Jobs at Djinni

Keep IT operations seamless. Build structure. Drive automation.Softsich is a young and ambitious international product tech company that develops scalable B2B digital platforms. We’re on the lookout for an experienced ITSM Engineer / System Administrator who’s ready to take ownership of our internal SaaS ecosystem, cloud services, and corporate network infrastructure.
This role is about building reliable internal IT processes, supporting cloud environments, managing access lifecycle, and driving automation across tools like Google Workspace, Atlassian, and Slack. If you enjoy bringing structure to IT operations and continuously improving systems — let’s talk.

Your key responsibilities will include:

– Managing user lifecycle and access control across corporate systems.
– Handling requests and incidents via HelpDesk.
– Providing remote technical support (AnyDesk, TeamViewer, etc.).
– Administering Google Workspace, Atlassian, Slack (configuration, integrations, automations).
– Supporting and managing cloud environments (AWS, GCP, DO).
– Supporting VPNs, firewalls, Wi-Fi networks, VLANs, routing.
– Managing DNS zones, domain configuration, SSL, and related troubleshooting.
– Configuring and monitoring networking devices (routers, switches, access points).
– Enforcing IT security best practices (least privilege, MFA, access audits).
– Maintaining inventory of IT hardware, services, subscriptions, and licenses.
– Building automations and integrations between internal services.
– Continuously improving IT operations processes.

It’s a match if you have:

– 2+ years of experience as an IT Administrator / ITSM Engineer / System Administrator.
– Strong knowledge of Google Workspace, Slack, and Atlassian administration.
– Experience with Jira Service Management (JSM) and remote support tools.
– Basic administration experience with AWS/GCP/DO.
– Solid understanding of networking: VPN, Firewalls, Wi-Fi, DNS management, VLAN, routing.
– Experience with asset management, licenses, and procurement processes.

Nice to have:
– Experience with automation in Slack and scripting (Bash/Python).
– Experience with MDM solutions.
– Experience with VDI solutions.
– Understanding of ISO27001 / SOC2 requirements.

What we offer:– Flexible schedule and remote format or offices in Warsaw/Kyiv — you choose.
– 24 paid vacation days, sick leaves, and health insurance (UA-based, other locations in progress).
– A supportive, friendly team where knowledge-sharing is part of the culture.
– Coverage for professional events and learning.
– Birthday greetings, team buildings, and warm human connection beyond work.
– Zero joules of energy to the aggressor state, its affiliated businesses, or partners.
Let’s build stable, secure, and scalable IT infrastructure together.


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

We're seeking a talented .NET Developer to help shape the future of blockchain technology in innovative startup. If you're ready to make a real impact in a cutting-edge industry, we'd love to hear from you!
 

Core Competence:
 

• At least 2 years of professional experience in software development with a strong foundation in C#, ASP.NET Core, and Entity Framework.
• Proficiency in managing IIS, MS SQL, Visual Studio, and Docker environments.
• Familiarity with ODBC, LINQ, NUnit, xUnit, NuGet, and RESTful APIs, alongside Git for version control.
• Sound understanding of client-side and server-side architectures.
• Strong analytical thinking, with a structured, math or engineering-oriented mindset and a focus on delivering results.
   

Preferred Qualifications:
 

• Knowledge of ReSharper, experience with Azure, and familiarity with NoSQL databases.
• Experience with AWS and Linux system administration is an asset.
• Active participation in hackathons demonstrates innovative thinking and problem-solving skills.
• Upper-intermediate level of English for clear and effective communication in a global team.
   

What We Offer You:
 

• Competitive Compensation: Your skills and experience will be rewarded with a salary aligned with industry standards and your career ambitions.
• Innovative Work Environment: Be part of a forward-thinking FinTech startup with a culture of continuous learning, including tech talks and participation in hackathons.

• 20 paid vacation days, 3 paid sick days, and a flexible schedule for work-life balance.

