Jobs at Djinni

Requirements:

• Strong experience with Java, Spring (Boot, Security, Data), and Hibernate
• Microservices architecture development experience
• Will be a plus:
  • AWS (EC2, RDS, SNS, SQS, Lambda)
    Kubernetes, Docker
  • PostgreSQL
  • Elasticsearch / OpenSearch
• Conversational English for team communication and documentation
• Ability to work from an office in the EU
• Experience in backend development for mobile applications

We offer:

• Competitive market-level salary 

• International team and a chance to work on a world-class product

• Compensation for lunches
• A modern office with a mountain view
• Equipment (MacBooks with M3/4, monitors)
• Relocation package

• Full legal support

• Documentation assistance for you and your family
• 90 min by car and you’re at the seaside.

 

We’re looking for a Legal & Compliance Officer to ensure the company can legally operate a Sweepstakes-based iGaming product in the US market without risking shutdowns from regulators, PSPs, banks, or advertising platforms.
You’ll be responsible for building and maintaining a practical, risk-oriented legal framework that protects the business while enabling product growth.
You’ll work closely with the CEO, Product, Anti-Fraud, PSP Manager, and external US counsel.

💪 Key Responsibilities:
✅ Maintain US state legality matrix
✅ Identify restricted states and geo limitations
✅ Approve game & promo mechanics from compliance perspective
✅ Support multi-entity structure (US, EU, partners)
✅ Ensure proper allocation of IP, revenue, and risk
✅ Oversee payment routing from legal perspective
✅ Approve game rules, prize mechanics, sweeps coin structure
✅ Review withdrawal rules and KYC triggers
✅ Align anti-abuse thresholds with legal standards
✅ Support PSP onboarding and compliance reviews
✅ Define sanctions filters and reporting logic
✅ Support crypto payment compliance
✅ Prevent advertising account blocks
✅ Prepare briefs and ToR for US lawyers
✅ Translate legal opinions into product rules and internal policies
✅ Maintain audit-ready documentation

🔥 Skills & Competencies:
✔️ 3+ years of experience in iGaming / Sweepstakes / Social Casino
✔️ Strong knowledge of US regulatory environment
✔️ Experience with PSP onboarding
✔️ Solid understanding of AML / KYC frameworks
✔️ Understanding of advertising compliance (Meta / Google)
✔️ Business-minded and risk-oriented approach
✔️ English B2+ preferred

⭐ Nice to Have
Experience in crypto gaming
Experience with offshore structures (e.g., Cyprus or similar)
Experience with affiliate compliance

✨What We Offer:

• Full remote work
• Flexible working hours (start between 10:00 and 12:00)
• 8 hour work day + break
• Time Off 28 calendar days of paid vacation (after successfully passing the probationary period)
• 4 days of days off

We’re looking for a Payments & Accounting Specialist to own and manage the company’s full money infrastructure.
You won’t just "keep books" you’ll control how money actually moves between US & EU PSPs, banks, crypto providers, vendors, and legal entities to ensure business stability, compliance, and scalability.
You’ll work directly with the CEO and become the operational owner of company cashflow in a fast-growing high-risk iGaming environment.

💪 Key Responsibilities:
✅ Build & Maintain Payment Architecture
- Structure and maintain multi-entity payment infrastructure
- Separate operating, marketing, payouts, reserves, and profit flows
- Ensure traceability and minimize PSP / bank risks

✅ Manage PSPs & Banks
- Work with US & EU PSPs, EMI providers, and crypto platforms
- Monitor settlements, rolling reserves, withheld funds, fees, and chargebacks
- Track compliance flags and PSP risk signals

✅ Execute and control payments to:
- Affiliates
- Marketing partners
- Vendors & SaaS providers
- Contractors
- Internal transfers between legal entities
- Ensure secure routing, correct payment purposes, and jurisdictional compliance

✅ Cashflow & Liquidity Control
- Balances by PSP
- Balances by bank
- Balances by legal entity
- Expected incoming funds
- Liabilities & operational obligations
- Monitor real cash vs. P&L
- Prevent liquidity gaps and frozen accounts

