Jobs at Djinni

We are looking for a Lead Platform Engineer to lead the team behind a web platform used by pharma marketing teams to run and measure their campaigns.

This is a hands-on technical leadership role: you will lead a small team of developers and a QA engineer while continuing to write code yourself. You will work closely with the CTO and Product Lead, taking features from technical design and documentation through development, release, and production.

What you’ll do

• Lead a team of 2–4 developers + QA: break down tasks, review code, mentor engineers, and contribute to hiring
• Stay hands-on and write production code yourself
• Design how features should be built: data model, API, UI, testing, and rollout
• Write and maintain FRDs, architecture decisions, API contracts, and data models
• Work directly with the Product Lead on priorities
• Work with large-scale campaign data across PostgreSQL, BigQuery, ClickHouse and Apache Druid
• Own releases, production reliability, monitoring, incident response, and debugging
• Improve automated testing, observability, and development processes
• Work with healthcare-professional data, including access, consent and PII requirements
• Report directly to the CTO and participate in architecture and technical decisions

Requirements

• 2+ years as a Tech Lead, Team Lead or hands-on Engineering Manager
• 5+ years of experience building and shipping web products as a full-stack engineer
• Strong hands-on experience with PHP / Laravel
  • Laravel 12, PHP 8.3
  • Eloquent, queues, events, service providers, testing
• Experience with Vue.js and working with an existing Vue codebase
  • Vue 2/3, Vuex, Vue Router
• Strong PostgreSQL knowledge: indexing, query plans, migrations on live tables
• Strong SQL skills and experience with an analytical database such as ClickHouse, BigQuery, Snowflake or similar
• Experience working with large datasets
• GCP experience: Cloud Run, Cloud SQL, GCS
• Docker and CI/CD experience, preferably GitHub Actions
• Experience with automated testing and production debugging
• Experience writing technical documentation and feature requirements
• English B2+
• Comfortable working remotely with overlap with EU time zones

AI-assisted development

AI-assisted development is an important part of the workflow. We expect you to:

• Use AI coding agents such as Claude Code, Cursor, Codex or similar on a daily basis
• Be comfortable reviewing and validating AI-generated code
• Work with multiple coding agents in parallel using isolated branches/worktrees
• Maintain project context and rules for coding agents, e.g. CLAUDE.md / AGENTS.md
• Use AI agents to automate recurring engineering tasks such as test generation, migrations, reports or release checks
• Take full responsibility for the code that reaches production

Nice to have

• Ad-tech or marketing analytics experience
• Healthcare or pharma domain experience
• Pulumi or Terraform
• Experience migrating Vue 2 to Vue 3
• TypeScript
• Apache Druid
• BigQuery / ClickHouse performance and cost optimization

What we offer

• Fully remote work with flexible hours and EU timezone overlap
• Direct collaboration with the CTO on architecture and technical standards
• Paid AI tooling, including Claude Code
• Work with large-scale datasets, including tables with up to 1.5 billion rows
• Small, technically focused team with minimal bureaucracy
• Opportunity to influence architecture and engineering practices rather than simply implement predefined tickets
   

About the product

The product is a marketing data platform for the pharma industry. It helps pharmaceutical brands run campaigns across Meta, LinkedIn and programmatic channels and measure their performance.

The core product is a Laravel + Vue application running on GCP, with PostgreSQL, ClickHouse, BigQuery and Apache Druid behind it. 

Experience: 6+ years
Project Duration: November 1, 2026 – November 30, 2027
Location: Remote from Poland

About the Project

We are looking for an AI Agent Developer to design, build, test, and deploy production AI agents using Microsoft technologies. The role combines hands-on agent development with architecture, security, governance, integration, and stakeholder collaboration.

Responsibilities

• Build, test, and deploy production AI agents using Copilot Studio.
• Develop agents within the Azure AI Foundry ecosystem.
• Design agent architectures and apply appropriate design patterns.
• Develop reliable prompts and select suitable tools and connectors.
• Integrate AI agents with the systems required for specific use cases.
• Perform functional, security, and compliance testing of AI agents.
• Work across development, test, and production environments and follow appropriate release practices.
• Assess business use cases and determine whether an AI agent is a suitable solution.
• Analyze agent failures and identify the reasons for incorrect behavior.
• Identify reusable approaches and contribute to a library of design patterns.
• Work closely with business owners and support handover and knowledge transfer.
• Maintain clear documentation and ensure operational readiness.
• Consider long-term maintainability, platform evolution, and future replacement of solutions.
• Build solutions within established security, governance, and compliance frameworks.

Requirements

• 6+ years of professional experience.
• Hands-on experience with Copilot Studio.
• Experience with Azure AI Foundry.
• Strong understanding of AI agent architecture and design patterns.
• Strong prompt engineering skills.
• Understanding of connectors, permissions, and knowledge-source governance.
• Experience testing AI agents, including security and compliance testing.
• Understanding of DLP, prompt injection risks, and access control.
• Experience working across development, testing, and production environments.
• Experience integrating AI agents with external systems.
• Strong analytical skills, including use-case evaluation and failure analysis.
• Ability to identify and develop reusable solutions.
• Experience working within governance and security frameworks.
• Strong stakeholder management and business-facing communication skills.
• Good documentation and knowledge-transfer skills.
• Understanding of operational readiness and support models.
• Awareness of long-term maintainability and platform evolution.

Tech Stack

• Copilot Studio
• Microsoft Azure
• Azure AI Foundry
• AI Agent Architecture
• Design Patterns
• Prompt Engineering
• Integrations
• Security & Compliance

Overview

We are looking for a Senior Engineer to take primary ownership of its Go-based Virtual Signer and help maintain shared signing SDKs and integrations across server and mobile platforms.
 

