Jobs at Djinni

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. Now, we are looking for a Senior DevOps Engineer to join our team.
 
What will be your responsibilities:
 

• Design, build, and optimize high-load, highly available server-side platforms (Nginx, PHP-FPM, MySQL, Redis, message queues).
•  • Architect and maintain Kubernetes-based platforms and containerized workloads (Docker, Helm, GitOps).
•  • Design and operate secure network infrastructure:
•  – firewalls (iptables, UFW, security groups, NACLs)
•  – reverse proxies and L7/L4 load balancers
•  • Implement DDoS protection and WAF strategies (Cloudflare, rate-limiting, bot protection).
•  • Build and maintain observability stack:
•  – metrics (VictoriaMetrics, Prometheus)
•  – APM (New Relic, OpenTelemetry)
•  – centralized logging and alerting
•  • Design, implement and continuously improve CI/CD pipelines (Jenkins, GitHub Actions).
•  • Automate infrastructure and platform lifecycle using IaC and configuration management.
•  • Participate in architecture design, reliability engineering and capacity planning.
•  • Ensure security, compliance and audit readiness (PCI DSS, secrets management, access control).

 
What we expect from you:
 

• Strong hands-on Linux expertise (Debian, Ubuntu, systemd, networking, performance tuning).
• • Deep experience with AWS:
•  – compute (EC2, ASG, EKS)
•  – networking (VPC, LB, peering)
•  – managed databases (RDS Aurora)
•  – messaging (SQS, Kafka).
•  • Strong database operations knowledge: MySQL HA, replication, backup.
•  • Production experience with Kubernetes (cluster architecture, HA, upgrades, disaster recovery).
•  • Advanced CI/CD experience: Jenkins, GitHub Actions, GitOps practices.
•  • Strong Cloudflare expertise: DNS, CDN, WAF, DDoS protection.
•  • Infrastructure as Code: Terraform (mandatory), Ansible (configuration and automation).
•  • Scripting and automation in Bash and Python.
•  • Solid understanding of networking and security fundamentals (TLS, IAM, VPN, firewalling, zero-trust).
•  • Experience working in regulated environments or with security standards (PCI DSS is a plus).

 
What we offer:
 

We believe that a happy team builds the best products. Here is how we support you:
 

• Remote & Flexible: Work from anywhere. Our core hours are 10:00 to 18:00 (Kyiv time), Mon-Fri.
• Financial Stability: Timely payment for compensation for services
• Personal Equipment Policy: equipment are provided for use to ensure comfortable and efficient work.
• Knowledge Sharing: We regularly gather to discuss new trends, share insights, and elevate one another.
• Community: At NuxGame, you will work in a team of like-minded people who are ready to support, inspire, and tackle complex challenges together.
• Creative Freedom: We encourage initiative. With us, you have the freedom of professional expression and the space to implement your ideas.
• Time-off Policy: 24 vacation days per year + 5 sick days (without medical confirmation).
• Atmosphere: A friendly environment focused on results and mutual respect, free from unnecessary bureaucracy and pressure.

We believe in unlocking the inner potential of each team member within an open and democratic culture.

Waiting for you on our team!

Who we are

JetOctopus is a technical SEO platform with 10 years on the global market. We bring crawl data, server logs, Google Search Console, and GA4 together in one place, and we track how AI crawlers like GPTBot and ClaudeBot behave on large sites. 

Our customers range from Ukrainian market leaders (Rozetka, Auto.ria, Dim.ria, Comfy, Promodo) to global brands like Adidas, Glovo, HubSpot, and Rituals. Low churn, customers on every continent, and a flow of leads that come by word of mouth. The product sells well; we want the content to match it.
 

The role

You'll create content at JetOctopus across our channels. Your main focus: maximum visibility for our site in both organic search and LLM answers. 
 

The content itself is technical. We write about SEO for people who do SEO for a living, so you need to genuinely understand the field, not just the keywords.
 

What you'll actually do

• Write for the blog, landing pages, and email newsletters 
• Run our LinkedIn & X
• Help drive off-site visibility: Reddit, YouTube, third-party sources
• Experiment on platforms that are new to us — today we're on LinkedIn, YouTube, and X, but there's a lot of ground we haven't touched yet
• Create content for decks, presentations, and case studies, and brief the designer on new pages
   

You're probably a fit if you have

• 4+ years in writing content, ideally in B2B SaaS or product IT
• Real SEO expertise and experience writing content that ranks — and, ideally, gets cited by LLMs
• A portfolio with numbers behind it: traffic, engagement, conversions
• Deep understanding of how content-led funnels work
• Advanced (C1+) English
• The self-organization to carry a piece from concept to release without being chased
   

One thing we care about deeply: we're an "Always Human" brand. We're very AI-friendly — use it to proofread, analyze, research, organize. But the writing and the voice have to be yours. If your portfolio reads as if AI wrote it, we're not a match.
 

What you get

• Remote-first culture: work from wherever you think best
• A technically complex product with a name in the global SEO community — and the brands to prove it
• Subscriptions to every tool you need
• Full or partial compensation for courses and training
• Competitive salary in EUR, FOP taxes covered, 20 days of vacation + public holidays 

PLEASE NOTE that we are searching for candidates who are located in Lviv and are able to visit office in Lviv.

About us:

EveryMatrix is a leading B2B SaaS provider delivering iGaming software, content and services. We provide casino, sports betting, platform and payments, and affiliate management to 200 customers worldwide.

