Jobs at Djinni

Location: LDN/WAW/HNK/SNG/TKY
Type: Freelance / Contract (B2B)
Compensation: Negotiated individually
Ownership: PnL-linked / ownership-based role

Context

A high-performance trading infrastructure is developing for low-latency, multi-asset trading.
 

Role

Work on core trading systems where:

• correctness is critical
• latency is a first-order constraint
• predictability matters more than feature velocity

This is a PnL ownership role — responsibility and compensation are aligned with outcomes.

Scope of work

• Low-latency trading components:
  • market data ingestion
  • order execution
  • internal messaging
• Performance-critical systems implemented in Rust
• End-to-end data path optimisation (from socket to decision)
• Design and implementation of:
  • lock-free / wait-free data structures
  • deterministic concurrency models
• Profiling, benchmarking, and bottleneck elimination
• Systems work close to the metal, where abstractions are explicitly questioned

Requirements (Must-have)

• Prior work on HFT, market making, or exchange infrastructure
• Excellent Rust:
  • ownership model
  • lifetimes
  • memory semantics
• Deep understanding of:
  • data structures
  • concurrency and memory ordering
  • operating systems
  • networking internals
• Practical experience with:
  • Linux performance tuning
  • multithreaded systems under sustained load
• Ability to reason about system behaviour under stress and failure conditions

Nice to have

• Kernel-bypass networking (DPDK, io_uring, AF_XDP, etc.)
• Experience with low-latency messaging
• FPGA / hardware acceleration exposure

Notes

• Contract / B2B only
• No visa sponsorship
• Position may remain open without immediate hiring

We are eclipt.ai - more than just a mobile & web development agency. Our main focus is mobile and web applications development and support for various business sectors for over six years. Our portfolio includes a wide variety of software solutions, from small crypto signals apks to projects with IoT and Generative AI integration.
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We are looking for a skilled UI/UX Designer with strong experience in mobile app design, a solid product mindset, and expert knowledge of modern design systems. The ideal candidate is proficient in Figma, understands both Material Design and Apple HIG, communicates clearly, works proactively, and delivers clean, developer-friendly interfaces. They maintain a well-structured portfolio of completed app projects, are fluent in Ukrainian, and are comfortable working remotely on a part-time basis.
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Technical Skills of Our Ideal Candidate

3+ years of experience in UI/UX design for mobile applications

Portfolio with at least 5 fully designed applications

Strong understanding of Material Design and Apple Human Interface Guidelines (HIG)

Ability to create developer-friendly designs based on component systems and reusable elements

Proficiency in Figma
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Social Qualities of Our Ideal Candidate

Positive, proactive, and communicative

Strong interest in user experience and product management

Well-organized and able to quickly absorb new information

Disciplined and attentive to detail
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Job Preferences

Fluent in Ukrainian

Part-time & fully remote

Portfolio with 5+ designed apps (UI/UX case studies included)
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What we offer:

Competitive level of salary
Remote-first way of working
Flexible working schedule
Mentorship program for all employees
Regular Performance reviews
Tailor made development plans for every employee

About Strim Duo:

Strim Duo is a creative and high-tech game and digital product studio headquartered in Limassol, Cyprus. The company provides a wide range of services, including social game development, product engineering, UX/UI design, custom software solutions, mobile applications, and post-launch product support.

Strim Duo helps partners create engaging and highly effective game content: from social and arcade games to MMORPGs and children’s apps, integrating advanced monetization mechanics and social network features (strim-duo.com)

Our Ideal Candidate

• 3+ years of experience in UX, behavioral, ethnographic, or quantitative research.
• Experience in gaming, iGaming, or entertainment industries.
• Strong skills in both qualitative and quantitative methods.
• Ability to conduct market and competitor analysis.
• Experience with research tools (Maze, Hotjar, UserTesting, PlaytestCloud, etc.).
• Strong understanding of player psychology, engagement loops, and UX principles.
• Knowledge of cross-cultural behaviors and market trends in LATAM, EU, and Asia.
• Ability to translate insights into actionable business or product decisions.
• Comfortable working independently in a fast-paced environment.
• Curious, analytical mindset with excellent collaboration skills.