The Virtual Signer participates in MPC and threshold signing alongside mobile devices. This is an opportunity to take ownership of a security-critical component, strengthen its production reliability, and contribute to future transaction approval and post-quantum signature capabilities.

About the Environment:
The Go-based Virtual Signer orchestrates signing between server and mobile participants. It integrates with MPC and threshold-signature libraries, supports encrypted storage and must recover safely from interrupted signing sessions and other failures.

The component has been rebuilt over roughly the past year and is around MVP stage. It is working, with outstanding pull requests, logging and visibility improvements, and race conditions to address. The incoming engineer may have limited handover from the previous maintainer.

The engineer will work with backend and mobile engineers, testing support and a cryptographer who also maintains the repository. Collaboration across UK and Eastern Canada working hours will be important.

The environment includes Go, Linux and Docker, with shared SDKs and bindings for Swift, Kotlin and JavaScript/TypeScript. Jira, Slack, GitHub and Google Workspace are used for collaboration.

The initial focus is a robust production baseline: understand the codebase, resolve reliability and security issues, improve tests and support releases. Later work may include transaction approval functionality and post-quantum signing in collaboration with cryptography specialists.

Responsibilities:
Virtual Signer Engineering
— Maintain and improve the Go Virtual Signer, including signing orchestration, communication between participants, encrypted storage and recovery from failures.
— Investigate concurrency, timeouts, interrupted sessions, network failures and service restarts; review outstanding pull requests and address race conditions.
— Improve logging and visibility, assess the existing implementation critically and make careful, maintainable changes.
— Support agreed transaction approval features and future post-quantum signature work.
 

Cryptography, SDKs & Cross-Platform Integration
— Maintain integrations with MPC and threshold-signature libraries, working with cryptography specialists where changes affect protocol security.
— Contribute to shared SDKs and bindings connecting Go with Swift, Kotlin and JavaScript/TypeScript.
— Work with backend and mobile engineers to preserve API compatibility and consistent signing behaviour across releases.
 

Quality, Testing & Operations
— Improve automated tests for signing correctness, failure recovery and interoperability between virtual and mobile signers.
— Support Linux and Docker deployments, dependency upgrades, monitoring, release processes and operational documentation.
— Investigate production issues and occasionally assist with customer setup or logging problems.

Ownership & Technical Judgement
— Take primary ownership of a security-critical codebase with limited handover and independently establish a robust production baseline.
— Assess technical risks and trade-offs, explain decisions clearly and make incremental changes with sound security judgement.
— Collaborate pragmatically with backend, mobile, testing and cryptography specialists across time zone

Requirements:
Essential Technical Experience
— Strong hands-on production Go, including goroutines, channels, context cancellation, race detection, profiling and resource management.
— Experience owning production services, diagnosing complex failures and delivering well-tested fixes.
— Distributed-systems knowledge, including asynchronous messaging, retries, idempotency, state management and partial failures.
— Practical security engineering: authentication, encrypted storage, sensitive-data handling and safe logging.
— Applied cryptography concepts, including digital signatures, hashing, key management and signature verification.
— Automated testing, CI/CD, Linux, containers and production observability.
— Ability to understand an established codebase, make careful incremental changes and explain technical decisions clearly.

Strongly Preferred/Desirable Technical Experience
— JavaScript/TypeScript SDKs and mobile bindings, including asynchronous APIs, packaging, compatibility and Go/mobile interoperation.
— React Native/Expo, Swift or Kotlin; experience with mobile lifecycle, secure storage or native modules.
— MPC or threshold signatures, distributed key generation and changes to signing participants.
— Blockchain transaction signing, including signing payloads and chain-specific requirements.
— Confidential computing and hardware attestation, particularly AMD SEV-SNP, are especially valuable among the desirable skills.
— MQTT, Protocol Buffers, Prometheus or OpenTelemetry; familiarity with post-quantum signature schemes is also desirable for the longer-term roadmap.
 

Market Experience
— Experience with digital asset infrastructure, blockchain signing or MPC is valuable, but the priority is strong production Go and sound security judgement.
— Relevant experience in other security-critical distributed systems can also demonstrate fit.
— Candidates do not need experience with every desirable technology; evidence of ownership, careful delivery and learning across platform boundaries matters.

Soft Skills 
— Independent and able to understand an existing repository with limited handover.
— Strong security judgement, attention to correctness and a careful approach to critical signing systems.
— Able to assess implementation choices critically and explain risks and trade-offs clearly.
— Pragmatic and collaborative when working with backend, mobile and cryptography specialists.
— Comfortable diagnosing production failures and improving reliability through tested changes.
— Effective remote communication and flexibility for collaboration across UK and Eastern Canada working hours.
— Able to take ownership without relying on detailed instructions or extensive handover.
— Willing to investigate occasional customer setup or logging issues.

Assessment Process
Stage 1: CV screening.
Stage 2: First-stage technical interview (30 mins).
Stage 3: Technical Interview (1 hour) including pair-programming.
Stage 4: Cultural alignment review (30 mins).

Domain: Banking & Finance
Experience: 5+ years
Employment Type: Full-time
Location: Hybrid — Kraków, Poland
Project Duration: November 2, 2026 – April 30, 2027

About the Project

We are looking for Data Engineer to join a modern engineering environment and work on reliable, scalable data solutions.

