Jobs at Djinni

RedCore is an international business group that creates technological solutions for digital markets. Our products and services cover fintech, marketing, e-commerce, customer service, communications, and regulatory technologies. 

We are growing and looking for an experienced and proactive CRM Manager to join our team. You will play a key role in managing user communications, optimizing retention strategies, and driving product growth as we scale.

Requirements:
- 2+ years of experience in CRM/Retention, ideally in iGaming or a similar high-frequency industry (e-commerce, fintech);
- Solid understanding of key metrics: DR, OR, CTR, LTV, ARPU, CR, Retention Rate, Churn Rate, ROMI;
- Hands-on experience with CRM/marketing automation platforms (e.g. Optimove, Customer.io, or similar);
- Good analytics skills;
- Experience running tests and interpreting statistically significant results;
- Comfortable working cross-functionally and organizing your own workload independently;
- English at B1+ level for reading professional documentation/analytics.

Responsibilities:
- Develop and launch omnichannel CRM campaigns (email, push, SMS, in-app, etc) within the agreed retention and monetization strategy;
- Build and maintain user segmentation based on behavioral and product metrics;
- Form and test reactivation and churn-reduction hypotheses within assigned segments;
- Run A/B, multivariable tests, document results, and draw data-driven conclusions;
- Analyze the performance of your own CRM activities (CR, ARPU, Retention, bonus engagement) and prepare regular reporting;
- Ensure the quality and timeliness of campaign content, and compliance with brand guidelines and tone of voice;
- Maintain documentation for your campaigns, sendings, following established templates and testing frameworks;
- Suggest new retention ideas based on market observations and results of your own campaigns.

What are the conditions and bonuses?
☘️An exciting and challenging job in a fast-growing product company, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance and other;

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

📍Beautiful offices in Warsaw, Limassol work remotely or on-site with comfort and enjoy the opportunity to build a network of connections with professionals day by day;

🧑🏻‍💻Laptop & all necessary equipment for work according to the ecosystem standards;

🏖Paid vacations, personal events days, days off;

🫖Paid sick leave;

👨🏻‍⚕️Medical insurance;

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

📚Educational support by our L&D team: internal and external trainings and conferences, courses on Udemy;

🧘Sport benefit;

🦄Multiple internal activities: online platform for employees with quests, gamification and presents for collecting bonuses, RedCore talks club for movie and book lovers, board games cozy evenings, special office days dedicated to holidays;

🎳Company events, team buildings.

20-30 hours per week

On behalf of our Client, Mobilunity is looking for a Data & Analytics Support Specialist.

You will join a team supporting data-driven decision-making through accurate reporting, dashboards, data validation, and business analysis.

The role is focused on ensuring that business and project teams have reliable, understandable, and up-to-date data. You will work with reporting tools, databases, and analytical datasets, investigate data inconsistencies, support ad-hoc requests, and help stakeholders understand key business metrics.

This is a part-time opportunity of 20–30 hours per week, making it a good fit for a data professional who enjoys working with reporting, analytics, and data quality in a flexible environment.

What we’re looking for:

We need a data-oriented professional who is comfortable working with reports and datasets, validating information, investigating inconsistencies, and supporting business users with data-related requests.

The ideal candidate:

• has a structured and analytical approach to working with data;
• is attentive to data accuracy and consistency;
• is comfortable working with SQL and reporting tools;
• can independently investigate data issues and identify trends or anomalies;
• understands KPIs and basic analytical concepts;
• can communicate data findings clearly to non-technical stakeholders;
• is comfortable handling both regular reporting and ad-hoc analytical requests.

Responsibilities:

• Prepare and maintain regular reports and dashboards.
• Extract data from databases and analytics systems.
• Check data for accuracy, completeness, and inconsistencies.
• Support ad-hoc data requests from business and project teams.
• Create and update KPIs and analytical metrics.
• Help users interpret reports and data.
• Write basic SQL queries to retrieve and validate data.
• Perform data cleansing and validation.
• Maintain data definitions and documentation.
• Check data pipelines and integrations.
• Support data quality initiatives.
• Maintain datasets used for reporting and analytics.
• Identify trends, anomalies, and significant changes in business metrics.
• Compare performance against KPIs.
• Perform basic statistical analysis.
• Investigate the reasons behind changes in business metrics.
• Provide insights and recommendations based on data.

