Jobs at Djinni

Про компанію

• Платформа ШІ-агентів дозволяє компаніям розгортати індивідуальні рішення на основі штучного інтелекту (такі як автоматизація документообігу, операційна аналітика та агенти штучного інтелекту) за лічені дні, а не місяці. 

Вимоги до кандидата:

• Освіта та фундаментальні знання: вища освіта в галузі Computer Science (бакалавр або магістр) з акцентом на алгоритми, структури даних та дискретну математику. Обов'язкове глибоке розуміння основ: асимптотичний аналіз (Big O, Theta, Omega), динамічне програмування, графи (BFS/DFS, найкоротші шляхи), дерева (бінарні, AVL, B-дерева), хеш-таблиці, черги, стеки та купи. Кандидати без формальної CS-освіти не розглядаються.
• Інженерний майндсет: Доведений досвід у розв'язуванні складних проблем з фокусом на ефективність, масштабованість та оптимальність. Ми очікуємо, що ви можете пояснити, чому вибрали певну структуру даних для задачі (наприклад, чому Trie краще за хеш-мапу для автодоповнення) та проаналізувати trade-offs (час vs. простір).

• Практичний досвід: Мінімум 2-3 роки в розробці, де ви застосовували CS-концепції на практиці (наприклад, оптимізація алгоритмів у production-коді). Знання мов програмування (JS, C++, Java, Python) на рівні, достатньому для competitive programming.

   

Бонуси (значно підвищують шанси):

• Призові місця на олімпіадах з програмування (IOI, ICPC, Google Code Jam, Facebook Hacker Cup) або регіональних змаганнях.
• Високий рейтинг на платформах: LeetCode (Knight+ або 2000+ rating), HackerRank (Gold+), Codeforces (Expert+ або 1900+ rating). Надсилайте посилання на профіль у резюме – ми перевіримо.
• Участь у хакатонах з фокусом на алгоритмічні задачі (наприклад, перемоги на HackMIT, AngelHack).

Важливо: Ми шукаємо тільки тих, хто має солідний теоретичний бекграунд і може довести його на технічному інтерв'ю (live coding з задачами на алгоритми). Якщо ви самоучка без формальної освіти чи досягнень у competitive programming, ця вакансія не для вас – ми не розглядаємо резюме без підтвердження CS-фундаменту. Подання: надішліть CV з прикладами розв'язаних задач (посилання на GitHub або LeetCode).

Над чим ви працюватимете

• Впровадження та налаштування розгортання платформи для корпоративних клієнтів на базі стеку JavaScript/TypeScript (Express, Vue.js), баз даних PostgreSQL. 
• Створення інтеграцій між платформою та клієнтськими системами
• Співпраця з внутрішніми командами для розуміння вимог клієнтів та їх перетворення на технічні рішення
• Внесок у розробку інструментів впровадження, документації та повторюваних процесів розгортання
• Виправлення неполадок та вирішення проблем під час та після розгортання
• Періодична участь у дзвінках клієнтам для збору вимог або надання технічних рекомендацій

-----------

About the Company

• Enterprise AI development platform that emerged from a hidden activity in 2025 thanks to $50+ million in funding.
• Main purpose: The platform allows companies to deploy customized AI solutions (such as document automation, operational analytics, and AI agents) in days, not months.
• Enterprise segment and deep integrations with enterprise business processes.
• Key features: The platform is model-agnostic, meaning users can use their own AI models, and it guarantees data privacy without training third-party models on customer data.

Candidate requirements:

• Education and fundamental knowledge: Higher education in Computer Science (Bachelor's or Master's) with a focus on algorithms, data structures, and discrete mathematics. A deep understanding of the fundamentals is required: asymptotic analysis (Big O, Theta, Omega), dynamic programming, graphs (BFS/DFS, shortest paths), trees (binary, AVL, B-trees), hash tables, queues, stacks and heaps. Candidates without a formal CS education will not be considered.
• Engineering mindset: Proven experience in solving complex problems with a focus on efficiency, scalability and optimality. We expect you to be able to explain why you chose a particular data structure for a problem (e.g. why a Trie is better than a hash map for autocompletion) and analyze trade-offs (time vs. space).

• Practical experience: Minimum 2-3 years in development, where you applied CS concepts in practice (e.g. optimization of algorithms in production code). Knowledge of programming languages ​​(JS, C++, Java, Python) at a level sufficient for competitive programming.

