Jobs at Djinni

About the role

We are looking for an experienced SMM Manager to drive social media growth, increase audience engagement, and develop an effective content strategy for an international digital product.

This is a great opportunity to work on a fast-growing international project, influence its social media presence, and collaborate with a professional marketing team.

Responsibilities:

• Manage Instagram, Telegram, and X (Twitter).
• Develop and execute the social media strategy.
• Create and maintain the content plan.
• Prepare copy and collaborate with designers.
• Launch promotional campaigns and audience engagement activities.
• Analyze content performance and competitors.
• Monitor trends and identify new growth opportunities.

• Build and maintain an active online community.

   

Requirements:

• 1+ year of experience in Casino / iGaming (candidates with less experience may also be considered if they have hands-on Casino/iGaming experience).
• Experience managing Instagram, Telegram, and X (Twitter).
• Reddit experience will be a plus.
• Strong understanding of content strategy, analytics, and competitor research.

• English — Intermediate or higher.

   

We offer:

• ⭐ First month — fully remote.
• ⭐ After the first month of cooperation, the role transitions to an office-based format in Prague, Czech Republic.
• Full-time, Monday–Friday.

• B2B cooperation (OSVČ).

   

Before applying:

Please apply only if you can answer "Yes" to both questions:

• Are you willing and able to relocate to the Czech Republic after the first remote month?
• Are you available to work from the Prague office on a full-time basis?

If you're interested, please send your CV. Additional project details will be shared during the interview process.

Code&Care — is a successful full-stack development company, which provides clients with high-quality development assistance worldwide.

Now our team has a position for Backend Engineer (Python).

Requirements:
• 3+ years of commercial backend development experience
• 2+ years of hands-on experience with Python
• Strong experience with Django, FastAPI, and Flask
• Deep understanding of microservices architecture and distributed systems
• Experience with idempotency, Saga/Outbox patterns, circuit breakers, and retry mechanisms
• Strong PostgreSQL knowledge, including transactions, locking, and performance optimization
• Experience with messaging systems such as Kafka, RabbitMQ, AWS SQS/SNS, or similar
• Strong experience with automated testing and Pytest
• Good understanding of application security principles, including OWASP, authentication, authorization, and API security
• Upper-Intermediate English level (B2+)

Nice to have:
• Experience in fintech, banking, or payment systems
• Experience building and supporting high-load production systems

What the company offers:
• Constant and interesting work with foreign clients
• Flexible working hours
• 50% cost compensation of sports, English lessons
• Annual paid 30 days vacation and paid sick days
• Medical insurance policy

Responsibilities:
• Design, develop, and maintain scalable backend services using Python
• Build and support microservices-based architecture
• Develop reliable and fault-tolerant distributed systems
• Design and optimize PostgreSQL databases and queries
• Implement messaging and event-driven solutions using Kafka, RabbitMQ, AWS SQS/SNS, or similar technologies
• Ensure high code quality through automated testing and code reviews
• Maintain application security and follow best practices for secure software development
• Collaborate with cross-functional teams to deliver new features and improvements
• Troubleshoot, optimize, and scale production systems

About the Project:

Our client is a UK-based fintech company building and scaling financial services used by hundreds of thousands of businesses. The team focuses on developing secure, reliable, and highly scalable backend systems that power critical financial operations. This role offers an opportunity to work on complex distributed architectures, high-volume transaction processing, and modern cloud-native technologies in a fast-growing product environment.

About Us

At UITOP, we design and develop scalable B2B SaaS platforms across industries like logistics, finance, construction, and so on.

Job Summary
We are looking for a Ruby on Rails Developer. The role focuses on backend development, and the team has been actively developing AI-powered features, making AI a core part of the product. You'll join a team of 5 developers, a PM, a designer, and 2 QA engineers.

What do you have

• At least 2 years of experience with Rails. 
• Proficient in Backend: you have at least two years of experience with Ruby and Ruby on Rails (most important), ideally 2-4 years.
• Frontend: Vanilla JavaScript, Hotwire with StimulusJS & Turbo a bit.
• Knowledge of Data Stores: Postgres and Redis; Sidekiq; S3. 
• Experience with Stimulus, TailwindCSS. 
• Experience with cloud environments, Terraform, networking and security concepts is a big plus. 
• Good English communication skills (B2 level), be ready to communicate effectively in English.

