Jobs at Djinni

Want to work on technologies used by data platforms at a global scale?

We're looking for Senior and Middle+ Java Engineers to join a long-term cloud data infrastructure project focused on modern Data Lakehouse technologies, distributed systems, and open-source development.

You'll be building integrations between data processing frameworks and cloud services, improving compatibility across the ecosystem, and contributing to technologies that power large-scale analytics platforms. If you enjoy solving complex backend challenges and working close to the open-source community, this role is for you.

What you'll be working on

• Develop new features for large-scale data infrastructure components.
• Build integrations between distributed data processing frameworks and cloud storage services.
• Improve compatibility across modern data processing engines.
• Contribute to high-quality, production-grade backend services.
• Participate in architecture discussions and technical design.
• Collaborate with engineers across international teams and contribute to engineering best practices.

Tech stack

Must have

• Java
• Python (working proficiency)
• Experience with at least one of: Apache Flink, Spark, Kafka, or Apache Beam
• Understanding of Data Lake / Lakehouse architecture
• Experience with Google Cloud Platform (BigLake, GCS, KMS, or related services)

Nice to have

• Apache Iceberg
• Open Source contributions
• Experience with distributed systems
• Cross-system integration experience

What we're looking for

• Strong commercial experience with Java backend development.
• Experience building data-intensive or distributed backend systems.
• Solid understanding of cloud-native architectures.
• Experience working with modern data processing technologies.
• Strong problem-solving skills and ownership mindset.
• Good communication skills and ability to work in a distributed international team.

Working conditions

• 🌍 Remote
• 🌎 Collaboration with US-based engineering teams
• ⏰ Daily overlap by 10:00 AM PST
• 📅 Long-term project
• Flexible working schedule (8-hour workday)

What we offer

• Paid vacation and sick leave
• 11 official public holidays per year
• Personal Career Development Plan (CDP)
• Challenging engineering projects with modern cloud technologies
• Paid external training, conferences, and professional certifications
• Internal tech talks, workshops, and English classes
• Employee support program (healthcare, legal assistance, partner discounts)
• Corporate library with paper and e-books

If you're excited about distributed systems, cloud data platforms, and building software that makes an impact beyond a single product, let's talk!

Apply now or send us a message - we'd love to share more details about the project and see if it's the right fit for you.

Tango is a successful, marketleader, a live-streaming Platform with 450+ Million registered users, in an industry projected to reach $240 BILLION in the next couple of years. 

The B2C platform, based on the best-quality global video technology, allows millions of talented people around the world to create their own live content, engage with their fans and monetize their talents.

Tango live stream was founded in 2018 and is powered by 300+ global employees operating in a culture of growth, learning, and success!

The Tango team is a vigorous cocktail of hard workers, creative brains, energizers, geeks, overachievers, athletes, and more. We push the limits to bring our app from “one of the top” to “the leader”. 

The best way to describe Tango's work style is not to use the word “impossible”. And we believe that success is a thorny path that runs on sleepless nights, corporate parties, tough releases, and of course our users' smiles (and as we are a LIVE app, we truly get to see our users all around the world smiling right in front of us in real-time!).  

Responsibilities

• Development and support of SPA on ReactJS: web version mobile-first of a high-load application, admin panels for internal use, and marketing pages
• Collaborate with other teams to effectively meet the product and technical needs of the project
• Proactively participate in improvements and existing solutions tuning
• Share expertise and knowledge with your teammates

Requirements

• At least 7 years of commercial experience in development in JS (ES6+)/Typescript
• Strong knowledge of CSS, HTML5, SASS, Jest
• At least 2 years of commercial experience in development in with ReactJS version 16+ (hooks)
• Experience with state management frameworks: Redux and Redux toolkit preferred
• Intermediate English

What we offer:

• International company with several offices in different locations : Tel-Aviv, Kyiv, Warsaw, Limassol.
• Granting an Option;
• A professional environment with great people to work with;
• Competitive salary, performance review;
• Flexible working hours, no one here tracks your work time because our culture is built on trust and cooperation;
• Social package, including sports coverage, elite medical insurance for you and family;
• 20 working days paid vacation and 100% sick leaves coverage;
• Opportunities to make a difference, to develop and grow;
• Regular corporate celebrations, team buildings and fun activities;
• Comfortable office close to the metro station. Our Kyiv office is open 24/7 with all safety and health measures in place.

