Hire the Best AWS Lambda Developers
in the United States

🏆 𝗘𝘅-𝗚𝗼𝗼𝗴𝗹𝗲 & 𝗔𝗺𝗮𝘇𝗼𝗻 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 | 𝟮𝟬+ 𝗬𝗲𝗮𝗿𝘀 𝗼𝗳 𝗘𝘅𝗽. 🤝 - 𝗙𝗿𝗲𝗲 𝟯𝟬–𝟲𝟬 𝗺𝗶𝗻𝘂𝘁𝗲 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻 before starting the project - 𝗨𝗦-𝗯𝗮𝘀𝗲𝗱 𝗦𝗲𝗻𝗶𝗼𝗿 𝗡𝗼𝗱𝗲.𝗷𝘀 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 & 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗲𝗱 𝗔𝗪𝗦 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 - 𝗖𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗲𝗱 𝘄𝗶𝘁𝗵 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝗮𝗻𝗱 𝘁𝗲𝗮𝗺𝘀 𝗮𝗰𝗿𝗼𝘀𝘀 𝘁𝗵𝗲 𝗨𝗦, 𝗨𝗞, 𝗘𝘂𝗿𝗼𝗽𝗲, 𝗮𝗻𝗱 𝗨𝗔𝗘. 𝗞𝗲𝘆 𝗔𝗰𝗵𝗶𝗲𝘃𝗲𝗺𝗲𝗻𝘁𝘀 & 𝗜𝗺𝗽𝗮𝗰𝘁 (𝗡𝗼𝗱𝗲.𝗷𝘀 + 𝗔𝗪𝗦 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗲𝗱) - ⬇️ ➤Helped 50+ clients scale and optimize their Node.js backend systems on AWS ➤Supported 30+ organizations in AWS infrastructure, Node.js deployment, and system reliability ➤Improved Node.js backend performance on AWS, reducing data processing time by 40% ➤Built CI/CD pipelines for Node.js applications on AWS, reducing deployment time by 90% ➤Automated AWS-based backend deployments for Node.js services, reducing downtime by 40% ➤Designed high-availability AWS architectures for Node.js systems, achieving 99.99% uptime with disaster recovery strategies ➤Delivered scalable Node.js + AWS architectures supporting high-traffic production environments ➤Migrated 50+ applications to AWS cloud using Node.js backend architectures, reducing infrastructure costs by up to 30% ✅𝐒𝐞𝐧𝐢𝐨𝐫 𝐍𝐨𝐝𝐞.𝐣𝐬 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 & 𝐀𝐖𝐒 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫. I help startups and growing businesses build scalable, production-ready systems with full ownership from development to AWS deployment. ✅I specialize in 𝐍𝐨𝐝𝐞.𝐣𝐬 𝐛𝐚𝐜𝐤𝐞𝐧𝐝 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐮𝐬𝐢𝐧𝐠 𝐄𝐱𝐩𝐫𝐞𝐬𝐬.𝐣𝐬 𝐚𝐧𝐝 𝐍𝐞𝐬𝐭𝐉𝐒, building high-performance APIs, microservices, and scalable architectures. I also work with 𝐑𝐞𝐚𝐜𝐭, 𝐉𝐚𝐯𝐚𝐒𝐜𝐫𝐢𝐩𝐭, 𝐚𝐧𝐝 𝐓𝐲𝐩𝐞𝐒𝐜𝐫𝐢𝐩𝐭 to support full-stack development when needed. ✅On the cloud side, I design and deploy systems on 𝐀𝐖𝐒 𝐮𝐬𝐢𝐧𝐠 𝐄𝐂𝟐, 𝐒𝟑, 𝐑𝐃𝐒, 𝐃𝐲𝐧𝐚𝐦𝐨𝐃𝐁, 𝐋𝐚𝐦𝐛𝐝𝐚, 𝐀𝐏𝐈 𝐆𝐚𝐭𝐞𝐰𝐚𝐲, 𝐚𝐧𝐝 𝐂𝐥𝐨𝐮𝐝𝐅𝐫𝐨𝐧𝐭, building secure and scalable cloud-native and serverless applications. ✅I implement 𝐂𝐈/𝐂𝐃 𝐩𝐢𝐩𝐞𝐥𝐢𝐧𝐞𝐬 𝐚𝐧𝐝 𝐃𝐞𝐯𝐎𝐩𝐬 workflows using AWS tools, ensuring fast, reliable deployments and stable production systems. ✅𝐅𝐫𝐨𝐦 𝐌𝐕𝐏𝐬 𝐭𝐨 𝐞𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬, I handle the full lifecycle, architecture, development, deployment, and scaling, delivering high-performance backend systems built for real-world traffic. 𝙉𝙤𝙙𝙚.𝙟𝙨 𝘽𝙖𝙘𝙠𝙚𝙣𝙙 & 𝘼𝙒𝙎 𝘾𝙡𝙤𝙪𝙙 𝙎𝙚𝙧𝙫𝙞𝙘𝙚𝙨: ⬇️ → Node.js + NestJS backend architecture with AWS cloud infrastructure → Scalable Node.js + TypeScript backend systems deployed on AWS → High-performance Node.js APIs with React / Next.js integration → Node.js microservices using NestJS, TypeScript & AWS services → Production-ready Node.js + Next.js applications on AWS cloud → Secure Node.js backends with AWS IAM, built in TypeScript → Node.js API development with JavaScript / TypeScript on AWS → Node.js serverless backend development using AWS Lambda → Node.js applications with AWS S3 storage integration → Node.js backend scaling using AWS load balancing and auto scaling → Event-driven Node.js systems using AWS messaging services → Real-time Node.js backend systems hosted on AWS → Node.js database architecture using AWS RDS and DynamoDB → Node.js CI/CD pipelines with AWS deployment workflows → Node.js backend migration and modernization on AWS cloud → Node.js SaaS backend systems powered by AWS infrastructure → Node.js API Gateway setup with AWS integration → Node.js monitoring and logging using AWS CloudWatch → Node.js multi-tenant backend systems on AWS cloud → Node.js backend optimization for AWS cost and performance → Enterprise-grade Node.js backend systems deployed on AWS → Node.js backend security and authentication with AWS services → Node.js high-availability systems built on AWS architecture 𝗟𝗲𝘁’𝘀 𝘀𝗰𝗵𝗲𝗱𝘂𝗹𝗲 𝗮 𝗳𝗿𝗲𝗲 𝟯𝟬-𝗺𝗶𝗻𝘂𝘁𝗲 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻 𝘄𝗵𝗲𝗿𝗲 𝗜 𝗰𝗮𝗻 𝘄𝗮𝗹𝗸 𝘆𝗼𝘂 𝘁𝗵𝗿𝗼𝘂𝗴𝗵 𝗲𝘃𝗲𝗿𝘆𝘁𝗵𝗶𝗻𝗴 𝘀𝘁𝗲𝗽 𝗯𝘆 𝘀𝘁𝗲𝗽. Best, 𝐌𝐮𝐡𝐚𝐦𝐦𝐚𝐝 𝐌𝐚𝐧𝐬𝐨𝐨𝐫

Experienced DevOps Engineer, Backend Developer, and AWS Cloud Architect with 6+ years of hands-on experience building, automating, and operating production systems. Prior to my engineering career, I spent 3 years as an AWS Professional Services Consultant, helping enterprise customers design secure, scalable, and production-ready cloud environments. Today, I work across the entire software delivery lifecycle from application development to infrastructure, automation, deployment, and ongoing operations. I specialize in helping startups and growing businesses build reliable systems, streamline development workflows, optimize cloud costs, and accelerate product delivery. I have extensive experience designing and developing Backend applications, REST APIs, cloud-native architectures, AI-powered systems, and automated deployment pipelines. My approach combines strong software engineering practices with deep cloud and infrastructure expertise, allowing me to bridge the gap between development and operations while delivering solutions that are scalable, secure, and maintainable. Technical Expertise Backend Development • Python • Java • JavaScript Frameworks • Django • Flask • Spring Boot Databases • PostgreSQL • MySQL • MariaDB • DynamoDB • Redis API Development • RESTful APIs, • Integrations, • Microservices Architecture AWS & Cloud Technologies EC2, ECS, EKS, Lambda, S3, RDS, DynamoDB, VPC, IAM, CloudFront, Route 53, Step Functions, Glue, MWAA, CloudWatch Infrastructure as Code Terraform, CloudFormation, AWS CDK Containers & Orchestration Docker, ECS Fargate, EKS CI/CD & Automation GitHub Actions, GitLab CI/CD, Jenkins, AWS CodePipeline Monitoring & Observability CloudWatch, Grafana, Prometheus AI & Agent Engineering Claude, OpenAI, Gemini, AI-powered applications, agent workflows, workflow automation, Retrieval-Augmented Generation (RAG), prompt engineering, AI integrations, and AI-assisted software development workflows. Recent Project Highlights • Built a professional services automation platform using Django to streamline business operations and internal workflows. • Developed a custom inventory management system for a client, enabling efficient inventory tracking and operational management. • Designed and implemented REST APIs for a data analytics company, delivering scalable data services that helped clients make data-driven