Jobs at Djinni

Note: Please apply for this position only if you have proven experience working with crypto, blockchain, or wallet development.

The client is an innovative global fintech leader behind USDT, the world’s largest and most widely used stablecoin.

We are looking for a React Native Developer with solid experience in blockchain/crypto/ wallets to help us build secure applications.

Responsibilities

• Design, develop and maintain mobile applications using React Native (iOS & Android)
• Integrate applications with Bitcoin / Web3 / blockchain APIs and wallet backends
• Work with wallet functionality: addresses, balances, transactions, seed phrases, private keys (never exposing them insecurely)
• Implement mobile security best practices: secure storage, encryption, device integrity checks, protection from common attack vectors
• Collaborate with backend, security, and product teams to design features for decentralized and crypto-enabled products
• Participate in code reviews, architecture discussions, and technical decisions
• Write clean, testable, well-documented code

Requirements

• 4+ years of experience in in React Native
• Strong knowledge of TypeScript / JavaScript and the React ecosystem
• Proven experience with blockchain / crypto / wallet applications
• Experience working with Bitcoin, Web3, wallets, private keys, or similar technologies
• Good understanding of mobile security: secure storage, key management, encryption, secure communication
• Understanding of decentralized systems and concepts like public/private keys, transactions, addresses, signing, gas/fees, etc.
• Experience integrating REST/WebSocket APIs and working with real-time data
• Comfortable working in a remote, distributed team, communicating in English (spoken and written)

Nice to have

• Experience with hardware wallets or secure elements
• Knowledge of Layer 2 solutions, sidechains, or Lightning Network
• Experience with performance optimization and profiling for mobile apps
• Background in cryptography or security engineering

On behalf of our Client, a well-established financial institution from the Netherlands, Mobilunity is looking for a Full Stack developer for a longterm engagement.

Our Client is building a powerful new SaaS platform for premium restaurants to manage their own e-commerce, visibility, and retention—replacing tools like Shopify, Mailchimp, and Clavio with a tailored all-in-one solution.

To support this transformation, we’re seeking a hands-on Technical Lead who will architect solutions, guide developers, and collaborate deeply with product and business stakeholders. You’ll drive engineering decisions and ensure the delivery of scalable, clean, and reliable systems.

Key Responsibilities:

• Develop clean, scalable code using Python (Django) 70% and React/Next.js 30% or vice verse
• Collaborate with tech lead and product manager to refine implementation
• Take ownership of services end-to-end: from feature spec to delivery
• Work across backend and frontend, with focus flexibility (backend-leaning or frontend-leaning is OK)
• Embrace agile delivery and AI-powered workflows for speed and quality

Requirements:
 

• 5+ years in full-stack development
• Fluency in Python/Django, JavaScript/React, Next.js leaning to backend or frontend is OK
• Comfortable with PostgreSQL, REST APIs, GCP
• Proactive communication and ownership mindset
• Interest in customer experience, not just specs

Nice to Have:

• Experience in product-led SaaS environments
• Exposure to foodtech, marketplaces, or e-commerce products
• Use of AI-enhanced dev tools (Cursor, Copilot, Claude Code)

Tech Stack:

• Backend: Python, Django, FastAPI.
• Frontend: React, Next.js.
• DB: PostgreSQL.
• Cloud: GCP.
• Process: Agile, AI-enhanced workflows.
• Tools: Cursor/Claude Code, Slack, Figma.

Come on board, and let’s grow together!

📍 Location: Europe
💼 Cooperation type: Full-time
🧭 Work format: Remote

We’re seeking a Technical Support Specialist to support clients using our server-side tracking solutions. You’ll ensure high-quality customer support for thousands of users worldwide.

About us:
Stape is a global product-driven IT company and the #1 leader in the server-side tracking market. We’re building a powerful, technically complex product that simplifies server-side tracking for marketers and website owners. Our platform processes over 15 billion requests daily, helping improve tracking accuracy and data privacy for more than 200, 000 clients worldwide. We work closely with top partners, including Meta, Tiktok and Snapchat, to provide advanced tracking capabilities. 

We actively participate in industry-specific conferences as sponsors of events like MeasureCamp and Superweek.

