Jobs at Djinni

About the role

Are you ready to take your Java expertise to the next level? Join our team to work with a highly scalable, highly available, real-time advertising platform that serves millions of users worldwide and handles massive real-time data at scale. We are hiring a Software Engineer to be a vital part of this mission. If you bring extensive experience building complex systems, love great technology at scale, jumping in, and figuring things out in any system, this role is for you! Working in a modern, cloud-native environment, you’ll collaborate with a team of top engineers to develop low-latency, distributed systems capable of handling millions of QPS. This is an opportunity to combine innovation, performance engineering, and large-scale impact - while shaping the future of digital entertainment technology.
 

About the project

Our client is a leading streaming service based in the United States. With millions of users worldwide, its devices provide easy access to free TV, live news, sports, movies, etc. The client has an advertising business and also licenses its hardware and software to other companies.
 

Who are we looking for?

Skills & Experience

• 4+ years of experience building large scale and low latency distributed systems
• 5+ years of Java backend development experience;
• Solid understanding of algorithms, data structures, performance optimization techniques, object-oriented programming, multi-threading, and real-time programming 
• Experience with distributed caching, SQL/NO SQL, and other databases is a plus 
• Experience with Big Data and cloud services such as AWS/GCP is a plus
• Experience in advertising domain a big plus 
• Self-motivated individual with a high level of accountability and ownership
• Critical thinking and practical decision making
• Can do, results-oriented mindset
• Software development best practices: test-driven development, automated testing;
• Knowledge of distributed systems architecture and service oriented systems;

• English: B2+

   

Nice to have

• Familiarity with machine learning frameworks (e.g., TensorFlow, PyTorch) and working with large language models (LLMs)

   

Responsibilities

• Develop and maintain complex backend services
• Collaborate with cross-functional teams (Product, Design, QA) to deliver high-quality features;
• Write unit, integration, and end-to-end tests;
• Maintain and extend existing services to meet new requirements;
• Participate in code reviews and contribute to technical discussions;
• Help maintain technical documentation;
• Assist in improving CI/CD pipelines;
• Contribute to best practices within the development team.

Iterasec works with clients worldwide, helping them find vulnerabilities and secure their products. Our projects range from mobile/web applications to complex modern cloud and automotive stacks. We work with both small product companies as well as Fortune 500 enterprises.

We are looking for a Middle/Senior Security Consultant / Penetration tester to work on and lead penetration testing and vulnerability/cloud security assessment projects.

In this role, you will work on technically challenging projects and also spend some time leading/mentoring our junior pentesting colleagues.

Required skills

- 1.5+ years of intensive commercial experience

- OSCP, eWPTx2 or similar would be a plus

- Scripting/coding skills and being comfortable with advanced pentesting tooling

- Strong knowledge of mobile/web security

- Comfortable with cloud and container security

- Basic RE skills

- Ability to mentor/lead colleagues

- Strong ability and drive to learn and develop cybersecurity skills

- Technical English (Intermediate+)

We offer

- Good salary + bonus system

- Diverse project portfolio and technologies to work with

- Rewarding environment: brilliant team ready to share knowledge and collaborate

- Courses and conferences which are relevant to the position are sponsored by the company.

- We are a remote-first company with full WFH support and a flexible work schedule.

Responsibilities

- Participate in various pentesting projects

- Lead junior colleagues

- Perform threat modeling in pentesting and security assessment projects

- Create assessment documentation and reports, clearly identifying vulnerabilities and associated remediation steps

- Consult clients on efficient issues remediation

- Conduct security researches

- Develop tools and scripts to automate and improve current pentesting processes

Iterasec works with clients worldwide, helping them find vulnerabilities and secure their products. Our projects range from mobile/web applications to complex modern cloud and automotive stacks. We work with both small product companies as well as Fortune 500 enterprises.

We are looking for a talented and motivated Junior Pentester who will join our security team to work on penetration testing and vulnerability/cloud security assessment projects.

We expect a short motivation letter where you can explain your skills, achievements and motivation.

Required skills

- Solid non-commercial cybersecurity experience, such as HTB/THM

- Junior-level cybersecurity certifications would be a plus.

- Comfortable with basic application security testing and common vulnerabilities (like OWASP Top 10, CWE Top 25) and cybersecurity fundamentals

- Strong basic IT skills: Linux, networking (TCP/IP, DNS, HTTP etc.)

- Some experience in scripting/coding languages, such as Java, JS, Python, Shell, etc.

- Strong drive to learn and develop cybersecurity skills

- Technical English (Intermediate)

We offer

- Good salary + bonus system

- Rewarding environment: brilliant team ready to share knowledge and collaborate

- Support in obtaining professional certifications, such as BSCP, OSCP, eWPTX, cloud certifications, etc.

- Courses and conferences which are relevant to the position are sponsored by the company.

- We are a remote-first company with full WFH support and a flexible work schedule.

