Jobs

Role Summary
You will play the role of a semantic architect behind our AI‑powered Knowledge Graph supporting flavor and beverage innovation. This role is responsible for designing ontologies, SHACL validation frameworks, and YARRRML mapping rules that enable structured, high‑quality, machine‑interpretable R&D knowledge. Working closely with flavor scientists, product developers, data engineers, and AI teams, the Ontologist will translate complex scientific concepts into formal knowledge models, maintain consistent terminology and synonyms across domains, and ensure that all R&D data can be integrated, reasoned over, and leveraged for advanced discovery and formulation insights. This position is central to accelerating innovation, improving knowledge reuse, and enabling next‑generation intelligent tools for the R&D organization.

Key Responsibilities

1.Ontology Design & Semantic Modeling
Work with business stakeholders to identify and maintain a set of competency questions that the ontology must support.
Design, extend, and maintain ontologies covering ingredients, flavors, sensory attributes, formulations, human trials, regulatory concepts, and experimental processes.
Perform conceptual modeling with domain experts and translate concepts into formal RDF/OWL semantics.
2. SHACL Constraint and Validation Framework
Develop and maintain SHACL shapes to enforce data quality, structural validity, consistency rules, and business constraints across the Knowledge Graph.
Collaborate with data engineers to validate incoming data streams using SHACL rules and produce validation reports.
3. YARRRML & Semantic Mapping Design
Design and maintain YARRRML mapping rules to transform heterogeneous R&D datasets into RDF/Knowledge Graph structures.
Work with data engineering teams to operationalize RML/YARRRML pipelines within ingestion workflows.
4. Knowledge Graph Integration & Reasoning
Collaborate with the development team to integrate ontologies into reasoning engines, entity extraction workflows, and semantic search pipelines.
Support entity alignment, relationship modeling, and enrichment algorithms that drive flavor discovery.
5. Synonym, Terminology & Vocabulary Management
Build and maintain synonym dictionaries, alternative labels, multilingual terms, and context-specific vocabulary used by flavorists and product developers.
Ensure synonym management is consistently reflected across ontologies, SHACL shapes, and mapping rules.
Facilitate terminology alignment workshops with subject matter experts.
6. Governance, Versioning & Documentation
Establish and maintain ontology governance including version control, documentation, and change-management workflows.
Maintain high-quality documentation, competency questions, term definitions, and modeling rationales.
Required Qualification

Proven experience with RDF, RDFS, OWL, and SPARQL.
Hands-on work with ontology editors (e.g., Protégé, TopBraid Composer).
Strong understanding of SHACL, RML/YARRRML, or equivalent mapping frameworks.
Experience in semantic modeling and conceptual data design.
Experience in food science, chemistry, sensory science, or CPG R&D domains.

Preferred Qualifications

Degree in Knowledge Engineering, Information Science, Semantic Technologies, Computational Linguistics, or related fields.
Knowledge of industry ontologies or semantic standards (e.g., SKOS, SAREF, DOLCE, IOF).
Familiarity with graph databases (e.g., Neo4j, GraphDB, Stardog) and knowledge-graph architectures.

Delasport — Implementing Technological Solutions Here and Now.

Delasport is an iGaming Software company providing Sports Betting & Online Casino software and turnkey B2B solutions. Established in 2010, Delasport delivers a one-stop-shop solution for Sports Betting and Online Casino from a White-Label, with a full range of management services to a Plug&Play iFrame and a complete Turnkey. We are establishing an R&D center in Kyiv, and are looking for top talents to join our team.

This position requires full-time office work. Kyiv, 58 Yaroslavska str.

RESPONSIBILITIES
 

• Monitor compliance with information security and privacy policies at a technology company.
• Completing vendor security assessments and reviews.
• Reviewing security clauses in customer and vendor contracts.
• Providing, reviewing, and enhancing security training and awareness programs.
• Management of the organization’s technological risk assessments.
• Helping security leaders to identify and assess risks of the organization and developing strategies to manage and mitigate these risks.
• Develop and implement best practices for assessing and evaluating IT and security controls for the organization’s third-party businesses.
• Manage the penetration testing and technical risk assessments from end to end.
• Supporting the business with customer engagements, including attending customer calls and supporting our sales teams