Key tasks:

• Provide prompt and helpful support to clients via email and chat (no phone calls)
• Keep Help Center / Knowledge Base articles accurate and up to date
• Aim to resolve support tickets in one touch whenever possible
• Actively collaborate with team members to share insights and improve support processes

Your background:

• Understanding of network troubleshooting tools and techniques (e.g., browser DevTools)
• Ability to learn quickly and independently grasp new technical concepts
• Strong communication skills, including the ability to explain technical topics clearly and collaborate effectively with cross-functional teams
• Ability to analyze data, identify tracking issues, and find solutions
• Ability to work in a small team / startup environment
• English skills (Intermediate strong or higher)

Will be a plus:

• Previous experience in technical support or a similar client-facing technical role
• Understanding of Google Tag Manager (GTM), Google Analytics, Facebook Ads, and Google Ads
• Familiarity with Jira and Confluence or similar project/documentation tools

We offer:

• Industry Leader: Make a meaningful contribution to a globally recognized solution that shapes the future of the server-side tracking market.
• Flexibility: Enjoy a flexible work schedule with the freedom to choose where you work.
• Extended remote workspace setup: Experience the benefits of a fully equipped remote workspace, designed to elevate your productivity and create a comfortable work atmosphere.
• Collaborative culture: Engage in a friendly and open team environment that encourages initiative, creativity, and collaboration.
• Educational support: Invest in your self-development through a dedicated training and professional growth budget.
• Well-Being: Take advantage of 30 days of paid time off (20 standard days + 10 more to cover public holidays), Parental Leave, Anniversary days off, and Study Leave to support your recharge and maintain a balance between work and personal life.
• Health support: Feel secure with full coverage for Sick Leave and a dedicated medical insurance budget that prioritizes your health.

Excited to join us? Submit your CV and let’s get started!

The Role

This is a foundational leadership role, reporting directly to the CTO. We are looking for a hybrid leader to build and manage our Tenants team, which is responsible for the most critical component of our platform: Identity & Access Management.

Our management philosophy is unique. The Manager is the single owner of a business vertical, responsible for the Why (the product vision), the What (the features and roadmap), and the Who (the people management and hiring).

You will act as both the Product Manager and the Engineering Manager for all user and company identity services. You will be a highly technical leader, but your primary focus will be on product strategy and team execution, not on being the deepest technical expert. You will partner with a dedicated Senior Engineer (who will own the deep how—the technical architecture) to bring your product vision to life.

Your mission is to define the future of our identity platform, build your team, and lead the technical migration from our legacy codebase to a modern, secure, and MiCA-compliant architecture.

This is a full-time, remote leadership role.

What You'll Do

• Product Ownership (The "Why" & "What"):
  • Define and own the complete product vision, strategy, and roadmap for all identity and access management services.
  • Own the product backlog and prioritize all features related to:
    • User Management: Registration, KYC verification, authentication, 2-factor auth, password reset, session management, and user-level API keys.
    • Company Management: Company creation, KYB verification, member management, and company-level API keys.
    • Notifications: The core service for managing and delivering user notifications.
• People & Team Leadership (The "Who"):
  • Build Your Team: You will have the mandate to hire and build your team of full-stack engineers.
  • People Management: Lead, mentor, and grow your engineers through 1-on-1s, goal setting, and career development.
  • Define Culture: Establish a world-class engineering culture focused on security, reliability, and precision.
• Engineering Execution (The "How"):
  • Lead the planning and execution of the strategy for all identity-related systems.
  • In partnership with your Senior Engineer, guide the team in making high-level technical decisions for security and scalability.
  • Ensure your team delivers high-quality, secure, and reliable services using our stack (Node.js, Nest.js, React, PostgreSQL).
  • Collaborate with all other Managers to provide secure, seamless, and reliable identity services that the entire platform depends on.

What We're Looking For

• Hybrid Experience: 5+ years in software engineering with 2+ years in a leadership role (e.g., Engineering Manager, Team Lead, or a technical Product Manager).
• Domain Expertise: Direct, hands-on experience building and leading teams that manage identity, authentication (e.g., OAuth, JWT), or KYC/KYB systems is a huge advantage.
• Highly Technical: You must come from a strong engineering background (ideally with Node.js or similar) and be able to lead technical discussions on security, authentication, and database design.
• Product Mindset: You must have experience with product management fundamentals: creating roadmaps, managing backlogs, and making data-driven priority calls.
• People Leader: Demonstrable experience hiring, managing, and mentoring engineers.
• Legacy Systems Experience: You are not afraid of a brownfield project. You have experience planning and executing the migration of a critical legacy system.
• Communication: Excellent ability to articulate the "Why" to your team and report progress to the CTO.

