Jobs Poland

We're looking for a 3D Artist for Roblox projects who can fully own the 3D side of a title.

You will be the only 3D artist on the project, responsible for environments, characters/creatures, props, rigging, animation, asset import, and optimization in Roblox Studio.

Code and UI design are handled internally — we need someone who can take a written specification and deliver the complete 3D side of the game.

Tech Stack:

• Blender — modeling, UVs, rigging, animation, baking
• Roblox Studio — MeshParts, SurfaceAppearance/PBR, MaterialVariants, terrain, lighting
• FBX → Roblox pipeline — skinned meshes, deform-only export, maximum 4 bone influences per vertex
• Substance Painter / Photoshop / Krita — textures and baking
• AI 3D and texture generation — Meshy, Hyper3D-Rodin, Hunyuan3D, and similar tools — required

What We're Looking For:

• 2+ years of professional 3D game development experience
• A portfolio demonstrating a stylized low-poly / cartoon art style
• Clean topology, sensible UVs, and the ability to maintain a consistent art style and defined color palette
• Experience baking procedural/toon materials into textures using Cycles/Eevee and building materials for Roblox
• Rigging and skinning experience:
  • bone-based rigs
  • squash & stretch
  • deformation without scaling bones
  • looped animations such as idle, jump, and reaction
• Strong understanding of performance budgets:
  • polygon count
  • texture size and quantity
  • draw calls
  • CollisionFidelity / RenderFidelity
  • assets must perform well on mobile devices
• Environment art experience:
  • building complete themed locations
  • terrain
  • islands/biomes
  • props and decoration
  • readable silhouettes and strong composition
• AI-first workflow — you use AI to generate base shapes and textures, then refine and finish them manually. Manually blocking out assets from scratch when AI can handle the initial work is considered unnecessary overhead.

• Nice to have:
  • published Roblox games
  • mobile F2P experience

Responsibilities:

• Own the entire 3D production of a title:
  • themed environment set
  • roster of creatures/characters and variations
  • props and decorative assets
• Create rigs and looped animations for creatures
• Export and import assets into Roblox Studio, including checking:
  • scale
  • orientation
  • materials
  • deformation
• Optimize and reuse assets through:
  • modular kits
  • shared texture atlases
  • color/material variations instead of creating new meshes
• Work from a written specification and deliver the result already assembled and tested in Roblox Studio, not just a collection of .blend files
• Work in short, fixed release cycles — the complete art pass for a title should fit within a single cycle, with the next title already in the pipeline

What You Won't Have to Do:

• UI design
• Icons, thumbnails, and marketing art — handled internally
• Scripting or gameplay programming

What We Offer:

• 💰 $2,000+
• 🌍 Fully remote
• 🎨 Full ownership of the visual side of your project, with no micromanagement
• 🤖 AI tools are paid for and expected to be used to their full potential
• 📈 Live projects with real players and real revenue

Hiring Process:

We use a paid technical test.

You'll create one asset based on a written specification:

• either a creature with a rig and looped animation
• or a small environment set

The final result must be imported and properly assembled in Roblox Studio.

About the Role

We're looking for a highly experienced Senior Media Buyer to join our performance marketing team and scale subscription-based products across Tier-1 markets.

This is not a campaign management role—we're looking for someone who thinks like a growth marketer, owns performance, continuously experiments, and knows how to scale profitable acquisition through Facebook and other paid channels.

You'll work with large advertising budgets, web funnels, creative testing, analytics, and cross-functional teams to drive sustainable growth.
 

What You'll Do

• Plan, launch, optimize, and scale high-volume paid acquisition campaigns.
• Manage Meta (Facebook & Instagram) as the primary acquisition channel while exploring and scaling additional traffic sources.
• Work with monthly advertising budgets exceeding $200K–300K+.
• Build, optimize, and improve web funnels to maximize conversion and profitability.
• Analyze every stage of the acquisition funnel and identify opportunities for growth.
• Develop and prioritize testing hypotheses across targeting, creatives, landing pages, offers, and funnels.
• Drive continuous creative testing, working closely with designers and creative strategists.
• Monitor key performance metrics including CPA, ROAS, CAC, LTV, Trial Rate, Purchase Rate, and overall funnel efficiency.
• Use analytics to make data-driven optimization decisions rather than relying on intuition.
• Collaborate with Product, Design, Analytics, and Development teams to improve conversion rates.
• Stay up to date with platform changes, industry trends, and emerging acquisition opportunities.
   

Must Have

• 4+ years of hands-on experience in performance marketing/media buying.
• Extensive experience buying traffic on Meta (Facebook & Instagram).
• Experience managing large advertising budgets ($200K+ per month or more).
• Strong experience with web funnels (not only mobile app campaigns).
• Deep understanding of the complete customer acquisition funnel.
• Proven experience designing and running structured A/B tests.
• Strong analytical mindset with the ability to turn data into actionable insights.
• Experience working with attribution and analytics platforms (GA4, AppsFlyer, Mixpanel, Amplitude, or similar).
• Strong understanding of conversion rate optimization (CRO).
• Experience working closely with creative production and performance creatives.
• Ability to independently generate, validate, and prioritize growth hypotheses.
• Advanced knowledge of campaign optimization, audience strategy, bidding models, and scaling techniques.
• Strong understanding of AI-powered workflows and the ability to leverage AI to improve campaign performance, accelerate research, generate testing hypotheses, optimize creatives, and automate repetitive marketing tasks.
• Hands-on experience using AI tools (such as ChatGPT, Claude, Gemini, Cursor, or similar) as part of the daily media buying workflow.
• Experience building or using marketing automations with AI and no-code/low-code tools to improve operational efficiency.
• Strong ownership mindset with the ability to independently identify growth opportunities, prioritize experiments, and take full ownership of acquisition performance.
   