🔥 Skills & Competencies:
✔️ iGaming / Sweepstakes / High-Risk Payments Experience 
✔️ Middle+ level with hands-on experience in payment operations
✔️ Experience working with:
- US & EU PSPs
- EMI providers
- Crypto payment systems
✔️ Strong understanding of:
- Rolling reserves
- Delayed settlements
- Compliance flags
- PSP risk logic
✔️ Experience with multi-entity structures and intercompany flows
✔️ Ability to perform PSP reconciliation and payment routing
✔️ English B2+

⭐ Nice to Have
Experience in fast-scaling startups
Experience in US-facing iGaming products
Familiarity with crypto wallets and high-risk banking setups

✨What We Offer:

• Full remote work
• Flexible working hours (start between 10:00 and 12:00)
• 8 hour work day + break
• Time Off 28 calendar days of paid vacation (after successfully passing the probationary period)
• 4 days of days off

About us

Syndicode is a value-driven software development partner with a globally distributed team of engineers, designers, architects, and IT managers. We are united by the mission to provide our clients with software products and services that perform, look, and work as designed. 

We believe that our people and culture sustain Syndicode’s success. Our team is unified by shared principles like: Accountability, Involvement, Excellence, Visibility, Integrity, Innovation, Win-Win, and Flexibility. Syndicoders are professionals who pursue self-improvement through continual learning, are eager to introduce improvements to work processes, and can analyze a variety of sources to make sound, timely decisions.

If it sounds like you, apply to our jobs and become a new Syndicoder!

 
About the role

As a Python Team Lead, you will be responsible for the backend architecture that supports the mobile application. You will lead the development team, make critical architectural decisions, ensure high availability and performance of APIs used by mobile apps, and promote technical excellence throughout the project.

What you’ll be doing

• Lead and manage a cross-functional engineering team of  back-end, web, or mobile developers
• Own technical architecture decisions and drive the overall backend and API strategy
• Define development standards, code review processes, and testing practices across the team
• Coordinate work between backend and client engineers to ensure seamless API contracts and integration
• Hands-on contribution to critical backend services and infrastructure using Python (FastAPI/Django)
• Build and optimize scalable, service-oriented systems supporting real-time features
• Ensure platform security, GDPR compliance, and audit logging
• Mentor and grow engineers technically and professionally, fostering a culture of ownership and quality 

What you’ll need

• 6+ years of professional software development experience, with strong Python backend expertise
• 2+ years of experience leading or managing engineering teams
• Proven experience building and shipping products that span web and mobile platforms
• Deep understanding of RESTful API design
• Strong experience with relational databases (PostgreSQL), data modeling, and query optimization
• Experience with cloud platforms (AWS or GCP), containerized deployments (Docker, Kubernetes), and CI/CD pipelines
• Familiarity with mobile development workflows, release cycles, and platform-specific constraints
• Solid understanding of testing strategies (unit, integration, e2e) and quality assurance practices across backend and mobile
• Experience with event-driven architectures, message queues (Redis, RabbitMQ, or Kafka)
• Strong understanding of asynchronous programming (asyncio, async/await) and concurrency patterns in Python
• Strong understanding of authentication, authorization, and security best practices
• Excellent communication skills with the ability to align technical and non-technical stakeholders

Nice to have   

• Experience with AI/ML integration, vector databases (Pinecone, Weaviate, pgvector), or recommendation systems
• Experience with NoSQL or non-relational databases (MongoDB, DynamoDB, Cassandra, or similar)
• Hands-on experience with or close collaboration with teams building client applications (React, React Native, Flutter, Next.js, or similar web/mobile frameworks)
• Experience with real-time systems (WebSockets, live streaming, push notifications)
• Background in marketplace, e-commerce, or content-driven platform engineering
• Experience with multi-language/localization systems
• Exposure to tax/VAT compliance logic or fintech-adjacent workflows
• Experience scaling teams and processes during rapid growth phases
   

What you’ll get at Syndicode

• 15 days of vacation, 11 days off for holidays, and 20 sick leave days per year
• Fully remote job
• Educational support
• Internal tech meetups
• Continuous feedback within teams and departments
• Top-notch team 
• Ability to participate in decision-making and bring new ideas
• Self-management: opportunity to manage your time and plan your activities
• Dynamic fast-growing environment: we react and adapt quickly to the world and market changes.