Requirements:

• Commercial experience in Data Analytics, Data Reporting, Business Intelligence, or a similar role.
• Good understanding of SQL and experience using SQL to retrieve and validate data.
• Hands-on experience with AWS QuickSight.
• Hands-on experience with AWS Athena.
• Advanced Excel skills.
• Experience creating and maintaining reports and dashboards.
• Understanding of KPIs and analytical metrics.
• Experience with data validation, cleansing, and quality checks.
• Strong analytical and problem-solving skills.
• Ability to identify trends, anomalies, and inconsistencies in data.
• Good communication skills and ability to explain data to business users.
• Experience working with PowerPoint for presenting data and insights.
• Experience working with Jira or similar project management tools.
• Good command of English.

Nice to have:

• Experience working with data pipelines and integrations.
• Experience with BI or data visualization tools other than AWS QuickSight.
• Experience with data quality initiatives.
• Experience working in a business or product environment.
• Basic knowledge of statistics and data analysis.
• Experience supporting cross-functional or international teams.

Who we're looking for:

Parsec Studio is hiring a Marketing Specialist (Email and LinkedIn outreach) to build and run a systematic cold outreach engine — becoming our primary channel for landing new clients. 

This isn't a one-off email blast. We need someone who can build a full machine: from sourcing and validating leads, to messages that actually get replies, to booked calls on the calendar.

What you'll do

• Build and run a cold email + LinkedIn outreach system, from scratch or on top of existing tools
• Source and validate leads: define ICP, manage list sources, verify emails, segment audiences
• Write and test messaging sequences (email sequences, LinkedIn InMail/connection flows)
• Continuously optimize conversion at every funnel stage (open rate, reply rate, meetings booked)
• Maintain CRM tracking of leads and report on funnel performance

• Work closely with the founder on positioning and value propositions for different niches. 

   

What matters to us

Must have:

• Proven experience building and running cold email outreach systems (Smartlead, Apollo, Linked Helper, or similar)
• Confident with LinkedIn outreach
• Experience sourcing and validating B2B leads (Apollo, Clay, Hunter, Snov.io, etc.)
• Solid grasp of cold outreach funnel metrics and how to improve each stage
• Strong written English, able to craft persuasive copy for a Western audience

Big plus:

• Experience in Video Production, Motion Design, Design, or Creative Services — understanding how to sell creative services
• Agency background or experience with project-based (not transactional) sales

What we offer

• Direct collaboration with the founder, no bureaucracy or unnecessary approvals
• Real impact: this channel directly drives the studio's growth
• Flexible schedule, fully remote
• Room to experiment — we're open to new tools and approaches as long as they deliver results

How to apply

Send a short resume + 2–3 examples of campaigns you've built (metrics are welcome more than pretty screenshots). If there's an email you're personally proud of, include it.

We are looking for a Back-End Developer to join our team.

Over the years, we have built well-established work processes, earned an excellent reputation, and successfully delivered around 300 projects. These include custom ERP and CRM systems, healthcare solutions such as Wibbi, web applications such as Exotics Racing, online booking platforms such as WelcomeSaudi, marketplace and review platforms such as NoCowboys, and official medical education platforms such as ExchangeCME.

Requirements:

• 2+ years of experience with PHP, including Laravel;
• Experience with MySQL;
• Basic knowledge of front-end technologies, including HTML5, CSS3, JavaScript, and SASS/LESS;
• Experience with Git and GitFlow;
• ability to work with LLMs;
• Intermediate level of English
   

Examples of daily tasks:

• Creating custom features for booking, invoicing, accounting, product management, admin panels, forms, and validations;
• Building CRUD operations;
• Integrating payment gateways;
• Setting up system email notifications;
• Working with API integrations;
• Working with databases, including database design and queries;
• Working with AWS;
• Creating user roles and role-based functionality.

The task pool depends on the specific project.

We work in cross-functional teams consisting of developers, a team leader, a project manager, and a QA engineer. We do not simply execute client tasks — we provide solutions and offer consulting.

For every project, it is important to contribute not only to the architecture and code but also to the client’s business by playing an active role in the project’s development. This means being ready to propose solutions for various business challenges the client may face.

For example, one of our clients had not received their payment system API key and was unable to process payments on Black Friday. We urgently implemented an “order” feature that allowed their customers to place orders at discounted prices and pay later.

If you are interested in this position, we would be happy to discuss it in more detail.