The role focuses on building data pipelines and processing frameworks, integrating multiple platforms and systems, and making data accessible, governed, and fit for purpose. The team works with Scala, Java, Python, Apache Airflow, and cloud technologies.

Experience with data fabrics, cloud platforms, and Apache Airflow will be particularly valuable.

Responsibilities

• Design, develop, and maintain robust data pipelines and engineering frameworks
• Build scalable data processing solutions using Scala, Java, and Python
• Integrate data platforms, applications, APIs, and other technology components
• Develop and support workflows using Apache Airflow
• Work with cloud-based data services and infrastructure
• Contribute to data fabric architectures, including data integration, discovery, access, and governance
• Develop and consume APIs to support data movement and system interoperability
• Apply software engineering best practices, including version control, testing, code reviews, documentation, and CI/CD
• Monitor, troubleshoot, and improve the performance, resilience, and quality of data solutions
• Collaborate with data architects, software engineers, platform teams, analysts, and business stakeholders
• Support security, data protection, and operational controls throughout the engineering lifecycle

Requirements

• Professional experience in data engineering, software engineering, or a closely related field
• Strong programming skills in Scala, Java, and Python
• Strong knowledge of SQL / DML
• Experience designing and implementing data pipelines, processing frameworks, or integration services
• Experience integrating multiple tools, platforms, and systems
• Hands-on experience with Apache Airflow, including DAG development, scheduling, monitoring, and troubleshooting
• Understanding of REST APIs, authentication, and error handling
• Experience working with cloud platforms and cloud-native engineering practices
• Familiarity with data architecture, data integration patterns, and data quality
• Experience with Git, automated testing, and CI/CD
• Ability to investigate complex technical issues and communicate solutions clearly
• Degree, equivalent qualification, or demonstrable professional experience in computer science, engineering, data, mathematics, or a related field

Nice to Have

• Experience with Google Cloud Platform (GCP), including BigQuery, Cloud Storage, Pub/Sub, Dataflow, or Dataproc
• Experience with data fabric architectures, metadata, data catalogues, lineage, or federated data access
• Familiarity with Apache Spark and other distributed processing technologies
• Experience with containers, orchestration, or Infrastructure as Code
• Knowledge of security, access control, encryption, and regulatory requirements in data environments
• Experience working in Agile, product-oriented, or DevOps environments
• Relevant cloud, data engineering, or software engineering certifications

Soft Skills

• Strong ownership and accountability for deliverables
• Ability to collaborate effectively across engineering, architecture, operations, and business teams
• Ability to balance delivery speed with maintainability, resilience, and control
• Structured approach to problem-solving and continuous improvement
• Ability to communicate technical concepts clearly to both technical and non-technical stakeholders
• Collaborative mindset and appreciation of diverse perspectives

Tech Stack

Scala, Python, Java, SQL, Apache Airflow, Apache Spark, REST APIs, Git, CI/CD, GCP, Data Integration, Data Fabric

Sprinterra is an Acumatica ISV and Development Service Provider, working with Acumatica since 2013 and winner of the 2026 Acumatica Development Excellence Award.

We are looking for a manual QA engineer who wants to own the system, not just execute test cases. You will test Acumatica products, customizations, and integrations, become the internal expert on the functionality, and for the right person, grow into business analysis.

What you will do

• Test Acumatica customizations, ISV products, and integrations across releases and upgrades.
• Regression-test standard Acumatica functionality during upgrades, not only customizations.
• Design and maintain test cases and regression suites around business scenarios.
• Report and track defects in Jira, verify fixes, close the loop with developers.
• Review requirements before development and raise gaps and contradictions early.
• Build deep product knowledge: configuration, business logic, real customer usage.

What we expect

• 2+ years of manual QA on web-based business applications.
• Strong QA fundamentals: test design, documentation, defect lifecycle, regression.
• Working SQL for data verification.
• Willingness to learn a large ERP end to end and become the expert on it.
• English at B2 or above for direct work with US-based colleagues and partners.
• Active use of AI in daily QA work: generating test cases, summarizing specs and release notes, drafting defect reports, analyzing logs, preparing test data, and reviewing the output critically.

Significant plus

• ERP experience of any kind (Acumatica, SAP, NetSuite, Dynamics, Sage). The strongest differentiator.
• Background in accounting, finance, logistics, or operations.
• Previous application support experience on a business system: helpdesk, L2, or customer support.

Where it leads

Within 12 to 18 months the role expands into requirements gathering, functional specifications, discovery calls, and functional design, with certification and mentoring behind it.

How to apply and what to prepare

Before the interview, research Sprinterra. We will ask you to explain in detail what our Acumatica practice does: what services we provide, what we build, what we deliver, and to whom. A general answer will not pass.

We are looking for an experienced Retention Team Lead to lead our CRM/Retention team and drive the development and execution of retention strategies across the player base.
In this role, you will manage and mentor CRM Managers, coordinate the promotional roadmap, oversee segmentation and campaign quality, and ensure that retention activities are aligned with business goals, customer lifecycle strategy, and bonus economics.
You will be a key point of coordination between the CRM team and other departments, taking ownership of team priorities, major promotional events, and overall CRM execution quality.

