Jobs at Djinni

Inception-1 is a product company that creates AI-driven B2C products designed to help people feel more connected and less alone. Our mission is to build meaningful digital experiences that blend technology with empathy — and to prove that technology can be both human and transformative.

We’re looking for a AI/ML Product Engineer who will be responsible for delivery of AI-driven features of our product (which are the core) 
We want you to be responsible for solving complex user’s problems – delivering ready-to-use features and final value to user
This is hands-on role which requires mix of business acumen, team management and sufficient technical expertise in implementing visual and conversational AI models
Ideal candidate would have either experience of own AI-first project development (no, chat-bot is not there…) or managing the team of ML engineers with clear business impact. 
Both cases imply experience with agentic coding and AI tools/ agent integration - eg. you built pipeline with comfy for your companion/ developed support agents’ chain on n8n/ built context prompting architecture for your assistant/ etc. 

Responsibilities:

• Own the end-to-end product lifecycle with a strong technical focus: discovery, specification, delivery, and iteration.
• Act as a bridge between business and engineering: translate product goals into clear technical requirements and vice versa.
• Define product requirements for AI-powered features (logic, constraints, data dependencies, edge cases).
• Work closely with engineers to shape system architecture, API contracts, data flows, and technical trade-offs.
• Design, run, and interpret A/B tests, including experiments impacting AI behavior, personalization, and monetization.
• Prioritize roadmap, features, and technical debt based on business impact, system limitations, and user value.
   

Requirements:

• 2+ years of experience as a Product Manager in multi-purpose AI-first products (eg. not only conversational module, but also voice/ image generation/ video/ OCR/ etc.).

OR

• Founder of AI-first startup with seed round closed.
• Strong technical background (engineering, computer science, or equivalent hands-on experience).
• Rapid prototyping or scripting skills to validate ideas quickly.
• Hands-on experience in implementation of AI features, at least – API services, self-developed multi-purpose agents, etc.
• Ability to reason about trade-offs between speed, quality, scalability, and technical complexity.
• Excellent ability to align technical and non-technical stakeholders.
   

Nice to Have:

• Experience with AIAI companionship, social discovery, chat, or personalization system.
• Ability to read code and participate in technical discussions (even without being the primary implementer).
• Experience with prompt-based systems, model evaluation, AI quality metrics.
   

What We Offer:

• Real ownership — full responsibility for a core AI product used by millions worldwide.
• Technical impact — shape how AI systems are designed, shipped, and scaled in production.
• Entrepreneurial ecosystem — part of Genesis, with access to resources, funding, and the option to launch your own startup.

On behalf of our client, we are looking for a Senior Java Engineer (VoIP) 

Requirements:

- 5+ years of experience with Java (Spring / Spring Boot)

- Strong expertise in WebRTC protocols and architecture

- Solid experience with VoIP / SIP / RTP / signaling servers

- Experience integrating backend systems with iOS & Android apps

- Strong understanding of real-time data streaming

- Experience with distributed systems & microservices architecture

- Hands-on experience with cloud platforms (AWS / GCP / Azure)

- Familiarity with Kafka / WebSockets / REST APIs

Nice to have:

- Experience with Twilio / Agora / Vonage or similar RTC platforms

- Experience with media servers (Kurento, Janus, FreeSWITCH, Asterisk)

- Knowledge of AI / voice processing / speech analytics

- Background in telecom or communication products

Company offers:

- Long-term employment with possibilities for professional growth

- Fully remote work

- Reasonably flexible schedule

- 15 days of paid vacation

- Regular performance reviews

We are looking for an experienced Unreal Engine Engineer to lead a small team of two Unreal developers and take full ownership of a production-stage Unreal Engine–based application used in e-commerce by real customers. This is a client-facing, high-impact product in which stability, visual quality, and performance directly affect the user experience.

The role combines hands-on Unreal development with technical leadership. You will also work as part of a cross-functional product team, collaborating closely with front-end and back-end engineers to ensure seamless integration between Unreal Engine and the rest of the application stack.

