Jobs

RESPONSIBILITIES

Backend Pipelines & Data Processing

• Build and maintain backend pipelines that consume data from Kafka, apply business logic/ETL, and produce reliable outputs at scale.
• Implement and optimize event-driven architectures (producers/consumers, streaming patterns, batching where relevant).
• Design systems around high volume / high throughput requirements (autoscaling, high availability, resilience).

Database & Performance (Postgres-heavy)

• Own data modeling and performance work in PostgreSQL: query tuning, indexing strategies, schema design, troubleshooting slow queries
• Work with additional data stores as needed (e.g., Redis) based on system needs.

Full-Stack Contribution (light frontend)

• Contribute occasionally to frontend needs in React (new pages, small UI fixes).

Production Engineering

• Build/operate services in a true production environment:
  • observability (logs/metrics/tracing), debugging, reliability improvements
  • performance profiling and bottleneck analysis

TECHNICAL REQUIREMENTS

Backend & Architecture

• TypeScript + Node.js (production experience)
• NestJS (strong preference, used as the main backend framework)
• Strong experience designing backend systems at high scale:
  • autoscaling, HA, performance, resilience, failure modes
• Strong knowledge of event-driven systems:
  • Kafka-based ingestion/streaming, producers/consumers, pipelines, batching concepts

Data Stores

• PostgreSQL / SQL proficiency (deep skills required: schema modeling, query optimization)
• Kafka (hands-on experience strongly preferred)
• Redis (working knowledge)

Infrastructure

• Experience working in AWS + Kubernetes environments (production familiarity expected)

Observability

• Practical experience with logs, metrics, tracing to monitor and debug production systems.

Nice-to-Have

• Security domain familiarity (application security / runtime protection / vulnerability management) — advantage, not mandatory
• Prior work in data-intensive security platforms or similar high-scale systems

AI Tooling Expectations

• Oligo strongly encourages AI-assisted development (primarily Claude; some Cursor).
• They have automation and AI-supported workflows (including AI-assisted code review) and value engineers who can work effectively in that environment.

START HERE

Most of what we need is ordinary platform work. One part is not.

We run a multi-tenant SaaS platform on Kubernetes with a MongoDB data tier, and we are designing it for its enterprise stage. The hardest problem in the engagement is reshaping stateful workloads in production without losing data, and designing tenant isolation so that one customer's load cannot degrade another's.

If reshaping a StatefulSet's storage in a live cluster is a problem you have actually solved rather than read about, keep reading. If it is not, the rest of this list will look familiar and you will probably be bored.

WHAT YOU WILL OWN

The data tier. Design and implement high availability for MongoDB: replication topology, migration paths that are reversible at every step, and backup and restore that is verified rather than assumed.

Tenant isolation. Design multi-tenant resource isolation so workloads stay predictable as customer count and data volume grow. Noisy-neighbor behavior is the failure mode we care about most.

Release integrity. Mature the deployment pipeline so releases are deterministic and auditable, and so what is running matches what was declared.

Observability that means something. Define the service-level indicators that reflect real customer experience, and build the measurement behind them. We are not looking for more dashboards.

Async and background processing. Architect the model for long-running, data-heavy operations.

Capacity. Right-size resources against measured usage, introduce autoscaling, and load test at realistic data volumes.

Cloud strategy. Give us your long-term view. We are on Azure and are not planning to migrate, but we want an architect's assessment to plan against.

WHAT WE NEED TO SEE

You have done stateful surgery in production. Reshaping storage, promoting a standalone database to a replicated one, or migrating a data tier with a rollback path at each step. This is the one thing we cannot backstop with review.

You have solved tenant isolation for real. Not "we used namespaces." You have hit a noisy-neighbor problem, diagnosed it, and have opinions about which mitigations actually held.

You debug by measurement. You instrument and observe rather than reason from intuition, and you have been wrong about a bottleneck before and can say so.

You can read Node.js well enough to reason about where memory and time go. You do not need to write it.

You will disagree with a proposed design and explain why. You will be the most experienced infrastructure person here, and deference would waste the engagement.

5+ years in platform engineering, SRE or cloud architecture, with real design ownership on at least one production system.

English sufficient for written technical discussion and calls.

THE STACK, FOR MATCHING

Kubernetes and Helm in production, MongoDB, Azure and AKS preferred (equivalent AWS or GCP depth is fine), Terraform, Prometheus, Grafana, Alertmanager, Loki, Node.js services.

Nice to have: GitOps (Argo CD or Flux), k6 or JMeter, exposure to blockchain infrastructure or carbon markets. The domain is genuinely optional, we will teach it.

HOW TO APPLY

Send your CV and answer one question. It matters more to us than the CV does.