Responsibilities:

• Turn business challenges into actionable research plans and roadmaps.
• Lead research projects using the right mix of methods (interviews, surveys, A/B tests, behavioral data, market/competitive analysis).
• Translate research findings into clear recommendations for Product, Marketing, and NPD teams.
• Conduct market and competitor analysis to identify opportunities and risks in the iGaming sector.
• Plan and run user testing sessions (playtests, usability tests, concept and prototype evaluations).
• Combine behavioral insights with quantitative data to uncover user motivations.
• Use analytics tools (Power BI, Google Analytics, etc.) to connect qualitative and quantitative insights.
• Produce strategic insights that guide publishing, positioning, regional decisions, and GTM strategy.

We’re searching for a Web3 Marketing Manager to join a Web3 company. This is a long-term opportunity.

Responsibilities:

• Manage social networks of the company
• Manage the project’s Twitter account
• Marketing activities (working with existing marketing partners and building strategy for company success)

• Track success

   

Requirements:

• Experience 1+ year in same/similar position
• Experience with online sales is a big plus
• Deep knowledge of crypto
• Excellent communication skills and the ability to work collaboratively in a team

• English proficiency at least B2 level

   

Perks & Benefits:

• Competitive salary and benefits package
• Opportunity to work in a dynamic, innovative, and growing industry
• Remote work flexibility
• A collaborative and inclusive work environment
• Professional growth opportunities in a rapidly evolving sector
• Paid vacation and sick leaves

Betlace is a Ukraine-based outsourcing company. Our primary focus is on WordPress and UI/UX design.

Currently, we're seeking a UI/UX designer to work with us on a part-time/project basis. Please share with us your expected hourly rate and availability.

Need to know:
Figma
Photoshop
Illustrator

Nice to know:

Jira, Slack, Confluence

English at least B1 (available to attend calls with a client)

Additional requirements:

Ability to work with minimum control;

Self-learner;

I'll share more information during the interview.

Type of work: Remote 
 

Techchain Solutions is a boutique AI & Web3 engineering studio working with founders in complex and high-risk domains (crypto, fintech, automation, marketplaces).

We’re looking for an SDR who also owns an outbound strategy.

Your mission:
👉 build and convert a predictable outbound pipeline into qualified calls with founders who can close $30k–$250k deals.

What You Will Own

• Defining and refining ICP together with the CEO
• Designing outbound funnels (LinkedIn, Email, Partnerships)
• Writing and improving outreach & qualification scripts
• Running discovery and qualification calls with founders & CTOs
• Manual LinkedIn prospecting (quality-first)
• Working with a Lead Generation Specialist who handles scraping & Upwork automation
• Deciding which leads are worth pursuing and which are not
• Maintaining CRM and pipeline clarity
• Continuously improving conversion from reply → call → opportunity

Ideal Background

• 2–3 years experience as SDR / BDR / Outbound Strategist in B2B
• Experience with agencies, dev studios
• Strong understanding of qualification (budget, authority, timing)
• Comfortable leading calls with founders
• Strategic mindset: you improve systems, not just execute them
• English B2+ (spoken English required for calls)

Compensation & Terms

• Base: $1,000 / month
• Bonuses: up to $1000/month (qualified calls + revenue impact)
• Growth: commission structure discussed after 2–3 months based on results

🕒 Commitment: 4-6 months minimum
🎯 Goal: revenue conversations, not vanity metrics

The project is for one of the world's famous science and technology companies in pharmaceutical industry, supporting initiatives in AWS, AI and data engineering, with plans to launch over 20 additional initiatives in the future. Modernizing the data infrastructure through the transition to Snowflake as a priority, as it will enhance capabilities for implementing advanced AI solutions and unlock numerous opportunities for innovation and growth.