About the Client

Our client, Rezono, is a performance marketing agency and a trusted partner of leading advertising platforms, including Meta, TikTok, Google, Snapchat, and NewsBreak. The company helps advertisers, publishers, and media buying teams scale their campaigns by providing platform expertise, premium account solutions, and dedicated support across multiple industries and markets.
 

About the Role

Our client is looking for a Strategic Business Development Manager to own and develop relationships with key advertising platforms. The successful candidate will be responsible for strengthening existing partnerships, negotiating better commercial terms, unlocking exclusive platform opportunities, and driving long-term business growth.
 

Key Responsibilities

• Build and maintain strategic relationships with Meta, TikTok, Google, and other advertising platforms
• Negotiate rebates, credit lines, payment terms, and other partnership benefits
• Secure access to beta programs, exclusive features, and dedicated platform support
• Manage partnership escalations and represent the agency in strategic discussions
• Collaborate with internal teams to maximize platform performance and business results
   

Requirements

• Experience managing strategic partnerships with major advertising platforms, including Meta or TikTok
• Proven experience negotiating commercial partnership terms and building long-term business relationships
• digital advertising / affiliate marketing ecosystems
• Strong communication and stakeholder management skills
• Fluent English
   

Nice to Have

• Chinese language proficiency
• Existing relationships with platform partner managers
• Experience working with additional advertising platforms such as Google, Snapchat, or NewsBreak
   

What Rezono Offers

• 100% remote job
• Flexible types of contract
• Profit-sharing bonus based on personal performance
• Opportunity to shape processes from an early stage
• Collaborative and transparent working environment
• Comprehensive benefits package
• Business trips to meet platform partners and attend industry events

About us:
 

BetterMe — a global wellness ecosystem empowering millions to become better — physically, mentally, and emotionally. We build what makes people better and keep challenging ourselves to inspire others.

About the role:
 

We're looking for a Graphic Designer with a strong eye for visual trends and the ability to transform ideas into compelling, aesthetically refined designs. Working closely with our Marketing team, you'll create high-performing visual content for digital advertising and other marketing initiatives.
 

Your impact:
 

• Design engaging creatives for digital advertising channels.
• Create visually impactful concepts and compelling visual stories.
• Collaborate with the Creative and Marketing teams to develop content ideas.
• Contribute fresh ideas, share knowledge, and help elevate the team's creative standards.
   

About you:
 

• 1+ years of experience in graphic design.
• Strong proficiency in Adobe Illustrator and Adobe Photoshop.
• A portfolio showcasing completed projects and creative thinking.
• Excellent understanding of composition, color, typography, and visual hierarchy.
• Ability to work across different visual styles and experiment with new approaches.
• Proactive mindset and strong attention to detail.
   

Nice to have:
 

• Experience in fashion, e-commerce, or related industries.
• Experience using AI-powered image generation tools.
• Experience with Figma.
   

What you get at BetterMe:
 

A mission that inspires. Every line of code, every design, every idea helps millions of people become healthier and more confident.
Trust without micromanagement. You manage your time and make decisions independently. We value outcomes, not online hours.
Growth opportunities. There’s space for initiative, new responsibilities, and real career upgrades.
Open communication. Transparency across teams, honest feedback, and support for initiatives are part of our everyday culture.
An ambitious environment that gets recognized. Over the past two years, the BetterMe team has doubled in size, and we were named among Forbes’ Top 10 Best Places to Work in 2026.

Who we are

We are an AI startup that develops practical software solutions for businesses. We work with AI, large language models, and modern cloud technologies to build tools that improve business processes, streamline operations, and solve real-world problems.

About the Role 
We are looking for a driven and self-motivated Lead Generation/Client Acquisition Specialist to join our team. Your primary mission is simple: find and close new B2B clients who need custom software development or IT services. You will be the bridge between companies with technology challenges and our expert delivery team.

This is a commission-only role, meaning your earnings are directly tied to your results. High performers can expect significant income with no ceiling on what they can earn. We work under an official contractor agreement, with commission terms clearly defined from the start.