Describe a time you changed the shape of a stateful workload in production. A storage migration, a topology change, a database promotion, anything where the data had to survive. What was your rollback at each step, and what did you check before you started?

Answers that describe the happy path tell us less than answers that describe what almost went wrong. We are not looking for a keyword list.

ABOUT CLIMISSION

Climission is a climate technology company on a mission to empower stakeholders across carbon markets and sustainable value chains with state-of-the-art tools and platforms, enabling a seamless transition to a more sustainable and transparent global ecosystem. Founded on the principles of innovation, transparency, and sustainability, Climission builds on the groundbreaking work of Envision Blockchain and the open-source Guardian platform. The company develops and operates a suite of products for the carbon economy, including a Managed Guardian Service (enterprise SaaS for carbon market operations), an AI Toolkit for climate data, and an Indexer for digital environmental assets, alongside its contributions to open-source infrastructure. Climission works with leading registries, enterprises, and international bodies to make the verification and tokenization of environmental assets trustworthy, scalable, and intelligent.

Company website: https://climission.com/

Main requirements

dbt, Google BigQuery, Python, SQL, Git

Requirements

Position name: Data Engineer (Mid-Level)

Level: Mid-Level

Hard skills requirements:

• Hands-on experience with dbt (models, tests, documentation)
• Experience with Google BigQuery
• Solid Python skills for data engineering
• Strong SQL and data modeling
• Production data pipeline experience
• Git and collaborative development workflows

Soft skills requirements:

• Strong English — written and verbal
• Cross-functional communication
• Ownership mindset — takes accountability end-to-end
• High motivation to learn and grow in a startup environment

Office/Remote: Remote — any location

Project tasks:

• Build and maintain ELT data pipelines for game and product data
• Develop, test, and document dbt models following analytics engineering best practices
• Work with Google BigQuery for analytics, optimization, and cost efficiency
• Write clean Python for data processing and automation
• Ensure data quality, reliability, and consistency across datasets
• Monitor pipelines, troubleshoot issues, take ownership of fixes end-to-end
• Contribute to data architecture decisions in a fast-paced startup environment

English level: Upper-Intermediate / Advanced

We are looking for an experienced Solution Architect with strong expertise in IoT. You will actively participate in presale activities, discovery phases and design and guide the implementation of end-to-end solutions that combine IoT data and cloud services. You will work closely with engineering teams, product managers, and business stakeholders to build architectures that are scalable, secure, and aligned with business goals.

Requirements:

• 7+ years in software engineering, including 3+ proven experience as a Solution Architect or senior technical lead in IoT-related projects
• Strong understanding of IoT ecosystems including hardware, firmware, connectivity options, and cloud platforms (AWS IoT, Azure IoT, GCP IoT alternatives)
• Hands-on experience with microservices, APIs, messaging systems, and event-driven architectures
• Familiarity with data ingestion, edge computing, and real-time analytics
• Solid understanding of security best practices for IoT (device identity, encryption, data protection)
• Proficiency in more than one programming languages (Python, .NET/C#, C/C++, Node.js)
• Experience with containerization and orchestration (Docker, Kubernetes) is a plus

Nice-to-Have Skills:

• Energy domain knowledge and experience
• Experience with digital twins, device management platforms, or industrial IoT systems
• Experience in monitoring or responsible AI practices
• Knowledge of embedded systems or hardware design
• Certifications (AWS/Azure/GCP Architect) are an advantage

Job responsibilities:

• Actively participate in the presale and discovery activities
• Collaborate with cross-functional teams to translate business needs into architectural requirements, constraints, and quality attributes
• Design and document distributed IoT solution architectures including devices, connectivity, cloud components, APIs, data pipelines, and integrations
• Lead technical decision-making and ensure architectural coherence across IoT initiatives
• Evaluate IoT technologies, frameworks, and standards (e.g., MQTT, DNP3, OPC, Azure/AWS IoT, vector databases, agentic frameworks)
• Define NFRs, ensure high standards of security, reliability, performance, and data governance across workloads
• Guide development teams through implementation and provide architectural oversight throughout the project lifecycle
• Produce architecture diagrams, documentation, and technical guidelines

Phoenix Games is an innovative technology company building next-generation iGaming and Web3 products for a global audience. We combine AI, blockchain, and cloud technologies to create engaging gaming experiences that redefine digital entertainment.

We're looking for a Business Analyst / Product Owner who can bridge business needs and product development. You'll work closely with stakeholders, designers, and engineering teams to transform ideas into successful product features while ensuring maximum business value.

