
Completed
Posted
Paid on delivery
I have a networking-heavy service currently written in Python that is hitting latency ceilings. The logic itself is solid, but the interpreter overhead is keeping round-trip times higher than acceptable for our use case. I want the same functionality re-implemented in a faster, compiled language—Golang is the front-runner for its strong concurrency model, but I’m open to C, Rust, or anything else you can justify as faster in production. What I’d like from you: • A clean, idiomatic rewrite of the existing codebase, preserving every user-facing behaviour. • Demonstrable latency improvements under the same load profile; a simple before-and-after benchmark script is fine. • Clear build instructions plus a short README that highlights any external libraries or system-level tunings required. If you can squeeze out extra performance by adjusting socket handling, buffering, or event loops, all the better—just document each change so I can follow your reasoning. Code must be well-commented and ready to drop into our CI pipeline. experience with low latency coding is a must, rewrote to a faster language is also required, several ai prompts can do most of the rewrite
Project ID: 40431315
55 proposals
Remote project
Active 8 days ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs

I have rewritten Python networking services into Go and Rust before, cutting latency by over 50% each time. The interpreter overhead you're hitting is exactly what compiled languages solve. For [login to view URL] I rewrote a WebSocket relay from Python to Go, reducing p99 latency from 28ms to 9ms. For [login to view URL] I moved a UDP telemetry pipeline to Rust, dropping packet processing time by 60%. My plan: analyze your existing Python code, identify hot paths, rewrite in Go (or Rust if you prefer) preserving all behavior, add before‑and‑after benchmark scripts, document build steps and any system tunings. The final code will be clean, commented, and ready for your CI pipeline. Price is $100 CAD, timeline is 5 business days. Share the existing codebase and I will deliver the faster, compiled version. Ricardo
$100 CAD in 5 days
0.0
0.0
55 freelancers are bidding on average $148 CAD for this job

I am very interested in applying for your job since it seems to fit very will with my experience and skills. Regards SamirBanna
$150 CAD in 1 day
5.7
5.7

Hi, With extensive experience in low-latency systems and language optimization, I will provide a clean, idiomatic rewrite of your Python networking code in Golang, ensuring identical user-facing behavior. I will also demonstrate latency improvements through benchmarking and provide clear build instructions along with a concise README detailing system and external library requirements. Additionally, I will explore socket handling, buffering, and event loop optimizations to boost performance and document every change for your CI integration. What specific networking protocols and load scenarios should I focus on in the benchmarks to best demonstrate the latency improvements? 'Sincerely,' Juan Aponte
$175 CAD in 1 day
5.2
5.2

Hello, I can reimplement the same functionality of your networking heavy service in Golang. I have a rich experience in low latency coding. Let's chat and discuss this project in more detail. I am looking forward to working with you, Fahad.
$150 CAD in 1 day
5.3
5.3

Hi there, ❤️❤️❤️ I’ve reviewed your project and it aligns well with my experience in low-latency networking, Golang/Rust/C, and production-grade rewrites. I can help you re-implement your Python networking-heavy service in a compiled language while preserving current user-facing behavior and proving measurable latency gains. How I can help: • Rewrite the service cleanly and idiomatically in Go as the front-runner, or justify Rust/C where profiling suggests better results. • Build before/after benchmarks under the same load profile to demonstrate RTT and throughput improvements. • Optimize socket handling, buffering, concurrency/event-loop design, and Linux-level tuning where useful, with clear documentation for every change. Relevant experience: I’ve worked on latency-sensitive backend and networking systems involving Python-to-Go/Rust migrations, CI-ready builds, benchmarking, and Linux performance tuning. I can start working immediately. Approach: I’ll first map existing behavior, add/confirm baseline tests, profile bottlenecks, then deliver well-commented code, build instructions, a concise README, and CI-friendly structure. Best regards,
$300 CAD in 7 days
4.2
4.2

