Jobs at Djinni

About the company

Are you tired of missing important moments in your weekly game because no one recorded you? Say goodbye to FOMO and hello to PUSHIT!

PUSHIT allows you to easily catch up on all the highlights you did while playing your sports game.

Our advanced replay system allows you to capture moments previously taken, so you never have to miss anything.

We're a sports-tech startup building an innovative AI-powered platform that automatically generates highlights from live sports games. Our system combines IoT devices, mobile applications, and cloud infrastructure to deliver real-time sports content to fans and teams.

See those videos for more information about PUSHIT:

1. https://www.youtube.com/watch?v=uQrXgheKjCg
2. https://www.youtube.com/watch?v=pmdihAft2f8

What is the job

We're looking for a versatile Senior Backend Software Engineer to join as the main team member. This is a unique opportunity to work across our entire tech stack—from embedded systems to mobile apps to cloud infrastructure. You'll be a key player in shaping our product and engineering culture.

If you thrive in fast-paced environments, love learning new technologies, and want to make a real impact, this role is for you.

Responsibilities

• Build and scale backend services using Node.js with NestJS
• Manage and optimize cloud infrastructure on AWS
• Work with Kubernetes (K8s) for container orchestration and deployments
• Collaborate on IoT integrations involving Raspberry Pi and IP camera systems
• Participate in architecture decisions and code reviews
• Debug and troubleshoot issues across the entire stack
• Write clean, maintainable, and well-tested code
• Work with AI coding solutions (Claude Code / Cursor)

Requirements

• 5+ years of professional backend software development experience
• Strong proficiency in Node.js and TypeScript
• 3+ Experience with AWS services (EC2, S3, Lambda, ECS, RDS, etc.)
• 2+ Experience with Kubernetes
• Experience with NestJS framework
• Experience with TypeORM
• Understanding of RESTful APIs and microservices architecture
• Experience with SQL and NoSQL databases
• Strong problem-solving skills and ability to learn quickly
• Comfortable working independently and taking ownership
• Team player with excellent communication skills
• Knowledge of architectural principles, coding standards, design patterns and best practices
• Ability to multitask and handle various priorities.
• English – high level.

Nice to Have

• Experience with IoT devices or embedded systems (Raspberry Pi, cameras)
• Background in video processing or streaming technologies
• Working knowledge of Angular (or other client side JS frameworks)
• Familiarity with CI/CD pipelines (like GitHub Actions)
• Experience with real-time systems (gRPC, WebSocket)
• Previous startup experience
• Sports industry background or passion for sports

What We Offer

• Competitive salary
• Opportunity to be a senior team member with significant impact
• Work with cutting-edge technologies across diverse domains
• Flexible working arrangements
• Fast-paced startup environment with rapid growth potential
• Direct collaboration with the founding team

Solid Software is currently seeking a skilled Mobile Developer (Android, Kotlin) with Odoo ERP experience to design, develop, and maintain Android applications that integrate with Odoo-based systems.
 

We offer a friendly, progressive, and dynamic work environment that combines modern technologies with inspiring projects.
 

Enjoy the flexibility of a full-time, long-term remote position. Join us in creating exceptional mobile experiences.
 

Apply now to become a vital part of our team!
 

What will you do?

• Collaborate with an experienced team to develop user-friendly, responsive, and high-performance Android applications using Kotlin;
• Integrate mobile applications with Odoo ERP APIs and backend services.
• Support specialized functionality for B2B marketplaces;
• Ensure application security, data integrity, and proper error handling;
• Participate in code reviews, testing, and release cycles;
• Solve complex technical challenges and implement effective solutions;
• Document technical decisions and app features.
• Stay updated on the latest trends, tools, and techniques, and share your newfound knowledge with the team.
   