About project
The product helps municipalities and construction companies streamline the process of obtaining construction permits and approvals with AI. 

What we have

• Regular performance and salary reviews. 
• Working with complex large-scale SaaS projects, from 6 months.
• 18 working days of vacation and 10 sick days.
• Compensation 50% for professional development cources. 
• Free Internal English classes.
• Company equipment. We’ll provide a laptop after 6 months of work. 
• Financial compensation of coworking 100% (during blackouts).
• Flexible work schedule, remote.

Our focus is on a result-oriented person, ready to learn and implement new technologies. Maybe you are our match, let's talk!

Senior Azure / DevOps Engineer

We are looking for a Senior Azure / DevOps Engineer with strong hands-on experience in production Azure, Kubernetes, and AI/LLM infrastructure.

The engineer will own enterprise deployments end to end: infrastructure provisioning, integrations, security hardening, go-live, and operational handover.

Key Responsibilities

• Provision and operate isolated Azure environments and AKS clusters.
• Configure private networking, VNet, private endpoints, ingress, certificates, and NetworkPolicies.
• Implement Entra ID, managed identities, RBAC, PIM, and Key Vault.
• Deploy and operate AI/LLM services using Azure ML, AKS, Azure OpenAI, or similar platforms.
• Build RAG pipelines with Azure AI Search.
• Automate infrastructure with Terraform and GitHub Actions using OIDC.
• Integrate with PostgreSQL, Microsoft Fabric, Power BI, and enterprise data sources.
• Prepare technical documentation, runbooks, and audit evidence.

• Work directly with customer IT and security teams.

   

Required Experience

• 5+ years of engineering experience.
• Strong production experience with Microsoft Azure, AKS, and Kubernetes.
• Hands-on Terraform and GitHub Actions experience.
• Experience with private endpoints, managed identities, RBAC, and secure enterprise environments.
• Python, FastAPI, and containerized services.
• Experience deploying AI, ML, or LLM workloads.
• Strong understanding of Infrastructure as Code, least privilege, and secretless architecture.

• English sufficient for direct communication with international technical teams.

   

Nice to Have

• GPU infrastructure and high-throughput LLM inference.
• Azure ML Managed Online Endpoints, vLLM, Azure OpenAI, or AI Foundry.
• Azure AI Search, Microsoft Fabric, Power BI REST API, and PostgreSQL RLS.
• Experience working in locked-down enterprise Azure environments.

Required skills:

• 7+ years of proven experience as Delivery Manager/Technical Project Manager/Delivery Director
• Technical background (Developer/BA/QA)
• Experience in application development or elsewhere in SDLC
• Strong understanding of the software development lifecycle
• Strong understanding of different software development methodologies
• Proven experience managing complex, cross-functional, and distributed teams
• Excellent organizational skills and ability to structure processes
• Ability to manage multiple competing priorities effectively
• Good communication and problem solving skills
• Experience working with multi-national teams across time zones
 

Nice to have:

• Experience working in B2B SaaS / Telecom / Enterprise platforms
• Experience with Jira / Advanced Roadmaps / delivery analytics tools
• Experience building delivery processes at scale
• Knowledge of microservices architecture
• Ability to communicate in Ukrainian
 

Soft Skills:

• Leadership skills. Ability to offer solutions and innovative ideas
• Strong communication and stakeholder management skills
• Organizational skills, ability to organize people, processes
• Ability to manage competitive priorities
• Ability to resolve conflicts and align diverse stakeholders
• Self-motivated
• Stress resistance
 

Responsibilities:

• Work in the management team as a full member of the team
• Work within the Agile environment to assist with the planning, management, and execution of application development and ensure meeting committed timelines
• Lead Agile (Scrum) teams to deliver high-quality software on schedule
• Monitor team performance, delivery metrics, and project progress
• Develop and implement standards for the development, deployment and delivery processes
• Ensures the consistency of delivery processes through collaboration with Product, Account Management and PMO departments
• Build strong relationships with internal and external stakeholders (Carriers, Vendors, Partners)
• Communicate effectively with executive leadership on delivery status, risks, and decisions
• Demonstrate leadership abilities with the resolving critical production incidents, develop and implement mitigation plans for them
• This role requires a strategic mindset combined with hands-on execution capability — the ability to see the big picture while diving deep into delivery details when needed
• Report directly to VP of Delivery, B2B Soft

