Jobs at Djinni

Numerical Technologies is a leading provider of custom software solutions and services specializing in risk, limits, and regulatory capital. Right now, we are looking for a DevOps Engineer to join our team.

What will you be doing?

• Deployment, support and maintenance of development environments.
• Continuous CI/CD process development.
• Support and maintenance of the assembly and delivery system.
• Service virtualization infrastructure support and development.
• Responsibility for the smooth delivery of applications to the production, testing and development environments.

What are we looking for?

• Understanding of High Availability principles, following best practices.
• Python/Bash/PowerShell: scripting, automating.
• Git: Bitbucket.
• Docker, Kubernetes, Helm.
• DB: PostgreSQL, MongoDB.
• Monitoring tools: Grafana, Prometheus.
• Web servers: IIS, Nginx.
• Experience with proxies and load balancers.
• CI/CD: TeamCity, Jenkins, Azure DevOps.
• IaC: Terraform, CloudFormation.
• Azure, AWS.
   

Nice to have:

• Experience with on-premises servers.
   

What we offer:

• Competitive compensation depending on experience and skills.
• Regular assessments and salary reviews.
• Paid personal days.
• Health insurance.
• Mental health support program.
• English/Polish/Spanish language classes.
• Flexible working schedule.

Golden Panda Marketing is an international performance-driven affiliate company. We scale health & lifestyle products through paid traffic (Meta, Google, Native, DSP) — focused on ROI and measurable results.

What you’ll do

• Launch, test & scale campaigns in Meta Ads Manager
• Run structured creative testing (UGC/angles/hooks) and scale winners
• Optimize for KPI targets (CPA/ROAS) based on daily performance data
• Own tracking basics: Pixel + CAPI, events, attribution

• Work with the team on landing pages & funnel improvements

   

Requirements

• 2+ years as a Meta/Facebook Media Buyer (performance role)
• Proven ability to scale profitably and manage budgets
• Strong analytics mindset (CPM/CTR/CVR/CPA/ROAS)

• Comfortable communicating in English

   

What you get

• Full-time, 100% remote
• $1,500–$2,500 base/month + high commissions
• Fast scaling environment with real ownership

____________________________

Golden Panda Marketing — міжнародна performance-орієнтована affiliate-компанія. Ми масштабуємо продукти унішах health & lifestyle через платний трафік (Meta, Google, Native, DSP) — з фокусом наROI та вимірюваний результат.

Що ти робитимеш

• Запускати, тестувати та масштабувати кампанії в Meta Ads Manager
• Проводити структуроване тестування креативів (UGC / angles / hooks) і масштабувати “переможців”
• Оптимізувати під KPI (CPA/ROAS) на основі щоденних даних перформансу
• Володіти базою трекінгу: Pixel + CAPI, івенти, атрибуція

• Працювати з командою над покращенням лендингів та фанелів

   

Вимоги

• 2+ роки досвіду якMeta/Facebook Media Buyer (performance-роль)
• Доведена здатність масштабувати в прибуток і керувати бюджетами
• Сильне аналітичне мислення (CPM/CTR/CVR/CPA/ROAS)

• Комфортна комунікація англійською

   

Що ти отримуєш

• Full-time, 100% remote
• $1,500–$2,500 базова ставка/місяць + високі комісії
• Динамічне середовище швидкого скейлу з реальним рівнем відповідальності (ownership)

Lead Gen 

We are looking for a lead generator with experience in product sales. Experience can vary — the main thing is that you have real successful cases of attracting traffic and leads, high conversions, and you can explain how you achieved this.

In this role, you will work with our internal product TipTop (LinkedIn,

website), effectively use LinkedIn and email newsletters, influence customer acquisition processes, and optimize sales approaches, seeing concrete results of your work.

We offer:

- Competitive salary

- Full benefits package after probation period

- Work in a team where your ideas really influence product development

Selection stages:

- Test assignment

- Interview with the CEO 

- Offer

Role overview 

Own end-to-end solution design across multiple domains/teams, drive architectural standards, and ensure our services are secure, scalable, and operable on Azure with .NET and MS SQL Server. 
 