Requirements:

• 2+ years of experience developing Android applications using Kotlin;
• Hands-on experience integrating mobile apps with Odoo ERP;
• Strong experience with REST APIs, authentication, and data synchronization;
• Experience building clean, scalable, and maintainable Android architecture;
• Solid understanding of Android UI/UX guidelines and best practices;
• Strong focus on code quality, maintainability, performance, and reliability;
• Understanding of application security, data integrity, and error handling best practices;
• Familiarity with Git or similar version control systems;
• Upper-intermediate English (B2): Able to lead meetings and draft reports.
   

Nice to have:

• Experience with Odoo custom modules or ERP-driven workflows;
• Familiarity with mobile app testing and deployment processes;
• Knowledge of CI/CD pipelines for Android applications.
   

Why Solid Software?

• We support Ukraine;
• A wonderful team of enthusiasts and like-minded people;
• Atmosphere of comfortable work & life balance;
• Flexible schedule and work-from-home jobs;
• Opportunity to work on sophisticated B2B solutions that challenge your architectural and coding skills;
• MacBook Pro and great tech;
• Decent compensation;
• Lack of bureaucracy;
• Compensation for professional events, English lessons, sports activities;
• Corporate parties and fun team-buildings;
• Anniversary presents;
• Accounting and juridical services.
   

Professional growth:

• Onboarding and mentorship program;
• Internal career path program from Developer to Architect that consists of knowledge areas for IT specialists, books, training sessions, and work activities;
• Corporate library with the best programming books (+ an ability to order a particular book if we don’t have it);
• Professional and constant feedback.
   

We truly value the unique talents and skills that each individual brings to our company. As we continue on our journey of growth, we eagerly anticipate the opportunity to welcome you into our team.
 

Talk to you soon!

Solid Software is currently seeking a skilled Mobile Developer (iOS, Swift) with Odoo ERP experience to build and maintain iOS applications integrated with an ERP system.
 

We offer a friendly, progressive, and dynamic work environment that combines modern technologies with inspiring projects.
 

Enjoy the flexibility of a full-time, long-term remote position. Join us in creating exceptional mobile experiences.
 

Apply now to become a vital part of our team!

What will you do?

• Collaborate with an experienced team to develop user-friendly, responsive, and high-performance iOS applications;
• Integrate mobile applications with Odoo ERP APIs and backend services;
• Design, build, and refine complex features using Swift;
• Support and enhance specialized functionality for B2B marketplaces;
• Ensure applications meet performance, security, and usability standards;
• Solve complex technical challenges and implement effective solutions;
• Document technical decisions and app development features;
• Stay up to date with the latest iOS trends, tools, and best practices.
   

Requirements:

• 2+ years of experience developing iOS applications using Swift;
• Hands-on experience integrating mobile apps with Odoo ERP;
• Strong experience consuming REST APIs and managing mobile data flows;
• Focus on code quality, maintainability, and performance;
• Solid understanding of iOS UI/UX guidelines and Apple best practices;
• Strong analytical and communication skills;
• Upper-intermediate English (B2): Able to lead meetings and draft reports.
   

Nice to have:

• Experience working with ERP-driven or SaaS mobile applications;
• Familiarity with Odoo workflows, permissions, or API security;
• Familiarity with mobile app testing and App Store deployment;
• Exposure to CI/CD pipelines for iOS applications.
   

Why Solid Software?

• We support Ukraine;
• A wonderful team of enthusiasts and like-minded people;
• Atmosphere of comfortable work & life balance;
• Flexible schedule and work-from-home jobs;
• Opportunity to work on sophisticated B2B solutions that challenge your architectural and coding skills;
• MacBook Pro and great tech;
• Decent compensation;
• Lack of bureaucracy;
• Compensation for professional events, English lessons, sports activities;
• Corporate parties and fun team-buildings;
• Anniversary presents;
• Accounting and juridical services.
   

Professional growth:

• Onboarding and mentorship program;
• Internal career path program from Developer to Architect that consists of knowledge areas for IT specialists, books, training sessions, and work activities;
• Corporate library with the best programming books (+ an ability to order a particular book if we don’t have it);
• Professional and constant feedback.
   

We truly value the unique talents and skills that each individual brings to our company. As we continue on our journey of growth, we eagerly anticipate the opportunity to welcome you into our team.
 