What You Will Do
- Identify and prospect potential B2B clients across the European Union through LinkedIn, cold outreach or any other suitable source.
- Qualify leads and understand their software/IT needs
- Present our services and propose solutions in collaboration with our technical team
- Negotiate and close project contracts
- Hand off signed clients smoothly to the project delivery team
- Maintain a pipeline of prospects and report on activity regularly
- Build long-term relationships with clients to generate repeat business and referrals

What We Are Looking For:
- Proven experience in B2B sales, business development, or client acquisition
- Strong communication and negotiation skills
- Ability to understand technical concepts and explain them in simple terms
- Self-starter mentality — comfortable working independently
- Professional-level English (additional languages are a plus)

- Experience working with LinkedIn, Upwork or similar platforms

Nice to have:
- Background in IT, software, or SaaS industry sales
- Existing network of EU-based businesses

- Familiarity with CRM tools

Why Join Us
- No income ceiling — the more you close, the more you earn
- Full flexibility — work when and how you want
- Strong technical team behind you to support pitches and proposals
- Transparent commission structure with prompt payouts

We are looking for a Flutter Developer who is not afraid of challenges and is ready to join our team of professionals working on an exciting product.

This is a freelance part-time position with an expected workload of up to 20 hours per week (with occasional increases depending on project needs).

DARLY SOLUTIONS is an international IT company specializing in delivering innovative solutions across FinTech, MedTech, SaaS, etc.

With years of experience in web and mobile development, UI/UX design, Quality Assurance, AI, and machine learning, we pride ourselves on creating impactful products that drive success for our clients.Since 2018, we have successfully completed over 250 projects.

Examples of our work across various domains can be found on our website - https://www.darly.solutions/

We leverage cutting-edge technologies to craft powerful, forward-thinking solutions tailored to our clients’ needs. Our team is proficient in a diverse range of tools, including Angular, NestJS, React, Vue, PHP, Ruby, NodeJS, and many others.

Hiring process: Intro call with a Recruiter — Technical interview — PM interview — Offer
 

Requirements:

• 3+ years of experience with Flutter (mobile and web).
• Experience with BLoC state management
• Experience working with REST APIs
• Ability to understand and work with existing codebases
• Strong problem-solving and analytical skills
• Responsible, proactive, and detail-oriented
• Good communication skills
• Open-minded and adaptable, eager to embrace new ideas, technologies, and approaches

• Upper-Intermediate (B2) level of English.

   

Responsibilities:

• Development of new features and improvements
• Bug fixing and maintenance of existing functionality
• Participation in technical investigations and solution design
• Development testing
• Communication with PM, QA, Designer, and Client
• Performance optimization and code quality improvements

• Supporting application stability and scalability

   

Tech Stack: Flutter/BLoC/REST API/Firebase/ Sentry
 

We are looking for a strategic and commercially driven Product Manager to lead the development and success of our iGaming slot portfolio. You will own the product vision from concept to launch, working closely with business stakeholders, sponsors, designers, mathematicians, artists, developers, and casino operators to create engaging and commercially successful slot games.

The ideal candidate has a strong understanding of the iGaming market, slot mechanics, player behavior, and the game development lifecycle, combining market insight with data-driven decision making.

What You'll Do

• Define the product vision, strategy, roadmap, and game concepts for new slot titles.
• Collaborate with business stakeholders, sponsors, and cross-functional teams to define game mechanics, themes, and visual direction.
• Align product priorities with executive strategy by maintaining regular communication with Sponsors, the CEO, and senior stakeholders
• Work closely with Game Production and Commercial teams throughout the development lifecycle.
• Prioritize product initiatives based on market trends, business goals, player feedback, and commercial opportunities.
• Monitor game performance using analytics, tracking KPIs such as GGR, Bet Count, RTP, Retention, Session Length, and Feature Engagement, and drive continuous product improvements.
• Partner with Casino Managers and Commercial teams to gather market feedback, align product strategy with operator needs, and maximize game performance.
• Present upcoming and released games to casino operators, aggregators, and strategic partners, showcasing game features and commercial value.
• Prepare and deliver regular product updates, roadmap reviews, and KPI reports to Sponsors and the CEO, highlighting progress, risks, and strategic recommendations.

Who You Are

• 3+ years of experience as a Product Manager within the iGaming industry.
• Strong understanding of slot mechanics, RTP, volatility, player psychology, and monetization.
• Strong analytical skills with experience using product analytics and BI tools.
• Excellent communication, presentation, and stakeholder management skills.
• Comfortable working in an Agile environment and managing multiple projects simultaneously.
• Passion for creating engaging, innovative, and commercially successful slot games.