Nice to Have

• Experience with additional paid acquisition channels (Google Ads, Native, TikTok, DSPs, Apple Search Ads, etc.).
• Experience promoting subscription-based or SaaS products.
• Experience in iOS/mobile app marketing.
• Familiarity with SKAN, MMPs, and privacy-focused attribution.
• SQL or advanced spreadsheet skills.
• Experience with BI tools such as Tableau, Looker Studio, or Power BI.
• Experience building automations using tools such as n8n, Make, Zapier, or similar platforms.
• Basic understanding of APIs and AI-assisted workflow automation.
   

What Success Looks Like

• Profitably scales paid acquisition across multiple channels.
• Continuously launches new experiments across audiences, creatives, funnels, and offers.
• Improves funnel conversion rates through data-driven optimization.
• Proactively identifies growth opportunities and new acquisition strategies.
• Uses AI and automation to increase productivity, accelerate experimentation, and improve campaign performance.
• Makes decisions based on analytics rather than assumptions.
• Collaborates effectively with Product, Design, Analytics, and Development teams to drive business growth.

About the Project
Our client operates community and specialty hospitals, a managed care organization, a physician network, community health centers, and home care and other health-related entities in the United States. The Research Portal — one of the internal products — is a web-based application with over 10,000 current users developed for the entire research community to review, monitor, and manage research portfolio. The main goal is to unite distributed and complex organizational processes into one application and help alleviate administrative burdens. 
 

Skills & Experience

• 5+ years of professional experience in data warehouse development.
• Strong hands-on experience with: T-SQL, stored procedures, query performance tuning, and indexing strategies.
• Proven experience building and maintaining ETL pipelines with SSIS (SQL Server Integration Services).
• Solid understanding of dimensional modeling (star/snowflake schemas), slowly changing dimensions, and data warehouse design best practices.
• Experience with source-to-target mapping, data quality checks, and reconciliation processes.
• English — Upper Intermediate or above.
   

Nice to have

• Familiarity with Azure data services (Azure SQL MI, IR, Data Factory, SSIS, Storage Account, Key Vault) as a migration/modernization path.
• Experience working with healthcare or other regulated/compliance-sensitive data.
• Exposure to CI/CD practices for database and ETL deployments.
   

Responsibilities

• Design, build, and maintain ETL/ELT pipelines using SSIS to move and transform data from operational systems into the data warehouse.
• Design and evolve dimensional models (facts, dimensions, SCDs) that support reporting and analytics needs.
• Write and tune complex T-SQL queries, stored procedures, and views; troubleshoot performance bottlenecks.
• Establish and enforce data quality, validation, and reconciliation processes across the warehouse.
• Collaborate closely with Product Owners, Business Analysts, and backend engineers to translate business requirements into data models and pipelines.
• Document data flows, schemas, and transformation logic to support maintainability and onboarding.
• Serve as an escalation point for data-related production issues; perform root-cause analysis and implement long-term fixes.
• Monitor ETL job health and proactively address failures, latency, and data drift.

Requirements

⁃ At least 3 years of experience in SMM (Gaming, IT, Marketing preferably);
 ⁃ Strong copywriting skills in English (B2+);
 ⁃ Proficiency in working with SMM analytical tools;
 ⁃ High level of accuracy and strong attention to detail;
 ⁃ Strong visual awareness, knowledge of current trends and tools in social media, and the ability to easily navigate and track content trends;
 ⁃ Excellent communication skills and a willingness to work in a team;
 ⁃ Deep understanding of audience behavior and engagement mechanics;
 ⁃ Ability to develop strategies and independently manage projects.

Will be plus:

⁃ Experience in mobile shooting and creating native content (stories, reels, TikTok).
 ⁃ Experience in launching advertising campaigns on social media

Responsibilities:

- Develop and implement a social media content plan aligned with the SMM strategy and overall marketing goals;
- Create and manage content, including expert-level texts that highlight product and industry knowledge;
- Adapt content to suit the specifics of each platform and target audience;
- Track and analyze SMM metrics, competitor data, and ad campaign effectiveness to optimize performance;
- Collaborate with cross-functional teams (design, PR, marketing) to create cohesive content;
- Stay up-to-date with the latest SMM trends, news, and best practices, particularly those relevant to the iGaming industry;
- Deliver clear, concise reports and presentations that showcase achieved KPIs.

Join a fast-growing international project where your work will impact mobile products used by millions of users worldwide. We are looking for a Middle/Senior React Native Developer with strong mobile expertise and a product-oriented mindset to strengthen our distributed team.

At Sigma Software, you will collaborate with experienced engineers to build scalable and high-performing applications for the iGaming domain.

Why join us? We offer the opportunity to work with modern technologies, influence product development decisions, and grow professionally in a collaborative engineering culture.