   

Привіт!
Ми — Checkbox Group, українська продуктова компанія, що спростила фіскалізацію для тисяч підприємців. Ми продовжуємо зростати та розвивати нашу команду. Зараз ми шукаємо не просто HR-спеціаліста, а стратегічного People Partner, який/яка стане ключовим архітектором/архітекторкою нашої корпоративної культури, процесів та бренду роботодавця.
Якщо ти готовий/готова будувати сильні, data-driven HR-процеси, впливати на успіх компанії та працювати в динамічному середовищі, ця роль для тебе.

Твої основні задачі:

• Формування та оптимізація HR-процесів: Ти будеш будувати та покращувати ключові HR-процеси, такі як адаптація (onboarding), оцінка ефективності (performance review), управління талантами (talent management) та розвиток співробітників.
• Побудова HR-аналітики: Ти будеш працювати з даними — від опитувань та зворотного зв’язку до аналізу трендів продуктивності. Твої висновки та рекомендації стануть основою для стратегічних рішень щодо управління командою.
• Розвиток бренду роботодавця: Ти будеш активно розвивати бренд Checkbox як привабливого та надійного роботодавця, що сприятиме залученню висококваліфікованих фахівців.
• Партнерство з менеджерами: Ти станеш надійним партнером для керівників команд. Допомагатимеш їм у вирішенні складних people-питань, надаватимеш коучинг та підтримку, щоб забезпечити ефективну роботу та розвиток їхніх команд.
• Розвиток корпоративної культури: Ти будеш створювати та впроваджувати ініціативи, які зроблять нашу компанію місцем, де людям комфортно, цікаво та є можливості для професійного зростання.
• Ведення HRM-системи: Забезпечуватимеш актуальність та коректність даних у системі, використовуючи їх для аналітики.

• Досвід від 2-х років на позиції People Partner, HR Business Partner або HR Manager.
• Практичний досвід побудови та оптимізації HR-процесів з «нуля» або їх суттєвого вдосконалення.
• Сильні аналітичні навички: Досвід роботи з HR-метриками, аналізом даних та прийняттям рішень на основі фактів, а не лише інтуїції.
• Висока адаптивність та вміння швидко переключати контексти: Наша група компаній включає понад 10 бізнес-юнітів, тому ти маєш бути готовим/готовою швидко адаптуватися до їхніх потреб та шерити свій фокус між різними командами.
• Досвід в управлінні та розвитку бренду роботодавця.
• Вміння ефективно взаємодіяти з керівниками та виступати для них експертом у питаннях управління персоналом.
• Проактивність та стратегічне мислення: Здатність не лише реагувати на запити, а й передбачати потреби бізнесу та команди, пропонуючи нові, креативні рішення.
• Досвід організації заходів та внутрішніх ініціатив, які зміцнюють корпоративну культуру.
• Вміння працювати з конфіденційною інформацією.

• Повністю віддалений формат співпраці;
• 24 робочі дні відпустки та оплачувані лікарняні;
• Стабільна виплата зарплати двічі на місяць;
• Підтримка професійного розвитку: курси, конференції, сертифікації;
• Курси англійської мови;
• Мінімум бюрократії в ухваленні рішень.

Хочеш впливати на розвиток сильного продукту та культури довіри?Надсилай резюме — і давай знайомитись!

N-iX is a global software development service company that helps businesses across the globe create next-generation software products. Founded in 2002, we unite 2,400+ tech-savvy professionals across 40+ countries, working on impactful projects for industry leaders and Fortune 500 companies. Our expertise spans cloud, data, AI/ML, embedded software, IoT, and more, driving digital transformation across finance, manufacturing, telecom, healthcare, and other industries. Join N-iX and become part of a team where your ideas make a real impact.
 

We are looking for a Senior/Lead Data Analyst to join our team and contribute to one of Europe's leading online automotive marketplaces, serving 30+ million monthly users across 18 countries. 