What You'll Do

• Gather, analyze, and document business and product requirements.
• Translate business needs into clear user stories, acceptance criteria, and functional specifications.
• Own and prioritize the product backlog based on business goals and customer needs.
• Work closely with Developers, QA Engineers, Designers, and stakeholders throughout the product lifecycle.
• Participate in product discovery, feature planning, and roadmap development.
• Analyze user feedback, business metrics, and market trends to improve product performance.
• Facilitate backlog refinement, sprint planning, and other Agile ceremonies.
• Ensure delivered features meet business objectives and quality standards.
• Identify opportunities for process optimization and product improvements.
• Support product releases and help define future product strategy.

Requirements

• 3+ years of experience as a Business Analyst, Product Owner, or similar role.
• Strong experience gathering and documenting business requirements.
• Experience writing user stories, use cases, process flows, and acceptance criteria.
• Solid understanding of Agile/Scrum methodologies.
• Experience managing and prioritizing product backlogs.
• Strong analytical thinking and problem-solving skills.
• Excellent communication and stakeholder management abilities.
• Ability to work effectively with cross-functional teams.
• Upper-Intermediate English or higher.

Nice to Have

• Experience with Jira, Confluence, or similar collaboration tools.
• Knowledge of UX principles and user-centered design.
• Experience working with analytics platforms such as GA4, Amplitude, or Mixpanel.
• Understanding of AI-powered products and modern digital platforms.

What We Offer

• Fully remote work from anywhere in Europe.
• Long-term B2B cooperation.
• Competitive salary paid in EUR or USD.
• Annual salary reviews.
• Performance-based bonus program.
• Annual company bonus.
• 25 paid vacation days.
• Paid sick leave.
• Flexible working hours.
• Home office budget.
• Laptop or equipment allowance.
• Learning & development budget for courses, certifications, books, and conferences.
• English language lessons.
• Private health insurance.
• Mental health support program.
• Sports and wellness compensation.
• Team-building activities and international company retreats.
• Opportunity to work on innovative AI, Web3, and gaming products with a global audience.
• Real influence on product strategy and business decisions.
• Career growth in a fast-growing international product company.

Why Join Phoenix Games?

At Phoenix Games, you'll play a key role in connecting business goals with product execution. Your ideas will directly influence the development of innovative products used by players around the world, while working alongside an experienced international team that values ownership, collaboration, and continuous improvement.

Phoenix Games is an innovative technology company building next-generation iGaming and Web3 products for a global audience. We develop scalable backend systems powered by AI, blockchain, cloud technologies, and modern software architecture.

We're looking for Middle and Senior Backend Developers with strong experience in Python, Ruby, or PHP to help build reliable, secure, and high-performance backend services for our rapidly growing platform.

What You'll Do

• Design, develop, and maintain scalable backend services and APIs.
• Build high-performance microservices and distributed systems.
• Develop secure RESTful APIs and real-time backend functionality.
• Optimize application performance, scalability, and reliability.
• Design and improve database architecture and query performance.
• Integrate third-party services, payment providers, and cloud solutions.
• Collaborate closely with Frontend Developers, Product Managers, QA Engineers, and DevOps.
• Participate in architecture discussions, code reviews, and technical planning.
• Write clean, maintainable, and well-tested code.

Requirements

Middle

• 3+ years of commercial backend development experience.
• Strong knowledge of Python, Ruby, or PHP.
• Experience with at least one modern backend framework.
• Experience designing and consuming REST APIs.
• Good knowledge of relational databases.
• Understanding of OOP, SOLID principles, and clean architecture.
• Experience with Git.
• Upper-Intermediate English or higher.

Senior

• 5+ years of commercial backend development experience.
• Deep expertise in Python, Ruby, or PHP.
• Experience building scalable, high-load backend systems.
• Strong understanding of microservices and distributed architecture.
• Experience working with cloud platforms and containerized environments.
• Knowledge of caching strategies, asynchronous processing, and message queues.
• Ability to mentor engineers and contribute to architectural decisions.
• Strong focus on performance, security, and maintainability.
• Upper-Intermediate English or higher.

Nice to Have

• Experience with CI/CD pipelines.
• Familiarity with WebSockets or real-time systems.
• Knowledge of Web3, blockchain, or crypto-related technologies.
• Experience working in product companies.

What We Offer

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

Why Join Phoenix Games?

At Phoenix Games, you'll build modern backend systems that power innovative gaming products for a global audience. We value clean code, ownership, collaboration, and continuous learning. Whether your expertise is in Python, Ruby, or PHP, you'll have the opportunity to solve challenging engineering problems, work on impactful products, and grow with an ambitious international team.

⚠️ MANDATORY: YOU MUST CURRENTLY BE LIVING IN CYPRUS OR BE READY TO RELOCATE TO CYPRUS.

⚠️ COLD OUTBOUND SALES EXPERIENCE IS REQUIRED.