Responsibilities 

• Business & technical analysis (primary) 
• Review and validate business requirements (BRD/PRD), user stories, acceptance criteria, and process flows; identify gaps, ambiguities, and hidden assumptions. 
• Partner with Product Owners and Business Analysts to improve requirement quality (scope, edge cases, data rules, non-functional requirements). 
• Translate business processes into technical models: domain boundaries, workflows, states, permissions, auditability, and reporting needs. 
• Facilitate discovery workshops and technical deep-dives; produce clear outputs (options, trade-offs, risks, recommendations). 
   
• Solution architecture & design 
• Own end-to-end solution design for major backoffice initiatives (services, integrations, data, security, runtime). 
• Define and govern architecture standards: API guidelines, error model, compatibility strategy, resiliency patterns, observability, security. 
• Produce and maintain architecture artifacts: C4 diagrams, ADRs, sequence diagrams, NFRs, integration contracts. 
• Integration & API architecture 
• Lead REST API and integration design (contracts/DTOs, versioning/compatibility, idempotency, retries, sync/async patterns). 
• Ensure consistent approach to errors, validation, pagination/filtering, and backward compatibility across teams. 
• Data architecture (MS SQL Server) 
• Drive data design and evolution: domain modeling, schema changes/migrations, transactional boundaries. 
• Provide guidance on performance strategy: indexing, query tuning principles, data lifecycle/retention (where applicable). 
• Cloud & operational excellence (Azure) 
• Guide Azure component choices (API Management, App Service/Functions, Service Bus/Event Grid, Key Vault, Storage, identity). 
• Define operability requirements: logging/metrics/tracing, SLOs, alerting standards, incident reviews, reliability/performance improvements. 
• Leadership & collaboration 
• Lead solution/design reviews and align multiple teams around decisions and standards. 
• Mentor analysts and engineers in structured analysis, requirement quality, and architecture best practices. 
• Lead solution design from discovery to production: requirements, trade-offs, risk analysis, and delivery plan. 
• Define and govern architecture standards: API guidelines, error model, compatibility strategy, resiliency patterns, observability, security. 
• Drive API and integration architecture (REST contracts, DTOs, versioning/compatibility, sync/async patterns, idempotency, retries). 

• Run architecture/design reviews and mentor engineers/tech leads; align multiple teams on consistent implementation. 

   

Requirements (Must have) 

• 6+ years in software engineering/architecture, with significant experience in solution architecture for enterprise systems. 
• Strong experience in business and technical analysis: 
• requirements review and refinement, 
• translating processes into system behavior, 
• identifying edge cases and non-functional requirements, 
• writing clear solution proposals and decision records. 
• Solid understanding of distributed systems, integration patterns, and API design (REST, compatibility/versioning). 
• Strong Azure knowledge (service selection, runtime patterns, security/identity basics). 
• Strong MS SQL Server skills: schema/domain modeling, transactions/isolation basics, indexing and query performance principles, migrations. 
• Security fundamentals: OAuth2/OIDC, JWT, RBAC, secure-by-design mindset. 
• Excellent communication and documentation skills; ability to drive alignment across Product/BA/Engineering/QA/Operations. 
• Proven experience producing architecture documentation and leading cross-team technical decisions. 
• Event-driven architecture and Azure messaging (Service Bus/Event Grid), integration resilience patterns. 

• Docker and Kubernetes/AKS familiarity. 

   

AI / Automation — Nice to have 

• Experience integrating LLM/AI into business workflows (summarization, classification, knowledge search, assisted operations). 
• Understanding of RAG, embeddings, prompt design, guardrails, evaluation/quality metrics. 
• Exposure to Azure AI / Azure OpenAI and awareness of constraints (cost, latency, rate limits, data privacy). 
   

Soft Skills 

• You feel comfortable presenting and defending your solutions to senior technical executives (CTO, CIO, VP of Engineering, etc.) 
• The ability to parachute into an issue, assess the situation quickly, and present a plan for resolution. 
• You are naturally curious, seeking for ways to optimize and keeping an eye out for new frameworks and tools to enable our Engineers to develop world-class, reliable, performant software. 

We're looking to add an AI Product Engineer to the Subscribr team.

Why we're hiring: As Subscribr grows, our CTO wants to spend more time on the big-picture stuff—new features, strategic direction, and the projects that will 10x the product. 

To do that, we need someone who can own the day-to-day: shipping updates, squashing bugs, and keeping the platform running smoothly.

