Principal Engineer Tech Leadership

@irsolutions

With over 10 years of experience in web and mobile development, specializing in tech leadership roles, I understand the importance of finding a Principal Engineer who can seamlessly integrate into your fast-moving technology product environment. Your requirements for a professional with expertise in Java/Spring, AWS cloud services, TypeScript, Node.js, Kotlin, and database management align perfectly with my skill set. In past projects, I have successfully led engineering teams, shaped clean bounded contexts, and ensured seamless alignment with larger system architectures. My hands-on approach with critical code paths, PR reviews, and performance troubleshooting has consistently delivered robust solutions while writing production-ready code. With a proven track record in surviving audits, scaling, and change management, I am confident in my ability to drive success in your project. If you are looking for a confident and experienced Principal Engineer who can hit the ground running and add value from day one, I am eager to collaborate with you. Let's work together to achieve your project goals and drive innovation within your technical team.

@tangramua

Dear ,   We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time.   We are 25 years in this business and our technical specialists have strong experience in Java, Linux, MySQL, Amazon Web Services, Node.js, PostgreSQL, Typescript, Kotlin, Java Spring, REST API and other technologies relevant to your project.   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, Sales department Tangram Canada Inc.     

@royalwebraisers

Dear Hiring Manager, With over 10 years of experience delivering large-scale, audit-ready systems using Java/Spring, AWS, Node.js/TypeScript, and Kotlin with PostgreSQL/MySQL, I bring strong hands-on leadership combined with sound architectural judgment. I will share my portfolio on your first message. Implementation Approach: • Lead from the front by contributing to critical Java/Spring services, PR reviews, and performance troubleshooting • Design and evolve REST/GraphQL APIs, workflow engines, and data models aligned with AWS-based architecture • Mentor engineers, define clean bounded contexts, and enforce high-quality coding standards • Partner closely with the System Architecture Engineer to ensure scalability, security, and change management • Implement monitoring, CI/CD, and performance tuning for production-grade reliability Queries: • What are the current system bottlenecks or high-risk components? • How large is the engineering team I will work with? • Are there established CI/CD and cloud governance standards in place? I will be waiting for your response. Kindest Regards,

@jayprakashyadav

As a Principal Engineer with 15+ years of experience, I bring deep technical expertise along with hands-on leadership across a wide range of technologies, including MySQL, Node.js, React.js, WordPress, Joomla, and modern cloud-based systems. I recently led projects integrating OpenAI APIs for automated content and media workflows, reflecting my ability to adopt and apply emerging technologies effectively. I have designed and delivered systems ranging from simple applications to large-scale eCommerce and membership platforms, giving me the adaptability required for complex environments involving Java/Spring, TypeScript, Kotlin, and AWS services. I remain actively involved in coding while providing strong technical leadership, ensuring alignment between engineering teams, management, and audit requirements. With proven experience driving long-term, mission-critical projects, I’m confident in delivering this engagement on time while maintaining high standards of scalability, performance, and reliability. Thanks, Jay

@SBITServices

Hi Ros, I am an experienced Principal Engineer ready to take on the hands-on leadership role in your fast-moving technology product environment. With over 10 years of experience in Java/Spring, AWS, TypeScript, Node.js, and Kotlin, I will drive technical direction, mentor engineers, and ensure system architecture alignment. Let's discuss further. Regards, Sai Bhaskar

@chesslover

Hello there, thank you for reviewing my proposal. I'm applying as a Senior Java Developer, not as a Tech Lead. I have been a Tech Lead for many years and right now I would like to go back to being a senior developer. I'm Valentino and I have over 20 years experience with Java and JVM-based languages (Scala, Kotlin, Groovy) focusing the last eight (8) years on cloud microservices and serverless architectures with Docker + Kubernetes. I'm an individual / independent, full-time freelancer from the Philippines (time zone UTC+08:00). I have over 10 years experience with Spring Boot and Spring Boot-based frameworks: - JHipster / KHipster (Kotlin Spring Boot) - Apache Grails (Groovy) - Jmix Framework Another 10 years experience with Java EE / Jakarta EE and related frameworks: - Quarkus - Micronaut - Eclipse Vert.x - Oracle Helidon For reference please see some of my projects here in Freelancer: Java / Spring: https://www.freelancer.com/projects/java/Build-java-based-user-interface Scala: https://www.freelancer.com/projects/chatgpt-ai-integration/Scala-Engineer-for-Functional Kotlin: https://www.freelancer.com/projects/javascript/Convert-HTML-kotlinx Groovy: https://www.freelancer.com/projects/software-architecture/Part-time-Java-Groovy-developer Since 2017 I have also been using modern ES6+ JavaScript / TypeScript frameworks such as Angular, React, and Vue. My cloud platforms are AWS, GCP, Microsoft Azure, and Heroku. Best regards, Valentino