But that's not all! We're not just about numbers, we're about people. With a team of over 1000 passionate individuals spread across twelve countries in Europe, Asia, and the US, we're all united by our love for innovation and teamwork.

EveryMatrix is a member of the World Lottery Association (WLA) and European Lotteries Association. In September 2023 it became the first iGaming supplier to receive WLA Safer Gambling Certification. EveryMatrix is proud of its commitment to safer gambling and player protection whilst producing market leading gaming solutions.

Join us on this exciting journey as we continue to redefine the iGaming landscape, one groundbreaking solution at a time.

We are looking for a passionate and dedicated Strong Middle BI/DB Developer to join our team in Lviv!

What You'll get to do:

• Develop real‑time data processing and aggregation pipelines.
• Create and modify data marts to enhance the data warehouse.
• Manage internal and external integrations.
• Design and deliver various types of reports.
• Main Stack Databases: Google BigQuery, PostgreSQL, SQL ETL: Apache Airflow, Apache NiFi Streaming: Apache Kafka

What You need to know:

• Bachelor’s or Master’s degree in a STEM field.
• Solid understanding of Computer Science fundamentals: Software Engineering, Algorithms, Operating Systems, Networking, etc.
• Strong knowledge of at least one RDBMS (Google BigQuery, PostgreSQL, MSSQL, Oracle, MySQL), including: Query optimization Indexing strategies; Partitioning Practical experience with ETL/ELT processes.
• Experience in creating or supporting Data Warehouses.
• Hands‑on experience with at least one enterprise Business Intelligence platform.
• English: Intermediate+ (reading, writing, speaking).
   

Nice to have:

• Knowledge of analytical data warehouse systems (Google BigQuery, Azure Synapse Analytics, AWS Redshift, Snowflake).
• Programming skills in one language (Python or Java).
• Experience with additional tools and systems such as Apache Airflow and Apache NiFi.
  
  Here's what we offer:
• Start with 22 days of annual leave, with 2 additional days added each year, up to 32 days by your fifth year with us.
• 3 sick leave days per year, no doctor's note required; 30 medical leave days with medical allowance
• Hybrid work schedule is available after the first three months of employment with 80/20 office/home format until the end of 2026. Starting from 2027, the policy will transition to primarily office-based work, with up to 10 work-from-home days per year with manager approval.
• Benefit from two Free Fridays each year, limited to one per quarter.
• Daily catered lunch or monthly lunch allowance. 
• Private Medical Subscription. 
• Access online learning platforms like Udemy for Business, LinkedIn Learning or O’Reilly, and a budget for external training.
• Gym allowance.
• Corporate English lessons.
• Support for New Parents:
• 21 weeks of paid maternity leave, with the flexibility to work from home full-time until your child turns 1 year old.
• 4 weeks of paternity leave, plus the flexibility to work from home full-time until your child is 13 weeks old.

Our office perks include on-site massages and frequent team-building activities in various locations.

At EveryMatrix, we're committed to creating a supportive and inclusive workplace where you can thrive both personally and professionally. Come join us and experience the difference!

Project description

A leading provider of drilling fluid, solids control, and waste management solutions that support well construction and industrial drilling operations. Its technologies are designed to improve drilling efficiency, maintain wellbore stability, optimize fluid performance, manage drilling waste, and protect reservoir integrity. The portfolio includes water-based, synthetic-based, and nonaqueous fluid systems, as well as equipment and services for solids separation, fluid recovery, and environmental compliance. These solutions are widely applied in oil and gas, geothermal, mining, water well, horizontal directional drilling, and civil engineering projects.

Responsibilities

Develop predictive models to optimize drilling performance, fluid properties, and operational efficiency.

Analyze real-time drilling and sensor data to detect anomalies, reduce nonproductive time (NPT), and improve wellbore stability.

Build machine learning solutions for forecasting drilling risks, lost circulation events, equipment failures, and fluid losses.

Design data pipelines and dashboards that integrate operational, geological, and engineering data for decision support.

Apply statistical analysis and advanced analytics to identify performance trends and recommend process improvements.

Develop digital solutions for drilling fluids monitoring, solids control optimization, and waste management efficiency.

Collaborate with drilling, fluids, and operations engineers to translate business challenges into data-driven solutions.

Implement data quality, governance, and validation frameworks to ensure reliable operational analytics.

Create visualization tools and KPIs for tracking drilling performance, fluid system effectiveness, and cost optimization.

Skills

Must have

Strong proficiency in Python and SQL for data analysis, machine learning, and data engineering.

Experience with machine learning algorithms, predictive analytics, and statistical modeling.

Expertise in data visualization tools such as Power BI, Tableau, or Plotly.

Experience processing large-scale time-series, sensor, and operational data.

Knowledge of cloud platforms (Azure, AWS, or GCP) and big data technologies.

Strong understanding of data pipelines, ETL processes, and data quality management.

Experience with anomaly detection, forecasting, and predictive maintenance applications.

Solid understanding of statistical analysis, hypothesis testing, and experimental design.

Ability to develop and deploy machine learning models in production environments.

Experience working with cross-functional engineering and operations teams.

Strong problem-solving, communication, and stakeholder management skills.

Nice to have

Experience analyzing real-time drilling, completions, or industrial operational data.

Knowledge of drilling fluids, solids control, wellbore stability, and drilling performance KPIs.

Understanding of IoT, telemetry, SCADA, and sensor-based monitoring systems.

