Jobs at Djinni

24PLAY is a product company from Ukraine that has been developing and publishing mobile games since 2019. We are a team of professionals who have launched dozens of popular games and gained over 100 million satisfied players worldwide. Our games include Zombiepunk, Bliezkrieg Assault, Street Dude, and more.

As a Diia City resident, we offer employee reservation starting from the first day of employment.
 

We are currently looking for a Recruiter to share our core company values:

• Creativity: We actively encourage and embrace each other’s ideas, transforming them into reality through collaboration and innovative thinking.
• Integrity: We commit to providing honest feedback and realistically assessing situations, fostering a culture of trust and transparency.
• Productivity: We strive to optimize our workflows to achieve the best possible results in the shortest timeframe, ensuring efficiency and effectiveness in our operations.
• Uncompromising Quality: Our commitment to excellence drives us to prioritize the quality of our work above all else, ensuring that we consistently deliver outstanding results.
• Healthy Lifestyle: We advocate for a healthy lifestyle and stand against harmful habits, promoting well-being and balance within our team.
  
   

We are looking for a professional for the role that requires:

• Full-time job;
• Office-based in Kyiv.

Main responsibilities:

• Actively participating in closing vacancies (Gamedev);
• Sourcing candidates across various platforms;
• Reviewing resumes and conducting interviews;
• Building and maintaining communication with candidates;
• Managing the candidate database in a CRM system;
• Working with job boards, social media, and other sourcing channels.

Our ideal candidate:

• Experience in recruiting specialists;
• Strong verbal and written communication skills in Ukrainian;
• English proficiency at Intermediate level or higher;
• Ability to work in a fast-paced, multitasking environment;
• Attention to detail and responsibility;
• Ability to complete tasks efficiently;
• Willingness and ability to learn quickly;
• Passion for games!

Would Be a Plus:

• Experience in recruiting and sourcing specialists in the Gamedev industry.
   

Why join our team?

• Fully Legal: Official employment in full compliance with Ukrainian labor legislation, including paid vacation (24 days) and sick leave (unlimited).
• As a Diia City resident, we offer employee reservation starting from the first day of employment.
• Professional Team: A high-performing group of skilled individuals committed to excellence.
• No Overtime: We prioritize a healthy work-life balance, with no overtime required.
• Stable Payments: No payment delays since the foundation of the company.
• Bonus System: A unique reward system designed to motivate employees by aligning their performance with the company’s financial goals.
• Professional Development: Access to mentorship programs and our internal library for continuous growth.
• Weekly Events: Enjoy board games, masterclasses, corporate events, sports activities, and free English classes.
• Comfortable Workspace: A modern office in Kyiv featuring a spacious lounge, fully-equipped kitchen, sports zone, cinema, and complimentary spa facilities for employees.

Developed product is the leading software system in Energy domain covering all aspects of Oil & Gas production from geological exploration to optimization of ongoing production. Our technology solution helps geologists and geophysicists to research, visualize and interpret large volumes of geological data.
Work supposes close cooperation with Customer team located in Houston and following Agile principles.
Our team is senior, supportive and friendly.
We are seeking an experienced and highly skilled Senior Software Engineer with 10+ years of expertise in MFC/C++/Fortran development. The ideal candidate will have a strong background in EDM (Energy Data Models) and a proven track record of working in the Petroleum Engineering or Oil & Gas domain. This role demands a deep understanding of software development and domain-specific knowledge to contribute to cutting-edge solutions in the energy sector.

• Responsibilities:

  Lead the design, development, and maintenance of applications using MFC/C++/Fortran
  Collaborate with cross-functional teams to develop solutions aligned with industry standards and best practices.
  Utilize EDM to design and optimize data structures, ensuring robust and efficient data handling.
  Develop and implement software solutions tailored to the Petroleum Engineering or Oil & Gas industry.
  Conduct code reviews and ensure the adherence to high-quality coding standards.
  Troubleshoot and resolve complex software issues, ensuring system reliability and performance.
  Provide technical mentorship to junior developers and promote knowledge sharing within the team.
  Stay updated with industry trends and emerging technologies to incorporate innovative solutions into projects.

