Jobs at Djinni

KuCoin is looking for a Senior Institutional Sales Manager to accelerate institutional adoption and deepen relationships with hedge funds, proprietary trading firms, asset managers, family offices, and HNW professional investors.

This role requires a strong network across traditional finance and crypto-native institutions, as well as the ability to translate complex institutional needs into scalable, actionable solutions within KuCoin’s ecosystem.

Responsibilities:

• Identify, engage, and onboard institutional clients, including: hedge funds, family offices, asset managers, proprietary trading firms, high-net-worth (HNW) individual clients.
• Build and manage a high-quality pipeline of institutional prospects.
• Serve as the primary contact for priority institutional accounts.
• Maintain deep, long-term relationships with key decision-makers.
• Provide timely market insights, product updates, and tailored support.
• Oversee the complete onboarding cycle: initial outreach, due diligence, KYC/AML, account setup, ongoing account support
• Work closely with trading, product, compliance, and operations teams to ensure seamless onboarding.
• Negotiate and close high-value institutional agreements.
• Attend industry events, conferences, and networking forums to strengthen presence.
• Monitor industry trends, regulatory updates, and competitor activity to identify new business opportunities.
• Provide market feedback to product teams to influence roadmap and institutional feature development.
• Achieve and exceed institutional sales targets.
• Drive meaningful trading volume and wallet share from institutional clients globally.

Requirements:

• 3+ years in institutional BD, sales, or relationship management within: crypto exchanges, prime brokerage / equity sales, capital markets, institutional crypto firms. 
• Strong understanding of crypto markets, derivatives, and institutional trading flows.
• Existing network across Crypto funds / TradFi institutions / Family offices is strongly preferred.
• Excellent communication, negotiation, and presentation skills.
• Able to translate complex products (spot, futures, OTC, yield, structured solutions) to institutional clients.
• Proven track record in meeting sales targets and managing key accounts.
• Strong self-management; thrives in fast-paced, global, remote environments.
• Familiarity with compliance & regulatory standards for institutional onboarding.
• Bachelors degree in Finance, Economics, Business or related field (preferred, not required).

Nice to Have:

• Experience with OTC desks, derivatives, or structured products.
• Knowledge of quant / API trading, algorithmic trading workflows.
• Relationships with crypto-native institutions (trading firms, miners, funds, DeFi protocols).
• Multilingual capabilities for global BD (Mandarin highly preferred).
   

Benefits:

• Drive institutional growth for one of the worlds leading exchanges.
• High-impact global role with significant revenue contribution.
• Work closely with product & trading teams building next-generation institutional infrastructure.
• Performance-based bonus of +20% on top of the base salary
• Competitive compensation, performance-driven culture, and strong career upside.

If this sounds interesting  or you know someone in your network — we’d love to hear from you!

• Project Description:

  Join a team that's redefining banking technology!
  
  Our client isn't a typical Swiss bank — it's a modern financial institution focused on delivering cutting-edge online trading and financial services. Unlike traditional banks weighed down by legacy systems, their tech stack is lean and innovative.
  
  The team builds products that transform complex, fragmented risk data into clear, actionable insights, enabling smarter and faster decisions to reduce risk. We focus on core business areas such as account risk and work closely with key stakeholders - Risk department, Compliance department, and the Middle Office Fraud Center — to deliver impactful solutions.
  
  You'll be part of a Scrum team of four, collaborating daily with stakeholders through stand-ups, status updates, and Agile ceremonies. We embrace best practices and modern communication tools: Zoom, Teams, Outlook, JIRA, Confluence, and more.
  
  We continuously evolve our solutions to atomic microservices and self-contained systems, based on dockerized environments with CI and CD.
  
  What we offer:
  Professional Growth: access to local trainings, on-demand webinars, interactive workshops, and support for conferences and certifications.
  
  Competitive Compensation: Regular annual reviews based on your performance and professional development.
  
  Work-Life Balance & Fun: Team-building activities, corporate events, hackathons, and a variety of engaging initiatives.
  