DID Global is an international company providing premium IP telephony solutions for businesses around the world. We help companies improve communication, reduce costs, and grow faster.

We're looking for a proactive Sales Manager who enjoys communicating with people, finding new business opportunities, and building long-term partnerships. If you have experience in cold outbound sales and want to work with international clients in a fast-growing company, we'd love to meet you.

What you'll do:

• Find new B2B clients through LinkedIn, Telegram, partner communities, forums, and other outbound channels.
• Build and manage your own sales pipeline.
• Conduct cold outreach to potential clients.
• Communicate with international clients via LinkedIn, email, Telegram, and other messengers. Calls and online meetings are also part of the job when needed.
• Understand client needs and offer the right VoIP solutions.
• Prepare commercial offers, negotiate, and close deals.
• Keep CRM updated and achieve sales goals.

We'd love to meet you if you have:

• You currently live in Cyprus or are ready to relocate there.
• 2+ years of experience in cold B2B sales.
• Experience in the VoIP or telecom industry is a strong advantage.
• English at B2+ level for communication with international clients (written and spoken).
• Fluent Ukrainian.
• Proven experience with outbound prospecting and lead generation.
• Strong communication and negotiation skills.
• Experience working with CRM systems.
• Self-motivation, responsibility, and a results-driven mindset.

What we offer:

• Fully remote work from Cyprus.
• Monday–Friday, 10:00–19:00 (Kyiv time).
• Official or unofficial employment.
• Medical insurance.
• Corporate psychologist.
• Company-paid English classes.
• Paid vacation.
• Career growth opportunities in an international company.
• Friendly team, open communication, and support from colleagues.

Why people enjoy working with us

• No micromanagement — we trust our team.
• No time trackers or screen monitoring.
• We focus on results, not on controlling every step.
• Freedom to organize your work and try your own ideas.
• Daily communication with international clients and real opportunities for professional growth.
• A friendly atmosphere where people support each other and enjoy working together.

If you're looking for a company where you can grow, work with international markets, and be valued for your results, we'd be happy to hear from you.

Senior DevOps Engineer (Remote)

Masons Group — міжнародна digital-команда, що розвиває власні технологічні продукти та інфраструктуру для high-load систем і роботи з глобальним трафіком.

Шукаємо Senior DevOps Engineer, який допоможе масштабувати інфраструктуру та забезпечувати стабільну роботу платформи під високі навантаження.
 

Формат роботи

• Remote
 

Обов’язки:

• Проєктування та розвиток fault-tolerant інфраструктури в Kubernetes (GKE)
• Масштабування системи: autoscaling, load balancing, resource optimization
• Робота з мікросервісною архітектурою та мережевими взаємодіями
• Налаштування та оптимізація CDN (Cloudflare / CloudFront) для глобальної доставки PWA
• Побудова observability системи: Prometheus, Grafana, logging, tracing, SLO/SLI alerts
• Забезпечення безпеки інфраструктури (IAM, secrets management, DDoS protection, audit)
• Робота з CockroachDB / PostgreSQL: replication, sharding, backups, migrations
• Розвиток та підтримка CI/CD pipeline (GitHub Actions / GitLab CI)
• Автоматизація інфраструктури через Terraform / Ansible
• Використання Temporal для orchestration distributed workflows
• Участь в архітектурних рішеннях та технічній стратегії
• Менторинг junior/middle engineers
 

Tech Stack:

• Linux (Ubuntu), Bash
• Docker, Kubernetes (GKE)
• Nginx, Cloudflare, AWS CloudFront
• CockroachDB / PostgreSQL
• Prometheus, Grafana, Loki, Tempo
• Terraform, Ansible
• GitHub Actions / GitLab CI
• Temporal
• Google Cloud Platform (GKE, IAM, VPC, Cloud Storage)
• AWS / Azure — буде плюсом
 

Вимоги:

• 5+ років комерційного досвіду
• 3+ роки в ролі DevOps / SRE
• Досвід роботи з high-load системами
• Глибока експертиза в Docker та Kubernetes (production clusters, Helm, security, networking)
• Сильне розуміння TCP/IP, DNS, HTTP/2, gRPC, load balancing
• Практичний досвід роботи з GCP (GKE, IAM, VPC)
• Досвід побудови CI/CD та Infrastructure as Code
• Досвід роботи з Temporal або аналогами
• Досвід адміністрування БД та observability systems
 

Буде плюсом:
• CockroachDB у distributed clusters
• Service Mesh (Istio / Linkerd)
• GitOps (ArgoCD / Flux)
• Go / Python
• Сертифікації CKA / CKAD / GCP DevOps
• Досвід роботи з глобальними GEO
• Кейси масштабування та оптимізації інфраструктури з конкретними метриками
 

Що ми очікуємо:

• Системне мислення та вміння проєктувати архітектуру під ріст навантаження
• Проактивність та ownership mindset
• Досвід роботи з critical incidents (DDoS, outages, degradation)
• Вміння аргументовано пояснювати технічні рішення

Ми пропонуємо

• Competitive salary
• Вплив на архітектуру та технічні рішення
• Роботу зі складною high-load інфраструктурою
• Віддалений формат роботи
 

Додатково:

Перед фінальним працевлаштуванням кандидати проходять поліграф, відповідно до внутрішніх процедур безпеки компанії.

