system stability. My expertise includes real-time data handling, API optimization, and database performance tuning. I am committed to delivering a deeply audited and refactored codebase that meets your needs and ensures optimal performance, even under high loads. I’m ready for immediate engagement and can provide high availability throughout our collaboration. Let’s connect to discuss how I can contribute to your project’s success.

@neetus0087

I will develop high-quality custom software solutions tailored to your needs Description: Looking for reliable and scalable software solutions? You're in the right place! I specialize in building robust, efficient, and user-friendly applications that help businesses grow and streamline operations. Whether you need a web app, desktop software, API integration, or a full-stack solution, I’m here to turn your ideas into reality. ? Services I Offer: Custom software development Web application development (frontend & backend) API development & integration Database design and optimization Bug fixing and performance improvements Software maintenance and upgrades ⚙️ Technologies: JavaScript (React, Node.js) Python (Django, Flask) Java / C++ SQL & NoSQL databases

@Ashoksahu001

With over a decade of experience in software development and a thorough understanding of backend systems, distributed systems, and websockets, I am well-prepared to tackle the complex challenges your full stack and backend development project entails. I have a specific affinity for fintech and trading systems, having built platforms that demand real-time data handling and low-latency execution, skills that resonate well with your project's focuses. In addition, my expertise in API optimization, DB performance tuning, load testing, and performance optimization are vital for any project targeting scalability and stability. I don't just build software; I ensure it delivers real business results. My commitment to 100% on-time delivery, on-budget execution, and long-term partnership is testament to this ethos. Not only will I reduce latency in order execution and optimize trading terminal to handle high instrument load seamlessly but I'll also develop features like Market Depth + Option Chain using my experience with real-time data handling. Imagine a fully tested and stable backend system integrated with a reliable third party KYC system and equipped with a robust observability and metrics layer offering real-time risk alerts. That's the value I bring to the table. Let's commence this project asap—so we can leverage my extensive skills in Fintech systems, APIs optimization, websockets++, not tomorrow or next month but now!

@codyd27

Hi, My name is ⭐Cody⭐. I can start your project right now and optimize your trading backend for low latency, scalability, and stable real-time performance under heavy load. I understand execution speed is critical, so what is your current average order latency and where do you see the main bottlenecks in your system? I will deliver a refactored, high-performance system with strong observability and reliable real-time features, looking forward to working with you.

@nexbharat89

With extensive experience in back-end development, I possess a thorough understanding of the intricacies involved in building and optimizing low-latency systems - a skill set that is acutely relevant to your prop trading platform. Leveraging my proficiency in technologies such as WebSockets, distributed systems, database performance optimization, and load testing; I am confident in my ability to reduce order execution latency and handle high instrument load for seamless trading performance. Moreover, my familiarity with 3rd-party integrations and API optimization makes me well-prepared to tackle the challenges involved in implementing market depth, option chain handling, KYC integration, observability & metrics layered solutions, real-time notification systems and scalper mode features - all of which you have explicitly outlined as a significant part of the project. Drawing upon my skills in backend development and REST API creation, I assure you of a production-ready backend with smooth integration across all components. Having upheld strong working relationships with previous clients by virtue of clear communication and timely delivery alongside providing long-term business solutions, I am excited about the opportunity to demonstrate these qualities on your prop trading platform. Let's connect soon to discuss how we can optimize your fintech system for unparalleled performance!

@techwagger

As a versatile and experienced Application Solution Architect with a proven track record of successfully delivering large-scale, real-time applications using various technologies, including React.js and full-stack development, I believe I would be ideal for your project. My solid understanding of low-latency backend systems, API optimization, and other trading system-related skills make me well-suited to help stabilize, scale and optimize your trading platform. Throughout my career, I've made it a priority to ensure smooth system performance under high load and minimize latency in order execution - critical aspects for any trading platform. Moreover, my ability to conduct deep codebase audits and refactoring for scalability and maintainability will enable me to improve your system significantly. Being highly committed and possessing an actionable understanding of the financial market's dynamics, combined with my extensive coding experience in areas such as real-time data handling, KYC integration, observability & metrics layer implementation, risk alert systems, Scalper Mode development using existing APIs - I strongly believe I could meet not just your expectations but surpass them too! So let's join our forces to maximize your business potential through modernizing software engineering practices providing scalable solutions at topic-notch speed!

@KarthikTechCon

Hi, I’m Karthik, a Senior Full Stack / Backend Engineer with 15+ years of experience building high-performance, low-latency systems, including fintech and real-time trading platforms. Your requirement aligns perfectly with my expertise in optimizing trading infrastructures and scaling backend systems for performance-critical environments. What I bring: • Deep codebase audit, refactoring for scalability & maintainability • Proven experience reducing execution latency using optimized APIs, caching, and async processing • Strong hands-on with WebSockets, real-time data pipelines, and distributed systems • DB performance tuning (PostgreSQL, MongoDB, Redis) for high-throughput workloads • Experience handling large datasets (10,000+ instruments) with stable performance Feature expertise: • Market depth & option chain (real-time streaming) • KYC integrations & secure API design • Observability (logs, tracing, metrics – Prometheus/Grafana) • Real-time alerts & notification systems • High-speed order flows (scalper/one-click trading logic) I focus on clean architecture, rigorous testing, and production-grade delivery. I can quickly identify bottlenecks, stabilize systems, and deliver measurable improvements in latency and throughput. Available for immediate start, full-time commitment, and long-term collaboration if needed. Let’s build a fast, scalable trading platform. Best regards, Karthik

@indreshpnk

As a certified Full-Stack Developer with special attention in backend engineering, your quest for a senior developer to stabilize, scale, and optimize your fintech trading platform ends here. My considerable experience in the field has granted me an in-depth understanding of websockets, real-time systems, API optimization, DB performance tuning, distributed systems and caching. These are critical areas for creating and maintaining the low-latency backend systems demanded by the likes of your prop trading platform. During our two-month contractual engagement, not only will I deliver on identified deliverables like reducing latency in order execution and ensuring smooth handling of high instrument load but also work on feature development such as Market Depth + Option Chain, 3rd Party KYC Integration, Observability & Metrics Layerlayer and Real-time Notification System to name a few. I pride myself on not just delivering functionality but focusing on performance, scalability and maintainability - characteristics that are vital to effective fintech-infrastructure.