Jobs at Djinni

Project Description

Founded in 2007, Rubicon Project’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.

Job Description

• Experience building and operating large-scale, high-throughput, enterprise apps
• 2+ years working experience in server-side Scala
• Working experience with data processing systems (Hadoop, Hive, Kafka, Spark)
• A strong understanding of algorithms, data structures, and an ability to recognize the business and technical trade-offs between different
  solutions
• Expertise in threading and concurrency
• Experience with automated testing frameworks (TDD, Mocking, Unit/Functional/Integration)
• Experience with SQL queries (MySQL is a plus)
• Experience with development and CI tools (maven, git, Jenkins, Puppet, Crucible, Jira, Airflow python is a plus)
• Experience working in a Linux environment.
• Expertise building software in an agile development environment
• Demonstrated strong English language verbal and written communication skills
• Shifted working hours 12pm till 8pm EEST timezone

Job Responsibilities

• Write production-ready code and unit tests that meet both system and business requirements.
• Respond to feature requests, bug reports, performance issues, and ad-hoc questions.
• Work collaboratively with multiple teams to deliver quality software.
• Comfortable in multi-tasking and fast-pacing dev process.
• Support operation of services in production.

About Us 
We’re building an AI-driven hiring platform designed to transform how organizations evaluate talent. Our product delivers real-time candidate insights, identifies skill gaps, and recommends development pathways - while enabling recruiters to efficiently identify top performers through data-driven decision-making. 

About the Role 
We’re looking for a Psychometrician to join us as a part-time, ongoing consultant. This role combines strategic advisory with hands-on work, ensuring our assessment methodologies are scientifically sound, fair, and compliant with professional and legal standards. 
You’ll collaborate closely with product and engineering to validate and improve our AI-driven assessment systems. 

What You’ll Do 
 

• Evaluate and improve candidate assessment frameworks; 
• Design and run validation studies (criterion-related, construct, content validity); 
• Establish and monitor reliability metrics (e.g., internal consistency, test-retest); 
• Ensure AI-driven scoring aligns with psychometric best practices; 
• Audit algorithms for bias, fairness, and adverse impact; 
• Support calibration and continuous improvement of ranking models; 
• Ensure alignment with EEOC, APA, and SIOP standards; 
• Conduct adverse impact analyses and assess subgroup differences;  
• Recommend and implement bias mitigation strategies; 
• Define and track key measurement KPIs (validity, reliability, fairness); 
• Translate technical findings into clear, actionable insights; 
• Prepare documentation for audits, certification, and external validation. 
  
  Success Metrics 
• Assessment validity and reliability clearly established and documented; 
• Fairness and bias benchmarks defined, tracked, and improved over time; 
• Readiness for certification or third-party validation within agreed timelines. 

Core Requirements 
 

• Master’s or PhD in Psychometrics, Industrial-Organizational Psychology, Statistics, or a related field; 
• 5+ years of experience in assessment validation, ideally in hiring or talent assessment; 
• Strong knowledge of Item Response Theory (IRT) and/or Classical Test Theory (CTT); 
• Experience designing and executing validation studies; 
• Hands-on experience with adverse impact and fairness analysis; 
• Strong analytical and problem-solving skills; 
• Ability to work independently in a remote, flexible environment; 
• Clear communication skills, especially with non-technical stakeholders. 

Nice to Have 
 

• Experience with AI/ML-based hiring or assessment systems;  
• Background in HR tech or talent analytics; 
• Experience supporting audits, certification, or compliance processes;  
• Academic or research affiliation. 

Engagement Details 
 

• Part-time, ongoing consulting role; 
• Fully remote with flexible hours; 
• Mix of strategic advisory and hands-on work. 

About Logivations

Adidas, DHL, IKEA, Heineken, Mercedes, Swarovski — and 30,000+ other users — work with software built by Logivations. We develop cloud-native solutions using cutting-edge technologies to transform logistics and operations worldwide. Learn more at www.logivations.com.

The Role

We are looking for a detail-oriented Junior Data Annotator to join our AI/ML team in Lviv. Your work will directly contribute to the quality of machine learning models used by leading global companies. No programming background is required — what matters is sharp analytical thinking, precision, and the ability to follow structured guidelines consistently.