Extra Points For

• Experience managing a portfolio of iGaming slot games.
• Experience presenting products to casino operators or at industry events.
• Knowledge of regulated markets, certification processes, and operator requirements.
• Leadership experience and mentoring cross-functional teams.

Join Sigma Software as a Senior Test Engineer and help shape the quality of a cutting-edge social shopping platform that blends e-commerce with social networking. This role offers the opportunity to work on a high-impact product used by millions of fashion lovers worldwide.
 

You will be part of our Mobile & Web Solutions department, collaborating with talented professionals and applying the Quality Assistance model to ensure exceptional user experiences.

We at Sigma Software value innovation, teamwork, and professional growth. By joining us, you will gain access to diverse projects, supportive colleagues, and a culture that rewards initiative and expertise.
 

Customer

Global marketplace for fashion, combining e-commerce with social networking features. It enables users to sell customized or rare clothes and accessories, promoting sustainable consumption by recycling unwanted items for money.
 

Project

The project is a social shopping platform where users create profile pages to post pictures and descriptions of items for sale, enhanced with hashtags for easier discovery. Focused on clothes retail, it aims to deliver an evocative buying and selling experience. Key tasks include payment system integration and accessibility feature implementation.

 

Requirements

• 4,5+ years of QA experience with end-to-end ownership of testing processes
• Strong exploratory testing skills beyond scripted test cases
• Experience testing mobile apps (iOS and Android), including release processes
• Ability to work autonomously across multiple cross-functional teams
• Familiarity with agile workflows, feature flags, and staged rollouts
• Strong requirements analysis skills, able to clarify edge/corner scenarios
• Comfortable with context switching and supporting multiple teams in parallel
• SQL — ability to write moderately complex queries
• API Testing — hands-on experience with REST APIs using tools like Postman
• Solid understanding of HTML, CSS, cookies, caching, browser behavior
• Experience deploying builds via Android Studio, Xcode, or similar tools
• Git — practical experience with branches, commits, code reviews, pull/merge requests
• Upper-Intermediate+ English proficiency
   

Responsibilities

• Work as part of the product development team, collaborating closely with customer-side developers
• Follow and support the Quality Assistance process
• Plan and estimate testing activities
• Create and maintain test documentation
• Design and execute manual, snapshot, and UI tests for new features
• Perform Functional, Regression, and Compatibility testing across Web and Mobile platforms
• Conduct release validation, smoke testing, and post-deployment quality checks
• Provide clear and regular status and progress reports
• Collaborate with product owners, business analysts, and development teams to ensure product quality
• Identify, document, and communicate risks and issues constructively

🔹 Lead stability, scalability, and operational excellence at scale.

Softsich is a young and ambitious international product tech company that develops scalable B2B digital platforms. We’re on the lookout for an experienced Lead DevOps who’s ready to grow with us and shape high-load, data-driven solutions used by international partners.
 

Your key responsibilities will include:

– Owning and managing cloud infrastructure across production, staging, and development environments.
– Designing, implementing, and maintaining CI/CD pipelines and deployment automation.
– Ensuring production stability, high availability, and scalability of all platform services.
– Configuring and maintaining monitoring, alerting, and observability tooling.
– Leading incident response for infrastructure-related issues and driving post-incident reviews.
– Planning and executing capacity management to support platform growth.
– Optimizing infrastructure costs: tracking spend, eliminating waste, right-sizing resources.
– Maintaining disaster recovery procedures, runbooks, and on-call readiness.
– Coordinating with development teams on infrastructure requirements and service dependencies.
– Managing developer tooling and internal platform services to support engineering productivity.
– Ensuring security best practices and compliance requirements across infrastructure.
– Continuously improving deployment processes, reliability, and operational efficiency.
– Leading, mentoring, and growing a team of infrastructure engineers.
– Validating and challenging technical estimates to ensure realistic commitments and early risk visibility.
– Reviewing team output for quality, completeness, and alignment with technical standards.
 

