Jobs at Djinni

About Archysoft

Archysoft is a software development company with over 10 years of experience delivering solutions to clients across the United States and Western Europe.

We are looking for a Senior iOS Developer to maintain and further develop a mature native iOS application for managing Bluetooth-enabled devices. The product also includes encrypted chats, audio and video calls, media functionality, and a companion Apple Watch application.

The project has been actively developed since 2018 and includes a large Swift codebase, multiple application targets, regional builds, and integrations with physical devices.

In this role, you will:

• Maintain and further develop the native iOS application;
• Investigate production issues and crashes;
• Implement new features and support new iOS versions and devices;
• Work with Bluetooth Low Energy, custom device protocols, background connections, and OTA firmware updates;
• Maintain WebRTC calls, CallKit integration, encrypted chats, and secure local storage;
• Support the Apple Watch application and background audio functionality;
• Manage TestFlight and App Store releases;
• Maintain multiple application targets and regional configurations;
• Update dependencies and gradually improve legacy code;

• Participate in code reviews and collaborate with development and QA teams.

   

Required experience and skills

• 5+ years of commercial iOS development experience;
• Expert knowledge of Swift;
• Strong commercial experience with UIKit, Storyboards, XIB, Auto Layout, and custom views;
• Strong experience with RxSwift, RxCocoa, and reactive programming;
• Practical experience with CoreBluetooth and BLE, including GATT, background modes, and connection stability;
• Ability to read and modify Objective-C code;
• Experience with local databases, Keychain, and sensitive or encrypted data;
• Strong knowledge of Swift Package Manager;
• Experience maintaining large multi-target Xcode projects;
• Experience with fastlane, TestFlight, and App Store releases;
• Strong production debugging skills;
• Ability to work independently;

• English level B2 or higher.

   

As a plus

• Experience with RxBluetoothKit and OTA/DFU firmware updates;
• WebRTC and CallKit experience;
• Apple Watch or watchOS development experience;
• Experience with end-to-end encryption technologies such as Olm or Matrix;
• Experience with Realm and encrypted local storage;
• GitLab CI, fastlane Match, and self-hosted macOS runners;

• Experience supporting applications for the Chinese market.

   

Technology stack

Swift, Objective-C, UIKit, MVVM, RxSwift, RxCocoa, Moya, Alamofire, CoreBluetooth, RxBluetoothKit, Realm, WebRTC, CallKit, Firebase, SPM, GitLab CI, fastlane, watchOS.

What we offer

• Fully remote, full-time cooperation;
• A long-term product with an established user base;
• Work with complex native mobile functionality and physical devices;
• Professional development plan and regular feedback;
• Compensation for approved courses and certifications;
• 20 paid working days per year for vacation and sick leave;

• Salary reviews based on performance and professional growth.

   

Interview process

• Introductory interview with a recruiter;
• Technical interview;
• Final interview with the client or project representative.

Core Responsibilities
* Launching and managing advertising campaigns across multiple traffic sources (Meta/Facebook Ads, Google UAC, Unity Ads, Moloco, Taboola and other native ad networks).
* Daily campaign optimization to achieve target KPIs (ROI, CPA, EPC, uEPC, CR, LTV).
* Performance analysis and decision-making based on data.
* Creating testing plans and running A/B tests for creatives, audiences, placements and bidding strategies.
* Finding profitable combinations of GEO / Offer / Creative / Audience / Traffic Source.
* Scaling profitable campaigns while maintaining target profitability.
* Monitoring traffic quality and compliance with platform and partner requirements.
* Preparing daily/weekly reports.
* Following internal processes, security policies and confidentiality requirements.
⸻
Requirements
* 2+ years of experience as a Media Buyer / User Acquisition Manager.
* Experience with one or more traffic sources:
   * Meta (Facebook) Ads
   * Google UAC
   * Unity Ads
   * Moloco
   * Taboola
   * Other Native Ad Networks
* Strong understanding of performance marketing metrics:
   * ROI
   * CPA
   * EPC
   * uEPC
   * CTR
   * CR
   * CPC
   * CPI
   * LTV
* Experience launching and scaling mobile applications and link.
* Strong analytical skills and data-driven decision making.
* Experience with tracking platforms (Keitaro).
* Experience with A/B testing.
* Ability to evaluate and improve creative performance.
* Self-driven, responsible and result-oriented.
⸻
Nice to Have
* Experience in Dating vertical.
* Experience with Android/iOS apps.
* Experience with affiliate marketing.
* Experience working with white/black lists.
* Experience with automated bidding strategies.