   

Bonuses (significantly increase your chances):

• Prize-winning places at programming olympiads (IOI, ICPC, Google Code Jam, Facebook Hacker Cup) or regional competitions.
• High rating on platforms: LeetCode (Knight+ or 2000+ rating), HackerRank (Gold+), Codeforces (Expert+ or 1900+ rating). Send a link to your profile in your resume - we will check it.
• Participation in hackathons with a focus on algorithmic problems (for example, victories at HackMIT, AngelHack).
• Important: We are only looking for those who have a solid theoretical background and can prove it at a technical interview (live coding with algorithmic problems). If you are a self-taught person without formal education or achievements in competitive programming, this vacancy is not for you - we do not consider resumes without confirmation of CS-foundation. Submission: send a CV with examples of solved problems (link to GitHub or LeetCode).

What you will be working on

• Implement and configure the deployment of a platform for enterprise customers based on a JavaScript/TypeScript stack (Express, Vue.js), PostgreSQL databases.
• Create integrations between the platform and customer systems
• Collaborate with internal teams to understand customer requirements and translate them into technical solutions
• Contribute to the development of implementation tools, documentation, and repeatable deployment processes
• Troubleshoot and resolve issues during and after deployment
• Periodic participation in customer calls to collect requirements or provide technical recommendations

Meet the YozmaTech

YozmaTech isn’t just another tech company – we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster.
We build dedicated development teams across 10+ countries, creating strong, long-term partnerships based on trust, transparency, and real impact.
Here, every idea counts. We value people who are proactive, open-minded, and ready to grow. If you’re passionate about building meaningful products and want to join a team that feels like family – you’ll feel right at home with us.

Our client is looking for a Senior Full-Stack Developer (Go + React) to join a fast-growing product company building a comprehensive platform for small businesses worldwide.

The platform serves millions of entrepreneurs across 180 countries and helps business owners manage key aspects of their operations, including branding, compliance, legal, and financial services. The company has evolved from a single-product startup into a multi-product ecosystem with dozens of customer-facing solutions used by hundreds of thousands of paying customers.

This is a unique opportunity to work on large-scale, customer-facing products, influence technical direction, and take full ownership of features from design through production. The team values engineers who think beyond implementation, actively contribute to architecture decisions, and drive business impact through technology.

The environment is fast-paced, product-oriented, and highly collaborative, with a strong culture of ownership, autonomy, and continuous improvement.

Key Requirements:
🔹 7+ years of commercial software development experience;
🔹 Strong hands-on experience with Go (Golang);
🔹 Strong hands-on experience with React;
🔹 Proven experience designing and building scalable, customer-facing products;
🔹 Experience owning features end-to-end, from planning and implementation to monitoring in production;
🔹 Product mindset with a focus on user experience and business impact;
🔹 Ability to work independently and proactively in a fast-moving environment;
🔹 Experience working in startup or high-growth product companies;
🔹 Strong understanding of modern development practices and software engineering principles;
🔹 Experience working with AI-assisted development tools and ability to review, validate, and own AI-generated code;
🔹 English – Upper-Intermediate or higher.

Will be plus:
🔹 Experience working in successful startup environments;
🔹 Experience building products used by large numbers of customers;
🔹 Exposure to Ruby on Rails and/or Ember.js;
🔹 Computer Science degree or equivalent technical education;
🔹 Experience contributing to architectural decisions across multiple services or domains;
🔹 Long-term product ownership experience, including scaling and evolution of existing systems;

What you will do:
🔹 Design, develop, and maintain scalable full-stack applications using Go and React;
🔹 Take ownership of features throughout the entire lifecycle, from concept to production;
🔹 Participate in system architecture and technical design discussions;
🔹 Build reliable, high-quality customer-facing functionality;
🔹 Collaborate closely with engineers, product managers, and stakeholders;
🔹 Continuously improve code quality, performance, and maintainability;
🔹 Monitor production systems and proactively resolve issues;
🔹 Review, validate, and improve AI-generated code where applicable;
🔹 Contribute to technical decisions and help elevate engineering standards across the team;
🔹 Identify opportunities for improvements and leave systems better than you found them;

Interview stages:
🔹 HR Interview (YozmaTech);
🔹 System Design Interview (up to 90 min);
🔹 Project Deep Dive Interview (1 hour);
🔹 Reference Check;
🔹 Offer;

Overview

Imagine this: you build projects from scratch, from IoT devices to smart solutions for energy and security. We’re looking for an Embedded Engineer. Lviv, relocation support provided! No legacy, with a team that truly helps you level up. If you’re interested in growing in low-level Embedded development.

