I am a passionate programmer with good communication skills who is looking for a project to join as Tech lead/Senior Software Engineer. I value developing and maintaining strong relationships. Thought I have good Java background my current tech stack is Scala, Sick, scala-cats, cats-effect, ZIO, HTTP4S, playframework, sbt. I am a fan of functional programming. I've worked as a senior software developer, team leader and CTO for both small startups and large enterprises. I have a computer science background (algorithms, data structure, networking, design patterns), experience with Unix operating systems, basic administration skills, knowledge of SQL, etc. For the last 12 years, I have been working as a full stack web developer. I am a skilled JVM programmer (using languages such as Java, Scala, and Groovy for backend development). Spring stack and Java EE stack are my favorites for writing Java web apps, though lately I work mainly with typelevel stack (Scala, Sick, scala-cats, cats-effect, playframework) . I also use Javascript and have experience with angularJS, jQuery, HTML, CSS, and more. I am interested in a TDD/BDD approach and think it's the right way to develop apps. I prefer JUnit, Hamcrest, and JMockit for writing unit & integrations tests. Frontend libraries: AngularJs, VueJs, ReactJs, Redux, nextjs,, redux-saga, Next.js, material UI, bootstrap, buefy, bulma, remirror, unifiedjs Backend Libraries and Frameworks: Spring Framework, cats, shapeless, slick, Spring Boot, Spring Security, JPA, Spring Data JPA, Hibernate, OpenJPA, GWT, JDBC, JUnit, Hamcrest, JMockit, Play Framework, Silhouette, scala-test, akka, less, SASS, Antlr, Jasmine, scala-cats Languages: Java, Scala, Elm, Groovy, PHP, Javascript, HTML, SQL IDEs and Tools: Nginx, Apache, SBT, Maven, Gradle, Git, Jira, IntelliJ IDEA, Jenkins, Jetty, Tomcat, datatables, heroku, slick Platforms: Shopify, Stripe, HubSpot Devops: terraform, kubernetes, k8s, docker, skaffold, telepresence, AWS, Heroku, bash, patroni, postgres-operator, github actions

Highly skilled software developer with over 12 years of experience delivering exceptional solutions to clients. I specialize in full-stack development, including expertise in back-end, front-end, and DevOps, making me well-equipped to tackle complex projects. I have a proven track record in developing robust, scalable, and user-friendly applications across various industries, including finance, healthcare, and e-commerce. With excellent communication skills and a strong commitment to collaboration, I ensure smooth project delivery and successful outcomes. I am ready to bring my expertise to your next project on Upwork Back-end technologies and languages: - Java, Spring Boot, JPA/Hibernate + Spring Data - Scala, Play Framework, Akka - Node.Js, Express, Nest.Js, TypeScript - Maven/Gradle/SBT/NPM - Mysql, PostgreSql, MongoDB, Redis - GRPC, Protobuf DevOps and Microservices: - Linux/Unix - Docker - Nginx - Kubernetes - Prometheus - ELK stack Front-end technologies: - HTML/CSS/JavaScript - Angular - React

Need a backend system that's fast, reliable, and built to scale? I help businesses build production-grade backend systems — APIs, payment integrations, real-time features, and cloud infrastructure. I've spent 8+ years as a backend Scala engineer at a gaming company in Vancouver, shipping features used by thousands of players daily. Before that, I built full-stack platforms, trading systems, and enterprise applications across multiple industries. What I bring to your project: 8+ years building real-time backend systems in Scala (Play Framework, Akka, WebSockets) at scale. Payment integration experience with Stripe, WorldPay, Nuvei, Aeropay, and Paysafe. Recently built soundset.studio end-to-end — a SaaS music learning platform with auth, scheduling, Stripe payments, and serverless APIs (Dart, Supabase, Node.js, Vercel). Production experience with MongoDB, PostgreSQL, Redis, Docker, Kubernetes, GCP and OpenShift. Languages & frameworks: Scala, Python, Go, Node.js, Kotlin, Dart Databases: MongoDB, PostgreSQL, MySQL, Redis, Firebase, Supabase Cloud & DevOps: AWS, Docker, Kubernetes, GCP, OpenShift, Vercel, CI/CD 100% Job Success Score. Top Rated. Honest. I deliver clean, documented code on time — and I think through edge cases before they become bugs. Send me a message with your project details and I'll let you know how I can help.