We are seeking a highly skilled Snowflake Data Engineer to design, build, and optimize scalable data pipelines and cloud-based solutions across AWS, Azure, and GCP. The ideal candidate will have strong expertise in Snowflake, ETL Tools like DBT, Python, visualization tools like Tableau and modern CI/CD practices, with a deep understanding of data governance, security, and role-based access control (RBAC). Knowledge of data modeling methodologies (OLTP, OLAP, Data Vault 2.0), data quality frameworks, Stream lit application development and SAP integration and infrastructure-as-code with Terraform is essential. Experience working with different file formats such as JSON, Parquet, CSV, and XML is highly valued.

• Responsibilities:

  • In-depth knowledge of Snowflake's data warehousing capabilities.
  • Understanding of Snowflake's virtual warehouse architecture and how to optimize performance
  and cost.
  • Proficiency in using Snowflake's data sharing and integration features for seamless collaboration.
  • Develop and optimize complex SQL scripts, stored procedures, and data transformations.
  • Work closely with data analysts, architects, and business teams to understand requirements and
  deliver reliable data solutions.
  • Implement and maintain data models, dimensional modeling for data warehousing, data marts,
  and star/snowflake schemas to support reporting and analytics.
  • Integrate data from various sources including APIs, flat files, relational databases, and cloud
  services.
  • Ensure data quality, data governance, and compliance standards are met.
  • Monitor and troubleshoot performance issues, errors, and pipeline failures in Snowflake and
  associated tools.
  • Participate in code reviews, testing, and deployment of data solutions in development and production environments.

• Mandatory Skills Description:

  • 5+ years of experience
  • Strong proficiency in Snowflake (Snowpipe, RBAC, performance tuning).
  • Ability to write complex SQL queries, stored procedures, and user-defined functions.
  • Skills in optimizing SQL queries for performance and efficiency.
  • Experience with ETL/ELT tools and techniques, including Snowpipe, AWS Glue, openflow, fivetran
  or similar tools for real-time and periodic data processing.
  • Proficiency in transforming data within Snowflake using SQL, with Python being a plus.
  • Strong understanding of data security, compliance and governance.
  • Experience with DBT for database object modeling and provisioning.
  • Experience in version control tools, particularly Azure DevOps.
  • Good documentation and coaching practice.

We’re looking for a Project Manager who’s comfortable working independently and coordinating a team. The role is fully remote and suited for someone who values order, consistency, clear communication, and results.

What You’ll Do

• Understand client needs and turn them into clear, actionable tasks for the team.
• Collaborate on creating marketing and web assets — banners, presentations, websites, videos, and more.
• Coordinate the work of designers and developers: set priorities, track deadlines, and ensure high-quality execution.
• Take part in daily stand-ups to discuss tasks, progress, and challenges.
• Align with Inshi’s values and help grow a strong team culture.

What We’re Looking For

• Experience managing projects (e.g., project management, creative project manager, campaign manager).
• Basic knowledge of Figma.
• Excellent organizational skills and attention to detail.
• A proactive, independent, and responsible mindset.
• Communication skills and a client-first attitude.
• Fluency in English, both written and spoken.

• Project Description:

  The project provides a set of APIs, image and text recognition libraries, and other tools for automation testing of ECUs, especially automotive headunit and digital cluster. It provides a black box environment, which allows testing of automotive headunit without making any change to the headunit's software. In other words, no hook is needed.
  Team is divided in 2 locations: Ukraine and Detroit

• Responsibilities:

  Design separate components, modules, classes, database tables etc.
  • Code, debug, document, and maintain portions of software.
  • Perform unit and integration testing.
  • Participate in peer code and design reviews.
  • Participate in estimation and planning sessions.
  • Contribute to development of technical project documentation and user documentation.
  • Provide assistance to test engineers and support personnel in solving technical issues of software installation and its operation.
  • Participate in conference calls and face-to-face meetings with the Customer and Customer partners.
  • Comply with the best engineering practices, the technical standards and the quality criteria set forth on the project.
  • Report status and progress according to the project rules.
  • Spot current deficiencies in the development process, adopted procedures and engineering practices, environment configurations, etc., and suggest improvements.
  • Escalate technical issues to Tech Lead and Product Owner.
  • Improve your qualification within the areas of expertise at various training courses, seminars and/or other educational organizations

• Mandatory Skills Description:

  Python
  C++
  Computer Vision/image processing

• Nice-to-Have Skills Description:

  Good communication skills
  Automotive
  Agile

• Languages:
  • English: B2 Upper Intermediate

We are looking for a motivated Trainee Python Developer to join our team and develop innovative projects using Python, Django, and different databases.

