Real-Time Stock Trading Data Platform

@OutsourceMan

Building a high-performance prop trading platform that needs crucial backend optimization and management rings CnELIndia's bells! With our 18+ years' experience in web and app development, primarily Node.js and PostgreSQL, we've developed an intuitive understanding of fintech infrastructures.

@vishal1145

Your trade execution pipeline will fail under load if you're processing 10K+ instruments without proper message batching and connection pooling. At sub-millisecond latency requirements, even a single blocking database call will create cascading delays that ripple across your entire order book. Before architecting the solution, I need clarity on two things: What's your current message throughput during peak trading hours, and are you using a dedicated market data feed or aggregating from multiple exchanges? This determines whether we need a distributed message queue or can optimize with in-memory caching. Here's the architectural approach: - WEBSOCKET OPTIMIZATION: Implement binary protocols (Protocol Buffers or FlatBuffers) instead of JSON to reduce serialization overhead by 70% and achieve sub-100μs message parsing. - TRADE EXECUTION PIPELINE: Build an event-driven architecture using Redis Streams for order routing with guaranteed message ordering and exactly-once delivery semantics to prevent duplicate fills. - DATABASE LAYER: Use TimescaleDB for tick data storage with hypertable partitioning, achieving 500K inserts per second while maintaining query performance for historical analysis. - ASSET SCALING: Implement symbol sharding across multiple WebSocket connections with automatic failover to handle 10K+ instruments without hitting exchange rate limits.

@mayankinnovative

Hi, As per my understanding: You need a senior Spring Boot engineer to audit and optimize a trading backend for low latency, scalability, and stability. The focus is reducing order execution delay, strengthening the Redis-based risk engine, ensuring smooth handling of real-time data (market depth, option chain), and delivering production-ready features with strong testing, monitoring, and performance tuning. Implementation approach: I will begin with a deep codebase audit to identify latency bottlenecks, inefficient DB queries, and threading issues. Then optimize APIs, introduce async/event-driven patterns, and enhance caching via Redis. I’ll improve WebSocket handling for real-time data, implement load/stress testing, and add observability (logs, tracing, metrics). Refactoring will ensure modular, scalable architecture, followed by robust integration testing and performance validation. A few quick questions: 1. Current average order execution latency? 2. Which DB and message broker are in use? 3. Existing load handling capacity (TPS/users)? 4. Any current monitoring tools implemented? 5. Key pain points in the risk engine?

@mrresearcher99

Hi, I’m very interested in this opportunity and confident I can contribute to stabilizing and scaling your trading platform. I have strong backend experience with Java Spring Boot, focusing on high-performance and low-latency systems. I’ve worked on real-time architectures using WebSockets, optimized APIs, and handled high-load environments with Redis caching and efficient DB tuning. Relevant experience: Optimized backend services reducing API latency significantly in high-traffic systems Built real-time data pipelines and notification systems Experience with load/stress testing and performance monitoring (logs, tracing, metrics) Worked on scalable microservices with Redis and queue-based systems For your platform, I can: Audit and refactor the codebase for scalability Reduce order execution latency (critical path optimization) Improve Redis-based risk engine performance Implement robust testing (integration + load testing) Enhance observability (logs, tracing, metrics) I’m comfortable working in fast-paced environments and can start immediately with high availability. Let’s connect to discuss your current bottlenecks and priorities. Best regards, Bhargav

@Srashtasoft

A Warm Hello! Your prop-trading platform aligns perfectly with my experience in low-latency backend engineering and high-performance fintech systems. I’ve previously optimized trade-execution pipelines, rebuilt WebSocket layers for sub-millisecond message flow, and scaled asset universes beyond 10,000 instruments using Redis, horizontal microservices, and heavy DB/query tuning. For the first phase, I would begin with a deep audit of your backend—profiling hot paths, reducing blocking operations, optimizing DB schemas/indexing, and refining WebSocket/message-queue flow to cut execution latency. I’ll ensure the trading terminal handles large instrument sets smoothly, supported by caching, pagination strategies, and optimized payloads. Feature build-out will include real-time Market Depth + Option Chain, KYC integration, observability (metrics/logging/tracing), a robust notification system, Scalper Mode using your existing APIs, and affiliate module upgrades. End-to-end integration tests will wrap the entire stack to guarantee stability. I can start immediately and commit full-time for the 2-month engagement. Let’s discuss it more in chat. Best Regards, Jemin Sagar.

