Go Engineer for API Gateway and Platform Validation Engine

@tangramua

Hello! We have extensive experience building high-performance backend systems in Go, including API gateways, distributed services, and validation engines for concurrent processing at scale. Our team has worked on projects requiring robust message-driven architectures using tools like Kafka and SQS, designing modular frameworks, enforcing service contracts, and ensuring low-latency, fault-tolerant processing. For your project, we can help design and implement an API gateway, build reusable core libraries, and create a flexible validation framework tailored to your business logic. We also prioritize observability, monitoring, and performance optimization, ensuring the system remains scalable and reliable as usage grows. Our expertise spans RESTful APIs, microservices, cloud-based deployments, containerized environments and high-concurrency Go patterns using goroutines and channels. We are confident in our ability to deliver a robust, reusable, and scalable platform while collaborating closely with your team on distributed system architecture and workflow orchestration. 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, Kateryna Sales department Tangram Canada Inc.

@MashoodurRehman1

I am a seasoned Go Engineer with over 5 years of backend development experience specializing in designing distributed systems and API gateways. My strong expertise in Go, combined with a deep understanding of concurrency patterns and parallel processing, positions me well to meet your project's needs. I can create high-performance API gateway services and modular validation frameworks, leveraging my experience with RESTful APIs and message-driven architectures like SQS and Kafka to ensure efficient system design. With my professional background, I have successfully implemented request routing, middleware, and service orchestration layers, while ensuring high availability and fault tolerance. I possess a solid understanding of data structures, algorithms, and performance optimization. My familiarity with Linux-based environments and cloud platforms, particularly AWS, complements my capabilities in developing reusable core libraries and platform components. I am interested in further discussing how I can contribute to your platform validation engine. Could you provide more details on your current API gateway architecture? Looking forward to your response.

@blackrockwise

Hi there, I like how you have outlined your project description with clear expectations for a Senior Go Engineer focused on distributed systems and API gateway development. You are seeking a highly skilled Golang developer to build a performant, scalable backend platform handling API gateways, validation engines, concurrent processing, and message-driven orchestration. The emphasis on high availability, fault tolerance, and reusable components aligns well with my expertise. With over 6 years of backend development experience in Go, I have designed and implemented high-throughput API gateways and message queue systems using Kafka and SQS. I am proficient in concurrency patterns with goroutines and channels, and experienced in service orchestration, middleware design, and performance optimization on cloud platforms including AWS. My background also includes building modular validation frameworks and secure authentication systems, matched with a strong understanding of distributed microservices architectures. I am confident I can deliver robust, maintainable code and collaborate closely with your team to meet your architectural goals and build observability into the platform. I look forward to discussing how I can contribute to your project and help take your platform to the next level. Please feel free to reach out so we can explore this opportunity further.

@koolvishruth

With my extensive 8+ years of full-stack development experience, I can bring immense value to your project as a Go Engineer. My core expertise lies in designing and implementing high-performance systems much like what you're seeking for this role. I have a deep understanding of the Go language and have contributed extensively to the building of distributed systems using goroutines, channels, message queues, and validation frameworks - which are all key responsibilities within your project. Moreover, my work in automations, integrations, and API development also dovetails with the broader infrastructure requirements of your project. Abilities like maintaining and enforcing internal service contracts and data schemas while ensuring high availability and fault tolerance resonate deeply with how I approach development. Additionally, my proficiency in designing scalable solutions — both in terms of software engineering and cloud infrastructure — will ensure that the resulting architecture meets your platform's present needs and is ready to expand as your company grows.

@juanjosec63

Hi, As a individual developer, I can help in your project focusing on the most important parts like designing high-performance API gateway services in Go, building concurrent processing pipelines, implementing validation frameworks, and structuring message-driven systems for scalable distributed environments. With my expertise in full-stack development and experience working with modern web technologies like Golang, REST APIs, microservices architecture, concurrency patterns, Kafka or SQS, and AWS-based systems, I can fix this quickly. I can contribute to building low-latency, fault-tolerant backend infrastructure with clean routing layers, reusable core libraries, strong validation engines, and full observability including logging, tracing, and metrics. I’m comfortable working in Linux environments, collaborating across teams, and taking ownership of critical platform components while maintaining performance and reliability at scale. You can expect clear communication, fast turnaround, and a high-quality result that fits seamlessly into your existing workflow. Best regards, Juan