Ideally, you need to have a passion for programming, great soft skills, and good English.
 

It is a full-time position in Lviv.
 

Requirements:

- Solid understanding of Django, REST API

- Strong proficiency with Python

- Experience with databases: PostgreSQL

- Knowledge of OOP, microservice architecture, cloud providers

- English level: Intermediate+ (written, spoken)

- Desire to work and study new technologies, approaches, and best practices
 

Responsibilities:

- Write clean and maintainable code using Python

- Development of the server part of the application

- Implement back-end functionality according to requirements

- Staying current on new technologies and best practices

- Communicate with the customer and team members
 

Interview stages:

Initial interview ➜ Technical Interview ➜ Interview with PM ➜ Job offer
 

We offer:

- IT Club membership

- 18 days of vacation + 8 days of paid state holidays

- Health insurance

- Compensation for language trainings

- Compensation for educational courses, training, and certificates

- Compensation for sport activities

- Mentorship program

- Employee recognition program with awards

- Reading club

- Cozy and pet-friendly office

- Weekly sweets & fruits office days

- Corporate bookshelf

- Office relax zone with PS4, VR, table games, table tennis, aero hockey, mini football table, and gymnastic ladder.
 

We are looking for a team player!

Are you interested? We would be glad to receive your CV.

We are seeking a highly motivated and technically proficient QA Automation Engineer to join our dedicated testing team. You will play a crucial role in ensuring the successful and high-quality delivery of software products for our client, a prominent American multinational automaker.
This position offers a challenging and dynamic environment within a multicultural international team, demanding strong problem-solving skills and a proactive approach.

Responsibilities

Design, develop, and execute robust automated test scenarios on a daily basis, utilizing Python as the primary scripting language.

Framework Management: Actively contribute to a new and maintain the existing automation frameworks

Ensure comprehensive test coverage by writing detailed test scenarios

Engage in specialized testing of automotive systems, including validation of in-vehicle components

Work closely with developers, business analysts, and product owners within the Scrum framework, actively participating in sprint planning and daily stand-ups.

Skills

Must have

Prior work with embedded or automotive systems, especially in the context of multi-ECU scenarios.

Proven experience developing, debugging, and maintaining Python code for automated testing.

Thoroughly analyze logs, and quickly resolve issues within automated testing pipelines.

Proficient in using Visual Studio Code (VSCode) with relevant extensions (Python, Cucumber, Copilot).

Experience managing Python virtual environments and dependencies.

Proficient with Git for version control and JFrog Artifactory for artifact management in a collaborative, automated test environment.

Ability to read and follow technical documentation in English.

Strong communication skills for collaboration with developers, testers.

Exposure to automotive communication protocols (e.g., CAN, LIN, Ethernet).

Nice to have

Experience with test automation for automotive multimedia, connectivity, and driver-assistance features.

Hands-on expertise with modern test automation frameworks, especially those supporting Behavior-Driven Development (BDD) and keyword-driven testing.

Skilled in translating requirements and Gherkin scenarios into robust, executable automation logic.

Ability to analyze, optimize, and troubleshoot both hand-written and AI-generated Python test scripts for reliability and maintainability.

Experience integrating automated tests with Hardware-in-the-Loop (HiL) and Software-in-the-Loop (SIL) benches via industry-standard APIs (such as ASAM HIL).

Hands on experience with testing of ADAS features such as Camera, Parking Assist, and Driving Assistance modules.

Experience with requirements gap analysis, traceability, and coverage reporting for ADAS or other safety-critical automotive systems.