• Mandatory Skills Description:

  Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
  Senior (10+ years) Developers with MFC and C++
  Strong SQL Server or Oracle Database experience
  Strong expertise in EDM and its application in software development.
  Proficiency in C++ and object-oriented programming.
  Strong analytical, problem-solving, and debugging skills.
  Excellent communication and collaboration abilities.
  Proven ability to manage complex projects and deliver within deadlines
  In-depth knowledge of the Petroleum Engineering or Oil & Gas domain is highly preferred.

• Nice-to-Have Skills Description:

  Experience with data visualization, simulation tools, or engineering applications is a plus.
  Experience with Fortran is a plus
  Familiarity with other development frameworks and languages, such as .NET or Python or Node/Angular or Java.
  Experience working with cloud-based solutions or integrating with IoT in the energy sector.
  Understanding of wellbore modeling, reservoir simulation, or production optimization.

Our client is a leading global Financial markets data provider that runs many change programs to deliver high-quality software that connects Financial Markets across the globe in a real-time, high-frequency, and low-latency data management chain.
We are seeking a Senior DevOps Engineer for Real Time Data Distribution System in the Real Time Core team. The successful candidate will combine strong technical and collaboration skills in a demanding and dynamic environment. You will work directly with your team and with groups across the organisation to ensure the best service for our client base.
You will be a member of a multi-skilled team building and maintaining components for our market leading our system. We strive for our engineers to work within agile teams that emphasize standard process and believe quality is everyone's responsibility. They bring an enthusiastic attitude whilst making sure they share their knowledge while removing constraints.

• Responsibilities:

  Key Responsibilities:
  • Engaging with the product owner, team lead, architects and other members of the global team you'll help build world-class solutions to address our customer needs.
  • Demonstrating a consistent focus on quality and security, you'll deliver reliable, and robust solutions.
  • Manages own workload and promotes an inclusive and open culture.
  • Takes initiative to develop knowledge in technology products and tools through on the job learning, certifications and projects.
  • Actively participating in Scrum meetings, you'll give timely status updates to the Team Lead and/or Scrum Master on areas for which you are responsible.
  • Through agile retrospectives and reviews, you'll analyse and adapt, finding innovative ways to enable your team work more effectively delivering on time to defined standards of quality.
  • You'll need to able to work well under pressure and be adept at taking problems and seeing them through to resolution with minimal supervision.
  • You'll be an excellent communicator and very client focused with strong interpersonal skills.
  • You'll ensure that the Knowledge Base is kept up to date with the team's knowledge and technical issues resolution.
  • Second line point of escalation in event of a major incident.
  • Occasional weekend or evening deployment work.

• Mandatory Skills Description:

  • 8+ years of proven experience as a DevOps Engineer or similar role
  • 5+ years of hands-on Linux administration (RHEL/CentOS/AlmaLinux/Ubuntu) in enterprise environments
  • Proven experience leading OS upgrade and migration projects (in-place and rebuild approaches) across multiple environments
  • Strong expertise in patching strategies, lifecycle management, and end-of-support planning
  • Advanced knowledge of package management (YUM/DNF/APT) and repository management
  • Experience designing and executing backup, rollback, and disaster recovery procedures for upgrades
  • Strong scripting and automation skills (Bash, Python) with focus on reducing manual effort
  • Hands-on experience with configuration management and orchestration tools (Ansible preferred)
  • Experience working with virtualization and cloud platforms (VMware, AWS, Azure)
  • Deep understanding of system internals (kernel, boot process, systemd, networking, storage)
  • Strong troubleshooting skills, including performance issues and post-upgrade incident resolution
  • Experience working in production environments under strict change management (ITIL or similar)
  • Solid understanding of security, patch compliance, and vulnerability remediation processes
  • Ability to assess risks, plan upgrades end-to-end, and coordinate with multiple stakeholders

About Us

We are looking for a highly skilled and proactive Middle QA Automation Engineer to join our engineering team and take ownership of test automation and quality practices, with a strong focus on mobile applications.

Our products rely heavily on mobile experiences, including apps built with Flutter, and require a robust, scalable, and reliable approach to test automation.