Responsibilities

- Execute penetration tests and security assessments as part of a team, including internal/external networks, web and mobile applications, Windows and Linux environments, cloud architectures, IoT devices, and more

- Create assessment documentation and reports, clearly identifying vulnerabilities and associated remediation steps

- Conduct security research

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 looking for a Community Manager to join our team!

Requirements

• 2+ years of experience in Community Management, Employee Experience, Internal Communications, CSR, Employer Branding or a related field.
• Community Building: Proven track record of building, growing, and scaling internal communities, interest groups, or Ambassador/Champion Programs from the ground up.
• CSR & Volunteering Programs: Hands-on experience designing, organizing, and managing corporate social responsibility initiatives, volunteering programs, and charitable campaigns.
• Cross-Functional Project Management: Proven ability to lead cross-functional initiatives and collaborate effectively with HR, Compensation & Benefits (C&B), Internal & External Communications, Legal, Finance, and business stakeholders to deliver impactful programs.
• English Intermediate+.

Responsibilities
– Develop and scale the internal communities initiatives.
– Design and improve Community Leader and Ambassador programs.
– Own the roadmap for Communities & CSR initiatives.
– Plan and launch specialist community activities and engagement campaigns.
– Coordinate CSR and volunteering initiatives across the business group.
Analyze participation, engagement, and community health metrics.
– Gather specialist feedback and continuously improve community programs.
– Cross-functional collaboration across the Business Group to maximize specialist engagement and the impact of initiatives.

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;

🗣Free internal English courses;

🧘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.

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 looking for an Internal Engagement Manager (Gamification) to join our team!

Requirements

• 3+ years of experience in Employee Experience, Product Management, Engagement, Gamification, Internal Communications, Employer Branding or a related field.
• Portfolio of Engagement Initiatives: Proven experience designing and launching digital engagement initiatives, gamification mechanics, interactive campaigns, or specialist recognition programs. Ability to showcase successful projects or case studies is highly preferred.
• Gamification Expertise: Strong understanding of gamification principles and mechanics (e.g., quests, achievements, points, levels, leaderboards) and the ability to apply them to drive specialist engagement and support business objectives.
• Cross-Functional Project Management: Experience leading end-to-end initiatives and collaborating with Product, Engineering, Design, HR, and Communications teams to successfully deliver new features, campaigns, or specialist experiences.
• Product Discovery & User Research: Experience conducting specialist research through interviews, surveys, workshops, or feedback sessions, translating insights into product improvements, and validating new ideas through experimentation.
• English Intermediate+.

Will be plus

• Experience designing loyalty, rewards, or gamification systems: Understanding of behavioral psychology principles and motivation frameworks that drive user engagement and participation.
• Knowledge of behavioral psychology or motivational frameworks: Understanding of how reward and loyalty programs work, whether in e-commerce, digital products, or internal specialist recognition initiatives.
• Experience with digital platforms and engagement products: understanding of the fundamental principles of UX/UI and digital product development, with the ability to collaborate effectively with Product Design, and Engineering teams.

Responsibilities

– Develop and execute the strategic roadmap for gamification and recognition programs, driving specialist engagement while strengthening Business group culture and reinforcing the values.
– Design and improve quests, achievements, rewards, and engagement mechanics.
– Develop and optimize the internal recognition framework.
– Analyze user behavior, engagement metrics, and platform adoption.
– Conduct user research and validate new engagement hypotheses.
– Coordinate implementation across Product, Engineering, Design, HR, Internal Communications, and other cross-functional teams
– Continuously improve gamification mechanics based on data and specialist feedback.

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;

🗣Free internal English courses;

🧘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.

Job Description

Required Hard Skills (The "Must-Haves")

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

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

· Windows Internal Knowledge: Deep understanding of:

• IRQLs (Interrupt Request Levels) and DPC/Dispatcher mechanics.
• Memory Management (Paged vs. Non-Paged pool, MDLs).
• Synchronization primitives (Spinlocks, Mutexes, Pushlocks).

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

· EDR/Security Driver Experience: Familiarity with:

• ObCallbacks (ObRegisterCallbacks).
• Process/Thread/Image Load Notify routines (PsSetCreateProcessNotifyRoutineEx, etc.).
• Avoiding deadlocks when injecting logic into high-frequency system paths.

Preferred Skills (The "Nice-to-Haves")

· Reverse Engineering: Proficiency with IDA Pro or Ghidra to analyze potential conflicts with third-party drivers (e.g., Antivirus conflicts causing the crash).

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

· WHQL/WHCP: Experience with the Windows Hardware Compatibility Program signing process (in case the fix requires re-certification) and Microsoft Virus Initiative program

Job Responsibilities

Write kernel and Driver software that can reach the internals of the operating system.

· Implement novel collection and protection techniques.

· Write robust driver infrastructure.

· Optimize for extreme performance constraints.

· Research uncharted territories of the Windows kernel, drivers, APIs, and internal mechanisms.