As a Senior/Lead Data Analyst, you will play a key role in driving data-informed marketing decisions while supporting strategic business initiatives, including mergers and acquisitions (M&A). Working closely with marketing, product, engineering, and analytics teams, you will help integrate data across multiple organizations, harmonize KPIs and reporting, and deliver actionable insights that improve marketing performance across channels and brands.
 

This role sits at the intersection of marketing, analytics, and business strategy. You will partner with senior stakeholders to translate complex business challenges into scalable analytical solutions, while leveraging AI tools to improve the speed, quality, and impact of analytics. The team embraces AI as a core part of its daily workflow, and we are looking for someone who shares this mindset.
 

Responsibilities:

• Support strategic integration and M&A initiatives by assessing existing data landscapes, integrating marketing data from acquired businesses, aligning KPI definitions, attribution methodologies, and reporting, and ensuring a seamless transition into the client's analytics ecosystem.
• Partner with business, product, engineering, and analytics teams across multiple organizations to identify integration requirements, reconcile data discrepancies, establish scalable reporting solutions, and ensure business continuity throughout integration projects.
• Design and implement scalable data models and pipelines within the client's Data Lake to integrate, harmonize, and manage marketing data across channels, brands, and acquired businesses.
• Build and maintain engaging dashboards to monitor demand, user acquisition, and marketing efficiency, following data visualization best practices to deliver clear and actionable insights.
• Collaborate with fellow analysts to evaluate performance across key platforms — including Google Analytics, Adjust, AppsFlyer, Google Ads, Meta, and Criteo — and translate findings into actionable business recommendations.
• Contribute technical expertise and business judgment to deep-dive analyses and executive reports for senior leadership, and lead cross-functional projects end to end, managing timelines, risks, and stakeholder communication.
• Leverage AI tools and automation to increase the efficiency, quality, and scale of analytical work — from data preparation and insight generation to reporting and stakeholder communication.

Requirements:

• 5+ years of experience in marketing analytics, ideally within online marketplaces or B2C/B2B digital businesses, with a strong understanding of online and app marketing, campaign optimization, and budget allocation.
• Experience supporting large-scale data integration projects, mergers and acquisitions, or complex organizational integrations, including data migration, KPI harmonization, reporting consolidation, and stakeholder management.
• Proficiency in SQL and hands-on experience building data pipelines and ELT workflows using tools such as Airflow and dbt, with familiarity across cloud data platforms such as BigQuery, Redshift, or Snowflake.
• Strong experience with BI and dashboarding tools (Tableau, Amazon QuickSight, Power BI, or similar), combined with a solid understanding of data visualization best practices.
• Deep understanding of Google Analytics, mobile measurement platforms (Adjust, AppsFlyer), and major advertising platforms (Google, Meta, Criteo), including tracking implementations and reporting structures.
• A proven track record of independently leading cross-functional analytics initiatives across multiple business units and navigating complex stakeholder environments during periods of organizational change.
• A proactive approach to integrating AI tools into analytical workflows, with genuine curiosity about how AI can improve the speed, quality, and impact of analytical work.
• Excellent verbal and written English skills.

Nice to have:

• Experience with web and app attribution models.
• Experience with Amazon QuickSight.
• Experience with Google Search Console and Google Tag Manager.
• Experience working with advertising platforms and Mobile Measurement Platforms (MMPs).

Dwarf Engineering is a Ukrainian junior manufacturer that covers the full cycle of development and production of autonomous systems for the front lines. We are a team of punks and hackers in the military technology field developing autonomy modules for robotic systems.
We're missing: a skilled C++ Engineer with 2+ years of experience who's excited to work on physics-related systems.

Required skills:

• 2+ years of professional experience in C++ and related libraries/frameworks;
• Strong background in mathematics and physics;
• Hands-on experience with 3D objects, or at least working knowledge of key concepts such as vertices, normals, and matrix transformations;
• Experience developing image or video processing algorithms;
• Solid understanding of OOP principles and design patterns;
• Proficiency in Linux;
• Experience with Git, Docker, and CI/CD pipelines;

Will be a plus:

• Knowledge of CV/AI libraries: Familiarity with popular computer vision or machine learning frameworks such as OpenCV, TensorFlow;
• Experience with Unreal Engine is a strong advantage.
   