Talk to you soon!

About the project

We are building and scaling a web platform focused on organic traffic and long-term growth.

Currently, we have a small SPA that needs to be transformed into a full-featured SSR solution using Nuxt.js to improve SEO performance and search engine indexing.

The main focus is technical SEO, SSR architecture, and performance optimization.

This is a long-term project with real business goals and stable workload.

Responsibilities

• Migrate SPA to SSR (Nuxt.js)
• Develop frontend using Nuxt / Vue 3
• Develop backend using Nest.js
• Work with MySQL and Prisma
• Implement SEO team requirements
• Optimize performance and indexing
• Maintain and scale the product

Requirements

• 3+ years of commercial experience
• 1+ year with Nuxt.js
• Strong JavaScript / TypeScript skills
• Experience with:
  • Nuxt.js
  • Vue 3 (Composition API)
  • Pinia
  • Nest.js
  • MySQL
  • Prisma
• Experience with SSR
• Understanding of Technical SEO
• Experience with database migrations

Join a Company That Invests in You

Seeking Alpha is the world's leading community of engaged investors. We’re the go-to destination for investors looking for actionable stock market opinions, real-time market analysis, and unique financial insights. At the same time, we’re also dedicated to creating a workplace where our team thrives. We’re passionate about fostering a flexible, balanced environment with remote work options and an array of perks that make a real difference.

What We're Looking For

Do you look at websites and think about how they might be personalized? Do you use websites and apps and think about how their features have been designed to be best for a lot of different users? Do you read articles with statistics and think about how they may be misinterpreting the data to get their results? If these things describe you, and if you’re great at SQL and have experience analyzing website data, you’re someone we want to talk to.

We’re looking for a Senior Data Analyst with experience analyzing website data. Our data analyst team analyzes everything on our website, not only for their immediate use but also for how they connect to high-level company KPIs. Our Analysts analyze raw data, not only pre-aggregated data, to extract just the right information and diagnose what is happening on our site.

The role requires understanding web development and how data is gathered, analysis of site usage and a/b tests, data visualization, and how different kinds of data can be presented most clearly, and business KPIs and how they are measured.

But more than that, we’re looking for experienced analysts who can bring us new ideas about how to analyze and extract insights from website data. Our ideal candidates have measured KPIs that we haven’t measured or used new ways to explain user retention, or analyzed features of users' data that we haven’t analyzed.

The best thing about our work is that we’re part of an incredibly data-driven company. Everyone from the CEO down uses data every day. The data teams are involved in every single thing the company does.

What You'll Do

• Analyzing the behavior of users on our site and apps:

-Build and maintain dashboards that visualize the usage of single or multiple features and how that usage drives company KPIs.

-Answer questions about site usage or user behavior based on deeper analyses.

• Analyze and track high-level KPIs such as conversion, retention, churn, recurring revenue, engagement, cross-device usage, e-mail and notification usage, and more.
• Communicate with business stakeholders on analysis results, how they relate to business, and what business suggestions result from the analysis.
• Run the whole data flow for site and app features, from defining KPIs, specifying data collection for development team implementation, and building and maintaining iterative versions of dashboards with both low-level and high-level views of collected data.
• Split tests of product features:

-Design a test with clear success criteria

-Monitor test integrity

-Analyze results and give recommendations

-Use segmentation and clear cohort analysis to validate significant conclusions

-Conduct exploratory analysis to identify trends and opportunities

Requirements

• A minimum of 5 years in a B2C website-related Data Analyst position
• Strong SQL skills with experience writing complex and efficient analytical queries
• Demonstrated experience with working in English directly with business stakeholders, understanding their needs, and explaining results
• Understanding of website development and operations and how they connect to data gathered.
• Experience with data visualization tools (Looker/Tableau/PowerBI, etc.)
• Experience with report writing and technical requirements analysis, business process modeling/mapping, methodology development, and data modeling

The company is seeking a creative and detail-oriented Tech Art Auditor to join a team dedicated to producing engaging mobile game ads using cutting-edge AI technology. This role focuses on reviewing, refining, and enhancing AI-generated 2D and 3D assets to ensure high-quality visual output for mobile game advertisements.
 