N-iX is a software development service company that helps businesses across the globe develop successful software products. Founded in 2002 in Lviv, N-iX has come a long way and increased its presence in nine countries - Poland, Ukraine, Sweden, Romania, Bulgaria, Malta, the UK, the US, and Colombia. Today, we are a strong community of 2,000+ professionals and a reliable partner for global industry leaders and Fortune 500 companies.

Currently, we are looking for Talent Acquisition Specialist who will manage the full-cycle of the recruitment process, which means building appropriate sourcing strategies, screening candidates, coordinating the interview process, and facilitating offers and employment negotiations. Ensures candidates have a positive recruitment experience and possesses comprehensive knowledge of employment options aligned with the possibilities and collaboration policies in different countries. Conducts feasibility checks for collaboration with future employees. Collaborate closely with hiring managers and other stakeholders to ensure a seamless recruitment process and contribute to the overall success of our projects.

Responsibilities:

• Source and reach out to potential candidates through various channels, including international job boards, social media, and networking
• Build and maintain a pipeline of qualified IT professionals globally to meet current and future hiring needs in different countries
• Conduct thorough candidate assessments, evaluating soft skills, experience, cultural fit and assess the available form of employment in a specific country
• Provides the candidate with information about employment options in accordance with the possibilities and collaboration policies in different countries; ensures the feasibility check of collaboration
• Coordinate and conduct initial and follow-up interviews
• Collaborate closely with hiring managers, staffing partners to understand specific talent requirements and develop effective recruitment strategies
• Provide regular updates on recruitment progress, address concerns, and adjust strategies as needed
• Communicate transparently with candidates, keeping them informed about their status and next steps
• Stay informed about industry trends, market conditions, and competitor activities to make strategic recommendations for attracting top talent in different countries
• Maintain accurate and up-to-date candidate records in the applicant tracking system
• Generate regular reports on recruitment metrics, providing insights and recommendations for process improvement.

Requirements:

• Bachelor or Master’s degree in Human Resources Management or a related field
• 2+ years of relevant experience as an IT Recruiter
• Strong knowledge of IT roles, technologies, and industry trends
• Upper-Intermediate + level of English
• Strong proficiency in recruitment sourcing strategies, incorporating job campaigns, internet job boards, social networking, and employer branding
• Experience using sourcing tools to find active and passive candidate
• Excellent communication and interpersonal skills
• Ability to manage multiple priorities in a fast-paced environment
• Familiarity with applicant tracking systems and recruitment tools

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

Company Overview

We are a fast-growing digital media company operating in the DOOH and digital marketing space. We work with local businesses, agencies, and national brands, delivering innovative advertising solutions including LED trucks and digital screens. As we scale, we are looking for a strategic and hands-on Head of Marketing to lead brand growth, customer retention, and industry positioning.

Role Overview

The Head of Marketing will own the company’s marketing strategy and execution across brand, digital channels, customer retention, PR, and industry presence.

This role requires both strategic thinking (1–3 year growth direction) and operational execution (content, campaigns, events, communications).

The ideal candidate is analytical, business-oriented, and capable of building structured processes with clear KPIs.

Key Responsibilities

1. Marketing Strategy & Planning

• Conduct full analysis of current marketing processes and performance
• Build a 3–6 month marketing roadmap with defined KPIs and timelines
• Develop 1–3 year marketing growth strategy
• Define priority initiatives for 1—3—6 month execution cycles
• Create and manage structured project lists and reporting systems
   

2. Brand Positioning & Industry Presence

• Represent the company in virtual negotiations, strategic partnerships, and high-level online meetings, positioning the brand and value proposition effectively
• Identify and select key industry events for participation or sponsorship
• Lead industry PR initiatives (media publications, interviews, innovation features)
• Strengthen online brand positioning and visibility (Google presence, industry publications)
   

3. Customer Marketing & Loyalty

• Analyze current customer base (volume, tenure, journey, segmentation)
• Conduct customer surveys and NPS analysis
• Create customer tiers and loyalty programs
• Develop corporate gifting strategy
• Propose collaboration initiatives and retention campaigns
• Drive review acquisition strategy (Google Maps, testimonials, case studies)
   

4. Digital Marketing & Communications

• Build and execute 3–6 month content plan
• Define social media strategy (rubrics, tone of voice, posting frequency, creatives)
• Manage email marketing calendar (retention, announcements, review campaigns, promotions)
• Develop templates and automation flows (e.g., via Klaviyo or similar tools)
• Oversee creation of all marketing materials and creatives
   

