Jobs at Djinni

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 looking for a Platform Engineer to drive critical infrastructure initiatives across our backend systems, with primary ownership of our core platform.
This is a high-impact role where you'll architect scalable solutions that serve our entire engineering organization - core platform services that power our AI editing capabilities.
You'll have the opportunity to shape technical decisions across multiple domains while ensuring our platform systems are robust, reliable, and optimized for growth.

Key Requirements:
🔹 5+ years of experience as a Backend Engineer, with experience building platform services or shared infrastructure;
🔹 B.Sc in Computer Science, Software Engineering, or a related field from a well-known university;
🔹 Proven expertise in backend server development, using languages like Python, Scala, Go, or Java;
🔹 Solid understanding of system design principles, API architecture, and service-oriented architectures;
🔹 Proficiency with AWS services and cloud-based architectures;
🔹 Excellent communication skills for collaborating across engineering, product, and operations teams;
🔹 Proactive mindset, having the will and ability to find areas where optimizations can benefit the entire org;
🔹 English – Upper-Intermediate or higher.

What you will do:
🔹 Drive platform-level initiatives that improve scalability, reliability, and developer experience across our backend systems;
🔹 Collaborate with multiple departments to support new platform features and technical initiatives;
🔹 Monitor platform health, investigating and resolving incidents and reliability issues;
🔹 Develop and optimize shared platform services, APIs, and infrastructure used across engineering teams;
🔹 Create internal tools and frameworks that improve developer productivity and system reliability;
🔹 Drive initiatives to improve observability, monitoring, and operational excellence across our infrastructure;

Interview stages:
🔹 HR Interview;
🔹 Tech interview;
🔹 Client Interviews;
🔹 Reference check;
🔹 Offer;

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 fast-growing startup focused on modernizing the way companies manage procurement and purchasing. They help organizations streamline procurement workflows, vendor management, and internal processes, allowing them to move faster, control spending, and gain better visibility. The company is small, fast-moving, and highly customer-focused. They work closely with their customers and move quickly from feedback to product improvements. Their platform is highly configurable and integrates with systems such as ERPs, CLMs, and collaboration tools.

Key Requirements:
🔹 You have solid 10+ years of experience building and operating production backend systems;
🔹 You are strong at debugging and refactoring across services, logs, and data and strive for;
🔹 Precise understanding, not hand wavy guesses;
🔹 AWS, with a heavy use of managed and serverless services;
🔹 TypeScript and Node for backend services;
🔹 Aurora Postgres;
🔹 Python for some services and data related work;
🔹 Integrations with third party APIs, ERPs, CLMs, and collaboration tools;
🔹 And flows rather than only individual endpoints;
🔹 You have taken ownership of technically challenging and evolving projects before and are;
🔹 Comfortable working through ambiguity;
🔹 You communicate clearly in writing and in conversation and are comfortable pushing back;
🔹 Asking questions, and exposing risks early;
🔹 You are good at using documentation, experimentation, and AI tools to unblock yourself and;
🔹 Accelerate your work, while still owning correctness and quality;
🔹 You care about leaving codebases and systems in a better state than you found them and;
🔹 Think about maintainability by default;
🔹 Priori experience working at a US based company is a nice to have;
🔹 English – Upper-Intermediate or higher.

Will be plus:
🔹 You can clearly communicate and debate complex problems and proposed solutions;
🔹 You have a broad engineering mindset and enjoy understanding systems end to end;
🔹 You are comfortable taking ownership of technically challenging, evolving projects, not just;
🔹 Well scoped tickets;
🔹 It is very important to us that you are independent: you know how to ask questions, ask for;
🔹 Help, and own your features start to finish;

What you will do:
🔹 Own features end to end and drive them from discovery through design, implementation;
🔹 Rollout, and follow up;
🔹 Work independently while collaborating smartly by unblocking yourself and asking questions;
🔹 Analyze and decompose complex work into clear, incremental steps without losing important;
🔹 Edge cases;
🔹 Communicate and debate solutions by explaining complex topics simply and leading;
🔹 Productive design discussions;
🔹 Identify and articulate tradeoffs across performance, reliability, complexity, and delivery;
🔹 Speed to guide decisions;
🔹 Design and implement backend services including APIs, background jobs, and data flows;
🔹 Across multiple domains and systems;

Interview stages:
🔹 1. Technical Interview(s) with Team Engineers;
🔹 2. Non-Technical Interview with the CTO;


Availability & Collaboration Hours

To ensure seamless collaboration across time zones, everyone is expected to be available for meetings and collaborative work for 4 hours each day, from 10:00 AM to 2:00 PM Eastern Time (ET). This is a mandatory shared availability window for all team members, regardless of their location.