CUSTOMER

Our Customer is one of Europe’s largest GameTech companies and the owner of one of the biggest mobile gambling platforms with millions of active users worldwide. The company combines enterprise-scale products with a startup-like approach to innovation and product delivery.

PROJECT

You will join a team developing modern mobile applications for globally recognized iGaming brands. The project focuses on delivering high-quality user experiences, supporting new product launches, and expanding existing brands into new international markets. The team follows a mobile-first approach and values ownership, collaboration, and engineering excellence.

Responsibilities:

• Develop and maintain React Native applications for iOS and Android platforms
• Ensure smooth and engaging mobile user experiences
• Collaborate with cross-functional teams to deliver high-quality solutions
• Improve and maintain existing applications with a product-oriented mindset
• Contribute to launching new brands and expanding products into new markets
• Participate in technical discussions and suggest improvements across the development process

• Take ownership of application quality, performance, and stability

   

Requirements:

• 3+ years of commercial experience with React Native development
• Strong knowledge of React and React Native
• Experience with TypeScript
• Knowledge of GraphQL
• Experience with GitHub or other version control systems
• Understanding of mobile-first development principles
• Experience working with iOS and Android applications

• Upper-Intermediate level of English

   

Will be a plus:

• Experience writing unit tests
• Understanding of native mobile development
• Experience working in product-oriented teams

• Knowledge of CI/CD practices for mobile applications

   

Personal profile:

• Strong ownership mindset
• Team-oriented approach to development
• Proactive communication skills
• Attention to detail and quality
• Ability to drive initiatives independently
• Willingness to learn and share knowledge

_____________________________________________________________

Приєднуйся до міжнародного проєкту, що стрімко розвивається, де твоя робота впливатиме на мобільні продукти, якими користуються мільйони людей по всьому світу. Ми шукаємо Middle/Senior React Native Developer із сильною мобільною експертизою та product-oriented mindset для посилення нашої distributed team.

У Sigma Software ти співпрацюватимеш із досвідченими інженерами над створенням масштабованих і високопродуктивних застосунків для сфери iGaming.

Чому варто приєднатися до нас? Ми пропонуємо можливість працювати з сучасними технологіями, впливати на продуктові рішення та професійно зростати в collaborative engineering culture.

Клієнт

Наш клієнт — одна з найбільших GameTech-компаній у Європі та власник однієї з найбільших мобільних gambling-платформ із мільйонами активних користувачів у всьому світі. Компанія поєднує enterprise-рівень продуктів зі startup-підходом до інновацій та delivery процесів.

Проєкт

Ти приєднаєшся до команди, яка розробляє сучасні мобільні застосунки для всесвітньо відомих iGaming-брендів. Проєкт зосереджений на створенні якісного user experience, підтримці запуску нових продуктів і розвитку існуючих брендів на міжнародних ринках. Команда дотримується mobile-first підходу та цінує ownership, collaboration і engineering excellence.

Обовʼязки:

• Розробляти та підтримувати React Native застосунки для платформ iOS та Android
• Забезпечувати плавний і захопливий mobile user experience
• Співпрацювати з cross-functional командами для створення високоякісних рішень
• Покращувати та підтримувати існуючі застосунки з product-oriented mindset
• Долучатися до запуску нових брендів і розширення продуктів на нові ринки
• Брати участь у технічних обговореннях і пропонувати покращення процесів розробки

• Брати відповідальність за якість, продуктивність і стабільність застосунків

   

Вимоги:

• 3+ роки комерційного досвіду розробки з React Native
• Глибокі знання React та React Native
• Досвід роботи з TypeScript
• Знання GraphQL
• Досвід роботи з GitHub або іншими системами контролю версій
• Розуміння принципів mobile-first development
• Досвід роботи із застосунками для iOS та Android

• Рівень англійської — Upper-Intermediate

   

Буде перевагою:

• Досвід написання unit tests
• Розуміння native mobile development
• Досвід роботи в product-oriented командах

• Знання CI/CD practices для мобільних застосунків

   

Особистий профіль:

• Сильний ownership mindset
• Командний підхід до розробки
• Проактивні комунікаційні навички
• Уважність до деталей та якості
• Здатність самостійно драйвити ініціативи
• Бажання навчатися та ділитися знаннями

Sprinterra is an Acumatica Partner and active participant in the Acumatica Development Network program. We provide consulting and development services based on the Acumatica xRP Platform — from UI customizations to complete ERP modules and complex integrations. Our clients are mid-market businesses in the US across construction, distribution, manufacturing, and professional services.

About the Role:

We are looking for an experienced Business Analyst with a strong ERP background to join our Acumatica delivery team.

As our BA, you will bridge business stakeholders and the technical team, owning the full requirements lifecycle — from discovery and process mapping through specs, UAT, and post-release improvements. You will work directly with US-based clients, helping them get the most out of Acumatica by understanding their business processes and translating them into efficient, scalable solutions.

We are looking for someone who has worked on ERP projects — implementation, optimization, or major enhancements — and understands how business processes translate into system configuration and custom development. Experience with any ERP (NetSuite, Dynamics 365, SAP, Oracle, Odoo, or similar) is highly valued. Acumatica knowledge is a strong plus but not required — we provide structured onboarding and certification path.