You'd be working alongside Chris (our badass Customer Success Manager) to prioritize what matters most to our users and then actually build it. 

What you'd be doing: 
Shipping regular feature updates and quality-of-life improvements Fixing bugs and handling technical issues as they come up 
Supporting our marketing team with funnel and landing page work

Working in our stack: PHP/Laravel, TypeScript, MySQL, Postgres 

Who we're looking for: 2+ years of full-stack experience 
You use AI coding tools (Claude Code, Cursor, Copilot, etc.) daily—not just experimenting, but actually shipping with them 
You're self-directed and don't need hand-holding 
You communicate clearly in writing (we're remote and async-first) 

The vibe: Small team. High autonomy. Real impact. No corporate nonsense.

Detail-Driven QA Wanted!
Softsich is a young and ambitious international product tech company that develops scalable B2B digital platforms. We’re on the lookout for a QA Engineer who’s ready to grow with us and shape high-load, data-driven solutions used by international partners.
We are looking for proactive people who think, analyze, and grow alongside the product. If this sounds like you, welcome.

Your key responsibilities will include:

• Perform functional, smoke, and regression testing of core flows
• Create well-documented bug reports in Jira (steps, expected/actual, severity/priority)
• Participate in QA meetings, release testing, and basic reporting
• Conduct UI/UX, cross-browser, and multi-resolution testing
• Test key user flows (registration, payments, withdrawals) with domain specifics (KYC, geo, currency)
• Create and maintain test cases and checklists in TestRail according to requirements
• Work within team processes and CI/CD workflows

It’s a match if you have:

 – 1+ year of experience in functional testing
 – Hands-on experience working with logs (Datadog, Splunk, Kibana, or similar tools)

 – Experience testing web and mobile applications

 – Experience in API testing

 – Working knowledge of Git, JIRA, and Confluence

 – Experience creating and maintaining test documentation (test plans, checklists, test cases)

 – Ability to write clear, well-structured bug reports

 – Solid understanding of QA processes and the SDLC (Software Development Life Cycle)

 – Level of English - intermediate

What we offer:
– Flexible schedule and remote format or offices in Warsaw/Kyiv — you choose.
– 24 paid vacation days, sick leaves, and health insurance (UA-based, other locations in progress).
– A supportive, friendly team where knowledge-sharing is part of the culture.
– Coverage for professional events and learning.
– Birthday greetings, team buildings, and warm human connection beyond work.
– Zero joules of energy to the aggressor state, its affiliated businesses, or partners.

 

Job Description

- 0.5ys+ of developing automated QA systems and associated test strategies;
- Good experience with Java 17 and higher, Spring framework.
- Experience working with business-critical customer-facing applications (user interfaces, APIs, and back-end services);
- Good understanding of object-oriented programming concepts;
- Experience with Selenium/Selenide/Selenoid
- Good understanding of API services automation testing (RestAssured).
- Experience with TestNG, Cucumber
- Experience with continuous integration tools, such as Jenkins;
- English verbal and written communication skills
- Shifted working hours 12pm till 8pm EEST timezone

Will be a plus but not a must:
- Typescript, Playwright

Job Responsibilities

- Work collaboratively with fellow SDETs to create a true end to end automation solutions
- Develop and contribute to the automated testing efforts for the QA team
- Design and build scalable, maintainable and flexible automation test framework.
- Investigate root cause of issues to assist with finding the most comprehensive and robust solutions.
- Collaborate closely with product, project and development teams to identify and resolve technical, business, and process related issues.

Department/Project Description

Founded in 2007, Magnite’s pioneering technology created a new model for the advertising industry. Today, our automated advertising platform is used by the world’s leading publishers and applications to transact with top brands around the globe enabling them to reach more than 1 billion consumers. Magnite operates the largest independent Display Advertising Exchange and Supply Side Platform that automates the buying and selling of Display Advertising across all formats (banner, video) on all devices (desktop browsers, mobile devices, billboards). Magnite auctions over 20 Billion Ads on a daily basis in real time in less than 1/2 of a second each. Magnite is a publicly traded company (NYSE: RUBI) headquartered in Los Angeles, California, USA.

PIN-UP Global is an international holding specializing in the development and implementation of advanced technologies, B2B solutions and innovative products. We provide certification and licensing of our products, providing customers and partners of the holding with high-quality and reliable solutions.