HOW YOU WILL MAKE AN IMPACT

• Manage the day-to-day work and priorities of CRM Managers.
• Review segmentation logic and identify outdated conditions, logical inconsistencies, duplicate filters, and overlapping audiences.
• Ensure CRM Managers critically evaluate segmentation logic before launching campaigns.
• Review the quality of the team's A/B tests, including hypotheses, sample sizes, test setup, and final conclusions.
• Build and maintain the overall CRM promotional plan and calendar.
• Balance workload between CRM Managers and ensure priorities are aligned with business objectives.
• Coordinate CRM activities from initial concept through execution.
• Plan and coordinate thematic, seasonal, and large-scale promotional events.
• Develop concepts, mechanics, timelines, and communication touchpoints for promotional events.
• Distribute event-related tasks across CRM Managers and coordinate execution.
• Balance regular CRM activities with large-scale promotional campaigns and events.
• Monitor bonus economics and ensure promotional mechanics are aligned with the retention strategy and budget.
• Analyze the performance of promotional events and assess their impact on engagement, retention, GGR, deposits, and betting activity.
• Identify and prevent overlapping communications between events, regular promotions, and other CRM or risk-related flows.
• Monitor key retention metrics and use cohort analysis to evaluate the effectiveness of CRM initiatives.
• Prepare consolidated CRM performance reports for the Head of Retention/CRM.
• Coordinate tasks with Product, Marketing, BI, Design, Operations, and other relevant departments.
• Translate business requests into clear priorities and actionable tasks for the CRM team.
• Support the development and optimization of activation, retention, reactivation, and anti-churn flows.
• Identify opportunities to improve CRM processes, segmentation, customer lifecycle coverage, and team efficiency.
   

WHAT WILL HELP YOU SUCCEED IN THE ROLE

• 2+ years of experience in CRM/Retention within the gambling industry.
• 1+ year of experience in a leadership role — Team Lead, Senior CRM Manager, Head, or similar.
• Strong understanding of retention and CRM principles:
  • customer segmentation;
  • customer lifecycle;
  • LTV and churn;
  • retention rate;
  • A/B testing;
  • bonus economics.
• Strong hands-on experience with Smartico and Customer.io.
• Experience building activation, reactivation, and anti-churn flows.
• Strong analytical skills, including cohort analysis and retention analysis.
• Basic SQL/BI knowledge.
• Experience managing team workload, priorities, and deadlines.
• Experience mentoring and developing CRM specialists.
• Experience planning and coordinating promotional or thematic campaigns.
• Strong attention to detail and ability to identify issues in segmentation and campaign logic.
• English — Upper-Intermediate or higher.
• Knowledge of HTML/CSS.

Would Be a Plus

• Experience managing promotional events in the gambling industry.
• Experience with gamification and custom promotional mechanics.
• Understanding of bonus abuse prevention.
• Experience with GlockApps, Folderly, or Google Postmaster Tools.
• Experience working with affiliate traffic and dedicated CRM flows.

WHY YOU’LL LOVE IT HERE

• Flexible working hours and a remote work setup, so you can plan work around your life and not your life around work!
• Unlimited vacation days and paid sick leave—because your rest matters.
• A competitive compensation that truly reflects your skills and expertise.
• Employee referral bonus and gifts to celebrate your special occasions.
• 50% financial support for learning expenses to supercharge your professional growth!
• A positive atmosphere where you always feel respected and truly belong.
• Inspirational team-building activities that turn colleagues into best friends.
• Wellness benefits: We’ll support your sports passions, from yoga classes to gym memberships.
• Co-working space reimbursement to save you

Ajax Systems is an international technology company and Europe’s largest manufacturer of security systems. Ajax products are trusted by more than 4.5 million end users and 330,000 PRO users across over 180 countries.

The company provides comprehensive solutions for protecting residential and commercial properties of all sizes. Today, the Ajax product portfolio comprises 280 devices covering intrusion protection, video surveillance, fire safety, as well as comfort and automation.

Every year, we continue to achieve multiple-fold growth, both in the size of our team and in the number of users worldwide.
 

About the role

Clear and comprehensive documentation is not just an add-on to a product. It’s the key to how quickly partners and users can deploy the Ajax system — and how confidently they can take advantage of all its features. This is exactly the kind of documentation you’ll be creating with us.
 

What awaits you:

• Working with devices ranging from motion detectors to advanced fire safety systems.
• Writing both dry technical specifications and in-depth articles about AI principles in cameras.
• Daily collaboration with R&D, PROD, marketing, product managers, and web developers.
• Preparing documents together with the certification team to meet international standards and bring products to new markets.
• Becoming a “translator” of complex technical language into clear, user-friendly content.
   

Responsibilities:

• Write technical specifications and align them with R&D.
• Create web instructions that make complex features easy to understand for users.
• Prepare supplementary materials and recommendations for convenient product use.
• Support marketing projects from the technical side and grow your own expertise.
   

This role is for you if:

• You take pleasure in precision: details are not a burden but a tool.
• You believe complex things can be explained simply and elegantly.
• You feel comfortable in a dynamic environment where change is the norm.
• You have experience working with technical texts.
• You are proficient in Ukrainian and English (B2–C1).
   

What we offer:

• In return for your dedication and contributions, we offer:
• Working in dynamically growing multinational and multicultural Group.
• Ability to add value to the business by applying your knowledge and skills.
• Ajax security system kit (you will be a part of the beta-testing program and will be able to test new devices and features before official release).
• Full-time working schedule.
• Medical insurance.
   

Ajax Systems is a Ukrainian success story — a place of incredible strength and energy.

Ajax Systems is an international technology company and the largest security systems manufacturer in Europe. Ajax products are trusted by more than 4.5 million end users and 330,000 PRO users across over 180 countries. The company offers comprehensive solutions for protecting residential and commercial properties of various sizes. Today, the Ajax portfolio includes 280 devices for intrusion protection, video surveillance, fire safety, and comfort and automation. Every year, we demonstrate exponential growth both in the size of our team and in the number of users worldwide.

