Jobs at Djinni

At 51 Games, we build browser-first games for millions of players worldwide. We work on live, large-scale products with deep progression systems and open economies.                         

Today, our portfolio brings together 6.5M+ players across 150+countries, processing millions of transactions every month.

Now we’re looking for a Producer to strengthen our team as we continue scaling live products globally.
 

Requirements:

• Proven track record of successful products — a strong portfolio of shipped and commercially successful games is a must;
• Strong product vision — ability to define a clear vision for a product and communicate it in a way that aligns the entire team;
• Strategic thinking — ability to determine the direction of a project ;
• Business-to-product thinking — strong ability to translate business objectives into product strategy, features, priorities, and measurable outcomes;
• Product sense — deep understanding of player motivation, engagement loops, retention, monetization, and overall product-market fit;
• Data-driven mindset — working with analytics, funnels, cohorts, experiments, and player behavior data;
• Strong leadership and communication skills — ability to align cross-functional teams and stakeholders around a common vision and direction;
• End-to-end product ownership — experience taking products from strategy and concept through development, launch, iteration, and growth.

Responsibilities:

• Set the product direction and vision — define where the project should go and why, based on business strategy, market opportunities, and player needs;
• Translate business goals into product development — turn company objectives, revenue targets, and strategic priorities into clear product goals, features, and development priorities;
• Own product KPIs — define, track, and drive the key metrics that determine product success, ensuring development decisions are aligned with agreed KPIs;
• Drive product strategy and roadmap — build and continuously adjust the product roadmap based on data, market trends, player behavior, and business priorities;
• Align the team around the vision — communicate the product vision clearly to game design, development, art, marketing, analytics, and other stakeholders;
• Make product decisions — identify what should be built, what should be changed, and what should be stopped, prioritizing work based on expected impact;
• Connect product development with business outcomes — ensure that features and initiatives are not developed in isolation but contribute to measurable business and product results;
• Own execution at the product level — maintain alignment between strategy, roadmap, priorities, and actual development progress;
• Work with data and experimentation — use analytics, player behavior, market research, and experiments to validate hypotheses and make informed decisions.

Hiring process:
  • Intro call with a Recruiter — Test task — Interview with the Hiring team — Сollection of recommendations — Offer.

Why join 51.games?

We’re builders at heart and gamers by instinct. We love building systems – and we care about how games actually feel to play. Being players ourselves shapes how we design, test and improve what we ship.

Here’s what that means for you:

• Work alongside an experienced team that cares about craft;

• A culture of open discussion, honest feedback and healthy product debates;

• An energetic environment where people stay involved and enjoy what they build;

• Games that grow long-term – and a team that knows how to have fun while building them.

We also support you with:
• Flexible schedule and the option to work remotely or from our hubs in Kyiv, Warsaw, and Berlin;
• Competitive compensation, regular performance reviews, paid vacation, sick leave, and public holidays;
• Modern Apple equipment and thoughtful corporate gifts for holidays and personal milestones;
• Support for your growth: courses, workshops, and conferences.
 

You’ll work on games that grow with their players — evolving through gameplay, systems and community. If this resonates with you – send your CV and join us.
 

We're looking for a Senior Data Platform Engineer to architect and operate data infrastructure across the client's hybrid cloud (AWS + GCP). 

Our client is a fast-growing European fintech company in the business spend management space — corporate cards and related financial products — serving SME and mid-sized business customers across the EU and UK, in a regulated environment with GDPR compliance obligations. Engineering is organized into cross-functional squads, with platform/enabling teams providing shared tooling horizontally.

The client is currently in an AI transformation phase, transitioning to Agentic AI Development, and is seeking a Senior Data Platform Engineer to support this transformation. They run a hybrid cloud setup: AWS-first overall, with GCP (BigQuery as primary data warehouse) for data platform and analytics workloads. The Data Platform Engineer will set up and maintain the data infrastructure (data lakes, pipelines, IAM, observability, cost optimisation) that Data Engineers then use to operate on data. Work is expected to be a mix of existing codebase and new functionality.