YOE: 5 years

Core Requirements:

• C++ Unreal development experience
• Experience compiling Unreal Engine from source
• Strong understanding of Unreal Engine architecture, Blueprints, and optimization for production use
• Proven ability to own and maintain a live Unreal Engine-based product
• Demonstrated experience leading or mentoring other developers
• Ability to make architectural and technical decisions that ensure stability, scalability, and performance
• Comfort working in a cross-functional team with front-end, back-end, and business stakeholders
• Oversee the coverage of existing and new functionalities with autotests
• Perforce version control
• Ukrainian/russian language is needed to communicate with the team
   

Nice to Have:

• Online game development and support 
• 3D modeling or visualization (3ds Max, Maya, Blender, etc.)
• Rendering engines (V-Ray, Corona, etc.)
• WebGL 
• Python or other scripting languages

• English language knowledge, sufficient for technical collaboration

   

Responsibilities:

• Lead and oversee the Unreal Engine development team (2 developers)
• Ensure stability, performance, and scalability of the production UE application
• Lead the effort to implement a public API for UE application
• Act as the Unreal Engine representative in a cross-functional product team
• Collaborate closely with front-end and back-end developers to align architecture and integrations
• Develop and improve tools for 3D asset assembly and scene management
• Work with content creators and artists to achieve optimal asset integration and visual fidelity
• Identify and automate repetitive or inefficient workflows
• Maintain and evolve the automated rendering and image production pipeline
• Continuously analyze and optimize memory usage, load times, and rendering performance
• Prototype and implement a new product hypothesis in collaboration with other product team members
• Provide technical feedback, documentation, and process improvements
• Automated application and asset update to the latest stable UE version on a yearly basis.
   

Expectations:

• Work remotely with consistent availability during core hours or from the office in Warsaw.
• Communicate proactively with the team and management about progress, blockers, and priorities
• Coordinate Unreal development efforts with front-end and back-end teams
• Manage personal and team workload effectively, ensuring delivery reliability
• Identify and drive improvements across technology, process, and pipeline
• Maintain transparency on issues and deadlines

We’re looking for a Technical (Python) Support Engineer to keep our production applications stable and fast during weekend shifts. You’ll handle incident triage, bug fixes, and small improvements while collaborating with the core team when escalation is needed.

Shift on Weekend  13:00-19:00 (GMT +3)
 

What you’ll do

• Maintain and troubleshoot Python/Django web applications
• Debug and optimize database performance (PostgreSQL)
• Operate core AWS services (EC2, S3)
• Diagnose issues with cross-functional teams and implement quick fixes
• Keep code changes clean, documented, and secure
• Handle end-user requests and provide technical assistance

What we’re looking for:

• English: Upper-Intermediate or higher
• Experience: 6+ months with Python & Django OR no commercial experience but:
  • Completed relevant courses/bootcamps (Python, Django, Databases, AWS)
  • Strong fundamentals (data types, HTTP/REST, Git, basic Linux, debugging)
  • Hands-on projects (pet projects, labs, internships) — GitHub links welcome
• Solid knowledge of PostgreSQL (or another relational DB)
• Basic familiarity with AWS (EC2, S3)
• Strong analytical and debugging skills
• Basic understanding of REST APIs and front-end basics (HTML, CSS, JavaScript)
• Clear communicator; comfortable working independently and in a team

Nice to have

• Docker, Kubernetes, and CI/CD pipelines
• Web application security best practices
• Experience in an Agile environment
   

What we offer

• Paid part-time weekend shifts
• Flexible choice of shift blocks
• Supportive team and transparent processes
• Fast track to real production experience

Hello.

We are looking for a Senior Node.js Developer 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.

• Own integrations with third-party APIs (telco/eSIM providers, payments, analytics, etc.) - abstraction layers, reliability, observability, edge cases, scale.
• Shape backend direction: architecture decisions, technical standards, and how we build/ship safely at speed.
• Enable rapid experimentation: implement backend changes for A/B tests and product iterations that directly impact conversion and retention.
• Build and maintain production-grade services: migrations, logging, alerts, uptime, and smooth releases.

