
Senior Frontend Engineer (PMP)
DidomiPosted 4/28/2025

Senior Frontend Engineer (PMP)
Didomi
Job Location
Job Summary
We are seeking a Senior Frontend Engineer to join our Engineering team in Paris, France. The ideal candidate will have 5+ years of experience with JavaScript and Typescript, as well as knowledge of React and modern front-end tooling. They will be responsible for driving the development of user-facing web applications, ensuring high performance, excellent user experience, and strong maintainability. Our team values a quality-oriented mindset, awareness of performance considerations, and a passion for simple, maintainable, and readable code. We offer flexible remote work options, $4,000/year travel stipends, and equity in a fast-growing company. As part of our distributed team, you will collaborate with passionate colleagues to create innovative AI solutions that make the world programmable.
Job Description
Responsibilities :
- Collaborate with designers and other developers to ship new features
- Be in charge of the overall architecture of web applications
- Ensure that we have the right tests and structure in place to make sure that we can move quickly without breaking everything
- Share your knowledge of software development principles and best practices with the team
- Keep learning new technologies and be on the look-out for new ideas that we should try out
Qualifications :
- At least 5 years of experience with solid knowledge of JavaScript and Typescript
- Experience with modern JavaScript and Typescript tooling and libraries
- Experience with front-end applications like React, or similar frameworks
- Quality-oriented mindset: testing, code reviews, code quality, etc.
- Awareness of performance considerations
- A passion for simple, maintainable, and readable code that balances pragmatism and performance
Bonus points :
- Experience with the micro-frontends architecture
- Experience with the micro-services architecture
- Experience with Custom Elements / Web Components
How do we build our products?
- For the frontend, we have adopted the micro-frontends architecture with single-spa for building our user interface. All SPAs we build get plugged into our shell. We also have an SDK built with Lit.
- For the backend, we have multiple services (APIs and Lambdas) written in Javascript and Typescript. We leverage PostgreSQL and DynamoDB as our main databases and manage our infrastructure with Terraform and Cloudformation. The principles of infrastructure-as-code are very important to us and we commit everything including KMS-encrypted secrets. Our most important services have 100% code coverage and we deploy our pipeline runners on GCP on a Kubernetes cluster.
- We process hundreds of millions of requests per day and are building our analytics platform on Kinesis Firehose, AWS S3, EMR jobs, and TimescaleDB to provide performant analytics for our clients. Internally we use Athena and Redash.
- We rely on a multitude of AWS services for building, deploying, serving, monitoring, and scaling our services. We use Gitlab for our code and CI/CD. To manage our issues we use Jira.
Our vision as a team :
- We are building a product and engineering team that is strongly committed to a high level of quality in our products and code. We believe that automation is the key to consistently achieving that along with velocity of development, joy and pride in what we deliver.
- At Didomi we are organized into feature teams and work in a Kanban approach. We do our best to avoid pointless meetings. The majority of the engineering team works remotely from all over the world, the only hard requirement is a 4-hour overlap with CET working hours.
- We rely on automated tests of all sorts (unit, integration, linters, you-name-it!) and continuous integration/delivery to build flexible applications that are able to evolve without breaking. We trust that it enables engineers to focus on the quality of their code and iterate fast without fears of breaking stuff. And when we break stuff, we fix it and learn from our mistakes.
Recruitment process :
- HR Interview (15 min)
- A technical interview with an Engineering Manager or the CTO
- A code challenge to build a simple API or a SPA. This is used as the basis of discussion for the next step. You can find our challenge on https://github.com/didomi/challenges/tree/master/frontend. We also accept suitable open-source projects in place of the challenge.
- A 1h code review session and architecture discussion with 2-3 Didomi engineers
- A set of 1:1 30-minute calls with the CTO, engineers, and a product manager