# Damian Joniec

> Software Engineer at Aviva | Expertise at TypeScript, ReactJS, ReduxJS, SQL | AWS Certified

Location: London, England, United Kingdom
Profile: https://flows.cv/damianjoniec

I'm Damian Joniec, a London-based software engineer specializing in creating dynamic web applications. With a deep understanding of HTML, CSS, JavaScript, React, Redux, and GraphQL, I focus on delivering high-quality software solutions. My backend skills include Node.js, Nest.js and Express.js, and I'm proficient in cloud computing as an AWS Certified professional.

I'm passionate about developing efficient, clean code and staying at the forefront of technological advancements. My expertise in GraphQL and TypeScript has been integral in numerous projects.

Key Achievements:
Enhanced user engagement by optimizing the frontend architecture and implementing advanced React features.
Successfully migrated a legacy system to React, leading to a 30% improvement in application speed and a 25% reduction in server load.
As a project lead, boosted team productivity through the introduction of Agile methodologies and CI/CD practices.

Skills:
Frontend: JavaScript, React, Redux, Next.js, TypeScript, CSS.
Backend: Node.js, Express.js, Apollo Server.
DevOps & Source Control: AWS, Git, CI/CD.
Interests:
Actively participating in tech meetups and conferences like SB TechEx and IBM Code London. I'm also keen on Agile methodologies and continuous learning in tech.

For collaboration or to discuss the latest in web development, email me at damianjnc@gmail.com

## Work Experience
### Full Stack Engineer @ Aviva
Jan 2025 – Present | Greater London, England, United Kingdom

### Software Engineer | CL9-Team Lead/Consultant | TypeScript, React, AWS @ Accenture
Jan 2021 – Jan 2025 | London, England, United Kingdom
Led frontend development of insurance software that optimizes and automates specialty insurance underwriting processes by leveraging React, NextJS, TypeScript, AWS, Docker. Created user-friendly interfaces and provided an engaging UX across multiple devices.

### Software Engineer @ Convex Insurance
Jan 2020 – Jan 2025 | London, England, United Kingdom

### Software Engineer @ INFINITY WORKS CONSULTING LIMITED
Jan 2020 – Jan 2021 | London, England, United Kingdom

### Frontend Engineer | Javascript, TypeScript, React, AWS @ iPlato Healthcare
Jan 2019 – Jan 2020 | London, United Kingdom
•	Enhancing accessible, responsive, and functional user interfaces for the medical app. Using tools such as React, Jest, and Redux, integrated accessibility best practices and implemented rigorous testing strategies; employed optimization techniques such as lazy loading, memoization, skeleton loading, and tree shaking to further boost performance.
•	Managed global state using Context API and React Hooks, simplified state management and reduced reliance on external libraries by transitioning from Redux to the React Hooks + Reducer + Context pattern.
•	Significantly improved application performance by implementing the Backend for Frontend (BFF) pattern. Integrated a GraphQL API with Apollo Client on the frontend and deployed NodeJS with Apollo Server on the backend. This approach provided a dedicated GraphQL backend for each user interface, which prepared and transformed data specifically for those interfaces. Leveraged GraphQL to enable the frontend to request exactly the needed data, thereby eliminating unnecessary network overhead and enhancing overall responsiveness

### Frontend Engineer | Javascript, AWS @ IMPLE
Jan 2014 – Jan 2018 | Gdańsk, Pomorskie, Poland
• Implemented and mastered a range of technologies including HTML, CSS, JavaScript (ES5/ES6), React JS, AngularJS, MongoDB, PostgressDB, Node.js, AWS S3, and CSS Grid, while also integrating A/B testing, Google Analytics, SEO, and SEM, to develop robust applications and effective marketing tools.
• Designed and executed a viral marketing tool using JavaScript and jQuery in an MVC pattern, resulting in a 40% increase in user engagement. Furthermore, engineered a content management system (CMS) for landing pages and one-time offers using Angular, which contributed to a 25% rise in targeted lead conversion and incentivized immediate customer actions, significantly enhancing marketing efficiency


## Education
### Bachelor's degree in Information Systems
University of Maine

### The Complete JavaScript Course in Javascript
Udemy

### Smart Contract Programming
IvanOnTech Academy


## Contact & Social
- LinkedIn: https://linkedin.com/in/damianjnc

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Source: https://flows.cv/damianjoniec
JSON Resume: https://flows.cv/damianjoniec/resume.json
Last updated: 2026-04-05