5. New Business Marketing

• Define and prioritize target segments (small and mid-sized businesses, media agencies, national brands)
• Create targeted outreach and positioning strategy
• Align marketing initiatives with sales priorities
• Support sales with positioning materials and marketing campaigns
   

6. Internal & Online PR

• Build strong internal employer brand and positive company image
• Create engaging internal communications
• Oversee online PR and company representation across digital platforms
   

7. Operational Oversight

• Supervise marketing task execution and deadlines
• Ensure consistent quality of content and brand messaging
• Track and report on KPIs and marketing performance
• Collaborate closely with Sales, Operations, and Leadership
   

Required Skills & Experience

• 5+ years in marketing leadership roles
• Advanced English proficiency (C1 or higher), with strong written and verbal communication skills
• Experience in digital marketing / DOOH / media / advertising industry preferred
• Strong strategic planning and execution skills
• Experience with content marketing, email automation, and social media strategy
• Experience in PR and event marketing
• Analytical mindset with KPI-driven approach
• Experience conducting customer analysis and building loyalty systems
• Strong communication and presentation skills
• Ability to represent the company publicly

What Success Looks Like

• Clear marketing strategy with measurable KPIs
• Improved brand visibility and industry presence
• Structured retention system and loyalty program
• Strong Google reviews and testimonials pipeline
• Consistent lead generation aligned with sales strategy
• Recognizable and well-positioned brand in the digital advertising industry

Location: Remote
Work Hours: U.S. Eastern Time (ET)
Job Type: Full-time

We’re looking for an Anti-Fraud Specialist to build and own the company’s risk and fraud prevention system from scratch. This role combines strategic thinking and hands-on execution you’ll design the full fraud-contour, implement risk rules, and protect product economics without damaging conversion and retention.

You’ll work closely with the CEO, PSP Manager, Product, and Marketing teams to ensure sustainable growth and PSP stability on the US Sweepstakes market.

💪 Key Responsibilities:
✅ Build and own the full risk lifecycle:
✅ Develop and implement a unified fraud detection system integrating:
PSP risk signals, chargebacks, BIN & velocity checks, device fingerprinting, IP/proxy/geo data, KYC signals, affiliate sources, and in-product behavioral data.
✅ Create and manage risk-scoring models and fraud profiles for all users.
✅ Design and optimize:
- Auto-block rules
- Withdrawal holds
- Manual review flows
- Bonus eligibility logic
- Geo & device restrictions
✅ Monitor and improve fraud economics.
✅ Collaborate with PSP to maintain healthy processing metrics and reduce AML/chargeback risks.
✅ Work with Product to close UX and bonus exploitation gaps.

🔥 Skills & Competencies:
✔️ iGaming and US Market Experience 
✔️Experience working with antifraud tools, device/IP/geo systems, and PSP logs.
✔️ Ability to work with SQL/BI tools at analytical level.
✔️ Experience building risk rules, thresholds, and scoring models.
✔️ Ability to make tough decisions and challenge marketing/product when necessary.
✔️ English B2 or higher.

⭐ Nice to Have

Experience in US Sweepstakes or Social Casino products.
Experience building antifraud systems from zero in startups.
Knowledge of AML processes and PSP health metrics.
Experience working with affiliate-heavy traffic.

✨What We Offer:

• Full remote work
• Flexible working hours (start between 10:00 and 12:00)
• 8 hour work day + break
• Time Off 28 calendar days of paid vacation (after successfully passing the probationary period)
• 4 days of days off

We are looking for a Middle System Analyst to join the Fintech Core project — a white-label modular fintech platform enabling rapid launch of digital banking and payment products. In this role, you will define system architecture, integration designs, and technical specifications for a scalable, PCI DSS–compliant financial platform serving multiple global implementations. You will work closely with Business Analysts, Solution Architects, and Engineering teams to translate business requirements into detailed technical documentation, ensuring high-quality, secure, and compliant system design across microservices-based architecture.

Details

Project: Fintech Core (White-label Digital Banking Platform)

Employment Type: Full-time

Start Date: ASAP

Work Format: Remote

Language Requirements: English – Upper-Intermediate+

About the Project

Fintech Core is a mature, actively evolving modular fintech platform designed to launch neobanks, digital wallets, and payment systems within 3 months.

