Harsh Lakhara — Full Stack Engineer

I'm a Software Engineer with over 3 years of experience designing and building scalable, secure, and high-performance systems—primarily focused on backend development using Java, Spring Boot, and Node.js. Currently, I work at Thoughtworks as a Developer – Consultant, where I help clients solve complex business problems through clean architecture, agile delivery, and modern engineering practices. My work spans everything from backend service design to system performance optimization, with a sharp focus on delivering production-ready solutions that scale. Previously at Signdesk, I engineered solutions that drove real business impact: Cut PDF load times by 99% through client-side rendering innovations. Migrated legacy modules to a micro frontends architecture, reducing dev timelines by 30%. Built a secure web framework with JWT, RSA, and AES, cutting vulnerabilities by 80%. Developed an SDK that automated HTML template generation, reducing creation time by 300% and eliminating outsourcing costs. I’m passionate about solving real-world engineering challenges through thoughtful system design and efficient code. I thrive in environments where performance, security, and scalability matter—and where teams value clean, maintainable code. ✅ Strengths: Backend Architecture · Secure Systems · Performance Optimization · API Design · Agile Consulting 🛠️ Tech: Java · Spring Boot · Node.js · React · Angular · MongoDB · SQL · TypeScript If you're working on meaningful problems and need someone who can build resilient backend systems while keeping business outcomes in focus—let’s connect. 📩 harshlakhara007@gmail.com

Stackforce AI infers this person is a Backend-focused Software Engineer with expertise in SaaS and secure system design.

Location: Bengaluru, Karnataka, India

Experience: 4 yrs 4 mos

Skills

Backend Architecture
Api Design
Performance Optimization
Secure Systems
Scalability
Full-stack Development

Career Highlights

Engineered solutions that cut PDF load times by 99%.
Built secure frameworks reducing vulnerabilities by 80%.
Developed SDK that automated HTML template generation.

Work Experience

Thoughtworks

Developer (1 yr 3 mos)

SignDesk

Associate Software Engineer | Angular Go Node.js MongoDb Javascript (2 yrs 5 mos)

JSpiders - Training & Development Center

Full Stack Java Software Development Trainee | Core Java, J2EE, Hibernate, Spring boot, React (8 mos)

Education

Master of Technology - MTech at BITS Pilani Work Integrated Learning Programmes

Bachelor of Engineering (B.E.) at A. D. Patel Institute Of Technology, Karamsad 001

High School Diploma at Shri Swaminarayan Vidyalaya

Harsh Lakhara

Full Stack Engineer

Bengaluru, Karnataka, India4 yrs 4 mos experience

AI EnabledAI ML Practitioner

Key Highlights

Engineered solutions that cut PDF load times by 99%.
Built secure frameworks reducing vulnerabilities by 80%.
Developed SDK that automated HTML template generation.

Stackforce AI infers this person is a Backend-focused Software Engineer with expertise in SaaS and secure system design.

Contact

Skills

Core Skills

Backend ArchitectureApi DesignPerformance OptimizationSecure SystemsScalabilityFull-stack Development

Other Skills

AESAPI DevelopmentAWS LambdaAdobe IllustratorAdobe PhotoshopAdobe Premiere ProAgile DevelopmentAgile MethodologiesAlgorithmsAmazon Web Services (AWS)AngularAngular CLIApplication Programming Interfaces (API)Artificial Intelligence (AI)Artificial Intelligence for Business

About

Experience

Thoughtworks

Developer

Dec 2024 – Present · 1 yr 3 mos · Bengaluru, Karnataka, India · On-site

Delivered scalable, maintainable solutions for complex client problems by leveraging modern engineering practices such as TDD, CI/CD, and evolutionary architecture—ensuring high code quality and continuous delivery without regression.
Reduced feature delivery timelines by up to 40% by driving clean architecture principles, facilitating better separation of concerns, and enabling parallel development across teams.
Led backend implementation efforts in fast-paced agile environments, contributing to the design and delivery of microservices and API-driven systems using Java, Spring Boot, and Node.js, resulting in improved system modularity and maintainability.
Improved system reliability and performance by identifying and resolving bottlenecks in backend services, decreasing average response times by 30% and increasing throughput during high-traffic usage.
Influenced strategic technical decisions by actively participating in architectural reviews, spike solutions, and cross-functional discussions—ensuring alignment between technical execution and client business goals.
Enabled rapid scaling of developer onboarding through automation scripts, onboarding documentation, and code walkthroughs, cutting ramp-up time for new engineers by over 50%.
Built trust with stakeholders and cross-functional teams by consistently delivering high-impact features on time, communicating trade-offs clearly, and ensuring technical feasibility aligned with business constraints.

JavaSpring BootNode.jsMicroservicesAPI DevelopmentAgile Methodologies+3

Signdesk

Associate Software Engineer | Angular Go Node.js MongoDb Javascript

Jun 2022 – Nov 2024 · 2 yrs 5 mos · Bengaluru, Karnataka, India · On-site

Streamlined developer workflows by engineering custom frontend frameworks that increased code reusability, reducing the codebase by ~1,000 lines monthly and enabling developers to focus on feature innovation over boilerplate repetition.
Cut document load time by over 99% by implementing client-side PDF rendering using Web Workers and dynamic resource allocation, significantly improving user experience and system responsiveness.
Improved scalability and development velocity by converting legacy modules into a micro frontends architecture, shortening development timelines by 30% and improving modularity for cross-team collaboration.
Built a secure web application framework with JWT-based authentication, RSA key exchange, and AES encryption, resulting in an 80% reduction in security vulnerabilities and laying the groundwork for secure multi-tenant SaaS deployments.
Reduced template generation time by 300% by designing an SDK that automated HTML-to-PDF conversions from DOCX templates, eliminating the need for external services and slashing outsourcing costs.
Accelerated onboarding for digital signature templates by 90% through a custom-built document templating system, dramatically cutting implementation times for clients.
Collaborated across product, QA, and DevOps teams to deliver production-grade releases in high-compliance environments, ensuring reliability, auditability, and customer satisfaction.

AngularNode.jsMongoDBJavaScriptMicro frontendsJWT+3

Jspiders - training & development center

Full Stack Java Software Development Trainee | Core Java, J2EE, Hibernate, Spring boot, React

Oct 2021 – Jun 2022 · 8 mos · Bangalore Urban, Karnataka, India · On-site

During my software development training, I developed practical skills and gained a deep understanding of how various technologies integrate to create efficient, scalable solutions. I built a solid foundation in Core Java, J2EE, Hibernate, Spring Boot, and object-oriented programming (OOP), allowing me to comprehend the intricacies of constructing robust backend systems.
Through hands-on experience with SQL, I learned to structure and optimize databases, acquiring insights into effective data management and retrieval. My work with JavaScript, HTML, and CSS enhanced my front-end abilities, helping me recognize the importance of functionality and user experience in web development.
In my exploration of React, I mastered the component-based architecture, which equipped me to create dynamic, high-performance applications. I delved into data structures, understanding how to apply them to address complex problems effectively.
Throughout the course, I consistently ranked among the top performers in all assessments, showcasing my ability to grasp material quickly and apply it proficiently. This practical experience, combined with a focus on the principles behind each technology, provided me with a comprehensive understanding of system architecture from backend to frontend, ensuring I can build efficient, maintainable, and scalable software solutions.

Core JavaJ2EEHibernateSpring BootReactBackend Architecture+1