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

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

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

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

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

Department/Project Description

Our clients is an endpoint security company looking for an expert-level Windows Kernel Driver Specialist to assist engineering team in developing next generation Endpoint Detection and Response (EDR) agent. We are looking for an experienced individual to join a team that is responsible for developing our cutting-edge collection, prevention and protection technologies using both documented and undocumented proprietary kernel mode techniques.
The team develops the core kernel technologies for a wide variety of products, from EDR to next-gen AV, including work that encompasses many aspects of kernel development, from infrastructure through filter drivers to function hooking, to name a few.

Yonik is a mobile play-and-earn app on Google Play. Players earn coins through mini-games, duels and tournaments. We have growing users and we got there without paid ads. Now we want to grow in Europe and Asia so we need someone who knows how to get creators talking about us.

What you will do

• Find and reach out to YouTubers, TikTokers and Telegram channel owners
• Explain Yonik to them and get them to promote it
• Bring them into our creator program and keep them active
• Track which creators bring real active users and share a short weekly report

Who we are looking for

• You have run influencer or KOL campaigns before, ideally for mobile games, tap-to-earn or Telegram apps
• You already have contacts with creators or channel owners
• You can show real results we can check
• Good English, and another language is a big plus
• You are self-driven and comfortable working remote

Pay
We start with a 3-month trial. After the 3 month trial the salary will go up to $1,500 to $2,500 based on discussion and if passing the performance review of the 3-month trial.

• $300 per month base
• Milestone bonuses for active users you bring in.
• Performance bonus for every creator who stays active and keeps bringing users.

 Lead Customer Support & Fulfillment

About Celtara

Celtara is a US-based D2C health & wellness brand creating functional products designed to support everyday well-being.

Our products are ready-to-eat superfood blends made with thoughtfully selected ingredients and formulas developed with nutritionists and herbalists. Each blend is focused on supporting a specific area of health, such as gut health, liver health, metabolism, or immunity.

Our approach combines nature, science, and transparency, with products designed to be simple to use and easy to integrate into a daily wellness routine.

About the Role

We are looking for a Customer Support & Fulfillment Lead to take ownership of our customer support and fulfillment operations.

This role combines team coordination, analytics, process improvement, and hands-on operational work. You will help ensure that customers receive high-quality support, orders are processed smoothly, and internal processes continue to improve as the brand grows.

What You’ll Do
 

• Lead day-to-day Customer Support & Fulfillment operations and help organize the team’s workload.
• Monitor key support metrics, including First Response Time, Resolution Time, backlog, and CSAT.
• Oversee fulfillment performance and help resolve delayed, stuck, lost, or problematic orders.
• Track chargebacks, refunds, win rates, and recurring customer issues.
• Analyze operational challenges and help identify practical solutions.
• Support and develop Customer Support team members through regular feedback and guidance.
• Improve customer service policies, Saved Replies, SOPs, and internal workflows.
• Coordinate with warehouses, fulfillment partners, and external service providers.
• Prepare clear reports on key metrics, current challenges, and ongoing improvements.
• Help evaluate team workload and identify when additional resources may be needed.
• Keep relevant stakeholders informed about important issues, risks, and progress.

What We’re Looking For
 

• 3+ years of experience in Customer Support, Customer Experience, Operations, or Fulfillment.
• Previous experience as a Team Lead, Senior Specialist, Supervisor, or in a role with ownership of processes or a small team.
• Strong e-commerce experience, ideally in a Shopify-based business.
• Experience supporting or managing Customer Support agents.
• Good understanding of Customer Support metrics and service quality.
• Experience with fulfillment, shipping, warehouses, and order management.
• Experience with chargebacks, refunds, disputes, and customer claims.
• Strong analytical and problem-solving skills.
• Confidence working with Google Sheets / Excel.
• Experience creating or improving SOPs, policies, and operational processes.
• English - B2+.

You’ll Be a Great Fit If You
 

• Enjoy taking ownership of your area and improving the way things work.
• Feel comfortable working independently while staying closely connected with the team.
• Like working with data and using it to understand what can be improved.
• Naturally look for practical solutions when challenges come up.
• Are organized and comfortable managing several priorities at once.
• Communicate clearly and keep others informed about progress and important updates.
• Enjoy building processes in a growing, fast-moving environment.
• Care about both customer experience and strong operational results.

What We Offer
 

• Competitive salary + performance-based bonuses.
• Fully remote work with a flexible schedule.
• Opportunity to work with a dynamic, fast-growing team.
• Supportive and friendly team environment.

About the Company
 

BITTE is a growing e-commerce brand operating in the Health & Wellness space in the U.S. market.
 

Our main product is a functional Soursop Bitter Shot made with soursop and botanicals, designed to support digestion, gut health, liver function, and overall wellness.
 

As the brand continues to grow, we are expanding our team and building strong internal processes to support further growth.

To support this growth, we are looking for a Shopify Technical Specialist who will be responsible for configuring, optimizing, and maintaining our Shopify store while ensuring a seamless customer experience.
 