Experience building predictive models for operational risk reduction and performance optimization.

Familiarity with digital transformation initiatives in energy, manufacturing, mining, or heavy industry environments.

Ability to translate engineering challenges into scalable data science solutions.

Languages

English: B2

Mate academy — EdTech стартап з AI powered LMS-платформою, де люди опановують IT-професії з нуля.

🤘 6000+ випускників змінили свою кар’єру й успішно стартували в IT.

🌎 Ми активно зростаємо в Україні, Польщі та Бразилії — і це тільки початок.

Ми шукаємо нашого Ментора для найкращого курсу SMM для новачків на ринку України.

Це part-time & remote робота, яка оплачується погодинно.

Основна задача ролі — допомагати студентам ефективно і з задоволенням засвоювати матеріал у процесі навчання, щоб по закінченню курсу кожен зміг знайти своє найкраще місце роботи у сфері SMM.

Що ми очікуємо від тебе:

• 1+ рік досвіду роботи як SMM-менеджер з можливістю продемонструвати успішні кейси у портфоліо

• Ти впевнено працюєш з Instagram, TikTok, та точно підхопиш роботу з Facebook, LinkedIn при необхідності

• У тебе класний відео- та фотоконтент (Reels, TikTok), який любить аудиторія

• Ти знаєш як аналізувати результати своєї роботи й оперуєш метриками ефективності

• Тобі подобається допомагати людям вирішувати проблеми

• Ти вмієш якісно планувати свій час та самостійно систематизувати власний графік

Твоєю перевагою буде:

• Досвід або розуміння, як працювати з такими інструментами, як InShot, CapCut, Adobe Premiere Pro

• Досвід менторства, навчання інших, або точно бажання в цьому розвиватися.

Твої задачі будуть наступними:

• Ознайомлення з контентом (теорією і практичними завданнями) та можливе покращення матеріалів

• Перевірка домашніх завдань студентів курсу

• Відповіді на питання студентів в чаті та на відео дзвінках

• Проведення пробних технічних інтерв’ю для студентів

• Пропонування ідей для вдосконалення нашого навчального процесу

• Якщо ти захочеш зростати на цій посаді - зможеш взяти на себе роль інтервʼюера нових менторів та їх онбординг

Що ти отримаєш, працюючи в Mate:

— Можливість допомогти людям розпочати кар'єру в IT
— Мінімум бюрократії
— Неймовірну команду, яка пишається своєю справою, що перетворює роботу на захоплюючу пригоду
— Практику твоїх soft-skills — менторство чудовий спосіб швидше дорости до Senior позицій
— Погодинну оплату і гнучкий графік (твій тиждень менторства буде включати 10+ годин роботи, які ти сам (-а) можеш розподілити протягом тижня.

Етапи відбору:
1. Надішли своє CV 📄
2. Зроби тестове завдання ✍️
3. Пройди відео-співбесіду — це цікаво і швидко 👩‍💻 - до 30 хв
4. Пройди технічну співбесіду - до 1 год

Ця пропозиція відповідає твоїм кар’єрним цілям? Пропоную знайомитись 🤗

We are looking for an experienced Data Engineer to design and maintain robust data infrastructure across our systems. In this role, you will be responsible for building scalable data pipelines, ensuring data integrity, and integrating third-party data sources. Your primary focus will be to enable efficient data flow and support analytical capabilities across the organization. You will also contribute to the development of our data architecture, implement best engineering practices, and collaborate closely with cross-functional teams to turn raw data into actionable insights.

Requirements

• 3+ years of commercial experience in Data Engineering
• Experience gathering business requirements and communicating with stakeholders
• Strong knowledge of Data Warehouse (DWH) architecture and principles
• Hands-on experience designing data warehouses and building ETL pipelines
• Deep practical experience with Python
• Hands-on experience in one or more of the following areas: data processing using PySpark, Apache Spark, Pandas, or similar frameworks; data scraping; integration of third-party data sources and APIs
• Proficiency in SQL and relational databases such as PostgreSQL and MySQL
• Hands-on experience with column-oriented databases such ClickHouse, Snowflake, Cassandra, BigQuery (many tables with millions of records and above each)
• Solid understanding of software design patterns, algorithms, and data structures
• Intermediate English proficiency

Will be a plus

• Experience with messaging platforms such as RabbitMQ or Kafka
• Familiarity with DataOps practices and data pipeline automation
• Familiarity with CI/CD pipelines and Kubernetes environments
• Background in FinTech or Trading domains

Responsibilities

• Communicate with technical and non-technical stakeholders to gather and clarify business requirements
• Review and analyze data and business logic to ensure consistency, accuracy, and reliability
• Design, implement, and maintain data pipelines for efficient and scalable data processing
• Integrate, maintain, and support data solutions and third-party data sources
• Research and evaluate third-party tools, services, and components for potential use
• Follow engineering best practices, including code reviews, testing, refactoring, and continuous delivery
• Design, optimize, and maintain data storage solutions

What we offer:

• Tax expenses coverage for private entrepreneurs in Ukraine
• Expert support and guidance for Ukrainian private entrepreneurs
• 20 paid vacation days per year
• 10 paid sick leave days per year
• Public holidays as per the company’s approved Public holiday list
• Medical insurance
• Opportunity to work remotely
• Professional education budget
• Language learning budget
• Wellness budget (gym membership, sports gear and related expenses)

Responsibilities:

- Full-stack development (frontend + backend) on PHP Laravel

- Feature development per the roadmap

- Bug fixing

- Unit and integration tests

- Building new services for the Transformation Squad

- Code review, estimation, and sprint planning

- Collaboration with QA, DevOps, Tech Lead, and Product Owner

Requirements:

- 4+ years of commercial PHP experience, 3+ years with Laravel

- Fullstack development experience

- Strong MySQL knowledge

- REST API experience

- Understanding of clean code, SOLID principles, and design patterns

- English B1+

Nice to have:

- Couchbase/Redis/MongoDB

- RabbitMQ/Pub-Sub event-driven architecture

- GCP

- Monolith-to-microservices transition experience

- E-commerce/marketplace experience

- Frontend frameworks on Laravel (Vue.js, Livewire)

We are looking for a senior product leader to own our internal marketing management platform used by advertising teams to create and manage campaigns, configure traffic routing, monitor financial performance, and track conversions.

You will work directly with the CEO and act as the product owner for the entire domain: define its development direction, turn business priorities into a coherent roadmap, and ensure product decisions are consistently translated into execution.

The role also owns the TPM function within the domain, ensuring Technical Product Managers operate with strong product context, clear priorities, and consistent delivery standards.

Responsibilities

• Own the product strategy and roadmap across all marketing platform components.

• Translate CEO and business priorities into clear product priorities and sequencing.

• Develop a deep understanding of advertising managers, their workflows, pain points, and operational needs.

• Act as the primary decision and prioritization point across business, TPMs, and Engineering.

• Resolve scope, priority, and cross-track conflicts within the domain.

• Manage, mentor, and align Technical Product Managers responsible for individual product tracks and initiatives.

• Set clear ownership boundaries and expectations across TPM tracks.

• Establish and improve standards for requirements, planning, roadmap management, risk management, release coordination, and post-release validation.

• Ensure initiatives move from business need to released and adopted product outcomes.

• Continuously improve the operating model between Product, TPMs, Business, and Engineering.

Experience and Skills

• 5+ years of product management experience, including ownership of technically complex products or platforms.

• Experience as a Head of Product, Product Lead, Group Product Manager, Principal Product Manager, or equivalent senior role.

• Proven experience owning a product domain with multiple interconnected systems and competing priorities.

• Strong product judgment and ability to make decisions in ambiguous environments.

• Experience working directly with founders, CEOs, or senior business leadership.

• Strong understanding of software development, technical constraints, integrations, and data flows.

• Experience managing or mentoring Product Managers, Technical Product Managers, or Product Owners.

• Strong prioritization, stakeholder management, and cross-functional leadership skills.

• Ability to balance business impact, user needs, technical complexity, and delivery constraints.

• Experience in AdTech, MarTech, campaign management, traffic routing, attribution, conversion tracking, or adjacent domains is a strong advantage.

What we offer

• Paid vacation and sick leave

• The opportunity to work in a dynamic team of professionals driven by a shared passion for product innovation and real impact

• A flat structure with no micromanagement and full ownership of your work

• A remote-first culture with flexible working hours

• The opportunity to shape and scale the product and TPM function from the ground up

We're looking for someone who combines a creative strategist and a user acquisition lead — the owner of user acquisition who builds creatives that actually work and personally drives their scaling on Meta Ads. This isn't an execution role inside a ready-made structure. We're looking for someone ready to build the UA function from the ground up into a real system, make decisions on both the numbers and the content, influence business results, and grow together with the product.

Role context:

Product: a digital product for a business audience (details shared at the interview stage).

Geo: Tier-1 — US, Canada, and others.

Channels: Meta Ads (primary). 

Funnels: Web-to-Web and Web-to-App — the funnel is already built and working, no need to create it from scratch.

Spend: a significant monthly budget with an active scaling plan (numbers shared at the interview).

Role split — 60/40:

• 60% Creative: research on competitors, audiences, spy tools; generating ideas and hooks; briefing designers/AI production; analyzing why a creative worked or didn't.
• 40% User acquisition & analysis: launching campaigns, reading the numbers, deciding what to scale and what to kill.

Team philosophy: a small, effective team with no bloated headcount — no juniors, only self-sufficient, strong people.

Zero bureaucracy and zero micromanagement: decisions are made fast, we work for results, not process.

Creatives are produced through an AI pipeline (static/video generation, AI avatars) — you own and run it yourself. This person needs to work hands-on with tools and systems, not "manage vendors."

Compensation:

Base + % of spend with a KPI gate:

• Base salary range — $2,500–4,000 to start (final number negotiable, depending on level).
• Bonus: 2% of monthly spend up to $100k + 2.5% on everything above $100k — no cap: the more you scale, the more you earn.
• Bonus is paid when average monthly CPA is ≤ target cap and early cohort re-bill is at or above the norm (a quality-of-traffic safeguard).
• CPA exceeds cap by up to 15% → bonus rate ×0.5; more than 15% → no bonus for that month.
• Everything is calculated from two numbers (spend + CPA); you see the calculation base in the dashboard.
• Base salary review after 6 months based on results.

Equity: after 12 months of collaboration, based on results — the opportunity to receive a share/option in the product. This is a level of partnership that corporate structures simply don't offer.

Fully remote, no office ties!

A working funnel and product — not a "maybe it'll take off" startup lottery: the funnel is built, there are sales, the job is to systematize and scale.

AI-first approach: creative production runs on an AI pipeline, with budget for tools and freedom to experiment with the stack.

