Backend Engineer for fintech & payment systems. I build payment gateway integrations, ledger systems, and merchant aggregators that don’t lose money — no duplicate charges, no dropped transactions, no silent failures. Built: multi-PJP payment router with auto-failover, Midtrans integration with crash-safe transaction handling, 6-service banking microservices system, 24K+ record system with 40+ REST endpoints. IEEE Best Paper 2025 (ML). Stack: Go · Java Spring Boot · PostgreSQL · Kafka · Redis · gRPC · Docker If your product moves money, I build the backend that makes sure it moves correctly — every time.

Senior backend engineer with 7+ years building production systems in Python, C++, Ruby, and React, with deep infrastructure experience in Kubernetes, PostgreSQL, ClickHouse, Docker, Kafka. Spent the last 5 years at NGENIX designing and shipping REST APIs, microservices, and platform infrastructure, and grew into technical leadership - including scaling the backend team from 3 to 6 engineers - without stepping away from hands-on architecture and delivery. Continues to build independently outside of work. In IT - 20+ years.

I am a software developer specializing in building mobile and web applications with a focus on product development. I value clear communication, proactivity, and a continuous pursuit of efficient solutions to complex challenges. My core skills include Next.js with React and its ecosystem, React Native for mobile development, TypeScript, Tailwind CSS for styling, SQL and ClickHouse for data structuring, as well as using Node.js for building APIs. Committed to professional growth, I am constantly dedicated to learning new technologies, enhancing both my technical expertise and interpersonal skills. 💪Skills: ➡ NextJs ➡ ReactJs ➡ React Native ➡ Typescript ➡ NodeJs ➡ ExpressJs ➡ Web API/Rest & Restful ➡ Tailwind ➡ Responsive Design 🛠️Tools: ➡ Visual Studio Code ➡ Github ➡ Figma

I'm a highly skilled developer with over 10 years of experience in the fintech and marketing business domains. I have a proven track record of successfully leading development teams and managing quality assurance and business analysis processes. Technical stack mainly consists of Node.js, PostgreSQL, and RabbitMQ. Also can do some frontend work on React/React Native/Vue. Passionate about creating clean, efficient, and scalable code that meets the needs of my clients. Whether you need a custom application built from scratch or help with an existing project, I have the expertise and experience to deliver results.

Are you spending hours building reports manually, struggling to track KPIs, or finding it difficult to turn data into clear business decisions? I'm a Data Analyst with 4+ years of experience at Snapp Pay, one of Iran's largest fintech companies. I specialize in Power BI, SQL, and business analytics, helping teams transform raw data into dashboards and reports that drive action. I can help you: ✓ Build interactive Power BI dashboards ✓ Automate manual reporting processes ✓ Analyze business and customer performance ✓ Create KPI tracking and executive reporting ✓ Extract and transform data using SQL ✓ Deliver insights that support growth and decision-making My experience includes working with large-scale datasets, designing reporting solutions, and helping stakeholders understand the metrics that matter most. Tools: Power BI | SQL | Python | ClickHouse | Tableau | Google Sheets Whether you need a dashboard built from scratch, an existing report improved, or help understanding your business data, I'd be happy to help.

I am a Senior Java Backend Engineer with 8+ years of commercial experience specializing in FinTech, scalable microservices, and secure enterprise architectures. Core Technical Toolkit: - Java, Spring Framework, REST API - PostgreSQL, Kafka, Elasticsearch, Redis, Docker .. I have a strong track record of designing financial platforms from scratch, implementing secure IAM layers, and optimizing database performance. Open to long-term remote contracts.

I am a support analyst with experience helping clients resolve questions and issues related to SaaS platforms, always striving to make the experience as simple and pleasant as possible. I also have a background in software development, which gives me a strong problem-solving mindset and helps me troubleshoot technical issues effectively.

I am a comprehensive Product Engineer who bridges the gap between high-level UI/UX design and complex infrastructure. With a deep mastery of the T3 Stack (Next.js, TypeScript) and robust backend frameworks like NestJS, FastAPI, and Django, I build scalable, type-safe applications from the first wireframe in Figma to the final pull request. My expertise isn't just in writing clean code, but in architecting the entire data lifecycle—leveraging PostgreSQL and MongoDB for core storage, Redis for caching, ClickHouse for high-performance analytics, and Kafka for real-time event streaming. Beyond the application layer, I am a hands-on DevOps specialist focused on reliability and scale. I don't just "hand off" code; I containerize and orchestrate it using Kubernetes and Docker, ensuring your product is production-ready, highly available, and easily maintainable. Whether you are a startup needing a rapid MVP or an enterprise scaling a distributed system, I provide the technical leadership and execution required to deliver a polished, battle-tested product end-to-end.

Senior Software Engineer with over a decade of experience in web and backend development, focusing on API design, system integrations, and event-driven processing, including technical leadership and mentoring.

Software & Data Engineer with 3+ years of experience building and optimizing large-scale, data-intensive systems in production environments. Proficient in SQL, Python, and ETL/ELT pipelines, with a strong focus on processing complex datasets, ensuring data integrity, and improving data workflows for system performance. Proven ability to automate processes, write maintainable code, perform structured root cause analysis, and translate operational data into actionable technical solutions. Experienced with distributed systems and microservices architectures, relational and non-relational databases, and cross-functional collaboration to deliver scalable platforms serving global enterprise customers.