The platform includes:

• General ledger system
• Middleware layer
• Mobile (iOS/Android) & Web applications
• Integrations with KYC/AML providers, card issuers, payment processors
• Compliance monitoring modules
• Built on microservices architecture, the platform supports:
• Multi-currency operations
• Cross-border transactions
• Card issuing
• Digital wallets
• Account & transaction management
• Back-office orchestration
• The solution is PCI DSS compliant and aligned with global regulatory frameworks.

Key Responsibilities

• Analyze and document system requirements across payments, cards, wallets, accounts, ledger, and compliance modules

• Translate business requirements into:

  Technical specifications

  API contracts (REST / OpenAPI)

  Database schemas

  Integration architectures

• Design data models, ER diagrams, and data flow diagrams for transactional systems

• Define integration patterns with:

  Payment processors

  KYC/AML providers

  Card networks

  Open Banking platforms

• Create sequence diagrams, component diagrams, and deployment architecture documentation
• Define non-functional requirements (performance, security, audit, retention policies)
• Conduct technical workshops with Engineering teams
• Maintain traceability between requirements, specs, implementation, and testing
• Support QA with integration test scenarios and acceptance criteria
• Ensure compliance with PCI DSS, GDPR, PSD2 and financial security standards
• Participate in sprint planning and architecture review sessions

Requirements

• 3+ years experience as System Analyst / Technical Analyst in fintech or banking
• Strong understanding of: General ledgers, Payment processing, Account management systems
• Experience with microservices architecture and distributed systems
• Strong API design knowledge (REST, OpenAPI/Swagger, webhooks)
• Experience with database modeling for transactional systems
• Understanding of event-driven architectures and message queues
• Familiarity with ISO 20022, SWIFT, SEPA, card schemes
• Knowledge of OAuth, JWT, API keys
• Cloud architecture understanding (AWS / Azure / GCP)
• Strong documentation skills (UML, BPMN, ERD, sequence diagrams)
• Experience with Confluence / Notion

Domain Knowledge

• Core banking concepts: accounts, balances, reconciliation
• Domestic and cross-border payment flows
• Card issuing and digital wallet mechanics
• KYC / AML processes
• PCI DSS & GDPR fundamentals

Nice to Have

• White-label / multi-tenant architecture experience
• Blockchain / crypto integrations
• PSD2 / Open Banking / MiFID knowledge
• Performance testing & system optimization
• DevOps & CI/CD understanding
• Modular platform architecture experience
• Financial audit & compliance exposure
• Data migration / integration project experience

Team Structure

• Cross-functional Agile team including:
• Product Owners
• Business Analysts
• System Analysts
• Backend & Frontend Engineers
• QA Engineers
• DevOps
• Security & Compliance Specialists

About the role
We are looking for a Middle Manual QA Engineer to join our product team and ensure the quality of a web-based online casino platform.
This role is for a specialist who takes ownership of product quality, participates in test planning, and performs deep analysis of complex issues, including integrations and backend logic.

Requirements

Experience

• 2+ years of commercial experience in Manual QA
• Experience in full-cycle testing of web applications
• Understanding of SDLC and Agile/Scrum
• Experience working in product teams

Technical skills

• Strong knowledge of testing theory and test design techniques
• Experience with PostgreSQL or other relational databases
• API testing experience (REST, HTTP/HTTPS, Postman, Swagger)
• Confident use of Chrome DevTools
• Experience with Jira and test management systems (Zephyr Scale, TestRail, or similar)
• Understanding of client-server architecture
• Experience analyzing logs and working with monitoring tools (Grafana or similar)

Languages

• English — B2+ (documentation and bug reporting)

Responsibilities

Testing

• Planning and execution of functional, regression, smoke, and integration testing
• Testing payment integrations (card processing, crypto, bank transfers)
• Deep testing of REST APIs and backend logic
• Multi-region testing (UK, Netherlands, Germany, France)
• Cross-browser and responsive testing
• Testing integrations with external services and payment providers

Analysis and Troubleshooting

• Log analysis and API interaction analysis
• Investigation and reproduction of complex and unstable issues