business decisions. • Reduced a client's AWS cloud spend from approximately $5,000/month to $1,500/month through infrastructure right-sizing, storage lifecycle optimization, and resource utilization analysis. • Migrated more than 30 services from EC2 to ECS Fargate while implementing automated CI/CD pipelines to improve deployment consistency and operational efficiency. • Transformed a single-account AWS environment into a secure multi-account architecture using AWS Control Tower, centralized governance, and IAM best practices. • Built large-scale data infrastructure leveraging AWS Glue, MWAA, Step Functions, and S3 to support automated ETL and analytics workloads. • Automated cloud infrastructure for development teams using Terraform, enabling fully version-controlled, repeatable infrastructure deployments. • Implemented blue/green and canary deployment strategies to reduce deployment risk and improve system reliability. • Created reusable CI/CD templates and DevOps tooling that improved developer productivity and standardized deployment practices across multiple organizations. • Designed and integrated AI-powered features and workflow automation using modern LLM platforms, helping teams automate repetitive tasks, improve productivity, and accelerate software delivery. AWS Certifications • AWS Certified Solutions Architect – Associate • AWS Certified Developer – Associate • AWS Certified Cloud Practitioner 𝐖𝐡𝐚𝐭 𝐈 𝐁𝐫𝐢𝐧𝐠 𝐭𝐨 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 Whether you need a backend engineer, DevOps specialist, AWS architect, or a technical partner who can own both the application and infrastructure layers, I can help turn ideas into reliable, production-ready systems. I focus on delivering scalable, secure, and cost-effective solutions while maintaining clear communication, strong engineering practices, and long-term maintainability. From building web applications and APIs to architecting AWS environments, automating deployments, implementing AI-powered workflows, and optimizing cloud infrastructure, I bring a practical, business-focused approach to solving technical challenges and delivering measurable results.

I'm a Certified MEAN I MERN Stack developer with experience in building high-quality websites. My experiences range from building responsive SPA, Softwares & websites that work well cross-browser to building scalable websites for the financial services industry. I like working on projects requiring user friendly and engaging interface. It's extremely important for me to build long term and sustainable relationships with clients and that’s why I am always focused on quality of work and timelines. My Skill summary: - Fullstack development with MEAN, MERN stack, Python, SPA, CRMs, ERPs, Desktop Applications - Node.js frameworks - Express, Sails, Hapi - Angular (starting AngularJS and up to Angular 7), NgRx, TypeScript, ES5,ES6 - WebPack, Bower, Gulp, Socket.IO, Restify, Jest - HTML5/CSS3, responsive UI - LESS/SCSS/SASS, Jade, Twitter Bootstrap - PHP/Laravel, Wordpress/WooCommerce - MySQL, PostgreSQL, Oracle DB, Mongo DB In addition to being flexible with my working hours, I would like to be able to work with any of your existing team or team members. Contact me to to feel a technological wow!