Hello guys 👋

At Intobi, we're a software and product development company passionate about driving innovation and progress.

We help our clients succeed by delivering custom-built tech solutions designed to meet their unique needs.

Our expertise lies in developing cutting-edge Web and Mobile applications.

We’re looking for a success-driven Senior Full-Stack .NET Developer for one of our clients.

Full-Time, Long-Term position, work from the office or remote.

About the project:
This is an app for dental clinics. A team of developers, designers, DevOps specialists, and testers is working on the project.

Technical requirements:

— .NET Core, .NET 8 or later - 5+ years of experience;

— Angular 18 or later - 2+ years of experience or any other SPA frameworks like React or Vue - 5+ years of experience;

— Entity Framework Core - code first and database first approaches, understanding how EF and LINQ works under the hood;

— Experience working with MySQL or any other RDBMS;

— Distributed caching, distributed locks, Redis;

— Microservices, distributed system architecture design, scaling up vs scaling out;

— Deploying to AWS EBS and AWS ECS, experience writing CI/CD pipelines in YAML;

— Experience setting up metrics and telemetry, using OpenTelemetry, Grafana, Sentry or other monitoring tools;

— Writing integrations with API of 3rd party SaaS platforms (Xero, Quickbooks, Twilio, Stripe or others);

— Knowledge of possible security threats in web development, supply-chain attacks on developers;

— Knowing what CORS is, how it works, and how to configure CORS correctly with dynamic list of allowed domains;

— Containers, writing dockerfile, writing bash scripts;

— Knowing all of that without AI assistance;

— Being capable googling staff yourself.

Would be a plus:

— Writing integration with Xero or Quickbooks in particular;

— Creating custom nuget packages and distributing them through private nuget feeds;

— No fear using "git rebase --interactice" and solving merge conflicts;

— Experience setting up IAM system (like Keycloak) and using it for user authentication and machine-to-machine authentication;

— Writing n8n or Zappier workflows to automate routine tasks;

— Knowing and using 3rd party tools to enchance development workflow: Code Rabbit, SonarQube and others;

— Knowing how to configure AI to be most productive, and how to share this configuration with team.

What we offer:

— Competitive salary;

— Paid vacation and sick leaves;

— 8 hours a working day, 5 days a week;

— Career growth potential;

— Friendly team and corporate events.

Please send your CV here or via email.

Should the first stage be successfully completed, you’ll be invited to a personal interview.

Job Description

Primary Skills:

5+ years of professional software engineering experience with a strong emphasis on scalable frontend architectures.

Proven proficiency in utilizing AI-assisted coworker tools (Claude preferred) to accelerate frontend development to improve engineering productivity, code quality, testing, and development velocity.
Mastery of modern frontend technologies: React, GraphQL, Redux, Vite, TypeScript, HTML5, and CSS3 (Nice to have)
Solid mastery of Testing frameworks (Playwright, Jest, Vitet, Cypress)
Solid understanding of backend integration points, particularly interacting with GraphQL, REST APIs, and authentication flows.
Experience with observability platforms and UI performance optimization techniques.
Data Access: Proficiency with Entity Framework for ORM.
API Documentation: Experience using Swashbuckle to generate and maintain Swagger documentation.

Preferred, Not Required Skills
Version Control: Proficiency with Git and GitLab.
Collaboration: Experience working with Jira and Confluence.

Job Responsibilities

Partner closely with Product, Design, and Backend Engineering teams to translate complex business requirements into intuitive user experiences.
Provide dashboards, charts, and filtered views for sensor telemetry and alert trends to support end-to-end solution monitoring.
Develop detailed topology visualization and cross-org super-admin dashboards.
Unify gateway management and sensor data experiences so customers can move between fleet operations and troubleshooting in a single workflow.
Utilize AI-assisted coworker tools to rapidly generate React components, GraphQL queries, and unit tests.

Cloud Backend Engineer - Azure IoT Hub / Disaster Recovery

About the Project

We’re looking for a Cloud Backend Engineer to join an enterprise IoT platform initiative focused on infrastructure resilience, UI acceleration, and edge management.

The existing IoT platform currently has several areas being improved:

• Azure IoT Hub disaster recovery and device state protection
• Frontend delivery capacity
• Enterprise-grade OTA management for remote edge devices

This role is specifically focused on the Azure IoT Hub Disaster Recovery stream.

Your Role

You will be responsible for designing, implementing, and validating an automated disaster recovery mechanism for Azure IoT Hub.