REQUIREMENTS
 

• Minimum of 5 years of experience in a similar role in a technology/software/cloud organization
• Experience implementing and enforcing information security, regulatory, and privacy policies across the business.
• Acquaintance working with cyber security tools and products.
• Solid knowledge of information security principles and practices.
• Knowledge of risk management frameworks and industry compliance standards such as ISO 27001/ SOC2/ PCI DSS
• Excellent interpersonal skills and ability to work in a team with multiple interfaces.
• Experience working at SaaS provider company — an advantage.
• Fluent English
   

WHAT WE CAN OFFER YOU
 

• Modern office in Podil with an uninterruptible power supply and the Internet
• Personal time off (21 business days of paid vacation, paid days on special occasions, sick leaves, emergency days off)
• Public holidays
• Health and life insurance with our broker, available starting from the month following the employee’s start date with the company
• Modern technical equipment
• English courses with native speakers
• Ukraine-based educational programs
• Sports activities reimbursement
• Corporate entertainments
• Happy hours on Fridays
• Gig contract support

Delasport is an iGaming Software company providing Sports Betting & Online Casino software, and turnkey B2B solutions. Established in 2010, Delasport delivers a one-stop-shop solution of Sports Betting and Online Casino from a White-Label, with a full range of management services to a Plug&Play iFrame and a complete Turnkey. We are establishing an R&D centre in Kyiv, and are looking for top talents to join our team.

As a Senior PHP Engineer, you will dive into the complex but rewarding world of Sports and Online gaming, integrations, real-time calculation, scrapping data, and reporting, all at a massive scale.

TECHNOLOGY STACK: PHP 8, Symfony 6, Node.js, API REST, MongoDB, MySQL, Kafka, Docker, Kubernetes

RESPONSIBILITIES

• Participate in the design and decision-making of technical solution implementation
• Troubleshoot, analyze, provide workarounds and resolve various software problems
• Mentor and train new team members

REQUIREMENTS

• 5+ years experience in web application development
• Advanced architecture understanding both on theoretical and practical levels
• Deep knowledge of PHP programming
• Working experience with the Symfony framework
• Knowledge of the entire web stack and how each part impacts performance and reliability
• Exhaustive knowledge of database design and implementation
• Design and business insight
• Commitment to quality, performance, continuous improvement, and efficiency
• Analytical mindset and good problem-solving skills
• Experience in taking ownership
• Upper-intermediate level of English

NICE TO HAVE

• Gaming and sports industry experience
• NodeJS, Redis
• Experience in web application security and performance tune-up
• ELK, Kibana

WHAT WE CAN OFFER YOU

• Modern office in Podil with an uninterruptible power supply and the Internet
• Personal time off (21 business days of paid vacation, paid days on special occasions, sick leaves, emergency days off)
• Public holidays
• Health and life insurance with our broker, available starting from the month following the employee’s start date with the company
• Modern technical equipment
• English courses with native speakers
• Ukraine-based educational programs
• Sports activities reimbursement
• Corporate entertainments
• Happy hours on Fridays
• Gig contract support

We are looking for an QA Engineer (Manual + Automation) to join our team and help build and maintain modern education-focused digital products.

Requirements

• 3 years of QA experience (manual + automation)
• Hands-on Playwright + TypeScript experience; ability to write reliable automated tests
• Understanding of test automation patterns (POM or similar)
• Experience with CI/CD test execution
• Good Git knowledge (branches, PRs, basic code review); experience with Azure DevOps/GitHub/GitLab
• Basic familiarity with Angular or other modern front-end frameworks
• API testing experience; basic SQL and Linux command line knowledge
• Understanding of web technologies (HTTP, REST APIs, browser dev tools)
• English level B2 (Upper-Intermediate) or higher
  
  Responsibilities
• Perform manual testing (exploratory, regression), design test cases and checklists
• Analyze requirements, identify edge cases, investigate issues, and report defects clearly
• Develop and maintain automated tests in an existing framework (Playwright + TypeScript)
• Ensure tests are stable and maintainable (Page Object Model or similar patterns)
• Run and support automated tests in CI/CD pipelines; participate in Agile/Scrum ceremonies
• Test APIs using Postman (or similar) and validate data using basic SQL when needed
• Use AI tools to support QA and test automation tasks where applicable

Stack: Golang, AWS, MySQL, Docker, Microservices.