Where high-stakes experience meets human-first communication.

VIP — it’s not “support.” It’s working with a limited pool of top-tier players where attention, accuracy, and genuine human connection matter.
If you enjoy meaningful conversations, reading signals, and treating every detail with care — this role is for you.

🎯 What You’ll Be Doing

1. Managing VIP Players

• Daily communication via chat & email (EN)
• Warm, personal messages and soft-touch engagement
• Celebrations, check-ins, answering questions, and guiding players through their journey

2. Working With Bonuses

• Issuing SC/FS within clear, structured limits
• Keeping accurate records of every decision
• Following the no–double-subsidizing policy

3. Player Monitoring & Activity Tracking

• Watching for purchase patterns, drops in activity, and unusual behavior
• Handling players across Tier 4 → Tier 1
• Updating player profiles, adding notes, preferences, and risk insights

4. Anti-Abuse & Anti-Fraud Awareness

• Spotting red flags early
• Avoiding bonus allocation to questionable accounts
• Escalating suspicious cases to Head of VIP / Compliance

5. Cross-Team Collaboration

• Passing cases to Support, Finance, Compliance when needed
• Following internal VIP flows smoothly and consistently
   

🌟 What We Expect From You

• Excellent, calm, and clear communication with players
• English at Upper-Intermediate level or higher — confident written communication in EN
• Ownership of your decisions and actions
• Strong attention to detail — especially in text
• Desire to grow beyond simple ticket handling
• Openness to learning the VIP style: tone, communication, tier logic
• Confidence and stability when working with high-value players
   

💚 What We Offer

• Higher financial motivation compared to support roles
• Competitive salary with potential to grow as you take on more responsibility
• A role where your decisions directly influence VIP retention and revenue
• Structured schedule:
  • Start: 5/2, 8-hour shifts + 1-hour break
  • Later: possible transition to 2/2, 12-hour shifts

We are looking for a detail-oriented and proactive QA Engineer to join our team. This is a hybrid quality engineering role with a strong focus on both manual and automated testing.

Required Qualifications

• 4+ years of hands-on experience in software quality assurance;
• Proven experience in test automation and a strong interest in expanding automation coverage;
• Understanding of automation frameworks, test design principles, and CI/CD practices;
• Proficiency in API testing and interpreting API documentation, including endpoints, authentication methods, request/response structures, and JSON payloads;
• Experience using Postman or similar API testing tools;
• Hands-on experience with Azure DevOps, including work item management, project hierarchies, iterations, and workflows;
• Experience with Azure DevOps Test Plans, Test Cases, and bug tracking;
• Solid SQL knowledge and practical experience working with databases;
• Upper-Intermediate (B2+) English proficiency, both written and spoken;
• Experience with AI-powered tools for software testing, quality assurance, or productivity enhancement;
• Strong communication skills and the ability to work effectively both independently and as part of a team.

Responsibilities

• Perform exploratory, functional, regression, and automation testing activities;
• Design, develop, execute, and maintain manual and automated test cases;
• Develop and enhance automated test suites to improve test coverage and efficiency;
• Create and maintain test documentation, including test plans, test cases, and test reports;
• Execute comprehensive API testing and validate API contracts, including endpoints, authentication methods, request/response structures, and JSON payloads;
• Utilize Postman or similar tools for API testing;
• Identify, document, prioritize, and track defects with clear and detailed reproduction steps;
• Analyze test results and provide actionable feedback to stakeholders;
• Collaborate closely with developers, business analysts, and other team members throughout the software development lifecycle;
• Contribute to continuous improvement initiatives related to QA processes, testing strategies, and automation frameworks;
• Utilize Azure DevOps for work item management, test planning, test execution, and defect tracking.