What we’re looking for:

• 5+ years of backend with OOP experience
• 5+ years with Node.js + TypeScript
• 2+ years with NestJS
• 5+ years with MySQL / MariaDB / PostgreSQL
• Hands-on production experience: migrations, monitoring/logging, alerts, process managers (pm2/supervisor), incident mindset
• You work independently, communicate clearly, and take responsibility end-to-end
• At least intermediate English level (all work communication is in English)

Nice to have:

• Experience with high-load systems
• Experience supporting A/B testing and experimentation platforms/pipelines

Why to join us:

• Direct product impact: what you ship gets used immediately by real travelers.
• Ownership: you’re not “a contributor,” you’re a builder helping set the backend 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 real estate lead generation platform.

Every month, we generate 3,000–5,000 homeowner leads (people who fill out a form indicating potential interest in selling their property).

We sell these leads to real estate investors (wholesalers, fix & flip, buy & hold, lenders).

2. The problem we are solving

Right now, the system is inefficient in 3 major ways:

1. Low contact rate

• ~60% of leads do not answer investor calls
• Result: wasted acquisition cost, poor investor experience

2. Poor qualification

• Not all leads are real sellers
• Many are low intent, unmotivated, or just exploring

3. Wrong investor matching

• Leads are distributed without deep understanding of:
  • seller situation
  • best exit strategy

👉 Result:

• lower conversion rates
• refunds / dissatisfaction from investors
• lost revenue

3. What we want to build

We are building an:

AI-powered Lead Qualification & Routing System

This is not just an AI caller.

This is a full decision-making layer that:

1. Contacts the lead
2. Qualifies the seller
3. Scores intent
4. Matches them with the right type of investor

4. Your role

You will own the design and implementation of this system.

This includes both:

• technical architecture
• logic of how decisions are made

5. Core components you’ll build

1. AI Calling Agent (Voice SDR)

• Automatically calls new leads
• Handles conversations naturally
• Collects key seller information

Goal:
→ maximize contact rate & engagement

2. Qualification System

Extract and structure:

• Motivation (why sell?)
• Timeline (urgent vs future)
• Property condition
• Price expectations

Output:
→ structured data + qualification tags

3. Lead Scoring Model

Classify leads into:

• High intent (ready to sell)
• Medium intent (nurture)
• Low / no intent
• Invalid / spam

Goal:
→ increase quality of leads delivered to investors

4. Intelligent Lead Routing

Match each seller with the best investor type:

Examples:

• Distressed property → wholesaler
• Good condition → retail / fix & flip
• Financial need → lending / financing

Goal:
→ maximize deal probability per lead

5. Multi-Touch Follow-Up System

If the lead doesn’t respond:

• Retry calls (timing optimization)
• SMS follow-ups
• Voicemail drops

Goal:
→ extract maximum value from every lead

6. Optimization Layer

• A/B testing call scripts
• Improving prompts
• Tracking conversion metrics

Goal:
→ continuously improve performance

6. What success looks like

Within 2–3 months, we expect measurable improvements:

• Contact rate: +30–50%
• Qualified leads: +25%+
• Revenue per lead: +20–40%
• Lower refund rate from investors

7. What matters most

This role is NOT about:

• building “cool AI demos”
• experimenting without outcomes

This role IS about:

• driving revenue through better decisions
• improving conversion across the funnel
• building systems that actually work in production

8. What we expect from you

• Ability to design end-to-end systems (not just components)
• Strong understanding of LLM-based workflows
• Experience with conversational / voice AI (or strong ability to learn fast)
• Product thinking (conversion, funnels, trade-offs)
• Ownership mindset

9. First milestone (very important)

Your first goal:

Launch a working AI calling + qualification MVP
that improves contact rate and produces structured lead data.

Speed matters more than perfection.

Where technology vision meets scalable execution.

Softsich is a young and ambitious international product tech company that develops scalable B2B digital platforms. We’re on the lookout for an experienced Head of Technology who’s ready to grow with us and shape high-load, data-driven solutions used by international partners.