  If you're proactive, creative, and ready for new challenges, join us! Together, we'll enhance product quality and optimize processes while driving innovation.

• Responsibilities:

  - Overall responsibility for a team, its performance
  - Driving the Scrum processes, coaching the team, driving improvements
  - Contributing towards the technical direction of the products by being involved in technical design and delivery of components
  - Identifying potential risks and escalating to the manager and client
  - Communicating and interacting effectively with other Team Leads
  - Participation in meetings with the client (Stand Ups, Grooming, Planning, Demo, Retro, and other ad-hoc ones)
  - Requirements refinement, Sprint planning, and task estimation
  - Application development
  - Developing unit/integration tests, E2E, ensuring good development testing coverage
  - Lead a team of 3 developers
  - Participate in peer design and code reviews
  - Evaluate and adopt new development tools, libraries, and approaches to improve delivery quality

• Mandatory Skills Description:

  - 1+ year in Team Lead position [fresh experience during last 2 years]
  - At least 5+ years of proven experience in a Software Developer position
  - Java core, Java 11-17+ features
  - OOP/OOD knowledge, design patterns
  - HTML, CSS, JavaScript
  - Proven knowledge of ReactJS, Redux [2+ fresh years of proven experience]
  - Unit testing frameworks (JUnit, Mockito, etc.), experience of integration and E2E tests building
  - Spring framework, IOC
  - RESTfull services
  - Java-based application servers (e.g. Tomcat)
  - SQL knowledge, any RDBMS, Oracle/PostgreSQL is a plus
  - ORM, Hibernate in particular
  - CI tools experience (Jenkins)
  - Docker

• Nice-to-Have Skills Description:

  - Education: Bachelor's / Master's degree in computer science or computer engineering
  - Experience in finance/banking business domain
  - Unix usage experience
  - Kafka
  - Java 17+
  - WebSocket
  - TypeScript

• Languages:
  • English: B2 Upper Intermediate
  • Ukrainian: C2 Proficient

24PLAY is a product company from Ukraine that has been developing and publishing mobile games since 2019. We are a team of professionals who have launched dozens of popular games and gained over 100 million satisfied players worldwide. Our games include Zombiepunk, Bliezkrieg Assault, Street Dude, and more.

We are currently looking for a Concept Artist to share our core company values:

• Creativity: We actively encourage and embrace each other’s ideas, transforming them into reality through collaboration and innovative thinking.
• Integrity: We commit to providing honest feedback and realistically assessing situations, fostering a culture of trust and transparency.
• Productivity: We strive to optimize our workflows to achieve the best possible results in the shortest timeframe, ensuring efficiency and effectiveness in our operations.
• Uncompromising Quality: Our commitment to excellence drives us to prioritize the quality of our work above all else, ensuring that we consistently deliver outstanding results.
• Healthy Lifestyle: We advocate for a healthy lifestyle and stand against harmful habits, promoting well-being and balance within our team.

We are looking for a professional for the role that requires:

• Full-time job;
• Office-based in Kyiv.

Main responsibilities:

• Creating the visual style of the project based on the game design document
• Developing concept art for environments and characters
• Finding visual solutions for game mechanics

Our ideal candidate:

• At least 1 year of relevant experience
• Degree in a related field
• Proficiency in graphic editors such as Adobe Photoshop, Krita, or ProCreate
• Ability to create impactful concept art with consideration for game engine capabilities
• Strong spatial awareness and understanding of perspective
• Knowledge of color theory and composition principles
• Experience working with 3D graphics

Why join our team?

• Fully Legal: Official employment in full compliance with Ukrainian labor legislation, including paid vacation (24 days) and sick leave (unlimited).
• Professional Team: A high-performing group of skilled individuals committed to excellence.
• No Overtime: We prioritize a healthy work-life balance, with no overtime required.
• Stable Payments: No payment delays since the foundation of the company.
• Professional Development: Access to mentorship programs and our internal library for continuous growth.
• Weekly Events: Enjoy board games, masterclasses, corporate events, BBQs, sports activities, and free English classes.
• Comfortable Workspace: A modern office in Kyiv featuring a spacious lounge, fully-equipped kitchen, sports zone, cinema, and complimentary spa facilities for employees.