This is an excellent entry-level opportunity for someone eager to step into the IT world and grow within an international tech environment.

What You’ll Do

• Annotate and label datasets according to project-specific guidelines
• Review, validate, and correct annotations to ensure quality and consistency
• Identify edge cases and inconsistencies in data
• Collaborate with the data team to resolve ambiguities and refine processes
• Maintain productivity and quality metrics
• Adapt to evolving annotation techniques, tools, and project requirements

What You Bring

• English reading comprehension at B1 level or above
• High school diploma or equivalent or a student
• Basic to intermediate computer proficiency
• Strong attention to detail and analytical mindset
• Ability to work independently, manage time effectively, and meet deadlines
• Comfort with structured, rule-based, and repetitive tasks
• Clear communication skills for cross-functional collaboration

Nice to Have

• Prior experience in data annotation, data review, or a related field
• Ability to identify patterns and edge cases in data

What We Offer

• Decent compensation paid in EUR
• Hybrid schedule (office and remote)
• Direct impact on international AI/ML projects
• Professional growth through training and cross-functional collaboration

How to Apply

Please send your CV in English.

Our client is a fast-growing US-market tech startup in the entertainment and rewards space, currently rebuilding their product with a small founding team. They're looking for a part-time DevOps engineer who can jump in when needed and get things done without hand-holding.

No full-time workload, no long sprints. You'll be on call for roughly 10-15 hours per week – handling infrastructure tasks as they come up, keeping things running, and moving fast when something needs fixing. The key here is availability and a can-do attitude. If you need a detailed spec before touching anything, this isn't the right fit.
 

What you'll work with

• AWS – heavy usage across the board
• Microservices architecture
• Infrastructure as Code (Terraform or equivalent)
• CI/CD pipelines
   

What we're looking for

• 5+ years of hands-on DevOps experience
• Strong AWS expertise – this is non-negotiable
• Comfortable with microservices and IaC
• Responsive and available – when something needs attention, you're on it
• Startup mindset: scrappy, pragmatic, no red tape
   

Format

Part-time, hourly. ~10-15 hours per week. Fully remote.

We are building an R&D team in Kyiv and are looking for a UAV Design Engineer to join us in developing next-generation unmanned aerial systems.

In this role, you will contribute to both the improvement of existing UAV platforms and the development of new technical solutions—from concept design and system integration to testing and deployment. This is an opportunity to join the team at an early stage, influence key engineering decisions, and collaborate closely with both Ukrainian and international engineering teams.

Key Responsibilities

• Design, develop, and improve fixed-wing UAVs and VTOL platforms
• Design mechanical assemblies, propulsion systems, structural components, and payload integration solutions
• Create 3D models, engineering drawings, bills of materials (BOMs), and technical documentation
• Perform engineering analyses, including structural strength, weight and balance, mass properties, aerodynamics, and flight performance
• Integrate and configure onboard systems, avionics, and autopilot hardware
• Work with ArduPilot and Mission Planner for system configuration, log analysis, and diagnostics
• Participate in prototype assembly, ground testing, and flight testing
• Analyze test results, troubleshoot technical issues, and implement engineering improvements

• Collaborate closely with Electronics, Embedded, Software, and Production teams

   

Requirements

• Practical experience in Aerospace Engineering, Mechanical Engineering, Mechatronics, Robotics, or a related technical field
• Experience designing, developing, or integrating complex hardware products
• Proficiency with CAD software
• Experience preparing engineering documentation and manufacturing drawings
• Strong analytical and problem-solving skills with a practical engineering mindset
• Willingness to work hands-on with prototypes and participate in testing activities

• English proficiency sufficient to work with technical documentation and communicate within an international engineering environment

   

Nice to Have

• Experience working with UAVs or other aerospace systems
• Hands-on experience with ArduPilot, Mission Planner, or Pixhawk
• Understanding of aerodynamics, aircraft structures, and weight & balance principles
• Experience integrating and testing UAV platforms
• Experience working with composite materials or modern prototyping technologies

What We Offer

• The opportunity to work on advanced unmanned aerial systems deployed in real-world operational environments
• Participation in the full product development lifecycle—from concept and design through testing and deployment
• Official employment or cooperation as an independent contractor (FOP)
• Paid vacation and sick leave
• Private medical insurance
• Company-sponsored English language courses

About the Role

The Service Desk technician will be an integral part of the IT support team, providing technical support to internal and external customers. Service Desk technician will be responsible for handling first-level support requests, troubleshooting technical issues, and escalating more complex issues to senior team members. Service Desk technician will work closely with the Service Desk Coordinator to maintain the high quality of IT support services, while developing their technical skills and gaining valuable experience in the field.