Documentation and Process

• Creating and maintaining test documentation in Zephyr Scale
• Building and updating regression test suites
• Reporting testing status and quality metrics in Jira
• Participation in sprint planning and task estimation
• Requirements analysis and early risk identification

Quality Improvement

• Release quality control before deployment
• Proposing improvements to QA processes and efficiency

Team collaboration

• Close collaboration with developers, analysts, and product managers
• Participation in technical discussions

Nice to have

• Experience in iGaming or Gambling (1+ year)
• Understanding of payment systems and financial transactions
• Experience with monitoring tools (Grafana, Kibana, ELK)
• Basic knowledge of web application security testing
• Experience with database tools (DBeaver or similar)
• Active use of AI tools (ChatGPT, Copilot, Claude) for test case generation, SQL queries, log analysis, and documentation

Soft skills

• Ownership and proactivity
• Analytical and structured thinking
• Strong attention to detail
• Good communication skills
• Self-organization and ability to work independently
• Willingness to share knowledge and mentor others

Working conditions

• Remote, full-time (40 hours per week)
• Flexible working hours
• Public holidays observed

What we offer

• Real impact on product quality and release decisions
• Work with a high-load international product
• Modern technology environment
• Growth opportunities to Senior QA or QA Lead
• Participation in technical decision-making

About Cyberette
Cyberette is an AI-native cybersecurity company developing forensic-grade technology to detect digital manipulation across video, audio, and images. Our mission is to restore trust in digital communication and protect people, organizations, and institutions from deception in the AI era.

About the Role
We are looking for a Computer Vision Data Scientist with strong initiative and technical excellence to join our core development team. You’ll be responsible for designing, training, and optimizing computer vision models and architectures used in our deepfake detection and forensic analysis platform.

This role requires someone who thrives in fast-paced environments, loves solving complex problems, and brings both creativity and rigor to their work. You’ll collaborate closely with our founders and engineers to push the limits of multimodal AI for real-world impact.

Key Responsibilities

• Develop, train, and deploy computer vision models for image and video manipulation detection.
• Research and experiment with new architectures, model ensembles, and multimodal fusion techniques.
• Preprocess, clean, and manage large-scale datasets for training and evaluation.
• Optimize model accuracy, latency, and scalability for enterprise-grade performance.
• Contribute to the design of the model evaluation framework and internal benchmarking tools.
• Collaborate with other engineers and researchers to integrate models into production pipelines.
• Document methodologies, experiments, and findings clearly and systematically.

Requirements

• MSc/PhD in Computer Science, Machine Learning, Artificial Intelligence, or related field.
• Strong experience in computer vision (CNNs, Transformers, multimodal models).
• Proficiency in Python and deep learning frameworks (PyTorch, TensorFlow).
• Solid understanding of ML ops, dataset curation, and model evaluation.
• Proven experience building and training models from scratch.
• Excellent analytical and problem-solving skills.
• Self-driven, disciplined, and collaborative mindset.

What We Value
At Cyberette, we believe technology should serve people. We are a team of builders united by a shared sense of purpose — creating tools that make the digital world safer and more truthful. If you care deeply about impactful innovation and want your work to matter, you’ll feel at home here.

Bonus Skills

• Experience with audio or multimodal analysis.
• Knowledge of adversarial attacks or deepfake generation methods.
• Experience in real-time inference or edge deployment.

The client is an innovative global fintech leader behind USDT, the world’s largest and most widely used stablecoin.

We are looking for a Senior Backend Engineer with strong expertise in blockchain and crypto infrastructure to design, build, and scale high-performance backend systems interacting with EVM-based networks. This role focuses on blockchain integrations, transaction processing, distributed systems, and secure financial infrastructure at global scale.