Join a team building a large-scale marketplace platform used by millions of customers worldwide. We are looking for a .NET Developer with strong expertise in distributed systems, cloud-native technologies, and event-driven architecture to help evolve a modern E-commerce ecosystem.

Customer

Our Customer is an industry-leading marketplace specializing in pet products, with a strong online presence and a massive product catalog. The company focuses on delivering seamless digital shopping experiences through scalable technology solutions and reliable operational systems supporting millions of users and transactions.

Project

The project focuses on the development and optimization of a high-performance marketplace platform designed to enhance the online shopping experience. The team is responsible for core systems managing catalogs, pricing, inventory, suppliers, and related operational services.

The platform is built as a large-scale distributed ecosystem leveraging event-driven architecture, cloud-native infrastructure, and multiple data storage technologies to ensure scalability, low latency, and fault tolerance across substantial data volumes.

Responsibilities

• Design, develop, and maintain robust backend solutions using the .NET Framework (4.8)
• Take full ownership of features throughout the entire lifecycle - from requirements breakdown to production deployment
• Write clean, maintainable, and well-tested code following best engineering practices
• Maintain, optimize, and troubleshoot messaging and service-oriented architectures built with MSMQ and WCF
• Design, optimize, and maintain complex queries and database structures in SQL Server
• Implement and manage distributed caching strategies using NCache to ensure high availability and low latency
• Collaborate closely with cross-functional teams 

Requirements

• 4+ years of software development experience with strong OOP, system design, and architectural skills
• Solid knowledge of .NET Framework 4.8 and C#
• Hands-on experience with MSMQ and WCF
• Solid knowledge of SQL Server (experience with relational database design, query optimization, indexing, and T-SQL)
• Proven experience with NCache or similar distributed caching solutions
• Understanding of modern testing principles (unit, integration, and performance testing)
• Familiarity with non-functional system requirements (performance tuning, security, scalability, and high availability)
• Upper-Intermediate English level or higher

Phoenix Games is an innovative technology company building next-generation iGaming and Web3 products for a global audience. By combining AI, blockchain, cloud technologies, and advanced analytics, we create engaging digital experiences powered by data.

We're looking for a Data Analyst who is passionate about transforming data into actionable insights and helping shape product strategy through analytics.

What You'll Do

• Analyze product, marketing, and business data to identify trends, opportunities, and risks.
• Build and maintain dashboards, reports, and KPIs using modern BI tools.
• Monitor player behavior, retention, engagement, and monetization metrics.
• Perform ad hoc analysis to support product and business decisions.
• Design and analyze A/B tests and feature experiments.
• Work closely with Product Managers, Marketing, Finance, and Engineering teams.
• Validate data quality and investigate anomalies.
• Automate recurring reports and improve reporting processes.
• Present insights and recommendations to stakeholders in a clear and actionable way.

Tech Stack

• SQL
• Python (Pandas, NumPy)
• Power BI / Tableau / Looker
• PostgreSQL
• BigQuery / Snowflake (nice to have)
• Google Analytics 4
• Amplitude / Mixpanel
• Excel / Google Sheets
• Git (nice to have)

Requirements

• 2+ years of experience as a Data Analyst, Product Analyst, or Business Analyst.
• Strong SQL skills and experience working with relational databases.
• Experience with BI and data visualization tools.
• Understanding of statistics and A/B testing methodologies.
• Strong analytical thinking and attention to detail.
• Ability to communicate complex findings in a simple and business-friendly way.
• Experience working with large datasets.
• Upper-Intermediate English or higher.

Nice to Have

• Experience in Gaming, FinTech, SaaS, or E-commerce.
• Experience with product analytics platforms (Amplitude, Mixpanel, GA4).
• Python for data analysis and automation.
• Knowledge of predictive analytics.
• Familiarity with blockchain or Web3 products.

What We Offer

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

Why Join Phoenix Games?

At Phoenix Games, data is at the heart of every product decision. You'll have the opportunity to work with modern technologies, influence business strategy, and help build products used by a global audience while collaborating with an international team of talented professionals.

Phoenix Games is a technology company building next-generation iGaming and Web3 products for a global audience. We leverage AI, cloud technologies, blockchain, and advanced analytics to create intelligent, data-driven gaming experiences.