We look forward to receiving your application!

We’re scaling a profitable dating product and are hiring a Payment Operations Manager (Billing & Risk) to fully own payments end-to-end - from billing and antifraud to chargebacks and payment operations.

You’ll work directly with the COO and drive measurable improvements in revenue, LTV, payment stability, and operational efficiency.

What We Offer

• Transparent performance-based bonuses tied to real business metrics
• High level of autonomy and ownership - no micromanagement
• Direct collaboration with COO and founders
• Access to modern payment tools, providers and infrastructure
• Opportunity to influence strategy, not just execute tasks
• Flexible work-life setup: no approvals for time off, async-friendly

About Us

• High-LTV dating product with strong monetization and proven unit economics
• High-risk, high-volume payment environment with real challenges
• Startup mindset: fast decisions, minimal bureaucracy
• International markets and complex payment setups

What You’ll Be Doing

• Own payment operations end-to-end: billing, payments, refunds, chargebacks, disputes
• Manage and optimize billing flows (subscriptions, retries, refunds)
• Monitor and improve payment passability, approval rates, LTV
• Lead antifraud & payment risk management (cards, wallets, PSP rules)
• Maintain and improve MID health across multiple PSPs and geographies
• Work with banks, PSPs, and payment providers
• Build and optimize chargeback representment processes
• Collaborate closely with COO, product, tech, support and legal teams
• Set up dashboards, alerts and reporting for payment & billing performance
• Identify bottlenecks and proactively propose improvements

Requirements

• Strong experience in payments, billing and payment operations
• Hands-on background with chargebacks, fraud, antifraud tools
• Experience in high-risk verticals (dating, nutra, gambling, etc.)
• Solid understanding of PSPs, MIDs, routing and payment flows
• Data-driven mindset: confident with metrics, dashboards and analytics
• Ownership mentality - you fix problems, not just escalate them
• Comfortable working closely with COO and taking responsibility
  
   

Why This Role Is Different

This is not a narrow antifraud or billing role.
This is a single owner role for payments + billing + operational payment processes, with real influence on business outcomes.

About the Client:
Our client delivers comprehensive operational support and expert services to leading insurers, brokers, fleet managers, and automotive manufacturers. Specializing in optimizing claim management, they process millions of claims annually with a focus on efficiency, cost-effectiveness, and transformative strategic innovation leveraging advanced software solutions, cloud computing, and modern design principles.

Short Role Description:
We are seeking an accomplished and proactive Senior D365 Functional Consultant to drive the implementation and enhancement of Microsoft Dynamics 365 solutions. You will bridge business stakeholders and technical teams, analyzing business processes and designing tailored, high-impact solutions to support the insurance market’s operational excellence and digital strategy.

Key Responsibilities:

• Engage with key business stakeholders to elicit, analyze, and document business requirements, translating them into efficient and scalable D365 solutions.
• Lead discovery sessions and workshops to identify process improvements and provide best-practice guidance for D365 applications (primarily D365 Finance & Operations/Customer Engagement).
• Map business processes and conduct fit-gap analysis to recommend configuration, customization, and integration strategies.
• Collaborate with architects, developers, and system integrators to deliver end-to-end solutions encompassing configuration, data migration, reporting, and user acceptance testing.
• Prepare functional specification documents, system design documentation, and user manuals.
• Oversee solution design, configuration, deployment, and post-go-live support to ensure seamless operation and optimal adoption.
• Train and mentor business users and junior consultants, ensuring knowledge transfer and high user satisfaction.
• Identify project risks, propose mitigation strategies, and support change management initiatives.
• Actively monitor Microsoft D365 product roadmap and industry trends to recommend continuous improvements and ensure the client maximizes the platform’s capabilities.
• Manage multiple priorities and coordinate dependencies with cross-functional teams and external vendors.