We are looking for a Lead Retention Manager to join our team!

Requirements:

- Strong English skills, with ability to write and communicate briefs and tasks;

- Experience in drafting and conducting marketing activities for player retention and return;

- Experience with client segmentation;

- Analytical mindset, ability to calculate the economics of promos as well as analyze the results;

- Knowledge of marketing metrics: MAU/DAU, LTV, ARPU, RR, GGR, NGR, etc.;

- Understanding of basic approaches to A/B testing and hypothesis testing to optimize marketing activities;

- Creativity;

Responsibilities:

- Build and lead a cross-functional team within the assigned region;

- Ensure team motivation, professional growth, and alignment with strategic regional goals;

- Analyze current performance metrics, set priorities, and develop plans to achieve regional KPIs;

- Plan monthly retention and reactivation campaigns, customized for regional market trends, cultural nuances, and the competitive landscape;

- Apply A/B testing and hypothesis testing to optimize promotional activities;

- To calculate predictions of the effectiveness of planned campaigns;

- Analyze post-campaign results, prepare detailed reports, and propose follow-up hypotheses;

- Develop and maintain player segmentation strategies to personalize marketing activities.

What are the conditions and bonuses?

🍀 An exciting and challenging job in a fast-growing product holding, the opportunity to be part of a multicultural team of top professionals in Development, Engineering and Architecture, Management, Operations, Marketing, etc;
🤝 Great working atmosphere with passionate IT experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed;
📍Beautiful offices in Limassol, Warsaw, Almaty, Yerevan work with comfort and enjoy the opportunity to build a network of connections with IT professionals day by day;
🧑‍💻 Laptop & all necessary equipment for work according to the ecosystem standards;
🏖 Paid vacations, personal events days, days off;
🫖 Paid sick leave;
👨‍⚕ Medical insurance;
💵 Referral program enjoy cooperation with your colleagues and get a bonus;
📚 Educational support by our L&D team: internal and external trainings and conferences, courses on Udemy;
🦄 Multiple internal activities: online platform with newsletters, quests, gamification, and presents for collecting bonuses, PIN-UP talks club for movie and book lovers, board games cozy evenings, special office days dedicated to holidays, etc;
🎳 Company events, team buildings.

Project Overview 

You will be joining a mature, data-driven digital health platform that helps users better understand their health, performance, and longevity through personalized insights. The product aggregates and processes large volumes of biometric, laboratory, and lifestyle data, transforming them into actionable recommendations using advanced analytics. 

From a technical perspective, this is a high-load, production-grade system with: 

• complex backend logic and data pipelines, 
• heavy API usage and third-party integrations, 
• strict requirements for reliability, performance, and scalability, 
• continuous growth in users, data volume, and feature set. 

The platform operates as a long-running SaaS product with a strong focus on backend architecture, data consistency, and system evolution rather than short-term feature delivery. 

Responsibilities 

• As a Senior Backend Developer, you will: 
• Design, develop, and maintain backend services written in Java 
• Participate in architecture design and contribute to long-term technical decisions 
• Build and evolve RESTful APIs used by web and mobile clients 
• Develop and support microservices in a distributed environment 
• Work with relational and NoSQL databases, optimizing queries and data models 
• Design scalable solutions for high-load and data-intensive workloads 
• Integrate third-party services and internal platform components 
• Ensure code quality through clean, maintainable, and well-tested code 
• Participate in code reviews, technical discussions, and system design sessions 
• Collaborate with frontend, QA, DevOps, and product teams 
• Contribute to performance optimization, reliability improvements, and technical debt reduction 

Requirements 

Must-have 

• 7+ years of professional backend development experience 
• Strong knowledge of Java (11 or higher) 
• Excellent understanding of OOP, design patterns, and clean architecture principles 
• Strong experience with Spring / Spring Boot and modern Java ecosystem 
• Solid experience with RESTful architecture and API design 
• Experience building and operating microservices 
• Experience with AWS or other cloud platforms (AWS preferred) 
• Experience with MySQL and/or PostgreSQL 
• Experience with NoSQL databases (e.g., MongoDB, DynamoDB, Redis) 
• Experience with Git and Jira 
• Understanding of backend scalability, performance tuning, and distributed systems 
• Familiarity with Docker, container-based deployment, and Linux environments 
• Experience working with high-load or data-intensive systems 
• Ability to write clean, readable, and maintainable code 
• English level: B2 (Upper-Intermediate) or higher 