Location: 100% remote within EU, (company office is located in New York City)
Reporting to: Associate VP of Delivery

Benefits:

- 100% remote job

- Unlimited PTO 

- B2B (registered in Poland) or FOP (registered in Ukraine)

- Yearly bonus 

Delivery Director (Software Delivery & Application Development)

We are looking for an experienced Senior Delivery Manager / Delivery Director to join our leadership team and drive end-to-end execution of complex software delivery initiatives. This role requires a strategic mindset combined with hands-on delivery leadership - the ability to define delivery standards at scale while ensuring teams execute successfully across timelines, quality, and stakeholder expectations.

You will work closely with Product, Engineering, PMO, and Account Management teams to ensure consistent delivery performance and continuous improvement across the organization.

Key Responsibilities

• Serve as a full member of the management team, contributing to delivery strategy and execution planning
• Lead planning, execution, and delivery of application development initiatives within an Agile environment
• Drive delivery excellence by implementing and improving delivery processes, standards, and governance frameworks
• Ensure delivery consistency through strong collaboration with Product, Account Management, and PMO teams
• Manage multiple complex initiatives simultaneously, including dependencies, risks, scope, and resource constraints
• Build strong relationships with internal and external stakeholders (Carriers, Vendors, Partners)
• Communicate delivery status, risks, decisions, and mitigation plans to executive leadership
• Establish and track delivery KPIs and metrics (timelines, velocity, predictability, quality, incident trends, etc.)
• Lead resolution of critical production incidents and drive post-incident improvements and mitigation planning
• Support organizational growth through delivery maturity improvements and scaling best practices
• Drive change management initiatives, helping teams adopt new processes, tools, and operating models

• Promote adoption of AI-powered delivery practices (delivery analytics, automation, AI-assisted planning/reporting) and support AI-related product initiatives where relevant

   

Required Skills & Experience

• 7+ years of proven experience as a Delivery Manager, Delivery Director, Technical Project Manager, or similar role
• Strong technical background (Developer / BA / QA / Technical Lead experience preferred)
• Proven experience across the SDLC (application development, delivery, deployment, release management)
• Strong understanding of Agile delivery and modern software development methodologies (Scrum, Kanban, Lean)
• Experience managing complex cross-functional and distributed teams
• Experience working with multi-national teams across multiple time zones
• Excellent organizational skills and ability to structure processes and delivery governance
• Strong stakeholder management skills with ability to align diverse priorities
• Strong communication, escalation management, and problem-solving skills
• Ability to manage multiple competing priorities and deliver under pressure
• Demonstrated leadership in high-stakes delivery and incident environments

• Experience leading or supporting organizational change management initiatives

   

Nice to Have

• Experience in B2B SaaS / Telecom / Enterprise platforms
• Experience with Jira / Advanced Roadmaps / delivery analytics tools
• Experience building and scaling delivery processes across growing organizations
• Experience implementing delivery dashboards, KPIs, and executive reporting frameworks
• Exposure to AI/ML initiatives, AI governance, or AI-assisted delivery optimization

• Experience with transformation programs (process modernization, tooling adoption, Agile scaling)

   

Soft Skills

• Strong leadership and decision-making capability
• Ability to offer solutions and innovative ideas
• Excellent communication and stakeholder alignment skills
• Ability to resolve conflicts and manage escalations effectively
• Self-motivated, proactive, and accountable

• Stress resistance and ability to lead in fast-paced environments

   

Education

• Bachelor’s degree in Computer Science, Engineering, IT, or related field

• Relevant certifications are a plus

   

Why Join Us

• Be part of a fast-growing delivery organization driving enterprise-scale product execution
• Work directly with senior leadership and influence delivery strategy
• Lead meaningful transformation initiatives including AI-enabled delivery and scalable delivery governance
• Opportunity to build processes, shape culture, and drive delivery excellence across teams

Supplax is a US-based company with a Ukrainian team. We're a fully remote back-office for repair contractors across America — handling marketing, sales, crew management, and quality control so they can focus on the work itself. 5+ years on the market, 100+ team members, 30,000+ completed projects in 30+ US cities.