The main objective is to ensure that device registry information and device twin state are continuously backed up and can be fully restored when required.

A successful end-to-end restoration in a development environment is a mandatory project acceptance criterion.

Responsibilities

• Design and implement automated, continuous backups of the Azure IoT Hub Device Registry
• Implement continuous backup of Device Twins / Twin State
• Securely store backup data in Azure Blob Storage
• Develop and maintain automation for the disaster recovery and restoration process
• Create clear, operational Disaster Recovery and restoration runbooks
• Execute complete device state restoration in a development environment
• Test and validate the end-to-end recovery process
• Verify that restored device registry and twin state data is complete and operational
• Work closely with DevOps, Backend, and IoT Platform engineers

What We’re Looking For

• Strong hands-on experience with Microsoft Azure
• Practical experience with Azure IoT Hub
• Experience working with Device Registry and/or Device Twins / Twin State
• Experience with Disaster Recovery, Backup & Restore processes
• Experience with Azure Blob Storage
• Strong automation/scripting skills, ideally with Python and/or PowerShell
• Ability to independently implement and validate cloud recovery automation
• Experience creating operational documentation and recovery runbooks
• Good English communication skills

Nice to Have

• Experience with large-scale or enterprise IoT platforms
• Experience automating IoT device state backup and restoration
• Experience with Azure Functions, Azure CLI, Terraform/Bicep or other Azure automation tooling
• Experience with recovery testing and validation in production-like environments

Broader Project Context

The overall IoT initiative also includes two parallel streams:

• Frontend Capacity Scaling & dlab Ingestion: translating Figma designs, design tokens, and UI components into reusable frontend code
• Backend & Edge / Mender Enterprise: integrating Mender Enterprise SaaS for secure fleet-wide OTA updates, package signing, progressive rollouts, and automatic rollback

These are parallel project streams; this position is focused specifically on Azure IoT Hub Disaster Recovery.

We are a fast-growing international iGaming company with 1,000+ professionals and a portfolio of successful products operating across Tier 1–3 markets worldwide.

Driven by innovation, data, and operational excellence, we create engaging player experiences and continue to expand our global presence. Our teams work in a dynamic, fast-paced environment where ownership, collaboration, and continuous growth are at the core of everything we do.

We are looking for an experienced Head of VIP  to lead the end-to-end VIP player lifecycle and drive the commercial performance of the VIP segment.

This is a senior leadership role responsible for managing the entire player journey across PreVIP → VIP → High Roll → Reactivation, ensuring sustainable revenue growth, player retention, and operational excellence.

Key Responsibilities

• Own and manage the full VIP lifecycle, including Active VIP, Recovery, Reactivation, and High Roll segments.
• Drive VIP revenue growth by increasing player activity, deposits, retention, and lifetime value.
• Monitor and optimize key performance metrics, including churn, downgrade, reactivation, and VIP base stability.
• Lead the High Roll function, ensuring effective management, retention, and development of high-value players while balancing commercial opportunities and player risk.
• Oversee the PreVIP pipeline, improving conversion into the VIP segment and accelerating the progression of high-potential players.
• Execute retention initiatives and promotional offers in partnership with the Retention team, ensuring they translate into measurable financial results.
• Evaluate the effectiveness of VIP offers and campaigns, providing actionable feedback to improve segmentation and commercial performance.
• Lead and develop multiple management layers, 
• Set objectives, monitor KPIs, and drive operational excellence across all teams.

• Oversee the relevance and effectiveness of VIP communications across all touchpoints, ensuring a consistent player experience.

   

Areas of Responsibility

• VIP Revenue (IN / IN-OUT)
• Active VIP player base
• VIP Retention and Churn
• Reactivation performance
• PreVIP to VIP conversion
• Player engagement, deposit behavior, and lifetime value

• Financial performance of the VIP segment

   

Nice to Have

• Experience managing a PreVIP function.
• Experience designing and optimizing operational processes.

• Proven track record of scaling VIP operations and growing revenue through player lifecycle management.

   

What We Offer

• Fully remote work.
• Competitive compensation package with a fixed salary and a monthly performance-based KPI bonus.
• Paid vacation and sick leave.
• Professional onboarding and continuous support.
• Career growth opportunities within a fast-growing international company.
• Access to a corporate psychologist, including individual and group sessions.
• Monthly professional development training with our Learning & Development Department to strengthen your leadership and professional skills.
• A dynamic international environment where your leadership and results have a direct impact on business success.

Think you're the right fit? We'd be excited to get to know you! Apply now and become part of our growing international team.🚀

We are looking for a technical support engineer in Bratislava.