Nice to have 

• Experience with message brokers (RabbitMQ, Kafka, or similar) 
• Experience with CI/CD tools (TeamCity, Jenkins, GitHub Actions, etc.) 
• Experience with Kubernetes or container orchestration 
• Experience working in Agile/Scrum environments 
• Knowledge of build tools (Maven or Gradle) 
• Basic knowledge of GNU/Linux and bash 

We're looking for an experienced Global B2B Lead to support our B2B direction. The role combines strategic thinking with hands-on execution. You'll work closely with product, tech, and marketing teams to integrate B2B strategy into our broader company vision while maintaining autonomy in driving international growth.

Key Responsibilities

• Develop and execute our global B2B strategy
• Drive new partner acquisition and sales across international markets
• Collaborate with product and tech teams to deliver new capabilities
• Conduct market research to identify new countries, segments, and product opportunities
• Analyze competitors and global trends in wellbeing and mental health
• Lead customer discovery through interviews, surveys, and pain point analysis
• Leverage research insights to inform strategic decision-making
• Implement and optimize CRM systems, analytics tools, and automation for B2B operations
• Build transparent reporting systems
• Ensure exceptional client experience throughout all customer journey stages
• Lead the B2B team

Requirements

• 5+ years of experience in B2B Business Development
• Proven track record of successfully entering international markets
• Strong understanding and hands-on experience with CRM systems, analytics, and sales processes
• Excellent negotiation skills and experience working with corporate clients
• Ability to balance strategic thinking with hands-on execution
• English proficiency at C1+ level
• Genuine passion and belief in advancing psychotherapy and wellbeing
• Self-organized, autonomous, and skilled at navigating complex challenges

Nice to have

• Experience in mental health, HR tech, or wellbeing sectors
• Experience managing distributed/remote teams
• Practical skills in customer and market research methodologies
• Spanish

What We Offer

• Competitive compensation and performance-based bonuses
• Professional development and learning&development budget
• Autonomy in decision making and idea implementation
• Direct access to founders and a cross-functional leadership team
• Remote-first culture with autonomy, rapid decision cycles, and a bias for action
• A mission that changes lives, backed by real traction and bold global ambitions
• Paid time off — 33 days per year (including public holidays);
• Paid mental health leave — 5 working days per year.

We are building one of the most powerful live-streaming platforms, already connecting 400K+ monthly active users through live events, interactive video chats, and real-time community experiences. Our mission is bold: bring joy, fight loneliness, and deliver safe, ad-free entertainment that keeps people coming back. This is a complex, fast-moving space, and we love it that way! Every idea counts here, and every release reaches a massive global audience. We are now expanding into Arab countries and Europe, enhancing content quality, and rolling out new features to keep users hooked. We are among the Top 5 streaming products in the US and rank in the Top 10 worldwide. Our next milestone: break into the global Top 5, and we are moving fast to make it happen. 

About the role: We are looking for a detail-oriented Manual QA Engineer (Android) to join our product team and ensure the high quality of our mobile applications. You will play a key role in validating new features, improving testing processes, and collaborating closely with developers and product managers throughout the entire development lifecycle. 

In this role, you will

• Perform manual backend testing using API tools and databases
• Conduct smoke, sanity, and regression testing of mobile applications
  Create and maintain test documentation, including test cases, bug reports, and checklists
• Participate in SCRUM ceremonies and QA activities across all stages of the SDLC
• Execute and validate A/B tests in collaboration with product and analytics teams
• Investigate, analyze, and report bugs with clear and actionable details
• Own functional testing of new features, acting as a QA feature owner

It’s all about you

• 2–3 years of experience in manual backend testing using API tools and databases
• Cross-platform testing experience (iOS & Android)
• Experience with proxy debugging tools (Charles, Fiddler, or Proxyman) 
• Experience with test management systems (Qase, TestRail, or similar)
• Experience working with databases

Would be a plus:

• Experience testing with MongoDB Compass
• Marketing and analytics testing experience
• Understanding or experience with A/B testing
• Experience collaborating with Product Support teams

What we offer

Care and support: 