Key responsibilities:

• Respond to incoming support requests via phone, email, and chat.
• Troubleshoot technical issues and provide solutions on time.
• Escalate more complex issues to senior team members as needed.
• Document all support interactions in the service management system.
• Maintain a high level of customer satisfaction by effectively communicating with customers and keeping them informed of the status of their requests.
• Participate in training and development opportunities to enhance technical skills.
• Assist in the maintenance of hardware and software inventory.
• Collaborate with team members to identify and resolve systemic issues.

Skills and experience you have:

• Bachelor’s degree in computer science, information technology, or a related field.
• 2-3 years of experience in computer hardware, software, and networking support.
• Good English communication skills, both verbal and written.
• Strong organizational and problem-solving skills.
• Ability to work well in a team environment and handle multiple tasks.
• Customer-focused approach to support and problem resolution.

You receive:

• Modern and international working environment.
• Challenging, engaging, and varied tasks.
• Personal and technical skills development with certified training.
• Competitive salary.
• Private health insurance.

Join us to develop SLAM, Visual-Inertial Odometry (VIO), and state estimation solutions for real-world robotics and navigation systems.

We're looking for an engineer with a strong mathematical background and extensive experience in classical and geometric computer vision. You'll independently design, prototype, and optimize computer vision algorithms, quickly turn research ideas into working solutions, and contribute to technical decisions across the development process.

Responsibilities:

• Design, develop, and optimize classical and geometric computer vision algorithms
• Work with feature tracking, matching, and geometric processing
• Develop and improve SLAM / VIO and state estimation pipeline components
• Integrate and test multi-sensor fusion systems (camera + IMU)
• Design and run experiments, evaluate algorithm performance
• Translate research papers into practical implementations
• Collaborate with cross-functional engineering teams

Required Qualifications:

• 5+ years of professional experience in computer vision, robotics, or a related field
• Deep understanding of linear algebra, statistics, and optimization methods
• Strong hands-on experience with classical and geometric computer vision
• Strong understanding of camera models, feature detection and tracking, geometry, and state estimation
• Proven experience developing SLAM, Visual-Inertial Odometry (VIO), or related localization systems
• Strong C++ development skills and experience with Linux
• Experience designing, implementing, and optimizing production-ready computer vision algorithms
• Ability to independently investigate research papers and implement state-of-the-art methods
• Experience working on R&D projects
• Degree in Computer Science, Mathematics, Physics, Engineering, or related STEM field

Nice to Have:

• Experience with Python
• Knowledge of neural networks and CV libraries/frameworks (OpenCV, NumPy, PyTorch, ONNX, Eigen, etc.)
• Experience with sensor fusion techniques
• Familiarity with embedded or real-time systems
• Robotics or navigation background

We are looking for a Computer Vision Engineer with strong experience in deep learning and production computer vision systems.

The role involves developing and bringing computer vision models into production, covering the full lifecycle from training and evaluation to deployment and system integration.

Responsibilities:

• Develop and improve Computer Vision and Machine Learning models
• Design and implement solutions for object detection, classification, segmentation, and tracking
• Work with large-scale image, video, and telemetry datasets
• Prepare, process, and maintain datasets for model training and evaluation
• Manage model training, validation, and testing workflows
• Optimize models for production deployment and real-time performance
• Integrate ML models into software services, applications, and APIs
• Analyze model performance and identify opportunities for quality improvement
• Participate in the design and architecture of AI components within the product ecosystem
• Collaborate closely with Backend, Infrastructure, Data, and Product Engineering teams
• Contribute to the development of MLOps practices and the end-to-end machine learning lifecycle.