Requirements:

Must-have:

• 3+ years of Business Analyst experience on ERP / accounting / operations projects (implementation, optimization, or major enhancements).
• Strong understanding of business process mapping (Order-to-Cash, Procure-to-Pay, Record-to-Report; inventory/manufacturing a plus).
• Working knowledge of accounting fundamentals (GL, AP, AR, cash management, revenue recognition basics).
• Proven ability to write clear requirements artifacts:
  • user stories / acceptance criteria
  • functional specs
  • process flows (BPMN or similar)
  • test cases / UAT scripts
• Experience collaborating with developers and solution architects (translate business needs into functional + data requirements).
• Comfortable with data analysis:
  • Excel (advanced)
  • ability to interpret datasets, reconcile transactions, validate outcomes
• Strong stakeholder skills: run workshops, manage scope, prioritize backlog, communicate tradeoffs.
• Excellent written and verbal English.

Strongly preferred:

• Prior work with any ERP: NetSuite, Dynamics 365, SAP, Oracle, Sage, Odoo, etc.
• Familiarity with reporting concepts: dashboards, financial reporting, management reporting.
• Understanding of integrations: REST/SOAP APIs, file imports/exports, middleware concepts.
• Experience with implementation partners/VARs and client-facing delivery.

Nice-to-have (Acumatica-specific but not required):

• Acumatica experience (Financials, Distribution, Project Accounting, Construction, etc.).
• Knowledge of Acumatica concepts: Screens, GIs (Generic Inquiries), Workflows, Role-based access, Import Scenarios.
• Exposure to Acumatica customization model (high level) and release testing.

Key responsibilities: 

• Become an expert in Acumatica OOTB functionality and recommend best-fit solutions before custom development.
• Lead discovery to document as-is processes, define to-be processes, and identify gaps.
• Translate business needs into efficient customization designs, focusing on simplicity, maintainability, and upgrade-safe patterns.
• Produce developer-ready specs and validate delivered functionality through UAT and regression checks.
• Maintain a structured backlog in Jira and ensure clarity of scope, priorities, and acceptance criteria.

Learning expectation:

• Willingness to complete structured onboarding and become proficient in Acumatica within 60–90 days (navigation, core modules, workflows, reporting, common configuration patterns).

S* S* Inc

S* S* Science Inc is a U.S.-based fintech company operating in the investment and financial services space. Our distributed teams work across Poland, the United States, and Ireland, collaborating on technology-driven solutions related to stocks and investments.

Security, compliance, and the responsible handling of sensitive financial data are central to how we operate as we build scalable products in a regulated environment.

Project

The engineer will initially get familiar with the product, domain, and existing codebase by working on current issues and fixes. After onboarding, the role will gradually expand into the development of new change requests and product enhancements.

The project is focused on backend development within a complex fintech environment involving distributed systems, microservices, event-driven architecture, cloud technologies, and data-intensive applications.

Requirements

We are looking for an experienced backend engineer with strong hands-on experience in:

• Core Java and Spring
• Server-side development
• SQL
• Microservices
• REST APIs
• Kafka and event-driven architectures
• Python
• Kubernetes
• GitHub
• Redis and caching
• Azure
• Snowflake
• PostgreSQL
• Cloud-native development
• CI/CD
• Distributed systems
• Concurrency
• Multi-tenancy
• Data governance

Experience with modern LLM and agentic technologies is highly valuable, including:

• Prompt engineering
• Model Context Protocol (MCP)
• Retrieval-Augmented Generation (RAG)
• LLM/agentic development

Engagement Details

Initial contract duration: 1 year, with the possibility of extension based on performance and skill set
Hourly remuneration: $32.5 USD/hour for a Middle engineer – 35 USD/hour  for a Senior Engineer 
Engagement: Full-time
Location / time zone: Poland
Working language: English
Working hours: Standard Polish working hours, with at least 4 hours of overlap with U.S. Eastern Time

Recruitment Process

The recruitment process follows our standard interview stages, including technical and client-side evaluation.

Important — Please Read Before Applying

The client is building a product in the banking, investment, and brokerage systems domain. Due to strict investor, security, and compliance requirements, every candidate must successfully complete a background check.

For this reason, candidates must:

• be currently based in Poland;
• have been a taxpayer in Poland for at least 2 years;
• be able to provide the required documentation for the background-check process.

We are looking for someone who can quickly understand an existing system, resolve complex backend issues, and gradually take ownership of new development in a security-sensitive fintech environment.

Description:
The project is an AI platform for marketing, it connects marketing professionals, data, tools and AI in a single place. It is the simplest, safest and fastest way to realize the benefits of scaled AI – delivering better-informed creative ideas faster, at scale and at lower cost.
We’re endlessly curious and our team of thinkers, builders, creators and problem solvers are over 2,000 strong, across 20 markets around the world.

We are seeking a talented and experienced Backend Engineer to join our engineering team. You will be instrumental in designing, developing, and maintaining the robust and scalable backend systems that power our cutting-edge marketing technologies, including the AI platform. If you have a passion for building high-performance APIs, working with large datasets, and contributing to the future of AdTech, we want to hear from you.