What We Expect from You:

• 5+ years of hands-on experience implementing Microsoft Dynamics 365 (Finance & Operations or Customer Engagement) as a Functional Consultant.
• Strong business analysis and process reengineering skills within insurance, financial services, or related industries.
• Deep knowledge of D365 core modules (Finance, Supply Chain Management, or equivalent) with hands-on experience in configuration and customization.
• Proven ability to lead requirements gathering, workshops, and functional solution design.
• Excellent communication and stakeholder management abilities—able to present technical information to non-technical audiences.
• Demonstrated success in delivering end-to-end D365 implementations, including post-go-live support.
• Experience integrating D365 with third-party or legacy systems is advantageous.
• Microsoft certifications (e.g., MB-310, MB-300, MB-210) are highly desirable.
• Strong English proficiency (Upper-Intermediate/Advanced level).

ArboStar is the leading all-in-one business management platform servicing clients in the green industry such as landscaping, tree care, lawn care and more, across the globe. Our innovative, cloud-based software integrates everything from CRM and scheduling to GPS tracking and business analytics, ensuring seamless workflow and exceptional customer satisfaction. With a dynamic and fast-growing team of 80+ professionals, ArboStar is committed to delivering exceptional products and services that help our clients succeed.

Why ArboStar? At ArboStar, we foster a dynamic and supportive work environment where creativity, collaboration, and dedication to excellence are valued. Join our team and help revolutionize the green industry with innovative technology and outstanding service.
 

What We’re Looking For:

We’re searching for someone with a strong command of spoken English (C1 or higher) — that’s our top priority, as most communication will happen in English and with English-speaking colleagues.

Everything else — we’re ready to teach and guide you, as long as you’re open to learning and growing with us.
 

It would be great if you also have:

• Around 1 year of experience in onboarding, internal, or corporate training
• Experience creating engaging training materials (slides, cases, tasks, etc.)
• Some background in organizing onboarding or mentoring new hires
• Interest or experience in evaluating and improving training effectiveness
• Familiarity with content creation tools (PowerPoint, Word, Google Docs, etc.)
• Experience (or interest) in working with LMS platforms and tools like Google Workspace or Jira
• Good organizational skills, responsibility, and a proactive attitude
• Ukrainian (C1 or higher)
   

Key Responsibilities:

• Develop and deliver onboarding training for new employees, including structure, materials, and practical sessions.
• Support newcomers with system-related questions and help them adapt faster.
• Regularly review and update training content based on feedback and process changes.
• Organize training sessions for current employees to improve their system knowledge and skills.
• Create training on new system features and updates to keep the team up to date.
• Conduct quarterly testing to assess knowledge and identify areas for improvement.
• Work closely with HR to align training with company goals and share employee progress insights.
• Provide feedback to HR on candidates’ training performance and competencies.
• Close collaboration with Business Analysts — the candidate should stay up to date on planned updates, features, and releases in order to develop relevant training materials and conduct sessions that explain new system functionalities.
• Close collaboration with team leads — regular discussions about new hires’ progress, participation in joint surveys, identifying areas of improvement in knowledge and skills, and working together to enhance employee development through additional training and support.
   

What We Offer:

• Only remote work
• Work schedule: 13:00 — 21:00 or 14:00 — 22:00 (Ukrainian Timezone)
• Paid vacation (10 days);
• An opportunity to significantly influence the direction of the company;
• Steep learning curve and personal growth opportunities;
• Access to courses and training;
• Corporate English language training;
• Competitive salary.

This is NOT a traditional developer role.
We’re not looking for someone who writes code all day — we’re looking for someone who leads AI agents that write code for you.

This is not “a regular dev job with an AI assistant”.
This is a role for a person who thinks in systems, prompts, and outcomes, not in endless manual coding.

About us

We are a group of companies with 30+ active projects across travel, fintech, mobile apps, and AI products.
We build products through AI agents, and we’re looking for someone who knows how to work with them effectively.