No bureaucracy: direct access to the founder, decisions made within a day, no approvals through five layers of management.

What you'll be responsible for:

• Researching competitors, audiences, and spy tools to generate ideas and hooks. 

• Briefing designers and AI production with high-quality creative requirements. 

• Implementing and developing AI tools in creative production (static/video generation, AI avatars). 

• Building and evolving a creative testing system. 

• Managing Meta Ads campaigns for Tier-1 markets (US, Canada, and others). 

• Forming hypotheses, analyzing test results, and scaling winning creative + targeting combinations. 

• Analyzing campaign performance: CPA, ROAS, cohort analytics, and key business metrics. 

• Scaling ad campaigns without losing efficiency. 

• Contributing to the development of the product's creative and marketing strategy.

What we're looking for:

• AT LEAST 2 years of experience as a User Acquisition Manager or Creative Strategist with a performance focus. 

• Experience working at product companies with a strong performance culture. 

• Hands-on experience managing budgets of $50,000+ per month on Meta Ads. 

• Experience working with Tier-1 markets. 

• Understanding of Web-to-Web and/or Web-to-App funnels. 

• A strong feel for creative: understanding hooks, trends, and why something resonates with an audience. 

• Experience building creative testing processes and making data-driven decisions. 

• Hands-on experience briefing designers and working with AI creative generation tools. 

• Strong analytical skills and systems thinking. 

• Self-driven, with ownership of results.

Nice to have:

• Experience with AppsFlyer, Adjust, AEM, CAPI. 

• Experience with spy tools (AdSpy, PiPiADS, Foreplay, etc.). 

• Experience scaling ad budgets 2–3x while maintaining target metrics.

• Experience with Google Ads or TikTok Ads.

What we offer:

• A hybrid role with a high level of autonomy and influence over the business — on both creative and numbers. 

• Base salary of $2,500–4,000 (depending on experience). 

• A bonus system tied to results and scaling. 

• The opportunity for a compensation review based on performance. 

• A path to equity in the product after a successful collaboration. 

• Fully remote work format. 

• A working product and an already-built sales funnel. 

• An AI-first approach and budget for modern tools. 

• Fast decision-making with no unnecessary bureaucracy.

If you're excited not just to run campaigns or just to make creatives, but to combine both and build a system that scales the product — I'd love to talk.

We are looking for a Senior Go / Kubernetes Developer with strong hands-on experience in Golang and Kubernetes-native development to join Implex and work on a long-term international Cloud & Edge Infrastructure project within a major European digital sovereignty initiative.

The engineer will contribute to the development of a next-generation cloud-edge platform and cloud-native infrastructure components based on Kubernetes and Go. The role involves designing Kubernetes Operators and Controllers, building Kubernetes-native APIs and automation for infrastructure environments, and contributing to architecture and technical design decisions.

Project Overview

• The project focuses on building a next-generation cloud-edge platform and developing cloud-native infrastructure components based on Kubernetes and Go.

Responsibilities

• Design and develop Kubernetes Operators and Controllers in Go
• Develop cloud-native backend services and Kubernetes-native APIs
• Implement Custom Resource Definitions (CRDs) and controller logic
• Build automation solutions for Bare-Metal Kubernetes environments
• Integrate infrastructure, networking, and platform components using Kubernetes APIs
• Develop unit, integration, and end-to-end tests
• Contribute to architecture and technical design decisions
• Participate in code reviews and technical documentation

Required Skills

• Strong professional experience with Go (Golang)
• Hands-on experience developing Kubernetes Operators and Controllers
• Kubernetes API, client-go, controller-runtime
• Custom Resource Definitions (CRDs)
• Kubebuilder and/or Operator SDK
• REST and/or gRPC
• Containerized application development
• Distributed systems
• Fluent English communication skills

Nice to Have

• Bare-Metal Kubernetes
• Edge Computing
• Telco Cloud environments
• GitOps
• Prometheus / OpenTelemetry
• Cluster API (CAPI)
• Metal³ / Ironic
• AI/ML infrastructure workloads

Project Details

• Start: ASAP
• Workload: Full-time
• Location: EU

We are looking for a Senior Manual QA Engineer (Desktop macOS) to join our PDF Expert team. You’ll help ensure the quality and reliability of a product used by millions of people, working closely with developers and the product team to test new features and improve the overall user experience.

What you'll do:

• Own end-to-end QA for PDF Expert iOS/Mac/Web releases - plan and run release testing so every version ships on time, bug-free in covered scenarios.
• Build and maintain test plans, test runs, and test cases in QA Sphere covering the app's key user flows, keeping them current to avoid hotfixes.
• Drive post-release quality - monitor customer issues (Helpspot) and crashes (AppCenter), triage and close resolutions in Jira.
• Ensure PDF Expert's key dependencies - pdfexpert.com and the checkout flow - work as expected for customers.
• Help maintain the quality bar for AI-powered features in the app.
• Partner with Product, Design, and Engineering across planning, grooming, and design reviews, surfacing risks early and contributing to strategy.
• Drive continuous improvement of QA processes by reviewing teammates' test cases/runs and proposing improvements.

About you:

• 2+ years of hands-on manual QA experience, ideally with native mobile/desktop apps (iOS/macOS).
• Strong test design skills - writing clear test plans, test cases, and test runs (experience with QA Sphere or similar tools is a plus).
• Solid grounding in QA fundamentals: functional, UI/UX, regression, and localization testing.
• Proven experience owning release testing and sign-off before shipping to customers.
• Practical experience with Jira (or similar) for tracking, prioritizing, and closing bugs.
• Strong attention to detail combined with the ability to estimate testing effort accurately.
• English at B2 level or higher, for clear collaboration with Product, Design, and Dev.