Ajax Systems operates a full-cycle production model, from idea generation and prototyping to mass production and global sales. Each department fully covers a specific operational need of the business. The company’s specialists are involved at every stage — from the production line in Ukraine to the logistics center in Poland, from where products are shipped to distributors worldwide.

Now we are looking for a hands-on Cyber Security Specialist to strengthen our security posture and operational resilience. You will be at the forefront of our cybersecurity defense, responsible for incident monitoring and investigation, the deployment and improvement of security solutions, and ensuring our corporate processes and infrastructure meets compliance standards. If you are passionate about building secure systems, incidents investigation and translating technical findings into efficient mitigation actions, this role is for you.

Key Responsibilities:

• Security systems support and improvements: Participate in security architecture improvement, provide support for the full lifecycle of security systems — from design and deployment to enhancement and technical support.
• Security Monitoring & Incident Response: Improve security monitoring processes and practices, participate in security events monitoring and triaging detected events. Develop and refine SIEM detection rules, investigate anomalies and identify root-cause of incidents, develop and execute mitigation plans to neutralize threats.
• Conduction Security Assessments: Conduct technical security assessments of corporate IT systems to identify compliance deviations and vulnerabilities. Participate in risks assessments, mitigation measures design and implementation.
• Compliance & Governance: Participate in improvement of security procedures, policies, and operational instructions. Collaborate with stakeholders on security processes implementation and improvement to ensure readiness for external security audits (e.g., ISO 27001, SOC2).
• Consultancy & Support: Partner with internal teams to define security requirements for new systems and solutions, provide expert guidance on implementing security controls. Participate in security requests processing, security awareness trainings preparation and conduction.
• Reporting & Strategy: Participate in preparation of reports for management, definition and description of security strategy.

Required Technical Skills & Qualifications:

• Experience: 5+ years in CyberSecurity with a strong focus on SOC operations and security systems implementation.
• Core Proficiency: Hands-on experience with SIEM systems (Splunk/QRadar/Logsign/Wazuh), MDM solutions (Jamf/Crowdstrike/JumpCloud/Zoho), EDR/XDR solutions (SentinelOne/ESET/Defender), Cloud security monitoring (M365, GWS, AWS), and Firewall/WAF technologies (Cisco/PaloAlto/Fortinet/Ubiquiti).
• Domain Knowledge: Strong understanding of On-Premise and Cloud architectures, network security protocols, endpoint and application security. Practical experience in industry security best practices implementation (CIS, OWASP, NIST).
• Security assessment: Practical experience performing IT systems and application security assessments and reports preparation.
• Security governance: Experience in preparation of security reports, procedures and instructions for reporting. Practical knowledge of ISO 27001 technological controls implementation.
• Language Proficiency: Intermediate (B1-B2) English level required for working with technical documentation, cross-regional communication with colleagues and partners.

Preferred Skills & Certifications:

• Certifications: Vendor-specific security certifications (e.g., Google, MIcrosoft, Cisco, Palo Alto PCNSE, Fortinet NSE) are highly valued.
• Frameworks: Practical knowledge of ISO 27001 organizational controls implementation.

Why Join Us:

• Impact: Take ownership of security projects from concept to deployment.
• Culture: Work in a “zero bullshit” environment that values technical excellence and autonomy.
• Growth: Access to corporate English training and professional development/certification support.
• Health care: medical insurance.
• Beta Access: Get hands-on experience with new Ajax security systems before they reach the market.
• Innovation: Help shape the future of “Made in Ukraine” reliability.

Why this role exists:

The Tech Lead is a senior engineering role responsible for driving technical excellence within a specific product or platform stream. This role combines hands-on development with architectural leadership, ensuring high-quality, scalable, and maintainable solutions. The Tech Lead partners closely with Head of stream, Product Managers, and Team Leads to deliver business value while maintaining strong technical standards.

What you’ll drive:

Technical Architecture and System Design

• Own high-level system design and architecture decisions for features, services, and platform components.
• Perform technical evaluation of tasks, initiatives, and projects, including feasibility and trade-offs.
• Collaborate with Team Leads and other Tech Lead on technical roadmap alignment.
• Support incident resolution and root cause analysis for complex production issues.

Hands-on Development and Quality Standards

• Contribute as an Individual Contributor (IC) to critical or complex parts of the system.
• Drive technical excellence within the assigned stream, ensuring alignment with company-wide engineering standards.
• Ensure code quality, reusability, scalability, and extensibility across owned services/components.
• Review and guide implementation approaches to ensure best engineering practices.
• Ensure adherence to Definition of Done (DoD) and engineering standards.

Delivery and Technical Leadership

• Provide high-level effort estimations and support planning activities.
• Act as a technical authority in at least one programming language or technology stack.
• Balance technical quality vs delivery speed.

Mentorship and Engineering Culture

• Mentor engineers and contribute to their professional development and technical growth.
• Assist Team Leads in defining and executing Personal Development Plans (PDPs).
• Promote knowledge sharing, documentation, and engineering culture improvements.

What makes you a GR8 fit:

Must-have

• 7+ years of professional software engineering experience, including prior experience in a senior or lead engineering role.
• Proven experience in Scala and Java.
• Experience designing and building scalable distributed systems in product-based or B2B environments.
• Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field (or equivalent practical experience).
• Strong system design, architectural thinking, and deep understanding of software engineering best practices.
• Strong problem-solving, analytical skills, and effective technical communication across engineering and non-engineering stakeholders.
• Ownership, accountability, and ability to work in cross-functional environments.
• Upper-Intermediate (B2+) level of English and Ukrainian or Russian.