Tech stack:

• Frontend: Next.js, React Native
• Backend / Infra: Vercel, Firebase, Cloudflare

What you’ll do

• Translate product and technical ideas into clear tasks for AI agents
• Guide AI agents to produce production-ready code
• Review, refine, and improve AI-generated code
• Choose the right models and tools for each task
• Push features all the way to production

In short: you manage an AI-powered dev team that writes code for you.

What we’re looking for

• 1+ year of web development experience
• 3+ months of hands-on work with AI coding tools
• Experience working with AI agents (not just autocomplete)
• Ability to read code and do code reviews
• Solid understanding of frontend, backend, and APIs
• Advanced English

Nice to have

• Built projects mostly or fully using AI
• Know how to optimize AI usage for cost and limits
• Actively follow new models and AI dev tools
• Experience with mobile development

What we offer

• 🏢 Office-based role in Warsaw
• 🤖 Unlimited access to top-tier AI models
• 🎯 Direct collaboration with the CTO — no bureaucracy

How to apply

Please include:

• Examples of projects you built using AI
• Your AI setup: tools you use and how you handle limits and costs
• If you’ve only worked with Cursor — what doesn’t work for you in it?

🚀 If you want to build fast, experiment, and shape how products are created with AI — we’d love to hear from you.

Requirements:
• Webflow (system-level, production, CRO pages) — 5+ years
• Large-scale Webflow websites, reusable components, CMS, rapid iteration without system disruption, working in a high-velocity marketing environment.
• Conversion Rate Optimization (CRO, A/B testing, experimentation mindset) — 2+ years
• Practical experience in conversion rate improvement: hypotheses, landing pages, tests, iterations, understanding metrics and the impact of changes.
• Front-end fundamentals (HTML/CSS + basic JS for experiments) — any
• Responsive layout, flex/grid, stable markup, JS for DOM manipulation, integrations, and experimental scenarios.

 

About us:

AIR Media-Tech is the ultimate space for creators. With over 30 advanced tools and expert support, we help creators grow, monetize, and safeguard their content. For over 15 years, we’ve been empowering creators to expand their reach, boost their income, and scale globally with innovative solutions tailored to their needs.

Our Mission:

Our mission is simple: to help creators thrive, providing innovative tools and strategic insights that fuel growth and monetization. Whether it’s finding hidden growth spots, protecting their content, or tapping into new markets, we ensure that creators' journeys are supported every step of the way. At AIR, we help creators hit their next target and unlock new levels of success.

Responsibilities:

• Experience in supporting partners/clients.
• Presentation to partners of new products and services of the company that can help in the development of the creator channel.
• Create individual development plans for the creator channel.
• Support, maintenance, consultations for bloggers on new products and trends on YouTube, and advice on channel development.
• Assistance in solving various issues related to the YouTube platform or channel.
• Monitor the dynamics of channel development, key channel indicators, and analytics.
• Work with partner portfolio reporting.

Working conditions:

• Full-time employment.
• Remote work format.
• Start of the working day before 10:00, with a flexible schedule

Requirements:

• Experience in working with clients.
• Ability to work with large amounts of data.
• Ability to analyze information and make conclusions about analytics.
• Theoretical basic knowledge of marketing.
• Basic experience with social networks.
• Analytical skills and ability to work with tables.
• Ability to work with tables and formulas.
• English at Upper Intermediate level.

Preferred Qualifications a plus:

• Experience in a similar position.
• Experience with AI.

Company Values:

• Exceptional expertise — striving to be the best in your field
• Meticulous — delving deep into the client’s business at the client level
• Flexibility — accept change as an integral part of the business
• ROI-oriented — our primary focus is affecting income growth and reducing costs, then everything else.
• Data-driven — data-driven assumptions and decisions
• Appreciation — feedback and recognition: the ability to notice, evaluate, encourage, note, and make adjustments.