What We Offer

• Foundational Leadership Role: A rare opportunity to build the most critical team (identity and security) from scratch, reporting directly to the CTO.
• Full Ownership: Complete autonomy over your product vertical (Why, What, Who).
• Clear Ambition: The chance to join a company with a clear goal of becoming the #1 crypto platform in the EU.
• Greenfield Culture, Brownfield Code: A rare chance to join a new company culture with no baggage, while solving the interesting technical challenges of a mature product.

The Role

We are looking for an Application Security Engineer to be a core technical pillar of our new Application Security team. This is a hands-on technical leadership role without people management responsibilities.

You will be the go-to person for security architecture, secure coding practices, and vulnerability management.

Your primary mission is to ensure the integrity of our core platforms—the Exchange and GRX Pay—by building automated security systems and defining the standards that protect our users' assets. You will analyze the existing infrastructure to understand its strengths and weaknesses, developing a clear strategy to harden and evolve it.

While this is a remote-first role, you should be based in a CET-adjacent timezone to collaborate effectively with colleagues. You can also expect to travel for periodic in-person team gatherings.

What You’ll Do

• Architect Secure Systems: Design, build, and maintain the security frameworks for our web and mobile applications, ensuring security is baked into the platform from the start.
• Audit and Hardening: Analyze the existing codebase and infrastructure to identify vulnerabilities. Develop and execute a strategy for incrementally refactoring legacy features into the new, secure platform.
• Secure the Exchange: Profile and optimize our applications to ensure a reliable and secure experience for the data-intensive Golden Ratio Exchange.
• Set the Standard: Define and enforce best practices for code quality, security testing, and automated vulnerability scanning (e.g., SAST, DAST) across all codebases.
• Technical Leadership: Act as the primary technical mentor for other engineers regarding secure development life cycles (SDLC). Solve the most complex challenges related to cryptography and data protection.
• Collaborate: Work closely with the Security Manager and Product teams to translate business needs into scalable, secure technical solutions.

What We’re Looking For

• Experience: 3+ years of professional experience in application security or software engineering with a heavy focus on security.
• Legacy Systems Experience: Demonstrable experience working with and securing large, existing codebases. You see complex legacy code as a challenge to be solved, not avoided.
• Technical Expertise: Expert-level knowledge of web and mobile security vulnerabilities (OWASP Top 10) and deep familiarity with TypeScript or React environments.
• Security Mindset: Experience building or maintaining shared security libraries or automated security tooling. You enjoy building tools that make other developers more productive and secure.
• Quality Focus: A deep commitment to code quality, automated testing, and integrating security into CI/CD pipelines.
• Location: Based in a timezone adjacent to Central European Time (CET) for optimal team collaboration.
• Communication: Excellent skills in articulating complex technical security concepts clearly to both technical and non-technical stakeholders.

What We Offer

• High-Impact Role: A unique opportunity to be a founding technical expert for application security, making key architectural decisions.
• Clear Ambition: The chance to join a company with a clear goal of becoming the #1 crypto platform in the EU.
• Greenfield Culture, Brownfield Code: A rare chance to join a new company culture with no baggage, while solving the interesting technical challenges of a mature product.
• Flexibility & Connection: A 100% remote-first role with periodic, all-expenses-paid team gatherings and a new hub in Ticino, Switzerland.

TRENDFORMER is an innovative product company because we don’t just make toys. At TRENDFORMER we’re changing the face of play.

Our professional and creative team has developed and successfully launched unique products internationally under the brands PIXIO (https://pixio.site/), HEY CLAY (https://hey-clay.com/) and VOXART (https://vox.art/). Today, our products are sold in more than 50 countries worldwide. These products are designed to spark creative potential, take children on a fantastic journey of discovery and crafting, and inspire learning through play.