• 20 paid vacation days, 15 sick days, and 6 additional days off for family events
• Up to 10 additional days off for public holidays
• 100% medical insurance coverage
• Sports and equipment reimbursement
• Team building events, corporate gifts, and stylish merch
• Financial and legal support
• Maternity recovery support allowance
• Position retention and support for those who join the Armed Forces of Ukraine

• Participation in social initiatives supporting Ukraine

   

Comfortable working environment:

• Work from our Kyiv hub or remotely with a flexible schedule 

• Modern equipment or depreciation of your own tools

   

Investment in your future:

• Collaborate with a highly-skilled team of Middle & Senior professionals, sharing practical cases and expertise in the social networking niche
• 70% of our heads and leads have grown into their roles here – so can you!
• Performance-oriented reviews and Individual Development Plans (IDPs)
• Reimbursement for professional courses and English classes
• Corporate library, book club, and knowledge-sharing events

Hiring process

• Intro call
• Technical interview
• Final interview
• Reference check
• Offer

Position Overview

We are seeking an experienced Crypto Media Buyer to join our performance marketing team full-time.

The ideal candidate has a proven track record of managing high-budget crypto campaigns, deep knowledge of Google Ads (Display) and Native platforms such as Taboola, Outbrain, and MGID, and hands-on experience with advanced cloaking strategies.

You will be responsible for driving crypto user acquisition, lead generation, and ROI optimization across Tier-1 and Tier-2 geos.

This is a senior role — only candidates with proven success in the crypto vertical will be considered.

Responsibilities

Plan, launch, and optimize crypto-focused campaigns across Google Ads (Display) and Native platforms (Taboola, Outbrain, MGID).

Apply and manage cloaking and compliance techniques to maximize campaign lifetime and reduce bans.

Scale crypto-related offers

Analyze performance data daily to improve CTR, CR, ROI, and CPA metrics.

Manage large budgets effectively, ensuring profitable scaling and optimal spend allocation.

Work closely with the creative team to test and refine ad creatives, landing pages, and funnels specifically for crypto audiences.

Requirements

Proven experience running Crypto campaigns with Google Ads (Display) and Taboola (required).

Deep understanding of Native ad platforms (Outbrain, MGID) and cloaking methods.

Strong analytical mindset and ability to interpret data for fast optimizations.

Self-driven, responsible, and capable of scaling multiple campaigns simultaneously.

Compensation

Competitive base salary.

Performance-based bonuses — top performers can earn up to $10,000/month in bonuses.

Required languages

English B2 - Upper Intermediate

About the project

We are a product-focused team building web applications with a strong emphasis on interactive UI, animations, and non-trivial frontend logic. These are not landing pages — we work on real products with active users and complex frontend challenges.

We are looking for a Strong Middle Frontend Developer who is confident with React and TypeScript and can independently take features from idea to production.

Requirements

Must-have

• Strong knowledge of React.js
  • understanding of component lifecycle and re-rendering
  • confident use of hooks (useMemo, useCallback, useRef, custom hooks)
     
• Experience with Redux Toolkit / RTK Query
  • store structure and state management
  • async data fetching, caching, and invalidation
  • Understanding what belongs in Redux vs local state
     
• Solid TypeScript skills
  • typing components, hooks, API responses
  • generics and utility types (Partial, Pick, Omit)
     
• Good knowledge of JavaScript (ES6+)
  • async/await, promises, closures
  • immutability principles
     
• Experience working with Lottie animations
  • controlling animations via state
  • Understanding performance limitations
     
• Git
  • feature branches
  • pull requests
  • participation in code reviews
     
• Experience with PixiJS, Canvas, or other graphics frameworks
  • Working with interactive scenes, coordinates, and animations
     

Experience in projects with game mechanics or complex visual UI
 

Nice to have

• Understanding of frontend architecture
  • UI decomposition
  • separation of concerns
  • reusable components and feature-based structure
     
• Experience working with REST APIs
  • error handling
  • loading/error / empty states
     
• Frontend performance optimization experience
  • React DevTools
  • memoization
  • lazy loading/code splitting
     

Responsibilities

• Develop and maintain interfaces using React + TypeScript
• Manage application state with Redux Toolkit / RTK Query
• Integrate and maintain APIs
• Implement animations and interactive UI elements
• Participate in frontend architecture decisions
• Collaborate with designers and backend developers

What we offer

• Competitive compensation: $2200–2500
• Fully remote work
• Healthy management culture (no micromanagement)
• Interesting technical challenges (not landing pages)
• Opportunity to grow and influence the product
  
   

Our family-style team is looking for a Senior Tech Lead to drive the architectural evolution of our core product. You will be the owner of the frontend architecture, responsible for rebuilding an existing system with a strong focus on scalability, performance, and maintainability. This is an Individual Contributor role with high ownership, requiring a blend of hands-on fast-paced coding and high-level frontend system design.