Servers.com, powered by Nexcess, delivers specialized Infrastructure as a Service solutions for organizations where performance, scalability, and reliable execution are essential. As part of Nexcess, Servers.com contributes deep infrastructure expertise to a broader cloud technology organization serving businesses worldwide.
 

Our platform provides compute, storage, and networking services across the US, Europe, and Asia, with access to premium server hosting solutions in more than 26 data centers globally. We support leading enterprises and high-growth companies across industries including Big Data, AdTech, FinTech, Gaming, iGaming, Blockchain, and Streaming.

Requirements:
– your English is sufficient for e-mail correspondence;
– you are attentive to details, able to search and analyze information;
​– you have a deep understanding of how the Internet and networks work;
​– experience with Linux operating systems (Ubuntu, CentOS, Debian);
​– knowledge of working in the Linux terminal.​

We will welcome you to our team if you want to learn:
– system administration of servers from anywhere in the world;
– diagnose hardware, software and network server issues;
– work with hardware monitoring;
– work with cloud technologies.

We offer:
– work in a team of professionals at international level;
– comfortable working conditions: schedule without night shifts, no overtime, no phone support, smooth integration into the workflow;– mentor assistance, learning modern IT technologies;
– individual vocational training plan for 12+ months;
– opportunity to practice and improve your English;
– сompetitive salary and all necessary equipment;
– remote work from Bratislava with the possibility to use our co-working space;
– support of legalization in Slovakia if needed.

We are looking for a Network Engineer to join us.

Servers.com, powered by Nexcess, delivers specialized Infrastructure as a Service solutions for organizations where performance, scalability, and reliable execution are essential. As part of Nexcess, Servers.com contributes deep infrastructure expertise to a broader cloud technology organization serving businesses worldwide.
 

Our platform provides compute, storage, and networking services across the US, Europe, and Asia, with access to premium server hosting solutions in more than 26 data centers globally. We support leading enterprises and high-growth companies across industries including Big Data, AdTech, FinTech, Gaming, iGaming, Blockchain, and Streaming.

Key tasks:

• providing network equipment administration at multiple data centers;
• performing the routine and emergency maintenance works on network equipment;
• dealing with requests from external and internal clients;

• directly participating in internal projects (developing network, connecting new locations, implementing new equipment, automation).

   

Requirements:

• proficiency in LAN/WAN principles;
• strong understanding of dynamic network protocols (BGP/OSPF);
• understanding L2-networking: VLANs, xSTP family, LACP, Redundancy (LACP/VRRP/etc);
• ability to perform basic network troubleshooting;
• English level sufficient for reading technical documentation and communicating with customers (Intermediate at least);

• ability to learn, communication skills, willingness to take in and analyze large amounts of new information (mostly technical in English).

   

Will be a plus:

• experience with network equipment from Extreme, Juniper or Nokia;
• EVPN and/or MPLS knowledge;
• certifications from network equipment and software vendors;

• experience in telecom and/or datacenter networking.

   

What do we offer:

• work in a team of professionals at international level;
• mentor assistance, learning modern IT technologies;
• opportunity to practice and improve your English;
• сorporate English Program Compensation;
• comfortable working conditions: schedule without night shifts, no overtime, no phone support, smooth integration into the workflow;
• excellent pay and all necessary equipment;
• remote work from Bratislava with the possibility to use our co-working space;
• relocation support to Slovakia;
• support of legalization in Slovakia if needed.

We are looking for a motivated and detail-oriented Concierge to join our Customer Support team. The concierge (support) function for the Ascendix products covers client request triage, case management in Dynamics 365, product troubleshooting, bug reporting and escalation, and day-to-day client-facing support. 

Evening shifts only: 5:30 PM-2:30 AM (EET)

Requirements: 

• Strong spoken and written English—daily direct communication with US customers 
• Able to triage, troubleshoot, and manage a case queue independently after ramp-up 

• Clear technical communication—writes structured bug reports and client-facing responses 

   

Nice-to-have: 

• Support, helpdesk, or case management experience
• Salesforce experience (Administrator level or strong hands-on admin skills) 
• Experience with SaaS or CRM products 

• Commercial real estate or real estate domain familiarity 

   

Responsibilities: 

• Triage incoming client requests: categorize, resolve internally, or escalate to the appropriate team 
• Manage a typical queue of 20 to 30 active cases while maintaining quality and timely follow-up 
• Troubleshoot product issues across AscendixRE, Ascendix Search, Composer, Harvest, and AI Suite 
• Create clear bug reports and escalation briefs for Product and Dev handoffs 
• Maintain cases, tasks, and client records in Dynamics 365 
• Translate technical topics into broker-friendly language for non-technical customers