We are seeking an experienced Golang Developer to join our team of talented developers for a stable yet dynamic project.

As the Golang Developer, you will play an integral role in developing, maintaining, and refactoring the existing codebase of a multi-service product with complex logic. You will work closely with our experienced Backend team and use the latest stack.

About the project:

A stable enterprise product for creating marketing presentations, preparing accompanying materials, and developing sales cycle business assistants for global pharmaceutical companies such as AstraZeneca, Novartis, Pfizer, Veeva etc., and financial institutions like ING and Van Lanschot. Completely our code base, we have been developing it since 2015.

Our services are distributed across multiple Availability Zones, adhering to a service-oriented architecture. Since 2018, we have prioritized GraphQL, although we maintain comprehensive support for RESTful APIs. Our core API services are built on a diverse stack of programming languages, each chosen to optimize task performance. This stack includes a rapidly evolving Golang Core API, legacy Core API services in PHP (leveraging frameworks like Laravel and Yii2) for established business logic and data layer interactions, Node.js (utilizing both JavaScript and TypeScript), Python APIs, and .NET Core C# components.

We utilize a hybrid cloud infrastructure, harnessing the strengths of both AWS and GCP to meet our operational needs, and focus on Serverless. Our work also involves extensive integration with API partners, including Veeva, Salesforce, and a variety of others, to ensure a seamless and robust service ecosystem.

As a product with high-security requirements, we undergo regular penetration testing from auditors and client companies to ensure compliance with industry standards such as OWASP, SOC, and ISO.

Essentials:

- Advanced knowledge of Golang, with experience in web frameworks such as Gin or Echo.

- Proficiency in developing automated tests using frameworks like Go Testing, Ginkgo, etc.

- Expertise in performance monitoring, optimization techniques, and troubleshooting.

- Strong knowledge of SQL and an understanding of transactions.

- Understanding of OOP, design patterns, cryptography, algorithms, and data structures.

- Versatility and comprehension of how all aspects of a web project work together (frontend, backend, and the network layer).

- Basic System Design skills.

- English reading and writing: Upper Intermediate.

- English speaking: Lower Intermediate.

Nice-to-haves:

- Development experience with Node.js, PHP.

- Knowledge of serverless architectures, especially AWS.

- Experience in building APIs using REST and GraphQL.

- Understanding of EDA, Microservices, Hexagonal Architecture.

- Proficiency in Docker.

- Experience with CI/CD Pipelines.

- Familiarity with agile methodologies (Scrum, Kanban).

- Degree in Computer Science.

- English speaking: Upper Intermediate.

Benefits:

In addition to a great base salary, we offer:

1) Funding for conferences, co-working spaces, software licenses, and other work-related expenses

2) MacBook if you require one

3) Mobile devices if you are involved with mobile development projects

4) Flexible working hours and fully remote working without micromanagement

5) Modern technology stack

6) Time for open source development

7) Bonus at the end of the year

8) Paid study leave

9) Paid English language courses

10) 36 company-paid days off per annum

11) Access to educational streaming services like Pluralsight

12) Input on the development of the company

Our core values:

We are open-minded, humble, respectful, self-driven, and honest, which allows us to create an atmosphere of synergy. Our team is a great fit for those who value self-organization and are passionate about personal growth. If this resonates with you, we’d love to have you join the team.

We’re looking for our best C++ Developer with experience in multithreaded application development and excited about growing as a professional.

REQUIREMENTS:

• 5+ years of experience in multithreaded application development is a must
• 5+ years of hands-on experience developing multithreaded applications
• Deep, practical knowledge of C++
• Strong understanding of object-oriented programming, data structures, and algorithms
• Experience building and maintaining performance-critical systems
• Proven ability to deliver high-quality, production-ready software
   

Good to have:

• Experience with distributed application architectures
• Familiarity with formal software development processes and design notations such as UML
• Basic knowledge of Python and SQL
• Experience with Docker, Kubernetes, and Cassandra
• Development experience on Linux
• Experience with crash dump analysis and debugging production issues
• Familiarity with test-driven development (TDD) and regular code reviews

RESPONSIBILITIES:

• Design and develop robust, high-performance software solutions that meet business requirements
• Write clean, efficient, and maintainable C++ code with a strong focus on performance and reliability
• Ensure code quality through unit tests, automated integration tests, and system tests
• Maintain and enhance a real-time data delivery component running in production
• Participate actively in design discussions and contribute to architectural decisions
• Collaborate effectively as part of a cross-functional software development team

WE OFFER:

CQG provides a variety of benefits to enhance your personal and financial well-being. Employees and eligible dependents may participate in the following:

• Career and professional opportunities
• Competitive salary
• Employment in accordance with Ukrainian labor legislation
• Full-time employment, the ability to work remotely, as well as work in the office at will
• Full medical insurance for employee and family (dental insurance is included)
• Free lunch in the office
• Free English classes (2 times a week during working hours)
• Team buildings, conferences, and much more

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 role:
We are looking for a Python Software Engineer to join our team and help us build an on-premise software pipeline for real-time computer vision. The system ingests camera streams (primarily RTSP), stores frames in a shared data layer, runs CV/AI engines for preprocessing and inference, applies inference logic to produce decisions, and sends results to Database/Portal/Alerting/Control integrations.

Responsibilities:
- Build and maintain the Camera Module to reliably ingest RTSP streams, decode frames, and handle reconnect/keep-alive/packet loss.
- Implement the Shared Data layer for raw and processed frame exchange across processes with backpressure and safe lifecycle management.
- Integrate and operate CV/AI Engines in Python (preprocess, inference, postprocess) with configurable model loading and runtime selection.
- Develop the Inference Logic layer that orchestrates cropping, batching, filtering, classification, and decision output formatting.
- Implement connectors for Database & Portal (event persistence, evidence references) and for Alerting & Control (events/hooks for downstream automation).
- Ensure production readiness on Linux with observability (logs/metrics), health checks, and robust error handling.

Requirements:
Must-have:
- Strong Python, OOP, clean architecture, typing preferred.
- Solid experience with multiprocessing/concurrency (process lifecycle, IPC patterns, queues/shared memory).
- Comfortable working in Linux (systemd/service mindset, networking basics, profiling/debugging).
- Familiarity with CV/AI tooling, and some related Python libraries such as numpy, opencv (cv2), and torch or tensorflow.
- Ability to work with streaming data and reliability constraints (timeouts, retries, resource cleanup).
Should-have:
- Experience with RTSP/RTP streaming and common issues (UDP vs TCP interleaved, jitter, packet loss, camera timeouts).
- Performance optimization (profiling, memory management, zero-copy patterns).
- Exposure to inference acceleration stacks (TensorRT/OpenVINO) or GPU deployment.
- Experience designing event schemas and integration with DB/message queues.

We offer:
- Free English classes with a native speaker and external courses compensation;
- PE support by professional accountants;
- Medical insurance;
- Team-building events, conferences, meetups, and other activities;
- There are many other benefits you’ll find out at the interview.

We are looking for a DevOps Engineer to join our team!

Requirements:

- 3–4+ years of hands-on experience in information security, with a strong focus on network and cloud security.
 - Deep understanding of networking fundamentals: TCP/IP stack, routing (BGP/OSPF), VLANs, VPNs (IPsec, WireGuard, OpenVPN), firewalls (NGFW, IPS/IDS).
 - Proven experience with multi-cloud environments: AWS (VPC, Security Groups, NACLs, Network Firewall), GCP (VPC, Cloud Armor), OpenStack (Neutron networking, security groups).
 - Hands-on experience configuring and managing WAF solutions (Cloudflare WAF preferred: rule sets, whitelists/blacklists, rate limiting, bot mitigation, custom rules).
 - Knowledge of zero-trust principles, network micro-segmentation, and common network-level attacks (DDoS, MITM, ARP/DNS spoofing).
 - Strong Linux administration skills + scripting (Bash/Python) for operational tasks.
 - Experience with SIEM/log management tools (ELK Stack, Splunk, QRadar) for traffic/log analysis and event correlation.
Basic experience with Infrastructure as Code (Terraform) for provisioning secure cloud resources.