My name is Jalen Morgan and I am currently a Cyber Officer in the US Army. Armed with expertise in numerous programming languages such as C/C++, Scala, Java, Python, Javascript, HTML/CSS and even bash scripting, Network Security and Incident Response, I have a broad range of skills. My academic background includes a B.S. in Computer Science and proven contributions to the OpenWPM project. As a collaborative team player, I adapt seamlessly to dynamic challenges and showcase a track record of achieving tangible results.

I've already had some experiences with literature transcription and translation during Highschool language programme. I can perfectly write both in Italian and English. So whatever document, video or file audio you need to be transcribed or translated, please don't hesitate to contact me.

Hi There, I'm Tomas senior Java/Scala & web developer in Prague, Czech republic. My mother tongue is Czech and I can fluently speak English. My experiences range from building simple responsive web sites to designing large scalable systems for financial business. I like working in a team that cares about design quality and solution's maintainability. I excel in solution design, Java based technologies and I'm fast in learning new technologies. I'm flexible in my working hours and happy yo work with other freelancers you wor with. I'm looking forward to solve your IT problems for you!

I build innovative ideas and dreams into reality. Over the years, I have developed my skills in Computer Science; most of them are self-taught; but my Engineering studies also helped me achieving greater levels. My top skills :- ⭐ Android ⭐ iOS ⭐ Java ⭐ Kotlin ⭐ Flutter ⭐ .NET ⭐ Python ⭐ GoLang ⭐ C ⭐ C++ ⭐ C# ⭐ MAUI ⭐ Git ⭐ Docker ⭐ Linux ⭐ KMP (Kotlin Multiplatform) ⭐ Swift ⭐

Experienced Software Engineer with a demonstrated history of working in the computer software industry. Skilled in Scala, Databases, Java. Expert in international startup operations, SAAS products, and cloud-based software. Strong engineering professional with a Bachelor of Science (BS) focused in Computer Software Engineering from Damascus University.

Senior Software Engineer with 7+ years of experience leading development of full-stack systems, responsive UIs, cloud microservices, developer tools and libraries, scalable DevOps pipelines, real-time analytics platforms, and recent experience with AI-driven tooling and evaluation systems. Having served as a project lead responsible for defining client needs, architecting solutions, and managing development teams, I bring both strong technical depth and clear, consistent communication to every engagement. I approach problem solving as an active challenge of navigating resources, constraints, and objectives, always striving for outcomes that unite efficiency and elegance. This philosophy guides every aspect of my work, from system architecture to implementation details, ensuring solutions that are both practical and refined. I believe Competence and Communication are the foundations of a successful partnership. From requirements gathering to final delivery, I work closely with clients to understand their goals and translate them into high-quality, maintainable software solutions. Let's work together to bring your ideas to life.

If you're building a serious product and need it done right the first time you're in the right place. I’m a Senior Full Stack Java Developer with 10+ years of experience designing and building scalable, high-performance applications using Spring Boot, Microservices, and modern frontend frameworks like React and Angular. I don’t just write code I help you architect, build, and scale systems that are production-ready and future-proof. 💼 What I Can Help You With: ✔️ Design & development of scalable backend systems (Spring Boot, Microservices) ✔️ Building secure, high-performance REST APIs ✔️ Full-stack development with React / Angular ✔️ System architecture & database design for long-term scalability ✔️ Cloud deployment on AWS (EC2, S3, RDS, Lambda) ✔️ Performance optimization & code refactoring ✔️ Third-party API integrations (payments, messaging, etc.) 🧠 Modern Edge (AI + Automation) I also help businesses leverage AI to improve workflows and products: • OpenAI / ChatGPT integrations • LangChain-based automation & document processing • Workflow automation using Zapier / Make • AI-powered features (chatbots, search, RAG systems) ⚙️ Tech Stack (Focused & Relevant) Backend: Java, Spring Boot, Spring Security, Microservices Frontend: React, Angular, JavaScript, TypeScript Database: PostgreSQL, MySQL, MongoDB, Redis Cloud & DevOps: AWS, Docker, Kubernetes, CI/CD Messaging: Kafka, ActiveMQ 💡 Why Clients Work With Me: • I write clean, maintainable, production-grade code • I think like an architect, not just a developer • I communicate clearly and don’t disappear mid-project • I focus on long-term value, not quick fixes If you’re looking for someone reliable who understands both business and technology, let’s talk.