We are seeking a hands-on Senior DevSecOps Engineer with strong AWS and Azure experience to embed security directly into our engineering lifecycle. In this role, you will be the technical engine that automates compliance guardrails, integrates security tooling (SAST/DAST, EDR, Vulnerability Management) into CI/CD pipelines, and routes critical security telemetry to our SIEM. Your mission is to build the automated scaffolding that allows software delivery to move at high speed without compromising on enterprise security or governance.

Key Responsibilities

·  CI/CD Security Automation: Design, build, and maintain secure deployment pipelines (e.g., GitHub Actions, Azure DevOps, GitLab CI). Integrate automated vulnerability scanning, secret detection, and software supply chain security (SCA) seamlessly into the developer workflow.

·  Policy-as-Code & Guardrails: Write, test, and deploy automated policy guardrails using Infrastructure as Code (IaC) linting and scanning tools (e.g., Checkov, Tfsec, OPA/Rego) to catch misconfigurations before they reach production.

·  Security Product Deployment: Automate the baking of EDR agents, vulnerability scanners, and monitoring tools into base machine images (AMIs, Azure Golden Images) and containerized base environments.

·  Vulnerability & Remediation Pipelines: Operationalize vulnerability management by building automated workflows that ingest findings from cloud security tools, prioritize them based on risk, and route them to engineering backlogs (e.g., Jira tracking).

·  Logging & SIEM Integration: Configure and automate the pipeline delivery of application, container, and infrastructure logs to central logging repositories and SIEM systems for real-time threat hunting.

·  Developer Enablement: Serve as a bridge between Security and Engineering, providing developer-friendly remediation guidance and creating reusable, secure-by-default code templates (Terraform modules, Helm charts).

Required Skills & Qualifications

·  DevSecOps & CI/CD Pipelines: Deep, practical experience constructing and securing automated build/release pipelines at scale.

·  Multi-Cloud Platforms: Hands-on engineering experience configuring native security services and access controls in both AWS and Azure.

·  Infrastructure as Code (IaC): Advanced proficiency with Terraform or cloud-native tooling (Bicep, CloudFormation), focusing on modular design and immutable infrastructure.

·  Security Tooling Implementation: Direct experience implementing and maintaining security products across the lifecycle (e.g., SonarQube, Prisma Cloud, Wiz, Snyk, CrowdStrike, or Sentinel).

·  Container & Orchestration Security: Strong understanding of Kubernetes (EKS/AKS) security best practices, service meshes, and container runtime defense.

Preferred Certifications

·  Certified DevSecOps Professional (CDP) or Practical DevSecOps certification

·  AWS Certified Security – Specialty or Azure Security Engineer Associate

·  Certified Kubernetes Administrator (CKA) / Certified Kubernetes Security Specialist (CKS)...

We are looking for a Senior Product Designer to join our team and take ownership of the design of complex digital products.

We are looking for someone who combines strong UX and UI skills with a product mindset — someone who can understand complex user problems, work with data and constraints, and turn them into simple, intuitive experiences.

What you’ll be doing

• Design end-to-end user experiences for complex B2B and data-heavy products.
• Work across the full product design process — from understanding user needs and defining problems to wireframes, prototypes, UI and final implementation.
• Design and evolve scalable Design Systems.
• Create intuitive interfaces for complex workflows, dashboards and data-heavy environments.
• Collaborate closely with Product Managers, Engineers, users and other stakeholders.
• Conduct and incorporate user research and feedback into design decisions.
• Clearly communicate and defend design decisions using user needs, product goals, data and technical constraints.
• Design interfaces for web and mobile / native platforms.
• Contribute to improving product design processes and overall UX quality.

Requirements

• 5+ years of professional experience in Product Design.
• Strong UX + UI background — not purely visual/UI design.
• Experience designing complex B2B, SaaS, enterprise or data-heavy products.
• Hands-on experience building and evolving Design Systems.
• Advanced Figma skills.
• Experience designing mobile / native interfaces.
• Strong understanding of user flows, information architecture, interaction design and usability.
• Ability to work independently and take ownership of design tasks from problem definition to delivery.
• Experience working closely with developers, product managers, users and stakeholders.
• A strong portfolio demonstrating complete product design cases, including the problem, process, iterations and final solution — not just polished UI screens.
• Ability to explain and justify design decisions based on user scenarios, data, business goals and technical constraints.