The Benefits:

• Quality health insurance.
• Remote work and flexible schedule with work-life balance.
• Financial compensation for language courses.
• Corporate events for you and your family.
• Online and offline team building for your team.
• Vacation leave of 18 work days.
• Paid sick leave.
• Corporate library, lectures, and webinars on various topics.
• Opportunity to participate in volunteer and charitable projects, as well as projects to support the military.
• Gifts for birthdays and special occasions (weddings, Christmas, etc.)

Do you want to be involved in outstanding projects? Send us your resume. If we feel you could be a good fit, we will contact you soon!

Our client is a full-fledged Infrastructure SaaS platform for media buying, combining proven resources, AI tools, and secure payment processing in a single ecosystem. We create digital advertising infrastructure for affiliates and agencies, offering accounts, virtual cards, and optimization tools.

Primary Role Objective
Ensure stable, high-quality warm-up and creation of Google accounts.

Tasks and Responsibilities
Account Farming: Warming up and creating Google accounts strictly according to the manual (standard workflow).
Tools: Using the anti-detection browser (Octo Browser), proxies, and internal platform tools.
Reporting: Recording actions in Excel and working with the CRM system.
Quality Control: Ensuring account viability.
Working towards scaling onto the Facebook platform.
Key Metrics (KPIs):
Number of completed farming actions per day.
Ban percentage (Quality Check) after the sale and grace period.
Candidate Requirements
At least 3 months of experience in account farming or traffic arbitrage.
Proficiency with the Octo Browser anti-detection browser is required.
Proficient in Excel (Google Sheets).
Understanding of CRM principles.
Responsibility: Strict adherence to manuals and regulations.
Communication skills: Ability to promptly provide feedback to management.
Languages: Knowledge of foreign languages ​​is not required.

Job description

We’re looking for a senior software engineer with SRE experience to join our core team and work on complex technical challenges. 

Our client is a well-funded, fast-growing startup ($7M raised in seed) building a global equity management and compliance platform. Their solution enables dozens of customers to effectively manage their equity compensation plans, ensuring compliance with each country’s laws and regulations, and optimizing the tax treatment of employees' equity.

In this role, you’ll work with a top-tier engineering team (ex-Google, ex-Meta) on a wide range of tasks: from streamlining the development experience to optimizing the application's performance and enhancing the testing infrastructure (among other things). Our ideal candidate is a self-starter who can quickly navigate their way around new tech stacks and engineering problems. 

Required skill-set & experience

• At least 5+ years of production experience with Node.js/Nest.js and TypeScript
• Solid experience with distributed databases, queues and other data structures 
• Experience with containers and their orchestration (Kubernetes, Docker, Cloud Run) 
• Experience with monitoring and observability (Datadog, Grafana, Prometheus) 
• Good grasp of core computer science algorithms, data structures, their applications and tradeoffs
• Passion for debugging deep issues across stacks and networks
• Upper-intermediate+ level of English

Bonus points

• Experience with GCP and IaC (Pulumi/Terraform) 
• You’re a contributor to open-source software or run your own projects

What’s in it for you 

• Opportunity to become a core part of a boutique software consultancy, working with well-known international customers and highly complex tech challenges 
• Competitive salary 
• Paid vacation and sick leave 
• Remote-friendly culture
• Internal mentorship and upskilling 
• Learning & development budget ($400/year)
• Health bonus ($40/month)
• PE administration support

We are looking for a full-stack that will help us to bring our educational web technology Classtime to the next level. You'll be working with a distributed team (US, Switzerland, and Ukraine). 

Our Product

Classtime enables teachers to create questions on an internet-connected device (mobile phone, tablet, PC/notebook), push it to all student devices and track the performance of a class immediately in a class session. The teacher receives valuable information about the individual student's performance and can intervene as deemed appropriate, thereby improving the overall learning progress of the class. By answering the questions, all students are fully engaged, which can also be analysed after class and even over time to measure a single student's or the entire class's development.

Classtime is trusted by more than 400,000 teachers and various clients (schools / businesses) globally.