About the Role
 

As a Shopify Technical Specialist, you will be responsible for configuring, optimizing, and maintaining our Shopify store to ensure smooth operations and an excellent user experience.
 

You will play a key role in store setup, technical improvements, and UX optimization, helping us scale our e-commerce operations efficiently.
 

Expect diverse technical challenges, cross-functional collaboration, and opportunities to grow your Shopify expertise while working with a fast-growing brand.
 

Who We’re Looking For
 

- Structured Approach
You can organize processes and keep operations under control.

- Technical Expertise
You have strong hands-on experience with Shopify, including store setup, theme customization, integrations, and technical optimization.

You are comfortable working with Liquid, HTML, CSS, and JavaScript and can independently handle technical changes and troubleshoot Shopify issues.

Experience with GA4, GTM, Triple Whale, Recharge, Klaviyo, Zendesk, or BigQuery is a strong advantage.

- Proactive Mindset
You don't wait for instructions - you identify problems and implement effective solutions independently.

- Results-Oriented
You focus on ensuring the website runs smoothly, efficiently, and maximizes conversions.

- Attention to Detail
You notice small details, work with precise data, and constantly look for ways to improve processes.

Your Responsibilities
 

Product & Content Management

• Create and edit product listings
• Manage product variations, inventory, and pricing
• Organize collections
• Maintain the Shopify blog
• Optimize landing pages for promotions

Design & UX Optimization

• Customize Shopify themes and templates
• Optimize layouts using HTML/CSS/JS
• Install and test Shopify apps
• Improve site structure and UX

Order & Customer Management

• Process orders and track order statuses
• Manage returns
• Handle customer inquiries and reviews

Payments & Shipping

• Configure payment gateways
• Optimize shipping processes
• Configure tax settings

Marketing & Promotions

• Implement SEO optimizations
• Manage ad integrations and improve site speed
• Support email marketing automation
• Set up and monitor promotions
• Collect reviews and UGC

Technical Maintenance

• Monitor website performance and updates
• Maintain security and integrations
• Manage backups

Analytics & Reporting

• Track sales, conversions, and KPIs
• Analyze ad campaigns and promotions
• Prepare reports

Collaboration with Teams & Partners

• Work with marketing, logistics, and accounting teams
• Coordinate with agencies, freelancers, and suppliers

Documentation & SOPs

• Develop and maintain SOPs
• Audit and update legal documents when necessary

It’s a Plus If You Have
 

• Experience with Shopify Plus, Metafields, Metaobjects, or checkout customization
• Experience with subscription models and LTV analytics
• Experience integrating Shopify with marketplaces
• Knowledge of multi-language and multi-currency Shopify setups

What We Offer
 

• Competitive salary
• Fully remote work with a flexible schedule
• Opportunity to collaborate with a passionate and dynamic team
• Cross-functional experience across different projects
• Supportive, friendly team atmosphere

Sii Ukraine is a subsidiary of Sii Poland — the leader in IT, engineering, and consultancy services with over 7500 IT experts in Poland and more than 250 prestigious customers. We are looking for ambitious and top-quality professionals to join our project teams.

We are looking for a Senior Big Data Developer to join a project focused on building data-driven solutions and integrations using the Databricks platform.

You will work on backend logic, API integrations and application components within Databricks Apps, contributing to scalable and maintainable solutions that integrate with enterprise systems and procurement processes.

Responsibilities:

• Develop and maintain applications and data solutions using Databricks
• Build and configure Databricks Apps, Workflows, Delta Lake and Unity Catalog
• Develop backend logic using Python, including routing, validation and business logic
• Design and implement integrations with external systems through REST APIs
• Work with JSON, OAuth 2.0 and API-based content routing
• Develop application interfaces using Streamlit or React within Databricks Apps
• Implement and maintain data and API integration flows
• Write unit and integration tests to ensure solution quality and reliability
• Use Git and CI/CD practices for development and deployment
• Implement logging, monitoring and troubleshooting mechanisms
• Collaborate with other developers, architects and business stakeholders

• Contribute to technical decisions and continuous improvement of the solution

   

Requirements:

• Strong commercial experience as a Big Data / Data / Software Developer
• Hands-on experience with Databricks
• Practical knowledge of:
  • Databricks Apps
  • Databricks Workflows
  • Delta Lake
  • Unity Catalog
• Strong Python skills, particularly for backend development
• Experience with REST APIs, JSON and OAuth 2.0
• Understanding of API-based content routing
• Experience with Streamlit or React
• Good understanding of software engineering practices
• Experience with Git and CI/CD
• Experience writing unit and integration tests
• Experience with logging, monitoring and troubleshooting
• Ability to work independently and communicate effectively with technical and business stakeholders
• English at a level sufficient for working in an international environment
• Tax residence in Ukraine required

Nice to Have:

• Experience with E-Invoicing solutions
• Knowledge of SAP Ariba
• Experience integrating with ERP or procurement systems
• Knowledge of UBL / PEPPOL
• Experience working with enterprise integration platforms

NuxGame is a B2B iGaming technology provider. We deliver turnkey casino and sportsbook platforms, game aggregation, and sweepstakes products to operators worldwide, across four product lines: Turnkey Traditional, Sweepstakes Turnkey, Game Aggregation, and Sweepstakes Game Aggregation.