This role goes beyond writing tests — it is about building a sustainable mobile automation ecosystem, improving engineering processes, and ensuring consistent product quality across the entire development lifecycle.

The ideal candidate combines strong hands-on expertise in mobile automation with a systems mindset and takes full ownership of quality as an engineering discipline.

Core Responsibilities

Design, build, and maintain scalable test automation frameworks with a strong focus on mobile applications (iOS/Android), including Flutter-based apps.

Define and evolve a mobile-first automation strategy, balancing UI, API, and integration testing for optimal coverage and stability.

Develop robust automated test suites for mobile UI, including handling asynchronous behavior, animations, and platform-specific differences.

Integrate automated tests into CI/CD pipelines, ensuring reliable execution across devices, emulators, and environments.

Collaborate closely with Mobile Developers, Product Owners, and DevOps to ensure testability and embed quality early in the SDLC.

Drive best practices for mobile test architecture, test data handling, and environment stability.

Perform root-cause analysis of defects, with a focus on complex mobile-specific issues (state, network conditions, device fragmentation).

Participate in code reviews for both application and test code, ensuring maintainability and scalability.

Support release cycles with clear quality signals, including mobile-specific metrics (crash-free rate, test stability, coverage).

Typical Requirements

Experience

4+ years of hands-on experience in QA with a strong focus on automation.

Proven experience in mobile test automation (iOS/Android).

Experience working with applications built on Flutter is highly desirable.

Solid understanding of SDLC, Agile/Scrum methodologies, and quality engineering principles.

Technical Test Automation Skills

Strong expertise in mobile automation frameworks:

Appium / WebdriverIO (mobile) / Detox / Espresso / XCUITest or similar.

Experience testing Flutter applications, including understanding of widget-based UI and common testing challenges.

Strong knowledge of UI automation (Playwright / Selenium / Cypress is a plus, but not primary).

Hands-on experience in API testing:

Postman / Newman / REST Assured or similar tools.

Proficiency in at least one programming language:

Python / Java / JavaScript / TypeScript.

Experience with CI/CD pipelines for mobile testing:

Jenkins, GitHub Actions, GitLab CI, including running tests on emulators or device farms.

Understanding of mobile-specific challenges:

device fragmentation, OS differences, network variability, app lifecycle.

Soft Skills

Strong analytical thinking and ability to break down complex mobile behaviors into testable scenarios.

High level of ownership and accountability for product quality.

Ability to work independently and proactively identify risks in mobile user flows.

Clear and structured communication with cross-functional teams.

Nice-to-Have

Experience with Flutter integration testing (integration_test, flutter_driver legacy).

Experience with cloud-based device farms (BrowserStack, Sauce Labs, Firebase Test Lab).

Experience with performance testing and monitoring of mobile applications.

Familiarity with crash analytics tools (Firebase Crashlytics or similar).

Experience with microservices and backend validation for mobile apps.

What You’ll Deliver

Reliable and scalable mobile automation coverage, including Flutter-based applications.

Increased confidence in mobile releases across devices and platforms.

Faster and more predictable release cycles through stable automation.

Early detection of mobile-specific issues before production.

Contribution to building a strong, engineering-driven quality culture around mobile products.

We are looking for a dynamic team of three experienced developers to join our new product development project. This project will be an integral part of our existing solution to innovate and expand our offerings. 

Key Responsibilities:

• Develop and maintain both front-end and back-end solutions using React and Node.js.
• Collaborate within a team to build cloud-based and AI-driven solutions.
• Engage in continuous integration and delivery (CI/CD), implementing the latest software development practices.
• Leverage Generative AI tools such as Cursor, Claude Code, Windsurf, or other AI coding assistants to enhance development efficiency and innovation.
• Ensure system scalability and maintainability using AWS infrastructure.

Requirements:

• At least 4 years of experience in full-stack development with a strong background in React, Node.js, and Python (Python as a plus).
• Proven experience with Generative AI tools and concepts (required).
• Experience in cloud-based development (AWS) and knowledge of cloud code practices.
• Ability to work in an Agile, fast-paced environment with a focus on AI-driven products.
• Prior experience in working collaboratively as part of a team with a similar tech stack.
• Experience in building scalable, secure, and high-performance applications.