Location: Remote form EU, occasional business trips to Munich
Languages: English and German
Type of the project: SAP S/4HANA Transformation

Requirements

Mandatory
• 8–10+ years of experience in SAP Basis Administration.
• Deep understanding of SAP System Landscape Architecture.
• Hands-on experience in SAP S/4HANA Transformation Projects.
• Expertise in SAP HANA Database Administration.
• Experience with: SAP Installation; System Copy; Upgrades; Migration; Performance Tuning; Monitoring.
• Experience in SAP technical architecture design.
• Excellent technical documentation skills.
• Experience in client-facing roles and technical consulting.
• Strong communication skills.
• Fluent German.
• Good English.

Nice to have
 

• SAP Certifications.
• Experience in international enterprise-scale projects.
• Experience with high‑load SAP landscapes.
• Knowledge of SAP Solution Manager.
• Experience with Cloud infrastructure (Azure/AWS/GCP for SAP).
• Experience in SAP Basis automation.

Key Responsibilities

• Advising clients on the analysis, optimization, and development of their SAP Basis Landscape.
• Designing and overseeing SAP Basis architecture.
• Preparing technical documentation and establishing documentation standards.
• Providing technical support for migration projects and transitions to SAP S/4HANA.
• Architectural consulting on the evolution of the SAP System Landscape.
• Developing technical roadmaps and strategic recommendations.
• Consulting on SAP HANA Database, including: Database Architecture; Performance Optimization; Monitoring; Migration.
• Supporting and optimizing SAP system performance.
• Conducting knowledge transfer sessions for the client's internal teams.
• Coordinating technical requirements with all project stakeholders.
• Collaborating with infrastructure teams and architects.

Are you passionate about bringing ideas to life through captivating visuals and dynamic motion design? Codefinity, a leading online learning platform, is looking for a talented Graphic & Motion Designer to join our marketing team. In this role, you’ll bring campaigns to life through compelling graphics and dynamic motion design.

Requirements:

• 2+ years of experience in performance marketing design (Facebook Ads).
• Proficiency in Figma and Adobe Creative Suite (After Effects, Photoshop).
• Strong understanding of the fundamentals of composition, typography, and color theory.

• Ability to work within brand guidelines while delivering innovative and fresh ideas.

   

Key Responsibilities:

• Collaborate with the marketing team to create visually striking designs for online campaigns and social media.
• Actively participate in idea generation and team brainstorming sessions.
• Design static and motion graphics creatives.
• Ensure consistency of brand identity across all marketing materials.

• Stay current on design trends and bring fresh ideas to marketing strategies, ensuring Codefinity stands out in a competitive market.

   

What do we offer:

• A hybrid work format in Kyiv that combines office days and remote work from home in a flexible way to ensure an optimal balance.
• Work within an ambitious team on a socially impactful education product.
• 20 working days of paid vacation per year, plus public holidays.
• An office with a reliable shelter, generators, satellite internet, and other amenities.
• Access to our corporate knowledge base and professional communities.
• Compensation for English language learning, external training, and courses.
• Medical insurance and full sick leave compensation.
• Company doctor and massage in the office.
• Sports activities: running, yoga, boxing, and more.

We are looking for a designer who loves to go beyond basic references and build genuine visual concepts. If you can easily grasp a product's value, tailor ideas for various audiences, and use AI tools to boost your daily workflow — you should definitely join us!

We are looking for a Python Developer (microservices) to join the Dataforest team. If you are looking for a friendly team, a healthy working environment, and a flexible schedule ‒ you have found the right place to send your CV.

  You'll be a great fit if you have:

• 2+ years of experience with Python;
• Experience with SQL and query optimisation;
• Experience with integration of 3rd party services;
• Strong understanding of client-server model, REST API approach, authorization/authentication principles;
• Strong understanding of asynchronous/multithread/multiprocess programming;

• Upper- Intermediate level of English.

   

    Would be a plus:

• Experience with Redis and Lua scripts;
• Experience with AWS services (Lambda, Step Functions, API Gateway, SQS, Fargate);
• Experience with Django REST API;
• Experience with payment systems integrations (Stripe, Shopify, Recurly, PayPal, Braintree, etc.);

• Experience with Celery and async task management.

   

  What you'll do:

• Developing server applications (APIs). Within these applications, developers need to describe core logic and integrations with third-party services.
• Writing scripts similar to DAGs in Airflow or AWS Lambdas. These scripts should process information using Pandas or implement some simple business logic.
• Developing applications with a distributed architecture (microservices).