@tobiask5

Hi there, I hope you are doing well. You are looking for a skilled Go (Golang) engineer to design and build high-performance distributed backend systems, including API gateway architecture, validation frameworks, and concurrent processing systems at scale. With over 5 years of experience in backend development, I have extensive expertise in designing and implementing high-performance API services using Go, as well as building message-driven architectures and concurrent processing systems. I will implement efficient, scalable backend services with a focus on high availability, fault tolerance, and low-latency processing, ensuring that all systems operate seamlessly at scale. I will also collaborate with your team to create reusable platform components and libraries, as well as ensure observability and performance optimization across the entire system. Best regards, Tobias

@justinw45

Hello, I understand you are looking for a highly skilled Go engineer to design and build high-performance, distributed backend systems with a focus on API gateway architecture, validation frameworks, and concurrent processing systems operating at scale. My expertise lies in developing core platform infrastructure handling authentication, request routing, validation pipelines, and message-based orchestration. I have over 5 years of backend development experience with a deep understanding of concurrency patterns, RESTful APIs, and service-oriented architecture. Additionally, I have experience with message queues, asynchronous processing, and designing reusable frameworks. I approach system design with a focus on performance, reliability, and clean design, ensuring high availability, fault tolerance, and low-latency processing. I am ready to collaborate with your team on distributed system design, building observability into systems, and defining and enforcing internal service contracts and data schemas. I am excited about the opportunity to discuss how I can contribute to your project further. Best regards, Justin

@temoberishvili

Hello, I’ve gone through your requirements and this aligns closely with my experience in building distributed systems in Go. I’ve worked on API gateway services, high-throughput backends, and validation pipelines with strong focus on performance and reliability. I have hands-on experience with goroutines, channels, and designing concurrent processing systems. I’ve also built message-driven architectures using Kafka/SQS, including routing layers, middleware, and service orchestration. I focus on clean, reusable core libraries and scalable system design. Observability, fault tolerance, and low-latency processing are always part of my approach. I can contribute both at architecture level and implementation, ensuring production-grade systems.

@Solutionzhere

Hi, SolutionzHere has built Go-based API gateways, validation engines, and Kafka/SQS-driven systems for fintech scale. Your budget is below market for this level—recommended: $35/hr for senior-grade delivery. Approach: Go (Gin/Fiber), Kafka/SQS, Redis, OpenTelemetry, Docker/K8s, AWS. Timeline: Ongoing engagement (MVP gateway + validation core in 4–6 weeks). We focus on low-latency routing, pluggable validation pipelines, and strong observability. Available to start immediately. Question: Do you already have a gateway baseline (e.g., Kong/Envoy) or should we build from scratch?

@noursherif030

As an adept software engineer and certified information systems professional, I'm convinced that my diverse background and impressive skillset make me the best candidate to lead your Go (Golang) development project. I have successfully delivered and managed high-throughput backend services, designed API gateways, and built secure and scalable platform components; all of which are vital to the job requirements. With 5+ years of experience in backend development, expertise in Go, and a deep understanding of data structures/algorithms, I am confident in my ability to design high-performance API gateway services using concurrent processing systems like goroutines and channels. Moreover, my experience with message queues (e.g. SQS, Kafka) aligns perfectly with your need for a professional who can implement message-driven architectures into your validation pipelines. Additionally, you’ll benefit from my strong foundation in Linux-based environments and familiarity with cloud platforms like AWS— skills that will be instrumental in ensuring fault tolerance, low-latency processing , and high-availability for your platform infrastructure.

@designysoft

Hello, hope you are doing well. I have reviewed your requirement and bring strong experience in designing high-performance backend systems and API architectures, with a focus on scalability, concurrency, and clean service design. While my primary stack includes .NET Core and Node.js, I have worked on distributed systems, API gateways, message-driven architectures (Kafka/SQS), and validation workflows, aligning closely with your platform needs. I am experienced in building low-latency, fault-tolerant services, implementing middleware, authentication layers, and observability (logging, tracing, metrics), along with working in Linux and AWS environments. I can contribute effectively to designing reusable components and scalable infrastructure. Available to start immediately and open to discussing your system architecture in detail. Regards

@JawadIT

Hi There, I have been working on Golang, Java and Python for about 13+ years and have developed full scale applications using almost all of the Microservice Architectures like API Gateways, CQRS, Circuit Breakers etc. Following is the summary of my Tech Stack. Languages and Frameworks > Java, Python, Spring Boot, Flask, Django, NodeJs, Reach, Hibernate, Struts, Enterprise Java Beans. API Integrations > RESTFul APIs, SOAP APIs, Queue Based Integrations, GraphQL, Streams, WebSockets etc. Databases > MySQL, MongoDB, Oracle, Postgres. Web Servers > WebLogic, JBoss, Payara, Tomcat, Uvicorn, Waitress. Architectures > Microservices, Monolithic, Hybrid, SOA. Infrastructures > Cloud Solutions and On prem solutions includes, OpenShift, AWS, GCP Messaging Platforms > Kafka, RabbitMQ, IBMMQ, ActiveMQ. Operating Systems > Linux, AIX, Windows. Lets connect.