👾 In this raid, you'll be responsible for:

• Designing, developing, and tuning object detection and tracking algorithms for robotics control;
• Participating in real-world validation and testing of vision-based models;
• Preparing detailed reports on algorithm performance and development progress.
   

👾 We offer:

• Official employment from day one;
• Military record assistance and legal support;
• Timely salary payments;
• Corporate lunches;
• Professional growth within a startup environment and a young, dynamic team;
• Ergonomic, height-adjustable desks;
• Office equipped with a generator and a stable internet connection. 

We are looking for an experienced Technical Project Manager who will work with our DevOps and Infrastructure team to plan and manage their projects and tasks for successful and timely delivery. You will work with teams and stakeholders locally and globally to provide and improve all phases of project prioritization, planning, delivery, and progress reporting.
Also, this role requires engagement with the Business Development Department to work on the Pre-Sales Project and drive the initial project phase in a company.

If you are passionate about delivering exceptional support and service to clients and have a strong background in Project Management, we encourage you to apply for this exciting opportunity to join our friendly team.

Responsibilities:

• Be the main point of contact for multiple projects at a given time.
• Communicate with the Business Development Department and closely work with the Pre-Sales Team.
• Manage resourcing plans — planning team tasks for the sprint and overall project delivery. Manage resources between multiple projects, depending on the priorities.
• Work with stakeholders and teams to prepare executive summaries that have estimated timelines and resource impact so prioritization and strategic decisions can be made.
• Work with the team to properly organize and manage projects and tasks in Jira.
• Manage project and task prioritization for the team, and participate in the planning.
• Build meaningful and trackable project plans, including dependencies and potential risks.
• Provide regular and meaningful status updates to the leadership and other teams.

• Working experience - 3+ years on PM positions.
• Experience with team resourcing, short and long-term.
• Strong communication skills — clear and direct written and verbal. Attention to detail.
• Strong organizational, problem-solving, and interpersonal skills.
• Proven ability to prioritize and manage multiple tasks, projects, and changing priorities.
• Experience building Gantt charts within an Agile environment.
• Experience working with Atlassian products and project management tools.
• English level — B2 or above.

• Experience managing projects and tasks related to DevOps and Infrastructure for a few years
• Proficient with PowerPoint or other presentation software.

• Official B2B contract with Canadian company;
• Compensation for medical insurance (for our employees based in UA);
• Flexible working hours (start at 8.00-11.00 o'clock);
• Engaging projects with opportunities for career growth;
• Certifications, Udemy courses;
• Corporate events, team-building activities,
• Gifts and recognition from the company;
• A friendly, open, and supportive team culture without excessive bureaucracy.

About Us

BimBimPet LLC is a growing e-commerce company specializing in pet products. We build direct partnerships with brands and sell across Amazon, Walmart, and BimBimPet.com.

We are looking for a motivated and results-driven B2B Sales Manager to acquire new brands and develop existing partnerships.

Key Responsibilities

• Research and contact potential brands through calls, emails, LinkedIn, and meetings.

• Build and manage a pipeline of new brand opportunities.

• Negotiate and onboard new brands.

• Develop existing brand relationships and contracts.

• Negotiate better pricing, discounts, payment terms, and commercial conditions.

• Work toward securing exclusive partnerships.

• Expand brands across Amazon, Walmart, and BimBimPet.com.

• Maintain accurate CRM records and follow-ups.

• Build strong, long-term relationships with brand partners.

KPIs

• New B2B partnerships acquired

• Revenue generated from acquired brands

• Additional discounts and improved terms negotiated

• Calls and emails completed

• Existing partnerships developed to higher levels

Compensation & Bonus

• Base Salary: $750/month

• 1% of net sales generated from each new brand successfully onboarded.