Nice to have

• Experience designing AI-powered products or AI interfaces.
• Experience with complex dashboards, analytics platforms or other data-intensive products.
• Experience working with enterprise-level products.
• Experience designing products with complex user flows and multiple user roles.

Job Description

Required Experience

• 3 years of experience in software quality assurance, including functional and automation testing.
• Experience testing data-intensive systems and backend services.
• Hands-on experience with database testing (DB2, PostgreSQL, or similar) using SQL.
• Experience with test automation frameworks (Selenium, Cypress, or equivalent).
• Experience with Python
• Experience with API testing tools (Thunder Client, REST clients, or equivalent).
• Experience with CI/CD pipelines and Agile development methodologies.
• Bachelor's Degree in Computer Science, Information Technology, or related field — or equivalent work experience.

Preferred Experience

• Experience testing batch processing, ingestion pipelines, or distributed systems.
• Familiarity with copyright systems and data standards in the music industry (e.g., CWR, ISWC, IPI) is a significant plus.
• Experience with Azure DevOps for work tracking and pipeline integration.
• Familiarity with basic performance testing concepts is a plus, particularly against Java-based systems.
• Familiarity with DataDog for log monitoring and observability is a plus.
• Familiarity with Linux-based systems and command-line operations is a plus.
• Familiarity with Azure Portal and cloud resource management is a definite plus.
• Familiarity with AI as an augmentative tool for test case generation, documentation, and productivity is a plus.

Skills & Abilities

• Strong analytical and problem-solving skills with attention to detail.
• Ability to validate complex data transformations and multi-system workflows.
• Clear communication skills across technical and non-technical stakeholders.
• Ability to work independently and manage workload across multiple concurrent projects.
• Comfortable operating in a fast-paced, Agile delivery environment.

Job Responsibilities

Functional Testing

• Develop, coordinate, and execute end-to-end functional testing for core platform workflows including ingestion, parsing, transformation, and storage.
• Validate data integrity and correctness across DB2, PostgreSQL, and downstream processing pipelines.
• Create and maintain detailed test plans, test cases, and test data for functional, regression, and integration testing.
• Perform API testing and validation for services supporting data ingestion, matching, and processing workflows.
• Execute regression and smoke tests across assigned platforms for each release cycle.
• Identify, document, and manage defects using enterprise bug tracking tools (Azure DevOps / Jira).

Automation & Technical

• Develop and maintain automated test suites using Selenium, Cypress, or equivalent frameworks.
• Integrate automated tests into CI/CD pipelines (Azure DevOps preferred).
• Validate complex data-driven workflows including parsing, normalization, and transformation logic.
• Perform database validation testing using SQL across DB2 and relational systems.
• Support testing of distributed and batch processing systems including ingestion pipelines, parsers, and matching engines.

Collaboration & Process

• Collaborate with developers and architects to define acceptance criteria and testability requirements.
• Participate in Agile ceremonies: sprint planning, backlog grooming, and retrospectives.
• Provide clear and consistent status reporting on testing progress, risks, and quality metrics.
• Follow and contribute to QA standards, frameworks, and methodologies established by the team.

Department/Project Description

Our client is a performance rights organization in the United States. It collects blanket license fees from businesses that use music, entitling those businesses to play or sync any songs from the client's repertoire of over 22.4 million musical works. On a regular basis, the client distributes the money to songwriters, composers, and music publishers as royalties to those members whose works have been performed.

Description

The Digital Health organization is technology team which focused on next generation Digital Health capabilities which deliver on the Medicine mission and vision to deliver Insight Driven Care. This role will operate within the Digital Health Applications & Interoperability subgroup of the broader Digital Health team, focused on patient engagement, care coordination, AI, healthcare analytics & interoperability amongst other advanced technologies which enhance our product portfolio with new services, while improving clinical & patient experiences.

The project is a cloud-based PaaS Ecosystem built with a privacy by design centric approach to provide a centralized cloud-based platform to store, classify, and control access to federated datasets in a scalable, secure, and efficient manner.

The ecosystem will allow Customer Operating Units (medical device departments) to store federated data sets of varying sizes and formats and control access to those data sets through Data steward(s). Source data sets can be exposed to qualified use cases and workflows through different project types.

The Healthcare Data Platform ecosystem will provide ML/AI project capabilities for streamlined development processes and a ML/AI workbench to enhance data exploration, wrangling, and model training.