This is an excellent opportunity for candidates eager to gain hands-on experience in tech art, 3D/2D production, and AI-assisted content creation within a dynamic and fast-paced environment.

 

What You’ll Do:
 

• Evaluate AI-Generated Content
  Review AI outputs, spot imperfections, and provide actionable feedback to improve overall quality.
• 3D Editing in Blender
  Modify and optimise low-poly 3D models, adjust shading, and ensure assets are production-ready.
• 2D Image Editing & Asset Creation
  Edit images, create visual elements, and prepare polished assets for mobile game ads.
• Work With Generative AI Tools
  Use AI-driven software to generate, refine, and enhance art assets efficiently.
  
   

What You’ll Bring:
 

Core Skills Required:

• Blender expertise for model editing, shading, and optimisation
• 2D editing proficiency (image editing & asset creation)
• Familiarity with generative AI tools and workflows
• Strong attention to detail and ability to critique, refine, and polish visual assets
• Passion for mobile gaming - especially casual and mid-core titles
  
   

Why This Role Stands Out:
 

• Work with innovative AI technologies shaping the future of game advertising
• Join a creative, fast-moving environment that encourages experimentation and growth
• Build valuable experience across 3D, 2D, and AI-driven art production
• Ideal for candidates at the beginning of their tech art career who want meaningful, practical hands-on experience
• Long-term cooperation, B2B collaboration, remote flexibility, and loyal management
  
   

Why You Should Submit Your CV & Contact Information:
 

To be considered, candidates must leave their CV and contact details so the team can:

• Evaluate your technical skills and portfolio
• Match your experience to the right projects
• Invite you for next-step discussions
• Keep in touch regarding future AI-art opportunities
  
   

Leaving your CV ensures you don’t miss out on a role that can accelerate your growth in tech art and AI-assisted asset creation.

We are hiring a Senior DPDK / Systems Engineer for a Canadian product startup building a carrier grade network intelligence platform.

The company develops a high performance deep packet inspection and traffic classification engine used in security, intelligence, and telecom environments. The core system processes network traffic at extremely high throughput with strict latency requirements and is designed for continuous operation in carrier grade infrastructures.

The product is a low level, performance critical system built around DPDK and modern systems programming practices. It operates at line rate speeds, processes tens of millions of concurrent flows, and performs deep L7 inspection, traffic classification, and shaping in real time.

In this role, you will work close to the hardware and network stack, owning critical parts of the packet processing pipeline and performance optimization, in collaboration with senior system architects and infrastructure engineers.

Responsibilities

• Design and implement high performance DPDK RX/TX pipelines with zero copy forwarding

• Build per core, lock free flow tables supporting tens of millions of concurrent flows

• Implement L7 protocol parsing including HTTP, TLS SNI, DNS, QUIC, and custom protocols

• Develop application and traffic classification using signature based and ML assisted approaches

• Implement traffic shaping and QoS mechanisms such as hierarchical token bucket

• Integrate high performance pattern matching using Hyperscan

• Perform deep performance optimization using SIMD, cache tuning, and NUMA aware design

• Profile and debug performance bottlenecks using tools such as perf, VTune, or similar

• Work closely with hardware, infrastructure, and backend teams to ensure end to end system efficiency

Requirements

• 5+ years of hands on experience with DPDK in production systems, not research or prototypes

• Strong systems programming background in C++ or Rust, with willingness to work in Rust

• Deep understanding of poll mode drivers, mbufs, lockless data structures, and NUMA architectures

• Solid knowledge of TCP/IP stack internals and packet level protocol parsing

• Proven experience building and optimizing low latency, high throughput network systems

• Strong debugging and performance analysis skills

• Ability to work independently on complex, low level technical problems

• English level sufficient for technical discussions in an international engineering team

Nice to have

• Experience working at networking vendors or telecom equipment companies

• Background in carrier grade DPI systems

• Hands on experience with traffic shaping or QoS implementations

• Experience with ML inference pipelines such as ONNX Runtime

• Familiarity with eBPF, XDP, or kernel bypass techniques

• Experience with hardware offload technologies such as Flow Director or SR IO V

This is a long term opportunity to work on a technically extreme system at the core of a growing Canadian startup, solving hard performance problems at scale and building software that operates at the limits of modern networking hardware.