Responsibilities:

• Architect and operate data infrastructure across hybrid cloud (AWS + GCP).
• Design data lakes; orchestrate pipelines (e.g. Airflow).
• Manage IAM/access management and cost optimisation.
• Maintain observability across the data platform.
• Work with both BigQuery and AWS data lake patterns (Athena, S3, Glue).
• Multiply the output and quality of the squad you join, and share patterns/practice beyond your immediate team so adoption compounds across the organisation.

• Embed directly into a client squad as a hands-on Individual Contributor (not a coaching/managerial role).

   

Requirements:

• Hybrid cloud: AWS and GCP.
• Data lake design.
• Orchestration, e.g. Airflow.
• IAM/access management.
• Cost optimisation.
• Observability.
• BigQuery and AWS data lake patterns (Athena, S3, Glue).
• Python.

Nice to have:

• Terraform.
• Familiarity with fintech-specific domains such as fraud/AML, transaction monitoring, and regulatory compliance. 

We are a Ukrainian outsourcing company Join.To.IT, founded in 2012, and delivering software solutions across diverse business domains.
We focus on building long-term partnerships with our clients and delivering solutions that create real business impact. Our team consists of experienced professionals who take ownership of their work, value clear communication, and are committed to high standards in everything they do.
At Join.To.IT, we create an environment where engineers can grow, influence technical decisions, and contribute to meaningful projects alongside a strong and supportive team. 

Responsibilities

• Develop and maintain backend functionality primarily using Python
• Work with an additional backend technology/stack depending on project needs
• Support, improve, and scale existing backend projects and solutions
• Design and integrate APIs, services, and backend components
• Participate in project estimation, technical planning, and solution design
• Conduct code reviews and maintain code quality standards
• Collaborate with cross-functional teams to deliver scalable and efficient solutions
• Understand project business logic and translate requirements into technical solutions

Requirements

• 1+ years of commercial experience in backend development
• Strong commercial experience with Python
• Commercial experience with at least one additional backend stack: Node.js/TypeScript, PHP, Java, Go, C#/.NET, or similar
• Intermediate (B1+) English or higher
• Experience with Python frameworks: Django, DRF, and/or FastAPI
• Strong knowledge of databases: PostgreSQL, Redis
• Experience with REST APIs and backend integrations
• Experience using AI-assisted development tools/agents such as Claude Code, Cursor, Windsurf, Codex, Antigravity, or similar
• Familiarity with Docker and basic DevOps practices
• Ability to estimate development tasks and participate in project planning
• Good understanding of business logic and software development processes
• Strong communication and teamwork skills

Nice to Have

• Experience working commercially with 1+ backend languages/stacks
• Basic Frontend knowledge
• Experience with microservices architecture
• Experience with cloud platforms (AWS, GCP, or Azure)
• CI/CD experience

We Offer

• Office-based or remote work format (Kyiv, near Vasylkivska metro station)
• Working hours: 10:00–19:00, Monday–Friday
• Comfortable office with a shelter, Starlink, and uninterrupted power supply
• Medical insurance
• Free gym access near the office
• Paid vacation and sick leave
• Compensation for professional courses and development
• Supportive and loyal management

Bitmedia Labs is an international product company founded in 2014. Today, we’re a team of 150+ specialists working globally, building products used by millions worldwide.

Our work spans two core areas:

Game Development – browser-first games for global audiences, centered on reward-driven progression and long-term engagement.
Digital Advertising – high-performance advertising and affiliate platforms across Web2 and Web3 markets.

We believe great products are built by people who take ownership – shaping direction, making decisions, and seeing their work turn into real impact. Now, we’re looking for Producer to join the team and help us move our products forward.