@chiragardeshna

Hi there, I understand your project for optimizing a real-time trading platform with low-latency execution and high instrument load handling, and I’ve worked on similar high-performance backend systems. You can review my work here: {portfolio link}. I am a strong fit because I have delivered scalable backend systems where latency, throughput, and reliability were critical. I have hands-on experience with WebSockets, distributed systems, caching strategies, and API optimization for real-time applications. I can audit and refactor your codebase, reduce execution latency, and stabilize systems handling 10,000+ instruments. I focus on performance tuning, observability, and production-grade reliability. I am available to start immediately and can deliver a stable, low-latency backend aligned with your goals. Regards Chirag

@prashanpatel557

Hello, I understand this is a high-performance trading system, and I can contribute specifically to latency optimisation, real-time data handling, and backend stability, even though my core stack is Python-based rather than pure SpringBoot. Here’s how I can add value: 1. Latency & Execution Optimisation • Analyse order flow (signal - API - execution) • Reduce bottlenecks using async processing, caching (Redis), and queue optimisation • Improve response time consistency (critical for trading) 2. Real-Time Systems • Optimise WebSocket streaming for market depth & option chain • Efficient handling of high-frequency updates • Reduce memory & CPU overhead under load 3. Risk Engine & Caching • Work with Redis for fast risk checks • Improve position tracking and order validation speed 4. Testing & Stability • End-to-end integration testing • Load/stress testing (simulate high instrument load) • Identify race conditions and failure points 5. Observability • Add structured logging, metrics, and performance tracking • Latency monitoring across modules Important Note: For deep SpringBoot refactoring, a Java specialist may be required. However, I can: • Work alongside your backend team • Optimise architecture, APIs, and performance-critical layers • Build/assist with microservices or supporting systems Availability: Full-time (immediate start) I have experience in trading systems, real-time pipelines, and automation, which aligns well with your performance goals.

@NEHABHAT92

Hi! I'm Neha, a seasoned Full-Stack Engineer with over 9 years of experience. I've specialized in web & mobile development with a strong command over backend systems using tools like Node.js. Although my background is not primarily in Fintech, I have successfully acquainted myself with new technology stacks throughout my career. My proficiency in Java, SpringBoot and API optimization gives me the capability to help transform your real-time stock trading data platform into an even more robust system. As an expert in low-latency backend systems, my skills align perfectly with your needs to stabilize, scale and optimize your existing codebase. My familiarity with databases, distributed systems, caching and load testing will be instrumental in reducing order execution latency and enhancing the risk management engine (which involves a high performance redis). Moreover,my commitment to providing extraordinary IT services starts from understanding the ideas and requirements of clients and then translating them into a fortified reality. I have extensive experience in delivering projects on time while maintaining the highest standards of quality, which is essential for your project.

@arshig8

Hello, I see you are looking for a senior engineer to optimize and scale a high-performance trading platform built on Java SpringBoot, focusing on reducing latency, improving system stability, and enhancing real-time trading features. I can help you achieve a robust, production-ready backend aligned with your performance goals. I have strong experience in backend architecture, API optimization, and scalable system design, working with Node.js, microservices, PostgreSQL, Redis caching, and real-time systems using WebSockets. While I have worked extensively on low-latency and high-load platforms, I also collaborate closely with SpringBoot-based systems for code audits, performance tuning, and distributed architecture improvements. I can assist with deep codebase review, reducing execution latency, optimizing Redis-based risk engines, implementing real-time notifications, and improving observability with logs and metrics. I also have experience in load testing, stress handling, and ensuring system reliability under high traffic conditions. One quick question: what is your current average order execution latency, and do you have existing benchmarks or bottlenecks identified? I’d be happy to discuss your system, audit approach, and roadmap to improve performance. Let’s connect and take this forward. Best regards, Arshiya