Our customers are operators. Their back office teams work in our platform every day, and their players use it every time they deposit, verify their identity, or withdraw.

We are looking for a Product Manager to join our Finance Team. You will own everything on the platform that touches money, player identity, and player protection—spanning seven product domains with one dedicated engineering team behind you.

What You Will Do

• Payments and PSP
  • Own the payment roadmap across all four product lines and decide what gets built, what gets configured, and what gets refused.
  • Own the internal payment gateway as a product: integration contract, provider onboarding, error handling and retries, logs, and the tooling support uses to investigate a stuck transaction.
  • Own the technical and product side of PSP relationships and work with our PSP Manager, who owns commercial terms and provider selection.
  • Drive deposit and withdrawal conversion: cashier UX, method visibility and ordering, error minimisation, hosted versus platform side flows, retry and cascading logic.
  • Own crypto and Web3 coverage: networks, confirmations, on ramp providers, wallet based authorisation and deposits.
  • Shorten the time it takes to launch a new provider by standardising the integration, so a new PSP becomes configuration rather than custom development.
• Fraud, KYC and Compliance
  • Own the fraud and risk engine: rules and thresholds, risk scoring, verification flows, duplicate account and bonus abuse detection, manual review load.
  • Own third party KYC and AML integrations end to end, from provider evaluation and platform requirements through rollout to operators.
  • Turn licensing and jurisdictional requirements into configurable platform capability instead of per operator custom work.
  • Hold the balance between fraud prevention and conversion, and defend where you put the threshold.
• Auth and Identity
  • Own registration and login as a conversion product, including social and Web3 registration.
  • Own the relationship between authentication and verification: what a player can do before KYC, what unlocks after it, and how that differs by jurisdiction and by operator.
  • Own back office authentication, permissions, and audit logs as an operator facing product.
• Segmentation
  • Own segmentation as a shared service: how segments are defined, evaluated, and consumed across payments, limits, verification, and reporting.
  • Make it usable by operators without engineering involvement: rule builder, preview and validation before a segment goes live, predictable behaviour when several segments match one player.
  • Own the cost side of it: evaluation performance on large player bases and what happens when a segment changes mid-session.
• Reporting, Limits and Responsible Gambling
  • Own operator facing financial reporting, dashboards, and export tooling.
  • Own the limit framework (deposit, loss, wager, session) and geo blocking as jurisdiction aware, operator configurable capability.
  • Own the responsible gambling toolset and make sure it satisfies the licences our operators hold.

What We Expect From You

• You own the roadmap for your domains and you defend it. Prioritisation is your call to make and to explain, not something you escalate by default.
• You write specifications that an engineer can build from without a business analyst in between: scope and non scope, flows, edge cases, dependencies, acceptance criteria.
• You work with data yourself. You define the metric, pull the number, and check it before you act on it.
• You go deep on the technical side. You read API documentation, review integration contracts, and hold your own in a discussion with engineers.
• You design for many operators at once. Every decision is a decision about configuration, defaults, and backward compatibility, not about a single customer.
• You close the loop after release. A feature that shipped and moved nothing is not a delivered feature.

Requirements

Must Have

• 5+ years in product management, with at least 3 years owning payments, fraud and risk, or financial products in iGaming, fintech, or payments.
• Hands on experience with PSP and payment aggregator integrations: REST APIs, request and response construction, webhooks and callbacks, idempotency, status and error mapping, reconciliation.
• Practical understanding of the trade offs between hosted payment pages, iframe, and fully platform hosted cashier flows, including where PCI scope, conversion, and support load land in each.
• Experience with several payment method families: cards, e-wallets, bank transfer and local rails, vouchers, and crypto (networks, confirmations, on ramp providers).
• Experience integrating KYC and AML providers, and owning or building a rule based fraud or risk engine.
• Experience with rule based configuration and player segmentation: defining segments, resolving conflicts between overlapping rules, and giving business users a safe way to change them without a release.
• Working knowledge of the regulatory requirements affecting deposits, withdrawals, KYC, and responsible gambling in at least two or three jurisdictions.
• Data fluency: deposit success rate, approval rate by provider and method, withdrawal processing time, chargeback rate, verification funnel conversion. You can pull these yourself.
• B2B product experience. Our users are operators and their back office staff, not only end players.
• Structured written communication in English. Russian or Ukrainian for internal team communication.

Nice to Have

• Experience in a multi tenant white label platform serving dozens of operators at once.
• Sweepstakes or social casino experience, where purchase and redemption flows differ from classic deposit and withdrawal.
• Experience with payment orchestration platforms, smart routing, and cascading.
• Experience with Metabase or a comparable BI stack, and enough SQL to validate a number.
• Practical use of AI tooling in the product workflow for discovery, documentation, and analysis.