We’re looking for experienced and talented AI Video Makers / AI Animators with a proven background in creating animated video content using modern neural networks and AI tools.

Your responsibilities:

• Create animated AI-driven video content, including short-form videos, scenes, and concept reels;
• Develop storyboards and animatics, defining visual logic, narrative structure, pacing, and rhythm;
• Define visual style and references, test different creative approaches, tools, and pipelines;
• Assemble and edit videos using AI-generated frames, animation, effects, transitions, and sound, ensuring strong storytelling and rhythm;
• Maintain high visual quality and consistency across all deliverables, including style cohesion, scene logic, and pacing;
• Collaborate closely with the team: receive feedback, iterate quickly, and deliver polished final results within deadlines.

Our ideal candidate has:

• 1+ years of experience in video creation, animation, or AI-driven video production;
• A strong showreel (required), with a clear focus on AI-generated and animated video content;
• Hands-on, consistent experience using AI and neural networks in a production pipeline;
• Strong artistic vision, including a sense of composition, rhythm, style, and visual cohesion;
• Excellent attention to detail, taste, and creative judgement;
• Ability to work independently, take responsibility for tasks, and manage time effectively under tight deadlines;
• Strong teamwork skills and a professional approach to feedback and revisions;
• Willingness to complete a test task.

Additional skills & tools (nice to have):

• Experience in motion design, VFX, compositing, or art direction;
• Character animation or stylisation experience;
• Skills in clean-up, upscaling, denoising, stabilisation, and flicker control;
• Basic sound design skills, including music selection and syncing with rhythm;
• Understanding of short-form content formats (TikTok, Reels, Shorts) and fast-paced editing language;
• Experience working with collaborative pipelines and tools (Notion, Figma, Google Drive, Frame.io, or similar);
• Hands-on experience with AI video generation tools, editing software (Premiere Pro, After Effects, DaVinci Resolve, CapCut, etc.), and post-production enhancement tools.

We offer:

• The opportunity to shape globally recognized products that kids and families love;
• Flexible work format (remote or hybrid);
• A supportive, creative, and forward-thinking team;
• Open-door culture and direct communication;
• Competitive salary (negotiable based on engagement format and experience).

How to Apply:

Please send:

• А short intro about yourself (2–5 sentences)
• Your showreel / portfolio
• A LinkedIn link or CV (optional)
• Confirmation that you are ready to complete a test task

If you love combining technology + strong artistic vision, can quickly assemble animated scenes, enjoy exploring new tools, and know how to work with feedback — we’d love to meet you!

Description

We are looking for a dynamic and results-driven Head of Affiliate or Team Lead of Affiliate managers!
This role is ideal for someone ready to take on the challenge of building an affiliate department with a clear vision for optimizing team efficiency and productivity.

We’re looking for a strategic leader who embraces challenges, makes confident decisions, and actively contributes to the company’s key business processes.

In return, we offer full support, all necessary resources, and an environment where your expertise and leadership will be truly valued.

Are you ready to rock the IGaming world together?

Join our in-house Acquisitions & Affiliate Marketing team for international Curacao-licensed B2C projects with our software solution.

Our team:

Our people are the company’s most valuable asset, so we strive to build businesses together with top talents on the market.
If you share our values, strive to create breakthrough projects, and seek professional growth, you are the one to join the team!

We are the match if you have:

• 2+ years of experience in a similar position;
• Experience in building and developing numerous Affiliate Programs;
• Understanding of the specifics of Affiliate Marketing: payment models, fraud, negotiations, technical knowledge of setting up campaigns;
• Understanding of main payment models;
• Experience in working with publishers, advertisers, and affiliate networks;
• Understanding of the product funnel and basic conversion metrics;
• Advanced level of English;
• Strong negotiation skills;
• Strong analytical background;
• Strong problem-solving skills;
• Business-oriented mindset.

It’s a plus if you have:

• Experience in the management of significant traffic volumes;
• Experience in the management of different Affiliate systems;
• Contacts of various kinds of partner networks, web admins, advertisers, and sites in the main segments of the CPA market.

What we offer:

• Competitive salary;
• Remote work in a flexible environment;
• 20 working days of paid vacation and education projects;
• Great product with our software solution.
• Opportunity for growth at professional levels, attending top industry events and conferences, and international workshops at our competence centers.