This role is about more than just managing engineering teams. You will define the technical vision, build scalable architecture, and ensure the reliability and security of complex distributed systems. Working closely with product leadership and engineering teams, you will guide technical strategy and help transform ambitious ideas into stable, high-performing platforms.

Your key responsibilities will include:

— Responsible for technical solutions, vision and roadmap for company projects
— Own the platform architecture and direction of technical department
— Contribute to company policies and make sure they are correctly implemented within the technology teams
— Standardize, implement, and enforce software development processes Scrum/Kanban, TDD, CI/CD, QA etc.
— Ensure team growth and motivation, including career progression and organizational structure; resolve internal team conflicts and ensure team transparency
— Deliver industry best standards of product stability and reliability and drive the technical vision to achieve product SLA
— Ensure the quality and correctness of developed software
— Be an effective communicator with other Business Units in the group as well as with 3rd party providers and clients
— Provide relevant technical/business issues and reports to the management
— Ensure all regulatory requirements are met and compliance procedures are followed
— Represent the technical teams and communicate technical challenges and opportunities to business management
— Communication with customers, present or potential, on the technical aspects
— Where necessary, get hands-on and assist the development and operations teams with addressing technical challenges or diagnosing operational incidents
— Manage incident responses and root cause analysis for major outages or breaches
— Identify potential risks and implement mitigation strategies
— Oversee cybersecurity measures, ensuring systems and data remain secure

It’s a match if you have:

— 8+ years of experience in software engineering in building and scaling complex platforms
— 3+ years of experience in an architecture leadership role or as a CTO
— Strong experience with Java or Node.js backend development and microservice architectures
— Solid understanding of modern frontend architecture, particularly React-based applications
— Deep knowledge of cloud infrastructure and services such as AWS or Azure
— Proven experience designing and operating high-load distributed systems with strong reliability and performance requirements
— Strong understanding of system architecture, API design, and integration patterns
— Experience implementing observability practices (monitoring, logging, tracing) and improving system reliability
— Experience working with DevOps practices and infrastructure (IaC)
— Ability to lead architecture discussions, technical decision-making, and engineering standards across multiple teams
— Strong communication skills and ability to collaborate with CIO, product leadership, and engineering teams

 

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.

Send over your CV now — we’d love to get to know you better!

We’re looking for a Finance Controller to take full ownership of financial operations in a fast-growing international business. This is a hands-on role from day one: you will build the function yourself, set up the systems, own the processes, and execute the work directly before any team exists around you.

We operate across multiple legal entities and currencies with significant transaction volume. The bar for accuracy, speed, and financial discipline is high. As the operation scales, you’ll have the opportunity to build and lead a finance team — but first, we need someone who can own it end-to-end.

Responsibilities

Invoicing & accounts

• Own the full invoicing process across all entities: issuing, tracking, reconciling, follow-ups
• Ensure invoices are accurate, on time, and properly recorded
• Manage AP/AR with zero tolerance for missed deadlines or errors

Payments & cash management

• Execute and oversee outgoing payments across entities and currencies
• Manage payment schedules and cash position
• Resolve payment issues quickly

Credit cards & financial services

• Own company credit cards: issuance, limits, reconciliation, policy
• Manage relationships with card providers and financial services vendors
• Improve tools/terms/fees when possible

P&L ownership

• Maintain and update P&L across all entities
• Track revenue, costs, margins with decision-ready detail
• Flag anomalies and variances early

Expense optimization

• Audit expenses regularly and find optimization opportunities
• Build/enforce an expense policy
• Reduce costs without slowing the business

Reporting & financial clarity

• Produce clear, accurate financial reports for leadership
• Keep documentation structured and audit-ready
• Work with external accountants/tax advisors and own the inputs/relationship

Systems & processes

• Choose, implement, and maintain finance tools
• Build SOPs for recurring processes so the function can scale
• Keep operations structured, documented, and resilient
   

Requirements

• 5+ years in a Finance Controller / Senior Finance / similar hands-on role
• Experience managing finances across multiple entities and currencies
• Strong command of USD operations, US finance, and international payments
• Proven P&L ownership and accurate reporting
• Experience with credit cards, payment providers, financial services vendors
• Hands-on operator (you do the work, not only oversee)
• Very detail-oriented, “zero mistakes” standard
• Proactive cost optimization mindset
• English C1+ (written and spoken)
• Able to choose and implement finance tools independently
   