About the Project
The project drives growth and revenue for gaming companies through a collaborative GenAI platform that enables teams to create and scale content from a single prompt. The company is fast-growing and VC-backed (post-seed).

What We’re Looking For:

• Proven Track Record: 8+ years of experience building and evolving production systems from scratch for real users.
   
• Strong Frontend Expertise: Extensive experience with a modern React + TypeScript stack and best-in-class frontend libraries.
   
• Architectural Wisdom: Ability to evaluate trade-offs between performance, scalability, cost, and maintainability.
   
• Startup DNA: Prior experience in high-velocity startup environments is a must.
   
• AI Tooling: Proficient with Cursor or similar AI-powered IDEs. Experience with AI/LLM integrations is a plus.
   
• Production Excellence: Hands-on experience with monitoring, debugging, performance optimization, and handling production incidents.

The ideal candidate must demonstrate mastery in the following areas
 

Frontend (Primary Focus)

● Core: React, TypeScript (Non-negotiable), Vite, Pnpm.

● Rendering (Critical): Proven experience with Canvas rendering engines (Fabric.js, Konva.js, PixiJS, or raw HTML5 Canvas/WebGL). This is the #1 make-or-break skill for this role.

● State & Data: TanStack Query (React-Query): Advanced usage of queries and mutations for backend state management.

Routing: TanStack Router (preferred) or React Router.

● UI / UX System: Headless UI (Base UI / Shadcn), Storybook (+ Figma sync), advanced UI patterns (Infinite Grid)

Backend & Integration

● Languages: Python (strong knowledge required for BE-FE integration).

● API Design: OpenAPI Typescript (Type-safe BE requests), WebSockets, Short/Long Polling mechanisms, and Queue management.

● Databases: SQL/RDBMS (must), PostgreSQL / DynamoDB / Milvus (nice-to-have)

Testing & Monitoring

● Testing: Vitest, React Testing Library.

● Observability: Experience with Sentry/Coralogix or similar (Datadog, Grafana, Prometheus).

Working Style

• High Ownership: You are the owner of the frontend architecture.
• Methodology: Agile development, using Jira for ticket-based tracking.
• Communication: High English proficiency and a strong leadership mindset. You will work closely with the Team Lead, PM, and other developers in a highly collaborative environment.

What we offer

• A really promising long-lasting project (you will be proud of yourself)
• Sane and polite, but effective management
• The best corporate culture (according to our teammates' opinions)
• Competitive salary and other stuff
• Remote work, full time
• Becoming not just another team member, but a part of UKAD with unique value and long-term relationships.

Some facts about UKAD to help you make a decision
During 2022-2025, we only increased cooperation with our foreign partners.
UKAD combines benefits of family-sized companies, like no bureaucracy, easy access to the executives, with sustainable growth and vast opportunities.
Our company is strong enough to be not just a vendor but a tech partner. We can afford to choose customers that respect developers.
UKAD is one of the leading employers in Kharkiv, according to DOU.

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Full Remote (Ukraine/Europe) – B2B – Full-Time 

We are looking for a tenacious, passionate, creative, software-driven individual to guide the design and development of our payments software.

Responsibilities

• Contribute to architecture design for a new greenfield platform, including technology evaluation and library selection.
• Build core platform features from scratch and continuously enhance functionality with scalable, secure, and maintainable code.
• Integrate and optimize payment gateway solutions, ensuring reliability, security, and high-performance transaction flows.
• Implement monitoring, observability, and alerting systems; proactively identify and resolve performance or reliability issues (“firefighting” when needed).
• Own the full development lifecycle: design, build, test, deploy, monitor, and document solutions.
• Drive adherence to engineering best practices across programming standards, code quality, testing automation, and release processes.
• Actively participate in small, focused product cycles—managing your assigned projects, supporting teammates, and contributing to planning and delivery.
• Conduct code reviews, provide technical feedback, and shape product ideas and architectural decisions across the team.
• Collaborate cross-functionally to brainstorm ideas, define requirements, and support initiatives across the company.
• Contribute to hiring efforts by identifying and interviewing talented engineers to grow the product team.