Ascendix offers you:

Healthcare:

• 20 paid vacation

• 5 paid sickness

   

Career and professional growth:

• B2B and remote cooperation
• Career development and professional growth
• Technical performance reviews and 360 Evaluation

• Collaboration with a personal Direct Manager, Technical leads, and mentors

   

Learning and Development:

• Opportunity for external event compensation

• Internal knowledge-sharing opportunities

   

Corporate spirit:

• Online and offline events & team-buildings
• Friendly and supportive atmosphere
• Open management

Level: Middle Engagement: Long-term contract Location: Europe (EU / EEA / UK), remote Working hours: EU business hours, shifted 2–3 hours later to ensure daily overlap with US West Coast (PST/PDT) mornings

About the Client

Our client is a leading enterprise data platform company building an open, high-performance data lakehouse for AI and analytical workloads. The platform combines an intelligent SQL query engine, an AI-ready semantic layer, and an open catalog built on Apache Iceberg — enabling Fortune 500 companies across finance, energy, manufacturing, and logistics to unify, query, and govern data at massive scale across cloud and on-premise sources.

About the Role

We are looking for a Middle-level Software Engineer to work on the core query engine of a large-scale distributed data platform. You will develop features across query planning, optimization, and execution, contribute to performance-critical components, and help evolve the platform's ability to process massive analytical workloads across heterogeneous data sources.

This is a systems-level, backend engineering role focused on distributed data processing internals — not application development or CRUD services.

Responsibilities

• Develop and maintain features across the query engine — planning, optimization, execution, and data access layers.
• Write high-quality, performance-conscious code in Java and/or C++.
• Work with SQL semantics, query plans, and execution operators over large-scale distributed data.
• Integrate with columnar formats, open table formats, and connectivity drivers used across the platform.
• Contribute to CI/CD pipelines and automated testing — participate in build, test, and release workflows in Jenkins.
• Deploy and validate work in Kubernetes (GKE / EKS / AKS) across GCP, AWS, and Azure using Docker.
• Debug complex issues spanning query planning, distributed execution, memory management, and I/O.
• Collaborate closely with US-based engineering teams on design reviews, code reviews, and technical decisions.

Required Qualifications

• Education: B.S. or M.S. in Computer Science, Computer Engineering, or a related technical field.
• Programming: Strong proficiency in Java or C++, with solid OOP and software design fundamentals. Candidates comfortable with both are especially valued.
• SQL & Data: Strong SQL skills and solid understanding of relational and analytical data systems, including query execution concepts.
• Data processing systems experience: Hands-on experience with data processing systems — query engines, distributed databases, ETL/ELT frameworks, or analytical platforms.
• Engineering experience: 3+ years in backend/systems software engineering.
• CI/CD & DevOps basics: Practical experience with Jenkins pipelines and modern development workflows.
• Containers: Working knowledge of Docker and basic Kubernetes (running workloads, debugging pods, kubectl fluency).
• Cloud: Comfortable operating in at least one major cloud (GCP, AWS, or Azure).
• Version Control: Confident with Git / GitHub workflows.
• English: Upper-Intermediate or higher (B2+) — daily written and verbal communication with a US-based engineering team.
• Availability: Able to work EU hours with a 2–3 hour shift toward US West Coast time to ensure daily overlap with the client team.

Desired Skills

• Experience with Apache Arrow (columnar in-memory format).
• Familiarity with Apache Calcite (SQL parsing, planning, optimization framework).
• Exposure to Gandiva or LLVM-based expression compilation.
• Experience with open table formats — Apache Iceberg, Delta Lake, or Hudi.
• Familiarity with distributed computing frameworks (e.g., Apache Spark, Kafka) and MPP SQL query engines (e.g., Presto, Trino, or similar).
• Understanding of query planning, optimization, and execution internals.
• Experience with data connectivity drivers: JDBC, ODBC, Arrow Flight.
• Kubernetes on managed services (GKE / EKS / AKS) and multi-cloud exposure.
• IaC tools such as Terraform.
• Experience with performance profiling and optimization of latency-sensitive systems.
  Please note: We can consider only candidates currently residing in the EU, EEA, or the UK.
  Please note: We can consider only candidates currently residing in the EU, EEA, or the UK

Level: Senior Engagement: Long-term contract Location: Europe (EU / EEA / UK), remote Working hours: EU business hours, shifted 2–3 hours later to ensure daily overlap with US West Coast (PST/PDT) mornings

About the Client

Our client is a leading enterprise data platform company building an open, high-performance data lakehouse for AI and analytical workloads. The platform combines an intelligent SQL query engine, an AI-ready semantic layer, and an open catalog built on Apache Iceberg — enabling Fortune 500 companies across finance, energy, manufacturing, and logistics to unify, query, and govern data at massive scale across cloud and on-premise sources.