Will be plus:

- Hands-on experience securing Kubernetes clusters (EKS on AWS, GKE on GCP, or OpenStack-based Kubernetes): network policies, RBAC, secrets management, ingress security.
 - Deep expertise with Cloudflare (WAF, Zero Trust, Access, Workers) or similar (AWS WAF, GCP Cloud Armor, Akamai).
 - Relevant certifications: AWS Certified Security – Specialty, Google Professional Cloud Security Engineer, CCNP Security, CISSP, PCNSE.
 - Experience automating security tasks (Ansible for configuration management, Terraform modules for secure networking).
 - Familiarity with DevSecOps tools (Checkov for Terraform scanning, Trivy for containers, GitLab Security).
 - Prior work with OpenStack security components (Keystone, Barbican, Neutron extensions).

Soft Skills:

- Strong analytical thinking and ability to investigate complex incidents.
- High attention to detail (especially when tuning WAF rules, reviewing Terraform plans, or auditing cluster configs).
- Excellent communication skills — ability to explain technical concepts to non-technical stakeholders (developers, managers).
- Proactive mindset: identify risks in cloud/network setups and propose practical solutions.
- Comfortable with on-call rotations and handling operational incidents outside regular hours.

Responsibilities:
 - Design, implement, and maintain secure network and cloud architecture across AWS, GCP, and OpenStack.
 - Configure, tune, and monitor security tools: firewalls, WAF (especially Cloudflare — managing whitelists, rules, alerts), IPS/IDS.
 - Perform operational security tasks: traffic monitoring, anomaly detection, incident response, and network forensics.
 - Automate security configurations using IaC (Terraform for cloud resources and security policies; Ansible where applicable).
 - Secure and audit Kubernetes clusters (EKS/GKE): implement network policies, harden configurations, manage secrets.
 - Conduct regular audits of configurations (WAF whitelists, open ports, cloud security groups, OpenStack misconfigurations).
 - Review and audit Terraform code/modules for security best practices and compliance.
 - Collaborate with infrastructure, Dev, and platform teams to embed security into operations.
 - Develop and enforce zero-trust policies and network segmentation in multi-cloud environments.

Technical Stack:

 - Clouds: AWS (VPC, EKS, WAF, GuardDuty), GCP (VPC, GKE, Cloud Armor), OpenStack (Neutron, Magnum for Kubernetes).
 - Network/Security Tools: Cloudflare (WAF, Zero Trust), Palo Alto, Fortinet, Suricata, Zeek, Wireshark, tcpdump.
 - WAF & Protection: Cloudflare rule management (whitelists, rate limiting), AWS/GCP native WAF.
 - IaC & Automation: Terraform (AWS/GCP/OpenStack providers), Ansible.
 - Containers/Orchestration: Kubernetes (EKS/GKE), Helm, Cilium/Calico for advanced networking.
 - Monitoring & Logging: ELK Stack, Splunk, Prometheus/Grafana, NetFlow collectors.
 - Scripting: Python, Bash.

Our benefits to you:
☘️An exciting and challenging job in a fast-growing business group, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance and more

🤝🏻Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed

🧑🏻‍💻Modern corporate equipment based on macOS or Windows and additional equipment are provided

🏖Paid vacations, sick leave, personal events days, days off

💵Referral program — enjoy cooperation with your colleagues and get the bonus

📚Educational programs: regular internal training sessions, compensation for external education, attendance of specialized global conferences

🎯Rewards program for mentoring and coaching colleagues

🗣Free internal English courses

✈️In-house Travel Service

🦄Multiple internal activities: online platform for employees with quests, gamification, presents and news, clubs for movie / book / pets lovers and more

🎳Other benefits could be added based on your location

Data Science Lead

Full-time | Remote

About Us

ExpoPlatform is a UK-based product company that builds a SaaS platform for large-scale events, exhibitions, and online communities. We’re a distributed team — people work from the UK, Ukraine, Poland, Brazil, Pakistan, and other locations — so communication is mostly in English, though some internal teams also use Ukrainian. The platform itself is mature, high-load, and cloud-native — fully hosted on AWS. We are expanding our AI and data science capabilities and looking for a strong Data Science Lead to drive this direction.

About the Role

We’re looking for a Data Science Lead with a strong background in Data Science, Leadership and Operations to join our team. In this role, you will lead and execute AI-driven initiatives, build scalable data solutions, and shape the data science strategy. You will collaborate closely with product, engineering, and business teams, taking ownership of the full ML lifecycle — from data preparation and experimentation to deployment, monitoring, and retraining — while ensuring data quality, governance, and responsible AI practices.