We're growing our B2B partner network and looking for someone who genuinely enjoys building relationships — not just managing a contact list.

What you'll do:

— Own a portfolio of B2B partners: interior designers, general contractors across the US

— Stay proactively in touch — calls, messages — so partners think of us first when a new project comes up

— Track partner status in CRM, resolve issues quickly, gather feedback

— Spot opportunities for repeat orders and referrals from existing partners

What we're looking for:

— 1+ year in account management, B2B sales, or client service

— English B2+ spoken and written — you'll work directly with American clients

— You know how to build real trust remotely, not just send check-in emails

— Organized, can juggle multiple accounts without dropping the ball

— CRM experience

Nice to have: background in construction, renovation, or interior design / prior experience working with US clients

What you get:

— $1200–1500/mo (base + uncapped bonus)

— 100% remote — work from anywhere

— Schedule: 4 PM – 1 AM Kyiv time

— Regular English practice with a tutor — on us

— Real career growth for people who deliver results

— A team that actually supports you

If this sounds like your kind of role — apply and let's talk.

Automation & Internal Tools Engineer

About Everstake

Everstake is one of the world’s leading blockchain infrastructure providers, supporting dozens of networks and serving enterprise clients globally.
We are looking for an Automation & Internal Tools Engineer to help us streamline our internal business operations. Instead of abstract “AI engineering,” we need someone who loves writing clean, straightforward scripts, connecting APIs, building simple dashboards, and deploying them reliably. You will use AI (specifically Claude) as a force multiplier to accelerate your development, UI building, and documentation.

Responsibilities
 

• Scripting & Orchestration: Write clean, simple, and straightforward automation scripts in Python or TypeScript. Transition legacy workflows from n8n into our primary orchestration engine, Hatchet.dev.
• Dashboards & UIs: Build and maintain clean, internal dashboards using Next.js / React (leveraging Claude to rapidly generate and iterate on front-end components) to display aggregated data to team members.
• API & Data Integration: Connect 3rd party APIs (e.g., Circleback, Google Sheets, Gemini/Claude) handling basic HTTP authentication, webhooks, and data flow.
• Database Management: Write SQL queries in PostgreSQL to store, manage, and aggregate business data efficiently.
• Cloud Deployment: Deploy, monitor, and debug your solutions on GCP (managing secrets, Cloud Jobs, and Cloud Services).
• AI-Assisted Documentation: Keep a strict habit of documenting what you build, utilizing Claude to help generate thorough, clear internal documentation.

Requirements
 

• Strong Scripting Skills: Professional experience writing clean, maintainable code in Python and/or TypeScript.
• Workflow Orchestration: Experience with automation tools, specifically n8n or code-first orchestrators like Hatchet.
• Web Basics & APIs: Solid understanding of HTTP, REST APIs, authentication mechanisms, and integrating 3rd party services.
• SQL Knowledge: Ability to structure tables, write queries, and handle data aggregation in PostgreSQL.
• Frontend Basics: Experience or comfort with React / Next.js to build simple, functional internal dashboards.
• GCP Experience: Practical knowledge of deploying, debugging, and managing applications on Google Cloud Platform (Secrets, Jobs, Services).
• AI-Fluent workflow: Active use of LLMs (Claude) for code generation, dashboard building, and documentation.
• Communication: Fluent English and a strong habit of documenting work clearly.

What We Offer
 

• Full-time, fully remote position with a flexible working schedule.
• Direct impact on company-wide efficiency—your tools will be used daily by our team.
• Access to cutting-edge AI technologies and modern development stacks (Hatchet, Claude).
• English classes with daily practice & Gym reimbursement program.
• Work with a globally distributed team building infrastructure for the blockchain industry.

We are looking for a senior frontend engineer to help build a modern web platform for technical and data-intensive workflows.