Requirements:

• Proven track record of successful products — a strong portfolio of shipped and commercially successful games is a must;
• Strong product vision — ability to define a clear vision for a product and communicate it in a way that aligns the entire team;
• Strategic thinking — ability to determine the direction of a project ;
• Business-to-product thinking — strong ability to translate business objectives into product strategy, features, priorities, and measurable outcomes;
• Product sense — deep understanding of player motivation, engagement loops, retention, monetization, and overall product-market fit;
• Data-driven mindset — working with analytics, funnels, cohorts, experiments, and player behavior data;
• Strong leadership and communication skills — ability to align cross-functional teams and stakeholders around a common vision and direction;
• End-to-end product ownership — experience taking products from strategy and concept through development, launch, iteration, and growth.

Responsibilities:

• Set the product direction and vision — define where the project should go and why, based on business strategy, market opportunities, and player needs;
• Translate business goals into product development — turn company objectives, revenue targets, and strategic priorities into clear product goals, features, and development priorities;
• Own product KPIs — define, track, and drive the key metrics that determine product success, ensuring development decisions are aligned with agreed KPIs;
• Drive product strategy and roadmap — build and continuously adjust the product roadmap based on data, market trends, player behavior, and business priorities;
• Align the team around the vision — communicate the product vision clearly to game design, development, art, marketing, analytics, and other stakeholders;
• Make product decisions — identify what should be built, what should be changed, and what should be stopped, prioritizing work based on expected impact;
• Connect product development with business outcomes — ensure that features and initiatives are not developed in isolation but contribute to measurable business and product results;
• Own execution at the product level — maintain alignment between strategy, roadmap, priorities, and actual development progress;
• Work with data and experimentation — use analytics, player behavior, market research, and experiments to validate hypotheses and make informed decisions.

Hiring process:
       • Intro call with a Recruiter — Test task — Interview with the Hiring team — Сollection of recommendations — Offer.

Why join Bitmedia Labs?
We care about what we build — and about the people who build it. Our teams work closely together, share responsibility for the product, and support each other in everyday challenges.

As part of the team, you’ll have:
      • Professional growth through products operating at global scale;
      • The opportunity to experiment, bring ideas to life, and influence product decisions;
      • Collaboration with strong, experienced teammates who value quality and teamwork.
We also support you with:
      • Flexible schedule and the option to work remotely or from our hubs in Kyiv, Warsaw, and Berlin;
      • Competitive compensation, regular performance reviews, paid vacation, sick leave, and public holidays;
     • Modern Apple equipment and thoughtful corporate gifts for holidays and personal milestones;
     • Support for your growth: courses, workshops, and conferences.

Through our charity foundation Bit Spilka, led by volunteers from our team, we support the military, medics, and civilians across Ukraine — delivering over $500,000 in aid to date. Here your work also drives social impact, and you can also join our volunteer initiatives.

If this resonates with you — send your CV and join us.
Let’s foster the world together!

 

VitaUp is building a category-leading supplements brand across Amazon US & EU.

We compete in one of the most complex and competitive categories on Amazon — health & wellness — alongside brands like NOW, Pure Encapsulations, and Nature Made. We already have proven products, strong unit economics, and an established operational foundation. Our next stage is aggressive scaling.

We are looking for a Head of Amazon Growth — a commercially-minded operator, strategist, and leader who understands how to scale Amazon businesses in highly competitive supplement categories.

This role is closer to running a business unit than managing a marketplace account.

You will own Amazon growth end-to-end: category strategy, product launches, profitability, team leadership, operational scalability, and performance execution across US & EU marketplaces.

We are not looking for a coordinator or task manager. We are looking for someone who thinks like an owner, moves fast, understands the numbers behind growth, and knows how to build scalable systems and high-performing teams.

What You Will Own

You will be fully accountable for Amazon business performance:

• revenue growth
• profitability
• launch performance
• operational scalability
• market expansion

• category positioning

   

You will define how products compete, scale, and win within the health & supplements category.

