Jobs at Djinni

🚀 About the role

We are looking for a Media Buyer (Push / Pop / In-App Traffic) to scale utility mobile applications across Push, Popunder, In-App and performance traffic networks.

You will be responsible for launching, optimizing, and scaling campaigns with a strong focus on profitability, creative testing, funnel optimization, and sustainable volume growth.
 

⚡ Responsibilities

• Launch and scale campaigns across Push, Popunder, In-App and Native traffic sources
• Manage and optimize traffic from networks such as RichAds, PropellerAds, RollerAds, EvaDav, AdMaven, Zeropark, Clickadu and similar platforms
• Build and optimize funnels (Ad → Store Page / Web Funnel → Subscription → Purchase)
• Generate and test hypotheses for creatives, angles, audiences and placements
• Manage budgets and optimize campaigns towards CPA, ROI and ROAS targets
• Analyze campaign performance metrics (CTR, CPC, CPI, CPA, ROAS, Retention, LTV)
• Collaborate with designers to produce and iterate creatives at scale
• Test new GEOs, networks, placements and bidding strategies
• Identify winning setups and scale them while maintaining profitability
• Monitor traffic quality, fraud indicators and campaign stability
   

✅ Requirements

• 2–3+ years of experience with Push, Pop, In-App or Native traffic sources
• Strong understanding of performance marketing principles and mobile acquisition funnels
• Experience working with utility, VPN, cleaner, security or subscription-based applications
• Experience with tracking platforms such as:
  • Voluum
  • Binom
  • RedTrack
  • Keitaro
• Knowledge of attribution and analytics tools:
  • AppsFlyer
  • Adjust
  • Firebase
  • Google Analytics
• Proven ability to scale campaigns profitably
• Strong analytical and data-driven mindset
• Experience working with Tier-1 GEOs (US, CA, UK, AU) is preferred
• English level B1+
   

🔥 Nice to have

• Experience with iOS subscription apps
• Experience with utilities, VPN, AI apps or mobile SaaS products
• Knowledge of anti-fraud solutions and traffic quality monitoring
• Experience running campaigns on Moloco, DSPs or OEM traffic sources
• Understanding of App Store Optimization (ASO) fundamentals
• Basic creative strategy and copywriting skills
   

🎯 KPIs

• ROI / Profitability
• CPA stability

• Spend scaling

   

🎁 We offer

• Fully remote work
• Fast execution and minimal bureaucracy
• Access to substantial advertising budgets
• Opportunity to work on utility apps with global reach
• Freedom to test new traffic sources and strategies
• Growth path to Senior Media Buyer, Team Lead or Head of Acquisition roles

We are the creators of a new fintech era!
Our mission is to revolutionize the world by making blockchain technology accessible to everyone in everyday life. WhiteBIT is a global team of more than 1,200 professionals united by a shared vision of shaping the Web3 future.
We are building our own blockchain ecosystem, ensuring maximum transparency and security for over 8 million users worldwide. Our cutting-edge solutions, rapid adaptation to market challenges, and technological excellence set us apart from traditional companies.
Our official partners include the National Football Team of Ukraine, FC Barcelona, Lifecell, FACEIT, and VISA.

The future of Web3 starts with you — join us as Liquidity Manager!

Requirements:

- Bachelor’s or Master’s degree in Finance, Computer Science, Quantitative Finance, or related fields.
- 2+ years of experience in market-making, liquidity provision or quantitative trading, preferably in crypto markets, derivatives, or high-frequency trading.
- Deep understanding of trading systems, market microstructure, order book dynamics, and end-to-end execution workflows.
- Proficiency in designing and implementing trading strategies and algorithms, including hedging, market making, and arbitrage strategies.
- Experience with monitoring and analytics tools (e.g., Grafana, Tableau, custom dashboards)
- Ability to work in high-pressure, fast-moving environments, make data-driven decisions, manage multiple strategies simultaneously
- Solid understanding of risk management and operational workflows; experience designing processes to improve efficiency, control, and decision-making.
- Strong analytical and problem-solving skills, with ability to adapt strategies to rapidly changing market conditions.

Responsibilities:

- Support liquidity business development;
- Work with Ops, Risk, Engineering teams to build and continuously improve trading and risk management tools;
- Monitor liquidity metrics and trading strategies and optimize performance;
- Actively contribute to the growth and optimization of the liquidity business by identifying issues, proposing solutions, and implementing improvements.
- Analytics and innovation support.