Would be a plus:

• Experience testing subscription, checkout, or in-app purchase flows, ideally with Stripe or PayPal.
• Familiarity with crash-reporting/analytics tools (e.g., Firebase) and customer support platforms (e.g., Helpspot).
• Basic understanding of security and privacy testing principles.
• Exposure to testing AI-powered features or LLM-based functionality.
• Familiarity with Figma or similar tools for reviewing designs.
• Experience testing the same product across multiple platforms (iOS, macOS, Web).
• Experience reviewing or mentoring on test cases/test runs written by other QA engineers.

What you will get at Readdle:

• Customer-centric culture. We put our users at the heart of everything we do. Every team member has the opportunity to engage directly with customers, gaining insights that shape meaningful, delightful experiences for millions worldwide.
• Relentless growth. We’re committed to mastery in our craft. We take ownership of our work, decisions, and outcomes, and we see feedback as a catalyst for growth. Every challenge is an opportunity to learn, evolve, and raise the bar.
• Exceptional people, exceptional team. Our greatest strength is our people. We care deeply about each other, work transparently, and celebrate collective success. Together, we build an environment where everyone can do their best work and grow beyond their potential.
• Real impact. We design products that truly matter. Our focus is on delivering tangible value, simplifying complexity, pushing boundaries, and continuously improving how we build and deliver solutions to our users.
• Culture of innovation. We embrace curiosity and creativity in everything we do. Fresh ideas are not just welcomed, they’re expected, celebrated, and turned into real innovations that shape the future of our products and company.

Мрія — освітня екосистема для учнів, батьків/опікунів і вчителів, що надихає вчитися та допомагає знайти себе в сучасному світі. Це ініціатива Президента України, яку реалізують Мінцифри та МОН за підтримки Програми EGAP, що виконується Фондом Східна Європа коштом Швейцарії.

Шукаємо DevOps Engineer, який/яка допоможе забезпечувати стабільну та безперебійну роботу Мрії, розвиваючи й оптимізуючи інфраструктуру, що щодня підтримує освітній процес мільйонів українців.

Наша команда шукає людину, яка:

• Має від 1 року досвіду роботи у сфері DevOps або системного адміністрування

• Має глибокі знання Kubernetes (on-premise) та досвід роботи з Docker, Helm, ArgoCD

• Впевнено володіє інструментами CI/CD, зокрема GitLab CI

• Має досвід роботи з базами даних PostgreSQL, MSSQL та Redis

• Знає системи моніторингу та логування (Prometheus Stack, ELK Stack)

• Має досвід роботи з Infrastructure as Code (Terraform, Ansible)

• Впевнено працює з Linux-системами

• Володіє технічною англійською на рівні читання документації

• Готова працювати в офісі 

• Має вищу освіту

Буде перевагою:

• Досвід роботи з NoSQL-рішеннями (ScyllaDB)

• Досвід роботи з S3-сумісними сховищами (MinIO, Ceph)

Чим ви будете займатися:

• Налаштовувати, підтримувати та масштабувати Kubernetes-кластери on-premise

• Розвивати системи моніторингу та алертингу на базі Prometheus Stack

• Налаштовувати централізований збір та аналіз логів за допомогою ELK Stack

• Встановлювати, конфігурувати та адмініструвати PostgreSQL, MSSQL, ScyllaDB, Redis/DragonflyDB

• Розробляти та підтримувати CI/CD-процеси за допомогою GitLab CI

• Керувати GitOps-процесами та деплойментами з використанням ArgoCD

• Реалізовувати Infrastructure as Code за допомогою Terraform та Ansible

• Працювати з S3-сумісними сховищами (AWS S3, MinIO, Ceph)

• Керувати релізами програмного забезпечення з використанням Helm

• Забезпечувати базову підтримку хмарних сервісів

Що ми пропонуємо:

• Повну зайнятість у проєкті, важливому для майбутнього освіти в Україні

• Офіційне працевлаштування

• Роботу в офісі в центрі Києва

• Можливість долучитися до команди професіоналів, які змінюють освітню систему України

• Участь у створенні продукту, що впливатиме на майбутнє покоління

• Вакансія передбачає опцію бронювання

Етапи найму: співбесіда з HR → технічне інтерв'ю → знайомство з Delivery Manager → кадрова перевірка → офер

Якщо це не для вас, але ви знаєте людину, яка створена для цієї вакансії, — порекомендуйте, будь ласка!

Company overview:
 

Graphio.ai stops revenue loss before it happens by detecting broken handoffs between teams.
 

We analyze API-enabled metadata from your existing systems to automatically identify when Sales, Customer Success, Legal, Finance, Product, and Operations are misaligned - before deals stall, renewals fail, or contracts slip.
 

No workflow changes. Fast rollout in less than 2 days.

AI learns what successful execution looks like in your company and alerts you to dangerous deviations in real time.

We’ve built and scaled before: the team behind Graphio.ai previously built upSWOT, a B2B platform adopted by hundreds of financial institutions, which was later acquired by Uptiq.  We’re applying those lessons in execution, delivery, and scale to Graphio.ai.