Nice to have

• Built a finance function from scratch / early-stage experience
• Experience in fast-growing digital/online businesses
• Experience with banks, processors, payment rails
• Multi-entity consolidation / intercompany transactions exposure
   

What we offer

• Competitive salary + bonuses (per policy)
• 21 paid vacation days + 14 paid sick leaves
• Strong work-life balance
• Office in Warsaw available when you need it (snacks, coffee, etc.)
• Growth opportunities, multinational team environment, professional development support

On behalf of our client, we are looking for a Senior AI Engineer (GCP / Vertex AI) 

Requirements:

- 5+ years of experience in AI/ML engineering

- Strong hands-on experience with GCP (Vertex AI, BigQuery, Dataflow, Pub/Sub)

- Experience building GenAI / LLM solutions (Gemini, PaLM, etc.)

- Strong experience with RAG pipelines, embeddings, and vector search

- Solid Python skills + experience with ML frameworks (TensorFlow / PyTorch / JAX)

- Experience with cloud-native architectures (Cloud Run, GKE)

- Experience with LangChain / LlamaIndex or similar frameworks

- Understanding of data pipelines, feature engineering, and ML lifecycle

- Experience with CI/CD for ML and model deployment

- Strong communication skills and ability to work with enterprise stakeholders

Company offers:

- Long-term employment with possibilities for professional growth

- Fully remote work

- Reasonably flexible schedule

- 15 days of paid vacation

- Regular performance reviews

Are you ready to take ownership of full-cycle hiring in a high-growth FinTech environment? Join the PayDo team — a tight-knit, ambitious crew where collaboration and initiative are core values.
We’re growing fast — and building our in-house Talent Acquisition function from the ground up. We need a confident, results-oriented TA Specialist to help us shape how we hire and build the teams that drive our success.

About the Role

As a Middle–Senior TA Specialist, you’ll be responsible for managing end-to-end recruitment for a range of non-technical positions (from Junior to C-Level) across multiple departments: Customer Support, Compliance, Sales, Marketing, Finance, Legal, Product, and more.
We’re looking for someone mature, fast-thinking, and resourceful — someone who thrives in change, partners effectively with hiring managers, and genuinely cares about both process and results.
   

What You’ll Be Doing

• Lead full-cycle hiring processes: sourcing, screening, interviews, offers
• Act as a strategic hiring partner to managers — understand business needs and advise on recruitment strategies
• Source proactively, using creative and data-driven methods
• Assess candidates not just on skills, but culture fit and potential
• Be involved in refining our ATS setup — from process optimization to templates, reporting, and resource structuring
• Conduct reference checks with professionalism and care
• Actively contribute to process improvements and policy updates
• Take initiative on TA projects (shaping interview process standards and role-specific scorecards, leading internal workshops or knowledge-sharing sessions, helping define our employer brand across different markets)
• Stay aware of labor market trends in key regions (especially EMEA, UK, Malta)
• Serve as a mentor to junior recruiters: give feedback, share best practices, and support their growth into confident full-cycle specialists

What We’re Looking For

• 3+ years of experience in Talent Acquisition, with a focus on non-tech roles
• Experience recruiting across multiple regions in Europe;
• Solid track record in hiring for FinTech or financial sector roles;
• English level — Upper-Intermediate;
• Attention to detail in writing, outreach, and scheduling;
• Strong ownership mindset — taking initiative and solving problems independently
• Thrives in ambiguity, adaptable to changing priorities
• Comfortable working in a fast-paced, international environment

Become part of a global team redefining FinTech. Your expertise, passion, and ideas will shape the future of payments with PayDo!