Main Responsibilities

— Participate in the full embedded software life cycle: design, implementation, code reviews, documentation, testing, and validation

— Analysis and systematic problem-solving for SW-reported issues

— Cooperate with electrical engineers

Mandatory Requirements

— 1-3 years of professional experience

—C/С++ Programming Language on embedded systems

— Experience with STM32/SiLabs/Rigado/Microchip microcontrollers

Interfaces and protocols (UART, I2C, SPI, ModBus, CAN, USB, Ethernet,

etc.)

— Embedded Real-time operating systems

— Experience with Linux

— Experience in image, video, and signal processing

— Version control systems, task tracking systems

— Understanding of electrical schematics

Would be a plus

— Experience in networking: TCP, UDP, MQTT, TLS

— Understanding of cloud connectivity/IoT concepts and applications

— Automated and regression testing

We offer

— Competitive salary with regular reviews

— Modern projects with cutting-edge technologies

— Excellent space for your personal and professional development

— Low level of bureaucracy with a lack of multi-level management

— Attractive work environment: The modern and stylish office with ergonomic workstations, creative zones, and innovative spaces

— Paid vacations and sick leaves

— Accountant support

— Educational Events

— Free English classes

— Amazing team buildings

We are building an international iGaming product and have been growing steadily for more than three years together with a strong in-house team.
During this time, we have not only strengthened the product but also built flexible processes that support business scaling.

Now we are actively expanding: strengthening our product expertise, growing the team, and entering the next stage of development.
That is why we are looking for a DevOps Team Lead who will lead our Platform Engineering team.

This role combines technical leadership, team management, and hands-on involvement in platform development.

Responsibilities:
• Team development — around 30% of your time:
• Develop engineers through regular feedback, mentoring, and individual development plans;
• Participate in hiring and building a strong Platform Engineering team;
• Define technical standards and ensure they are followed;
• Manage priorities between product team requests and platform development, helping the team stay focused;
• Define and execute the platform development roadmap;
• Platform development — around 70% of your time:
• Develop golden paths and reusable modules using Terraform and Helm to help teams launch new services quickly and according to common standards;
• Develop and maintain the platform based on AWS and Kubernetes;
• Develop CI/CD as a platform product, including reusable GitLab CI templates, GitOps-based deployments, and standardized delivery processes;
• Improve observability using Prometheus, Grafana, Loki, Alertmanager, distributed tracing, and shared monitoring tools across teams;
• Develop the platform’s networking and security architecture, including VPC, VPN, load balancing, and secrets management;
• Implement and improve SRE practices, including SLOs, error budgets, and an effective on-call process;
• Reduce time to production and the cognitive load on development teams through automation, standardization, and improvements to internal platform services.


Requirements:
• Experience leading a team of DevOps, SRE, or Platform Engineers;
• Hands-on experience with AWS, including EKS, RDS, VPC, IAM, and S3;
• Production experience with Kubernetes, including Helm, Ingress, StatefulSets, and Operators;
• Strong hands-on experience with Terraform, Ansible, and Helm;
• Experience building CI/CD pipelines using GitLab CI or similar tools and a good understanding of GitOps principles;
• Good understanding of networking: TCP/IP, L4/L7 load balancing, VPN, and container networking;
• Strong Linux administration skills and experience troubleshooting performance and networking issues using tools such as strace, perf, and tcpdump;
• Bash and Python skills sufficient to build your own automation tools;
• Experience building engineering processes and technical standards and scaling a Platform Engineering team.


Preferred Qualifications:
• Hands-on experience with GitOps tools such as Argo CD or Flux;
• Experience with OpenTelemetry and distributed tracing;
• Experience with secrets management solutions such as Vault, SOPS, or AWS Secrets Manager;
• Mature SRE practices, including SLOs, error budgets, and on-call processes;
• AWS FinOps experience;
• Experience running stateful services in Kubernetes, such as PostgreSQL, Kafka, Redis, and related Operators.


We offer:
• Competitive compensation that is regularly reviewed based on your professional growth and contribution to the team’s results;
• Fully remote work with flexible working hours — we focus on results rather than hours worked;
• We care about work-life balance and offer paid vacation, sick leave, public holidays, and additional days off;
• An opportunity to work with a strong team and an experienced manager who will support your professional growth and development;
• An environment with growth opportunities even for experienced senior-level professionals.