About the Role

We are looking for a Senior Software Engineer to design, build, and own significant components of the core query engine of a large-scale distributed data platform. You will lead work across query planning, optimization, and execution — driving architectural decisions, mentoring middle engineers, and pushing the platform's performance and scalability boundaries across all major clouds.

This is a systems-level, backend engineering role focused on distributed data processing internals — not application development or CRUD services.

Responsibilities

• Architect, design, and implement significant components of the query engine — planner, optimizer, execution operators, memory management, and data access layers.
• Write and review high-quality, performance-critical code in Java and/or C++.
• Own end-to-end delivery of features from technical design through production rollout.
• Drive performance optimization work — profiling, benchmarking, and eliminating bottlenecks in latency- and throughput-sensitive paths.
• Integrate deeply with columnar formats, open table formats, and connectivity drivers.
• Mentor middle engineers, lead code reviews, and set technical standards for the team.
• Contribute to CI/CD architecture and quality processes across Jenkins, containerization, and multi-cloud deployment (GCP, AWS, Azure via Kubernetes / Docker).
• Debug complex, cross-layer issues spanning query planning, distributed execution, memory management, and I/O.
• Partner with US-based engineering leads on design reviews, architectural decisions, and roadmap execution.

Required Qualifications

• Education: B.S. or M.S. in Computer Science, Computer Engineering, or a related technical field.
• Programming: Strong proficiency in Java or C++, with deep understanding of OOP, systems design, memory management, and concurrency. Candidates strong in both are especially valued.
• SQL & Data: Advanced SQL skills and strong understanding of query execution internals — planning, optimization, and operator implementation.
• Data processing systems experience: Demonstrated experience building or extending data processing systems — query engines, distributed databases, ETL/ELT frameworks, or analytical platforms.
• Engineering experience: 5+ years in backend/systems software engineering, with a track record of owning significant components.
• CI/CD & DevOps: Solid experience with Jenkins and modern engineering workflows.
• Containers & Orchestration: Strong working knowledge of Docker and Kubernetes.
• Cloud: Hands-on experience with at least one major cloud (GCP, AWS, or Azure); exposure to more than one is a strong plus.
• Version Control: Confident with Git / GitHub workflows and rigorous code review practices.
• English: Upper-Intermediate or higher (B2+) — daily written and verbal communication with a US-based engineering team.
• Availability: Able to work EU hours with a 2–3 hour shift toward US West Coast time to ensure daily overlap with the client team.
• Leadership: Prior experience mentoring engineers, leading technical designs, or owning components end-to-end.

Desired Skills

• Deep experience with Apache Arrow (columnar in-memory format).
• Hands-on experience with Apache Calcite (SQL parsing, planning, optimization framework).
• Experience with Gandiva or LLVM-based expression compilation and code generation.
• Experience with open table formats — Apache Iceberg, Delta Lake, or Hudi.
• Deep familiarity with distributed computing frameworks (e.g., Apache Spark, Kafka) and MPP SQL query engines (e.g., Presto, Trino, or similar).
• Deep understanding of query planning, optimization (cost-based, rule-based), and execution internals.
• Experience with data connectivity drivers: JDBC, ODBC, Arrow Flight.
• Kubernetes on managed services (GKE / EKS / AKS) and multi-cloud exposure.
• IaC tools such as Terraform.
• Track record of performance optimization at the systems level — profiling, vectorization, cache/memory-conscious design.
• Prior experience contributing to open-source data infrastructure projects.
  Please note: We can consider only candidates currently residing in the EU, EEA, or the UK

Level: Senior Engagement: Long-term contract Location: Europe (EU / EEA / UK), remote Working hours: EU business hours, shifted 2–3 hours later to ensure daily overlap with US West Coast (PST/PDT) mornings

About the Client

Our client is a leading enterprise data platform company building an open, high-performance data lakehouse for AI and analytical workloads. The platform combines an intelligent SQL query engine, an AI-ready semantic layer, and an open catalog built on Apache Iceberg — enabling Fortune 500 companies across finance, energy, manufacturing, and logistics to unify, query, and govern data at massive scale across cloud and on-premise sources.

About the Role

We are looking for a Senior SDET to lead the design of automated test frameworks and testing strategy for a large-scale distributed data platform. You will own the quality of the query engine, connectivity layer, and backend services end-to-end — from framework architecture through CI/CD infrastructure across all major clouds — and mentor middle engineers on the team.