Vacancy: Media Buyer (FB/Gambling) 🎰

Responsibilities:

• Driving traffic to Gambling offers (Any casino, any GEO) via Facebook/Instagram (proficiency with Meta Ads Manager is required).
• Independent research and testing of approaches, creating briefs for creative production, and designing creatives independently.
• Working with technical tools: Cloaking, Pixels, Keitaro, anti-detect browsers, and PWA.
• Managing various account types: Successfully working with "farmed" and agency accounts.
• Scaling traffic effectively.

Requirements:

• 9+ months of experience in the Gambling vertical; the most recent launch must be within the last 1.5 months.
• Deep understanding of Facebook metrics and traffic optimization skills.
• Portfolio/Case Studies: Readiness to demonstrate previous results and performance.
• Resilience: Ability to handle ad rejects and account bans.

What We Offer:

• Schedule: 5/2, 10-hour workday from 9:00 AM to 7:00 PM (Remote).
• Competitive Compensation: Fixed base of $800 (negotiable based on interview results) + performance bonuses.
• Trial Period: 2 weeks.
  Note: If the employee leaves voluntarily during the trial, no salary is paid. If the company terminates the contract due to failed performance, the salary is paid. No bonuses are provided during the trial period.
• Environment: The opportunity to work within a high-performing, professional team.

Fozzy Group is one of the largest trade industrial groups in Ukraine and one of the leading Ukrainian retailers, with over 700 outlets all around the country. It is also engaged in e-commerce, food processing & production, agricultural business, parcel delivery, logistics and banking.
 

The Foodtech team is looking for a Data Scientist to develop the Operational Analytics function for a fast growing food delivery business. In this role, you will focus on time series forecasting, regression modeling, simulation modeling, and end-to-end machine learning pipelines to support resource planning and operational decision-making.

You will be responsible for developing simulation-based models that serve as a foundation for a digital twin of operational processes, enabling scenario analysis, stress testing, and what-if simulations for capacity planning and operational optimization.

You will work closely with product, engineering, and operations teams to transform data into measurable business impact through production-ready ML and simulation solutions.
 

Job Responsibilities:

• Develop and implement time series forecasting models for resource planning (demand, capacity, couriers, delivery slots, operational load);
• Build regression and machine learning models to explain key drivers and support operational decisions;
• Apply a wide range of time series approaches from classical models (SARIMA, ETS, Prophet) and ML models (GB) to modern Deep Learning models (LSTM, Temporal CNNs, Transformers for TS);
• Design, build, and maintain end-to-end automated ML pipelines, deploy and operate models in production using AWS SageMaker;
• Orchestrate training and inference workflows with Apache Airflow;
• Analyze large-scale operational datasets and convert results into insights, forecasts, and actionable recommendations;
• Collaborate with product managers, engineers, and operations teams to define business problems and validate analytical solutions;
• Monitor model performance, forecast stability, and business impact over time.
   

Requirements:

• Bachelor’s Degree in Mathematics / Engineering / Computer Sciences / Quantitative Economics / Econometrics;
• Strong mathematical background in Linear algebra, Probability, Statistics & Optimization Techniques;
• At least 2 years working experience on Data Science;
• Experience of the full cycle of model implementation (data collection, model training and evaluation, model deployment and monitoring);
• Ability to work independently, proactively, and to decompose complex problems into actionable tasks.
   

Skills:

• Strong proficiency in Python with solid application of object-oriented programming (OOP) principles (modular design, reusable components, maintainable code);
• Solid experience in time series forecasting and regression modeling;
• Practical knowledge of:o Classical and ML forecasting techniques;
  o Statistical methods (hypothesis testing, confidence intervals, A/B testing);
• Advanced SQL skills (window functions, complex queries);
• Experience building automated ML pipelines;
• Understanding of MLOps principles (model versioning, monitoring, CI/CD for ML).
   

Nice to have:

• Hands-on experience with AWS SageMaker (training jobs, endpoints, model registry);
• Experience with Apache Airflow for data and ML workflow orchestration;
• Knowledge of Reporting and Business Intelligence Software (Power BI, Tableau);
• Experience working with large-scale production data systems.
   

What We Offer:

• Competitive salary;
• Professional & personal development opportunities;
• Being part of dynamic team of young & ambitious professionals;
• Corporate discounts for sport clubs and language courses;
• Medical insurance package.