• Developing client applications for data retrieval. These data will later be processed by developers from the DS and DE departments.

   

  We ensure your growth with:

• Competitive salary fixed in USD
• Flexible working schedule and fully remote work format
• Paid vacation days and sick leave days 
• Personal and professional development opportunities
• Participation in building innovative projects from scratch using modern technologies
• Team-building activities and corporate events
• English classes and educational events.

Are you a Data Scientist with a love of LLMs, generative AI?

We are looking for a passionate Data Scientist to implement AI solutions aimed at achieving business goals.

This role offers the opportunity to work on cutting-edge AI adoption projects that helps to improve current business processes.

You'll be a great fit if you have:
• Strong Python Experience (1 year +);
• Experience with LLM , Diffusion models (1 year +);
• Knowledge of Prompt engineering;
• Experience with Gen AI-related technologies such as LangChain and RAG;
• Experience with Neural Networks (Optional) ;
• Experience with NLP , Predictive analytics and Machine learning;
• Experience with Pandas;
• Experience with SQL, including experience with large datasets;
• Strong experience in statistics;

What you'll do:
• Develop AI agents that utilize LLM, RAG and langchain approach;
• Implement LLM and Diffusion models to boost business productivity;
• Utilize LLM (LLM Vision) to improve object detection, text classification and extraction;
• Create forecasting, recommendation, and classification models;
• Transform business challenges to AI applications;

We ensure your growth with:

• Competitive salary fixed in USD

• Flexible working schedule and fully remote work format

• Paid vacation days and sick leave days 

• Personal and professional development opportunities

• Participation in building innovative projects from scratch using modern technologies

• Team-building activities and corporate events

• English classes and educational events.

Are you a Data Scientist with a love of LLMs, generative AI?

We are looking for a passionate Data Scientist to implement AI solutions aimed at achieving business goals.

This role offers the opportunity to work on cutting-edge AI adoption projects that helps to improve current business processes.
 

     You'll be a great fit if you have:

•  Strong Python Experience (2 year +);
• Experience with LLM , Diffusion models;
• Knowledge of Prompt engineering;
• Experience with Gen AI-related technologies such as LangChain and RAG;
• Experience with Neural Networks (Optional) ;
• Experience with NLP , Predictive analytics and Machine learning;
• Experience with Pandas;
• Experience with SQL, including experience with large datasets;

• Strong experience in statistics;

  What you'll do:

• Develop AI agents that utilize LLM, RAG and langchain approach;
• Implement LLM and Diffusion models to boost business productivity;
• Utilize LLM (LLM Vision) to improve object detection, text classification and extraction;
• Create forecasting, recommendation, and classification models;
• Transform business challenges to AI applications;

     We ensure your growth with:

• Competitive salary fixed in USD
• Flexible working schedule and fully remote work format
• Paid vacation days and sick leave days 
• Personal and professional development opportunities
• Participation in building innovative projects from scratch using modern technologies
• Team-building activities and corporate events
• English classes and educational events.

We are looking for a visionary and hands-on Senior Backend Developer / Tech Lead to drive the technical evolution of our high-performance microservices ecosystem at Dataforest. If you are passionate about building scalable, high-load systems, defining architectural patterns, and guiding a talented engineering team in a healthy, flexible working environment — we want you on board!

    Technical Requirements:

• 4+ years of commercial experience in backend development using Python;
• Proven track record of designing and scaling high-load (Highload) applications and distributed systems;
• Deep expertise in FastAPI (advanced async patterns, dependency injection, architecture optimization, Pydantic v2);
• Extensive hands-on experience with GraphQL in production (advanced schema design, federation/subgraphs, N+1 problem resolution, resolver optimization);
• Strong mastery of asynchronous programming in Python (asyncio, advanced concurrency models);
• Production experience with AWS infrastructure;
• Advanced knowledge of SQL  databases, mastering query optimization, indexing strategies, and database sharding/replication (e.g., PostgreSQL + SQLAlchemy/Tortoise);
• Deep understanding of microservices patterns (Event-Driven Architecture, CQRS, Saga pattern, API Gateways, Service Mesh).
   