Your responsibilities will include:

• Building and executing Amazon growth strategy across US & EU marketplaces
• Leading end-to-end product launches from market opportunity analysis to post-launch scaling
• Driving performance through data, experimentation, and operational excellence
• Owning P&L decisions and balancing aggressive growth with profitability
• Identifying new growth levers, category opportunities, and expansion potential
• Building scalable processes and operational infrastructure for long-term growth
• Managing forecasting, inventory planning, and supply coordination around growth cycles
• Leading and scaling a cross-functional Amazon team across PPC, design, content, analytics, influencer and affiliate functions
• Creating accountability systems, workflows, and performance standards across the team
• Working directly with founders on strategic growth decisions and long-term scaling initiatives

What We Are Looking For

Proven Amazon Scaling Experience

- You have 5+ years of hands-on Amazon experience with a strong track record of scaling brands or product portfolios.

- You have personally driven products from launch to significant monthly revenue and can clearly explain:

• what you scaled
• how you scaled it
• which levers created growth

• what challenges you solved

   

We are looking for operators, not coordinators.

Supplements / Health Category Expertise

You deeply understand:

• dietary supplements
• wellness products
• customer psychology in health categories
• competitive dynamics

• compliance-sensitive product positioning

   

Experience in supplements, nutraceuticals, wellness, sports nutrition, or adjacent regulated categories is highly preferred.

Strong Commercial & Analytical Thinking

You think like a business owner. You understand:

• profitability
• contribution margin
• TACOS / ACOS
• LTV
• inventory economics
• ranking mechanics
• conversion optimization
• launch velocity

• category strategy

   

You make decisions based on data, not assumptions.

Leadership & Team Management

• You have experience leading and developing cross-functional teams in fast-scaling environments.

• Ideally, you have managed teams of 10+ people across multiple business functions while remaining hands-on and operationally involved.

   

Ownership Mentality

• You are highly autonomous and proactive.
• You do not wait for instructions.
  You identify problems early, make decisions quickly, and create structure where needed.
• You are comfortable operating in high-growth environments where priorities evolve fast.

Compliance & Marketplace Understanding

You understand Amazon policies and the complexity of operating in regulated health categories.

Knowledge of:

• FDA/FTC compliance
• Amazon content policies
• supplement claims

• account health & compliance risks
  is a strong plus.

   

Tools & Platforms 

You are comfortable working with:

• Seller Central
• Brand Analytics
• Helium10
• DataDive
• Sellerboard
• Amazon PPC ecosystems

• analytics and forecasting tools

   

What We Offer

• A key leadership role with direct influence on company growth and expansion strategy
• Full ownership over Amazon US & EU performance
• The opportunity to build and scale a high-growth supplement brand in a highly competitive category
• Direct collaboration with founders and visibility into strategic business decisions
• Freedom to build systems, processes, and scalable growth infrastructure
• Strong existing operational foundation and proven products already performing on the market
• Remote-first work environment with flexibility and high autonomy
• Competitive USD-based compensation with performance-driven upside

If you think like an owner, operate with data, and know how to scale Amazon brands in competitive health categories — we would love to speak with you.

Please send your CV along with examples of brands, listings, or Amazon businesses you have helped scale.

About SKyPRO

SKyPRO has been delivering Identity & Access Management (IAM) solutions for more than 38 years. While we have extensive experience with OpenText Identity Manager, we are continuously expanding into new markets with our own products and modern identity solutions.

One of our flagship products is ACDI (Audit, Compliance & Data Intelligence), a powerful platform that helps organizations collect, analyze, and audit identity-related data across multiple systems.

We're looking for a technically minded person who enjoys working directly with customers, solving problems, and helping improve our product. This is an excellent opportunity for someone who likes combining technical work with customer interaction.

Your Mission

As a Technical Consultant for ACDI, you will support customers throughout the product lifecycle—from demonstrations and installations to troubleshooting and continuous improvements.

Your responsibilities will include:

• Delivering product demonstrations and technical presentations to customers and partners.
• Installing, configuring, and upgrading the ACDI solution in customer environments.
• Providing technical support and troubleshooting product issues.
• Investigating bugs and implementing small fixes or enhancements within the product.
• Assisting customers with integrating ACDI with various data sources, directories, and databases.
• Working closely with the development team to identify, reproduce, and resolve product issues.
• Creating and maintaining technical documentation when needed.
• Participating in customer projects and ensuring successful product deployments.
• Continuously learning new technologies and helping improve both the product and implementation processes.

