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Support-oriented Engineer that loves to learn new things, solve problems, and craft code. Specialist at bug-hunting, RCA, and code archaeology. Wearer of multiple hats, and comfortable in teams big, small, and remote.

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FullStack Software Engineer II April 2019 – March 2024 Jack Henry and Associates (Monett, MO) • Main Stack: Javascript/Ruby on Rails/React/AWS EC2+RDS+Lambda/Scala/Python/Docker/Kubernetes • Developed backend APIs to integrate our React frontend and Rails middleware with services like Twilio, AWS S3/Lambda, and our in-house Scala microservices. • Improved reporting accuracy and turnaround time by utilizing Rake scripts and MySQL workflows; used Python (Pandas) for data analysis, and reduced the amount of time to run cleanup tasks by 40%. • Boosted system uptime 40% by implementing and maintaining monitoring tools (NewRelic, Datadog, Sentry) and automatic ticket generation with Jira to streamline bug-reporting process. • Reduced deployment time by 25% by creating internal Capistrano scripts, custom Ruby and SQL scripts/queries, and leading automation processes that allowed these tasks to be repeatable. • Bridged informational gaps between Database, Support, and Infrastructure teams, enabling faster resolution of cross-team issues by 65%. • Led migration from EC2 + Puppet to Docker + Kubernetes, increasing scalability by 30%, and simplifying infrastructure management and reducing deployment schedules from weekly rotations to any-time. • Led a collaborative effort with the DBA team to identify and resolve issues with duplicate entries, personally identifiable/sensitive information, and cleanup tasks. • Developed custom SQL scripts and Ruby-based tools to automate deduplication, reducing manual table maintenance time by 80%. • Learned advanced data handling techniques on the fly, demonstrating adaptability and problem-solving under tight deadlines. Front-End Software Engineer March 2014 – April 2019 Geezeo (Glastonbury, CT) • Main Stack: Javascript/CSS/Angular/Webpack • Migrated legacy Angular views to a standalone Webpack package, improving modularity and reducing build times by 30%. • Built and deployed a production-ready Angular application, evolving it from a non-functional proof-of-concept to a fully featured product with wide client adoption that led to a wide adoption by our entire client base of 500+. • Developed frontend APIs and integrated them with in-house backend services, ensuring seamless data interactions. • Used SASS and to implement theming and white-labeling features, enabling customization for diverse client needs. • Managed continuous deployments with Node.js and Webpack, automating bundle builds and deployments to AWS S3. • Decoupled frontend Angular applications that were embedded into our Rails middleware into their own standalone applications. Increased turnaround time for enhancements and bug fixes by 100% and enabled highly rapid iterations to proceed on the project with instant deployment capability.

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Principal Engineer building scalable Ruby on Rails web applications since 2006

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Senior Software Engineer – Technical Leader – Principal Engineer As a Senior Software Engineer with 16+ years of experience in Ruby on Rails web development and scaling, I bring a wealth of technical expertise to the table. My hands-on and collaborative leadership style has proven effective in managing projects and teams for more than 12 years. I have a strong track record in fast-paced startups, working closely with the CTO and across multiple R&D teams. Self-driven and responsible, I excel at taking ownership of the technical vision and roadmap. I am experienced in working autonomously, with full accountability for complex projects and applications. My focus is on building reliable, future-proof systems, and I have experience maintaining complex applications in regulated environments with high requirements for data security and reliability. I bring a passion for innovation and problem-solving to early startups, helping them grow by introducing practical solutions and structure. I am able to adapt to change and make informed technology investments that align with company goals. I follow agile methodologies and value collaboration. I view planning and whiteboarding sessions as opportunities to share knowledge and build trust with the team through honest retrospectives in a safe environment. In addition to my technical skills, I have a passion for mentorship and enjoy coaching and training junior developers. I am active in the Ruby community, a maintainer of open source projects, and a top contributor on Stack Overflow with over 2,000 answered Ruby and Rails questions.