Requirements

• 4+ years of professional experience in backend software development.
• Strong proficiency in Python
• Extensive experience designing and building RESTful APIs.
• Solid understanding of database systems.
• Experience with cloud platforms GCP and developing cloud-native applications.
• Familiarity with containerization technologies (Docker).
• Knowledge of message queues/event streaming platforms (e.g., Kafka, RabbitMQ, SQS/SNS) is highly desirable.
• Experience with microservices architecture and distributed system design.
• Proficiency with version control systems, particularly Git.
• Strong problem-solving skills, analytical thinking, and attention to detail.
• Excellent communication and collaboration skills to work effectively within cross-functional teams.

Job responsibilities

• Design and Develop Robust Backend Systems
• Design, develop, and implement high-performance, scalable, and resilient backend services and APIs (REST, gRPC) that support our various data products and AI platforms.
• Write clean, maintainable, and efficient code in Python using best practices and appropriate design patterns.
• Collaborate with architects and senior engineers to define system architecture, data models, and integration strategies.
• Integrate with internal and external data sources, AI/ML services, and third-party APIs relevant to the AdTech ecosystem.
• Ensure Scalability, Reliability, and Performance
• Optimize existing backend services for maximum speed, scalability, and stability, handling large volumes of data and traffic inherent in the AdTech domain.
• Implement robust monitoring, logging, and alerting solutions to proactively identify and address system issues.
• Participate in performance tuning, troubleshooting, and debugging of complex backend systems.
• Contribute to the continuous improvement of our deployment processes, CI/CD pipelines, and cloud infrastructure interactions.
• Uphold Code Quality and Best Practices
• Conduct thorough code reviews, ensuring adherence to coding standards, security best practices, and architectural guidelines.
• Develop comprehensive unit, integration, and end-to-end tests to guarantee the quality and reliability of backend components.
• Contribute to technical documentation, including API specifications, architectural diagrams, and system runbooks.
• Actively participate in the agile development process, including sprint planning, daily stand-ups, and retrospectives.

SBC Performance drives scalable growth for brands ready to expand globally.

Working across eCommerce, health & wellness, education, and entertainment, our team helps brands acquire customers faster and scale across 26+ global markets. We combine data-driven paid media, performance creative, and advanced analytics to turn marketing into a predictable revenue engine.
Trusted by 200+ companies, managing $150M+ in ad spend.
 

Scale faster. Grow smarter.

Now, we’re looking for a Full Stack Engineer to join our AdTech product team. Someone passionate about building scalable, data-driven systems that power performance marketing automation and analytics.
 

Key Responsibilities:

• Design, build, and maintain frontend and backend services for the internal AdTech platform.
• Develop Angular (v12+) applications with TypeScript, using reactive patterns (RxJS, Angular Material, reactive forms).
• Implement and optimize state management and change detection for high-performance UI.
• Build and maintain Node.js microservices with TypeScript and RESTful APIs.
• Work with PostgreSQL (TypeORM) and Firestore (NoSQL) for data modeling and storage.
• Implement asynchronous patterns, error handling, and background data processing.
• Integrate with Google Cloud Platform (GCP): Cloud Functions, Firestore, Cloud Storage, and Secret Manager.
• Utilize Redis caching, message queues (RabbitMQ / Pub/Sub), and efficient pagination/filtering for large datasets.
• Collaborate with product, analytics, and QA teams to deliver robust, scalable AdTech solutions.
   

Requirements:

• 3+ years of experience as a Full Stack Engineer
• Experience with Node.js, Angular (v12+), and TypeScript in production environments
• Strong knowledge of RxJS, Angular Material, and reactive forms
• Experience with state management and change detection optimization
• Experience with microservices architecture and RESTful APIs
• Proficiency with PostgreSQL (TypeORM) and Firestore (NoSQL)
• Understanding of asynchronous patterns and error handling
• Experience deploying and managing Cloud Functions (triggers, logs, monitoring)
• Knowledge of Firestore queries, indexing, and data modeling
• Familiarity with Cloud Storage and Secret Manager
• Docker basics for local development and testing
• Experience with message queues (RabbitMQ or Pub/Sub)
• Redis caching and session management
• Handling large datasets (pagination, filtering, sorting)
   

Nice to Have

• Experience with ad platform APIs (TikTok Business API, Facebook Graph API, Google Ads API)
• Working knowledge of BigQuery for analytics and data aggregation
• Experience building worker pools and parallel processing pipelines
• Familiarity with CI/CD pipelines and deployment automation
• Understanding of AdTech concepts — campaigns, budgets, pixels, conversions
• Experience with high-volume, real-time data systems
   

What We Offer

• Hybrid job in Prague/Warsaw or remote
• Competitive compensation
• Flexible working hours: we start our operation day between 9:00 — 11:00 CET
• All necessary equipment
• Paid vacation and sick leaves
• Educational support: reimbursement of certification, training, and a knowledge-sharing atmosphere
• Company events and multiple internal activities
• Open feedback and transparent direct communication

We’re building and scaling a high-volume, performance-driven newsletter portfolio and are looking for a Senior Email Marketing Manager to fully own newsletter growth, engagement, and monetization.

This role is for someone who understands newsletters as a revenue channel, not just a publishing task.

You’ll work closely with authors, AI writers, designers, and monetization partners to ensure every send is optimized for opens, clicks, and revenue, while maintaining strong editorial quality.