You will work on complex interfaces involving search, metadata, permissions, configuration, long-running processes, and interactive data exploration. The role is a good fit for someone who enjoys turning technically sophisticated systems into clear, reliable user experiences.

What you will do

• Build and maintain the application using React and TypeScript.
• Develop search, filtering, catalogue, and detailed data views.
• Create interfaces for users, organisations, permissions, and secure sharing.
• Build configuration workflows for technical and machine-learning use cases.
• Develop dashboards for usage, processing status, and system activity.
• Integrate OAuth/OIDC-based authentication and access control.
• Design interfaces for asynchronous and long-running backend operations.
• Establish reusable components, testing practices, and frontend architecture.
• Collaborate closely with backend engineers, product, and design.

What we are looking for

• Strong production experience with React and TypeScript.
• Experience building complex, data-intensive web applications.
• Strong knowledge of state management, asynchronous workflows, and API integration.
• Experience with search, filtering, tables, forms, and permission-management interfaces.
• Ability to simplify complex technical concepts through thoughtful product design.
• Familiarity with frontend testing and performance optimisation.
• Experience integrating REST APIs, OAuth, OIDC, or role-based access control.
• Strong attention to usability, interaction quality, and visual detail.

Nice to have

• Experience with Next.js, TanStack Query, Zustand, Redux, or similar tools.
• Familiarity with Three.js, React Three Fiber, WebGL, WebGPU, or other visualisation technologies.
• Experience with developer tools, cloud platforms, analytics, or infrastructure products.
• Knowledge of machine-learning or scientific-computing workflows.
• Experience building multi-tenant B2B products.
• Familiarity with Storybook, design systems, accessibility, and internationalisation.
• Experience with Keycloak or another enterprise identity provider.

We are looking for a senior backend engineer to build a high-performance service for streaming large datasets.

This is not a conventional CRUD backend role. You will work on persistent HTTP/3 connections, asynchronous I/O, object-storage range reads, binary data transfer, authentication, request scheduling, etc.

What you will do

• Design and build the data-streaming service in Python.
• Implement HTTP/3 and QUIC-based client-server communication.
• Integrate with S3-compatible object storage.
• Build request prioritisation, cancellation, retries, caching, and backpressure.
• Implement token-based authentication and fine-grained access control.
• Integrate Python services with native libraries and binary data formats.
• Add metrics, tracing, load testing, and failure recovery.
• Work closely with desktop visualisation and Python/ML client teams.
• Benchmark streaming performance against download-first workflows.

What we are looking for

• Strong production experience with Python.
• Experience with asynchronous Python, task scheduling, and concurrent I/O.
• Experience building high-throughput or low-latency backend systems.
• Good understanding of networking, HTTP, TLS, and binary protocols.
• Practical knowledge of S3, MinIO, Ceph, or similar object storage.
• Experience with streaming I/O, byte-range reads, caching, and memory management.
• Strong performance-profiling and debugging skills.
• Ability to design stable interfaces between independently developed systems.

Nice to have

• Production experience with C++. 
• Experience with HTTP/3, QUIC, WebTransport, or high-performance RPC.
• Background in distributed storage, CDNs, databases, filesystems, or media streaming.
• Familiarity with scientific visualisation, HPC, simulation, or large multidimensional datasets.
• Experience with CUDA or GPU data pipelines.
• Experience with OAuth, OIDC, JWT, and capability-based access.
• Knowledge of Kubernetes and OpenTelemetry.

Dripify is a pioneering, remote-first IT product company specializing in outreach automation products. Our platform empowers businesses by revolutionizing hiring, sales, and marketing communication processes, making interactions more efficient and seamless.

As a Business Development Representative, you’ll play a critical role in the sales process by generating high-quality leads and setting appointments for our Account Executives. Your focus will be on prospecting and qualifying potential clients, building relationships, and driving pipeline growth.

🚀This is your real chance to start or truly boost your career in product sales, surrounded by a strong and supportive team that drives Dripify’s success!