     Optional skills (as a plus):

• Experience with specialized GraphQL tools like Strawberry, Ariadne, or Apollo Router/Federation;
• Advanced usage of Redis (caching strategies, pub/sub);
• Experience with message brokers and task queues (Kafka, RabbitMQ, Celery) under heavy loads.
• Experience with third party integrations (payments, iGaming platforms, CRM and similar).
   

    Key Responsibilities:

• Architecture & Leadership: Design, build, and maintain scalable backend architectures using FastAPI and GraphQL; establish best practices, code standards, and technical roadmaps;
• High-Load Optimization: Solve complex scalability challenges, optimize system performance, eliminate bottlenecks, and ensure low-latency data delivery;
• Microservices & Infrastructure: Own the integration and evolution of a highly distributed microservices mesh built on AWS;
• Mentorship & Code Quality: Lead technical discussions, conduct rigorous code reviews, and mentor Middle/Junior developers, fostering a culture of engineering excellence;

• Cross-functional Collaboration: Act as a key technical point of contact, collaborating with Data Science, Data Engineering, and product stakeholders to design robust data-retrieval and processing APIs.
   

  We offer:

• Great networking opportunities with international clients, challenging tasks;
• Building interesting projects from scratch using new technologies;
• Personal and professional development opportunities;
• Competitive salary fixed in USD;
• Paid vacation and sick leaves;
• Flexible work schedule;
• Friendly working environment with minimal hierarchy;
• Team building activities, corporate events.

Dataforest is a hard-working and tight-knit team with first-rate experience in full-cycle developing data-driven solutions.

We are looking for a IT Project Manager to join our highly talented and motivated team.

You'll be a great fit if you have:

• 2+ years of experience as a IT Project manager ;
• Strong knowledge of project planning;
• Experience with managing web develop projects;
• Project documentation knowledge and understanding;
• Knowledge of the methodology: Scrum, Kanban, Waterfall;
• Experience with task tracking systems;
• Experience in outsoursing company.

What you'll do:

• Plan and document project objectives, tasks, timelines and work assignments;
• Define and track project success metrics;
• Setting tasks to performers (programmers, designers, other);
• Full interaction with the development team;
• Business analysis and making technical requirements (optional).

We ensure your growth with:

• Competitive salary fixed in USD
• Flexible working schedule and fully remote work format
• Paid vacation days and sick leave days 
• Personal and professional development opportunities
• Participation in building innovative projects from scratch using modern technologies
• Team-building activities and corporate events
• English classes and educational events.

Join a Company That Invests in You

Seeking Alpha is the world's leading community of engaged investors. We’re the go-to destination for investors looking for actionable stock market opinions, real-time market analysis, and unique financial insights. At the same time, we’re also dedicated to creating a workplace where our team thrives. We’re passionate about fostering a flexible, balanced environment with remote work options and an array of perks that make a real difference.

What We're Looking For

Do you look at websites and think about how they might be personalized? Do you use websites and apps and think about how their features have been designed to be best for a lot of different users? Do you read articles with statistics and think about how they may be misinterpreting the data to get their results? If these things describe you, and if you’re great at SQL and have experience analyzing website data, you’re someone we want to talk to.

We’re looking for a Senior Data Analyst with experience analyzing website data. Our data analyst team analyzes everything on our website, not only for their immediate use but also for how they connect to high-level company KPIs. Our Analysts analyze raw data, not only pre-aggregated data, to extract just the right information and diagnose what is happening on our site.

The role requires understanding web development and how data is gathered, analysis of site usage and a/b tests, data visualization, and how different kinds of data can be presented most clearly, and business KPIs and how they are measured.

But more than that, we’re looking for experienced analysts who can bring us new ideas about how to analyze and extract insights from website data. Our ideal candidates have measured KPIs that we haven’t measured or used new ways to explain user retention, or analyzed features of users' data that we haven’t analyzed.

The best thing about our work is that we’re part of an incredibly data-driven company. Everyone from the CEO down uses data every day. The data teams are involved in every single thing the company does.

What You'll Do

• Analyzing the behavior of users on our site and apps:

-Build and maintain dashboards that visualize the usage of single or multiple features and how that usage drives company KPIs.

-Answer questions about site usage or user behavior based on deeper analyses.