We’re looking for a senior, results-driven performance marketer who knows how to move the needle.

 

This role is about outcomes, not tasks.
Leads, conversions, ROI.

 

You will own the connection between Google Ads and high-converting websites, and you’ll be expected to turn traffic into real business results.

 

This is not a role for juniors, generalists, or people who need constant guidance.

 

What you’ll do:
 

• Build and optimize high-converting websites and landing pages
• Create, manage, and scale Google Ads campaigns focused on ROI
• Connect ads, websites, and tracking into one conversion system
• Take broad goals and turn them into clear execution plans
• Work independently without micromanagement

 

SEO and Google Business Profile optimization are a strong plus, but not mandatory at the start.

 

Who should apply

 

• You have proven experience driving real results, not vanity metrics
• You’ve managed meaningful Google Ads budgets with accountability
• You can take a wide, undefined task and execute it at a high level
• You work independently and don’t need hand-holding
• You know how to learn new tools or skills on your own when needed
• You think like an owner, not like a task executor

 

Please do NOT apply if:

 

• You are not confident in your ability to deliver results
• You need detailed instructions for every step
• You’re looking for a slow-paced or heavily managed role

 

What we offer

 

• Direct work with the founder
• Real responsibility and real impact
• A fast-growing service business across North America
• No agency work, no politics, no micromanagement

 

If you’re not sure you’re a top performer, this role is probably not for you.


If you are, we’d love to talk.

Experienced Microsoft.NET developer in building backend systems in Microsoft Azure. You will design and build services in a service oriented architecture.

What We Seek:

• Proven experience in designing and building APIs in ASP.NET (version 8.0 or higher)
• Proven experience with Entity Framework Core (version 8.0 or higher)
• Proven experience with Microsoft Azure
• At least 7 years of professional experience with C#
• At least 7 years of experience in building unit and integration tests
• Knowledge of service-oriented architecture (SOA) principles
• Knowledge of integration patterns and principles
• Knowledge of OAuth and OpenID Connect security protocols
• Adheres to SOLID principles
• At least 7 years of experience with Azure DevOps and Git

• Understanding of UML activity diagrams and sequence diagram.

   

A plus when has:

• Proven knowledge of the following Azure Platform Services; App Service, Service Bus, Key Vault, Storage (blob- and table storage), SQL Database, AI Search
• Proven knowledge of Azure DevOps yaml pipelines in combination with powershell and Azure deployment services
• Proven knowledge of T-SQL (SQL Server)
• Proven knowledge of the IDesign Method

What We Offer:

• Transparent bonus payment system
• Competitive salary with regular compensation reviews
• Opportunity to bring your ideas to life and lead the entire process
• 40-hour workweek with flexible scheduling
• Paid vacation and sick leave benefits
• Cozy office near the city center of Lviv

Responsibilities:

Design high-quality and user-friendly interfaces for web and mobile. Examples: UniFi Network app, UniFi Protect app, UniFi Design System, ui.com, store.ui.com, design.ui.com and more;

Embrace a design-first approach, pushing the boundaries of design by working on new and innovative ideas;

Co-work with key stakeholders including leadership, strategists, developers (FE/FS) and other designers;

Navigate an agile work environment, iterating quickly yet maintaining high quality;

Actively participate in mulitple projects across the company and voice your ideas on design improvements.

Requirements:

Expert level UX and UI design skills;

Minimum 5 years of experience designing interfaces for web and mobile

Highly proficient in Figma;

Strong interest in working hands-on with design, considering both user experience and UIs;

You take full ownership of your tasks and responsibilites;

Genuine passion for great UX;

Excellent communication skills and highly proficient in English (written and spoken);

Candidate needs to be in Kyiv or consider relocation. 

Will be a plus: 

Knowledge about networking & wireless technologies;

Experience with Adobe After Effects or any other animation tool for interactions;

Skilled in Cinema 4D or Blender.