Requirements:

• Fluency in English (both written and spoken).
• 0-2 years of experience in sales development, business development, or a similar role (SaaS experience is a plus).
• Strong verbal and written communication skills, with the ability to engage with C-level executives.
• Ability to handle rejection and stay motivated in a fast-paced environment.
• Excellent research skills, with the ability to find and engage with decision-makers.
• Strong organization and time-management skills.
• Strong listening skills to understand customer needs, uncover pain points, and tailor your approach accordingly.

Responsibilities:

• Maintain accurate and up-to-date records in our CRM (Hubspot).
• Research and identify potential clients using a mix of prospecting tools, databases, and social platforms.
• Research areas of interest for key decision makers and potential routes to engage them.
• Craft well researched, creative outreach campaigns tailored to the findings of your research.
• Professionally and persistently follow up via phone, email, LinkedIn and other means identified from the research.
• Conduct initial introductory and discovery discussions to help qualify potential.
• Book qualified meetings and provide the sales team with detailed, well formatted handover notes from initial discussions.
• Partner with Account Executives to schedule and prepare for sales meetings, ensuring a smooth transition from lead generation to closing.
• Consistently meet or exceed Key Performance Indicators and contribute to the continued hypergrowth of the region.
• Adapt messaging to suit the needs of the local market.

Work conditions:

• 100% remote position, providing flexibility and work-life balance.
• Competitive salary reflecting your skills and expertise.
• 24 days of paid vacation per year to recharge and relax.
• 10 days of paid sick leave.
• Educational opportunities.
• Compensation budget for medical and hobby/sport expenses.
• Generous budget for birthdays and anniversaries.
• Online and offline team events.
• A collaborative and innovative work environment with passionate team members.

Hiring process:

✅ Create a short video — ✅Interview with Talent Acquisition Specialist (45-60min) ✅ Interview with Head of Sales (60 min)— ✅ Test assignment — ✅ Reference check — ✅ Offer

Join a project where scalability, resiliency, and real-time communication are at the core of the engineering challenge. 

We are looking for a Senior Java Developer to help build a high-load multi-channel communications platform used to deliver critical notifications to millions of users worldwide.

As part of Sigma Software, you will work remotely in an international engineering environment and contribute to the development of distributed, event-driven systems with complex delivery pipelines and fault-tolerant architecture.

We at Sigma Software offer the opportunity to influence architectural decisions, work on long-term product development, and collaborate with experienced engineering teams building modern cloud-native solutions.

CUSTOMER

Our customer is a leading EdTech company that uses AI and data-driven technologies to personalize learning experiences, optimize user engagement, and improve marketing effectiveness through advanced audience targeting and analytics.

PROJECT

The project focuses on building a modern multi-channel communications platform capable of delivering critical notifications across email, SMS, voice, and push channels at massive scale. The system supports automated workflows, emergency broadcasts, consent management, reporting and analytics, provider failover strategies, and real-time event processing.

JOB DESCRIPTION 

• Design and implement a scalable event-driven communications platform
• Build highly reliable and fault-tolerant message delivery systems
• Manage large-scale real-time event processing pipelines
• Design and implement multi-channel delivery pipelines across email, SMS, voice, and push channels
• Handle compliance requirements, consent management, and communication policies
• Support emergency and high-priority notification workflows
• Implement provider failover and resiliency strategies to ensure delivery continuity
• Build tracking systems for delivery status, retries, and engagement events
• Design and implement observability, reporting, and analytics infrastructure
• Develop event processing and message orchestration workflows
• Implement provider integrations and external messaging service adapters
• Ensure system scalability, throughput, and performance under high load
• Collaborate with product and engineering teams on communication flows and requirements
• Contribute to architectural decisions and long-term platform evolution
• Ensure operational stability, reliability, and maintainability of the system