We are hiring a DevOps / Infrastructure Engineer for a Canadian product startup building a high performance intelligence and security platform.

The company develops a real time threat intelligence and data fusion platform used in security, cyber defense, and critical infrastructure environments. The system is designed for high throughput data processing, operational analytics, and carrier grade reliability.

The platform is infrastructure heavy and performance critical, combining containerized services, high load databases, and on premise lab environments with automated deployment and monitoring. A large part of the work focuses on building stable deployment pipelines, observability tooling, and realistic lab setups that closely reflect production conditions.

In this role, you will own infrastructure automation, monitoring, and operational reliability, working closely with backend engineers and system architects on a complex distributed system.

Responsibilities

• Design and maintain deployment automation for backend and frontend services using Docker and Ansible

• Containerize and operate a multi service stack including backend services, frontend, ClickHouse, and Redis

• Build and maintain CI/CD pipelines using GitHub Actions or similar tools

• Implement monitoring, dashboards, and alerting using Prometheus and Grafana

• Manage ClickHouse operations including replication, partitioning, TTLs, and performance tuning

• Set up and maintain lab environments with physical servers, NICs, and traffic generators

• Troubleshoot networking and hardware issues in test and staging environments

• Collaborate with engineers to improve system reliability, scalability, and operational practices

Requirements

• 5+ years of hands on experience with Linux systems, including bare metal and containerized environments

• Strong production experience with Docker and Docker Compose

• Practical experience with Ansible or Terraform for infrastructure automation

• Solid knowledge of monitoring and observability stacks, including Prometheus and Grafana

• Experience building and maintaining CI/CD pipelines

• Good understanding of networking fundamentals such as VLANs, routing, and traffic flows

• Ability to work independently in complex infrastructure environments

• Conversational English level sufficient for daily communication with an international team

Nice to have

• Experience with Kubernetes in production environments

• Background in carrier grade, ISP, or telecom infrastructure

• Hands on experience with high performance networking or DPDK based systems

• Hardware level troubleshooting experience

This is a long term opportunity to work on a technically complex platform in a growing Canadian startup, with real world impact and deep infrastructure challenges.

We're a multi-brand e-commerce company ($27M+/yr) in fashion and accessories, selling into EU and US markets. Products convert, AOVs are strong, we need experienced Google Ads buyers to scale spend profitably.

You'll do: Manage and scale campaigns across Performance Max and Display. Scale whatever way you think is best. Freedom.

You have:

• 1+ year managing Google Ads at $50K+/mo spend
• Strong Shopping / PMax / feed optimization experience
• E-commerce background (fashion, accessories, health preferred)
• Comfortable managing multi-country, multi-currency accounts

Compensation: $2,500–4,000/mo base + 10–15% of net profit above ROAS targets. Realistic total: $5–10K+/mo, uncapped. Fully remote, contractor.

We start with a paid 1-week test to evaluate fit for both sides.

We are looking for a Call Center Team Lead who combines the talent of a salesperson with the systematic approach of a manager. We need a person who speaks fluent English, understands player psychology, and knows how to build department operations to achieve maximum ROI.

Your future challenge: Effective management of the Outbound Sales team, increasing conversion rates, and ensuring flawless service for clients.

⚙️ Our Expectations (Requirements):

• English: Advanced (C1). You must communicate fluently, write compelling scripts, and pick up on the slightest nuances in operator conversations.
• Experience: 2+ years as a Team Lead or Supervisor in a Call Center (strictly in iGaming, Gambling, Crypto, or Forex).
• Hard Skills: Deep understanding of metrics (Conversion Rate, Retention, LTV, ROI) and data-driven decision-making.
• Sales Mindset: You know how to handle objections, how to "close" deals, and can teach the team to sell, not just consult.
• Management: Experience managing a team of 10+ people, conducting 1:1s, onboarding, and staff motivation.