Hello! I am a Florida-based senior software engineer with extensive experience in Python and networking solutions. I thoroughly read your project description and understand the challenge of hitting latency ceilings in your networking-heavy service. With over 15 years in software development and a strong grasp of C, Golang, and CI/CD processes, I am well-equipped to tackle this task. My goal is to optimize your service for lower latency, ensuring efficient data handling and robust performance. Could you please clarify the following questions to help me better understand the project? 1. What specific latency metrics are you aiming to improve, and do you have current benchmarks? 2. Are there specific tools or frameworks you prefer for this rewrite? 3. What is your timeline for this project, and do you have any existing documentation I should review? I have successfully worked on similar projects, including a custom networking tool for a small SaaS platform, a streamlined data processing service, and a low-latency communications app. To achieve optimal results, I propose a phased approach: initial assessment, identifying bottlenecks, implementing solutions, and thorough testing. Let’s connect and discuss how I can help elevate your project! Looking forward to your response. -James
$250 CAD in 4 days
4.2
4.2

Hello, I have experience with Python networking services and I have successfully implemented high-performance messaging systems and real-time data processing applications. I can rewrite your service in Golang focusing on its concurrency features to improve latency significantly while maintaining user-facing behavior. For instance, utilizing Goroutines for handling connections can lead to substantial performance gains. I would also implement efficient data serialization techniques and provide a comprehensive benchmark script to demonstrate latency improvements. Let's discuss!
$200 CAD in 3 days
4.0
4.0

I'm SUNIL, an experienced full-stack developer. My core strength is providing complete end-to-end solutions with a proficiency in multiple languages and frameworks. This is exactly what your project needs: a fluent transition of your Python codebase to a faster language while preserving all user-facing behaviors. My skills in C and Python, coupled with my deep knowledge of networking protocols and event handling, enable me to grasp the underlying logic swiftly and make a compelling case for my choice of language: Golang. Its robust concurrency model can particularly impact the latency profile of your system positively. Throughout my 12+ years in this industry, I have successfully optimized codebases for greater performance, scalability, and business growth. I assure you that I can deliver not just a low-latency rewrite of your current system but also authentic before-and-after benchmarks that demonstrate the tangible improvements achieved under the same load profiles. I will document every change clearly, highlighting any external libraries or system-level adjustments required, ensuring smooth integration into your existing CI pipeline with minimal friction.
$100 CAD in 7 days
3.8
3.8

Hi, there, I have 7+ years of experience in software engineering, focusing extensively on rewriting Python codebases into faster, compiled languages like Go, Rust, and C. My expertise includes optimizing networking-heavy services for low-latency environments, leveraging idiomatic language features and tuning socket and event loop handling for top-tier performance. I have mastered the balance between performance and maintaining precise behavioral parity with original systems. ✅ Rewrite your Python networking service into idiomatic Go, preserving all user-facing behaviors with clean, maintainable code. ✅ Implement benchmarking scripts mirroring your current load profile to demonstrate tangible latency reductions. ✅ Optimize socket buffering and event loop strategies where possible, documenting each change clearly. ✅ Provide detailed build instructions and a concise README highlighting dependencies and system-level tunings. ✅ Ensure code is well-commented and CI-ready for seamless integration into your pipelines. What specific latency targets or benchmarks are you aiming to achieve with this rewrite? I look forward to working with you. Best Regards, Rosita Iniesta.
$175 CAD in 1 day
3.0
3.0

Hello, With over 7 years of experience in Python and Golang, I specialize in building scalable systems with a focus on performance and real-time processing. I have a strong background in full-stack development and modern web/mobile apps, along with expertise in AI systems and low-latency architectures. I understand your requirement for a low-latency rewrite of your Python networking service to a faster language like Golang. I will provide a clean rewrite while preserving all user-facing behaviors, demonstrating latency improvements, and offering clear build instructions with a README. I will optimize socket handling, buffering, and event loops to enhance performance, documenting each change for transparency. Let's discuss this project further in the chat. Thanks.
$160 CAD in 7 days
2.9
2.9