Culture Wallet — your flexible benefits budget
We give you the freedom to invest in what matters most to you:
• A personal budget for sports, education, health, hobbies, and more — the amount grows together with your level and time with the company;
• A starting bonus after successfully completing the probation period, which you can use to improve your workspace or invest in your development;
• A birthday bonus added to your Wallet;
• Spot bonuses from your manager for strong performance and contribution to the product.

Our values:
• We build a team where everyone is involved in the overall result and understands the value of their work;
• We take responsibility for quality and bring tasks to completion;
• We build a strong product through a strong team, based on openness, direct communication, and mutual respect;
• We adapt quickly to changes while keeping our pace and focus on what matters most;
• We encourage proactivity, curiosity, and continuous development, creating an environment where people support each other and grow together.

If this approach to work and professional growth resonates with you, let’s talk and see how we can be a good match 🤝

24PLAY is a game development company from Ukraine, creating games and playable ads in co-development and co-production with partners worldwide.
 

Since 2019, we’ve been bringing together strong production expertise, creative talent, and a deep understanding of games to turn ideas into engaging player experiences. Today, we collaborate with partners such as Ubisoft, Papaya, Octo Games, and others - developing and launching games and playable experiences for global audiences.

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

We are currently looking for a Junior/Middle Motion Designer to share our core company values:
 

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

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

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

Main responsibilities:

• Create advertising creatives based on gameplay recordings or in-game assets (including capturing gameplay footage in Unity when needed);
• Generate fresh and engaging ideas for creatives.

Our ideal candidate:

• At least 1 year of experience in gamedev as a Motion Designer;
• Understanding of composition, editing principles and techniques, sense of rhythm, and ability to work with color;
• Ability to work with sound and basic knowledge of sound design;
• Understanding of core animation principles;
• Basic understanding of advertising creative structure;
• Proficiency in Adobe software (After Effects, Photoshop, Premiere, Illustrator), but you’re also welcome to use any additional tools you’re comfortable with;
• Ability to work with vector web animation (SVG, TGS formats).

Nice to have:

• Experience working with Unity and understanding of its basic components;
• Experience with 3D graphics / Blender / Ability to set up 3D renders (lighting, materials);
• Experience creating store assets for App Store and Google Play;
• Use of AI tools in daily workflows.
   

Why join our team?

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

We look forward to receiving your application!

24PLAY is a Gamedev company from Ukraine that has been developing and publishing mobile games since 2019.

We are a team of professionals who have launched dozens of popular games and gained over 100 million satisfied players worldwide. Our games include Zombiepunk, Blitzkrieg Assault, Street Dude, and more.

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

We are currently looking for a Game Designer to share our core company values:

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

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

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

Key responsibilities:

• Idea Development: Generate original and engaging game ideas for mobile games of all complexity levels (from hybrid-casual to Casual and Midcore).
• Design: Create gameplay, levels, and mechanics that will inspire players.
• Documentation Creation: Develop detailed game documents, pitches, and presentations describing game and economic systems, game rules, monetization systems, and other important product elements.
• Balancing: Balance the game mechanics, progression systems, and economy.
• Team Interaction: Work collaboratively with developers, artists, and other team members to successfully integrate gameplay and ensure high product quality.
• Analysis and Optimization: Work with analytics systems, identify problems, and propose changes to provide a better gameplay experience.

Our ideal candidate:

• English Language: English level B1 or higher.
• Game Design Experience: Experience working as a Game Designer in mobile games.
• Creativity: Ability to find unconventional and interesting solutions that make our games unique.
• Market Knowledge: Understanding of the mobile games market and popular mechanics, as well as a desire to implement innovative solutions.
• Proficiency in Spreadsheets: Good understanding of mathematics, knowledge of working with Google Spreadsheets, and creating balance sheets.
• Teamwork: Willingness to collaborate with other team members.
• Analytical Skills: Basic understanding of methods for analyzing game metrics data, organizing information, and creating reports.

Will be a plus:

• Knowledge of Figma for effective collaboration and visual documentation.
• Knowledge of the Unity game engine.
• Experience conducting A/B testing to optimize game features and mechanics.
• Ability to work independently with analytical systems (e.g., Amplitude, Firebase, GameAnalytics).
• Experience in game balancing for midcore games.
• Experience in level design for action-adventure or similar games, as well as narrative design.

Why join our team?

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

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

   

We look forward to receiving your application!

About us
GRIT LEADERS is an SEO and link building agency working mostly in iGaming. We serve operators and platforms worldwide: guest posts, PBN links, brand protection, technical SEO, content. We're expanding the sales team and adding an SDR to our team — you'll have processes and people to lean on, plus real room to shape how outbound works here.
 