Team Culture:

We are looking for developers who are comfortable working within a team that already knows how to collaborate effectively. 

About the Role & Project

We’re looking for a Middle AI Engineer to help build practical AI solutions for real-world business needs.

In this role, you’ll work hands-on with LLMs and GenAI, collaborating with engineers, solution designers, and product teams. You’ll be involved in designing, prototyping, and deploying AI features, with room to grow into more advanced or client-facing responsibilities over time.

Location: Remote / Hybrid (Ukraine / EU), with occasional travel if needed

What You’ll Do

AI Development & Implementation

• Build and integrate AI / GenAI solutions into products
• Work with LLM APIs (OpenAI, Azure OpenAI, etc.)
• Develop and improve RAG pipelines and AI-powered features
• Create PoCs and MVPs to validate ideas

Systems & Integration

• Integrate APIs and third-party services
• Work with databases, including vector databases
• Troubleshoot and optimize existing solutions

Team Collaboration

• Work closely with engineers and solution designers
• Contribute to architecture discussions
• Participate in code reviews

AI-Enhanced Development

• Use tools like Copilot, Cursor, etc. to speed up development
• Apply prompt engineering techniques
• Validate and refine AI-generated outputs

What We Expect

Experience

• 3+ years in software development (Python or similar)
• ~1 year of hands-on experience with AI / LLMs
• Experience building and integrating APIs
• Experience working on real-world projects

Technical Skills

• Python (APIs, async, production-level code)
• LLM basics (prompting, APIs, understanding of RAG)
• REST APIs (GraphQL is a plus)
• SQL + basic knowledge of vector databases
• AWS or Azure (basic level)
• Docker (Kubernetes is a plus)

Nice to Have

• Experience with RAG or AI agents
• AI-related pet projects or open-source contributions
• Some exposure to client communication or presales

Soft Skills

• Clear communication of technical ideas
• Proactive and самостоятельный mindset
• Comfortable working with some ambiguity
• Willingness to learn and grow in AI

Languages

• English: Upper-Intermediate (B2+)
• Ukrainian: required

What We Offer

• Flexible working schedule
• Remote-friendly setup
• Stable employment
• Paid vacation and sick leave
• Growth opportunities within the project

A global marketplace for savings and investments, providing users with seamless access to high-yield savings accounts and investment options from over 400 partner banks worldwide. The platform removes geographic barriers while ensuring transparency, convenience, and competitive rates. For banks, it delivers cost-efficient deposit funding and innovative Banking-as-a-Service solutions. The team is responsible for the integration of transaction accounts, hosted via our servicing banks, into the Raisin platform. They ensure smooth funding across all products, correctly routing incoming and outgoing payments to their intended destinations. The team consists of 10 members working collaboratively in a cross-functional setup.

Responsibilities:

• Deliver core services and high-quality solutions for a large-scale online platform and its banking systems.
•  Integrate externally developed components into existing applications.
• Define standards, share best practices, and contribute to continuous learning within the team.
• Perform software engineering tasks with a strong focus on quality and support teammates in maintaining the same standards.
• Conduct thorough code reviews, covering best practices, business rules, performance, security, and impact on other features/projects, always providing constructive and respectful feedback.
• Collaborate within the team to negotiate and document software development standards and practices.
• Research and propose multiple technical solutions whenever possible.
• Take end-to-end ownership of project delivery within the team.
• Maintain and manage technical documentation and address technical debt proactively.
• Participate in the hiring process through tech-fit interviews and technical challenge evaluations.

Requirements:

• 6+ years of overall software development experience.
• Minimum 5 years of experience with Java and Spring Boot.
• Strong understanding and hands-on application of design patterns.
• Practical experience with testing practices (unit, integration) using tools such as JUnit, Mockito, TestContainers.
• 4+ years of experience with AWS Services, Kubernetes, event-driven architectures (Kafka or ActiveMQ), Spring Boot, SQL, and NoSQL.
• Excellent communication skills with the ability to articulate challenges and solutions clearly.
• Proven team player who collaborates effectively and supports shared goals.
• Strong critical thinking and problem-solving skills, with the ability to analyze production issues and design robust solutions (highly desirable).
• Proactive in supporting teammates and driving technical improvements (strongly preferred).
• High responsibility when working with payments, as this is a critical, core functionality for the company.