What We Offer

• Full ownership of a product area that directly moves revenue for dozens of operators, with a dedicated engineering team behind it.
• A direct line to the CPO and to top management. Decisions here take days, not quarters.
• Remote work with a distributed team, or an office in Limassol if you prefer one.
• Competitive salary, flexible hours, and paid time off.

We work with iGaming operators of all sizes to help them expand into new markets or strengthen their existing brands. As a casino software company, we provide solutions that help build outstanding brands and achieve business goals. And now we are looking for a Technical Writer to join our team.

What will be your responsibilities:
• Create and maintain high-quality documentation: how-to guides, release notes.
• Simplify complex information into clear and structured content.
• Work closely with the Technical Writing Team Lead to improve documentation standards and participate in planning and content lifecycle management.
• Collaborate with engineering, DevOps, QA, product, and support teams to gather information and validate documentation accuracy.
• Use generative AI tools to assist with proofreading documentation and checking if all is written in accordance with the standard.
• Deliver documentation in sync with timelines.

What we expect from you:
• 1+ years of proven experience as a Technical Writer or in a related role in software or SaaS environments.
• Excellent written English (С1), conversational (B2);
• Solid knowledge of the Software Development Life Cycle (SDLC), Agile/Scrum methodologies, and iterative product development.
• Practical experience using AI tools (e.g., ChatGPT, Claude, Gemini) for writing assistance, prompt creation, and content acceleration.
• Excellent attention to detail, analytical thinking, proactive mindset, ownership of deliverables, and ability to work independently under deadlines.
• You can share a writing portfolio as part of the hiring process.

It’ll be a plus:
 

• Familiarity with UX writing and the ability to craft microcopy, UI text, and contextual help messages.
• Understanding of the iGaming domain (casino games, sportsbook, slots, regulatory compliance, etc).
• Hands-on experience with documentation tools such as Jira, Git, and Markdown.
• Experience documenting RESTful APIs and working with tools such as Swagger, OpenAPI, or Postman.
• Familiarity with formats like JSON, YAML, XML, and a basic understanding of HTML/CSS.

What we offer:
 

• Working hours: 09:00/10:00 to 17:00/18:00 (Kyiv time) (Mon-Fri);
• Remote work format;
• Timely payment of wages and official employment;
• A friendly team and a pleasant atmosphere without pressure, stress, and other negative things.

We believe in the importance of unlocking the inner potential of each team member, and we have an open and democratic system of work organization.

We are waiting for you on our team!

About Five Jars

Five Jars is a US-based digital product and engineering company with a distributed team across the United States and Europe.

For nearly 10 years, we have designed, built, integrated, and supported complex digital platforms for nonprofit organizations, membership-based organizations, cultural institutions, healthcare organizations, and other mid-market clients.

Our work includes digital products and platforms, custom integrations, portals and self-service experiences, web and mobile applications, managed services, and our own SaaS products, Screen Pulse and Deyra.

We are now evolving our commercial direction, with a stronger focus on digital products, integrations, platforms, automation, managed services, and recurring product revenue.

We are looking for a hands-on commercial leader who can take ownership of this transition from the business development and sales side.

The Role

This is not a traditional sales management position.

Initially, you will be the primary individual contributor responsible for business development, sales, and presales. You will personally generate and qualify opportunities, run discovery calls, prepare proposals, negotiate, follow up, and close deals.

At the same time, you will help rebuild and improve Five Jars’ commercial function, identify what works, refine our positioning and target markets, establish repeatable acquisition channels, and eventually build a small sales and business development team.

The core mission of the role is simple: build a practical and repeatable commercial function that consistently creates qualified opportunities and converts them into revenue.

What you will do

• Own both pipeline creation and sales conversion, from initial outreach or inbound inquiry through contract signature.
• Build and execute a focused lead-generation strategy across outbound, inbound, referrals, partnerships, previous opportunities, existing clients, events, and other relevant channels.
• Define and refine ICPs, buyer personas, target accounts, priority markets, and qualification criteria.
• Run business-focused discovery calls, identify client needs, stakeholders, budgets, timelines, and decision processes, and translate them into clear commercial solutions.
• Prepare proposals, estimates, presentations, follow-ups, and commercial materials, and independently close straightforward opportunities.
• Lead larger and more complex opportunities, involving founders or technical specialists when their input is needed.
• Review Five Jars’ existing sales process, CRM pipeline, proposals, lost opportunities, and lead sources, and identify where opportunities are being lost.
• Improve qualification, discovery, sales stages, CRM discipline, forecasting, follow-up, sales materials, and commercial KPIs.
• Work with company leadership to refine Five Jars’ go-to-market direction, service packaging, positioning, pricing, target industries, and commercial messaging.
• Develop existing client accounts through consultative conversations around integrations, modernization, digital products, automation, AI-enabled functionality, managed services, and other relevant opportunities.
• Support the commercial development of Five Jars’ SaaS products, Screen Pulse and Deyra, including discovery, demos, proposals, closing, and market feedback.
• Develop referral, technology, agency, and industry partnerships.
• Work closely with marketing, delivery, engineering, and company leadership.
• Over time, identify which commercial capabilities should be added, participate in hiring, and build and manage the future commercial team.