@bridgestonetech1

Hi, I’ve reviewed your requirement and it’s clear. Our team has solid experience in building and optimizing high-performance backend systems, including work with Java Spring Boot, real-time data handling, and scalable architectures. We can help stabilize your trading platform, reduce order execution latency, and improve overall system performance. We’ve worked on systems involving WebSockets, Redis-based caching, API optimization, and load testing, ensuring low-latency performance and reliability under high traffic. We can also support feature development like real-time notifications, observability layers, and stress-tested backend flows. Could you share the current architecture and main bottlenecks you’re facing in latency or scaling? We’re ready to start immediately and can commit full-time to deliver a stable, production-ready system within your timeline. Let’s connect to discuss next steps.

@amaank66

Hello, I’m highly interested in contributing to your prop trading platform. With **5+ years of experience**, I specialize in building and optimizing **low-latency, high-performance backend systems** using **Java Spring Boot**. **How I’ll add value:** **Core Engineering** • Deep codebase audit & refactoring for scalability and maintainability • Latency reduction in order execution (threading, async processing, DB tuning) • Optimization of **Redis-based risk management engine** • Robust end-to-end integration testing **Feature Development** • Real-time systems using **WebSockets** (market depth, option chain) • Load & stress testing with performance benchmarking • Observability stack (logs, tracing, metrics – Prometheus/Grafana) • Real-time notifications (risk alerts, position updates) • Efficient API enhancements for high-frequency trading **Technical Strengths** • Low-latency architecture & distributed systems • Advanced caching strategies (Redis) • DB performance tuning & query optimization • Experience with high-throughput fintech-style systems I understand the importance of **speed, reliability, and precision** in trading platforms and can contribute immediately with a full-time commitment. Let’s connect to discuss your system and start optimizing for production-grade performance. Best regards, Amaan Khan P. CUBEMOONS PVT LTD.

@Mayanks010

Hi there, You’re absolutely in the RIGHT PLACE. I’ve delivered SIMILAR PROJECTS multiple times and know EXACTLY how to execute this efficiently and correctly from day one. To lock down the SCOPE, TIMELINE, AND PRICING, I’ll need to ask you a few key questions. Unfortunately, Freelancer’s 1500 CHARACTER LIMIT doesn’t allow me to break everything down properly here. Let’s jump on CHAT so I can show you my PROVEN PAST WORK, walk you through the REAL RESULTS I’ve delivered, and outline a CLEAR ACTION PLAN for your project. You’ll immediately see why my approach is DIFFERENT and EFFECTIVE. If you’re serious about getting this done RIGHT, I’m ready to move forward. Looking forward to CONNECTING and WINNING TOGETHER. Cheers, Mayank Sahu

@Hrolgar

Senior backend engineer with fintech experience here. I work with high-throughput systems daily — real-time data processing, API performance, database optimization, and infrastructure that has to stay up. What I bring to your trading platform: - Production experience with real-time data pipelines — WebSocket feeds, message queues, low-latency processing - PostgreSQL and Redis optimization for high-frequency read/write patterns — connection pooling, query tuning, caching strategies - Node.js and React full-stack capability if frontend work is needed alongside backend - Infrastructure mindset: monitoring, alerting, automated failover, load testing before it hits production - I work in the financial sector professionally, so I understand the stakes when systems handle money For a 2-month engagement I would start with a system audit — identify the bottlenecks and quick wins first, then work through stabilization and scaling in prioritized sprints. You get clear deliverables each week, not a black box. Happy to discuss your current architecture and pain points on a call. Available to start immediately.