What We're Looking For

Must have

• Spoken English at B1–B2 level or higher (you will work with international customers).
• 2+ years of experience in a technical IT role (technical support, implementation, consulting, systems engineering, software development, IAM, or similar).
• Experience working with databases, directories, APIs, or system integrations.
• Good troubleshooting and analytical skills.
• Basic to good programming or scripting experience (Java, JavaScript, PowerShell, Bash).
• Understanding of REST APIs, LDAP, SQL, or similar integration technologies.
• Good Linux knowledge.
• Strong communication skills and customer-oriented mindset.
• Ability to work independently and manage multiple tasks.
• Willingness to learn new technologies and grow with the company.
   

Nice to have

• Experience with Identity & Access Management (IAM) solutions.
• Familiarity with OpenText Identity Manager / NetIQ IDM.
• Experience with eDirectory/Active Directory or LDAP directories.
• Linux administration skills.
• Knowledge of Java.
• Experience with Docker or cloud environments.
• German language skills (B1+) are a plus.

What We Offer

• Remote work with flexible working hours.
• Competitive salary based on your experience.
• Personal development through expert coaching and technical training.
• Opportunity to work with innovative IAM technologies.
• An international, open-minded team working with customers worldwide.
• Immediate start.
• 24 calendar days of paid vacation plus paid sick leave.
• Long-term career growth in a company that values technical excellence and innovation.

We are a Ukrainian outsourcing company Join.To.IT, founded in 2012, delivering software solutions across various business domains.

We’re looking for a Manual QA Engineer who is detail-oriented, proactive, and passionate about delivering high-quality software.

We Offer

• Modern office near Vasylkivska metro station with a shelter, Starlink, and uninterrupted power supply
• Standard working hours: 10:00 AM – 7:00 PM (Monday–Friday)
• Opportunity to contribute to QA processes and introduce new ideas
• Free parking for cars and bicycles
• Friendly and supportive team
• Regular performance reviews
• Medical insurance
• Free gym membership near the office
• Compensation for English classes and professional development

Requirements

• 1+ year of commercial experience as a Manual QA Engineer in an outsourcing company
• Intermediate (B1) English or higher, with confidence in client communication
• Good understanding of web application architecture and client-server interaction
• Experience with manual testing of web and mobile applications
• Experience reviewing and testing project documentation
• Experience creating and maintaining test documentation (test cases, checklists, user stories, bug reports)
• Experience testing REST APIs using Postman
• Good understanding of SDLC, STLC, and Agile methodologies
• Experience estimating testing efforts
• Ability to work on multiple projects simultaneously

Responsibilities

• Plan and execute testing activities
• Analyze project requirements and documentation
• Create and maintain test documentation
• Perform manual testing of web and mobile applications
• Participate in team and client meetings
• Prepare test reports and QA metrics
• Contribute to improving QA and development processes
• Perform other QA-related tasks assigned by the Team Lead

We’re looking for a strong UI/UX Designer with 3+ years of experience who can create intuitive, modern product interfaces and actively use Claude / AI tools in daily work.

You’ll work closely with product managers, developers and stakeholders on web and mobile products, from early ideas and user flows to polished UI and design systems.

Requirements

• 3+ years of UI/UX design experience
• Strong Figma skills
• Solid UX and UI fundamentals
• Experience with Design Systems
• Strong understanding of responsive design
• Experience with user flows, wireframes and prototypes
• Ability to work with product metrics and user feedback
• Strong communication and collaboration skills
• Hands-on experience with Claude and other AI tools
• Ability to use AI for research, ideation, UX analysis and workflow automation

• Strong prompting skills and ability to critically evaluate AI-generated results

   

Nice to have

• Basic HTML/CSS/React knowledge
• Understanding of frontend limitations and implementation
• Graphic design skills
• Experience creating presentations and pitch decks

We’re looking for someone who is product-minded, proactive and comfortable experimenting with new AI-powered design workflows.