I am a certified AWS Developer with over 10 years of working experience with AWS Cloud, who specializes in server-less architectures such as ETL processes, serverless APIs, serverless websites. ETL processes: - various compute environments: from EMR, via Glue, Batch, to Lambda with focus to be config driven and as serverless as possible. - custom orchestration systems with Step Functions, Scheduled Events, On-demand, queueing and post processing - Python, PySpark, NodeJS (with Typescript) APIs: - as serverless as possible to reduce cost and development time, with ability to deploy whole API service as single Lambda function (NestJS, FastifyJS, ExpresJS, FastAPI, Flask) - Python, NodeJS (with Typescript) Serverless websites: - as serverless as possible for reports about system status, small intake forms, management tools, etc. - build whole websites with static generated content, server site rendering (NuxtJS), - Python, NodeJS (with Typescript) I prefer to use Serverless Framework as IaaC (infrastructure as a code) for deployment with a connection with GitHub Actions as a pipeline. Also, I have experience with and I am open to use other deployment tools such as: AWS CDK, SAM, Terraform, etc. I also have experience designing DynamoDB tables (one table design principle) and connecting them with Lambdas as data producers, and creating DynamoDB Streams with Lambdas as event processors (which could've been useful in your project). Let's talk about your project needs and use my 10 years of working experience with AWS. Tomasz

— TOP RATED PLUS Freelancer on UPWORK — EXPERT VETTED Freelancer (Among the Top 1% of Upwork Freelancers) — Full Stack Engineer — Data Engineer ✅ AWS Infrastructure, DevOps, AWS Architect, AWS Services (EC2, ECS, Fargate, S3, Lambda, DynamoDB, RDS, Elastic Beanstalk, AWS CDK, AWS Cloudformation etc.), Serverless application development, AWS Glue, AWS EMR Frontend Development: ✅ HTML, CSS, Bootstrap, Javascript, React, Angular Backend Development: ✅ JAVA, Spring Boot, Hibernate, JPA, Microservices, Express.js, Node.js Content Management: ✅ Wordpress, WIX, Squarespace Big Data: ✅ Apache Spark, ETL, Big data, MapReduce, Scala, HDFS, Hive, Apache NiFi Database: ✅ MySQL, Oracle, SQL Server, DynamoDB Build/Deploy: ✅ Maven, Gradle, Git, SVN, Jenkins, Quickbuild, Ansible, AWS Codepipeline, CircleCI As a highly skilled and experienced Lead Software Engineer, I bring a wealth of knowledge and expertise in the areas of Java, Spring, Spring Boot, Big Data, MapReduce, Spark, React, Graphics Design, Logo Design, Email Signatures, Flyers, Web Development (HTML, CSS, Bootstrap, JavaScript & frameworks, PHP, Laravel), responsive web page development, Wordpress and designing, and testing. With over 11 years of experience in the field, I have a deep understanding of Java, Spring Boot, and Microservices, as well as Java EE technologies such as JSP, JSF, Servlet, EJB, JMS, JDBC, and JPA. I am also well-versed in Spring technologies including MVC, IoC, security, boot, data, and transaction. I possess expertise in web services, including REST and SOAP, and am proficient in various web development frameworks such as WordPress, PHP, Laravel, and CodeIgniter. Additionally, I am highly skilled in Javascript, jQuery, ReactJs, AngularJs, Vue.Js, and Node. C#, ASP.NET MVC In the field of big data, I have experience working with MapReduce, Spark, Scala, HDFS, Hive, and Apache NiFi. I am also well-versed in cloud technologies such as PCF, Azure, and Docker. Furthermore, I am proficient in various databases including MySQL, SQL Server, MySql, and Oracle. I am familiar with different build tools such as Maven, Gradle, Git, SVN, Jenkins, Quickbuild, and Ansible.