Nice-to-have

• iGaming domain experience.

We are looking for a Computer Vision Engineer to join one of our international clients on an outstaff basis.

🎯 Core Responsibilities

• Video Algorithmic Pipelines: Design and stitch together custom video processing workflows (Detection ➔ Multi-Object Tracking ➔ Action Recognition) directly in memory (GPU/CUDA level) to minimize latency.
• Camera Calibration & Homography: Develop robust algorithms for automatic pitch/field line detection, lens distortion compensation, and 2D-to-3D coordinate mapping (homography estimation).
• Advanced Multi-Object Tracking (MOT): Optimize tracking algorithms (Kalman filters, deep embedding matching) to handle dense crowds, severe occlusions, and ID switches under fast-paced sports dynamics.
• Custom Model Adaptation: Fine-tune and structurally modify state-of-the-art CV architectures (YOLO-style detectors, Vision Transformers) specifically for sports domains and low-resolution/far-angle edge cases.

🛠 Technical Requirements

• CV Experience: 2+ years of production-proven commercial experience in Computer Vision, with a heavy focus on Video Analytics.
• Domain Expertise: Solid, demonstrable experience with sports video data, player tracking, or highly dynamic multi-agent scenes.
• Hard Skills:
  • Exceptional Python and deep understanding of PyTorch or TensorFlow.
  • Strong foundation in classical computer vision geometry (projective geometry, epipolar geometry, camera matrices, OpenCV).
  • Hands-on experience with modern tracking frameworks (e.g., ByteTrack, OC-SORT) or writing proprietary tracking logic.
  • Experience optimizing models for inference (TensorRT, ONNX, Triton Inference Server).
• Engineering Mindset: Ability to profile vision algorithms, identify execution bottlenecks, and optimize for throughput/latency without losing precision.

SKELAR is a venture builder that creates international IT companies according to venture capital investment guidelines. Together with our co-founders, we assemble solid and efficient teams to launch tech businesses that will succeed globally.

We’re looking for a Product Manager for our partner company, Duomo.

Duomo is an app rooted in Christian values, helping people turn Scripture into daily habits and inner peace. We’re building a leading church-tech product for people seeking spiritual renewal.

To achieve this ambitious goal, we’re looking for a Middle Product Manager who will take real ownership of how Duomo evolves and how users experience the product.

What you’ll be responsible for

As our first PM, you will report directly to the Product Lead and:

• Own product areas end-to-end: problem discovery → solution → delivery → outcome.
• Drive the product development plan, balancing quick wins and long-term bets.
• Improve key product metrics (activation, engagement, LTV) through experiments and iteration.
• Translate user needs and insights into clear product goals and measurable outcomes.
• Work closely with Design, Engineering, and Content to turn ideas into business impact.

What we’re looking for:

• 3+ years of experience working as a Product Manager on a B2C product.
• You can break down a vague vision ("make the app more engaging") into a series of testable, measurable hypotheses.
• Before shipping anything, you understand what user behavior you’re aiming to change and how that change impacts key metrics like LTV, activation, or retention.
• Outcome-driven, not output-driven: You feel a physical itch when you see a feature shipped that doesn't move a metric or has a clear hypothesis.
• You thrive in an fast-paced environment with speed, ambiguity, and responsibility.

What will help you succeed in this role?

• You measure success by what changes for users and the business.
• You ask “what problem are we solving?” before building anything.
• You’re comfortable challenging ideas and proposing better alternatives.
• You can execute without heavy processes, but know when structure is needed.
• You’re hungry to grow and continuously improve as a PM.

Why Duomo

• You’ll work on a product with a clear mission and real values.
• You’ll help us transition from a content-rich app into a truly connected spiritual platform.
• You’ll be early enough to influence how product is done at Duomo long-term.

What we offer:

• Competitive salary;
• Significant impact on a rapidly growing business and contribution to how it shapes up;
• Ample career opportunities for ambitious growth and development;
• A possibility to attend internal, external courses, seminars and the access to a corporate library;
• Comfortable working environment. We provide all necessary work equipment for your role and serve complimentary breakfasts, lunches, and snacks in the office;
• 20 days of paid vacation, medical insurance and a variety of sports activities available for employees inside and outside the office.

Let's build the next big everything together!

About us:
 

BetterMe — an all-in-one well-being ecosystem empowering millions to become better — physically, mentally, and emotionally. We build what makes people better and keep challenging ourselves to inspire others.

We are scaling and our specialists are leveling up. Now we're looking for a talented Performance Marketing Analyst ready to grow with us.
 

Your impact:

• Work closely with the Marketing team: analyze Performance Marketing data (campaigns, budgets, ROI/ROAS) to find patterns and opportunities on your own, and turn them into insights that impact the business — e.g. spot underperforming campaigns and show the effect of a proposed change;
• Automate and streamline marketing operations: build scripts and tools connecting to ad platform APIs to monitor campaign status, performance, and budgets, and create AI-powered workflows using LLM APIs to speed up routine tasks;
• Support dashboards and reports when needed, to keep campaign performance and KPIs visible;
• Contribute to our internal BetterBI system, combining marketing, finance, and product data.
   