What you will do

• Build and iterate on modern web apps using Next.js, React, and TypeScript.
• Own UI quality end to end: performance, accessibility, SEO, reliability, and maintainability.
• Ship quickly without breaking things: use automated checks plus visual testing to catch UI regressions.
• Experiment fast, validate outcomes, then harden into solid production code.
• Collaborate in a senior, low process team: clear specs, tight feedback loops, high standards.
   

Must have

• 5+ years building products in team settings (we will deep dive into what you built and the impact).
• Strong Next.js and React experience, plus TypeScript fluency.
• Strong engineering hygiene: clean architecture, code reviews, pragmatic testing, and performance thinking.
• Proven ability to deliver fast and safely under real world constraints.
• AI native workflow: you actively use AI coding agents for implementation speed, but you can also enforce correctness via tests, types, and review discipline.

• Extreme ownership is part of our culture.

   

  Quality and tooling expectations

• Automated testing mindset (unit, integration, and E2E where it makes sense).
• Visual regression testing workflow.
• Solid CI discipline, ideally with preview environments per branch or PR.
• Nice to have
• Fullstack experience, or strong interest in moving there (Node.js or Python API work, data flows, auth, payments).
• Experience operating apps with meaningful traffic and uptime requirements (observability, incident hygiene, rollbacks).
• Deployment and infra exposure: Vercel, AWS, GCloud, Kubernetes, CI/CD.

• Orchestration experience (workflows, background jobs, event driven systems)

   

  Bonus points

• You have led small teams, mentored developers, or run your own product or company.
• You can balance speed with taste: you know when to prototype and when to engineer.

Our team is looking for a strong Senior .NET Software Engineer who is eager to become a part of a big team and develop complex solutions.

About the project:
Our client is a platform that provides global e-commerce and subscription billing solutions that help companies build long-term customer relationships and grow revenue streams. With its flexible, cloud-based billing and monetization platform, our client integrates seamlessly with client systems, simplifies subscription business models, and delivers an optimized online customer experience.

Responsibilities:

• Translating business logic into code
• Automating business processes
• Designing, building, and maintaining performant, efficient, reusable, and reliable code
• Requirements review, requirements development
• PCI DSS standard (four-eyes principle), QA, code review
• Writing unit and integration tests
• Problem-solving, root cause analysis, and 3rd-level support
• Communicating with internal product owners and stakeholders, as well as external providers
• Sharing new ideas, techniques, and methodologies

Requirements:

• A minimum of 7 years of software development experience
• Strong knowledge and experience in designing and developing web backend solutions using .NET Framework and/or .NET Core
• Strong experience with SQL (Oracle)
• Strong understanding of design and architectural patterns
• Knowledge of general tools in teamwork: JIRA, Git, Jenkins, Microsoft Visual Studio (or Rider)
• Profound experience with unit testing frameworks
• English on Upper-Intermediate level
• Nice to have: Azure and/or AWS knowledge and experience
• Nice to have: knowledge in any of these topics: e-commerce, payments, finance, subscription management,

About the project:

Tech stack: .NET (.NET Framework in transition to .NET Core), Web APIs (SOAP, REST), Oracle SQL, ORM, NUnit & MSpec tests, Moq, Jenkins, Gitlab, Jira, ELK-Stack

• Well-maintained C# .NET Framework platform
• Constant modernization -> transition to .NET Core
• 14.000 tests (unit, integration)
• new datacenters, no cloud
• Any code you touch should be improved for the next person working with it
• processes are built based on the Scrumban approach
• We are gathering a strong .NET team to work on payment logic in our e-commerce solution
• Adding and working on existing payment providers (credit cards, PayPal, direct debit, Google Pay, etc.)
• Connecting with a multitude of web APIs and FTP servers

Why TREAT?

TREAT is a fast-growing gaming startup that created a new model - Play to Impact. Based on gamification, TREAT allows pet lovers to co-own & treat a real dog/cat in need (a real-life "Tamagotchi"). TREAT players have earned over 30,000,000 treats, meals, and toys for shelter animals. Our vision is to impact millions of lives by entertaining millions of users.