@rainbowarts

Hello, I’m a Full Stack / Backend engineer with strong experience in **real-time systems, WebSockets, and performance optimization**, and I’d be a great fit for stabilizing and scaling your trading platform. ### Relevant Experience * Low-latency backend optimization & API performance tuning * Real-time data systems (WebSockets, event-driven architecture) * Redis-based caching & high-speed data handling * Load/stress testing and system scalability improvements * Logging, monitoring, and observability setup ### How I Can Help * Audit & refactor your codebase for scalability * Reduce order execution latency (critical path optimization) * Build/optimize **market depth & option chain systems** * Implement robust **risk engine + real-time notifications** * Ensure stable, production-ready backend with full testing ### Availability Available to start immediately with high availability for this 2-month contract. Let’s discuss your current architecture and bottlenecks. Best regards, Shailendra Math

@rbtech1984

Hi There!!! ★★★★ High-Performance Trading Backend Optimization ★★★★ I understand you need a senior full-stack/backend engineer to stabilize and scale your Java SpringBoot prop trading platform, reduce order execution latency, implement real-time market depth and option chain features, and ensure fully tested, production-ready backend systems. Services mentioned here based on project details ⚜ Low-latency backend optimization ⚜ Codebase audit and refactoring for scalability ⚜ Real-time data handling with WebSockets ⚜ Redis-based risk management engine ⚜ End-to-end integration and load testing ⚜ API optimization and DB performance tuning ⚜ Observability, metrics, and notification system I have experience building high-performance trading and fintech systems, optimizing SpringBoot backends, and implementing real-time features with low latency. I’ll ensure stable, scalable, and tested delivery while keeping communication clear. Warm Regards, Farhin B.

@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

@varunsharma211a

Hi, Hope you're doing great! I just went through your project description, and I’m excited about the opportunity to work with you. Based on your requirements, I’m confident that I can deliver high-quality results that align perfectly with your vision. ? Here’s a quick snapshot of what I bring to the table: ✔️ Expert in PHP, HTML5, CSS3, JavaScript and Vue.js ✔️ Hands-on experience with frameworks like Laravel, Yii1/Yii2, CodeIgniter, CakePHP, Symfony ✔️ Strong database knowledge: MySQL ✔️ Proven track record of building dynamic, responsive, and user-friendly websites across various industries What sets me apart is not just my technical expertise, but my focus on clear communication, meeting deadlines, and building long-term relationships with clients. ? Let’s chat! I’d love to learn more about your project goals and see how I can help bring them to life. Looking forward to the possibility of working together! Thank you and best regards

@utsav007pandya

Let’s stabilize, optimize, and scale your prop trading platform for high-performance, low-latency execution. I understand the critical need for a fast, reliable backend capable of handling 10,000+ instruments, real-time market data, and minimal execution latency — and I can confidently deliver optimizations, refactoring, and feature implementation that meet production-grade standards. Recently, I worked on a fintech trading backend where I reduced order execution latency, optimized WebSocket streams for live market depth, and implemented observability layers with logging and performance metrics — all while ensuring scalability under high load. I have strong expertise in low-latency backend systems, WebSockets, API optimization, DB tuning, distributed caching, and real-time notification systems, and I can apply this to ensure your platform handles high throughput seamlessly. Let’s connect so I can start immediately on code audits, refactoring, and feature delivery, producing a stable, fully tested backend ready for production and long-term performance.

@kaustubhbawa123

Hi, I am an IIT Grad, MongoDB Certified Developer, ex-BFSI and worked at fortune 500 companies. I will make it a reality for you. As a Senior Full Stack / Backend Engineer, I will conduct a thorough codebase audit to identify scalability and maintainability issues, and implement optimized architecture using containerization (Docker) and orchestration (Kubernetes), with a focus on reducing order execution latency through efficient data processing and caching mechanisms. Kindly click on the chat button so we can discuss and get started. Will share you my prior projects done and my resume too. I have been doing freelancing since 2019 worked at top MNCs in both USA and India. Lets connect