This is a data-heavy, backend-focused role. We are not looking for web/UI QA engineers — the work centers on validating distributed query execution, data correctness at scale, connectivity drivers, and backend microservices.

Responsibilities

• Architect, design, and evolve automated test frameworks in Python / pytest for backend services, REST APIs, and distributed data components.
• Define testing strategy for new features and platform components — coverage, risk assessment, and quality gates.
• Own end-to-end, integration, performance, and regression testing covering SQL query execution, data correctness at scale, and platform APIs.
• Lead performance and load testing efforts with JMeter, including workloads over JDBC / ODBC / Arrow Flight drivers.
• Design and validate large-scale data testing scenarios — query plans, result correctness across heterogeneous data sources, metadata consistency, and behavior under high concurrency.
• Own CI/CD test pipelines in Jenkins — architect, maintain, and continuously improve.
• Provision and manage test environments in Kubernetes (GKE / EKS / AKS) across GCP, AWS, and Azure using Docker; drive automation and reproducibility.
• Investigate complex, cross-layer failures and drive root-cause analysis with engineering.
• Mentor middle SDETs, review test designs, and set quality standards across the team.
• Partner with US-based development leads on shift-left practices, testability, and release readiness.

Required Qualifications

• Education: B.S. or M.S. in Computer Science, Computer Engineering, or a related technical field.
• Programming: Strong proficiency in Python, including pytest, with deep understanding of OOP, software design principles, and test framework architecture.
• SQL & Data: Advanced SQL skills and strong understanding of relational and analytical data systems, including query execution internals.
• Data-intensive testing experience: Demonstrated experience testing data-intensive systems — query engines, ETL/ELT pipelines, streaming platforms, or analytical databases. Candidates with only web/UI QA backgrounds are not a fit.
• Testing experience: 5+ years in backend/system test automation, with demonstrated ownership of test strategy and infrastructure.
• CI/CD & DevOps: Solid experience architecting and maintaining Jenkins pipelines and test environments.
• Containers & Orchestration: Strong working knowledge of Docker and Kubernetes (running workloads, debugging pods, deploying complex environments).
• Cloud: Hands-on experience with at least one major cloud (GCP, AWS, or Azure); exposure to more than one is a strong plus.
• Version Control: Confident with Git / GitHub workflows and code review practices.
• English: Upper-Intermediate or higher (B2+) — daily written and verbal communication with a US-based engineering team.
• Availability: Able to work EU hours with a 2–3 hour shift toward US West Coast time to ensure daily overlap with the client team.
• Leadership: Prior experience mentoring engineers, defining test strategy, or leading a QA/SDET function.

Desired Skills

• Deep experience testing REST APIs and backend microservices at scale.
• Hands-on with distributed computing frameworks (e.g., Apache Spark, Kafka) and MPP SQL query engines (e.g., Presto, Trino, or similar).
• Strong understanding of modern data lakehouse concepts, open table formats (Apache Iceberg), and data warehousing.
• Experience with data connectivity drivers: JDBC, ODBC, Arrow Flight.
• Performance testing with JMeter or comparable load-testing tools at production scale.
• Kubernetes on managed services (GKE / EKS / AKS) and multi-cloud exposure.
• IaC tools such as Terraform.
• Deep understanding of query plan generation, query acceleration / materializations, and metadata integrity in distributed data systems.
• Prior experience leading a QA/SDET function in a data-platform or database engineering environment.
  Please note: We can consider only candidates currently residing in the EU, EEA, or the UK.

We're looking for someone who genuinely understands how Reddit works - not someone who simply posts content and hopes for the best.
 

Location: Prague office or remote
Employment: Full-time
 

What you'll do

• Launch, manage and optimize Reddit Ads campaigns
• Set up and manage two official brand subreddits
• Create native Reddit content and community campaigns
• Run promotional campaigns and AMAs
• Monitor brand mentions and community feedback
• Handle reputation management and public discussions
• Build relationships with relevant subreddit moderators
• Analyze results and improve our Reddit strategy
 

What we're looking for

• 1+ year of hands-on Reddit experience
• Experience with Reddit Ads
• Background in digital / performance marketing
• English B2/C1
• Experience with community management and moderation
• Good understanding of Reddit culture and community guidelines
• Analytical mindset and willingness to test and optimize
 

What we provide

• All necessary software and tools
• Dedicated advertising budget
• Resources for community and promotional campaigns
• Opportunity to build the Reddit direction from scratch

NuxGame works with iGaming operators of all sizes, helping companies enter new markets or strengthen existing brands. As a company developing software for gaming casinos, NuxGame offers solutions that allow you to create outstanding brands and achieve your business goals. We invite an IT Recruiter to join our team.

