Job VC
Front-End Team Lead (Ohayu at Genesis)
Technologies
Description
Hello.
We are looking for a
Front-End Team Lead
to join Ohayu (https://ohayu.com). We are building the easiest way for travelers to stay online anywhere in the world.
We’re a fast-scaling B2C mobile + web app (iOS/Android/Web) that lets people buy eSIM data plans in minutes
- cheaper than roaming, no SIM shops, no hassle. Thousands of travelers already use Ohayu worldwide, and we’re just getting started.
Our ambition is bigger than eSIM: we’re evolving Ohayu into a full Travel App that makes every journey smoother.
What you’ll do:
This role is for someone who wants
real ownership
and
real product impact.
Take
full ownership of the frontend architecture and scalability
, designing a
target architecture to migrate our Preact SPA to Next.js SSR
Optimize website performance
ensuring the fastest load times for users around the world
Design and implement a
robust caching strategy
to support global performance at scale
Add multiple languages
to our platform
Collaborate closely with the design team to translate Figma designs into high-quality,
responsive user interfaces and A/B tests
Improve observability and error handling
across the frontend stack
Refine and implement proper CI/CD pipelines
to streamline our development and deployment workflow
Mentor, support and lead other frontend developers
, conducting code reviews and sharing knowledge
What we’re looking for:
7+ years of JavaScript experience
4+ years of React experience
4+ years of Next.js experience (ideally with hands-on work with App Router or Pages Router)
3+ years of TypeScript experience
Proven experience with migration projects - ideally having led or played a key role in SPA to SSR migrations
Experience deploying and managing applications on Vercel
Solid knowledge of crash analysis tools and production monitoring
Experience designing and implementing caching strategies for high-traffic, globally distributed applications
Familiarity with i18n solutions and adding multi-language support to web platforms
Experience building and maintaining CI/CD pipelines
Leadership, mentoring and knowledge-sharing skills; you'll be guiding two mid+ React developers that have some experience with Next.js (13/14)
At least intermediate English level — all work communication is in English
Why to join us:
Direct product impact
: what you ship gets used immediately by real travelers.
Ownership
: you’re a builder leading the frontend direction.
Product engineering culture
: we care about UX and conversion as much as we care about clean code.
Fast pace, real learning
: constant iterations, clear feedback loops, real-world constraints.
Genesis ecosystem
: access to strong expertise, resources, and networking.
Benefits:
health insurance, 20 paid vacation days, annual performance review with clear salary progression.
Work format:
Possibility to work fully remotely or from our offices in
Warsaw, Kyiv
or
Lviv
.
Join us in reshaping the future of connectivity.
We are looking for a
Front-End Team Lead
to join Ohayu (https://ohayu.com). We are building the easiest way for travelers to stay online anywhere in the world.
We’re a fast-scaling B2C mobile + web app (iOS/Android/Web) that lets people buy eSIM data plans in minutes
- cheaper than roaming, no SIM shops, no hassle. Thousands of travelers already use Ohayu worldwide, and we’re just getting started.
Our ambition is bigger than eSIM: we’re evolving Ohayu into a full Travel App that makes every journey smoother.
What you’ll do:
This role is for someone who wants
real ownership
and
real product impact.
Take
full ownership of the frontend architecture and scalability
, designing a
target architecture to migrate our Preact SPA to Next.js SSR
Optimize website performance
ensuring the fastest load times for users around the world
Design and implement a
robust caching strategy
to support global performance at scale
Add multiple languages
to our platform
Collaborate closely with the design team to translate Figma designs into high-quality,
responsive user interfaces and A/B tests
Improve observability and error handling
across the frontend stack
Refine and implement proper CI/CD pipelines
to streamline our development and deployment workflow
Mentor, support and lead other frontend developers
, conducting code reviews and sharing knowledge
What we’re looking for:
7+ years of JavaScript experience
4+ years of React experience
4+ years of Next.js experience (ideally with hands-on work with App Router or Pages Router)
3+ years of TypeScript experience
Proven experience with migration projects - ideally having led or played a key role in SPA to SSR migrations
Experience deploying and managing applications on Vercel
Solid knowledge of crash analysis tools and production monitoring
Experience designing and implementing caching strategies for high-traffic, globally distributed applications
Familiarity with i18n solutions and adding multi-language support to web platforms
Experience building and maintaining CI/CD pipelines
Leadership, mentoring and knowledge-sharing skills; you'll be guiding two mid+ React developers that have some experience with Next.js (13/14)
At least intermediate English level — all work communication is in English
Why to join us:
Direct product impact
: what you ship gets used immediately by real travelers.
Ownership
: you’re a builder leading the frontend direction.
Product engineering culture
: we care about UX and conversion as much as we care about clean code.
Fast pace, real learning
: constant iterations, clear feedback loops, real-world constraints.
Genesis ecosystem
: access to strong expertise, resources, and networking.
Benefits:
health insurance, 20 paid vacation days, annual performance review with clear salary progression.
Work format:
Possibility to work fully remotely or from our offices in
Warsaw, Kyiv
or
Lviv
.
Join us in reshaping the future of connectivity.