Responsibilities:

• Design, build, and maintain scalable backend services using Node.js (JavaScript/TypeScript)
• Develop and optimize blockchain integrations with EVM-compatible networks
• Implement Web3-based interactions (smart contract calls, transaction signing, event indexing)
• Build secure services for transaction processing, wallet operations, and balance tracking
• Integrate with RPC providers, blockchain nodes, and third-party crypto services
• Design event-driven and distributed architectures for high-load financial systems
• Optimize gas usage, transaction batching, and on-chain/off-chain communication
• Implement monitoring, logging, and alerting for blockchain infrastructure
• Ensure security best practices in key management, signing flows, and API protection
• Write production-grade, well-tested code (unit, integration, load tests)
• Collaborate with product, DevOps, and security teams in a fully remote environment
   

Requirements:

• 7+ years of backend development experience
• Strong proficiency in JavaScript / TypeScript
• Deep experience with Node.js in production environments
• Hands-on experience with Web3 libraries (ethers.js, web3.js, viem, etc.)
• Strong understanding of EVM architecture and smart contracts
• Experience designing scalable distributed systems
• Strong understanding of security best practices in crypto environments

• Hands-on experience with Docker and containerized environments
   

  We are offering:

• Transparent strategy and thoughtful management that keep everyone aligned
• Space for personal growth and career development without limits
• A culture of continuous learning: internal courses, workshops, and English classes twice a week
• Skill up events where we share experience and stay on top of trends
• Competitive perks: flexible schedule, a strong compensation package, support for professional certifications, and generous vacation policy
• Team spirit that thrives through regular events, gatherings, and celebrations
   

Performance ad-tech platform specializing in programmatic resell: we purchase high-quality inventory from SSPs and effectively resell it through DSP buyers in banner and video formats

We are looking for a BDM who already has experience building and scaling

resell operations in programmatic (supply → demand), where profit is generated on

the margin between purchasing from SSP and selling to DSP

Key requirements

- Proven experience specifically in programmatic resell/arbitrage for 2–4 years:

- Purchasing inventory from SSP (PubMatic, Magnite, OpenX, Index, ,

Adform, AppNexus/Xandr, and similar)

- Reselling through DSP (DV360, The Trade Desk, Xandr, Yandex DSP,

MGID, Taboola, programmatic direct, agencies)

- Working in a model without own direct traffic/publishers (pure

resell, supply path management)

In-depth knowledge of focus formats:

- Banner/Display: standard (300×250, 728×90, etc.), rich media,

interstitial, high-viewability

- Video: pre-roll, in-stream, out-stream, rewarded, VAST/VPAID, vertical /short-form video

- Understanding of resell economics: CPM purchase vs CPM sale, margin per impression,win-rate, viewability, completion rate, fraud-rate, latency, supply path optimization

(SPO)

- Negotiation skills: floor prices, private marketplaces / PMP / deals at SSP; tests,scaling, performance guarantees at DSP buyers

- Experience with supply chain transparency: sellers.json, SupplyChain Object,minimizing hops

- Confident outreach to SSP partners and DSP clients (LinkedIn, email,

Telegram, industry events)

- Knowledge of current 2026 verticals: e-commerce, fintech, apps, gaming, education, dating — where banners and videos provide stable volume in the resell model

What will be in your area of responsibility

- Searching for and connecting new SSP partners to purchase high-quality programmatic inventory (banner + video) at favorable rates

- Attracting and developing DSP buyers, agencies, and performance teams who need high-volume, clean traffic without fraud

- Full transaction cycle: testing,analysis (margin, win rate, quality), scaling, analysis (margin, win rate, quality), scaling

- Supply chain management: optimizing delivery routes, monitoring transparency, working with Deal IDs / PMP

- Monitoring trends (vertical video, shoppable banners, brandformance, CTV-like inventory) and adapting offers to demand

- Constant work on margins: negotiations on floors/deals at SSP, packaging inventory for the needs of DSP clients

- Achieving goals for turnover, margins, and long-term partnerships

What we offer

- Fixed salary

Percentage of margin/turnover on resell operations Banner & Video — transparent scheme, no upper limit

- Fully remote format

- Access to real-time dashboards, BI analytics, internal statistics on

supply/demand, fraud, viewability/completion

- Fast payments, performance-oriented billing model

- Freedom in approach to development: focus on results and economics, minimum Business Development Manager | Programmatic Resell (Banner & Video)

- Performance ad-tech platform specializing in programmatic resell: we purchase high-quality inventory from SSP and effectively resell it through DSP buyers in banner and video formats

Data Lab Scientist – Computer Vision

About Cyberette

Cyberette is an AI-native cybersecurity company developing forensic-grade technology to

detect digital manipulation in video, audio, and images. Our mission is to restore trust in

digital communication and protect organizations from deception in the AI era.