PayDo, a fast-growing FinTech company, is looking for a passionate and results-oriented Head of Sales to drive our commercial strategy and accelerate growth across key business verticals. This is a high-impact leadership role focused on shaping a high-performance sales culture, expanding our B2B client base, and scaling our revenue—particularly within our core acquiring and payment processing services.

As a strategic leader, you will own the full sales lifecycle, inspire and develop a strong team, and work cross-functionally to ensure our go-to-market efforts align with broader company objectives.

Your regular tasks

• Lead, mentor, recruit and inspire a high-performing sales team setting clear goals and expectations
• Foster and ensure a dynamic and high-performing sales culture
• Own and drive the sales pipeline, by monitoring sales and lead generation managers’ KPIs and OKRs, ensuring consistent revenue growth, customer acquisition, and monthly sales targets.
• Actively engage in direct sales activities — performing cold outreach, nurturing key prospects, and driving new business opportunities yourself.
• Take ownership of the business customer lifecycle: cold outreach, negotiating, and closing
• Work with Marketing, Risk, Account Management and Product Development teams to implement initiatives
• Ensure that all sales activities comply with relevant regulatory requirements and company policies
• Ensure initiatives are reflective of the goals, and priorities of other company divisions as appropriate
• Recommend improvements to sales strategies based on data and competitor analysis
• Demonstrate ability to deliver results under pressure and adapt to changing business requirements; ability to plan, organise, and manage multiple priorities
• Maintain fluency with technology trends shaping the Fintech market
• Manage key referral partner relationships

Skills & expectations

• Minimum of 3 years of progressive experience in sales leadership roles, with a demonstrable track record of successfully building, mentoring, and managing high-performing sales teams
• Extensive experience in the full B2B sales lifecycle, from lead generation and negotiation to successful deal closure with business customers
• Prior experience within the FinTech industry, particularly at Electronic Money Institutions (EMI) or Payment Service Providers (PSPs)
• Strong analytical skills with experience in conducting market landscape analysis, identifying USPs, defining target audiences, and assessing competitors to inform sales strategies
• Expertise in setting, monitoring, and achieving sales KPIs and OKRs, coupled with experience in developing effective sales motivation and compensation plans
• Excellent collaboration skills, with a proven ability to work effectively with Marketing, Risk, Account Management, and Product Development teams to drive initiatives
• An advanced (C1) level of English proficiency, Native Ukrainian or Russian language

We work in a result-driven culture. You will fit in if you:

• Own your work with no excuses.
• Take initiative and act before being told.
• Deliver results that make a real impact.
• Solve problems quickly with practical solutions.

What we offer:

• Annual Learning & Development Budget – invest in your growth with dedicated funds for courses, training, and certifications.
• Regular Performance Reviews Based on KPIs – for your professional growth.
• Transparent career growth – with opportunities to achieve Lead roles within 1 year, Head roles in 2 years, and even C-level within 4 years, based on exceptional performance.
• Innovation Financial Rewards – share your ideas through our PayDo Ideas Hub and earn extra bonuses.
• Paid Vacation – with the flexibility to transfer unused days to the next year or receive compensation.
• Paid Sick Leave – available to cover medical needs and emergencies.
• Public Holidays tailored to your country’s calendar.
• Flexible Payout Options – PE accounts or popular e-wallets.

Become part of a global team redefining FinTech. Your expertise, passion, and ideas will shape the future of payments with PayDo!

About the Role:

We are building a strong support team for our US client — an online furniture store — and looking for a Customer Support Representative to deliver outstanding customer experience.