Working conditions:

Immerse yourself in Crypto & Web3:
— Master cutting-edge technologies and become an expert in the most innovative industry.
Work with the Fintech of the Future:
— Develop your skills in digital finance and shape the global market.
Take Your Professionalism to the Next Level:
— Gain unique experience and be part of global transformations.
Drive Innovations:
— Influence the industry and contribute to groundbreaking solutions.
Join a Strong Team:
— Collaborate with top experts worldwide and grow alongside the best.
Work-Life Balance & Well-being:
— Modern equipment.
— Comfortable working conditions and an inspiring environment to help you thrive.
— 24 calendar days of paid leave.
— Additional days off for national holidays.

• Project Description:

  We are looking for an HR Administration / HR Operations Specialist to join the Talent Acquisition & Management Shared Services Center (TAM SSC). This role is focused exclusively on HR administrative processes throughout the employee lifecycle and does not include recruitment, talent acquisition, HR business partnering, or employee relations responsibilities.

  
  Our team: a cross-regional and cross-cultural team of ~20 people based in 3 countries (Ukraine, Serbia, India).

  
  Technologies used: MS Excel as the main tool, MS Word, MS PowerPoint, and Internal Systems.

   

• Responsibilities:

  • Qualified HR services implementation for employees in different regions (countries) of DXC Luxoft presence.
  • Support, organization, and performing of different types of HR personnel processing in foreign company's locations (onboarding, transfers, vacations, sick leaves, terminations) - (there is specially prepared good supervision program for newly hired employees to teach and help them to cope with subtle details of international personnel processing).
  • Employees' files handling in internal informational systems.

   

• Mandatory Skills Description:

  • 1+ year of experience in HR Administration, HR Operations, Personnel Administration, HR Shared Services, or Employee Lifecycle Administration.
  • Knowledge of MS Excel, experience in preparation of presentations in MS PowerPoint as well as working knowledge of MS Outlook and MS Word.

  • Fluent English (written/spoken).
  • Proactive, well-organized, and result-oriented person.
  • Mature personality, excellent communication, and organization skills.
  • Strong task management.
  
  Please note: This position is not suitable for candidates whose experience is primarily in HR Business Partnering, Recruitment, Talent Acquisition or Employer Branding.

About Us

ODD Systems is a Ukrainian defense-tech company that transforms engineering innovation into solutions for national defense. Our mission is to create the weapons of the future—technologies that save lives and restore justice.

Our products — the Kurbas thermal imaging cameras and the Stus, Lupynos, and Horska FPV drones—are named after prominent figures of the “Executed Renaissance” and the “Sixtiers” movement. Their names, once synonymous with the struggle for Ukrainian identity, now protect our country on the battlefield.

Purpose of the Role: this isn’t a paperwork HR role. You will have a seat at the table, working directly with leadership to shape how our company grows. You’ll have the autonomy to experiment with new engagement formats, influence the organizational structure, and see the direct impact of your work on the team’s success.

Experience and skills we are looking for:

• The People/Business Partner: You have 3+ years of experience as an HR Manager or People/Business Partner, preferably in a start-up, fast-paced environment.
• The Strategist: You don’t just feel that the mood is low — you use data, surveys, and hypotheses to prove it and find a solution.
• Communication Pro: You are comfortable talking to people at all levels and have experience navigating tough conversations.

• Process Builder: You love creating order out of chaos and have a track record of building people processes from the ground up.

   

Key Responsibilities:

• Full Cycle Employee Management
  Owning the entire employee lifecycle of a dedicated team: from a smooth onboarding experience to impactful development plans and offboarding.
  Acting as the primary point of contact for employees, providing guidance on growth, internal policies, and company culture.
• Performance & Talent Development
  Partnering with team leads to conduct regular performance reviews, identify high-potential talent, and address growth areas.
  Supporting managers in handling complex cases, conflict resolution, and feedback loops.
• Retention & Team Climate
  Monitoring team health through regular 1-on-1s, eNPS surveys, and pulse checks.
  Identifying risks and implementing retention strategies based on data-driven insights.
  Managing organizational changes, including team restructures and role definitions.

• Strategic HR Initiatives
  Building and launching new HR processes from scratch aligned with company OKRs.
  Analyzing HR metrics (turnover, engagement) to propose and execute improvements.

   

It’s a plus if you have:

Preferably experience in a start-up, fast-paced environment.

Why Choose Us?