What we are looking for

• Strong experience owning the complete B2B sales cycle in custom software development, digital products, systems integration, digital agencies, or related professional services.
• Proven experience personally generating, qualifying, progressing, and closing opportunities.
• Strong track record selling services to clients in the United States.
• Experience closing mid-market technology or professional services deals, not only low-cost SaaS subscriptions.
• Strong discovery, negotiation, objection-handling, and closing skills.
• Experience preparing proposals, statements of work, estimates, presentations, and RFP responses.
• Ability to understand software delivery well enough to communicate credibly with both business and technical stakeholders.
• Experience building or improving sales and business development processes in an environment where the function was not yet fully established.
• Strong CRM discipline and ability to work with pipeline data and forecasting.
• Ability to operate independently without extensive day-to-day involvement from founders.
• A hands-on mindset. You should be comfortable doing the work yourself before building a team around it.
• Strong written and spoken English, C1-C2 level for non-native speakers.
• Based in Europe or the US, with meaningful overlap with US Eastern Time business hours.

Strong plus

• Experience selling both professional services and software products, building business development functions, working with HubSpot, developing partnerships, or selling digital products, integrations, portals, platforms, SaaS, or managed services.
• Experience or existing relationships in nonprofit, membership, healthcare, fitness, cultural, education, or association markets would also be valuable.

This role may be a strong fit if you are someone who

• Is commercially ambitious but realistic, comfortable with ambiguity, proactive, self-directed, and able to make decisions without waiting for detailed instructions.
• You care more about qualified pipeline and revenue than outreach volume or vanity metrics. You are comfortable challenging assumptions, testing new approaches, and building structure without creating unnecessary bureaucracy.
• You should also genuinely enjoy being hands-on. This is not a role where proposals, follow-ups, outreach, or discovery are delegated to an existing sales team from day one.

What you will have

• You will have access to Five Jars’ existing clients, case studies, proposals, HubSpot data, historical opportunities, and previous commercial efforts.
• You will work directly with company leadership and receive technical support from delivery and engineering specialists for complex opportunities. You will also have support from the existing marketing resource for website, content, campaigns, and sales materials.
• You will have significant ownership of the commercial function and the opportunity to influence sales processes, service packaging, positioning, commercial tools, and future go-to-market direction.
• Once a repeatable commercial model is established, you will have the opportunity to build the future sales and business development team.

What we offer

• Full-time remote work.
• Fixed compensation plus performance-based commission with no artificial earning ceiling.
• Significant ownership and autonomy in building the commercial function.
• Direct access to company leadership.
• Opportunity to influence Five Jars’ future commercial direction.
• Paid vacation, sick leave, and public holidays.
• Professional development and support for relevant industry events.
• Flexible working hours with required overlap with US business hours.

Phoenix Games is a technology company building next-generation iGaming and Web3 products for a global audience. We develop scalable gaming platforms powered by modern web technologies, blockchain, AI, and high-performance backend systems.

As our products continue to grow, we're looking for a Middle Frontend Developer with strong frontend layout skills who can turn Figma designs into accurate, responsive, production-ready interfaces and is comfortable working extensively on the frontend of casino products.

What You'll Do

• Develop and maintain modern web applications using React and TypeScript.
• Build responsive and pixel-perfect interfaces for our iGaming and casino products.
• Do a significant amount of hands-on frontend layout work — translating designs into clean, accurate HTML/CSS/SCSS.
• Implement complex responsive/adaptive layouts for desktop, tablet, and mobile.
• Convert Figma designs into production-ready interfaces with high attention to visual details.
• Build reusable and maintainable React components.
• Integrate frontend applications with REST APIs and backend services.
• Ensure consistent UI behavior across different browsers and screen sizes.
• Identify and fix visual, functional, and cross-browser issues.
• Collaborate closely with Designers, Backend Developers, QA Engineers, and Product Managers.
• Participate in code reviews and contribute to frontend best practices.

Tech Stack

• React
• TypeScript
• Vite
• SCSS
• HTML5 / CSS3
• REST API
• Git
• Figma
• Browser DevTools
• CI/CD

Requirements

• Middle-level Frontend Developer.
• 1+ year of commercial experience with React.
• Strong knowledge of React and TypeScript.
• Hands-on experience with Vite and SCSS.
• Strong HTML/CSS/SCSS skills are a must.
• Strong frontend layout skills and solid understanding of responsive/adaptive design.
• Experience building complex responsive interfaces from scratch.
• Willingness and ability to spend a significant part of the work on layout and UI implementation.
• Ability to accurately reproduce Figma designs in code, including spacing, typography, positioning, states, and responsive behavior.
• Strong understanding of Flexbox, Grid, positioning, media queries, and modern CSS techniques.
• Good eye for visual details and pixel-perfect implementation.
• Understanding of REST APIs and frontend/backend integration.
• Experience with Git and standard development workflows.
• Ability to write clean, readable, and maintainable code.
• Strong analytical and problem-solving skills.
• Ability to work independently and take ownership of tasks.
• Ukrainian or English communication skills.