It’s a match if you have:

– 5+ years of experience in infrastructure, DevOps, or platform engineering roles, including at least 2 years in a lead or senior position.
– Strong hands-on experience with AWS (EC2, RDS, S3, ECS/EKS, Lambda, VPC, IAM, CloudFront, Route53, ElastiCache, SQS/SNS).
– Experience with AWS Organizations (multi-account management, SCPs, consolidated billing).
– Proficiency with Infrastructure as Code tools (Terraform, Ansible).
– Deep knowledge of Docker and Kubernetes (autoscaling, network policies, cluster management).
– Experience with Helm, ArgoCD (GitOps workflows), GitLab CI or GitHub Actions.
– Strong monitoring expertise (Datadog, Prometheus, Grafana, ELK, PagerDuty, JSM).
– Experience with Cloudflare (CDN, WAF, DDoS mitigation, Zero Trust).
– Solid networking fundamentals (DNS, ALB/NLB, VPN, VPC peering, firewalls).
– Strong security practices (IAM, Secrets Manager/Vault, CSPM, patch management, compliance readiness).
– Experience with high-load systems, load testing (k6, Locust, Gatling), capacity planning.
– Experience with databases (RDS PostgreSQL/MySQL, DocumentDB, Redshift, Redis/ElastiCache, Kafka).
– Strong Linux administration and scripting skills (Bash, Python).
– Proven ability to mentor engineers and validate technical estimates.
– Strong communication skills and ability to proactively surface risks.
 

What we offer:

– Flexible schedule and remote format or offices in Warsaw.
– 24 paid vacation days, sick leaves, and health insurance (UA-based, other locations in progress).
– A supportive, friendly team where knowledge-sharing is part of the culture.
– Coverage for professional events and learning.
– Birthday greetings, team buildings, and warm human connection beyond work.
– Zero joules of energy to the aggressor state, its affiliated businesses, or partners.

You see infrastructure not as a support function, but as a strategic driver of business stability and growth?


Send over your CV now — we’d love to get to know you better!

Who we are:
Selesa offers IT outsourcing, specialist out-staffing, and project management services to enhance business operations. We focus on providing skilled professionals for IT needs, including development, security consulting, and business development. Selesa also manages sales, account management, and human resources to support company growth. Our services are known for efficiency, quality, and strong communication, making us a trusted partner for businesses looking to streamline and secure their IT infrastructure. Originated in Vilnius, Lithuania, we cater to global clients.

Who we are looking for:

We are looking for a Level 2 Support Specialist to act as the technical bridge between customer-facing Level 1 agents and Level 3 team, responsible for investigating and resolving complex issues in integrations with partners, payments, bonus malfunctions, and other platform issues. s.

Responsibilities

• Resolve complex technical incidents related to games, transactions processing, API requests
• Perform root cause analysis,prepare incident reports, escalate to L3 or dev team
• Manage second line investigation of issues and testing of newly released games 
• Perform detailed testing of the integrations with providers and operators
• Analyze logs and metrics to identify failures or anomalies
• Gather client requirements to coordinate with team
• Provide help to customer inquiries
• Coordinate the communication flow between L1 and L3 teams for escalated issues.
• Handle client escalations by updating status flags, escalating to L3.
• Identify and troubleshoot different types of APIs and customer integrations issues
• Maintain internal documentation

Requirements:

• Excellent communication skills
• Good knowledge of ticketing systems
• General understanding of client-server architecture
•  iGaming-specific knowledge would be a plus
• 2+ years of experience in Customer or Technical Support
• Strong analytical and troubleshooting mindset
• Expertise with documenting processes and knowledge
• Proficiency in English
• Strong attention to detail and teamwork skills
• Ability to meet deadlines in a fast-paced environment

What we offer:

• Fully remote position with a flexible schedule
• Long-term opportunity with potential for financial and career advancement

• Supportive and positive work culture, collaborating with like-minded teammates

   

When submitting your application, please make sure to include your responses to the following screening questions in your COVER LETTER:

1. Please explain to us your level of spoken/written English. Just rank it from 1 to 10, where 10 means a Native Speaker; 8-9 means a Near Native Speaker; 6-7 means Fluent Speaker; under 6 any further levels.
2. Can you share examples from your portfolio that showcase your Level 2 Support experience?
3. What are your monthly salary expectations for a long-term, full-time position (if we consider 40 hours a week)?
4. What is your notice period and how soon can you join ?

Help Us Bring a New Music Product to the World

We're building an innovative music hardware product and looking for a Middle or Senior Product Marketing Manager to help shape its brand, positioning, and go-to-market strategy.