• Work that has a real impact. We build products that directly strengthen Ukraine’s defense capabilities.
• Opportunity to work alongside top-tier engineers in MilTech and autonomous systems.
• Official employment under the Diia.City legal framework.
• The possibility of reservation (deferment) for conscripts in accordance with the requirements of current legislation.
• Annual paid leave — 24 calendar days.
• Additional paid leave for veterans — 14 calendar days.
• Paid sick leave in accordance with the law.
• Voluntary health insurance upon successful completion of the probationary period.

• Possibility of reimbursement for training costs according to internal company policies.

   

We are not just looking for employees, but for like-minded individuals who share our values and are ready to build the future of Ukrainian MilTech.

We are seeking an experienced Senior Data Engineer to help build and scale modern data platforms that power analytics, reporting, and data-driven decision-making. In this role, you will work with cloud-based data ecosystems, leveraging Databricks and Spark technologies to process large volumes of data and deliver high-performance solutions across the organization.

You'll collaborate closely with engineering teams, analysts, and business stakeholders to design robust data architectures, improve data reliability, and support mission-critical initiatives.

Key Responsibilities

• Design, develop, and maintain scalable data pipelines and processing frameworks.
• Create and optimize ETL/ELT workflows for efficient data ingestion and transformation.
• Work with high-volume datasets in distributed computing environments.
• Develop data models, transformation logic, and integrations across multiple systems.
• Partner with cross-functional teams to understand data requirements and deliver reliable solutions.
• Monitor and improve data quality, platform performance, and operational stability.
• Contribute to architecture decisions and implement data engineering best practices.
• Support cloud-based data infrastructure and continuous improvement initiatives.

Required Qualifications

• 7+ years of professional experience in Data Engineering.
• Proven hands-on expertise with Databricks in production environments.
• Strong experience with Apache Spark and PySpark.
• Advanced SQL skills with a focus on performance optimization.
• Solid background building and maintaining ETL/ELT processes.
• Strong Python development experience.
• Experience working with large-scale data processing and analytics platforms.
• Hands-on experience with at least one major cloud provider (AWS, Azure, or GCP).
• Professional proficiency in both English (C1) and Russian (C1).
• Strong problem-solving skills and ability to work independently in a remote environment.

Contract Details

• Full-time engagement under a B2B agreement.
• Long-term, open-ended collaboration.
• Monthly gross compensation.
• Payments made to the contractor's registered business account (FOP / Sole Proprietorship / equivalent).
• Contractor is responsible for managing and paying their own taxes.
• Standard 8-hour workday.
• 30-day notice period.

Nice to Have

• Experience designing data lake or lakehouse architectures.
• Familiarity with data governance, monitoring, and observability tools.
• Experience supporting analytics, BI, or machine learning workloads.

If you have a strong background in Databricks and large-scale data engineering and are looking for a long-term remote opportunity, we'd love to hear from you.

Project Description:

The primary goal of the project is the modernization, maintenance and development of an eCommerce platform for a big US-based retail company, serving millions of omnichannel customers each week.

Solutions are delivered by several Product Teams focused on different domains - Customer, Loyalty, Search and Browse, Data Integration, Cart.

Current overriding priorities are new brands onboarding, re-architecture, database migrations, migration of microservices to a unified cloud-native solution without any disruption to business.

Responsibilities:

We are looking for Data Engineer who will be responsible for designing a solution for a big retail company. The main focus is to support processing of big data volumes and integrate solution to current architecture.

Mandatory Skills Description:

• Readiness to work until 8.00 pm CET (no need to do overtimes)
• Overall years of experience required 8+ (at least 1+ year in a Lead/Architect position)
• Strong, recent hands-on expertise with Azure Data Factory and Synapse is a must (3+ years).
• Strong expertise in designing and implementing data models, including conceptual, logical, and physical data models, to support efficient data storage and retrieval.
• Strong knowledge of Microsoft Azure, including Azure Data Lake Storage, Azure Synapse Analytics, Azure Data Factory, and Azure Databricks, pySpark for building scalable and reliable data solutions.
• Extensive experience with building robust and scalable ETL/ELT pipelines to extract, transform, and load data from various sources into data lakes or data warehouses.
• Ability to integrate data from disparate sources, including databases, APIs, and external data providers, using appropriate techniques such as API integration or message queuing.
• Proficiency in designing and implementing data warehousing solutions (dimensional modeling, star schemas, Data Mesh, Data/Delta Lakehouse, Data Vault)
• Proficiency in SQL to perform complex queries, data transformations, and performance tuning on cloud-based data storages.
• Experience integrating metadata and governance processes into cloud-based data platforms
• Certification in Azure, Databricks, or other relevant technologies is an added advantage
• Experience with cloud-based analytical databases.
• Experience with Azure MI, Azure Database for Postgres, Azure Cosmos DB, Azure Analysis Services, and Informix.
• Experience with Python and Python-based ETL tools.
• Experience with shell scripting in Bash, Unix or windows shell is preferable.
• Demonstrated ability to lead cross-functional engineering teams, define technical strategy and architecture, drive delivery of complex data platforms, mentor engineers, and effectively communicate with stakeholders at all organizational levels.