About you:

• 2+ years of hands-on experience specifically in Marketing/Performance Marketing Analytics;
• A track record of business-impacting cases where you personally identified an opportunity or problem in campaign data, suggested a change, and achieved measurable results (e.g. increased revenue or ROAS, or saved budget).
• Proficiency in SQL, Excel, Python skills for data manipulation and scripting;
• Solid understanding of paid marketing platforms and their metrics — Meta Ads, Google Ads, TikTok Ads;
• Practical experience with AI tools and prompt engineering to solve business tasks;
• Strong business sense — you understand how marketing metrics work and why they change;
• Strong written and spoken English.
• Hands-on experience with BI tools and data visualization (e.g., Tableau)
   

What you get at BetterMe:

A mission that inspires. Every line of code, every design, every idea helps millions of people become healthier and more confident.
Trust without micromanagement. You manage your time and make decisions independently. We value outcomes, not online hours.
Growth opportunities. 90% of our leads have grown within the company. There’s space for initiative, new responsibilities, and real career upgrades.
Flexible work format. Choose what works best for you — office, remote, or hybrid.
Wellness in practice. Offline: workouts with professional trainers in our corporate gym, massage, corporate lunches, sports, and team activities — everything you need to recharge and reset together. Online: regular online workouts, partner discounts, and free access to our products.
Health insurance & corporate doctor.
Open communication. Transparency across teams, honest feedback, and support for initiatives are part of our everyday culture.
Support for sports events. We cover entry fees and encourage the team to compete and participate together.
Modern equipment. We provide new hardware and everything you need for productive work.
Legal & finance support. Experienced lawyers and financial specialists are always there to help — from documents to personal consultations.
 

About Vestox Digital

Vestox Digital is a London-based Media Buying Agency founded by a Ukrainian team with 8 years of experience in affiliate marketing and media buying. We focus exclusively on White Hat verticals and long-term partnerships with direct advertisers, building sustainable traffic acquisition systems that scale across Tier-1 markets and multi-million-dollar budgets.

We treat great media buyers as business partners, not employees: significant performance-based upside, direct access to decision-making, and the chance to grow with the company from its earliest stage.

We're looking for a results-driven, independent and confident Google Media Buyer (Middle/Senior) who doesn't just run traffic, but builds efficient marketing that makes serious money.

What you'll be doing

• Generating profit with 40%+ ROI on daily budgets of $5k+ across Google Ads (Search/Demand Gen) and Microsoft Ads on White Hat Ecom/Nutra offers (CPA/CPL/RS models);
• Constantly generating new hypotheses, approaches and funnels, and testing them;
• Researching the market and analyzing emerging trends;
• Keeping strict, day-to-day control of budgets and your own KPIs.

What we're looking for

Must have:

• 2+ years of hands-on experience with Google Ads;
• 1+ year in the Affiliate industry (traffic arbitrage) or DTC products;
• 1+ year working with Ecom and/or Nutra verticals (White Hat);
• Recent, verifiable success cases with $30k+ monthly profit on Google Ads;
• Solid grasp of Performance and DTC metrics (EPC/RPC/CVR/EVR/CTC, etc.), with the ability to analyze them in depth and make decisions based on the data;
• Experience with trackers and analytics tools (GA, Clarity, Tableau, Campaignswell + ClickFlare/PeerClick/Voluum, etc.);
• Deep understanding of Google Ads/Microsoft Ads advertising policies and how to apply them when launching affiliate offers;
• Ability to independently select offers, build and test hypotheses, analyze results and scale profitable setups;
• English level B2+.

Nice to have:

• Experience with Microsoft Ads (Bing Ads);
• Ability to create pre-landers (LanderLab/Duda/ClickFunnels) and creatives (Creatify/Pixlr/GoogleFlow/Canva) on your own;
• Google Merchant Center and GTM setup skills.

What we offer

• 💰 A motivation system that's unique for the White Hat space, with the potential to earn 4-figure amounts within your first months;
• 🎯 Proven, private offers with strong payouts, high-converting funnels and a ready-built infrastructure tailored specifically to Ecom/Nutra PPC;
• 🤝 Direct access to the CEO: implement your own ideas without red tape and resolve issues in real time;
• 🌍 Fully remote work, B2B contract;
• 📈 A clearly defined growth path up to Team Lead / Head of Media Buying / CPO for those who want it and can deliver.

How to apply

Send us your CV along with a short description of your best case from the last 3 months (vertical, GEO, daily budget, ROI, etc.). Please start your case description with the words "White Hat" so we know you've read everything carefully.

#MediaBuyer #GoogleAds #PPC #AffiliateMarketing #PerformanceMarketing #Ecommerce #Nutra #Remote #DTC #TrafficArbitrage

# Senior VFX Animator (Unity / Spine)

We are hiring a Senior VFX Animator for our client — a product-focused gaming company building next-generation interactive gameplay experiences inspired by modern casual and skill-based games.

We’re looking for a hands-on VFX expert with strong real-time production experience in Unity and Spine who can independently own the full VFX animation pipeline — from concept creation to final in-engine implementation.

The ideal candidate combines strong artistic sensibility with deep technical expertise, creating effects that are visually impactful, gameplay-readable, and optimized for real-time performance across mobile and desktop platforms.

You will collaborate closely with game designers, UI/UX teams, engineers, and artists across multiple projects in a fast-paced production environment.