Спільнота Classtime в Україні: https://www.facebook.com/groups/classtimeua/

Responsibilities

- Implement new features and user interfaces of the Classtime Apps for students and teachers;

- Architect efficient and reusable front-end systems that drive complex web applications;

- Create APIs and implement business logic in micro-services;

- Collaborate with Product and Graphic Designers to deliver compelling user-facing products;

- Manage your own time, and work well both independently and as part of our SCRUM team;

- Launch, iterate and make a difference. Provide full-stack coding expertise, and be ready to make Classtime better for our users;

Must-Haves

Experience with React, Redux, OOP;

1+ years of JavaScript or Typescript experience and strong knowledge of ES6 or Typescript;

1+ years of backend development;

Nice to have

- Experience programming in Typescript.

- Experience programming in Python, Java and Kotlin;

- Experience in building responsive mobile-first web application;

- Strong sense of web design and fundamentals of user experience;

- Experience with implementing micro-services;

Classtime's Stack

- React, Redux, Redux Saga, TypeScript;

- HTML, SCSS, JSS;

- Webpack;

- Kotlin, Microservices, Django;

- Deployed on the Google Kubernetes Engine;

- Third-parties: Pusher, Cloudinary, Elastic Search;

Compensation & Location

Market-oriented salary. Remote office. We have several teammates in Kyiv. You must currently live in Ukraine.

Classtime Values

Curiosity - Always continue to experiment and learn.

We have to focus on our client, the teacher. We question critically, we listen carefully and experiment creatively with new ideas. If you love to understand the unknown, then continue, because you now know 25% of our values.

Impact - Always focus on generating value for society.

We don't pride ourselves with large employee numbers, but rather with exceptional impact per team member. We expect exceptional ownership and responsibility, not only for your tasks, but for our impact on society. Don't go improve the next ad platform, help us in our attempt to shape the future of education. If you can throw a punch with impact, then use both fists, not only 50%.

Perseverance - Always keep pushing yourself.

We are a distributed team, working across several time zones. Just like us, you can live in Los Angeles, Kyiv, Zurich, or anywhere you want. Our home has many names: Google Drive, Google Hangouts, Github, InVision, Slack, etc. We don't excel through pressure, but through alignment and discipline. We don't require you to run with us forever, but don't expect a half-marathon either. Just keep in mind: pain is inevitable, suffering is not. Persevere. You're already at 75%.

Honor - Act with integrity, always help a friend or rival.

Education is not a battle against each other, but for each other. Technology is already having a great impact on education. Why do we care? Because we believe that creative, curious people will honor future generations and learn to solve the world's biggest challenges for the long-term. This is what Classtime is all about – and we will relentlessly strive for our goals and keep pushing the frontiers of education. With our friends and “co-opetition”. This is 100% Classtime.

Get in touch with us now, let's talk!

Interview Process

1. Pre-assessment - Show that  you know the basics.
2. Technical Interview - Your opportunity to demonstrate your skills!
3. Personal Interview - Let's see if you are a good fit to the company.

QA Engineer – Data Warehouse & BI Testing
 

We are looking for a QA Engineer to join our Data Analytics team and ensure the reliability of the data that informs key business decisions. In this position, you will focus not only on testing but also on validating that the insights driving our business are trustworthy and accurate. Your contributions will directly support teams across the company, enabling faster and more confident decision-making.
 

What you’ll do:

• Conduct thorough validation of data transformations and integration workflows to ensure correctness and completeness.
• Review and verify BI reports and dashboards, including calculations, aggregations, and visual presentation.
• Collaborate with developers to identify, troubleshoot, and resolve data issues.
• Participate in requirement discussions to understand business needs and define the scope of testing.
• Develop and maintain detailed test plans, test scenarios, and scripts for data and reporting projects.
• Record and track defects, ensuring they are resolved and documented appropriately.
• Assist with User Acceptance Testing (UAT) and work with business users to confirm data accuracy.
• Support the creation of testing standards and best practices for data projects.
   