What do we offer:

International work environment and work with global development teams;

Excellent work conditions in an A-Class office (Horizon Park Business Center);

Compensation package matching global standards;

Flexible work hours (as required);

Paid parking, courses, training, conferences and business trips;

Medical insurance;

Free lunches;

Work on leading IT products (software and hardware)

https://www.youtube.com/c/UbiquitiInc

About the company and the role

At Lendurai, we enable unmanned aerial vehicles (UAVs) to operate independently of global navigation satellite systems and radio control, using computer vision and machine learning. We partner with multiple UAV manufacturers to deliver cost effective capabilities to public sector and defence customers. Our core team has substantial experience in aerospace engineering and developing computer vision applications across Europe, including at companies like Bolt (EE), Open Cosmos (UK), and Starship Technologies (EE).

As software engineer for camera systems you will optimize EO/IR video for operators (ultra-low-latency, stable, and clear in the field) and tune the camera/ISP pipeline so computer vision applications stay robust and accurate.

What you will be doing

• System Architecture & Latency Control: Define the complete imaging pipeline architecture, from sensor to data output. Drive component selection and systems design to achieve a low end-to-end latency video pipeline, essential for direct First-Person View (FPV) operator control.
• Image Quality Ownership: Hold direct responsibility for the final image and video quality across autonomous and human operator flight modes. This includes selecting camera modules, defining ISP parameters, and tuning algorithms (e.g., exposure, color, sharpness, noise reduction) to provide the optimal visual experience for the human operator and autonomous control under varying light conditions.
• Sensor Integration: Select, integrate, and validate cameras (electro-optical, infra-red, etc.) into the drone platform. Manage the data paths to optimize for dual-use: minimal-latency streaming for operators and high quality data for autonomy.
• Driver & Firmware Optimization: Develop, debug, and optimize low-level firmware and embedded drivers (C/C++) that interface the camera hardware with the onboard computer. Focus tuning efforts on optimizing the camera output to balance low-latency and high fidelity.
• Environmental Hardening: Work with electronics and mechanical engineers on thermal management, vibration dampening, and EMI/RFI shielding to ensure system stability and image quality are maintained under demanding operating conditions.
• Autonomy Support: Collaborate across functions to provide reliable, stable, and geometrically calibrated camera data for computer vision applications like SLAM and object detection.

• Testing and Validation: Take part in rigorous ground and flight testing, utilizing specialized tools to measure end-to-end latency, throughput, and objective/subjective image quality metrics.

   

We are looking for

Required skills:

• Experience in camera systems design, development, and integration, with experience in embedded or robotics platforms.
• Demonstrated expertise in image quality tuning and calibration, including detailed knowledge of the ISP pipeline and image sensor operation.
• Strong proficiency in C/C++ low-level driver development.
• Proven experience in defining system architectures for ultra-low latency applications (e.g., real-time video streaming or gaming).
• Solid understanding of imaging interfaces (e.g., MIPI CSI-2) and embedded communication protocols relevant to UAVs.

Additional skills that are nice to have:

• Experience with libcamera or similar
• Direct experience with (digital) FPV or broadcast video systems
• Experience with flight control stacks (PX4/ArduPilot) and companion computer integration (NVIDIA Jetson, IMX8/9, Raspberry Pi etc).

• Knowledge of computer vision requirements (e.g., camera calibration models).

   

What we offer

• Monthly gross salary €3,500-6,000 based on experience and impact
• Stock options
• Ability to influence major technical decisions as an early hire
• A focus on outcomes

Join Lendurai to be part of the forefront of defence technology innovation.

About Tie

Tie is building the next generation of identity resolution and marketing intelligence. Our platform connects hundreds of millions of consumers across devices, browsers, and channels—without relying on cookies—to power higher deliverability, smarter targeting, and measurable revenue lift for modern marketing teams.

At Tie, AI is not a feature—it is a core execution advantage. We operate large-scale identity graphs, real-time scoring systems, and production ML pipelines that directly impact revenue, deliverability, and customer growth.

The Role

We are looking for a Senior AI / Machine Learning Engineer to design, build, and deploy production ML systems that sit at the heart of our identity graph and scoring platform. You will work at the intersection of machine learning, graph data, and real-time systems, owning models end to end—from feature engineering and training through deployment, monitoring, and iteration.

This role is highly hands-on and impact-driven. You will help define Tie’s ML architecture, ship models that operate at sub-second latency, and partner closely with platform engineering to ensure our AI systems scale reliably.