OU’s: Currently, Nuero, Cardio, Diabetes is the OU that HDP data platform is working with, but there could be more OU’s coming up with requirements in future.

GL Role: is to work on the enhancement of current capabilities, including taking over the work that AWS proserve team is doing, and develop new requirements that will keep coming from different OU’s in the future.

Requirements

As a System Engineer within the Company Research & Systems Engineering team, you will have the opportunity to work on cloud-based solutions with a strong focus on AWS, Data Engineering, and scalable data platforms. You will collaborate with cross-functional engineering teams to design, develop, integrate, and maintain reliable cloud-native systems and data workflows.

In this role, you will contribute to building and evolving AWS-based architectures, data processing pipelines, and integrations across distributed systems. You will develop a strong understanding of end-to-end system architecture, data flows, infrastructure, and operational requirements, helping to drive technical implementation and delivery throughout the software development lifecycle.

You will work closely with software engineers, data engineers, architects, and other stakeholders to ensure that solutions are scalable, secure, maintainable, and aligned with both technical and business requirements.

• 3+ years of experience in System Engineering, Software Engineering, Cloud Engineering, Data Engineering, or a related technical role.
• Strong software development experience with Python.
• Hands-on experience designing, developing, or supporting solutions on AWS.
• Experience with data engineering concepts and technologies, including data ingestion, ETL/ELT, transformation, validation, and data processing pipelines.
• Strong SQL skills and experience working with relational and/or NoSQL databases.
• Experience with REST APIs, service integrations, and distributed application architectures.
• Understanding of cloud-native architecture principles and modern software development practices.
• Experience troubleshooting applications and distributed cloud systems and performing root cause analysis.
• Experience with Git and modern CI/CD development workflows.
• Strong analytical and problem-solving skills with the ability to understand complex systems and data flows.
• Ability to work effectively with software, data, cloud, and machine learning engineering teams.
• BA/BS in Computer Science, Software Engineering, Information Technology, or a related technical field, or equivalent practical experience.

Preferred Qualifications

• Experience with AWS data services such as S3, Glue, Athena, EMR, or similar technologies.
• Experience with Amazon SageMaker and machine learning development or deployment workflows.
• Experience with Infrastructure as Code using AWS CloudFormation, Terraform, or AWS CDK.
• Experience with AWS monitoring and observability services such as CloudWatch and CloudTrail.
• Experience working in Agile/Scrum development environments.

Job responsibilities

• Work with engineering and cross-functional stakeholders to gather, analyze, clarify, and document business, functional, and non-functional requirements, translating them into clear system and technical requirements.
• Define system requirements, interfaces, data flows, integration requirements, acceptance criteria, and technical constraints for cloud-based software components, data platforms, and integrations.
• Maintain requirements throughout the development lifecycle, ensuring traceability between business needs, system requirements, technical design, implementation, and validation.
• Identify gaps, dependencies, assumptions, and potential technical risks in requirements and work with stakeholders to resolve them before and during implementation.
• Design and contribute to scalable AWS-based architectures supporting data ingestion, processing, transformation, storage, and distribution.
• Analyze data and system behavior to support architecture, implementation, performance, and product decisions.
• Collaborate with Data Engineering, Software Engineering, Cloud Engineering, DevOps, and Architecture teams to design and integrate end-to-end cloud solutions.
• Support operational monitoring, logging, alerting, and troubleshooting of cloud applications and data processing workflows.
• Contribute to system architecture and technical design discussions, including scalability, reliability, security, performance, and cost considerations.
• Participate in technical and requirements reviews to ensure solutions meet defined requirements, engineering standards, cloud best practices, and established software development processes.
• Support continuous improvement of cloud infrastructure, data pipelines, deployment processes, requirements management, and engineering practices throughout the software development lifecycle.

YouControl is an analytical system that from more than 220 sources forms a complete profile for each company and individual entrepreneur of Ukraine on the basis of open data, tracks changes in state registers and visualises links between affiliated persons. It contains data for checking foreign companies. The system allows businesses to check counterparties, as well as to look for new potential customers and partners. 
 

We are seeking a Middle DevOps Engineer to join our energetic and proactive team.
 