#WeAreIn for jobs that impact everyone's life. What if your ideas could change the way the world connects, powers up, or thinks? As an Embedded Systems Engineer on our Research & Development team, you'll have the opportunity to merge creativity with your technical expertise by shaping the future of technology, driving groundbreaking projects, and bringing new ideas to life. Are you in?

Your Role

Key responsibilities in your new role

• Be responsible for firmware development for the MCU system and peripherals
• Implement drivers and middleware that enable hardware capabilities according to business specifications
• Work with an international team on cutting-edge technology
• Contribute to the innovative advancement of the company’s MCU solutions

Your Profile

Qualifications and skills to help you succeed
 

• A university degree in Computer Engineering, Computer Science, Electronics, or similar domain
• At least 3–5 years of experience in embedded solutions development
• Strong knowledge of Embedded C
• Good understanding of MCU peripherals
• Strong knowledge of communication interfaces like I2C/SPI/UART
• Good knowledge of make-build systems and Git

• At least an intermediate level of English

   

Please send us your CV in English.

Description

Broadband team works on 2nd generations of Harmonic (NASDAQ:HLIT) Cable Access products: actively developing the industry’s first software-based CCAP solution (“Cable OS”) and cloud native CMTS.

These solutions allow to cable operator companies to deliver the IP-based data, video, and voice services to millions of customers. Focus is given to CableOS which will allow to get rid of the existing HW equipment and to migrate to the cloud, saving customers the enormous expenses for the support of HW network equipment.

The system is based on microservice architecture and is running on the general purpose CPUs. It doesn’t require using ASICs and make possible to run the SW both on the bare metal servers as well as on the private cloud infostructure. CableOS is a pioneer in DOCSIS software defined networking (SDN) with all the benefits it gives to the service providers.

GlobalLogic team is involved in development, manual and automated testing, as well as in solution integration at customers’ headend and further technical support 24/7 with providing professional services for Customers.

To learn more – please visit

HTTPS://WWW.HARMONICINC.COM/BROADBAND/
HTTPS://WWW.GLOBALLOGIC.COM/UA/HARMONIC-AND-GLOBALLOGIC/

Requirements

• 1+ years of experience in SW testing or customer support in network provider companies
• Understanding and knowledge of computer networks and L2/L3 networking protocols
• Basic hands-on experience with Linux command-line
• High level of interpersonal skills. Ability to communicate effectively with different groups.

• At least Intermediate level of English (writing and speaking).

  Would be a plus:

• Knowledge in DOCSIS / PON (Passive Optical Network)
• Knowledge in CI/CD (Jenkins)
• Data traffic generators (Ixia, iPerf.) and analyzers (Wireshark)
• Script tools/languages (Python, Bash, etc.)
• Hands-on experience with virtualization technologies (Kubernetes, Docker).

Job responsibilities

• Active collaboration with mentor
• Deep involvement in the commercial project workflow and practical tasks
• Test end-to-end complex embedded systems by analyzing automation test results, which are part of Continuous Integration (CI)
• Maintain test suites (CI) by adding new tests (Python) developed by other teams, and optimizing their structure to increase coverage
• Ramp up and maintain a shared pool of setups dedicated to the CI/CD activities
• Work in agile mode and cooperate with multiple scrum teams

Project Description

Our Customer is one of the biggest companies on the market of home entertainment consumer electronics devices that strives to provide their clients with high-quality products and services.

Project goals include testing of new streaming devices, their firmware, media apps with video and audio content available on those devices, integration with web services, payment; providing testing results to Customer for decision making.