As we continue to scale, we're looking for Data Engineer / Data Scientist to help us build modern data infrastructure, develop machine learning solutions, and turn massive volumes of data into actionable insights.

What You'll Do

• Design, build, and maintain scalable data pipelines and ETL/ELT processes.
• Develop and optimize data warehouses and data lake architectures.
• Collect, clean, and transform large datasets from multiple sources.
• Build predictive models, recommendation systems, and analytical solutions.
• Apply machine learning techniques to improve player engagement, fraud detection, personalization, and business intelligence.
• Design dashboards and reporting solutions for business stakeholders.
• Collaborate with Product Managers, Engineers, and BI teams to define data-driven strategies.
• Optimize data processing performance and ensure data quality.
• Implement monitoring, validation, and governance for data pipelines.
• Research and evaluate new AI and machine learning technologies.

Tech Stack

• Python
• SQL
• PostgreSQL
• Snowflake / BigQuery / Redshift
• Apache Airflow
• Spark
• Pandas
• NumPy
• Scikit-learn
• TensorFlow / PyTorch
• MLflow
• Docker
• Kubernetes
• AWS / Azure / GCP
• Git
• Power BI / Looker / Tableau

Requirements

• 2+ years of commercial experience in Data Engineering, Data Science, or Machine Learning.
• Strong Python programming skills.
• Advanced SQL knowledge.
• Experience building scalable data pipelines.
• Experience with cloud data platforms.
• Strong understanding of data modeling and database design.
• Experience with machine learning algorithms and model evaluation.
• Experience working with large datasets.
• Familiarity with Docker and cloud environments.
• Strong analytical and problem-solving skills.
• Upper-Intermediate English or higher.

Nice to Have

• Experience with LLMs, Generative AI, or AI agents.
• Knowledge of real-time data streaming (Kafka, RabbitMQ).
• Experience with feature engineering and MLOps.
• Experience with fraud detection or recommendation systems.
• Familiarity with blockchain analytics or Web3 ecosystems.

What We Offer

• Fully remote work from anywhere in Europe.
• Long-term B2B cooperation.
• Competitive salary paid in EUR or USD.
• Annual salary reviews.
• Performance-based bonus program.
• Annual company bonus.
• 25 paid vacation days.
• Paid sick leave.
• Flexible working hours.
• Home office budget.
• Laptop or equipment allowance.
• Learning & development budget for courses, certifications, conferences, and books.
• English language lessons.
• Private health insurance.
• Mental health support program.
• Sports and wellness compensation.
• Team-building activities and international company retreats.
• Opportunity to work on AI, Web3, blockchain, and large-scale data platforms.
• Clear career growth opportunities within a rapidly expanding international product company.

Why Join Phoenix Games?

At Phoenix Games, data is at the core of every product decision. You'll work with modern technologies, solve complex data challenges, and help build intelligent systems that power the next generation of online gaming.

If you're passionate about data engineering, machine learning, and creating impactful AI-driven solutions, we'd love to hear from you.

Numerical Technologies LTD is a provider of custom software solutions and services specializing in risk, limits, and regulatory capital. We are currently looking for a Senior Python Developer to join our team. 

Project: Portfolio management systems for a US financial institution. 

What you will be doing:  

As part of the team, you will be participating in a client project focused on portfolio management solutions. You will help develop new software features, as well as support and maintain existing ones. You will be writing scalable and fault-tolerant code, debugging programs, and integrating applications with third-party web services. You will be collaborating closely with the client and product manager to understand the system’s functional and non-functional requirements, and contribute to code quality through unit testing, integration testing, code review, and system design using Python to build robust software that aligns with the client’s business needs. 

What we are looking for:  

• A strong programming background with Python and OOP skills.
• Deep understanding of algorithms and data structures.
• Experience building backend systems and working with REST APIs.
• Proficiency with SQL databases.
• Experience with FastAPI and Linux environments.
• Strong problem-solving skills and ability to collaborate effectively in a team environment.
• Upper-Intermediate level of English or above. 
• Experience with React and AWS is a plus. 

What we offer: 

• Competitive compensation depending on experience and skills. 
• Regular assessments and salary reviews. 
• Paid personal days. 
• Mental health support program. 
• Language classes. 
• Flexible working schedule.

About project

We are a Barcelona-based R&D center seeking Vulnerability Researchers/Security Researchers to join our team. The role focuses on hands-on vulnerability research, including finding and exploiting vulnerabilities in complex systems such as browsers, kernels, mobile and desktop operating systems. We offer full-time remote work as well as relocation opportunities to Barcelona. Flexible working hours are supported depending on productivity and time zones.