Nice-to-Have Skills Description:

• Experience with Elasticsearch
• Familiarity with containerization and orchestration technologies (Docker, Kubernetes).
• Troubleshooting and Performance Tuning: Ability to identify and resolve performance bottlenecks in data processing workflows and optimize data pipelines for efficient data ingestion and analysis.
• Collaboration and Communication: Strong interpersonal skills to collaborate effectively with stakeholders, data engineers, data scientists, and other cross-functional teams.
• Ability to plan, estimate and track progress of implementing features
• Computer Science and data science academic and education credentials

Languages:

English: B2 Upper Intermediate

About The Position

MWDN is an international recruitment and outstaffing company with 23+ years of experience connecting exceptional tech talent with leading companies across Israel, the USA, Great Britain, and Western Europe. In this role, MWDN acts as the recruitment partner, and the selected candidate will work directly with the client’s team on their product in an international environment.
 

Why does MWDN rock?

Here’s what you can expect when you join MWDN:

• Security: We carefully vet our clients to minimize risks and ensure reliability and timely payments—no fraud or unpleasant surprises.
• Career support: If a project isn’t the right fit, we support you and actively help find new opportunities that match your skills and career goals.
• Legal assistance: We provide guidance on legal matters, including opening and managing your independent contractor or sole proprietorship status, taxes, and related processes.
• Professional development: We offer English courses and professional growth opportunities, as well as team-building events.

Why choose us? MWDN is ranked among the top 5 IT employers in our region according to DOU. We take pride in our transparency and strong commitment to our team. Curious to learn more? See what our employees say about working with us on DOU.
 

What is your new project?

• Domain: Identity and Access Management (IAM) software
• Location: Israel
• Company size: 200-500 employees
• Founded in: 2014
   

What is your new project?

Are you ready to join a game-changing force in identity and access management?

Our client is revolutionizing the way enterprises protect user identities in a passwordless world. You’ll be working at the intersection of cutting-edge biometrics, behavioral analytics, and next-gen identity orchestration — helping the world’s leading brands safeguard millions of users. Backed by more than 100 M Series A — one of the largest in cybersecurity history — and trusted by major global enterprises, they offer the agility of an innovator with the strength and backing of an industry leader.

Ready to take part in redefining IAM for the modern era? Let’s talk.
 

What makes you a great fit

• 3+ years of hands-on experience in security research, mobile security, browser research, fraud research, detection research, reverse engineering, or a related technical role.
• Experience with web browsers, mobile browsers, WebViews, browser APIs, JavaScript runtime behavior, browser automation, fingerprinting, client-side web security, and low-level browser technologies.
• Familiarity with the architecture or codebase of modern open-source browsers and rendering engines, such as Chromium, WebKit, Blink, or Gecko, with the ability to reason about how browser internals can expose new security and fraud signals.
• Experience with native Android and/or iOS applications, mobile OS behavior, app instrumentation, emulators, device spoofing, mobile automation, mobile security, and low-level platform APIs.
• Attacker mindset and practical understanding of how malicious actors attempt to bypass detection using automation, AI agents, spoofing, and anti-detection techniques.
• Ability to identify subtle technical signals and turn them into practical detection or data collection opportunities.
• Experience designing technical experiments and validating research hypotheses.
• Experience with one or more SDK development languages and environments, such as TypeScript/JavaScript for web, Kotlin/Java for Android, or Swift/Objective-C for iOS, with the ability to understand implementation constraints and collaborate effectively with SDK engineering teams.
• Scripting ability, preferably in Python, for building research tools, automation, and analysis workflows.
• Ability to work independently on ambiguous problems and communicate findings clearly to engineering, product, and research stakeholders.
   

Advantages

• Experience with Web SDKs, Mobile SDKs, client-side telemetry, device intelligence, behavioral signals, AI agent detection, or fraud detection products.
• Experience researching bots, credential stuffing, scraping, headless browsers, AI-assisted automation, app cloning, SDK abuse, phishing kits, malware, or
• anti-detection frameworks.
• Experience with reverse engineering Android or iOS applications.
• Familiarity with detection quality measurement, feature evaluation, false-positive analysis, production monitoring, or machine learning concepts.
• Bachelor’s degree in Computer Science, Cybersecurity, Data Science, or a related field— or equivalent hands-on experience.
  