• The 1% commission is paid for 12 months per brand, starting from the first purchase order.

• Bonuses are calculated and paid monthly.

• Expected total earnings: approximately $850–$1,000+ per month, depending on performance.

Work Schedule

• Monday–Friday

• 2:00 PM–10:00 PM Armenia Time

• Full-time, remote

• 8 working hours + 1-hour separate break

• 3-month probationary period

Requirements

• Strong written and spoken English

• Excellent communication and negotiation skills

• Comfortable with calls, emails, and business meetings

• Strong organizational and follow-up skills

• Ability to work independently and take ownership

• Results-driven and commercially minded

• Experience in B2B sales, business development, or brand partnerships is preferred

We are looking for an experienced Senior Java Full Stack Engineer to join our development team.

Our customer – integrated Shipping Services has set itself apart as an independent carrier with a fresh, unique approach. His strategy as a global niche carrier offers distinctive advantages to customers worldwide. We have created a smart, efficient network that ensures stable, reliable services, and we have made it our mission to focus on the needs of our customers, which stand at the heart of all our decisions. The main idea of our product operates in select trades, where it has a competitive advantage and where it can provide superior service. We maintain a flexible partnership approach with other major carriers, and our new line structure is a much-needed alternative to customers concerned about the current alliance-dominated market.

Responsibilities:

• Hands-on full-stack development of innovative applications
• Owning the entire development cycle, including design, architecture, development, and DevOps
• Working in XP with Remote pairing
•  

Requirements:

• BS degree in Computer Science or equivalent combination of education and experience
• 5-6+ years of full-stack development
• 5-6+ years of experience in the following technologies: Java, Spring
• Experience with Functional Programming and Java Streams
• 2+ years of experience in front-end development with React
• Experience with developing a reactive UI (Reactive JS)
• 2+ years of experience in TDD/BDD development in the following frameworks: Junit, Jasmin, Mockito, Protractor/Selenium
• 2+ years of experience in micro-services-based architecture and tools (Spring Boot/Cloud)
• Experience in DevOps development and Jenkins
• Experience in development in Kotlin – an advantage
• Experience in designing, developing, and deploying cloud/hybrid-based solutions
• Experience in developing and deploying in container-based environments (Kubernetes, Cloud Foundry)
• Familiarity with the following design concepts: micro-services, service discovery, circuit breaker
• Self-starter with the ability to appropriately prioritize and plan complex work in a rapidly changing environment
• Versatility and the capability to switch easily between different tasks and technologies
• Experience in assessing a broad range of information solutions and products
• Strong critical thinker with problem-solving aptitude
• Good English - verbal and written

V4Scale is not just a company - it's an innovation powerhouse that enhances the R&D capabilities of prominent Israeli and US technology firms, with headquarters in Tel Aviv. We do this by harnessing the incredible talents of our diverse global remote workforce, and we welcome candidates from any location worldwide.

We are currently looking for C/C++ Networking SW Engineer for our Mixed Development Team working in cooperation with Network Security company based in Tel Aviv.

This is a challenging and highly technical role. You will take ownership of the Switch ASIC SDK, work in a complex hardware/software environment, and integrate new networking technologies. The position requires a high level of initiative, curiosity, and hands-on involvement in day-to-day development.
This is an excellent opportunity for engineers who enjoy solving complex technical problems and want to become experts in low-level networking software.

Experience: 5+ years

Key Skills: C++, Switching, Routing, Firewalls

Requirements:

• Proven expertise in C++ development in real-time operating system environments.
• Strong networking knowledge, including TCP/IP, routing protocols (BGP, OSPF), switching, VPNs, and network security concepts such as firewalls and IDS/IPS.
• Experience with Python, Linux distributions, Git, and Docker — an advantage.

• English level sufficient for participating in meetings (B2 or higher).

   

We offer:

• Remote work, mixed international team, cutting-edge technologies, and flexible working hours.
• The project that you are not ashamed to write about in your resume.
• High salaries and bonuses.
• A friendly team with experienced mentors instead of bosses.