• Analyze and track high-level KPIs such as conversion, retention, churn, recurring revenue, engagement, cross-device usage, e-mail and notification usage, and more.
• Communicate with business stakeholders on analysis results, how they relate to business, and what business suggestions result from the analysis.
• Run the whole data flow for site and app features, from defining KPIs, specifying data collection for development team implementation, and building and maintaining iterative versions of dashboards with both low-level and high-level views of collected data.
• Split tests of product features:

-Design a test with clear success criteria

-Monitor test integrity

-Analyze results and give recommendations

-Use segmentation and clear cohort analysis to validate significant conclusions

-Conduct exploratory analysis to identify trends and opportunities

Requirements

• A minimum of 5 years in a B2C website-related Data Analyst position
• Strong SQL skills with experience writing complex and efficient analytical queries
• Demonstrated experience with working in English directly with business stakeholders, understanding their needs, and explaining results
• Understanding of website development and operations and how they connect to data gathered.
• Experience with data visualization tools (Looker/Tableau/PowerBI, etc.)
• Experience with report writing and technical requirements analysis, business process modeling/mapping, methodology development, and data modeling

We are currently seeking a qualified and experienced Technical support (night) engineer to join our team.

Preferred skills:

 - Working experience in gambling support/tech support teams;
 - Working experience with RMG projects.

Must have skills:

 - Strong user of Jira Software/Jira service management/Any desk/ Google workspace, etc.
 - English level: Upper-Intermediate;
 - Strong verbal and corporate communication skills;
 - Understanding of the software lifecycle;
 - Ability to learn quickly and work as a part of a team;
 - A challenging and inquiring mind;
 - Attention to detail and tenacity;
 - Quick logical thinking;
 - Sociability, communicability;

Responsibilities:

 - Monitoring of high-priority services,
 - Testing: performance and the new functionality used;
 - Diagnostics and solution of user problems when working with the software used;
 - Prioritizing user requests;
 - Providing individual solutions for customers based on their business needs.

 - Working hours from 21:00 to 9:00 (2/2)

We are currently seeking a qualified and experienced Technical support engineer to join our team.

Preferred skills:

— Working experience in gambling support/tech support teams;
— Working experience with RMG projects.

Must have skills:

— Strong user of Jira Software/Jira service management/Any desk/ Google workspace, etc.
— Upper-Intermediate level of spoken and written English.
— Strong verbal and corporate communication skills;
— Understanding of the software lifecycle;
— Ability to learn quickly and work as a part of a team;
— A challenging and inquiring mind;
— Attention to detail and tenacity;
— Quick logical thinking;
— Sociability, communicability;

Responsibilities:

— Monitoring of high-priority services,
— Testing: performance and the new functionality used;
— Diagnostics and solution of user problems when working with the software used;
— Prioritizing user requests;
— Providing individual solutions for customers based on their business needs.

— Working hours from 9:00 to 21:00 (2/2)

Tribuna.com is a leading digital sports media company with projects across European and global markets, reaching over 10 million users.

From an SEO point of view, Tribuna.com is a large-scale product with millions of indexed pages. Our SEO strategy is built around expertise, usefulness, and depth. We aim to deliver high-quality, authoritative answers to a wide range of sports and betting queries. If you want to work on a complex, high-impact product rather than smaller standalone projects, you’ll fit right in.

What you’ll do

• Build and cluster semantic cores for multiple verticals.
• Lead on-page and off-page optimization to drive measurable growth.
• Maintain clear analytics and reporting for cross-functional teams.
• Test new ideas, develop hypotheses, and validate them quickly.
• Collaborate closely with product managers, developers, and editors.
• Create technical requirements for developers and content teams.

What we’re looking for

• Strong command of Arabic and English.
• Proven SEO experience in competitive niches (iGaming experience is a strong plus, but not required).
• Understanding of user behavior signals and search engine quality filters.
• Strategic thinking, strong organization skills, and attention to detail.

Nice to have

Experience with tools such as Ahrefs, Serpstat, Netpeak Spider, Screaming Frog, SEO PowerSuite, KeyCollector, or KeyAssort.

What we offer

• Competitive salary based on your experience and impact.
• Work within a strong team on a large-scale global project.
• Real influence on technical and product decisions.
• A chance to deepen your SEO expertise and apply it at scale.
• 24 vacation days and a flexible approach to sick leave.
• A supportive team and the option to work fully remotely.