Requirements:

• 3+ years of experience in computer vision
• High proficiency in Python
• Strong experience with deep learning and the PyTorch framework for computer vision tasks
• Research experience in computer vision with a focus on delivering results
• Experience working with thermal imaging data (thermal cameras, infrared imagery) would be an advantage
• Ability to work independently or within a small team, with a strong sense of ownership over results

Nice to Have:

• Experience with deep learning solutions for detection, tracking, image retrieval, and segmentation tasks
• Understanding of geometric computer vision principles
• Model optimization: quantization, pruning, neural network compilers
• Hands-on experience implementing low-level CV algorithms
• Experience with sensor fusion (IMU, magnetometer, GNSS, camera)
• Knowledge of C++

We are looking for a Functional Analyst for the Microsoft Dynamics 365 Finance and Operations platform to help transform the company’s financial and operational processes using modern technologies. You will join a cross-functional team working on the implementation and optimization of business solutions in the field of finance, logistics, and resource management. If you have experience working with D365 F&O and strive to influence strategic processes, this role is for you.
 

What you will do

• Gather information from and collaborate with different types of stakeholders (finance, procurement, warehouse, IT)
• Understand strategic business needs and plans for growth
• Gather and document detailed business requirements and transform them into user stories, including acceptance criteria
• Create, document, and maintain solution designs
• Execute standard and advanced configuration of the system, giving demos/prototypes to business users
• Prepare functional gap design documents
• Test new configurations and customizations — ensuring the provided functionality is in line with existing flows and satisfies stakeholders’ needs and requirements
• Organize key user validation process, support for end-to-end user acceptance testing
• Users’ consultancy and support; handle tickets as a second-level support engineer
• Follow the Change and Release management process
• Prepare release notes
• Manage tasks (AzureDevOps/Jira)
   

Your profile

• Upper-intermediate English
• >3 years’ experience with Microsoft Dynamics 365 Finance&Operations implementation and support
• Extensive experience in Microsoft Dynamics 365 Finance&Operations implementation projects
• Strong knowledge of standard D365 functionalities and most of the business processes listed below: 
  • Accounting policy (General Ledger, account structure, period close, etc.)
  • Accounts payable
  • Accounts receivable
  • Manufacturing accounting
  • Inventory accounting (closing and adjustment, inventory revaluation, inventory counting, inventory posting etc.)
  • Cost accounting
  • Tax accounting (understanding of business process flows)
  • Subscription billing (nice to have)
  • Electronic reporting
  • Experience in supply chain management flows is a plus
• Experience working in an integrated environment (and understanding of the approach of working with it)
• Experience with AzureDevops/Jira
• UML/BPMN knowledge is a plus
• Experience in preparing user stories, user manuals, and release notes
• Able to adapt requirements to both technical and business languages
• Experience with the preparation of different types of products and project documentation
• Experience with organizing validation activities (user acceptance testing)
• A technical background is an advantage
• Logical and analytical thinking 
• Independent research on solutions
• A critical thinker, detail-oriented, and self-organized

Insiders is a fast-growing IT company which employs about 200 people. Our company focused on providing innovative digital services and cutting-edge technologies to solve complex business challenges.

What we expect from the candidate:

• Experience in development using the Python programming language is required.
• Knowledge of frameworks such as Django and DRF is necessary.
• Understanding of the fundamental principles of object-oriented programming is essential.
• Proficiency in working with databases such as MySQL and PostgreSQL is important.
• Experience with version control systems like Git is mandatory.
• The candidate must demonstrate seriousness and the ability to collaborate effectively both in a team and independently.

What we offer:

• free study in our Corporate English Academy
• growth and development opportunities for young developers even if you have no commercial experience
• regular salary review (after the completion of each contract)
• provision of Apple equipment
• comfortable office with all amenities not far from the center (uninterrupted internet, generator, tea and coffee, pastries).
• timely payment of salaries.
• corporate events, teambuildings, etc.

• working on projects side by side with Senior developers, which will give you the opportunity to learn and develop.

   

  Feel free to contact us now; this could be the beginning of our collaboration! We will respond promptly upon receiving your resume.

Insiders is a fast-growing IT company which employs about 200 people. Our company focused on providing innovative digital services and cutting-edge technologies to solve complex business challenges.