We're not looking for someone to market an existing product. We're looking for someone who wants to help build the brand, the community, and the go-to-market strategy from the ground up.

This is a part-time, fully remote, long-term role with flexible working hours.

Responsibilities

• Develop and execute the product marketing strategy.
• Define product positioning and messaging.
• Work closely with the founder on product development and launch.
• Research the market, competitors, and customer needs.
• Build relationships with musicians, creators, and early adopters.
• Plan and coordinate marketing campaigns and product launches.
• Help grow an engaged community around the product.

We're Looking For Someone Who

• Has 3+ years of experience in Product Marketing, Brand Marketing, Growth Marketing, or Go-to-Market roles.
• Has experience marketing physical consumer products, gadgets, electronics, or other hardware products.
• Has a genuine passion for music and either plays at least one musical instrument or is actively involved in making music.
• Speaks English confidently.
• Enjoys working independently and taking ownership.

Nice to Have

• Experience with music technology or audio products.
• Experience launching new products or hardware startups.
• Community building, creator marketing, or crowdfunding experience.

We'd Love to Hear From

• Product marketers with experience promoting innovative hardware products.
• Musicians who have moved into product marketing.

What We Offer

• Fully remote work.
• Flexible part-time schedule.
• Direct collaboration with the founder.
• Opportunity to shape the product and its marketing from day one.
• Long-term collaboration with significant ownership and creative freedom.

About the Company:
 

We are an international iGaming startup operating in Tier-1 markets (DE, AU) with large advertising budgets. As part of expanding our performance marketing department, we are looking for a Senior Media Buyer who will be responsible for efficient traffic acquisition, consistent growth of key performance metrics, and the systematic development of the company’s advertising channels.
 

Responsibilities:

• Launch, manage, and scale advertising campaigns in Facebook Ads (Gambling / iGaming);
• Work with Tier-1 GEOs (DE, AU);
• Search for, test, and scale effective combinations (creatives, offers, landing pages, funnels);
• Optimize advertising campaigns based on ROI, CPA, and LTV metrics;
• Analyze performance, work with analytics tools, pixels, events, and attribution systems;
• Develop hypotheses and run A/B tests;
• Collaborate with the creative and product teams;
• Monitor profitability and scale successful strategies.
   

Requirements:

• At least 2 years of experience as a Media Buyer (mandatory in Gambling / iGaming);
• Proven experience working with Tier-1 GEOs (DE, AU, etc.);
• Strong expertise in Facebook Ads and campaign scaling strategies;
• Solid analytical skills and experience working with key metrics (ROI, CPA, LTV, CR);
• Understanding of funnels, offers, creatives, and hypothesis testing approaches;
• English level B2 or higher;
• Self-driven, responsible for results, and performance-oriented.
   

What We Offer:

• Fixed salary starting from $1,500 + performance-based bonuses (final conditions discussed individually);
• Fully remote work format;
• Work with Tier-1 markets and large advertising budgets;
• International team and modern tools;
• Opportunities for professional and financial growth;
• Participation in the development and scaling of the company’s products.

🔹 Lead stability, scalability, and operational excellence at scale.

Softsich is a young and ambitious international product tech company that develops scalable B2B digital platforms. We’re on the lookout for an experienced DevOps Lead/Head who’s ready to grow with us and shape high-load, data-driven solutions used by international partners.

 

Your key responsibilities will include:

– Owning and managing cloud infrastructure across production, staging, and development environments.
– Designing, implementing, and maintaining CI/CD pipelines and deployment automation.
– Ensuring production stability, high availability, and scalability of all platform services.
– Configuring and maintaining monitoring, alerting, and observability tooling.
– Leading incident response for infrastructure-related issues and driving post-incident reviews.
– Planning and executing capacity management to support platform growth.
– Optimizing infrastructure costs: tracking spend, eliminating waste, right-sizing resources.
– Maintaining disaster recovery procedures, runbooks, and on-call readiness.
– Coordinating with development teams on infrastructure requirements and service dependencies.
– Managing developer tooling and internal platform services to support engineering productivity.
– Ensuring security best practices and compliance requirements across infrastructure.
– Continuously improving deployment processes, reliability, and operational efficiency.
– Leading, mentoring, and growing a team of infrastructure engineers.
– Validating and challenging technical estimates to ensure realistic commitments and early risk visibility.
– Reviewing team output for quality, completeness, and alignment with technical standards.