@softwarelinkerrs

With over a decade of experience and the backing of a team that has successfully served clients in diverse industries including Education, Finance, Logistics, and Corporate platforms, SoftwareLinkers is well-positioned to handle your Principal Engineer Tech Leadership role skillfully. Our proven track record in designing, deploying, and maintaining scalable digital systems makes us the perfect fit for your project. Further, our solid understanding of your primary tech stack- Java/Spring in large-scale systems supported by AWS, TypeScript/NodeJS focusing on REST/GraphQL APIs, and familiarity with either PostgreSQL or MySQL in the data layer- reinforces our credibility. What sets us apart is our ability to constantly adapt and thrive in fast-moving product environments. Our approach to any project begins with identifying the unique needs and goals of our clients' businesses and designing solutions that meet those objectives. As a Principal Engineer, I will take ownership of the technical direction while staying significantly involved in the nitty-gritties of code. I will not only provide clear technical leadership to your team but also mentor and unblock engineers. Moreover, having survived audits, scaling challenges, and change management on projects for over 7 years, we understand the importance of robust solutions when writing production-ready code. .

@agilifytechllc

Hi Ros N., I recently completed a similar project. I am a hands-on Principal Engineer with 10+ years of experience building and scaling backend systems. I work directly in code and have led Java/Spring, Kotlin, and Node.js systems on AWS, with strong experience in databases, audits, and production scaling. I help teams by setting clear architecture, improving APIs and workflows, and quickly unblocking engineers while keeping systems stable and easy to maintain. My approach: --> Review architecture, risks, and system goals --> Define clear APIs and coding standards --> Improve performance, reliability, and monitoring --> Strengthen data consistency and migrations --> Support smooth delivery with safe deployments and team mentoring --> I focus on making systems reliable, scalable, and easy to change. I will focus on your requirements. I worked on similar projects and can share upon request. Let’s discuss timeline and budget based on these details via chat. Regards, Atta

@GyanaMishra99

Professional java developer with 12 years of industry experience. Well versed in springboot based microservice application along with kafka and cloud. Feel free to connect.

@elhadfi

I am an individual Principal Engineer with 10+ years of hands-on experience designing, scaling, and maintaining production systems built on Java/Spring, AWS, and modern cloud-native architectures. I have led teams while remaining deeply involved in critical code paths, API design, performance tuning, and architectural decision-making. My background includes systems that have passed audits, scaled under real load, and evolved through long-term change management. I work closely with architects and engineers to define clear bounded contexts, mentor teams, and deliver resilient solutions. I am comfortable with interviews, reference checks, and stepping in quickly to add value.

@mykhaylob4

✋ Hi, there. I can step into a senior Principal Engineer role and lead hands-on delivery for large Java and AWS based systems. ✔️ I have over ten years of experience building and leading production systems with Java, Spring Boot, AWS, Kotlin, PostgreSQL, and MySQL, while working closely with TypeScript and Node.js services. In a recent role, I led a core platform that passed security audits, scaled under load, and evolved through major architecture changes while staying live. ✔️ I stay close to the code and lead by example through PR reviews, performance fixes, and design decisions. I have mentored senior and mid-level engineers, set clear service boundaries, and aligned APIs and workflow engines with long-term system goals. ✔️ My approach is to understand the current architecture fast, partner with the System Architecture Engineer, and take ownership of technical direction. I design REST and GraphQL APIs, guide data models, plan migrations, and keep delivery moving without losing code quality. ✔️ I am an individual contributor, comfortable with interviews, references, and direct accountability, and I can start within two weeks. Let’s chat and see if this is the right fit. Best regards, Mykhaylo

@AmazingEngr76386

With a decade of hands-on experience in the tech industry and a comprehensive understanding of the project's tech stack, I'm confident in my ability to not only meet but exceed your expectations for this Principal Engineer role. My proficiency extends from Amazon Web Services, Java, Kotlin, Linux, MySQL, Node.js, PostgreSQL all the way to REST API design. I have successfully led teams and delivered large-scale systems that involved these technologies; some of which have gone on to survive audits, scaling, and change management for over 7 years. A major focus of mine is on combining leadership skills with staying close to the code. This means I will not only provide you with a clear technical vision and lead your engineering team by example but also remain hands-on throughout the process—mentoring engineers, performing code reviews and troubleshooting performance issues. In choosing me for this role you will benefit from my long-term approach to projects. I prioritize creating architectures that are clean, modular and scalable rather than just short-term firefighting. That means that as Principal Engineer I will ensure each new component aligns seamlessly with the larger system architecture while providing well-reasoned input into system boundaries, data models and migration strategies. Let me bring my passion for delivering robust solutions while writing production-ready code to bear on your project today.