Your Key Responsibilities and Contributions:

• Participate in the development and implementation of a new approach to infrastructure. Infrastructure as Code (IaC) tools will serve as the main mechanism for managing the platform.
• Ensure high availability of applications and configure redundancy of platform components for company products.
• Supporting the daily operations and maintenance of company projects.
• Maintain product monitoring systems. Respond proactively to incidents to ensure a high level of SLA for B2B clients.
   

Key Required Skills:

• 3+ years of hands-on experience working closely with product development teams.
• 3+ years of experience with both on-premise solutions and cloud providers.
• Experience in configuring, maintaining, and supporting the reliability and uptime of infrastructure components (databases, virtualization clusters, common infrastructure).
• Familiarity with IaC tools (Terraform / Ansible).
• Solid knowledge of Unix systems at the system administrator level. Strong understanding of the OSI model.
• Understanding of virtualization/containerization principles and environments (KVM, LXC, Docker).
• Proficiency with monitoring systems (Zabbix / Prometheus)
• Familiarity with CI/CD tools (GitLab / Jenkins / etc.)
• Familiarity  with Kubernetes (K8s) in production environments.
   

Nice to Have:

• Knowledge of dynamic routing protocols (BGP, OSPF).
• Experience working with Proxmox / OpenNebula as core virtualization controllers.
• Familiarity  with any of the big cloud providers
  
  We offer:
• Competitive salary.
• Comfortable working environment.
• We provide employees with paid vacation, medical insurance and English language courses. 
• A system of internal and external training for experience exchange and professional growth.
• Friendly atmosphere with colleagues who are always ready to help.

We’re looking for an experienced Senior Backend Developer to join our engineering team and take part in building reliable, scalable solutions for international clients.
 

If you enjoy solving complex technical problems, thinking about architecture beyond individual features, and working with a team that values ownership and quality, this role could be a great fit.
 

🛠️ Technology

• Backend: .NET
• Databases: PostgreSQL, MySQL, Redis
• Additional: Docker, CI/CD, cloud technologies
• Nice to have: NoSQL, Node.js

🔧 Your responsibilities

• Develop and maintain robust backend applications and APIs
• Contribute to technical and architectural decisions
• Build solutions that can scale as products and user needs grow
• Improve existing codebases through refactoring and optimization
• Ensure the code you deliver is readable, maintainable, and properly tested
• Take part in code reviews and technical discussions
• Work closely with frontend engineers, designers, and project/product teams
• Support the team in planning and delivering new functionality
   

🎯 What we’re looking for

• 5+ years of professional experience with .NET backend development
• Strong knowledge of relational databases, particularly PostgreSQL and MySQL
• Good understanding of software architecture, design patterns, and engineering best practices
• Practical experience with Docker, CI/CD, and cloud environments
• Ability to take ownership of tasks and work effectively with limited supervision
• Strong communication and collaboration skills in a remote environment
• Good command of English, both written and spoken

• Experience with NoSQL databases or Node.js would be an advantage

   

🌟 What we offer

• Competitive compensation based on your experience and expertise
• 21 working days of paid vacation + Polish national holidays
• 14 paid sick-leave days
• Private medical care for employees residing in Poland
• Company events and team activities
• A friendly environment with experienced professionals
• The opportunity to work on a variety of international projects and solve different technical challenges

Role Overview

We are looking for a Senior Email Marketing Manager to own our newsletter portfolio, driving engagement, retention, deliverability, and revenue.

You will manage 7–10 newsletters, working closely with writers and designers to optimize content, subscriber experience, and commercial performance. This is an individual contributor role with the opportunity to build and lead a team as the portfolio grows.

Key Responsibilities

• Own the strategy, publishing, and optimization of multiple newsletters.
• Improve key performance metrics, including open rate, CTR, subscriber retention, and revenue.
• Optimize subject lines, content, layouts, CTAs, and publishing schedules.
• Develop subscriber lifecycle, segmentation, and re-engagement campaigns.
• Own email deliverability, including sender reputation, domain health, authentication (SPF, DKIM, DMARC), IP management, and inbox placement.
• Monitor list quality, suppression, and hygiene to maintain healthy databases.
• Optimize newsletter monetization through advertising, sponsorships, and affiliate placements.
• Conduct A/B tests and analyze campaign performance to improve results.
• Ensure all campaigns meet editorial, branding, and quality standards.
• Collaborate with writers, designers, and internal stakeholders to deliver high-quality newsletters.

• Build scalable processes, documentation, and reporting to support portfolio growth.