Job Requirements:

• 2+ years of experience in manual testing
• Strong knowledge of testing theory (test types, test cases, bug reports, etc.)
• Experience in creating test documentation
• Knowledge of Operating Systems and network protocols
• Basic knowledge of hardware
• High attention to details, patience, and investigation skills
• Upper-intermediate English level
• Fast learner with strong problem-solving skills
   

Job Responsibilities: 

• Manual testing of set-top boxes firmware
• Testing of media apps with video and audio content
• Communication with the Customer's team
• Creating, updating, and reviewing test cases
• Creating test reports
• Creating Test Plan documents
  
  Must Have: 
• Regression testing
• Manual functional testing
• Technical Documentation
• Test plan
• Manual testinng
• Test case creation and execution 
• Bug tracking and reporting
• Gherkin
  
   

PwC is a global network of more than 370,000 professionals in 149 countries that turns challenges into opportunities. We create innovative solutions in audit, consulting, tax and technology, combining knowledge from all over the world.

PwC SDC Lviv, opened in 2018, is part of this global space. It is a place where technology is combined with team spirit, and ambitious ideas find their embodiment in real projects for Central and Eastern Europe.

What do we guarantee?

• Work format: Remote or in a comfortable office in Lviv - you choose.
• Development: Personal development plan, mentoring, English and Polish language courses.
• Stability: Official employment from day one, annual review of salary and career prospects.
• Corporate culture: Events that unite the team and a space where everyone can be themselves.

We are seeking a Senior DevOps Engineer with experience or strong knowledge in working within teams or leading workstreams involving DevOps for a global network of professional services firms, with emphasis on the following areas:

• Linux/Unix environment / System administration;
• Configuration Management;
• Multiple scripting languages on Linux platform (Bash, Awk, Sed, Python);
• Cloud-hosted systems;
• Hardware capabilities;
• Transport security, SSH and certificates;
• Docker containers for application deployment;
• Relational databases;
• NoSQL data stores;
• Distributed/clustered or grid computing systems.

Skills required:

• Administering and configuring Linux OS including network and software application setups;
• Setting up and managing CI/CD pipelines using tools such as GitHub Actions, Azure DevOps, or Jenkins;
• Automating repetitive development, deployment, and operational tasks;
• Documenting systems, refining requirements, identifying solutions independently, and effectively communicating within the team;
• Database management including design, creation, query optimization, and manipulation;
• Utilizing enterprise orchestration tools (e.g., BPM, ESB) and messaging queues (e.g., RabbitMQ) to manage services and workflows efficiently.

Key Responsibilities: 

• Administration of Linux/Unix environments, including network and software configuration;
• Configuration management and automation of deployment processes;
• Development and maintenance of automation scripts on Linux platforms;
• Support and administration of cloud systems and infrastructure;
• Deployment of applications in Docker containers and support of containerized environments;
• Setting up and maintaining continuous integration (CI) and continuous deployment (CD) processes using tools like GitHub Actions, Azure DevOps, etc;
• Automation of routine development, operations, and deployment tasks.

Policy statements:
https://www.pwc.com/ua/uk/about/privacy.html

GlobalLogic Ukraine is inviting an Embedded C Developer to join its Lviv office. 

On-site position: Lviv, office: 5 times a week.

Our client is one of the leading manufacturers of professional construction tools, focused on expanding its market presence through innovative features and advanced hardware solutions.

As a skilled developer, you will be responsible for implementing new functionalities and maintaining existing embedded system libraries. You will also contribute to the development of integrated hardware-in-the-loop (HIL) testing systems, ensuring high production code quality.

In this role, you will be actively involved in the software development of industrial-grade construction tools, working on cutting-edge solutions in a dynamic environment.

Requirements

Must have:

• C programming language (at least several years of experience)
• Pro-active, team player, good soft skills
• Good programming experience with ARM Cortex-M based MCUs (STM32 preferable)
• Understanding of electric motor control systems (motor types, regulation modes)
• English min. B2 level
• Experience with real-time operating systems/Multithreading
• Embedded interfaces knowledge (SPI, UART, CAN, I2C…)
• CI/CD: git, Jenkins
• Agile/SCRUM

Nice to have:

• Read and understand electrical schematics

Job responsibilities

• Design and implement new features
• Update/maintenance of existing embedded software
• Design, implement, and unit testing of embedded software in C
• Customer communication on daily basis

We are looking for a Business Analyst  with experience in Microsoft Dynamics Business Central to join our team. This role involves close collaboration with business stakeholders, analysis of processes, and implementation of ERP solutions.
 