Please send your portfolio and briefly describe how you currently use Claude or other AI tools in your design process.

We are looking for a Middle Solution Engineer to join our team and support the successful integration and deployment of autonomous systems.
 

In this role, you will serve as the primary technical interface for partners, helping them integrate and deploy software and hardware solutions into their platforms. You will work closely with partners to understand their technical requirements, configure and adapt existing solutions, contribute to software development, and ensure successful implementation.
 

You will collaborate with cross-functional engineering teams to solve complex technical challenges, support product improvements, and help deliver reliable, high-quality solutions. This role is ideal for an engineer who enjoys combining hands-on technical work with customer collaboration and system-level problem solving.
 

Responsibilities:

• Serve as the primary technical point of contact for partners throughout integration and deployment projects
• Integrate partner systems with software and hardware solutions both remotely and on-site
• Configure, customize, and adapt existing solutions to meet partner requirements
• Contribute to the development of software solutions, from standalone applications and plugins to the main software codebase
• Manage software releases, including build preparation, release creation, testing, and resolving release-related issues
• Validate software releases before they are delivered to operational teams
• Collaborate with product and engineering teams to deliver new features and improvements
• Translate partner requirements into clear technical specifications aligned with product capabilities
• Troubleshoot software, hardware, and system integration issues, escalating complex challenges when required
• Support system validation, field testing, and deployment activities
• Contribute to technical documentation and continuous improvement of engineering processes
   

Requirements:

• Hands-on experience with C++ and Python and comfortable working in Linux (Ubuntu)
• Experience with embedded systems, robotics, UAVs, or other autonomous systems
• Experience working with real hardware and integrating software with hardware components
• Understanding of common embedded communication protocols such as CAN, I2C, SPI, UART
• Experience with system integration, testing, debugging, and troubleshooting
• Basic understanding of electronics and system-level interactions
• Strong analytical and problem-solving skills
• Ability to work independently, take responsibility for tasks, and drive them to completion
• Good communication skills and ability to collaborate effectively with engineers and other teams
• Willingness to travel for on-site integration, testing, and deployment activities
   

We Offer:

• Official employment under Ukrainian labor law
• Military booking
• Medical insurance
• Individual English lessons
• Stock Options
• Opportunity to work on cutting-edge UAV systems and grow professionally

Interview process:

• Intro call with recruiter → HR interview → Technical interview → Final interview with the team's leadership → Pre-offer → Security check

We are looking for a Senior Full-Stack Engineer to join our client's team on a long-term, part-time engagement. The role is expected to require approximately 4 development days per month, with the potential for ongoing collaboration.

You’ll be working across the full stack, developing and maintaining modern web applications using Nuxt, Node.js, TypeScript, and Tailwind CSS.

This role is ideal for an experienced and self-sufficient engineer who is comfortable working independently, taking ownership of assigned tasks, and contributing effectively with limited supervision.

Key Responsibilities:

• Develop and maintain modern full-stack web applications using Nuxt, Node.js, and TypeScript
• Build responsive and reusable user interfaces using Tailwind CSS
• Develop and maintain backend functionality and API integrations
• Work across both frontend and backend parts of the application
• Troubleshoot technical issues and independently research effective solutions
• Take ownership of assigned tasks and deliverables
• Ensure code quality, maintainability, and reliability
• Collaborate with the client's team to understand requirements and implement effective technical solutions

Requirements:

• 5+ years of commercial software development experience
• Strong hands-on experience with Nuxt and Node.js
• Solid experience with TypeScript
• Strong experience with Tailwind CSS
• Good understanding of both frontend and backend development
• Ability to work independently with minimal supervision
• Strong problem-solving and analytical skills
• Good communication skills and a proactive approach

• Good command of English, both written and spoken

   

Nice to Have:

• Experience working in startup or fast-paced environments

   

What We Offer:

• Long-term, part-time engagement of approximately 4 development days per month
• Opportunity to work with a modern Full-Stack technology stack
• High level of ownership and autonomy
• Flexible and remote working environment
• Opportunity for ongoing collaboration
• Competitive compensation

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. 