   

Requirements

Must Have

• 5+ years of experience in email marketing or newsletter management(managing email campaigns from 100 K each).
• Experience managing high-volume email programs or multiple newsletters.
• Strong understanding of email KPIs, segmentation, automation, and lifecycle marketing.
• Hands-on experience with email deliverability, sender reputation, authentication, and inbox placement.
• Experience optimizing newsletter engagement and monetization.
• Strong analytical, organizational, and project management skills.
• Excellent QA skills and attention to detail.
• Experience using AI tools to improve marketing workflows.
• English proficiency at C1 level or higher.

Nice to Have

• Experience with Substack, Ghost, or similar email platforms.
• Experience with sponsorship, affiliate, or advertising monetization.
• Background in digital publishing or content-led growth.
• Familiarity with email validation tools such as NeverBounce or ZeroBounce.

We're looking for someone who:

• Takes ownership and works independently.
• Thinks strategically and makes data-driven decisions.
• Has a strong commercial mindset.
• Builds scalable processes and continuously improves them.
• Collaborates effectively across teams.
• Pays close attention to detail and quality.
• Thrives in a fast-paced environment.

What We Offer

Professional Growth

• International and multicultural environment.
• Career development opportunities.
• Learning resources and corporate library.
• Opportunity to work with a high-performing team.
• Access to modern tools and AI technologies.

Benefits

• Competitive salary.
• Performance bonuses.
• 21 paid vacation days.
• 14 paid sick leave days.
• Work-life balance.
• Team events and activities.

Working Environment

• Remote or hybrid work.
• Modern office in Warsaw.
• Complimentary snacks and drinks.
• Friendly and supportive team.

We Look Forward to Meeting You!

If you're passionate about building high-performing newsletters and driving measurable business growth through email marketing, we'd love to hear from you.

Who We Are

PAR Retail, with its Open Commerce® product suite and patent pending Wallet Steering® System, empowers Convenience & Fuel Retailers to gain more share of wallet and customer lifetime value than possible with any other solution provider. PAR Retail’s unified Open Commerce product suite consists of: Activate for Intelligent 1:1 Loyalty, Transact for Contactless Commerce, and Experience for Cross-Channel Customer Experiences. PAR Retail’s solutions are supported by a set of subscription-based program management services and are contractually backed by its 1.5X Performance Guarantee.

Responsibilities & Activities

• Build and maintain automated tests for Mobile, Web, and Backend applications;
• Analyse test results, investigate failures, and help drive issues to resolution;
• Collaborate with developers and product teams to ensure high-quality releases;
• Research and evaluate new automation tools, technologies, and industry best practices;
• Use AI-powered tools to accelerate test automation development and maintenance;
• Identify opportunities to automate repetitive QA and engineering workflows.

Experience & Skills You’ll Need

• Proficiency in TypeScript/JavaScript, including experience developing and maintaining automated test frameworks;
• Hands-on experience with Playwright, Appium, Detox, WebdriverIO, or similar automation frameworks;
• Experience working with CI/CD pipelines and automated testing practices;
• Practical experience using AI development tools such as Claude Code, GitHub Copilot or similar platforms;
• Experience using AI to create, maintain, and improve automated test coverage;
• Ability to leverage AI agents to increase productivity and automate routine engineering tasks;
• Strong communication, collaboration, and problem-solving skills;
• Highly proactive, self-driven, and comfortable taking ownership of initiatives with minimal supervision;
• Load and performance testing experience is a plus.

PAR Retail Offers:

- Long-term employment;

- Competitive compensation with regular performance-based salary and career development reviews;

- Paid vacations and sick leaves;

- Flexible working hours;

- A unique and friendly environment where everyone can explore and learn new technologies.

Про проєкт

Шукаємо сильного C++ розробника для розробки та розвитку власного браузера на базі Chromium.

Проєкт пов’язаний з Chromium, browser automation, browser fingerprinting, web security та низькорівневою роботою з браузерним середовищем.