About the Role

We’re looking for a Data Lab Specialist with a solid background in data operations and

computer vision. You’ll be responsible for building and maintaining high-quality datasets that

fuel our detection models, ensuring accuracy, diversity, and consistency across all data

pipelines.

This role combines hands-on technical work with coordination — ideal for someone who

enjoys both creating structure and collaborating across teams.

Key Responsibilities

• Curate, collect, and annotate large-scale datasets for image and video analysis.

• Collaborate with the AI team to align data preparation with model goals.

• Ensure quality control and consistency across all dataset sources.

• Guide and coordinate junior team members or interns working on data tasks.

• Perform exploratory data analysis and identify dataset gaps or biases.

• Maintain clear documentation and versioning of data pipelines.

Requirements

• BSc/MSc in Computer Vision, Data Science, or related field.

• Proven experience with dataset preparation and management for machine learning.

• Strong understanding of computer vision principles and data labeling workflows.

• Proficiency in Python, Pandas and/or Polars, NumPy, and OpenCV.

• Experience working collaboratively with ML or research teams.

• Highly organized, detail-oriented, and dependable.

What We Value

Cyberette is built by a team of people who care deeply about purpose-driven innovation. We

believe in using AI to protect truth, identity, and digital integrity — and data is the foundation

of that mission.

Bonus Skills

• Familiarity with dataset tools (Label Studio, CVAT, Supervisely).

• Knowledge of multimodal or synthetic data generation.

• Understanding of ethical AI and dataset governance principles

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 a Liquidity Monitoring Specialist!

Requirements: 

— Higher economic education;
— Systemic thinking and analytical mind;
— Ability to work with tables (excellent knowledge of Excel: formulas, summary tables);
— Willingness to work different shifts (day, evening, night).

Responsibilities:

— Processing and analysis of trading operations;
— Monitoring the state of the market;
— Research and analysis of exchange situations with the help of information and analytical tools;
— Interaction with the technical department.

Will be a plus: 

— Commercial experience and knowledge in the crypto domain. 

Work 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.

With us, you’ll dive into the world of unique blockchain technologies, reshape the crypto landscape, and become an innovator in your field. If you’re ready to take on challenges and join our dynamic team, apply now and start a new chapter in your career!
Let’s Build the Future Together!

🟢We invite a Senior Software Engineer with strong Node.js expertise and solid AWS knowledge to join our team. You'll work with a trusted leader in the Point-of-Sale industry with over 100,000 global installations. In this role, you’ll contribute to our client’s new initiative focused on creating data mapping between diverse menu order systems and integrating two distinct APIs to ensure seamless and accurate data transfer.

🟩 What's in it for you:

• Collaborate on a high-load, technically challenging backend project, expanding your expertise in API integration, data mapping, and data transformation
• Contribute to a global tech platform offering robust solutions for the restaurant and food service industry
• Influence technical best practices and mentor engineers, promoting a culture of quality and continuous improvement

✅ Is that you?

• 4+ years of commercial backend development experience with deep expertise in Node.js and TypeScript in production environments
• 2-3+ years of AWS experience (EC2, ECS, Lambda, SQS/SNS, CloudWatch, etc.)
• Solid experience with MongoDB
• Proven experience designing, building, and maintaining RESTful APIs
• Strong understanding of backend architecture and service design
• Experience writing unit and integration tests
• Experience with CI/CD pipelines and automated deployments
• Strong ownership mindset and ability to work independently, resolve complex issues, and deliver solutions
• Excellent communication and cross-functional collaboration skills
• Upper-Intermediate+ English level

Desirable:

• Experience mentoring or providing technical guidance to engineers
   

🧩Key responsibilities and your contribution

In this role, you’ll contribute to the design, development, and continuous improvement of high-loaded backend systems and services, ensuring technical quality and delivering bullet-proof solutions.

• Design, build, and maintain high-loaded backend systems and APIs using Node.js and AWS
• Develop new backend features and enhancements for production systems
• Support and troubleshoot production systems to ensure reliability and performance
• Identify and reduce technical debt and implement improvements to maintain code quality and reliability
• Write and maintain unit and integration tests to ensure code quality
• Collaborate with cross-functional teams to define requirements and deliver bullet-proof solutions
• Contribute to the continuous improvement of backend architecture and development practices
• Create and maintain clear, organized development documentation