Responsibilities

• Lead and execute AI and data science initiatives, including recommendation systems, analytics solutions, and intelligent automation
• Define and shape data science strategy aligned with business and product goals
• Own the full ML lifecycle: data preparation, experimentation, deployment, monitoring, and retraining
• Build and maintain high-performance REST APIs and asynchronous services using FastAPI
• Design and maintain scalable cloud-native solutions on AWS
• Collaborate with Product, Engineering, and business stakeholders to translate data insights into business value
• Ensure data quality, governance, and responsible AI practices
• Contribute to architectural and infrastructure decisions.

Requirements

• 4+ years of hands-on experience in Data Science / Applied Machine Learning
• Strong Python expertise (Python 3.13 as primary language)
• Solid experience with Pandas, NumPy, Scikit-Learn
• Strong experience with FastAPI for high-performance REST API development
• Production experience with AWS services, including AWS Lambda and serverless infrastructure
• Strong experience with Terraform for Infrastructure as Code (IaC) and infrastructure provisioning
• Experience working with analytical databases (ClickHouse is a strong advantage)
• Strong SQL skills and experience with large-scale data processing
• Experience leading projects and working cross-functionally
• English — Upper-Intermediate or higher.

Nice to Have

• Experience with LLMs (OpenAI, Amazon Bedrock, Hugging Face)
• Experience with vector databases
• Experience building AI-driven search or chatbot systems
• Understanding of agile methodologies and end-to-end data science project management

Technology Stack

• Python 3.13
• FastAPI
• AWS (including AWS Lambda)
• ClickHouse
• Terraform

What We Offer

• The opportunity to architect and build scalable, cloud-native systems 
• Work with cutting-edge AI and data science technologies
• Career growth within an international and fast-scaling SaaS company
• Competitive salary and long-term financial stability

• Paid vacation, sick leave, and public holidays
• Semi-flexible working hours (Mon–Fri, 8 hours)
• Fully remote and distributed team environment
• Free English courses and education budget.

About the Role
We are expanding our embedded development team and looking for an engineer with strong experience in Buildroot, CMake, Linux kernel, and BSP-level development. Our projects cover a wide range of platforms — from Linux-based devices to Android AOSP and RTOS — including work with E-Ink displays and various peripheral hardware.
 
Responsibilities
• Integrate different SoCs at the system level of embedded operating systems.
• Port and adapt drivers to Linux OS, providing APIs for the application layer.
• Modify and maintain build systems (Buildroot, CMake).
• Configure and build Linux kernel and bootloaders.
• Debug low-level issues and ensure hardware–software integration.
• Collaborate closely with hardware and software teams.
• (Optional) Support RTOS-based MCU firmware.
 
Requirements
• Knowledge of C/C++ (Java is a plus).
• Experience with Buildroot, CMake (Kconfig is a plus).
• Understanding of the Linux kernel, multithreading principles, and init process.
• Proficiency with version control systems (Git, Mercurial).
• Ability to debug system-level and driver-related issues.
• Knowledge of TCP/IP stack.
• Understanding of interprocess communication (IPC) principles.
• Ability to read hardware documentation and schematics.
 
Nice to Have
• Experience in Linux driver development.
• Familiarity with hardware interfaces: I2C, SPI, UART, USB, Ethernet.
• Scripting skills in Python/Bash.
• Knowledge of Android AOSP/NDK.
• Experience with Wi-Fi, Bluetooth, Audio subsystems.
 
Soft Skills
• Strong problem-solving & attention to detail.
• Ownership and responsibility.
• Team player.
 
• Education & Language
Bachelor’s degree in Engineering or a related field.
English: Intermediate+.
 
 

Job Description

Primary Backend Skills:

• Framework: Deep expertise in the .NET 8 Framework, specifically for building Web APIs.
• API Development: Solid experience creating and managing endpoints using GraphQL for .NET.
• Data Access: Proficiency with Entity Framework for ORM.
• Testing: Skills in writing unit tests for backend services using XUnit.
• API Documentation: Experience using Swashbuckle to generate and maintain Swagger documentation.