What will your responsibilities include:
 

• Using resources to search for candidates: linkedin, djinni, job sites, boolean search, x-ray search;
• Evaluating resumes and professional skills of candidates;
• Supporting communication with candidates during the selection process;
• Maintaining a database of candidates, updating information.
• Conducting interviews with candidates
   

What we expect from a candidate:

• Experience in recruiting from 2 years
• Experience in searching on platforms Linkedin, Djinni, Work.ua, etc.
• English level: Upper-Intermediate or higher
   

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 09:00/10:00 to 17:00/18:00 (Kyiv time), Mon-Fri.
• Financial Stability: timely payment for compensation for services
• Personal Equipment Policy: equipment is 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 are waiting for you on our team!

Level: Middle Engagement: Long-term contract Location: Europe (EU / EEA / UK), remote Working hours: EU business hours, shifted 2–3 hours later to ensure daily overlap with US West Coast (PST/PDT) mornings

About the Client

Our client is a leading enterprise data platform company building an open, high-performance data lakehouse for AI and analytical workloads. The platform combines an intelligent SQL query engine, an AI-ready semantic layer, and an open catalog built on Apache Iceberg — enabling Fortune 500 companies across finance, energy, manufacturing, and logistics to unify, query, and govern data at massive scale across cloud and on-premise sources.

About the Role

We are looking for a Middle-level SDET to design and maintain automated tests for a large-scale distributed data platform. You will validate the correctness, performance, and reliability of the query engine, connectivity layer, and backend services across all major clouds.

This is a data-heavy, backend-focused role. We are not looking for web/UI QA engineers — the work centers on validating distributed query execution, data correctness at scale, connectivity drivers, and backend microservices.

Responsibilities

• Develop and maintain automated tests in Python / pytest for backend services, REST APIs, and distributed data components.
• Write end-to-end, integration, and regression tests covering SQL query execution, data correctness, and platform APIs.
• Support performance and load testing with JMeter, including workloads over JDBC / ODBC / Arrow Flight drivers.
• Validate data-intensive scenarios — query plans, result correctness across data sources, metadata consistency, and behavior under concurrency.
• Contribute to CI/CD test pipelines in Jenkins — configure, maintain, and troubleshoot.
• Provision and manage test environments in Kubernetes (GKE / EKS / AKS) across GCP, AWS, and Azure using Docker.
• Investigate failures across the stack — query engine, distributed services, drivers, infrastructure — and drive them to resolution with engineering.
• Collaborate with US-based developers on testability and quality gates.

Required Qualifications

• Education: B.S. or M.S. in Computer Science, Computer Engineering, or a related technical field.
• Programming: Strong proficiency in Python, including pytest, with a solid grasp of OOP and software design principles.
• SQL & Data: Strong SQL skills and solid understanding of how relational and analytical data systems work.
• Data-intensive testing experience: Hands-on experience testing data-intensive systems — query engines, ETL/ELT pipelines, streaming platforms, or analytical databases. Candidates with only web/UI QA backgrounds are not a fit.
• Testing experience: 3+ years in backend/system test automation or SDET roles.
• CI/CD & DevOps basics: Practical experience with Jenkins pipelines and deploying/maintaining test environments.
• Containers: Working knowledge of Docker and basic Kubernetes (running workloads, debugging pods, kubectl fluency).
• Cloud: Comfortable operating in at least one major cloud (GCP, AWS, or Azure).
• Version Control: Confident with Git / GitHub workflows.
• English: Upper-Intermediate or higher (B2+) — daily written and verbal communication with a US-based engineering team.
• Availability: Able to work EU hours with a 2–3 hour shift toward US West Coast time to ensure daily overlap with the client team.

Desired Skills

• Experience testing REST APIs and backend microservices at scale.
• Familiarity with distributed computing frameworks (e.g., Apache Spark, Kafka) and MPP SQL query engines (e.g., Presto, Trino, or similar).
• Understanding of modern data lakehouse concepts, open table formats (Apache Iceberg), and data warehousing.
• Experience with data connectivity drivers: JDBC, ODBC, Arrow Flight.
• Performance testing with JMeter or comparable load-testing tools.
• Kubernetes on managed services (GKE / EKS / AKS) and multi-cloud exposure.
• IaC tools such as Terraform.
• Understanding of query plan generation, query acceleration / materializations, and metadata integrity in distributed data systems.
  Please note: We can consider only candidates currently residing in the EU, EEA, or the UK