   

Your day-to-day in this position

• Research browser, WebView, Android, and iOS environments from an attacker’s perspective.
• Identify new security signals, behavioral indicators, and technical patterns that can improve fraud, abuse, automation, and AI agent detection.
• Investigate attacker techniques involving bots, browser automation, AI agents, emulators, device spoofing, hooking, instrumentation, remote access tools, and
• anti-detection methods.
• Design and run experiments to compare legitimate, automated, AI-assisted, and manipulated environments.
• Evaluate proposed signals for reliability, stability, spoofability, privacy sensitivity, performance impact, and production feasibility.
• Translate research findings into clear SDK feature requirements for web and mobile data collection.
• Build internal tools, scripts, and lab environments to support signal research and validation.
• Collaborate with SDK, engineering, product, and detection teams to move research from hypothesis to production.
  
   

Our next steps

✅ Intro call with a Recruiter — ✅ Intro call with client — ✅ Technical interview — ✅ CTO interview — ✅ HR interview — ✅ Reference check — ✅ Offer

We are looking for a Lead Backend Developer to architect and own the backend infrastructure of our fintech platform. You will design scalable microservices, manage critical data flows, and ensure system reliability at scale. Work directly with product, design, and business stakeholders to translate requirements into robust backend systems. 

This is a hybrid role, and we are currently considering candidates based in Lviv (Ukraine). 

Fully remote work is not an option for this position.

What You Will Do
Backend Architecture & Design

• Own the backend architecture end-to-end across microservices.
• Design and implement Node.js / Express services handling 20M+ transactions monthly.
• Architect PostgreSQL schemas for reliability and performance at scale.
• Define API contracts (GraphQL, REST) that support frontend and partner integrations.
• Make critical decisions on data consistency, caching, and async patterns.

Microservices & System Design

• Build and maintain multiple Node.js / Express microservices with clear ownership boundaries.
• Implement webhook-driven workflows and event-driven architecture.
• Design and implement real-time data synchronization pipelines.
• Manage message queues (RabbitMQ) for async operations and inter-service communication.
• Ensure row-level security (RLS) and multi-tenant data isolation at the database layer.

Data & Performance

• Design and optimize PostgreSQL schemas using Prisma ORM.
• Write complex queries, manage indexes, and ensure query performance.
• Implement caching strategies and data consistency patterns.
• Build audit trails and changelog tracking for compliance and debugging.
• Handle sensitive data (KYC, AML, financial records) with security-first approach.

Integration & Third-Party Services

• Integrate with external services (KYC providers, document verification, acquiring networks).
• Design and maintain API integrations with payment processors and clearing centers.
• Build robust error handling and retry logic for critical integrations.
• Document APIs and maintain SDK/integration guides for partners.
Communication & Leadership

• Work directly with product managers and stakeholders to clarify backend requirements.
• Proactively flag technical risks, propose solutions, and keep stakeholders informed.
• Give technical feedback on product feasibility and scalability implications.
• Lead backend code reviews with focus on quality, performance, and knowledge sharing.
• Mentor junior developers and foster backend engineering best practices.

What We Are Looking For
Core Requirements:

• 5–7 years of production experience in Node.js backend development.
• Strong TypeScript across the entire stack (no JavaScript-only experience).
• PostgreSQL expertise: schema design, optimization, transactions, advanced queries.
• Prisma ORM or similar ORMs and hands-on experience with relational databases.
• GraphQL schema design and resolver implementation (REST a plus).
• Microservices architecture: designing boundaries, managing state, async communication.
• RabbitMQ or similar message brokers; event-driven architecture patterns.
• Experience with fintech, payments, or regulated financial products.
• Strong communication skills and comfort working directly with non-technical stakeholders.

Nice to Have:

• Distributed systems experience (eventual consistency, saga patterns, consensus).
• gRPC for service-to-service communication.
• Experience scaling to 100K+ users and handling high transaction volume.
• Background in AML/KYC compliance or financial data handling.
• DevOps sensibility: monitoring, logging, deployment pipelines.
• Experience mentoring backend teams.