Supported by senior leaders from Experian, Mastercard, Lattice, BambooHR, Altrata, SAP, JackHenry, FIS, Pfizer, Workday, Customertimes, and more (graphio.ai/investors).

Position Overview:

We are looking for a Junior/Middle Backend Developer to help build and maintain the backend services that power Graphio.ai’s workflow intelligence product.

In this role, you will work on C# / .NET–based APIs and backend services that support customer onboarding (workspace setup and invites), system integrations, metadata ingestion and processing, and generation of user-facing outputs such as weekly/monthly reports and alerts.

You will join a small team where shipping, reliability, and clean engineering practices matter. This is a role for someone who wants to grow fast by working on real production systems, with support from senior engineers and clear technical direction.

Key Responsibilities:

• Build and maintain backend services and REST APIs using C# / .NET (ASP.NET Core) that powers core Graphio.ai flows: workspace setup, user access, system integrations, metadata ingestion, reporting, and alert delivery.
• Write clean, maintainable code and follow team standards; contribute to refactoring and long-term code health when needed.
• Work on ingestion and processing of metadata (events, entities, timestamps, identifiers) used for workflow intelligence and reporting.
• Design and implement asynchronous and event-driven processes using RabbitMQ (queues, background jobs, retries, idempotency).
• Improve API reliability and performance: clear contracts, consistent error handling, pagination, and rate limiting.
• Work with databases:
  • MongoDB for operational and metadata storage,
  • ClickHouse for analytics, aggregations, and reporting workloads.
• Write and optimize queries, design schemas and indexes, participate in migrations, and help ensure data integrity and consistency.
• Implement authentication, authorization, and secure-by-default practices (permissions, tenant boundaries, safe handling of sensitive data).
• Write unit and integration tests; participate in code reviews and apply feedback quickly.
• Monitor and troubleshoot services in production: use logs, metrics, and tracing; contribute to root-cause fixes.
• Document backend services and APIs: how they work, how to run locally, and how to debug common issues.
• Contribute to engineering workflows: Git-based collaboration, containerized development (Docker), and CI/CD practices.
• Collaborate with Product, Frontend, and Engineering peers to deliver features in small, shippable increments in a remote environment.

Required Qualifications:

• 1–2 years of backend development experience (or equivalent production experience through projects).
• Strong knowledge of C# and .NET (ASP.NET Core, Web API).
• Experience building REST APIs, including authentication, authorization, error handling, pagination, and versioning.
• Hands-on experience with MongoDB: schema design, indexes, aggregations, and query optimization.
• Understanding of analytical databases; experience with or willingness to learn ClickHouse (aggregations, partitioning, performance tuning).
• Experience with message queues and background processing; RabbitMQ is a strong plus.
• Understanding of asynchronous processing, eventual consistency, and retry mechanisms.
• Knowledge of secure engineering basics (auth, permissions, data protection).
• Comfortable working in a remote team: clear written communication, ownership of tasks, and predictable delivery.

Nice to Have:

• Experience building event-driven architectures and data pipelines.
• Experience working with large datasets and performance optimization.
• Familiarity with observability tools (logging, metrics, tracing).
• Startup experience or proven ability to move fast without heavy process.
• Experience with Kubernetes or cloud platforms (AWS, GCP, Azure).

What we offer:

• A practical growth role on real backend services used by customers, with clear feedback and mentorship from senior engineers.
• Work on meaningful product flows: metadata processing, workflow intelligence outputs, and reporting/alerts.
• A startup environment with low bureaucracy and fast iteration - you ship, learn, and improve quickly.
• Remote-friendly team with a simple setup and high trust.
• Competitive compensation (based on level) and growth opportunities as the team scales.

Company Operating Requirements:

At Graphio.ai we run a high-ownership, mission-driven team with clear operating rules. Please read these carefully before applying:

• LinkedIn profile is required (company policy). Employees are required to keep a current LinkedIn profile that shows their Graphio.ai position and is linked to the official Graphio.ai company page (company logo visible on the profile). Profile standards are provided during onboarding.
• Synchronized team vacations. The team takes coordinated time off four times per year to keep planning aligned and reduce context switching. Dates are announced in advance.
• Startup constraints. Vacation timing may be restricted during critical company periods. We plan time off as a team and communicate constraints early.
• Relocation readiness. Team members may reside in Ukraine, but must be prepared to relocate with their families to Europe or the United States if the company requests it and it becomes legally possible. Any relocation would be discussed in advance.
• Non-standard schedule. The role requires flexibility to collaborate across time zones. This may occasionally include early/late meetings depending on customer and team needs.
• Zero slow offboarding. We run lean and fast. When the fit isn’t there, we act quickly: employment may be ended within a day and access is removed immediately.

Application requirement: short intro video (required):

Please include a short self-introduction video (2–5 minutes). You can add the link directly to your resume or submit it through the hiring platform in any available way (YouTube, Loom, Google Drive, or similar).

• No need for a polished production, a simple smartphone recording is perfectly fine.
• This does not replace live conversations, it only helps us speed up the first screening and understand your communication style and motivation.
• In the video, please cover:
  • Who you are and 2–3 measurable outcomes you delivered in recent roles
  • Why you are applying for this role at Graphio.ai
  • Why you are leaving or have left your previous role
  • Your view on how a high-ownership startup team should operate (pace, ownership, communication, and work-life balance expectations)
• Applications without the video may not be reviewed.