Nice to Have

• Experience in iGaming, casino, betting, or other high-traffic consumer products.
• Experience building mobile-first and highly responsive interfaces.
• Experience with animations and interactive UI.
• Experience creating reusable UI component systems.
• Familiarity with frontend testing tools.
• Understanding of web performance optimization.
• Experience with Web3 or blockchain products.
• Familiarity with CI/CD pipelines.

What We Offer

• Fully remote work from anywhere in Europe.
• Long-term B2B cooperation.
• Competitive salary paid in EUR or USD.
• Annual salary reviews.
• Performance-based bonus program.
• Annual company bonus.
• 25 paid vacation days.
• Paid sick leave.
• Flexible working hours.
• Home office budget.
• Laptop or equipment allowance.
• Learning & development budget for courses, certifications, books, and conferences.
• English language lessons.
• Private health insurance.
• Mental health support program.
• Sports and wellness compensation.
• Team-building activities and international company retreats.
• Opportunity to work with AI, Web3, blockchain, and modern cloud technologies.
• Career growth in an international product company with ambitious expansion plans.

Phoenix Games is a technology company building next-generation iGaming and Web3 products for a global audience. We develop scalable gaming platforms powered by modern web technologies, blockchain, AI, and high-performance backend systems.

As our products continue to grow, we're looking for a Middle Frontend Developer with strong frontend layout skills who can turn Figma designs into accurate, responsive, production-ready interfaces and is comfortable working extensively on the frontend of casino products.

What You'll Do

• Develop and maintain modern web applications using React and TypeScript.
• Build responsive and pixel-perfect interfaces for our iGaming and casino products.
• Do a significant amount of hands-on frontend layout work — translating designs into clean, accurate HTML/CSS/SCSS.
• Implement complex responsive/adaptive layouts for desktop, tablet, and mobile.
• Convert Figma designs into production-ready interfaces with high attention to visual details.
• Build reusable and maintainable React components.
• Integrate frontend applications with REST APIs and backend services.
• Ensure consistent UI behavior across different browsers and screen sizes.
• Identify and fix visual, functional, and cross-browser issues.
• Collaborate closely with Designers, Backend Developers, QA Engineers, and Product Managers.
• Participate in code reviews and contribute to frontend best practices.

Tech Stack

• React
• TypeScript
• Vite
• SCSS
• HTML5 / CSS3
• REST API
• Git
• Figma
• Browser DevTools
• CI/CD

Requirements

• Middle-level Frontend Developer.
• 1+ year of commercial experience with React.
• Strong knowledge of React and TypeScript.
• Hands-on experience with Vite and SCSS.
• Strong HTML/CSS/SCSS skills are a must.
• Strong frontend layout skills and solid understanding of responsive/adaptive design.
• Experience building complex responsive interfaces from scratch.
• Willingness and ability to spend a significant part of the work on layout and UI implementation.
• Ability to accurately reproduce Figma designs in code, including spacing, typography, positioning, states, and responsive behavior.
• Strong understanding of Flexbox, Grid, positioning, media queries, and modern CSS techniques.
• Good eye for visual details and pixel-perfect implementation.
• Understanding of REST APIs and frontend/backend integration.
• Experience with Git and standard development workflows.
• Ability to write clean, readable, and maintainable code.
• Strong analytical and problem-solving skills.
• Ability to work independently and take ownership of tasks.
• Ukrainian or English communication skills.

Nice to Have

• Experience in iGaming, casino, betting, or other high-traffic consumer products.
• Experience building mobile-first and highly responsive interfaces.
• Experience with animations and interactive UI.
• Experience creating reusable UI component systems.
• Familiarity with frontend testing tools.
• Understanding of web performance optimization.
• Experience with Web3 or blockchain products.
• Familiarity with CI/CD pipelines.

What We Offer

• Fully remote work from anywhere in Europe.
• Long-term B2B cooperation.
• Competitive salary paid in EUR or USD.
• Annual salary reviews.
• Performance-based bonus program.
• Annual company bonus.
• 25 paid vacation days.
• Paid sick leave.
• Flexible working hours.
• Home office budget.
• Laptop or equipment allowance.
• Learning & development budget for courses, certifications, books, and conferences.
• English language lessons.
• Private health insurance.
• Mental health support program.
• Sports and wellness compensation.
• Team-building activities and international company retreats.
• Opportunity to work with AI, Web3, blockchain, and modern cloud technologies.
• Career growth in an international product company with ambitious expansion plans.