What You’ll Do

• Design and deploy production-grade ML models for identity resolution, propensity scoring, deliverability, and personalization
• Build and maintain feature pipelines across batch and real-time systems (BigQuery, streaming events, graph-derived features)
• Develop and optimize classification models (e.g., XGBoost, logistic regression) with strong handling of class imbalance and noisy labels
• Integrate ML models directly with graph databases to support real-time inference and identity scoring
• Own model lifecycle concerns: evaluation, monitoring, drift detection, retraining, and performance reporting
• Partner with engineering to expose models via low-latency APIs and scalable services
• Contribute to GPU-accelerated and large-scale data processing efforts as we push graph computation from hours to minutes
• Help shape ML best practices, tooling, and standards across the team

What You’ll Bring

Required Qualifications

• 5+ years of experience building and deploying machine learning systems in production
• Strong proficiency in Python for ML, data processing, and model serving
• Hands-on experience with feature engineering, model training, and evaluation for real-world datasets
• Ability to travel outside of Ukraine is a must
• Experience deploying ML models via APIs or services (e.g., FastAPI, containers, Kubernetes)
• Solid understanding of data modeling, SQL, and analytical workflows
• Experience working in a cloud environment (GCP, AWS, or equivalent)
• Experience with graph data, graph databases, or graph-based ML

• Familiarity with Neo4j, Cypher, or graph algorithms (community detection, entity resolution)

  Preferred / Bonus Experience

• Experience with XGBoost, tree-based models, or similar classical ML approaches
• Exposure to real-time or streaming systems (Kafka, Pub/Sub, event-driven architectures)
• Experience with MLOps tooling and practices (CI/CD for ML, monitoring, retraining pipelines)
• GPU or large-scale data processing experience (e.g., RAPIDS, CUDA, Spark, or similar)
• Domain experience in identity resolution, marketing technology, or email deliverability

Our Technology Stack

• ML & Data: Python, Pandas, Scikit-learn, XGBoost
• Graphs: Neo4j (Enterprise, GDS)
• Cloud: Google Cloud Platform (BigQuery, Vertex AI, Cloud Run, Pub/Sub)
• Infrastructure: Docker, Kubernetes, GitHub Actions
• APIs: FastAPI, REST-based inference services

What We Offer

• Competitive compensation, including salary, equity, and performance incentives
• Opportunity to work on core AI systems that directly impact revenue and product differentiation
• High ownership and autonomy in a senior, hands-on role
• Remote-first culture with a strong engineering and data focus
• Exposure to cutting-edge problems in identity resolution, graph ML, and real-time AI systems

• Clear growth path toward Staff / Principal IC roles

  What else:

• 4 weeks of paid vacation per year (flexible scheduling)
• Unlimited sick leave — we trust your judgment and care about your health
• US Bank Holidays off (American calendar)
• Remote-first culture and flexible working hours
• Flat structure, no micromanagement, and full ownership

• Opportunity to make a real impact during a critical growth phase

  Interview Process

• Recruitment Screening Call
• Initial call with Head of Data Science & AI and CTO  (30 min) in English
• Technical deep dive Interview (1,5h)  in English

• Optional test-task (paid)

  Why Join Us?

• High-impact delivery leadership role during a critical period
• Real ownership and autonomy
• Opportunity to shape delivery across the entire engineering organization
• Exposure to SaaS, data, integrations, automation, and platform work
• Collaboration with global teams and vendors
• A strong product with real scale and momentum

Why This Role Matters

At Tie, your work will not live in notebooks or experiments—it will power production systems used by real customers at scale. You will help define how AI is embedded into the company’s core platform and play a key role in making machine learning a durable competitive advantage.

Project Manager (Client Service, German market)

Matbor is a Germany-based digital marketing company operating across the European market.
We help Ukrainian local businesses attract hundreds of customers every month through digital marketing.

Over the past year, we have grown 5×, expanded our team to 20+ specialists, and continue to scale rapidly.

We are looking for an experienced Project Manager with agency background and German language proficiency who will become the main point of contact for our clients and ensure high service quality and long-term client loyalty.