Requirements:

•  3+ years of experience in high-volume email/CRM deliverability (experience with multiple domains and markets is a plus);
• Strong proficiency in Customer.io or a comparable platform at an architectural level going beyond simple email assembly;
• Solid understanding of DNS and SPF/DKIM/DMARC - not just knowing the acronyms, but having hands-on experience configuring records and analyzing DMARC reports;
• Experience building triggered/lifecycle campaigns from scratch;
• English proficiency sufficient for reading technical documentation.

Responsibilities:

•  Own the domain architecture (primary/reserve per channel); configure, monitor, and troubleshoot SPF/DKIM/DMARC across all sending domains;
• Monitor sender reputation via Google Postmaster Tools, DMARC reports, and blacklist checks; diagnose root causes and resolve deliverability drops;
• Manage warming schedules for new, recovering, and unverified-audience domains; design and own dedicated infrastructure for safely re-engaging deep-churn segments without risking core domain reputation;
• Define when and how diagnostic inbox-placement testing is triggered, interpret findings, and translate results into infrastructure and content decisions across markets - execution can be delegated, ownership of the methodology and knowledge base stays with this role;
• Launch trigger-based lifecycle campaigns; architect segmentation on top data; run A/B tests on mechanics and content within flows;
• Own technical architecture for new channel rollouts end-to-end - from writing specs to navigating platform-level technical constraints with the dev team to final acceptance;
• Maintain stop-word and content guidelines per market/language; manage budgets for warming and validation tooling; design and implement the alerting system for infrastructure health of channels.

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.

Our client is building and maintaining software systems where reliability, data protection, and secure user flows are critical. The security function is not limited to checking whether features and data are secure. The team also needs someone who can actively challenge the system, identify weak points, verify security assumptions, and help prevent vulnerabilities before they reach production.

We are looking for a Cyber Security Engineer who can work closely with infrastructure, engineering, and product teams to test web applications, APIs, authentication flows, permissions, infrastructure exposure, and overall application security.

This is a hands-on role. The main expectation is to find real risks, reproduce them clearly, document them properly, and help the engineering team validate that fixes are effective. Role We are looking for a Security Engineer who will take ownership of security testing and tightening across application, API, and platform layers.

This person should be comfortable working as part of a delivery governance team while bringing deeper security expertise into the team. The role requires practical knowledge of penetration testing, vulnerability assessment, secure testing methods, and clear communication with developers.

Key Responsibilities

• Perform manual security testing of web applications, APIs, user flows, and admin panels.
• Conduct penetration testing against staging and production-like environments.
• Identify, reproduce, document, and validate security vulnerabilities.
• Test authentication, authorization, permissions, session management, password flows, and access-control logic.
• Review API endpoints for broken access control, injection risks, data exposure, rate-limit issues, and insecure design.
• Validate security fixes and perform regression security testing.
• Work with QA engineers to include security checks in the regular testing process.
• Prepare clear reports with reproduction steps, evidence, severity, impact, and recommended remediation.
• Collaborate with developers to explain vulnerabilities and verify that fixes address the real issue.
• Support threat modeling and security review of new features when needed.
• Help improve security awareness and testing standards inside the team.

Required Experience

• 5+ years of experience in penetration testing, application security, security QA, or ethical hacking.
• Strong understanding of OWASP Top 10 and common web application vulnerabilities.
• Experience testing REST APIs and web-based systems.
• Practical experience with authentication and authorization testing.
• Ability to discover, reproduce, and explain vulnerabilities clearly.
• Experience using security testing tools such as Burp Suite, OWASP ZAP, Nmap, Wireshark, Metasploit, or similar.
• Understanding of HTTP, HTTPS, cookies, headers, sessions, JWT, OAuth2, MFA, and role-based access control.
• Ability to write simple scripts or proof-of-concept checks when needed, preferably in Python.
• Strong documentation skills and ability to produce actionable vulnerability reports.
• Good communication skills and ability to work directly with engineering and QA teams.
• Upper-intermediate or better English for written and spoken communication.