@GameOfWords

Principal Engineer Tech Leadership I’m a full-stack software engineer with expertise in React, Node.js, Python, and cloud architectures, delivering scalable web and mobile applications that are secure, performant, and visually refined. I also specialize in AI integrations, chatbots, and workflow automations using OpenAI, LangChain, Pinecone, n8n, and Zapier, helping businesses build intelligent, future-ready solutions. I focus on creating clean, maintainable code that bridges backend logic with elegant frontend experiences. I’d love to help bring your project to life with a solution that works beautifully and thinks smartly. To review my samples and achievements, please visit:https://www.freelancer.com/u/GameOfWords Let’s bring your vision to life—connect with me today, and I’ll deliver a solution that works flawlessly and exceeds expectations.

@KarthikTechCon

Hi, I’m Karthik, an individual Principal Engineer (not an agency) with 10+ years of hands-on leadership experience, and I’m comfortable stepping straight into a senior, code-close leadership role in fast-moving product teams. My background includes shipping and operating large-scale systems with Java/Spring at the core, AWS across compute, messaging, and observability, TypeScript/Node.js at the edge, and Kotlin with PostgreSQL/MySQL in the data layer. I’ve led systems that have survived audits, scale, and long-term change management (7+ years). How I add value immediately: Own technical direction while staying hands-on (critical paths, PR reviews, perf issues) Shape clean bounded contexts, APIs (REST/GraphQL), and workflow engines Mentor engineers, unblock delivery, and raise code quality through example Make pragmatic decisions on data models, migrations, and system boundaries Partner closely with the System Architecture Engineer to keep alignment tight I’m comfortable with Teams interviews, reference checks, and starting within two weeks. I communicate clearly, document decisions, and balance robustness with delivery. Happy to discuss relevant references and availability. — Karthik (Principal Engineer, 10+ yrs)

@mughiraaa

Hello, I have reviewed the details of your project. i will step into this role ready to take ownership from day one while staying close to the code. i will work side by side with the system architecture engineer to confirm service boundaries and data flow before touching new features. the core services will be developed in java using spring with clear domain separation and clean interfaces. i will review existing aws usage across ecs rds iam and cloudwatch to ensure services scale safely and remain observable. api work will focus on rest and graphql endpoints with strong typing and clear contracts shared with the typescript and node.js edge services. data work will use postgresql or mysql with careful schema evolution migration scripts and rollback plans. i will stay active in pull requests performance reviews and production issue analysis to unblock engineers fast. Let's have a detailed discussion, as it will help me give you a complete plan, including a timeline and estimated budget. I will share my portfolio in chat I look forward to hear from you. Thanks Best Regards, Mughira

@prasantaghorui

Hello, I am submitting my application as an individual contractor (not an agency) for the Principal Engineer role described. I understand and fully accept the requirements for a Teams interview, verified references, and the expectation of long-term continuity, ownership, and senior hands-on leadership throughout the engagement. I bring 10+ years of professional software engineering experience, backed by a degree in Computer Science / Software Engineering, and a strong track record of delivering large-scale, production systems that have successfully navigated audit, scaling, and change management over many years.

@MIndlabsAi6

Hello Ros, I am Vishal Maharaj, a seasoned professional with 20 years of expertise in MySQL, Amazon Web Services, PostgreSQL, Typescript, REST API, Linux, and Node.js. I have carefully reviewed your project requirements and am confident in my ability to deliver exceptional results. For the Principal Engineer Tech Leadership role, I propose to take full ownership of the technical direction, mentor and unblock engineers, and ensure alignment with the larger system architecture. I will lead the engineering team by example, remain hands-on with critical code paths, design and document REST/GraphQL APIs, and provide valuable input into system boundaries and data models. I am excited about the opportunity to collaborate on this project. Please initiate a chat so we can discuss further. Cheers, Vishal Maharaj

@jignesh06

Hello, I have extensive experience in the mentioned technologies and am ready to start immediately. Let’s connect via chat to discuss the project requirements further. Thank you, Jignesh

@adily1

Hi There, I understand you are seeking a seasoned Principal Engineer to lead and inspire your engineering team while maintaining close involvement with the code. With over 6 years of extensive experience in Java, AWS, and REST API development, I am well-equipped to deliver robust, production-ready solutions to meet your project needs. My background in software engineering includes shipping large-scale systems, mentoring teams, and shaping clean technical visions. I have significant expertise in Java/Spring, TypeScript, Node.js, Kotlin, and both PostgreSQL and MySQL, empowering me to take ownership of the technical direction. You can view my work and projects here: https://www.freelancer.com/u/adily1 I am excited about the opportunity to collaborate with your team and drive impactful solutions. Thank you, Adil Yousuf