QUALIFICATIONS

• At least 5 years of commercial software engineering experience
• Strong experience in Java development
• Proven experience designing and building high-scale messaging, notification, or communication platforms supporting email, SMS, push, or voice channels
• Strong experience integrating with CPaaS and messaging providers such as Twilio, SendGrid, Amazon SES, SNS, Firebase/APNs, Braze, Iterable, or OneSignal
• Solid understanding of event-driven architectures using Kafka, Pub/Sub, Apache Beam, Kafka Streams, Flink, or similar technologies
• Strong knowledge of message delivery semantics, including exactly-once or effectively-once processing, idempotency, deduplication, retries, and reconciliation
• Experience designing scalable streaming pipelines with support for backpressure, dead-letter queues, replay, ordering, and fault tolerance
• Hands-on experience building reliable provider integration layers with failover, rate limiting, webhook processing, and delivery tracking
• Strong understanding of messaging compliance requirements, including TCPA, CAN-SPAM, 10DLC, opt-in/opt-out management, suppression lists, and sender reputation
• Experience designing systems that protect sensitive customer data and minimize PII exposure
• Experience building priority-based delivery architectures for high-volume messaging platforms
• Strong understanding of scheduling and time-based delivery logic, including time zones, quiet hours, recurring schedules, and daylight saving time handling
• Experience implementing safeguards for large-scale messaging, including approval workflows, preview mechanisms, test modes, and blast-radius protection
• Experience designing delivery tracking, reporting, and analytics systems with accurate reconciliation across providers
• Strong knowledge of distributed systems, scalability, reliability, and high-availability architectures
• Excellent problem-solving skills with the ability to build highly reliable, fault-tolerant backend systems
• Upper-Intermediate or higher level of English

WILL BE A PLUS

• Experience with email/SMS deliverability and sender reputation management
• Understanding of A2P 10DLC registration and messaging compliance
• Experience with Voice & TTS solutions
• Knowledge of template management, content rendering, and localization pipelines
• Experience building scheduled or delayed delivery systems on cloud platforms (preferably GCP)
• Understanding of event schema design and idempotent event modeling
• Experience with BigQuery reporting and analytics
• Exposure to regulated environments (e.g., FERPA/COPPA, K-12, education)

PERSONAL PROFILE

• Strong analytical and problem-solving skills
• Ability to work in distributed cross-functional teams
• Proactive approach to ownership and technical decision-making
• Strong communication and collaboration skills
• Ability to work in high-load, fast-paced environments
• Focus on reliability, scalability, and engineering quality

Simulmedia is a trailblazer in the world of data-driven advertising, known for its innovative approach to optimizing ad placements and campaign effectiveness through analytics and machine learning. Our mission is to revolutionize the advertising sector by enabling brands to reach their audiences more effectively.

We are seeking a motivated Middle Data Scientist to join our data science team. The ideal candidate has solid experience with supervised machine learning, strong analytical skills, and is comfortable working with real-world, large-scale data. In this role, you will contribute to building, improving, and maintaining machine learning models that support our advertising products and business decisions.

This position is based in Ukraine. The team primarily works remotely, with occasional in-person meetings in the Kyiv or Lviv office.

Key Responsibilities:

• Develop and maintain supervised machine learning models to support ad targeting, measurement, and campaign optimization.
• Perform data analysis, data validation, and feature engineering on large and complex datasets.
• Collaborate with product, engineering, and analytics teams to translate business needs into data science solutions.
• Evaluate model performance using appropriate metrics and iterate on model improvements.
• Support optimization and experimentation efforts related to advertising performance.
• Assist with deploying models to production in collaboration with engineering teams.
• Monitor model performance and help troubleshoot issues in production.
• Communicate results, insights, and limitations to both technical and non-technical stakeholders.
• Stay up to date with industry best practices in data science and machine learning.

Qualifications:

Education:

• Bachelor’s or Master’s degree in Computer Science, Statistics, Mathematics, Engineering, or a related field.

Experience:

• 2–4 years of experience in data science, machine learning, or a related analytical role.
• Hands-on experience applying machine learning to real business problems.

Technical Skills:

• Proficiency in Python.
• Solid experience with SQL and relational databases.
• Experience with machine learning libraries such as scikit-learn. Experience with TensorFlow or PyTorch is a plus.
• Good understanding of supervised learning techniques such as linear regression, logistic regression, and tree-based models including decision trees, random forests, and gradient boosting.
• Experience with data manipulation and analysis using pandas and NumPy.
• Familiarity with model evaluation techniques and performance metrics.
• Basic understanding of working with production systems or machine learning pipelines is a plus.