Cloud & DevOps Experience:

• Platform: In-depth knowledge of the Azure platform is required.
• Containerization: Experience with Docker for creating and managing containerized applications. 
• Hands-on experience deploying microservices to Azure Container Apps.
• Understanding of hosting frontend applications on Azure Static Web App.
• Experience managing and interacting with Azure SQL Database.
• Experience with NoSQL databases, specifically Cosmos DB.
• Core Azure Services: Managing customer identity with Azure AD B2C, Using Application Insights for service monitoring, Experience with Azure API Management.

Preferred, Not Required Skills

• Familiarity with our modern frontend stack is a strong plus. This includes: Core Technologies: React, Typescript, and Material UI. State Management & Data: Redux toolkit and Apollo Client for GraphQL.
• Tooling: Experience with Vite as a build tool, Vitest for testing, and Zod for schema validation.
• Navigation: Understanding of React Router.
• Version Control: Proficiency with Git and GitHub.
• Collaboration: Experience working with Jira and Confluence.
• API Testing: Hands-on experience with Postman, particularly within a team workspace.
• Development Environment: Experience with development tools like Eslint, Prettify (Prettier), and Husky is beneficial. While the choice of IDE is flexible, experience with
• Visual Studio Code is preferred.

Job Responsibilities

Working in Scrum team and perform function of senior software developer doing software modules architecture, design, development, unit and integration testing and deployment.

Department/Project Description

Developting a cloud-based platform designed for managing latest generation of IoT devices.

The core part of the system provides a centralized location for remotely monitoring, upgrading, and configuring devices. It also offers an application marketplace, allowing users to deploy and customize applications for their devices.

At the moment it is extensively extending with services that deal with telemetry provided by the connected devices and services. These services are designed in two forms. First is the predefined set of data connectors and visualisation widgets, and the second is a framework that let customers to design own connectors and widgets.

Skill Category

.NET

Keyskills - Must Have

• .NET
• Azure
• GraphQL
• Entity Framework
• xUnit
• MS SQL Server

Job Description

Required Hard Skills (The "Must-Haves")

Expert C/C++: 3+ years of experience in strictly kernel-mode software development.

WinDbg Mastery: Ability to perform "post-mortem" debugging without symbols for third-party conflicts, and live kernel debugging using VMWare/Hyper-V/KDNET. You must be comfortable analyzing stack traces, register states, and trap frames.

Windows Internal Knowledge: Deep understanding of:

IRQLs (Interrupt Request Levels) and DPC/Dispatcher mechanics.

Memory Management (Paged vs. Non-Paged pool, MDLs).

Synchronization primitives (Spinlocks, Mutexes, Pushlocks).

File System Filters: Proven experience with the Filter Manager Model (FltMgr) and Minifilter drivers (FltRegisterFilter, Pre/Post operation callbacks).

EDR/Security Driver Experience: Familiarity with:

ObCallbacks (ObRegisterCallbacks).

Process/Thread/Image Load Notify routines (PsSetCreateProcessNotifyRoutineEx, etc.).

Avoiding deadlocks when injecting logic into high-frequency system paths.

Preferred Skills (The "Nice-to-Haves")
Reverse Engineering: Proficiency with IDA Pro or Ghidra to analyze potential conflicts with third-party drivers (e.g., Antivirus conflicts causing the crash).

x64 Assembly: Ability to read disassembly to pinpoint the exact instruction causing the fault when source lines are ambiguous.

WHQL/WHCP: Experience with the Windows Hardware Compatibility Program signing process (in case the fix requires re-certification).

Job Responsibilities

Key Responsibilities
Crash Dump Analysis: Perform deep-dive analysis of kernel memory dumps (Minidumps and Complete Memory Dumps) to identify the root cause of the crash (e.g., race conditions, stack overflows, invalid memory access, IRQL violations).

Reproduction & Isolation: Design stress tests and verification procedures to reliably reproduce the BSOD in a controlled environment using tools like Driver Verifier and specific load-testing scripts.

Code Review & Remediation: Audit the existing C/C++ driver code (specifically Minifilter callbacks and process notification routines) for thread safety, proper lock usage (Spinlocks/ERESOURCE), and memory handling.

Patch Implementation: Implement robust fixes for the identified issues, ensuring zero regression in driver performance or security efficacy.