Nice to Have

• Experience with cloud security testing, especially AWS, Azure, or GCP.
• Experience with Docker, Kubernetes, CI/CD pipelines, and infrastructure security basics.
• Experience with mobile application security testing.
• Experience with secure code review.
• Experience with SAST, DAST, dependency scanning, and security automation.
• Bug bounty experience or responsible disclosure background.
• Security certifications such as OSCP, PNPT, eJPT, CEH, GWAPT, or similar.
• Experience working in product teams rather than only external consulting environments.

What Success Looks Like

• Security issues are found early and described clearly.
• Developers can reproduce and fix reported vulnerabilities without confusion.
• QA coverage becomes stronger because security checks are included in regular delivery.
• Authentication, authorization, and API risks are actively tested before release.
• Security findings are prioritized by real impact, not just tool output.
• The team gains practical confidence that critical user flows and sensitive data are protected.

EU Remote | Full-time | B2B / Ukrainian FOP | German Client

We’re looking for a Senior SAP S/4HANA Business Analyst (FI/CO) to join a full-time transformation project for an international client based in Germany.

The project is focused on the next stage of the company’s SAP S/4HANA transformation -  shaping how Finance teams, responsibilities, processes, and capacity should be organized within the new environment.

This is a transformation-focused role with direct involvement in defining the post-S/4HANA operating model, rather than day-to-day SAP support.

What you’ll work on

• Analyze FI/CO business processes within the S/4HANA environment
• Gather and structure requirements from business stakeholders
• Support AS-IS / TO-BE analysis and identify gaps and improvement opportunities
• Help define future Roles & Responsibilities (R&R) and ownership across teams
• Contribute to the Capacity Management strategy, including resource and workload planning
• Translate Finance and business needs into clear functional requirements and recommendations
• Facilitate discussions between business, Finance, and technical teams

• Prepare documentation supporting future operational and organizational decisions

   

What we’re looking for

• Strong hands-on experience with SAP S/4HANA
• Solid functional expertise in SAP FI/CO and Finance processes
• Experience as an SAP FI/CO Functional Consultant, SAP Business Analyst, or similar
• Experience with S/4HANA implementation, migration, or transformation projects
• Strong business process analysis and requirements-gathering skills
• Experience working directly with business stakeholders and cross-functional teams
• Ability to independently analyze complex requirements and turn them into practical solutions
• Good English communication skills

Nice to have

• Experience with R&R, RACI, or operating model design
• Experience with Capacity Management, resource planning, or workload planning
• German language skills

Why join this project?

You’ll work on a business-critical S/4HANA transformation where your expertise will influence how Finance processes, responsibilities, and resources are structured after the transition.

It’s an opportunity to work beyond standard SAP delivery and contribute to business processes and operating-model decisions alongside international stakeholders.

Project setup

• Client: Germany
• Location: EU-based candidates only
• Work format: 100% remote
• Engagement: Full-time
• Contract: B2B / Ukrainian FOP
• Language: English; German is a plus

If you have strong SAP S/4HANA FI/CO expertise and enjoy combining SAP knowledge with business analysis and transformation work, we’d be happy to hear from you.

Senior Full Stack Engineer with 10+ years of experience needed for a global project in defense AI technologies.

     Requirements:

• 10+ years of experience
• Strong fundamentals in data structures, algorithms, and problem-solving
• Language-agnostic mindset – comfortable learning new languages as needed
• Python + JavaScript/TypeScript (React preferred)
• Depth of knowledge over breadth of tools
  
  Conditions:
• B2B Freelance contract
• Full Remote
• 12+ months duration

• ASAP start date
   

  Project:
  Global project in the area of defense AI technologies.