🔧 Responsibilities

• Analyze and document business requirements
• Gather and formalize functional requirements
• Configure and support Microsoft Dynamics Business Central
• Participate in ERP implementation projects
• Communicate with stakeholders and end users
• Prepare documentation (BRD, SRS, user stories)
• Participate in testing and go-live activities
• Provide post-release support
   

✅ Requirements

• 3+ years of experience with Microsoft Dynamics Business Central (or NAV)
• Understanding of business processes (finance, supply chain, sales, procurement)
• Experience in writing business and technical documentation
• Experience in ERP implementations
• Strong communication skills
   

➕ Nice to have

• Experience with AL development or understanding of BC customization
• Experience with system integrations
• Microsoft Dynamics certifications 

About the role

We are looking for a Senior Data Scientist to lead the evolution of machine learning systems within a high-scale AdTech ecosystem.

This is not a “campaign optimization” role. You will work on the core decision-making systems (DSP level) — where pricing, bidding, pacing, and experimentation interact in real time across billions of events per day.

You will be shaping the “brain” of the platform: a set of interconnected systems where small improvements can have a large business impact.

What you’ll work on

• Pricing & Budget Scalability
  Scale budgets while maintaining performance and controlling overspend
• User Selection Optimization
  Improve CVR through smarter targeting and traffic selection
• Exploration Efficiency
  Reduce wasted spend while preserving learning
• Incrementality Measurement
  Measure true lift vs attributed performance
• Fraud Detection & Filtering
  Improve traffic quality and filtering strategies

What we expect from you

System-level thinking

• Ability to reason about interacting systems, not isolated models
• Understanding of:
  • auction dynamics
  • bidding vs pacing trade-offs
  • feedback loops between models
• Seeing problems beyond segmentation or heuristics

Strong experimentation mindset

• Designing experiments, not just running A/B tests
• Experience with:
  • metric design (proxy vs north star)
  • online vs offline evaluation gaps
  • interference and auction effects
• Ability to translate system changes into measurable impact

Ownership & impact

• Proven track record of driving business impact, not only building models
• Ability to explain:
  • expected vs actual impact
  • why results differ
• Performance accountability mindset

AdTech domain understanding

• Solid understanding of:
  • targeting vs bidding vs supply dynamics
• Experience working close to DSP / auctions/pricing systems

Collaboration maturity

• Ability to work across DS, MLE, and Product
• Understanding trade-offs and constraints
• Experience making decisions in ambiguous environments

Core responsibilities

• Turn ambiguous problems into testable hypotheses
• Design and run offline analysis + online experiments
• Use intermediate metrics to understand system behavior
• Build prototypes and iterate quickly
• Identify where system-level improvements are required
• Collaborate across teams to drive end-to-end impact

Requirements

• 5+ years in Data Science / Machine Learning
• Strong experience in high-frequency systems (AdTech / FinTech / similar)
• Python & SQL proficiency
• Experience with big data tools (Spark, Snowflake, etc.)
• Strong ML background (TensorFlow, PyTorch, or similar)
• Solid foundation in:
  • probability
  • statistics (frequentist / Bayesian)
  • causal inference
• Master’s or PhD in a quantitative field

Nice to have

• Experience with DSP / auctions / pricing systems
• Experience with large-scale experimentation

The Role

We're looking for a DevOps Engineer to maintain and develop the  Security CI infrastructure. You'll own pipelines, container workloads, and delivery tooling — keeping builds fast, reliable, and secure.

Responsibilities

• Maintain and develop CI/CD pipelines using GitHub Actions (GHA) and Jenkins
• Manage and operate Kubernetes clusters and Docker based workloads
• Support the JFrog Security CI build and release processes
• Collaborate with R&D and Security teams to improve pipeline reliability and coverage
• Troubleshoot build failures and infrastructure incidents

Requirements

• At least 4 years of experience as a DevOps engineer working in product companies.
• Willing to do on call.
• Hands-on experience with GitHub Actions and/or Jenkins
• Strong practical knowledge of Kubernetes and Docker
• Comfortable working in Linux environments
• Scripting ability (Bash, Python, or similar)