Tech Stack
Core: Node.js, Express, TypeScript, PostgreSQL, Prisma ORM, GraphQL, RabbitMQ, gRPC
Supporting: REST APIs, Webhooks, Real-time data sync, Multi-tenant architecture, Audit logging

What We Offer

• Full backend ownership and architectural control.
• Work on systems handling millions of transactions and 100K+ merchants.
• Direct access to product and business stakeholders.
• Modern microservices stack with no legacy debt.
• AI-friendly engineering culture—we embrace tools that make you more effective.
• Deep fintech learning: multi-partner networks, compliance, payment flows.
• Competitive compensation and benefits package.

About the project:
DataImpulse is a global proxy service provider with 147,000+ customers worldwide. We offer residential, mobile, and datacenter proxies from $1/GB, one of the most competitive rates on the market. We're scaling fast and looking for a Product Marketing Manager to own positioning, messaging, and go-to-market execution across our key segments.

What you'll do:

• Develop and maintain a messaging framework across 6 ICP segments, from positioning to copy.
• Create and optimize landing pages, case studies, and comparison pages per use-case (you own copy and core messaging, work closely with design).
• Run competitive intelligence: monitor competitors, build battle cards, report findings.
• Produce funnel content: onboarding guides, email nurture sequences, use-case driven materials.
• Drive GTM launches for new features, GEOs, and acquisition channels.
• Use AI tools to optimize content for LLM search and automate routine processes.
• Track conversion by segment, run A/B tests on messaging, report on performance.

What we're looking for:

• 3+ years in product marketing or B2B marketing.
• English at B2 level or higher.
• Hands-on experience with Google Analytics, Google Search Console, HubSpot (or similar CRM), Ahrefs or SEMrush.
• Comfortable working in Figma, Notion, Claude/ChatGPT, Google Workspace.
• Background in the proxy, data infrastructure, or adjacent tech market is a big plus.
• You make decisions based on data, not gut feeling alone.

What we offer:

• Remote or hybrid, flexible hours.
• Official employment, paid vacations and sick leaves.
• Performance bonuses tied to pipeline results.
• Budget for learning and professional development.
• A data-driven marketing team that's actively growing.

We are looking for a Lead Backend Developer to architect and own the backend infrastructure of our fintech platform. You will design scalable microservices, manage critical data flows, and ensure system reliability at scale. Work directly with product, design, and business stakeholders to translate requirements into robust backend systems. 

This is a hybrid role, and we are currently considering candidates based in Lviv (Ukraine). 

Fully remote work is not an option for this position.

What You Will Do
Backend Architecture & Design

• Own the backend architecture end-to-end across microservices.
• Design and implement Node.js / Express services handling 20M+ transactions monthly.
• Architect PostgreSQL schemas for reliability and performance at scale.
• Define API contracts (GraphQL, REST) that support frontend and partner integrations.
• Make critical decisions on data consistency, caching, and async patterns.

Microservices & System Design

• Build and maintain multiple Node.js / Express microservices with clear ownership boundaries.
• Implement webhook-driven workflows and event-driven architecture.
• Design and implement real-time data synchronization pipelines.
• Manage message queues (RabbitMQ) for async operations and inter-service communication.
• Ensure row-level security (RLS) and multi-tenant data isolation at the database layer.

Data & Performance

• Design and optimize PostgreSQL schemas using Prisma ORM.
• Write complex queries, manage indexes, and ensure query performance.
• Implement caching strategies and data consistency patterns.
• Build audit trails and changelog tracking for compliance and debugging.
• Handle sensitive data (KYC, AML, financial records) with security-first approach.

Integration & Third-Party Services

• Integrate with external services (KYC providers, document verification, acquiring networks).
• Design and maintain API integrations with payment processors and clearing centers.
• Build robust error handling and retry logic for critical integrations.
• Document APIs and maintain SDK/integration guides for partners.
Communication & Leadership

• Work directly with product managers and stakeholders to clarify backend requirements.
• Proactively flag technical risks, propose solutions, and keep stakeholders informed.
• Give technical feedback on product feasibility and scalability implications.
• Lead backend code reviews with focus on quality, performance, and knowledge sharing.
• Mentor junior developers and foster backend engineering best practices.

What We Are Looking For
Core Requirements:

• 5–7 years of production experience in Node.js backend development.
• Strong TypeScript across the entire stack (no JavaScript-only experience).
• PostgreSQL expertise: schema design, optimization, transactions, advanced queries.
• Prisma ORM or similar ORMs and hands-on experience with relational databases.
• GraphQL schema design and resolver implementation (REST a plus).
• Microservices architecture: designing boundaries, managing state, async communication.
• RabbitMQ or similar message brokers; event-driven architecture patterns.
• Experience with fintech, payments, or regulated financial products.
• Strong communication skills and comfort working directly with non-technical stakeholders.