Requirements:

• Advanced (C1) spoken and written English
• 1+ year of experience in Customer Support/Customer Care, with mandatory phone-based communication experience
• Proven ability to confidently and clearly communicate with customers in real-time via phone calls
• Strong client-oriented mindset and focus on customer needs
• Ability to handle challenging situations calmly and effectively
• High attention to detail
• Availability to work evening shifts (15:00–24:00 Ukrainian time)

Key Responsibilities:

• Communicating with customers via phone, chat, and email
• Managing support tickets and ensuring timely resolution
• Handling calls with customers and vendors
• Providing high-quality service and maintaining customer satisfaction
• Collaborating closely with the US Customer Care team

We offer:

• A full-time job
• Paid vacation and sick leave
• Managing your taxes and accounting
• Optional benefits package that includes Health insurance, Gym membership, English courses, compensation of certification, courses, and training
• Creative and lively team of IT specialists, adequate management, and zero unnecessary bureaucracy

Data Science UA is a service company with strong data science and AI expertise. Our journey began in 2016 with uniting top AI talents and organizing the first Data Science tech conference in Kyiv. Over the past 9 years, we have diligently fostered one of the largest Data Science & AI communities in Europe.

About the client:
The company is a trailblazer in the world of data-driven advertising, known for its innovative approach to optimizing ad placements and campaign effectiveness through advanced analytics and machine learning techniques. Our mission is to revolutionize the advertising sector by enabling brands to reach their audiences more effectively.

About the role:
We are seeking an experienced and motivated Senior Data Scientist to join our dynamic team. The ideal candidate will have deep expertise in supervised learning, reinforcement learning, and optimization techniques. You will play a pivotal role in developing and implementing advanced machine learning models, driving actionable insights, and optimizing our advertising solutions.
This position is based in Ukraine. The team primarily works remotely, with occasional in-person meetings in the Kyiv or Lviv office.

Responsibilities:
- Develop and implement advanced supervised and reinforcement learning models to improve ad targeting and campaign performance.
- Collaborate with cross-functional teams to identify opportunities for leveraging machine learning and optimization techniques to solve business problems.
- Conduct extensive data analysis and feature engineering to prepare datasets for machine learning tasks.
- Apply optimization algorithms to enhance the effectiveness and efficiency of advertising campaigns.
- Evaluate and refine existing models to enhance their accuracy, efficiency, and scalability.
- Utilize statistical techniques and machine learning algorithms to analyze large and complex datasets.
- Communicate findings and recommendations effectively to both technical and non-technical stakeholders.
- Stay updated with the latest advancements in machine learning, reinforcement learning, and optimization techniques.
- Work with engineering teams to integrate models into production systems.
- Monitor, troubleshoot, and improve the performance of deployed models.
- Mentor junior data scientists and contribute to the continuous improvement of the data science practice within the company.

Requirements:
- 5+ years of experience in data science or machine learning roles, with a strong focus on supervised learning, reinforcement learning, and optimization techniques.
- Technical Skills:
- Proficiency in Python.
- Strong understanding of working with relational databases and SQL.
- Experience with machine learning libraries such as scikit-learn, TensorFlow, PyTorch, or similar.
- Deep understanding of statistical modeling and supervised learning algorithms (e.g., linear regression, logistic regression, decision trees, random forests, SVMs, gradient boosting, neural networks).
- Hands-on experience with reinforcement learning algorithms and frameworks like OpenAI Gym.
- Practical experience with optimization algorithms (linear, non-linear, combinatorial, etc.).
- Hands-on experience with data manipulation tools and libraries (e.g., pandas, NumPy).
- Familiarity with cloud services, specifically AWS, is a plus.
- Practical experience building and managing cloud-based ML pipelines using AWS services (e.g. SageMaker, Bedrock) is a plus.
- Education:
- Bachelor's or Master's degree in Computer Science, Statistics, Mathematics, Engineering, or a related field. A PhD is a plus.

Other Skills:
- Strong analytical and problem-solving skills.
- Excellent communication skills, with the ability to clearly articulate complex concepts to diverse audiences.
- Ability to work in a fast-paced environment and manage multiple priorities.
- Strong organizational skills and attention to detail.
- Ability to mentor and guide junior data scientists.
- Must be able to communicate with U.S.-based teams

The company offers:
- An opportunity to be at the forefront of advertising technology, impacting major marketing decisions.
- A collaborative, innovative environment where your contributions make a difference.
- The chance to work with a passionate team of data scientists, engineers, product managers, and designers.
- A culture that values learning, growth, and the pursuit of excellence.