JetArt Games is a modern product company in the field of GameDev, creating innovative gaming solutions.
We develop high-performance gaming systems with flexible architecture and implement a full development cycle - from idea and R&D to architectural design, client logic, analytics and launch of the finished product.
Combining technological expertise, creative approach and modern engineering practices, we create a gaming experience focused on quality, stability and long-term development of the product.

With ambitious plans for growth and expansion into new international markets, we are actively scaling our operations.

We are looking for a Senior Slot Game Producer with a proven track record in the iGaming industry to lead the creation of high-quality, innovative slot experiences. If you have deep market knowledge, a strong creative vision, and are ready to own the direction of our slot portfolio - we want to hear from you.

Key Responsibilities:

• Own and drive the creation of new slot game concepts - from the first idea to post-launch performance analysis;
• Invent original mechanics and game features that stand out in a competitive market;
• Research and select trending features, bonus modes, and player engagement patterns;
• Define and maintain the creative and technical vision for each slot, in collaboration with game designers, math developers, artists, and audio teams;
• Regularly pitch and present concepts and progress updates to internal stakeholders and leadership;
• Playtest and review games in development, ensuring they meet or exceed product standards and player expectations;
• Be the go-to person for the team on all gameplay-related questions and decisions;
• Participate in certification documentation review and support test labs when needed;
• Help shape the long-term strategy and direction of our slot game portfolio.

Desired skills and requirements:

• 5+ years of experience as a Slot Game Producer, Product Owner, or Game Designer in a leading real-money slots company;
• A portfolio of successful live slot games with measurable market impact (high revenue, retention, or visibility);
• Deep knowledge of slot game mechanics, math models, art styles, UX, sound, and animation workflows;
• Strong understanding of current slot trends across different regions and platforms (mobile, web, land-based);
• Confident in market analysis and competitor benchmarking to generate relevant and creative product ideas;
• Excellent project management and presentation skills - able to clearly communicate game vision and rationale to both creative and technical teams;
• Fluent English - both written and spoken.
   

What we offer:

• Lack of bureaucracy in decision-making processes and the ability to directly influence the product/project.
• Competitive salary aligned with the IT/iGaming market and a comprehensive social package (medical insurance, gym membership compensation, lunch delivery reimbursement, etc.).
• Comfortable office in Kyiv (walking distance from Vasylkivska metro station);
• Paid vacation — you will have 18 working days of paid vacation and 5 extra days off - wedding, birth of a child, unforeseen events, etc.;
• Referral bonus — we truly value it when team members refer friends, and we offer a bonus for recommending trustworthy candidates.
• Relocation support — changing your city of residence often comes with added expenses, and our relocation bonus helps you navigate this transition stress-free.

We are looking for an experienced Senior Java Full Stack Engineer to join our development team.

Our customer – integrated Shipping Services has set itself apart as an independent carrier with a fresh, unique approach. His strategy as a global niche carrier offers distinctive advantages to customers worldwide. We have created a smart, efficient network that ensures stable, reliable services, and we have made it our mission to focus on the needs of our customers, which stand at the heart of all our decisions. The main idea of our product operates in select trades, where it has a competitive advantage and where it can provide superior service. We maintain a flexible partnership approach with other major carriers, and our new line structure is a much-needed alternative to customers concerned about the current alliance-dominated market.