Required qualifications:

• Minimum 3 years of experience in manual testing.
• At least 1 year of hands-on experience with Data Warehouses (essential).
• Strong SQL skills and understanding of database testing concepts.
• Experience designing and executing test cases.
• Knowledge of BI tool testing, preferably Power BI.
• Strong analytical skills and attention to detail.
• Good teamwork and communication skills.
• Knowledge of the Czech language (written and spoken)
   

Will be a plus:

• Understanding of data warehousing testing approaches.
• Familiarity with test automation tools or frameworks.
• Experience with Snowflake, DBT, or similar data transformation platforms.

TICKETS is a product built by the bxnda.com team — a travel-tech company that builds and scales flight ticket aggregators across 80+ countries worldwide.
We’re a startup, not a bureaucracy-heavy corporation. Speed, ownership, and real results matter here.

We’re looking for a Marketing Manager to take ownership of marketing growth in Brazil and help scale one of our key markets.

Your role

You’ll be responsible for Brazil’s marketing growth — from paid channels to campaign planning and hypothesis testing.
We’re not looking for someone who “just runs ads”, but someone who thinks in terms of growth, traffic, and efficiency.

What you’ll do

• Plan and launch paid campaigns:
  • Google Ads
  • Meta Ads (Facebook / Instagram)
  • TikTok Ads
• Plan marketing activities around:
  • seasonality
  • local events
  • demand and traffic peaks
• Test hypotheses, creatives, audiences, and formats
• Work with analytics (CPA, ROAS, CTR, traffic)
• Collaborate with SEO, content, and local creators
• Propose and execute non-standard, cost-efficient growth ideas

What we’re looking for

• Hands-on experience with Google Ads and Meta Ads
  (TikTok Ads is a strong plus)
• Solid understanding of performance marketing & growth
• Ability to plan campaigns, not just execute them
• Analytical mindset and results-driven approach
• Proactive attitude and ownership of a market

Work format

• 🏢 Office-based role
• 📍 Warsaw, Poland (or relocation to Warsaw)

✈️ Apply now!
If you want to build marketing through growth and experimentation, not rigid instructions — we’re on the same page.

Job description

We’re looking for a senior frontend developer to join our core team and work on complex technical challenges. 

Our client is a well-funded, fast-growing startup ($7M raised in seed) building a global equity management and compliance platform. Their solution enables dozens of customers to effectively manage their equity compensation plans, ensuring compliance with each country’s laws and regulations, and optimizing the tax treatment of employees' equity.

The product sits at the intersection of fintech, legaltech, and AI, solving one of the hardest infrastructure problems in global business: real-time equity and compliance automation.

In this role, you’ll work with a top-tier engineering team (ex-Google, ex-Meta) and will design and implement elegant, high-performance interfaces for complex financial and legal data - making global compliance intuitive and accessible. 

Responsibilities
 

• Build and maintain advanced UI components with React.js, MUI, Zustand and more
• Collaborate with product and design to translate complex workflows into intuitive experiences
• Drive performance optimization, accessibility, and responsive design
• Implement and maintain frontend testing using Playwright (unit, integration, E2E)
• Participate in system architecture discussions and cross-team projects
   

Required skillset & experience 
 

• 5+ years of experience in modern frontend development
• Expert in React.js and TypeScript
• Familiarity with design systems or component libraries (MUI preferred)
• Experience with state management (Context API, Redux, Zustand, Jotai or similar)
• Skilled in testing frameworks and E2E automation
• Strong sense of design and attention to user experience
   

Bonus points

• Experience working in fintech or complex B2B SaaS platforms
• Understanding of backend integration and data-driven UIs

• You’re a contributor to open-source software or run your own projects

   

What’s in it for you 

• Opportunity to become a core part of a boutique software consultancy, working with well-known international customers and highly complex tech challenges 
• Competitive salary 
• Paid vacation and sick leave 
• Remote-friendly culture
• Internal mentorship and upskilling 
• Learning & development budget ($400/year)
• Health bonus ($40/month)
• PE administration support