• Tech: Confident user of CRM systems, VoIP telephony, and Google Sheets/Excel.

   

🚀 Key Responsibilities:

• Process Setup (Build from Scratch): Organizing department operations from the ground up — selecting and configuring tools, developing client workflows, and creating a knowledge base.
• Hands-on Sales: Making calls yourself during the launch phase. You need to test databases, feel the client's "pain," refine scripts, and demonstrate a masterclass to future employees.
• Team Building (Hiring & Onboarding): Creating candidate profiles, conducting interviews, hiring "stars," and ensuring quality onboarding.
• Management: Ongoing team management, KPI monitoring, Quality Assurance, and scaling the department.

• Scripting: Writing and constantly improving sales scripts in English.

   

⭐️ We Offer:

• Format: Remote work, 5/2 schedule.
• Payments in USDT (white crypto);
• Remuneration: Competitive salary + bonuses based on the results of the department you build.
• Growth: Opportunity for growth within the project.
• Benefits: Paid vacation and sick leave.

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 proactive Retention Manager to take ownership of our user lifecycle strategy. If you know how to turn a "new user" into a "loyal player" using data, smart segmentation, and AI — we want to meet you.

📍 The Role: You will take ownership of the player lifecycle, ensuring our users stay engaged, active, and loyal.

• Campaigns: Create and execute multi-channel campaigns (Email, SMS, In-App, Web Push).
• Journey Building: Design automated workflows covering Onboarding, Activation, and Reactivation stages.
• Segmentation: Utilize RFM analysis and behavioral data to target the right players with the right message.
• Optimization: Run A/B tests to boost Open Rates, CTR, and Conversion.
• Innovation: Actively use AI tools to generate content, build logic, and streamline workflows.

🛠 Tech Stack: Experience with Customer.io, Smartico, Fasttrack, or Optimove is a strong advantage.

👤 About You:

• Experience: 1.5–3 years in CRM / Retention Marketing.
• Industry: Experience in iGaming or digital products is highly preferred.
• Skills: Strong grasp of lifecycle marketing, segmentation, and copywriting.
• Mindset: Analytical approach to data and a creative approach to problem-solving.
• Tech-savvy: You are comfortable using AI for automation and content generation.

⭐️ We Offer:

• Format: Remote work, 5/2 schedule.
• Payments in USDT (white crypto);
• Remuneration: Competitive salary + bonuses based on the results of the department you build.
• Growth: Opportunity for growth within the project.
• Benefits: Paid vacation and sick leave.

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.

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 a Belgian SaaS company developing a suite of B2B web applications. Our core product, HyperPortal, is a no-code platform that allows organizations to automate business processes and build structured databases without requiring technical knowledge. On top of that product we have another SaaS called HyperBuilder, for building complex websites with dynamic data, and in the future we would also like to add e-commerce functionality.

We're looking for a pro-active frontend developer with an eye for details and a strong feeling for UI/UX.

6+ years of commercial experience in front-end or full-stack development.

Proven experience building large-scale, complex products (SaaS platforms, enterprise solutions, high-load systems).

Solid understanding of microservices architecture and its impact on frontend development.

Deep knowledge of JavaScript and TypeScript (ES5+, ES6+, and modern standards).

Strong practical experience with RxJS and reactive programming principles.

In-depth understanding of React architecture and scalable application design.

Experience with state management solutions in React (Redux, MobX, or similar).

Hands-on experience writing unit tests (Karma, Jasmine, Jest, or equivalent frameworks).

Strong ownership mindset, taking responsibility for the product from architectural decisions through release and ongoing support.

What We Offer:

Participation in a long-term product with real technical autonomy.

Opportunity to influence the technology stack, development processes, and team structure.

Flexible working schedule.

Remote or hybrid work format.