Responsibilities:

• Hands-on full-stack development of innovative applications
• Owning the entire development cycle, including design, architecture, development, and DevOps

• Working in XP with Remote pairing

   

Requirements:

• BS degree in Computer Science or equivalent combination of education and experience
• 5-6+ years of full-stack development
• 5-6+ years of experience in the following technologies: Java, Spring
• Experience with Functional Programming and Java Streams
• 2+ years of experience in front-end development with React
• Experience with developing a reactive UI (Reactive JS)
• 2+ years of experience in TDD/BDD development in the following frameworks: Junit, Jasmin, Mockito, Protractor/Selenium
• 2+ years of experience in micro-services-based architecture and tools (Spring Boot/Cloud)
• Experience in DevOps development and Jenkins
• Experience in development in Kotlin – an advantage
• Experience in designing, developing, and deploying cloud/hybrid-based solutions
• Experience in developing and deploying in container-based environments (Kubernetes, Cloud Foundry)
• Familiarity with the following design concepts: micro-services, service discovery, circuit breaker
• Self-starter with the ability to appropriately prioritize and plan complex work in a rapidly changing environment
• Versatility and the capability to switch easily between different tasks and technologies
• Experience in assessing a broad range of information solutions and products
• Strong critical thinker with problem-solving aptitude

• Good English - verbal and written

   

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

We are looking for a senior frontend engineer to build high-performance 3D scientific visualization directly in the browser.

You will work at the intersection of frontend engineering, GPU programming, and large-scale data visualization. The core challenge is making complex 3D and time-varying datasets interactive in the browser without requiring users to download or fully load them first.

What you will do

• Build browser-based 3D visualization using TypeScript and WebGPU.
• Render large meshes, point clouds, volumetric fields, and other scientific data.
• Integrate visualization with asynchronous and random-access data streaming.
• Design efficient GPU buffer management, caching, and incremental scene updates.
• Build React-based UI around the visualization experience.
• Profile and optimize CPU, GPU, memory, and network performance.

• Work closely with systems, backend, and GPU engineers on end-to-end data delivery.

   

What we are looking for

• Strong production experience with TypeScript / JavaScript.
• Practical experience with WebGPU, or deep WebGL experience with an interest in moving to WebGPU.
• Strong understanding of performance optimization in browser applications.
• Experience with React or another modern frontend framework.
• Good knowledge of vector math, coordinate systems, cameras, transforms, and spatial data structures.

Nice to have

• Experience with Three.js, Babylon.js, vtk.js, React Three Fiber, or custom rendering engines.
• WGSL, GLSL, CUDA, Vulkan, DirectX, or Metal experience.
• Scientific visualization experience with ParaView, VTK, VisIt, or similar tools.
• Volume rendering, isosurfaces, unstructured meshes, point clouds, particles, or large geometry.
• LOD systems, spatial partitioning, octrees, BVHs, or GPU-driven rendering.
• Background in CAD, simulation, geospatial, medical imaging, games, or visualization software.

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.

We are looking for a senior C++ engineer to build a high-performance service for streaming large scientific and engineering datasets.

This is not a conventional CRUD backend role. You will work on asynchronous networking, HTTP/3 and QUIC, object-storage range reads, binary data transfer, native library integration, request scheduling, and bounded-memory data pipelines.

What you will do

• Design and implement the data-streaming service in modern C++.
• Build persistent HTTP/3 and QUIC-based client-server communication.
• Stream selected regions of large datasets without downloading complete files.
• Integrate with S3-compatible object storage and native data-processing libraries.
• Implement asynchronous request scheduling, prioritisation, cancellation, retries, caching, and backpressure.
• Design stable binary and JSON interfaces between independently developed components.
• Implement token-based authentication and fine-grained access control.
• Optimise memory allocation, copying, concurrency, and end-to-end throughput.
• Add metrics, tracing, load testing, and failure recovery.
• Collaborate with visualisation, machine-learning, backend, and systems engineers.

What we are looking for

• Strong production experience with modern C++17/20.
• Experience building high-throughput, low-latency, or data-intensive systems.
• Strong understanding of asynchronous and concurrent programming.
• Good knowledge of networking, HTTP, TLS, and binary protocols.
• Experience with streaming I/O, byte-range access, buffering, caching, and memory management.
• Practical knowledge of S3, MinIO, Ceph, or similar object-storage systems.
• Strong debugging, profiling, and performance-optimisation skills.
• Experience designing reliable APIs and component boundaries.
• Familiarity with Linux systems programming and production service operation.