Your area of responsibility

• Detect, analyze, and exploit vulnerabilities;
• Conduct vulnerability research across browsers, kernels, mobile and desktop operating systems, and other complex software;
• Understand the technical details of vulnerabilities and assess their real impact;
• Develop exploits, proof-of-concept code, scripts, and software modules to validate vulnerabilities;
• Perform reverse engineering and binary analysis as part of vulnerability research;
• Reverse-engineer security patches to better understand vulnerabilities;
• Use fuzzing and other research techniques to discover vulnerabilities;
• Effectively communicate vulnerability findings and their technical impact;
• Assist in the development of tools for vulnerability and security research.

Skills and requirements

• Proven hands-on experience in vulnerability research and vulnerability exploitation;
• Experience in exploit development;
• Experience in finding vulnerabilities in complex systems;
• Experience with reverse engineering;
• Knowledge of OS internals;
• Knowledge of modern exploitation techniques;
• Experience researching at least one of the following areas: browsers, kernels, mobile OSes, desktop OSes, or embedded systems;
• Experience with platforms such as Windows, Linux, macOS, iOS, or Android;
• Ability to work independently in a remote environment;
• Availability for full-time work.

Will be a plus

• Published CVEs or other proven records of discovered vulnerabilities;
• Experience finding and exploiting vulnerabilities in browsers or OS kernels;
• Experience with fuzzing;
• Participation in CTFs, security competitions, or security conferences;
• Bug bounty or independent vulnerability research experience;
• Published security research, technical write-ups, PoCs, or research tools;
• Offensive security background;
• Academic degree in Computer Science, Mathematics, or Physics.

We offer

• A real opportunity to influence the product, architecture, and technical decisions;
• Direct communication with C-level management, without unnecessary bureaucracy;
• Remote-first environment;
• Long-term and enjoyable cooperation;
• 20 paid working days of vacation per year;
• 5 paid undocumented sick days;
• Official public holidays as days off;
• Personal legal support;
• English classes;
• Team-building events and a friendly, supportive atmosphere.

Rozmova/Clearly is a mental health marketplace with a strong B2C core.

We have built a solid business across Ukraine, Poland, and Spain, with Spain currently being our priority and fastest-growing market.

At the same time, we are not just scaling what already works. We are always rethinking how this category should evolve — combining marketplace dynamics, product innovation, and AI to build a scalable and sustainable mental health ecosystem.

Our focus now:

• strengthening unit economics in core markets
• scaling Spain and selected new markets
• testing new growth approaches and revenue models
• building competitive advantage through product and technology

This is a business-critical role responsible for unlocking Clearly's next stage of growth — primarily through product, technology, and new business models, and then through marketing and other channels.

This is a new role for Clearly. We are looking for someone who specializes in exactly this field with deep growth experience and a genuine growth mindset.

KEY RESPONSIBILITIES

Growth Strategy & New Growth Directions

• Own and continuously refine Clearly's growth strategy, with a focus on new client and new product acquisition
• Identify and validate new revenue streams, business models, and growth directions
• Define how the business scales, primarily through product innovation, technology, and marketplace mechanics, and then through marketing and other levers
• Own unit economics (CAC, LTV, payback) for new launches, new growth instruments, and experiments
• Maintain a clear view of forecasting and ROI across growth initiatives Product, Tech & AI as Primary Growth Levers
• Work closely with Product and Tech to identify and unlock growth opportunities within the product
• Translate product and technology capabilities into concrete growth hypotheses and experiments
• Drive initiatives around personalization, matching quality, retention loops, and engagement
• Identify where AI can unlock meaningful improvements in acquisition, retention, or monetization
• Ensure new features and innovations have clear business impact
• Leverage product and tech advantages to support expansion into new markets (in close collaboration with the Expansion team) Business Model Innovation
• Explore and test new business models that can drive growth beyond the current marketplace structure
• Evaluate pricing, packaging, and monetization strategies as growth levers
• Design experiments to validate new models before scaling them
• Own P&L tracking for new business models and growth experiments Experimentation & Growth Loops
• Build a culture of structured experimentation across product, channels, and business models
• Design and run A/B tests across acquisition, product, pricing, and retention
• Identify and scale growth loops (referrals, reactivation, supply-side improvements)
• Develop a deep understanding of funnel performance, attribution, and cohort behavior Cross-Functional Alignment
• Align Product, Tech, Marketing, and Supply teams around shared growth priorities during growth stages
• Build strong feedback loops between customer insights, product decisions, and growth strategy
• Ensure consistent execution across teams
• Turn strategy into fast, structured execution, without duplicating responsibilities of existing team leads Team & Leadership
• Build and lead a high-performing growth team (analysts, marketers, growth engineers, ops)
• Hire and develop strong operators with both analytical and strategic thinking
• Set clear priorities and maintain high execution standards
• Foster a culture of ownership, speed, and accountability