Your primary mission:
 

Key Responsibilities

Email & Newsletter Performance Ownership

• Own end-to-end newsletter strategy, publishing, and optimization
• Optimize subject lines, preheaders, layouts, CTAs, and content flow
• Maintain consistent, high-quality publishing schedules across all newsletters
• Review, QA, and approve all outgoing content before sending

 Monetization & Advertising Optimization

• Integrate ads natively within newsletters to maximize CTR and revenue
• Test ad placements, formats, and messaging without harming reader trust
• Analyze performance and continuously improve monetization strategy

Scaling & Team Leadership

• Collaborate closely with writers, AI tools, designers, and growth teams
• Build repeatable processes, guidelines, and quality standards
• Provide weekly performance insights and improvement recommendations
   

Requirements

• Strong experience in email marketing
• Deep understanding of email performance metrics: open rate, CTR, conversions, revenue per send
• Hands-on experience managing multiple email campaings at scale
• Comfortable using AI tools
• Strong editorial and layout instincts (formatting, hierarchy, readability)
• Excellent organization — able to manage 15–20+ newsletters simultaneously
• Strong QA mindset: zero tolerance for broken links, typos, or formatting errors
• High level of English: C1
   

Nice to Have

• Experience with platforms like Beehiiv, Substack, Ghost
• Experience working with ad monetization, sponsorships, or affiliate content
• Background in content-led growth or digital publishing
• Experience scaling multiple content brands or media products

We are hiring on behalf of our client – an American media company with an office in Warsaw. They run a high-volume, performance-driven newsletter portfolio and drive traffic to advertisers and brand partners through owned channels. Affiliate revenue is a core part of the business, and they need someone to own the partner relationships that make it work.

This is a senior, commercial role. You will be the main point of contact for advertisers, affiliate networks, and affiliate managers — building relationships strong enough that partners bring you their best deals first, before anyone else sees them.

You will own payout negotiation end to end: commission rates, CPAs, rev shares, bonuses. That means reading performance data, spotting where a deal is underpriced, and pushing for better terms – not just accepting what a partner offers. You also own tracking hygiene across campaigns: links, sub-IDs, attribution, making sure nothing breaks and no revenue leaks.

Responsibilities

1. Partner communication & coordination

• Be the main point of contact for advertisers, affiliate networks, and affiliate managers
• Keep promo schedules, offer updates, performance feedback, and follow-ups tight and proactive
• Build strong relationships so partners prioritize us and share better deals first
• Spot new opportunities early and move fast to secure them

2. Payout negotiation & deal management

• Negotiate commission rates, CPAs, rev shares, and bonuses to maximize earnings
• Regularly review terms and push for improvements based on performance data
• Identify underperforming/undervalued deals and renegotiate with clear numbers
• Manage renewals and escalate when terms need to change

3. Tracking, links & execution

• Own tracking links, sub-IDs, parameters, and attribution hygiene across campaigns
• Prepare promo packages for internal teams (links, copy, creatives, instructions)
• Coordinate launches across multiple partners and deadlines at the same time
• Keep clean records of partners, offers, assets, and timelines

4. Performance & growth

• Monitor partner performance and flag where we’re leaving money on the table
• Improve partner workflows so we execute faster and capture more revenue
• Longer-term: industry events and conferences can be part of growth, but near-term focus is performance and revenue impact

Requirements

• 4+ years in affiliate / performance marketing (preferably publisher/traffic side)
• Proven experience negotiating payouts (CPA, rev share, commissions, bonuses) with advertisers or networks
• Strong understanding of tracking (links, sub-IDs, attribution, what breaks conversions)
• Highly organized with a “zero mistakes” mindset
• Strong English (C1+)
• Comfortable managing multiple partners and deadlines in parallel
• Hungry to grow, performance-oriented, and comfortable with occasional irregular hours when needed

Nice to have

• Experience with Impact, CJ, ShareASale (or similar platforms)
• Affiliate network relationships / strong partner Rolodex
• Experience in digital media / newsletter monetization
• Comfortable attending industry events

What we offer

• Competitive salary + performance-based bonuses
• 21 paid vacation days + 14 paid sick leaves
• Warsaw office available (hybrid setup)
• A fast-moving, high-performing team with real ownership and growth opportunities

SBC Performance drives scalable growth for brands ready to expand globally.

Working across eCommerce, health & wellness, education, and entertainment, our team helps brands acquire customers faster and scale across 26+ global markets. We combine data-driven paid media, performance creative, and advanced analytics to turn marketing into a predictable revenue engine.
Trusted by 200+ companies, managing $150M+ in ad spend.

Scale faster. Grow smarter.

Now, we’re looking for a Full Stack Engineer to join our AdTech product team. Someone passionate about building scalable, data-driven systems that power performance marketing automation and analytics.

Key Responsibilities:

• Design, build, and maintain frontend and backend services for the internal AdTech platform.
• Develop Angular (v12+) applications with TypeScript, using reactive patterns (RxJS, Angular Material, reactive forms).
• Implement and optimize state management and change detection for high-performance UI.
• Build and maintain Node.js microservices with TypeScript and RESTful APIs.
• Work with PostgreSQL (TypeORM) and Firestore (NoSQL) for data modeling and storage.
• Implement asynchronous patterns, error handling, and background data processing.
• Integrate with Google Cloud Platform (GCP): Cloud Functions, Firestore, Cloud Storage, and Secret Manager.
• Utilize Redis caching, message queues (RabbitMQ / Pub/Sub), and efficient pagination/filtering for large datasets.
• Collaborate with product, analytics, and QA teams to deliver robust, scalable AdTech solutions.