Nice to have

• Experience with HTTP/3, QUIC, WebTransport, or high-performance RPC.
• Experience with zero-copy or low-copy data paths.
• Experience integrating C++ libraries with Python
• Familiarity with CUDA or GPU-oriented data pipelines.
• Background in distributed storage, databases, CDNs, filesystems, media streaming, HPC, or scientific visualisation.
• Experience with OAuth, OIDC, JWT, and capability-based access.
• Knowledge of Kubernetes and OpenTelemetry.

We are an international fintech company that has been operating in the Spanish online lending market since 2025. We are looking for a Meta / Facebook Ads Specialist who will be responsible for launching, optimizing, and scaling advertising campaigns in Meta Ads (Facebook / Instagram) for our mobile application.

We are looking for a specialist who understands the full user journey — from the first ad impression on Meta / Facebook through installation, registration, key in-app events, and the final business result.

What we offer:

• Competitive salary with the opportunity for salary reviews based on your performance and results.
• Fully remote work.
• The opportunity to work with our own mobile product and directly contribute to its growth and scaling.
• Access to modern analytics, tracking, and automation tools.
• Direct collaboration with marketing, analytics, design, and development teams without unnecessary bureaucracy.
• The opportunity to test new approaches, scale successful advertising campaigns, and implement your own ideas.
• A results-driven team focused on fast decision-making and professional development.

Responsibilities:

• Launch, optimize, and scale advertising campaigns in Meta Ads / Facebook Ads (Facebook and Instagram).
• Promote our mobile application through Meta Ads and Facebook Ads, focusing on installations, registrations, and subsequent target user actions.
• Analyze the full user funnel: impression → click → installation → registration → target action.
• Optimize Meta Ads / Facebook Ads campaigns based on in-app events.
• Monitor and improve key performance metrics: CPI, CPA, CAC, CPE, ROAS, LTV, Retention, ARPU.
• Work with AppsFlyer or Adjust and ensure accurate event tracking between the application, MMP, and Meta.
• Test new audiences, creatives, offers, and advertising strategies in Meta Ads / Facebook Ads.
• Analyze traffic quality, identify growth opportunities, and scale successful campaigns.

• Prepare regular reports and collaborate with development, design, and analytics teams.

   

Requirements:

• 2+ years of experience working with Meta Ads / Facebook Ads.
• Hands-on experience promoting mobile applications through Meta (Facebook / Instagram).
• Experience with AppsFlyer or Adjust is required.
• Experience in performance advertising.
• Experience working in highly competitive or “grey” verticals: fintech, lending, loans, crypto, gambling, betting, or related industries.
• Hands-on experience launching Meta / Facebook Ads campaigns focused on installations, registrations, and subsequent conversions.
• Understanding of Meta SDK, Meta Pixel, Conversion API, and mobile attribution principles.
• Experience optimizing Meta Ads / Facebook Ads campaigns based on in-app events.
• Strong understanding of key performance metrics and the ability to analyze mobile traffic quality.
• Strong analytical thinking, independence, and a results-oriented mindset.

Tools:

• Meta Ads Manager
• Facebook Ads
• Meta Events Manager
• Facebook / Instagram
• AppsFlyer or Adjust
• Firebase
• Google Analytics 4
• Looker Studio, Power BI, Metabase, or similar BI systems
• Excel / Google Sheets
• Keitaro, Binom, RedTrack, or other trackers

• CRM and internal analytics systems

   

Nice to have:

• Experience in fintech, lending, payday loans, or MFOs.
• Experience promoting Android APKs or PWAs.
• Hands-on experience buying mobile traffic through Meta / Facebook Ads.
• Understanding of SKAdNetwork, ATT (App Tracking Transparency), and iOS attribution specifics.
• Experience with A/B testing creatives and scaling advertising accounts.
• Experience managing large advertising budgets.
• Understanding of post-conversion metrics: approve rate, retention, LTV, repeat loans, or repeat purchases.