Hi there, I read your requirements carefully, and I can help rewrite your Python networking-heavy service into a faster compiled implementation, with **Go** as the preferred option unless profiling shows Rust/C/C++ would be a better fit. I’ll preserve the existing behavior, review the current networking flow, identify latency bottlenecks, then rebuild the service with clean concurrency, efficient socket handling, proper buffering, and production-ready structure. I’ll also provide before/after benchmark results under the same load profile so the performance gain is measurable, not just assumed. I can help with: * Python-to-Go networking rewrite * Low-latency socket/concurrency optimization * Behavior-matching implementation * Benchmark script and latency comparison * Build instructions and README * CI-ready, well-commented code I usually start by profiling the current Python version first, then rewrite only after confirming the critical paths, so the final result is faster and easier to maintain. Cost: $250 CAD || Timeline: 2-3 days depending on codebase size Payment and timeline details can be discussed further to align with your expectations. I’d be happy to deliver a clean, fast rewrite with clear benchmarks and documentation. Best regards, Oluwatobi Okedairo
$250 CAD in 2 days
2.4
2.4

Hi, I can help rewrite your Python networking service into a faster compiled implementation without changing the user-facing behavior. I have strong experience with low-latency systems, socket-heavy services, and production rewrites where performance matters more than just syntax translation. I would first map the current behavior, then rebuild the core paths in Golang unless profiling shows Rust or C will give a better result for your workload. I will preserve the existing logic, add a benchmark harness for before-and-after comparison, and tune the hot paths around sockets, buffering, and event handling where it actually moves the needle. You will also get clear build steps, a concise README, and code that is clean enough for CI and future maintenance. I can communicate in real time in your time zone and provide a simple demo or part of the project within 12 hours of starting. Q1: Do you already have the current Python codebase and a target benchmark or load profile I should match? Q2: Is Golang your preferred output, or would you like me to justify Rust or C if profiling suggests a better fit? Q3: Are there any deployment constraints such as Linux version, container use, or required libraries I should keep in mind? Best regards, Daniel
$10 CAD in 3 days
1.7
1.7

Having spent over a decade in full-stack web development, I have experienced almost every facet of code optimization that your project requires. Migrating your networking-heavy Python service to a quicker, compiled language is something I am quite proficient at due to my specialization in languages like C and Python. I've utilized these languages extensively to provide low-latency solutions to my clients' needs. Building a clean and idiomatic codebase while preserving every functionality isn't just a challenge for you; it's something I frequently come across in my projects, except my solutions are tested and proven to work. I'll provide a benchmark script for you, clearly highlighting the before-and-after improvement on the latency issue you are currently facing. In addition to this, if revisions are necessary on socket handling, buffering, or event loops for enhancing performance, I'll keep track of every change so it's easier for you to understand why, when and how these adjustments were made. Alongside providing well-commented and informative code ready for your CI pipeline. My effective communication skills ensure that project objectives are met with minimal iterations explicitly comprehending even the most complex assignment objectives ensuring successful project delivery on-time without compromising any detail. Let us collaborate to make your Python networking even faster!
$120 CAD in 7 days
2.5
2.5

Hello, How do you plan to ensure seamless integration of the rewritten codebase with your existing CI/CD pipeline and ensure no disruptions to your current workflow? With over 7 years of experience in CI/CD, Linux, and Python, I am well-equipped to tackle the challenge of rewriting your networking-heavy service for low-latency performance. Leveraging my expertise, I would approach this project by meticulously analyzing the existing codebase to identify performance bottlenecks and strategically rewrite it in a faster, compiled language such as Golang. By focusing on preserving user-facing behavior and implementing optimized socket handling and event loops, I aim to deliver a solution that not only meets but exceeds your expectations for reduced latency. I prioritize clear communication and am eager to discuss how we can move forward with this project. Best regards, Borys
$160 CAD in 7 days
1.7
1.7

Recently I finished a comparable project where I took a latency sensitive (e.g., live streaming) networking service written in Python and conducted a migration into C which greatly increased throughput and decreased end to end response times. My background includes many years of experience developing high performance backend systems, low latency networking solutions, and concurrency heavy systems in both python, C and rust. I will evaluate your current python codebase to maintain all outside behaviors of it and then rewrite it into an idiomatic production ready C implementation while providing optimised socket handling techniques/concurrency patterns for benchmarking purposes to evaluate measurable performance gains prior to the agreed upon completion date of this project. I want to build a productive working relationship with you so we can find a solution that is mutually beneficial to both parties during this project.
$155 CAD in 7 days
1.9
1.9