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CTO, Senior Full Stack Dev | RoR and Js/Typescript Expert | Remote

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Senior software engineer with over 10 years of experience as a remote freelancer. My educational background includes an MSc 2:1 in computer science and applied mathematics engineering from ENSEEIHT (Toulouse, France) in 2009. I then worked for 2 years as a frontend developer at a startup in London and transitioned to backend work in 2013. Specializing in web application development, I have undertaken projects for companies such as Carrefour, L'Oréal, Cocolis, Epicery, and Alerti. My work has encompassed backend development, data engineering, code and database performance improvement, e-commerce platform customization and logistics, payment system integration, API creation, crawlers, technical documentation, and testing. Passionate about data manipulation and rendering them to users and stakeholders in a more meaningful way, I am currently expanding my skills in AI/ML and neural networks through CNRS fidle formation to explore how I could apply and offer these services to my clients. Recent milestones and accomplishments include: Migrating the payment system from Adyen to Stripe for Epicery Migrating the frontend from Vue to Hotwire for Epicery Developing a geolocalized matching algorithm between carriers and packages for Cocolis Fields of expertise: E-commerce solutions with Solidus/Spree open-source framework Data processing and visualization with Business Intelligence tools for reporting Integration of payment system providers Integration of third-party APIs Database design and performance optimization Frontend performance optimization Crawling and scraping Technical audits Testing, documentation, CI/CD tools Experience with the following tools: Languages: Ruby, Typescript, JavaScript, Node.js, Ruby on Rails Platforms: AWS, Google Cloud Platform, Render, Heroku Frontend: React, Vue.js, Hotwire, Angular, HTML/CSS, Alpine.js, HTMX, Astro Payment providers: Stripe, Mangopay, Adyen, PayPal Data viz: Amazon QuickSight, Superset, Tableau Backend tools: Solidus open-source e-commerce solution, New Relic, Elasticsearch, PostgreSQL, Amazon S3, etc. CI/CD Tools: GitHub CI, CircleCI Fluent in French, English, Spanish.

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Experienced Ruby on Rails backend developer | 8+ Years of experience | Strong proficiency in AWS | React, ReactNative, API (REST & GraphQL) | Effective communicator and team player

My name is Sarbada Nanda Jaiswal, and I am a senior Ruby on Rails backend developer with over 8 years of experience. I have been working in the software development industry since 2014, and during this time, I have honed my skills and expertise in building robust and scalable web applications. My proficiency extends beyond Ruby on Rails, as I am also proficient in other technologies such as React JS, AWS, DigitalOcean, HTML, CSS, SCSS, JavaScript, CoffeeScript, jQuery, Bootstrap, and Flutter. This diverse skill set allows me to adapt to various projects and contribute effectively across different areas of development. Throughout my career, I have worked on a wide range of projects, collaborating closely with clients to understand their business requirements and deliver tailored solutions. I am skilled in breaking down complex requirements into manageable user stories and estimating project timelines and resources accurately. One of my strengths is my ability to follow Test-Driven Development (TDD) methodologies, ensuring that the software I develop is of the highest quality and meets the client's expectations. I am dedicated to writing clean, maintainable code and have experience with version control systems like Git. In addition to my technical skills, I have experience working with various cloud services such as Amazon Web Services (AWS), Heroku, and DigitalOcean. I have deployed applications on these platforms, ensuring their stability and scalability. Throughout my career, I have taken on leadership roles, serving as a Team Lead and providing guidance and mentorship to junior developers. I have also had the opportunity to work collaboratively in cross-functional teams and effectively communicate with clients, stakeholders, and colleagues. I am constantly seeking opportunities to expand my knowledge and stay up-to-date with the latest industry trends. I am passionate about learning new technologies and applying them to solve complex problems. My goal is to continuously improve my skills and deliver innovative solutions that drive success for the organizations I work with. Outside of work, I have been involved in extracurricular activities such as being a member of the Robotics Club during my time at Lumbini Engineering Management & Science College. I also have one year of teaching experience in computer subjects for secondary-level students. Overall, I am a dedicated, adaptable, and proactive professional with a strong work ethic. I am excited about the opportunity to contribute my expertise to new challenges and make a positive impact in the field of software development. I hope this gives you a better understanding of who I am both professionally and personally.

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