About the role:

We are seeking a highly skilled and experienced Unity Developer to contribute to the development of our Unity-based projects. The ideal candidate will have a strong background in game development, with extensive experience in Unity, and a passion for creating engaging gaming experiences.

Responsibilities:

• Hands-on role with significant ownership of features and systems, offering the opportunity to shape the game’s development
• Collaborate with cross-functional team members to develop and ensure design requirements are aligned and project/sprint goals are met.
• Maintain, optimize, and refactor existing code to improve performance and resolve issues
• Participate in design reviews, providing feedback and ideas for new features and improvements
• Participate in code reviews to ensure high-quality, maintainable code
• Implementing new client-side features as well as maintaining and improving existing code.
• Identifying and fixing code errors and game bottlenecks.
• Actively participate in code reviews and ensure adherence to coding standards and best practices.
• Stay up-to-date with the latest trends and technologies in Unity development and recommend improvements and updates as necessary.

Requirements:

• Bachelor's degree in Computer Science or related field.
• Minimum of 5 years of experience in game development with a focus on Unity.
• High proficiency in English – written and spoken
• Worked on at least one game project successfully published on both the App Store and Play Store.
• Strong understanding of software development principles and best practices in C#.
• Ability to collaborate effectively with cross-functional teams.
• Excellent communication and interpersonal skills.
• Strong problem-solving and analytical skills.
• Ability to manage multiple projects simultaneously.
• Proficient with Git for version control and team collaboration.
• Knowledge of REST APIs, Firebase, and Google Cloud Platform services.
• You love pets – Has/had a dog/cat and/or got involved with animal shelters.

Advantages:

• Experience with Jira and Bitbucket for project management, and collaboration.
• Familiar with agile development methodologies (Scrum, Kanban).
• Familiar with different asynchronous programming patterns in Unity.

Are you passionate about safeguarding countries, societies, and businesses from information threats? Look no further! Our rapidly scaling company is passionately committed to this crucial mission, offering you a unique opportunity to collaborate with some of the world’s most influential organizations, including NATO and the EU. As a Ukrainian team, we are determined to deliver substantial and meaningful change.

If you’re ready to join a dynamic team working toward a safer digital world, we invite you to be part of our journey. Shape the future with us and help defend against online threats with purpose and innovation.

Role Overview

We’re looking for a Senior AI Engineer with a solid engineering background and hands-on AI experience. In this role, you will help design and implement innovative AI-powered solutions that are core to our platform’s mission. You’ll work across the stack to build and integrate AI capabilities that are both scalable and practical.

You won’t need to build everything from scratch, but you’ll need the skills to fine-tune, adapt, and creatively apply state-of-the-art models and tools to solve real-world problems. Your responsibilities will range from working on backend services to shaping AI agents and LLM-based pipelines for production use.

Key Responsibilities

• Understand business challenges and generate innovative ideas to address them using AI and machine learning.
• Research, evaluate, and adapt existing deep learning and machine learning models for practical applications.
• Develop and maintain services for data enrichment using LLMs
• Implement AI-powered summarization and mapping tools
• Design and build AI agents for dynamic use cases
• Monitor industry advancements and identify opportunities to leverage the latest tools and techniques.

Requirements

Engineering Skills:

• Strong Python skills
• Experience with FastAPI, Docker, and asynchronous programming
• Good knowledge of DBs, including PostgreSQL and Elasticsearch

AI Skills:

• At least 3+ years of hands-on experience in AI/ML (more is a plus)
• Experience working with LLMs, RAG, and AI agents in production
• Strong understanding of transformer architectures
• Practical experience with prompt engineering
• Knowledge of LLM infrastructure and deployment
• Experience with deep learning frameworks such as PyTorch or TensorFlow

We Offer

• Opportunity to contribute to a mission-driven startup and support prestigious clients, including governments worldwide, enterprise clients, and leading NGOs in addressing information threats and tackling security challenges.
• Autonomy and freedom to drive experiments and bring your own ideas to life.
• Flexibility of fully remote work.
• Flexible, unlimited time-off policy.