@melikatfz

Hi there, When developing high-performance distributed systems, challenges like handling concurrent processing and ensuring low-latency are common. This is where my expertise as a seasoned Go engineer comes in, effectively designing scalable API gateways and validation engines to ensure robust system performance and reliability. Here are my questions: What specific validation frameworks are you currently using, or plan to use? Could you share more about the existing message-driven architecture in place? Let’s discuss your project now!

@rosscarter1011

Hi there, Regarding your quest for a seasoned Go engineer, one critical insight lies in balancing API gateway performance with concurrent processing. My approach ensures optimal request routing, while delivering robust message orchestration even under high loads, a nuance often missed by amateurs. I once developed an API gateway for a financial platform, achieving a 40% latency reduction, significantly enhancing transaction speeds. I include 30 days of post-deployment bug-fixing to guarantee smooth integration. How are you currently handling schema validation across distributed components? Let's discuss how I can streamline your systems.

@billybryan98

Hello, I hope you are doing well. I’m an independent Go engineer focused on building high-performance, distributed backends. I design API gateways, validation pipelines, and scalable routing/middleware that stay reliable under heavy load. My strengths are Go concurrency, low-latency structuring, and reusable platform components you can ship across services. In previous work I’ve built modular validation frameworks, crafted API gateway layers with efficient routing and service orchestration, and implemented message-driven flows using Kafka and SQS. I’ve implemented observability into critical paths with tracing, metrics, and structured logging to keep systems healthy at scale. I can tackle this work end-to-end based on my experience, delivering a clean, fast, and fault-tolerant platform. If great alignment exists, I’ll outline a concrete plan and milestones within a few days, and start coding soon after. Best regards, Billy Bryan

@maximg10

⭐Hi, I’m ready to assist you right away!⭐ I believe I’d be a great fit for your project since my 5+ years of backend development experience in Go have honed my expertise in designing high-performance systems. I have a deep understanding of concurrency patterns and have implemented validation frameworks and rule engines. Additionally, I excel at designing API gateways and optimizing request routing for scalable solutions. This project will address the critical need for a robust API gateway architecture and validation framework, ensuring high-performance and scalability. If you have any questions, would like to discuss the project in more detail, or would like to know how I can help, we can schedule a meeting. Thank you. Maxim

@mugencodes

Hello, I understand that you are looking for a highly skilled Go engineer to design and build high-performance, distributed backend systems with a focus on API gateway architecture, validation frameworks, and concurrent processing systems operating at scale. I have previous experience developing a similar project involving API Development, Microservices, and Java. One of the challenges I faced was optimizing request routing and middleware layers, which I successfully addressed by implementing efficient algorithms and modular validation frameworks. I would love to discuss this project further with you and explore how my expertise aligns with your requirements. Please let me know a convenient time for a call to delve into the details. Regards, Jayabrata Bhaduri

@wasifmuneer

Hi there, I'd love the opportunity to connect and discuss your project in detail—feel free to reach out via chat anytime. I'm a full-stack developer with strong experience in building both web and desktop applications. I’m confident I can manage and deliver your project efficiently and on time. I have hands-on experience in DevOps, giving me a broader perspective on project deployment and scalability. My technical expertise includes: MERN / MEAN Stack: Extensive hands-on and team leadership experience, ensuring smooth front-end to back-end integration. .NET Core & Angular: Implemented various data visualizations using D3.js, integrated complex APIs, and developed dynamic, responsive applications. Azure Logic Apps & SharePoint: Built multiple workflow automation solutions; also familiar with PowerApps development. Salesforce Development: Developed Apex triggers to interact with MSSQL via custom .NET APIs. Created Visualforce pages to fetch and display external API data. Performed CRUD operations on both standard/custom Salesforce objects. Conducted R&D on Salesforce Flows for automation (with some custom object limitations). I bring a full-lifecycle development mindset and enjoy solving real-world business challenges through code. Looking forward to hearing from you! Thanks!

@engruhulajom

Hello, Hope you are doing fine. I am a senior Go engineer with deep experience building high‑performance API gateways, validation engines, and concurrent systems. I have designed request routing, authentication middleware, and rule‑based validation pipelines using goroutines, channels, and message queues (SQS/Kafka). I focus on low‑latency, fault‑tolerant architecture with strong observability. I can deliver reusable platform components and enforce service contracts. I am comfortable with AWS, Docker, and distributed systems. Let’s discuss your specific platform needs in chat. Best regards, Md Ruhul Ajom