Other Skills:

• Strong analytical and problem-solving abilities.
• Ability to work independently while collaborating within a team.
• Clear communication skills and ability to explain technical concepts simply.
• Strong organizational skills and attention to detail.
• Comfortable communicating with U.S.-based teams.

Responsibilities:

Developing the SEO strategy for product-based projects
Promoting websites in competitive and challenging geographic markets (GEOs)
Managing brand protection and monopolizing brand-related search results
Launching and developing brand-aligned satellite sites
Launching affiliate SEO projects for new markets
Analyzing niches, competitors, search results (SERPs), and growth opportunities
Formulating SEO strategies and forecasting traffic
Managing link building, expired domains (drops), and behavioral factors
Overseeing technical SEO and website conversion rates
Analyzing traffic performance and SEO metrics
Coordinating with contractors and sourcing new vendors as needed
Collaborating closely with content, link building, and product teams
 

Requirements:

5+ years of SEO experience
Practical experience promoting sites in challenging GEOs subject to restrictions and blocking
Understanding of anti-blocking mechanisms, cloaking, and satellite/doorway site strategies
Experience launching projects or entering new GEOs from scratch
Strong expertise in On-page, Off-page, and Technical SEO
Solid understanding of the impact of links, expired domains, and behavioral factors
Experience with website conversion optimization and CTA principles
Advanced proficiency with Ahrefs
Experience with Google Search Console and Google Analytics
Knowledge of Google Tag Manager is a plus
Experience managing multiple websites simultaneously
English proficiency: Intermediate (B1-B2) or higher

24PLAY is a gamedev company from Ukraine that has been developing and publishing mobile games since 2019. We are a team of professionals who have launched dozens of popular games and gained over 100 million satisfied players worldwide. Our games include Zombiepunk, Bliezkrieg Assault, Street Dude, and more.

As a Diia City resident, we offer employee reservation starting from the first day of employment.
 

We are currently looking for a Playable Ads Developer to share our core company values:

• Creativity: We actively encourage and embrace each other’s ideas, transforming them into reality through collaboration and innovative thinking.
• Integrity: We commit to providing honest feedback and realistically assessing situations, fostering a culture of trust and transparency.
• Productivity: We strive to optimize our workflows to achieve the best possible results in the shortest timeframe, ensuring efficiency and effectiveness in our operations.
• Uncompromising Quality: Our commitment to excellence drives us to prioritize the quality of our work above all else, ensuring that we consistently deliver outstanding results.
• Healthy Lifestyle: We advocate for a healthy lifestyle and stand against harmful habits, promoting well-being and balance within our team.
   

We are looking for a professional for the role that requires:

• Full-time job;
• Office-based in Kyiv.

Main responsibilities:

• Create 2D and 3D playable ads and creatives to promote mobile games
• Develop gameplay mechanics, game logic, animations, and visual effects
  
  Nice to have:
• Experience working with MRAID and understanding of ad network technical requirements for playables
• Experience creating games on any technology/platform (Unity, Flash, etc.)
  
  Our ideal candidate:
• 0,5+ years of experience working with JavaScript
• Experience building web applications or games using 3D graphics libraries (Three.js, Babylon.js, etc.) or experience with 2D JavaScript libraries such as PixiJS or similar
• Experience with JavaScript physics libraries (Ammo.js, Cannon.js, or similar)
• Solid understanding of 2D/3D math (vectors, matrices, dot/cross product)

Why join our team?

• Fully Legal: Official employment in full compliance with Ukrainian labor legislation, including paid vacation (24 days) and sick leave (unlimited).
• Professional Team: A high-performing group of skilled individuals committed to excellence.
• No Overtime: We prioritize a healthy work-life balance, with no overtime required.
• Stable Payments: No payment delays since the foundation of the company.
• Bonus System: A unique reward system designed to motivate employees by aligning their performance with the company’s financial goals.
• Professional Development: Access to mentorship programs and our internal library for continuous growth.
• Events: Enjoy board games, masterclasses, corporate events, sports activities, and free English classes.

• Comfortable Workspace: A modern office in Kyiv featuring a spacious lounge, fully-equipped kitchen, sports zone, cinema, and complimentary spa facilities for employees.