Top 1%; part of the UpWork's Expert-Vetted program. ✅More than 100 completed projects on UpWork 🇺🇸Available for calls during business hours 🎓4 AWS Certifications: Professional Solutions Architect (result is 945 out of 1000), Professional DevOps Engineer (915), Machine Learning Specialty, Cloud Practitioner In short, the solutions I created are used by millions of users every day. I could build a web, mobile or desktop application using Serverless Computing, conforming to the principle of the least privilege under version control for each function (Pay-per-use AWS or Google Cloud infrastructure that scales indefinitely). When I code either the Frontend or Backend solutions, the experience I have defined the prioritization of the characteristics for the product: 1. Simplicity (readability). ---- all frontend services I create are event-driven with the FaaS infrastructure or in rare cases BaaS. ---- I write in strict TypeScript (if you don't know TypeScript, it is the same JavaScript plus type safety to increase stability). 2. Technical scalability ---- Comparing to containerized microservices, where parts are connected to each other, FaaS development allows to create completely independent functions. It is easier to manage and to make changes as you split the functionality into much smaller blocks. ---- FaaS can scale indefinitely, so any load the cloud provider (such as AWS) could handle is supported. -------- If you have 0 customers today, your bill is $0, comparing to microservices, where you have to have at least one container running $25/month. A typical project is eight containers. -------- If you have a billion customers tomorrow, FaaS auto scales horizontally to handle the new load automatically, with the pricing of an optimized solution close to $2-5/million requests for ALL infrastructure combined. 3. Size ---- The size of the bundled assets needs to be small as it affects the operating costs (you are charged by millisecond). ---- I have created tens of different custom Webpack solutions for all types of possible cases to minimize and optimize the bundles, including code splitting, tree shaking, finding the most appropriate target for the JavaScript (or TypeScript transpilation), image minification and lazy-loading (PNG, JPEG, SVG, etc), service workers, manifest, etc. -------- and even the updating process of the objects in a file hosting (such as AWS S3) to upload only those assets that have changed. -------- I have worked on many projects, every time trying to find something else to improve, so the solutions are extremely well optimized. 4. Performance ---- when I had projects to optimize for performance, I have created a lot of custom solutions as public solutions are for everyone and, therefore, typically suboptimal for a particular case. I create SPAs, conforming to PWA standards, and frontend plugins using React.js. I follow Component Driven Development (CDD) together with Visual Test Driven Development. For that, I use PlayWright and Storybook. When writing styles, I use CSS-in-JS (primarily using Emotion library). The Desktop app development involves also Electron, but the overall process is the same. That is the reason why it is easy to convert my solutions to distribute as a desktop app. When creating mobile apps, I use either React Native or create hybrid web-based solutions with Capacitor.js. 🔒Backend: I am a strong proponent of Serverless Computing, who has extensive experience with FaaS and BaaS, automatically generating IAM rules and cloud services, and conforming to the principle of the least privilege for each function/service. In regards to HTTP APIs, I create: - RESTful APIs covering them in tests and preparing for adoption by frontend devs via password-protected documentation over web endpoints where the frontend devs are able to observe and interact with Swagger UI that conforms to the OpenAPI 3.0 specification. - GraphQL. Created in all possible ways: custom with plain GraphQL library (no Apollo or other wrappers), with Apollo; in Programmatic and Declarative ways I automate provisioning of infrastructure (IaC) using AWS CDK and Google Deployment Manager configs, so that it takes one CLI command to create the defined as code cloud infrastructure. Project management/Tracking I am used to daily reporting and knowing that communication is the key, I constantly try to improve clients' experience. I know best methods in version control and I conform to them, doing PRs, releases, keeping multiple branches, and using stashes. ---- I have automated branching & PR requests, as well as connected bots for notifying about changes in corporate chats.The code I write goes through automatic code-styling processing that improves readability and overall quality of the provided work. I use: ESLint and Prettier for all automated code formatting needs. Respectfully, Olzhas