It’s a match if you have:

– 5+ years of experience in infrastructure, DevOps, or platform engineering roles, including at least 2 years in a lead or senior position.
– Strong hands-on experience with AWS (EC2, RDS, S3, ECS/EKS, Lambda, VPC, IAM, CloudFront, Route53, ElastiCache, SQS/SNS).
– Experience with AWS Organizations (multi-account management, SCPs, consolidated billing).
– Proficiency with Infrastructure as Code tools (Terraform, Ansible).
– Deep knowledge of Docker and Kubernetes (autoscaling, network policies, cluster management).
– Experience with Helm, ArgoCD (GitOps workflows), GitLab CI or GitHub Actions.
– Strong monitoring expertise (Datadog, Prometheus, Grafana, ELK, PagerDuty, JSM).
– Experience with Cloudflare (CDN, WAF, DDoS mitigation, Zero Trust).
– Solid networking fundamentals (DNS, ALB/NLB, VPN, VPC peering, firewalls).
– Strong security practices (IAM, Secrets Manager/Vault, CSPM, patch management, compliance readiness).
– Experience with high-load systems, load testing (k6, Locust, Gatling), capacity planning.
– Experience with databases (RDS PostgreSQL/MySQL, DocumentDB, Redshift, Redis/ElastiCache, Kafka).
– Strong Linux administration and scripting skills (Bash, Python).
– Proven ability to mentor engineers and validate technical estimates.
– Strong communication skills and ability to proactively surface risks.

Nice to have:

– Experience in regulated or high-availability environments.

What we offer:

– Flexible schedule and remote format or offices in Warsaw.
– 24 paid vacation days, sick leaves, and health insurance (UA-based, other locations in progress).
– A supportive, friendly team where knowledge-sharing is part of the culture.
– Coverage for professional events and learning.
– Birthday greetings, team buildings, and warm human connection beyond work.
– Zero joules of energy to the aggressor state, its affiliated businesses, or partners.

You see infrastructure not as a support function, but as a strategic driver of business stability and growth?
 

Send over your CV now — we’d love to get to know you better!

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.

We are looking for a creative and passionate Slot Game Designer to join our team and help build engaging, high-performing slot games enjoyed by players worldwide.

If you’re excited about creating memorable gameplay, designing innovative mechanics, and collaborating with talented professionals across product, math, art, and development, we’d love to hear from you.

What you’ll do

• Design slot game concepts from idea to release.
• Create engaging game mechanics, bonus features, progression systems, and player flows.
• Prepare clear Game Design Documents (GDDs), feature specifications, and gameplay documentation.
• Work closely with Product Managers to define game themes, target audiences, and unique game concepts.
• Collaborate with Mathematicians to ensure mechanics align with RTP, volatility, and the desired player experience.
• Partner with Artists, Animators, Sound Designers, and Developers to bring game ideas to life.
• Balance gameplay while considering player engagement, business goals, and technical requirements.
• Analyze market trends, competitor products, and player behavior to develop fresh game ideas.
• Review game implementations throughout development to ensure the final product matches the original vision.

What we’re looking for

• 2+ years of experience as a Game Designer in the iGaming industry.
• Strong knowledge of slot mechanics, including paylines, cascades, clusters, free spins, bonus features, RTP, volatility, and player engagement.
• Experience creating Game Design Documents and gameplay specifications.
• Excellent communication skills and the ability to collaborate effectively with cross-functional teams.
• Analytical mindset with a passion for creating entertaining and commercially successful games.
• Experience working in Agile development environments.

Nice to have

• Experience designing and launching successful slot games.
• Understanding of slot mathematics and experience working alongside game mathematicians.
• Knowledge of UI/UX principles, onboarding, and player retention mechanics.
• Familiarity with certification processes and regulated gaming markets.
• Genuine interest in industry trends and innovative slot mechanics.

What we offer

• The opportunity to work on original slot games from concept to launch.
• A collaborative team of experienced game designers, mathematicians, artists, and developers.
• Freedom to propose ideas and influence game design decisions.
• Professional growth in a fast-paced and product-focused environment.
• Competitive compensation and a supportive workplace where creativity is valued.