Requirements:

• 3+ years of experience as a Full Stack Engineer
• Experience with Node.js, Angular (v12+), and TypeScript in production environments
• Strong knowledge of RxJS, Angular Material, and reactive forms
• Experience with state management and change detection optimization
• Experience with microservices architecture and RESTful APIs
• Proficiency with PostgreSQL (TypeORM) and Firestore (NoSQL)
• Understanding of asynchronous patterns and error handling
• Experience deploying and managing Cloud Functions (triggers, logs, monitoring)
• Knowledge of Firestore queries, indexing, and data modeling
• Familiarity with Cloud Storage and Secret Manager
• Docker basics for local development and testing
• Experience with message queues (RabbitMQ or Pub/Sub)
• Redis caching and session management
• Handling large datasets (pagination, filtering, sorting)

Nice to Have

• Experience with ad platform APIs (TikTok Business API, Facebook Graph API, Google Ads API)
• Working knowledge of BigQuery for analytics and data aggregation
• Experience building worker pools and parallel processing pipelines
• Familiarity with CI/CD pipelines and deployment automation
• Understanding of AdTech concepts — campaigns, budgets, pixels, conversions
• Experience with high-volume, real-time data systems

What We Offer

• Hybrid job in Prague/Warsaw or remote
• Competitive compensation
• Flexible working hours: we start our operation day between 9:00 — 11:00 CET
• All necessary equipment
• Paid vacation and sick leaves
• Educational support: reimbursement of certification, training, and a knowledge-sharing atmosphere
• Company events and multiple internal activities
• Open feedback and transparent direct communication

ElevateOS integrates with 20+ smart-device ecosystems — keyless entry, locks, cameras, switches, thermostats. Every integration is validated against physical hardware before release. We're hiring the person who owns that entire pipeline: the device lab itself, the test environments and servers behind it, and the integration testing that runs on top.

Who we need: someone technical who can host and run a physical device lab from their home in Kraków — smart locks, cameras, access-control hardware — and also handle the server/networking side so our developers can remotely connect to and test against that hardware.

You'll build and run your own hardware lab — smart locks, cameras, access control systems, and the servers and test environments behind them. Every device integration we ship passes through your hands before it reaches production, and you'll work directly with the development team and CTO with real autonomy: you decide how the lab, its environments, and its tooling evolve. The role spans mobile, backend, networking, and physical hardware — a breadth almost no single position offers. If you're the type who runs a home lab for fun, this is that, with a company budget behind it.

About ElevateOS

ElevateOS has been improving the resident experience for over seven years. We built a single, all-in-one platform that lets property managers and resident staff work together, replacing multiple confusing apps with one intuitive solution. The product is stable, growing, and US-based. Our stack is JavaScript end to end: React, Node.js, and React Native.

What you'll own:

- The physical device lab — smart locks, access-control hardware, cameras, switches — hosted at your home in Kraków. Setup, configuration, firmware updates, troubleshooting, and inventory.

- Test environments and servers — install, configure, and maintain the local and staging environments our integrations run against; adjust configurations live during debugging sessions with developers.

- Lab networking — device connectivity (Wi-Fi, BLE, Zigbee/Z-Wave), router and network configuration, and remote access so the dev team can reach devices and environments from anywhere.

- Integration testing — install iOS/Android builds, run end-to-end tests against physical devices, API testing, reproduce and isolate bugs, verify fixes with the team.

- Documentation — device matrix, environment runbooks, test protocols, and findings.

Requirements:

- Based in or near Kraków — the hardware lives with you; the work is otherwise remote.

- Solid Linux and networking fundamentals: comfortable in a terminal with SSH and logs, and with DNS/DHCP/port-level debugging.

- Experience setting up and maintaining servers or local test environments (Node.js ecosystem and Docker familiarity as a plus).

- Hands-on comfort with hardware, physical devices and space at home to host the lab.

- Able to read code (JavaScript/TypeScript), work with APIs (curl, Postman), and read mobile logs.

- Commercial experience (2+y) in a technical role — engineering, QA, sysadmin/devops, technical support.

- Strong troubleshooting instincts and good English communication.

Nice to have:

Exposure to React Native, Kotlin, or Swift; mobile SDK integrations.

Familiarity with smart locks, access control, or keyless entry ecosystems.

MQTT, webhooks, RTSP/video streaming.

Test automation experience; CI/CD (GitHub Actions).

Practical details:

Company hardware is currently distributed across two locations in Kraków and will be consolidated with you during onboarding.

Occasional in-person device handoffs in Kraków.

We invite Senior Full-Stack Developer with expertise in Go and React to join our team for remote, long-term cooperation.

To help build and scale a next-generation B2C digital platform.