I'll rewrite your Python networking service in Go, targeting the latency bottlenecks you're experiencing from interpreter overhead. Go's goroutines and efficient runtime will significantly reduce your round-trip times while maintaining identical user-facing behavior. I'll analyze your existing Python codebase, implement the same networking logic using Go's net package and concurrent patterns, then create comprehensive before/after benchmarks measuring latency under your current load profile. The deliverable includes fully idiomatic Go code, Docker-ready build setup, benchmark results proving performance gains, and detailed README with any system tuning recommendations. I'll also structure the code for easy maintenance and potential future optimizations, ensuring your team can extend it seamlessly.
$280 CAD in 7 days
1.4
1.4

Hi, This is Abhiram from UK. I understand the need to rewrite your Python networking service for lower latency. Having tackled similar projects, I grasp the technical hurdles involved in transitioning to a faster language like Golang. In approaching this task, my focus lies on ensuring a seamless transition while significantly reducing latency. I aim to enhance performance through optimized socket handling, buffering, and efficient event loops, all well-documented for your clarity. Let me ask you a couple of things so I understand it better: Q1- Are there specific latency targets you are aiming to achieve post-rewrite? Q2- Do you have any preferences regarding the external libraries or system-level tunings to be incorporated? Looking forward to discussing further and collaborating on this project.
$150 CAD in 3 days
1.1
1.1

Hi there, THE CHALLENGE is to effectively transition a Python networking-heavy service to a faster compiled language while maintaining current functionality and significantly reducing latency. The project demands meticulous attention to detail to ensure that every user-facing behavior is preserved in the new codebase. Additionally, the ability to optimize socket handling, buffering, and event loops to further enhance performance is crucial. I will approach this challenge by conducting a thorough analysis of the existing codebase, identifying key areas for improvement, and implementing a clean, idiomatic rewrite in the selected language. I will prioritize clear documentation, including build instructions and a README outlining any necessary external libraries or system-level adjustments. Throughout the process, I will provide transparent benchmarks to demonstrate tangible latency improvements and ensure seamless integration into your CI pipeline. Regards, Matheus
$160 CAD in 7 days
0.6
0.6

Hi, I can deliver what you need. I have read your project and will deliver work that you can be proud to share. I am an expert with 4 years of experience in Python, Rust, CI/CD and I helped many clients reach their goals. Visit my profile to check my latest work and read what clients say. If this sounds good, connect in chat and we can start. Looking forward.
$160 CAD in 7 days
0.8
0.8

Hitting latency ceilings in Python networking usually points to the GIL as the real culprit, not the logic itself. I would rewrite the hot path in Go, keep a thin Python wrapper for any existing integrations, and run benchmarks before and after so you have hard numbers on the improvement. Working rewrite in 5 to 7 days depending on service size. These are starting estimates based on what is in the post. Final scope comes once I see the code. Can start today. Want to jump on a quick call?
$180 CAD in 7 days
1.0
1.0

Hello! I’ve successfully built a networking service similar to what you’re describing, where we achieved a significant latency reduction by transitioning from Python to Go. The results were impressive, with over 30% improvement in round-trip times, thanks to Go's efficient concurrency model and lower overhead. For your project, I would focus on a clean, idiomatic rewrite while ensuring we preserve all user-facing behaviors. I’d run benchmarks both before and after, so you can see the performance gains directly. I’m curious, have you considered any specific concurrency patterns or socket optimizations that you think work best for your use case? If you’re open, I can share the similar build I’ve done and we can see if it fits your needs. Looking forward to your thoughts!
$155 CAD in 7 days
1.0
1.0

Surrey, Canada
Payment method verified
Member since Aug 22, 2019
$30-250 CAD
$30-250 CAD
$30-250 CAD
$10-30 CAD
$30-250 CAD
$250-750 USD
$30-250 USD
₹12500-37500 INR
$250-750 USD
€30-250 EUR
₹750-1250 INR / hour
$1500-3000 USD
₹600-1500 INR
$500-1000 USD / hour
₹37500-75000 INR
$10-30 USD
$600-1200 USD
$25-50 USD / hour
$15-25 USD / hour
€30-250 EUR
$15-25 USD / hour
₹12500-37500 INR
$10-30 USD
$30-250 USD
€8-30 EUR