Responsibilities

• Communicate with clients via chats and Zoom calls
• Collect client requests and translate them into clear tasks for product and marketing leads
• Coordinate work with internal product and production teams
• Control deadlines and task execution across projects
• Conduct monthly Zoom meetings with clients to present progress and results
• Ensure transparent communication, structured updates, and client satisfaction

Requirements

• German language proficiency — B2+ (spoken and written)
• Proven experience as a Project Manager in a marketing or digital agency
• Solid understanding of digital marketing tools and channels
• Experience working with task management tools and spreadsheets
• Strong communication, organizational, and coordination skills
• High level of responsibility, attention to detail, and structured thinking
• Ambition and willingness to grow professionally together with the company

Work Schedule

• Monday–Friday: 9:00–18:00 CET
• Saturday: client messages until 18:00 CET (no project work)
• Sunday: day off

Compensation

• First month (trial period): $1,500
• After trial: $1,500 base + performance bonus
  (total $2,000–2,200 depending on results)

At Lendurai, we enable unmanned aerial vehicles (UAVs) to operate independently of global navigation satellite systems and radio control, using computer vision and machine learning. We partner with multiple UAV manufacturers to deliver cost-effective capabilities to public sector and defence customers. Our team has deep experience in aerospace engineering, defence tech, and autonomous systems, with backgrounds at companies like Bolt (EE), Open Cosmos (UK), and Starship Technologies (EE).

As a control-systems engineer you will own the algorithms that keep our drones stable, responsive, and mission-capable without satellite guidance.

What you will be doing

• Design, implement, and tune real-time flight-control algorithms (attitude, position, and trajectory loops) targeted at GNSS-denied missions.
• Develop high-rate state-estimation and sensor-fusion pipelines that blend IMU, barometer, optical flow, VIO, and SLAM data.
• Port and optimise these pipelines on flight computers (Jetson Orin, Raspberry Pi CM5, i.MX 8M plus) under real-time constraints.
• Extend and customise PX4 or write bare-metal control stacks where needed.
• Create Software-in-the-Loop (SITL) and Hardware-in-the-Loop (HITL) test environments; iterate rapidly between simulations and field flights.

• Instrument test vehicles, run flight campaigns, and mine logs to improve robustness in wind, vibration, and electromagnetic interference.

   

We are looking for

Required skills:

• Proficiency in C++14 and C99 (or newer).
• Proficiency in Linux environments.
• Hands-on experience with Linux SBCs such as Raspberry Pi, BeagleBone, or similar.

Nice to have:

• Previous experience with embedded systems, especially STM32 microcontrollers.
• Hands-on experience with PX4, ArduPilot, or custom flight-control firmware.
• Practical knowledge of RTK-GPS, UWB, or vision-based localization frameworks.

Additional skills that are advantageous

• Control theory — PID, LQR, observers, pole/zero placement, robustness analysis.
• Sensor fusion & estimation — Kalman variants, factor graphs, Bayesian filtering.
• Computer vision — feature tracking, optical flow, homography, depth estimation.
• Digital comms & electronics — UART, SPI, I²C, CAN-FD, logic-analyzer debugging.

What we offer

• Monthly gross salary €3,500-6,000 based on experience and impact
• Stock options
• A mission-driven team that values ownership, curiosity, and a hands-on approach to solving defense challenges
• Early technical influence in a growing defense tech startup
• A focus on outcomes

Join Lendurai to be part of the forefront of defence technology innovation.

A fast-growing SaaS company, which is transforming the way tax, accounting, and audit firms operate, is looking for a Staff Backend Engineer (Python) to work remotely.

Founded in 2017, the company now has over 350 professionals. It is trusted by 10,000+ firms in 25+ countries. The all-in-one platform helps firms manage documents, payments, workflows, and communication more efficiently.

You will be responsible for the full cycle of launching a new direction, which includes:

• Selection and technical justification of the main Python framework
• Development, launch, and commissioning of the first services on Python
• Creation and documentation of development standards and processes for the Python stack
• Building CI/CD processes in close collaboration with the DevOps team
• Leading and implementing major technical initiatives (epics)
• Participating in the hiring, onboarding, and mentoring of future Python team members
• Active communication with business representatives

What the company offers: 30 days of vacation, paid sick leaves, training and development budget.

Requirements: experience working with Python, microservices, and AWS, experience making architectural and technical decisions.