Requirements:

• 3+ years of comprehensive full-stack development experience
• 2+ years experience with Go(Golang) and React.js
• Strong and confident knowledge of TypeScript.
• Proficiency in both SQL and NoSQL database systems
• Upper-Intermediate level of English proficiency (reading, writing, and speaking)
• Remote team members are expected to travel to our EU office from time to time for on-site meetings.
• Proven ability to perform autonomously and collaborate within cross-functional teams
• Responsible approach to assigned tasks and deadlines

We offer:

• Flexible work model allowing remote, on-site, or hybrid options.
• Optional relocation to our EU office, with complete legal support throughout the process.
• Paid vacation and sick leave
• Comprehensive health insurance and sports membership reimbursement
• Reimbursement of necessary transportation expenses
• Friendly and collaborative atmosphere, dedicated mentorship, various performance-based bonuses and company benefits
• Multinational team of expert software engineers
• Free participation in educational programs and professional courses

• English lessons with native-speaking instructors.

   

Further information will be shared at the interview stage.

Kindly add your Telegram username to your CV.

Наш клієнт, Growe, провідна консалтингова компанія та група сервісів у сфері iGaming і розваг. Вони створюють стратегії, що працюють, та рішення, які масштабуються. Поєднуючи стратегічне бачення з практичним досвідом, Growe допомагає бізнесам орієнтуватися в динамічній індустрії, відкривати нові можливості, виходити на нові ринки та досягати сталого зростання.

Ідеально для тих, хто прагне:

• Проєктувати, розробляти та підтримувати масштабовані й надійні пайплайни даних за допомогою Airflow;
• Проєктувати та оптимізувати таблиці й запити в Athena, забезпечуючи високу продуктивність та оптимізацію витрат;
• Розробляти та підтримувати трансформації даних у dbt, створюючи повторно використовувані, тестовані та добре документовані моделі даних;
• Оптимізувати процеси обробки даних з точки зору продуктивності, надійності та ефективності витрат;
• Автоматизувати розгортання та конфігурацію інфраструктури за допомогою Terraform;
• Забезпечувати якість, цілісність і консистентність даних через моніторинг, валідацію, тестування та обробку помилок;
• Співпрацювати з командами Analytics, BI та Engineering для розуміння потреб у даних і розробки ефективних рішень;
• Оперативно виявляти та усувати проблеми з пайплайнами та якістю даних.

Досвід, який стане твоєю перевагою:

• Від 3 років досвіду в Data Engineering, включаючи практичний досвід побудови та підтримки ELT-пайплайнів;
• Сильні знання Python, SQL, включаючи моделювання даних, оптимізацію запитів і продуктивності;
• Практичний досвід роботи з Airflow для оркестрації workflow та розробки DAG;
• Практичний досвід роботи з dbt для трансформації та тестування даних, а також побудови модульних моделей даних;
• Практичний досвід роботи з AWS S3 та Athena, а також хороше розуміння архітектури Data Lake;
• Досвід роботи з Terraform для автоматизації та розгортання інфраструктури.

Ми цінуємо:

• Сильні аналітичні навички, здатність вирішувати складні задачі та увага до деталей;
• Здатність працювати самостійно та водночас ефективно взаємодіяти з командою;
• Проактивність і бажання постійно навчатися та професійно розвиватися.

Наші клієнти пропонують конкурентні переваги для підтримки вашого професійного та особистого зростання, зокрема:

• Орієнтація на здоров’я та добробут;
• Глобальне медичне страхування;
• Можливості для зростання;
• Програми бенефітів (компенсація спорту / стоматології / психолога тощо);
• Бонуси за досягнення результатів;
• Динамічне робоче середовище.

Долучайся — і нехай твоя історія зростання розпочнеться.

English version:

Our client, Growe, is a leading business advisory and services group in iGaming and Entertainment. Сreators of strategies that work and solutions that scale. Combining strategic vision with hands-on expertise, Growe helps businesses navigate the fast-evolving industry, seize new opportunities, enter new markets, and achieve sustainable growth.

Perfect for those who aim to:

• Design, develop, and maintain scalable and reliable data pipelines using Airflow;
• Design and optimize Athena tables and queries, ensuring efficient performance and cost-effectiveness;
• Develop and maintain data transformations in dbt, building reusable, testable, and well-documented data models;
• Optimize data workflows for performance, reliability, and cost-efficiency;
• Automate infrastructure provisioning and configuration using Terraform;
• Ensure data quality, integrity, and consistency through monitoring, validation, testing, and error handling;
• Collaborate with Analytics, BI, and Engineering teams to understand data requirements and deliver effective data solutions;
• Troubleshoot and resolve data pipeline and data quality issues in a timely manner.

Experience you’ll need to bring:

• 3+ years of experience in Data Engineering, with hands-on experience building and maintaining ELT pipelines;
• Strong Python and SQL skills, including data modeling, query optimization, and performance tuning;
• Hands-on experience with Airflow for workflow orchestration and DAG development;
• Practical experience with dbt for data transformation, testing, and modular data modeling;
• Hands-on experience with AWS S3 and Athena, and a solid understanding of data lake architectures;
• Experience with Terraform for infrastructure provisioning and automation.

It’s a perfect match if you have those personal features:

• Strong analytical and problem-solving skills with attention to detail;
• Ability to work independently while collaborating effectively within a team;
• Proactive mindset and willingness to continuously learn and improve.

Our clients offer competitive benefits to support your professional and personal growth, including:

• Health & Wellness Focus;
• Global Medical Coverage;
• Growth Opportunities;
• Benefits Programs (compensation for the gym/stomatology/psychological service & etc.);
• Performance-Driven Rewards;
• Dynamic Work Environment.

Apply, and let your growth journey begin.