Validation: Verify fixes using Microsoft Driver Verifier and HLK (Hardware Lab Kit) basics to ensure stability under high stress.

Department/Project Description

We are an endpoint security company looking for an expert-level Windows Kernel Driver Specialist to assist our engineering team in resolving a critical stability issue. Our Endpoint Detection and Response (EDR) agent is currently experiencing sporadic Blue Screen of Death (BSOD) crashes in the field.

We need an experienced debugger - someone who lives in WinDbg, understands the Windows Memory Manager inside out, and has specific experience improving the stability of file system minifilters and callback-heavy security drivers.

Skill Category

C++

Keyskills - Must Have

• C
• C++
• Kernel
• VM Ware
• Hyper-V
• Windows Programming

Job Description

• 5+ years of experience in native Android development
• Proven experience delivering production-ready Android apps
• Hands-on with Jetpack Compose, MVVM architecture, and Android Jetpack libraries
• Familiarity with REST API integration and dependency injection (Hilt/Dagger)
• Ability to take full ownership of features and their quality
• Optional: experience with wearables, IoT devices, and startup environments

Job Responsibilities

• Develop a greenfield native Android application from design to production
• Collaborate closely with one existing engineer and client team
• Apply modern Android best practices to ensure scalable, maintainable code
• Implement triggers, backend integration, and AI-first features using AI-assisted tools
• Recreate and maintain all automation and scheduled tasks (triggers)
• Ensure high-quality code, test coverage, and performance

Department/Project Description

Product: Smartwatch application for kids

Platform: Native Android

Stage: Greenfield development, designs and requirements already prepared

Team: Client’s internal engineering team + you as lead Android developer

Skill Category

Mobile

Keyskills - Must Have

• Mobile (Android/iOS)
• Kotlin
• Copilot

Responsibilities:

• Launch, manage, and scale Google UAC campaigns for gambling/betting offers
• Perform market & competitor research (apps, creatives, GEOs, funnels)
• Select and validate GEOs, offers, and KPIs
• Work with black-hat / grey-hat app setups (WebView, cloaked flows, funnels)
• Define and test creative angles & USPs
• Analyze performance metrics: CPI, CPA, ROAS, retention
• Optimize campaigns based on data and hypotheses
• Collaborate with designers, developers, and tracking specialists
• Control budgets and ensure profitability
• Prepare reports and insights for scaling decisions

Requirements:

• Proven experience with Google UAC (mandatory)
• Experience in gambling / betting / casino vertical
• Strong understanding of black-hat traffic methods
• Ability to work with WebView / PWA / wrapper apps
• Experience with tracking systems and postbacks
• Solid knowledge of KPIs, funnels, and attribution
• Ability to independently manage campaigns end-to-end
• Data-driven mindset and strong analytical skills

• Analytical and performance-driven 
• Adaptable to fast-paced environments 
• Proactive problem-solver
• Effective cross-team communicator
• Ability to test hypotheses quickly and iterate fast

Will be a plus:

• Experience in complex verticals (gambling/Forex/Nutra/Dating)

About the Project
Our client is a fast-growing AdTech company developing digital advertising solutions for the streaming ecosystem.

The company has built proprietary technology that integrates via API with leading platforms such as Twitch, enabling interactive ad formats directly within live streams. The solution increases audience engagement and creates new monetization opportunities for advertisers and streamers.

As part of its expansion, the company is looking for a Sales Manager to drive client acquisition, build partnerships, and support revenue growth in key markets.

Responsibilities

• Actively search for and acquire new B2B advertisers;
• Work with brands and agencies in the iGaming industry;
• Build and manage your own sales pipeline;
• Conduct negotiations and close deals;
• Develop partnerships with streamers and platforms;
• Contribute to sales strategy and market expansion.

Requirements

• Proven B2B sales experience in iGaming (AdTech experience is a strong advantage);
• Experience in active client acquisition (New Business);
• Ability to independently build and manage a sales funnel;
• Strong negotiation and closing skills;
• Understanding of advertising models (CPA, RevShare, CPM is a plus);
• Working-level English.

We Offer

• Fully remote work (no trackers);
• Flexible working format;
• Opportunity to influence product development;
• Direct communication with founders;
• Competitive compensation (base + bonus, discussed individually)
• Long-term collaboration.