Main responsibilities include:

• Searching for potential clients based on the requests of client companies
• Interacting with potential clients in chat mode according to company scripts
• Analyze sales productivity and suggest improvements

Requirements:

• Ability to work with social media and understanding of their basic principles
• Availability to work full-time in the office
• High level of proficiency in Ukrainian and English grammar (is a plus)
• Basic knowledge of the IT or outsourcing space (or eagerness to learn quickly)

What we offer:

• Bonuses after the first month of work in the company
• Free study in our Corporate English Academy
• An opportunity for growth and development even if you have no commercial experience
• Regular salary review 
• Comfortable office with all amenities not far from the center (uninterrupted internet, generator, tea and coffee).
• Timely payment of salaries.
• Corporate events, teambuildings, etc.

UI Designer for Mobile Games (Casual & Crash Games)

We are looking for a talented UI Designer to create modern, intuitive, and visually engaging user interfaces for our upcoming mobile casual and crash games.

The ideal candidate has experience designing game interfaces that are clean, responsive, and optimized for player engagement, retention, and monetization.

🎮 Project Overview

• Genre: Casual / Crash Games
• Platform: iOS & Android
• Style: Modern, colorful, polished, and mobile-first
• Engine: Unity

Our goal is to deliver a premium user experience with interfaces that are easy to navigate, visually appealing, and optimized for mobile gameplay.

🎯 Responsibilities

• Design complete game UI from concept to final assets
• Create intuitive user flows and navigation
• Design menus, HUDs, pop-ups, dialogs, and game screens
• Develop engaging shop, rewards, progression, and monetization interfaces
• Create high-quality icons, buttons, and UI elements
• Build responsive layouts for multiple mobile resolutions
• Prepare organized assets for implementation in Unity
• Collaborate closely with game designers, artists, and developers
• Iterate designs based on gameplay testing and feedback

🎨 Requirements

• Proven experience designing UI for mobile games
• Strong portfolio featuring casual, hyper-casual, puzzle, arcade, or crash games
• Excellent understanding of:
  • Mobile UX
  • Information hierarchy
  • Visual communication
  • Accessibility
  • Player engagement
• Ability to create visually appealing interfaces that remain clear during gameplay
• Strong sense of color, typography, spacing, and composition

🛠 Preferred Tools

• Figma
• Adobe Photoshop
• Adobe Illustrator
• Adobe XD
• Sketch
• Affinity Designer

🎲 Experience With

Experience designing interfaces for features such as:

• Main Menu
• HUD
• Shop
• Daily Rewards
• Missions
• Leaderboards
• Inventory
• Settings
• Progression Systems
• Battle Pass
• Events
• Tutorials
• Loading Screens
• Pop-ups and Offers

⭐ Nice to Have

• Experience with casino or crash games
• Knowledge of mobile game monetization and LiveOps
• Experience preparing UI assets for Unity
• Basic animation or motion design skills
• Understanding of responsive layouts and safe areas
• Experience working closely with game developers

📦 Deliverables

• UI wireframes
• High-fidelity UI screens
• UI Kit and Design System
• Icons and buttons
• HUD assets
• Shop and monetization screens
• Source files (Figma, PSD, AI, etc.)
• Organized export-ready assets

👤 Ideal Candidate

We are looking for someone who:

• Has a passion for mobile games
• Understands what makes game interfaces engaging and easy to use
• Can balance aesthetics with usability
• Works independently and communicates clearly
• Delivers polished, production-ready designs

📩 To Apply

Please include:

• Portfolio with mobile game UI projects
• Examples of casual, arcade, casino, or crash game interfaces
• Your preferred design tools
• Availability
• Hourly rate or fixed-price estimate

We are looking for a designer who can create high-quality, player-focused interfaces that enhance gameplay while supporting retention, monetization, and a seamless mobile experience.

We are a British—Ukrainian air defence tech company building distributed systems across the frontline. Our products are mission-critical, deeply technical solutions that directly strengthen national security. We’re now seeking a Technical Grant Writer who can understand our technology, articulate its impact, and secure funding through high-quality grant applications. This role requires analytical thinking, precision, and strong ownership of the entire grant lifecycle.

Our core value is impact for Ukraine: we build technology that makes a real difference on the actual battlefield, not in labs or on paper specs. We operate with a deep-tech mindset, pushing new technologies where engineering rigor truly matters. We value ownership and responsibility—people who execute, deliver, and stand behind the results.