REQUIREMENTS

• 5+ years in growth, strategy, or general management roles in marketplaces, SaaS, or similar environments
• Proven track record of scaling B2C businesses with ownership over results
• Strong understanding of product-led growth and how technology can drive acquisition and retention
• Experience designing and validating new growth directions or business models
• Experience working with unit economics (CAC, LTV, payback) in the context of new launches and experimentation
• Experience working closely with product and engineering teams

Analytics & Thinking

• Strong analytical mindset with hands-on experience in funnel analysis, cohorts, and experimentation
• Ability to turn data into decisions and prioritize effectively
• Experience with tools like GA4, Mixpanel, Looker, or similar (SQL is a plus)

Mindset & Execution

• Founder-level ownership and ability to operate in ambiguity
• Strong cross-functional leadership skills
• Fast decision-making and structured thinking
• Comfortable challenging assumptions and proposing new approaches
• Focused on outcomes, not activity
• Genuine interest in mental health and building meaningful products

Language

• English: C1+
• Spanish is a strong plus

WHAT WE OFFER

• Competitive compensation with performance-based bonuses
• Equity or long-term incentive aligned with company growth
• Direct work with founders and fast decision-making cycles
• High-impact role with real ownership
• Remote-first setup with flexibility
• Opportunity to build a category-defining mental health platform

We are looking for a security-first Cloud DevSecOps Engineer to design, automate, and protect our multi-cloud infrastructure across AWS and Azure. In this role, you won’t just build pipelines—you will bake security directly into them. You will work closely with our development and engineering teams to enforce a “Shift Left” culture, ensuring that automation, scalability, and airtight cloud compliance go hand-in-hand.

Requirements:

• 3+ years of hands-on experience in Cloud DevOps/DevSecOps, managing production environments across AWS and Azure.
• Strong experience designing and securing CI/CD pipelines (GitHub Actions, Azure DevOps, GitLab CI).
• Advanced knowledge of Infrastructure as Code using Terraform (CloudFormation or Bicep is a plus).
• Experience implementing Policy-as-Code and IaC security scanning using tools such as Checkov, Tfsec, OPA/Rego.
• Practical experience integrating security controls into the SDLC, including SAST, DAST, SCA, secret detection, and container image scanning.
• Hands-on experience with Kubernetes (EKS/AKS), Docker, container security, and workload hardening.
• Experience with cloud-native security services across AWS and Azure.
• Strong understanding of IAM, RBAC, Zero Trust, and enterprise secrets management (HashiCorp Vault, Azure Key Vault).
• Experience implementing and integrating security platforms such as SonarQube, Prisma Cloud, Wiz, Snyk, CrowdStrike, Microsoft Sentinel, or similar.
• Experience configuring centralized logging and telemetry pipelines for SIEM solutions.
• Practical knowledge of cloud security, vulnerability management, encryption, compliance frameworks (SOC2, ISO 27001, CIS), and secure software delivery.
• Proficiency in scripting (Python, Bash, or PowerShell).

Responsibilities

• Design, build, and maintain secure CI/CD pipelines, embedding security throughout the software delivery lifecycle.
• Automate cloud infrastructure provisioning across AWS and Azure using Terraform.
• Implement and maintain Policy-as-Code guardrails to prevent infrastructure misconfigurations before deployment.
• Integrate automated SAST, DAST, SCA, secret detection, vulnerability scanning, and container scanning into engineering workflows.
• Deploy and automate security tooling, including EDR agents, vulnerability scanners, monitoring agents, and security baselines across cloud workloads.
• Configure and automate application, infrastructure, and container log collection for centralized SIEM platforms.
• Build automated vulnerability remediation workflows, integrating findings into engineering backlogs (e.g., Jira).
• Implement and maintain Zero Trust access controls, IAM governance, RBAC, and enterprise secrets management.
• Secure Kubernetes platforms (EKS/AKS), container runtimes, and cloud-native workloads.
• Collaborate with Security, Engineering, and Platform teams to promote secure-by-default infrastructure and developer enablement.
• Develop reusable secure Terraform modules, Helm charts, and deployment templates.
• Continuously improve cloud compliance, security posture, and operational resilience across AWS and Azure environments.

Preferred certifications:

• AWS Certified Security — Specialty
• AWS Certified DevOps Engineer — Professional
• Microsoft Certified: Azure Security Engineer Associate (AZ-500)
• Certified DevSecOps Professional (CDP) or Practical DevSecOps
• Certified Kubernetes Administrator (CKA)
• Certified Kubernetes Security Specialist (CKS)
• HashiCorp Terraform Associate (nice to have)