Nice to Have:

• Distributed systems experience (eventual consistency, saga patterns, consensus).
• gRPC for service-to-service communication.
• Experience scaling to 100K+ users and handling high transaction volume.
• Background in AML/KYC compliance or financial data handling.
• DevOps sensibility: monitoring, logging, deployment pipelines.
• Experience mentoring backend teams.

Tech Stack
Core: Node.js, Express, TypeScript, PostgreSQL, Prisma ORM, GraphQL, RabbitMQ, gRPC
Supporting: REST APIs, Webhooks, Real-time data sync, Multi-tenant architecture, Audit logging

What We Offer

• Full backend ownership and architectural control.
• Work on systems handling millions of transactions and 100K+ merchants.
• Direct access to product and business stakeholders.
• Modern microservices stack with no legacy debt.
• AI-friendly engineering culture—we embrace tools that make you more effective.
• Deep fintech learning: multi-partner networks, compliance, payment flows.
• Competitive compensation and benefits package.

We are looking for a Performance Marketing Manager for our products in the eSports industry with experience in Google Ads and TikTok Ads, managing $100k+ monthly budgets across multiple GEOs. Experience in Gambling, Betting, Crypto, Gaming, or other regulated/high-risk verticals is highly preferred.

Requirements:

• Commercial work experience - 3+ years
• Experience as a hands-on PPC specialist - 3+ years.
• Google Ads — 3+ years
• TikTok Ads — 3+ years
• GA4 + GTM
• Proven experience in Gambling / Betting / Crypto / Gaming
• Confident working with TT Ads, Google Ads, and other PPC advertising platforms, understanding their advertising policies.
• Experience setting up tracking and end-to-end analytics
• Experience working with various GEOs.
• Fluent knowledge of funnel metrics: FTD, CPA, conversion to deposit, retention, CTR, CPC.
• Analytical mindset, independence, and the ability to multitask.
• Level of English  - Intermediate

Responsibilities:

• Set up and manage advertising campaigns in TT Ads, Google Ads, and other PPC advertising platforms.
• Research and segment audiences.
• Collect semantic keywords, analyze negative keywords, and differentiate between brand and non-brand traffic.
• Test creatives and formats, and provide recommendations for landing pages and content funnels.
• Set up tracking and end-to-end analytics: UTM, Click ID, GA4, GTM, Meta/TT Pixel.
• Check compliance and adherence to platform rules for each GEO, minimizing the risk of ad bans and rejections.
• Optimize campaigns using key metrics.
• Prepare weekly/monthly reports.

Must have:

• Hands-on PPC Specialist experience
• Strong TikTok Ads expertise.
• Budgets of 100k+ USD/month.
• Gambling / Betting / Crypto / Gaming experience.
• GA4 + GTM.
• Working with multiple GEOs.
• Understanding of FTD, CPA, and Retention.

What we could offer:

• 24 days of paid leave per year.
• 100% paid sick leave.
• Fixed rate + KPI 100-200%
• Full-time remote.
• Long-term collaboration.
• Sustainable business.
• Game and entertainment development company.

We are looking for a results-driven Account Manager / Lead Generator to join our team. If you have strong communication skills and know how to generate leads, we’d be happy to meet you. 🚀
 

This role offers growth opportunities in the Sales direction. 💰

Responsibilities:

- Search for potential clients and generate new leads

- Build and maintain strong relationships with clients

- Negotiate terms and support clients throughout the sales process

- Manage ongoing communication with clients

- Work closely with the team to ensure successful project delivery

- Follow up with prospects and convert them into long-term clients

Requirements:

- English level B2 (written and spoken)

- Strong communication and negotiation skills

- Sales mindset and proactive attitude

- Experience in sales, account management, or lead generation will be an advantage

- Ability to work independently and achieve targets

- Responsibility and good organizational skills

If you are ambitious, communicative, and want to grow in sales, you to us. 🔥

Meet Elbax! We make cool mobile apps, and people have downloaded our stuff over 50 million times. Our favorites to make? Photo/video editors.

We are looking for a proactive and detail-oriented Creator Outreach Specialist to help grow our mobile apps through TikTok creator partnerships.