Responsibilities

• Prepare high-quality grant applications: problem statements, technology descriptions, market analysis, and competitor research.
• Manage and support already submitted grant applications and ongoing grant projects through their lifecycle.
• Conduct competitive analysis and prepare SWOT assessments for our solutions.
• Proactively collaborate with engineering and product teams to collect technical inputs.
• Build project budgets and maintain basic financial tracking for grant activities.
• Prepare technical updates, progress reports, and presentations for grantors.
• Draft cooperation documents (including with military units) according to internal standards.
• Work daily with Google Docs, Sheets, Slides.

• Manage grant platforms, track deadlines, and ensure timely submissions.

   

Requirements

• Ability to clearly describe technological solutions, problem domains, and practical applications.
• Experience in market and competitor analysis; ability to prepare SWOT.
• Proactive communication skills and confidence working with technical experts.
• Experience preparing budgets and maintaining financial documentation for grants or projects.
• Background in preparing technical documentation and cooperation agreements.
• Strong skills in Google Docs/Sheets/Slides.

• English level B2+.

   

Nice to Have

• Technical background or experience working in tech companies.
• Experience managing grants (Brave1, Horizon, USAID, etc.).

• Understanding of defense or dual-use technologies, or readiness to learn quickly.

   

We Offer

• Meaningful work with direct impact on Ukraine’s air defence capabilities.
• Exposure to deep-tech engineering teams and innovative R&D processes.
• Professional growth in grant writing and grant management.
• Office in central Kyiv; hybrid format (priority for candidates who can work from the office when needed)

We're looking for DevOps with 5+ year of commercial experience to join our team.

We are an IT company and currently searching of proactive and communicable colleagues for the realization of all our big plans. We like to solve complex problems by focusing on the result and increasing the skills of our employees.

Currently we are looking for a DevOps Engineer.
If you like to solve different tasks and you want to grow as a developer, join us :)

Required skills:
- 5+ year of experience as DevOps Engineer;
- Experience with AWS;
- Experience in processes of releasing software using principles CI / CD with gitlab;
- Strong experience of administration of Linux (Unix);
- Knowledge of network technologies and network security principles (TCP / IP, Ethernet, NAT, routing, ACL);
- Experience with web-server (Nginx);
- Experience with databases SQL (Postgres RDS) and NoSQL (Clickhouse) and managing them;
- Experience with GitLab CI;
- Strong knowledge of containerization technologies, for example Docker;
- Strong problem solving skills.

Will be a plus:
- Experience with ELK / EFK and Prometheus;
- Experience with Rancher/Kubernetes;
- Experience with Terraform or Ansible;
- Upper-Intermediate English.

What company offers:
- Opportunity to work on interesting foreign projects in the team of professionals;
- Friendly style of management;
- 21 working days of paid vacations, paid sick leaves;
- Flexible working schedule (9 a.m.- 6 p.m. or 10 a.m.-7 p.m.);
- Remote mode of work.

Workload — Full-time
Duration — A couple of months to start with, and it has some extension potential.
Location — EU

Working in a staff augmentation model for a US-based AI-native marketing intelligence platform (connected marketing platform).

The client expects a couple of hours of overlap until 11:30 EST (5:30 PM CET). 

Bachelor's degree in Computer Science or related field 5+ years of professional backend software development experience Strong Python development experience Experience building REST APIs using FastAPI, Flask, or similar frameworks Strong understanding of HTTP, REST, authentication, and API design Experience integrating with relational databases and cloud data platforms Experience building secure, scalable backend applications Familiarity with AWS cloud services Experience using Git and modern CI/CD workflows Strong debugging and problem-solving skills Excellent written and verbal communication skills Preferred Qualifications Experience building AI-enabled applications Experience developing platform services or internal developer platforms Familiarity with MCP (Model Context Protocol) or AI tool integration patterns Experience with Snowflake or Databricks Experience working with event-driven architectures Familiarity with Redis or distributed caching Experience integrating with third-party SaaS platforms Experience working in media, advertising, or marketing technology Familiarity with agentic AI development workflows

Primary

Python 

FastAPI 

REST APIs 

PostgreSQL 

Redis 

AWS 

Docker 

Git 

Nice to Have

Snowflake 

Databricks 

OpenAI APIs 

MCP 

LangGraph / LangChain 

Kubernetes 

Terraform