## Responsibilities

### End-to-End VFX Ownership

* Own the complete VFX workflow from concept to implementation

* Create:

  * UI interaction animations

  * Gameplay and feature-related VFX

  * Reward and bonus animations

  * Item usage effects

  * Gameplay feedback animations

* Translate gameplay requirements into clear and satisfying visual feedback

* Ensure animations improve gameplay clarity, engagement, and user experience

### Real-Time Production & Technical Execution

* Work extensively with Spine for:

  * Rigging

  * Mesh deformation

  * Animation state setup

  * Export optimization

* Build and optimize VFX workflows in Unity:

  * Particle systems

  * Animator & Timeline integration

  * UI animation integration

  * Prefab organization

* Combine Spine and Unity workflows efficiently

* Optimize assets for mobile and desktop performance

* Maintain strong performance standards while preserving visual quality

### Artistic Quality & Gameplay Readability

* Create animations with strong timing, impact, and rhythm

* Balance visual richness with gameplay clarity

* Maintain consistency with overall art direction

* Improve user interaction through polished feedback systems

* Iterate quickly based on reviews and feedback

### Pipeline & Integration

* Structure assets for clean integration and scalable workflows

* Collaborate closely with engineers on implementation and optimization

* Maintain organized file structures and naming conventions

* Anticipate technical integration issues early in production

* Help improve internal VFX pipelines and standards

### Collaboration & Production Agility

* Communicate effectively with design, engineering, and art teams

* Work across multiple concurrent projects

* Adapt quickly to changing priorities and fast iteration cycles

* Participate actively in reviews, testing, and feedback sessions

## Requirements

* 5+ years of experience in real-time VFX and animation production

* Advanced experience with Unity VFX workflows

* Expert-level Spine animation skills

* Strong understanding of real-time optimization for mobile and desktop

* Experience with:

  * Particle systems

  * Animator / Timeline

  * Prefabs

  * Texture atlases

  * Draw call optimization

  * Shader/material setup

* Strong understanding of gameplay readability and animation timing

* Experience shipping mobile or cross-platform games

* Ability to independently solve technical and artistic challenges

* Strong communication and collaboration skills

* English or Mandarin or Ukrainian proficiency

## Nice to Have

* Experience in casual games, gaming products, poker, or UI-heavy experiences

* LiveOps or fast-paced production environment experience

* Experience mentoring other animators

* Familiarity with distributed/global teams

* Basic understanding of 3D workflows or real-time lighting pipelines

* Experience with version control systems such as Git

## What Success Looks Like

* High-quality real-time VFX that enhance gameplay and user engagement

* Smooth and optimized implementation across platforms

* Clear gameplay feedback and polished interaction design

* Fast iteration cycles without sacrificing quality

* Strong collaboration between art, design, and engineering teams

## What We Offer
* Competitive compensation package

* Remote-friendly work environment

* Optional relocation support

* Home office & hardware budget

* Flexible paid time off policy

* Learning & development budget

* Referral bonus program

* Long-term product-focused environment with modern workflows

Lead VFX Artist

Unity | Gameplay VFX | UI Animation | Spine | Mobile Games

About the Role

This is a key role in our team where you will have the opportunity to unlock your full potential, bring your experience and creativity into our games, propose your own ideas and solutions, and have a real impact on the final result.

We are looking for a hands-on Lead VFX Artist to lead and develop our VFX team while taking ownership of the artistic and technical quality of VFX across our game projects.

The scope covers a wide range of real-time game effects — from gameplay and character effects to UI animations, transitions, rewards, and other forms of visual feedback.

You will work closely with 2D Spine Animators, UI/UX, Art, Tech Art, Game Design, Product, and Development teams.

What Will Help You Succeed in This Role

To be successful in this role, we believe the following skills and experience will help you make an impact, grow with the team, and succeed in our company:

• Leadership experience in game development, including team management, regular 1:1s, performance reviews, mentoring, feedback, and knowledge sharing.
• Strong experience with casual mobile games.
• Strong hands-on Unity experience, including gameplay VFX, character effects, UI effects and animations, Particle System, Shader Graph, shaders, implementation, and optimization.
• Strong hands-on Spine experience — ability to create animations, review source files, prepare assets, and integrate Spine animations into Unity.
• Ability to independently take VFX and UI animation from concept to final in-game implementation and polish.
• Strong visual and motion design skills, with a good understanding of timing, composition, visual hierarchy, readability, and game feel.
• Ability to identify key gameplay moments and enhance their impact and player feedback through VFX and animation.
• Ability to evaluate a feature and determine the best implementation approach — Spine, Unity, VFX, or a combination of them.
• Ability to review the team's work and source files, maintain artistic and technical quality, identify blockers, and propose practical solutions.
• Experience planning team workload, reviewing estimates, distributing tasks, identifying resource needs, and supporting predictable delivery.
• Experience building and improving VFX and animation pipelines, technical standards, and production workflows.
• Solid Technical Art knowledge, including performance optimization and an understanding of technical limitations on mobile platforms.
• Confidence in proposing multiple creative or technical solutions and clearly explaining the reasoning behind your recommendations.
• Strong communication and cross-functional collaboration skills.
• A strong portfolio demonstrating a range of game VFX, including gameplay and/or character effects, as well as UI animation and effects.
• A gamer mindset — you enjoy games, understand player experience, and are interested in understanding why particular visual solutions work.

What Will Make You Stand Out

• Proficiency in two or more of the following languages would be a strong advantage: Mandarin Chinese, English, and Ukrainian.
• Openness to potential relocation to Japan would be a strong advantage.
• Experience working across multiple game projects or supporting multiple production teams.
• Experience with poker, card, or casino-style games and an understanding of their gameplay and player experience.
• Experience with After Effects or other motion design tools.
• If you don't have previous poker experience, a genuine interest and willingness to learn the game, its mechanics, terminology, and player experience will be highly valued.

Why Join Us?

If your experience matches this role and you’re looking for an opportunity to lead a team, stay hands-on, contribute your ideas, and influence the quality of our games, we’d love to hear from you.

Please send us your CV and a link to your portfolio — we look forward to learning more about you.