Final note:

Graphio.ai is not a 9-to-5 corporate environment. We move fast, operate with high ownership, and expect proactive execution without micromanagement. Graphio.ai is a strong fit for people who actively seek challenges for personal growth - especially those who want to build their own company one day and see this as a place to learn how high-performing startups execute.

We are looking for an experienced Senior SEO Specialist / Team Lead / Head with a strong technical background and expertise in the iGaming vertical, ready to take charge of an affiliate project portfolio across international markets. If you know how to automate processes, build large-scale PBN networks, and manage risks in high-risk GEOs, we will provide you with full autonomy and all the necessary resources to execute large-scale strategies.
 

🎯 Key Responsibilities:

• Developing and implementing effective SEO strategies for affiliate websites (grey / black hat).
• Managing a network of projects with diverse SEO strategies and risk profiles.
• Launching websites tailored to key SEO objectives and configuring CDNs (Cloudflare, etc.).
• Implementing process automation (website deployment, link building, content, technical SEO).
• Organizing and monitoring backlink profile building (focusing on grey / black hat methods).
• Reacting promptly to algorithm updates and handling crisis management (manual actions, filters, blocks).
• Coordinating with cross-functional departments to achieve business goals.
   

✅ Requirements:

• 3+ years of experience in iGaming. 
• Up-to-date experience in iGaming at your most recent position.
• Experience with mono-brands and affiliate networks (multi-offer traffic generation, grey-hat promotion methods).
• Experience with PBN creation and optimization.
• Deep knowledge of On-Page, Off-Page, and Technical SEO.
   

🎁 What We Offer:

• Competitive salary with regular reviews and real growth opportunities.
• A 3-months probationary period for smooth onboarding.
• 16 calendar days of paid vacation, 7 paid sick leave days per year, 5 days off per year (up to 3 days per month).
• Flexible working hours: start your day anytime between 9:00 AM and 11:00 AM (Kyiv time) to balance work and personal life perfectly.

• Milestone and celebration bonuses for your Birthday, Work Anniversary, and successful completion of the probation period.
   

  Infrastructure & Resources: 

  Our processes are fully streamlined — you won't have to deal with manual routine work. We have a dedicated PBN department, a link-building team, as well as in-house copywriters and developers. No affiliate manager communication or offer negotiation required. Your main focus will be analysis, strategy, and process coordination.

Meet the YozmaTech

YozmaTech isn’t just another tech company – we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster.
We build dedicated development teams across 10+ countries, creating strong, long-term partnerships based on trust, transparency, and real impact.
Here, every idea counts. We value people who are proactive, open-minded, and ready to grow. If you’re passionate about building meaningful products and want to join a team that feels like family – you’ll feel right at home with us.

Our client is a pioneer in the field of identity data solutions, is revolutionizing how businesses confidently identify their customers and prospects across multiple touchpoints. Whether it’s through websites, applications, or physical locations, they provide innovative ways for their partners to interact with and understand their audiences.

We are looking for a Senior Backend Engineer to help scale a high-throughput, real-time bidding
platform that sits at the core of our header-bidding and identity products. You will design and
operate Go services that handle very high request volumes with tight latency budgets, working
close to the auction path where milliseconds and correctness both matter.
This is a hands-on engineering role on a fast-growing product. You will own services end to end
— from design and implementation through deployment, observability, and on-call — and
collaborate with product, QA, and business-development colleagues to ship integrations with ad-
tech partners and demand/supply platforms.

Key Requirements:
🔹 Strong, production-level experience writing backend services in Go (Golang), including the
concurrency model, profiling, and performance tuning.
🔹 Demonstrable experience with header bidding — ideally hands-on with Prebid (Prebid
Server adapters, modules, or comparable auction-side work).
🔹 Experience building and operating high-throughput, low-latency distributed systems in
production
🔹 Solid grasp of HTTP/REST, JSON, and server-to-server integration patterns, plus
debugging across the request lifecycle
🔹 Comfort with relational databases (e.g. MySQL / Aurora) and cloud infrastructure (AWS),
including basic observability and deployment workflows
🔹 Pragmatic testing habits and a track record of shipping reliable software with good
operational hygiene
🔹 Strong debugging and problem-solving abilities;
🔹 Experience with CTV/video and post-bid measurement flows
🔹 Exposure to Prebid Server Java or other JVM services (useful for cross-module work). Experience with Kafka/streaming, Redis or similar caching layers, and container
orchestration (Docker/Kubernetes)
🔹 English – Upper-Intermediate or higher

What you will do:
🔹 Design, build, and operate high-throughput Go services on the real-time bidding and
header-bidding path, optimizing for latency, reliability, and cost at scale.
🔹 Develop and maintain Prebid integrations — Prebid Server adapters, bidder/identity
modules, and the supporting backend that powers them.
🔹 Build and harden integrations with ad-tech vendors (SSPs, DSPs, identity, and
measurement partners), including pixel, post-bid, and server-to-server flows
🔹 Profile and tune hot paths: concurrency, memory allocation, connection pooling, caching,
and request fan-out under high QPS
🔹 Own services through their full lifecycle — instrumentation, dashboards, alerting, and
participation in the on-call rotation.
🔹 Partner with product, QA, and business development to scope new partner integrations and
turn requirements into reliable, well-tested code.
🔹 Contribute to architecture decisions, code reviews, and engineering standards across the
Bidfusion team

Interview stages:
🔹 HR Interview;
🔹 Technical Interview;
🔹 Final interview;
🔹 Reference Check;
🔹 Offer;