Основні задачі

• Розробка та підтримка власного Chromium fork.
• Збірка, оновлення та підтримка Chromium через GN / Ninja.
• Робота з Blink, V8, Browser Process, Renderer Process та іншими компонентами Chromium.
• Модифікація browser logic та внутрішніх API.
• Інтеграція C++ та JavaScript.
• Робота з browser fingerprinting та browser environment.
• Дослідження Web API та поведінки сучасних браузерів.
• Робота з HTTP/HTTPS, TLS, Headers, Cookies, Proxy та networking.
• Робота з User-Agent, Client Hints, Referer, Viewport, WebGL, Canvas, WebRTC, WebGPU.
• Оптимізація performance, memory usage та stability.
• Робота з multithreading та IPC.
• Аналіз та вирішення складних технічних задач на рівні Chromium.
   

Вимоги

• Від 2 років практичного досвіду роботи з anti-detect браузерами.
• Впевнене знання C++.
• Досвід роботи з великими C++ codebase.
• Практичний досвід роботи з GN / Ninja.
• Розуміння архітектури Chromium або інших browser engines.
• Розуміння Blink, V8, multi-process architecture та IPC.
• Хороше знання JavaScript.
• Глибоке розуміння HTTP/HTTPS, TLS та browser networking.
• Розуміння принципів browser fingerprinting.
• Розуміння User-Agent, Client Hints, Referer, Cookies, Proxy, Viewport, WebGL, Canvas, WebRTC та WebGPU.
• Досвід роботи з Linux або Windows.

Ми пропонуємо

• Віддалена робота.
• Довгостроковий проєкт з цікавими технічними задачами.
• Конкурентна заробітна плата.
• Оплачувана відпустка та лікарняні.
• Мінімум бюрократії та максимум технічної свободи.

N-iX  is looking for an experienced Senior Data Scientist with a strong focus on AI Engineering. The role involves designing and delivering production-ready AI solutions for the insurance industry, with a particular emphasis on Agentic AI, LLMs, RAG pipelines, and Computer Vision.

Key Responsibilities:

• Design and develop autonomous AI agent systems for the insurance domain
• Build production-ready AI solutions using:
  • Multi-Agent Systems
  • Large Language Models (LLMs)
  • Retrieval-Augmented Generation (RAG)
  • Computer Vision
• Research, evaluate, and implement state-of-the-art AI technologies
• Develop scalable AI products for international markets
• Collaborate with a team of Data Scientists and AI Engineers
• Take AI solutions from architecture and proof of concept through production deployment
• Participate in building proprietary AI models for the insurance industry

Required Skills:

• 5+ years of commercial experience as a Data Scientist / AI Engineer
• Strong Python development skills
• Hands-on experience with:
  • Machine Learning
  • Deep Learning
  • Generative AI
  • LLMs
  • RAG architectures
  • AI Agent frameworks
• Experience building production AI systems
• Solid software engineering background
• Experience with data analysis and AI product development
• Degree in Computer Science/Data Science/Mathematics/Physics/Engineering or equivalent technical background
• Upper-intermediate+ English level 
• Strong analytical thinking, proactive mindset
• Ability to design scalable AI solutions
• Ability to explain complex technical concepts
• Independent and structured way of working
• Team player

Nice to Have:

• Experience within the insurance industry
• German or Spanish language skills

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

* benefits package is not applicable for freelancers

Why this role exists:

This role exists to design, build, and maintain streaming data solutions based on Apache Kafka and related technologies, ensuring reliable data processing, integration, and testing of streaming applications.

What you’ll drive:

Streaming pipelines & data flow

• Build and maintain data pipelines using Apache Kafka, including topics, partitions, and consumer group tuning.
• Implement and manage Kafka Connect source and sink connectors for integrations.

Streaming application development

• Design and develop stateful streaming applications using Kafka Streams or Flink with Java (and Scala where applicable).
• Ensure data consistency and schema evolution using Schema Registry (Avro).

Quality & testing

• Write and maintain unit and integration tests for streaming topologies.

What makes you a GR8 fit:

Must-have

• 3+ years of experience in back end.
• Commercial experience in software engineering with strong proficiency in Java (Scala is a plus).
• Understanding of Apache Kafka architecture and internals.
• Experience working with Apache Flink.
• Experience with Schema Registry and schema evolution strategies.
• Knowledge of serialization formats such as Avro and JSON.
• Experience using SQL for processing large datasets.
• Upper-intermediate or higher level of English.

Nice-to-have

• Experience running Kafka and/or Flink on Kubernetes.
• Familiarity with monitoring tools such as Prometheus and Grafana for streaming metrics.
• Understanding of stream processing semantics.
• Experience with CI/CD pipelines for streaming applications.