Responsibilities:

• Search for relevant TikTok creators using TikTok One and other platforms.
• Find creators that match our target audience and budget.
• Prepare campaign briefs for creators.
• Reach out to creators and communicate with them throughout the collaboration process.
• Negotiate pricing and collaboration terms.
• Track conversations and maintain an organized outreach database.
• Coordinate with our marketing team to ensure campaigns launch smoothly.
   

Requirements:

• Experience with influencer outreach, creator partnerships, or digital marketing is a plus.
• Excellent written English.
• Strong communication and negotiation skills.
• Familiarity with TikTok and social media creators.
• Highly organized and able to manage multiple conversations at once.

What We Offer:

• Fully remote position.
• Flexible working hours.
• Long-term collaboration.
• Opportunity to work with a fast-growing mobile app company.

We are looking for an experienced CTO to join Netherlands-based defence technology company. 

This is a strategic executive role with full ownership of the technology vision, engineering execution, and product development from advanced R&D through prototype, low-rate initial production (LRIP), and full-scale manufacturing.

The CTO will work closely with the executive team, investors, government stakeholders, and strategic industry partners to build a world-class engineering organization and deliver cutting-edge defence technology.

Key Responsibilities:

• Set and execute the end-to-end technology roadmap for WARDEN MK1, MK2, and NATO MK3 variants.
• Lead systems engineering across propulsion (SRM), GNC, seeker (RF/EO/IR), embedded avionics, C2 integration, and launcher.
• Own synthetic data factory strategy: autonomous seeker training on synthetic datasets as core IP and recurring-revenue stream.
• Build and lead the internal engineering organisation: Chief Engineer, avionics leads, software engineers - targeting prototype Q1 2027 and LRIP mid-Q3 2027.
• Represent GD's technology credibly to MoD NL, NATO, investors, and strategic industrial partners; lead technical sections of tender responses and due diligence.
• Maintain ITAR-free and China-free supply chain integrity as a hard design and procurement constraint.
• Establish IP, code, and avionics sovereignty governance - all architecture remains exclusively GD-controlled.

Requirements:

• Proven track record delivering guided munitions, interceptors, UAV systems, or comparable precision-guided products to production - ideally within a NATO-aligned context.
• Deep expertise in at least two of: GNC algorithms, RF/EO/IR seeker development, solid rocket propulsion, embedded avionics/flight software, IAMD/C-UAS system integration.
• Experience managing gate milestones from idea to TRL-9 under a government-funded or defence-industry framework (MoD, NATO, EDA, or equivalent).
• Ability to communicate with investors, government stakeholders, and prime contractors - technically authoritative and commercially aware.
• Comfortable building an engineering organisation from scratch in a capital-constrained, high-velocity environment.
• Previous experience as CTO, VP Engineering, Chief Engineer, or Technical Director within the defence or aerospace sector.
• Eligible for and willing to obtain Dutch/NATO security clearance. 

Nice to Have:

• Experience with autonomous defence systems or software-defined weapons.

• Exposure to AI/ML or synthetic data applications in defence.

   

What We Offer:

• Executive-level role with significant strategic influence.
• Competitive compensation package with equity participation.
• Location - Netherlands (Hybrid, with regular on-site presence).
• High-impact environment with direct exposure to government programmes, strategic partnerships, and investors.
• Relocation package.

Waiting for your CV.

We run a B2B data platform for the entertainment industry — it tracks talent, who represents them, the deals they're doing, and the data surrounding all of it. The product is established and has been around for almost 10 years with paying customers; we're not a pre-launch startup.
 

We're rebuilding the platform from Symfony/Angular to Django and React, and we're hiring a senior developer to lead the rebuild — owning the architecture, setting technical direction, and assigning and reviewing work for our current developer. After the rebuild ships, you'll stay on as the long-term owner of the system. 

This is a permanent role, not a contract that ends with the migration.

We want more than a ticket-taker. You should understand the business logic behind what you're building, push back when a requirement doesn't match how users actually work, and drive architecture decisions.

Must have

• 6+ years of professional Python/Django experience
• Strong experience building REST APIs with Django REST Framework
• Has built and shipped systems from scratch, and owned a codebase long-term
• Experience with data-heavy applications (large datasets, complex querying, migrations)
• Comfortable leading: planning work, delegating tasks, and reviewing another developer's code
• Strong written and spoken English — you'll work directly with non-technical stakeholders
• 4+ hours of daily overlap with US Eastern time
• Advanced English speaking

Nice to have

• Hands-on React experience (our frontend stack)
• Experience rebuilding or migrating legacy systems (Symfony familiarity a bonus)
• Django Admin customization
• Third-party API integrations