Must-Have Technical Skills

• 5+ years of professional experience as a Full Stack Engineer.
• Strong proficiency in PHP (v8+) and solid experience with Symfony and API Platform frameworks.
• Proficiency in JavaScript/TypeScript (ES2025) and Vue 3 for frontend development.
• Practical experience with RESTful APIs, OpenAPI 3.1, and API documentation tools such as Redocly or AsyncAPI.
• Knowledge of ORM frameworks like Doctrine and experience building scalable backend systems.
• Strong understanding of relational and non-relational databases — Postgres, MySQL, Clickhouse, OpenSearch, or TigerBeetle.
• Experience with testing frameworks such as PHPUnit, Vitest, Jest, Cypress, Playwright, or Testing Library.
• Solid knowledge of message queues and caching systems (e.g., AWS SQS, RabbitMQ, Redis).
• Hands-on experience with Docker, Terraform, and AWS for cloud-based infrastructure.
• Proficiency with GitHub and CI/CD pipelines (Jenkins or equivalent).

Nice-to-Have 

• Experience with Go (Golang) — or interest in learning and contributing to Go-based services.
• Familiarity with Nx and pnpm for efficient package and monorepo management.
• Understanding of event-driven or microservice architectures.
• Experience working with Datadog for monitoring and observability.
• Background in FinTech, payments, or subscription-based platforms.

Soft Skills & Collaboration

• Excellent communication skills and ability to collaborate in a remote-first, asynchronous team environment.
• Strong sense of ownership and accountability — comfortable driving initiatives from idea to delivery.
• Ability to balance technical quality, product requirements, and business impact.
• Proactive mindset — identifies and implements improvements in architecture, developer experience, and performance.
• Eagerness to learn new technologies and contribute across both frontend and backend.

Cultural Fit

• Aligned with Rebilly’s mission to simplify and innovate within payments and subscription management.
• Thrives in an environment that values transparency, autonomy, and craftsmanship.
• Enjoys working in a distributed global team and contributing to open communication and collaboration.

Our tech stack

• Languages & Runtime: PHP 8.4, Go, TypeScript, JavaScript (ECMAScript 2025)
• Frontend: Vue 3, Vite, Pinia
• Backend Frameworks: Symfony, API Platform, Doctrine ORM
• API & Documentation: RESTful API, OpenAPI 3.1 (or later), Redocly, AsyncAPI
• Package Management: Composer, Nx, pnpm
• Testing: PHPUnit, Vitest, Jest, Cypress, Playwright, Testing Library
• Database: Postgres, MySQL, Clickhouse, OpenSearch, TigerBeetle
• Message Queues & Caching: AWS SQS, RabbitMQ, Redis
• Infrastructure & DevOps: Docker, Terraform, GitHub, AWS, Datadog, Jenkins (moving away)

Hiring process

1. Screening call 15-20 min
2. Small code challenge (unless you have extensive open source contributions)
3. Interview with the Product Team
4. Interview with the HR Director

Benefits

• Remote-first environment: Work from anywhere with flexible hours. Only limited overlap with CDT is required during onboarding and for one weekly meeting.
• Contractor-friendly: Team members outside the U.S. or Montreal are engaged as independent contractors with annually renewing agreements and access to the same benefits.
• Unlimited paid vacation (most take 4–7 weeks per year)
• Sabbatical and parental leave options. Time-off benefits begin after the 90-day probation period.
• Equipment: Rebilly provides a computer of your choice after background check completion and reimburses office accessories after 90 days.
• Professional development: Financial support for books, courses, and training; conference participation available after 90 days.
• Culture: High trust, autonomy, and transparency in a collaborative, globally distributed team.

About Rebilly

Rebilly is a payments orchestration platform. Rebilly’s comprehensive feature set is built to help our merchants get more of their customers from the order form to the thank you page, and more renewals paid. We took lessons learned from years of experience in the subscription business and millions of subscribers and applied them to make our payment system clever, flexible, and easy to use for our clients.

Interested? Let’s connect and discuss the details!