What you'll do

• Build target lists around our ICP: operators, affiliates, media buying teams, agencies
• Run outbound across LinkedIn, email and Telegram — write, follow up, keep the thread alive
• Qualify leads: is there a real need, who decides, is there budget
• Book meetings for our Account Executives and hand over leads with actual context, not a single line
• Keep every lead and interaction logged in Pipedrive — if it's not in the CRM, it doesn't exist
• Research the market: who just entered a new geo, who changed vendors, whose visibility dropped (Ahrefs, LinkedIn, industry media and chats)
• Attend conferences across Europe: fill your calendar before the event, collect contacts, follow up after
   

What we're looking for

• English B1+ — you'll write in it daily and talk to people face to face at events. We test this in the interview
• 6 months to 2 years in lead generation, outbound or sales — industry background is not critical but iGaming is a plus
• You can dig for information and draw a conclusion from it, not just paste it into a spreadsheet
• Proactive: you show up with hypotheses and questions instead of waiting for step-by-step instructions
• Organised: your data, notes and next steps stay in order without someone chasing you
• Valid international passport and readiness to travel to European conferences regularly (2–4 times a year)
   

Nice to have
 Experience in iGaming or in SEO/link building. CRM experience (Pipedrive, HubSpot). Apollo, Sales Navigator, Ahrefs.
 

What we offer

• Remote, flexible hours with overlap with the team
• Conferences and travel covered by the company
• Onboarding, internal knowledge base, call and email reviews — asking a lot of questions is expected here
• A clear path to Account Executive: your own pipeline, your own deals, commission. This is the default trajectory for the role, not a vague promise
   

Hiring process
 Screening → short practical task →  interview with Head of Business Development

Data Science UA is a service company with deep expertise in AI and Data Science. Our story started in 2016 with the first Data Science UA Conference in Kyiv, and since then, we’ve built one of the largest AI communities in Europe.

About the client

Our client is developing technology to make industrial environments safer and reduce the risk of accidents through proactive monitoring.

The Ukrainian engineering team is building a next-generation industrial safety platform combining Computer Vision, Machine Learning and IoT.

About the role

We are looking for a Middle Systems / Software Engineer to work on the performance-critical core of a real-time Computer Vision platform.

This is not a typical Python Backend role. The main challenge is building and optimising the systems underneath the CV/ML engines — where performance depends on memory, processes, concurrency, data movement, CPU/GPU utilisation and low latency.

You will work on the runtime that executes CV pipelines as a graph of processing stages, with latency measured in milliseconds. You will deal with shared memory, zero-copy data transfer, inter-process communication and process orchestration.

What matters most to us

We are open to engineers coming from C++, Python, Go or similar backgrounds.

The programming language itself is not the main selection criterion. What matters much more is a strong systems engineering mindset and experience understanding what is happening inside a system.

For example, we are particularly interested in engineers who have worked with problems such as:

• reducing unnecessary memory copies;
• optimising CPU/GPU utilisation;
• investigating latency spikes and performance bottlenecks;
• working with processes, threads and concurrency;
• debugging race conditions and difficult low-level issues;
• profiling applications and identifying bottlenecks;
• designing efficient data-processing pipelines;
• working with large amounts of data moving through several processing stages;

• optimising algorithms or runtimes for performance.

   

A candidate does not necessarily need to have worked with exactly the same technologies before.

For example, experience with CUDA, C++, GPU optimisation, real-time processing, robotics, computer vision, video pipelines, scientific computing or other performance-sensitive systems can be highly relevant.

What you’ll work on

• Collaborate with CV/ML engineers to turn model inference code into reliable production pipeline stages.
• Develop and optimise the core Pipeline Engine — an in-process, real-time runtime executing the CV pipeline as a graph of stages.
• Work with zero-copy shared-memory pools for passing frames between processes.
• Develop and optimise low-latency ZeroMQ communication for control messages, metadata and synchronisation.
• Work with pipeline metadata and serialisation boundaries.
• Analyse and improve CPU, memory and latency performance.
• Profile, debug and troubleshoot complex runtime issues.

• Contribute to the architecture and evolution of the real-time processing infrastructure.

   

Requirements

Must-have

• Commercial experience as a Software Engineer / Systems Engineer / C++ Engineer / Python Engineer or similar.
• Strong systems engineering mindset and understanding of:
  • processes and concurrency;
  • memory ownership and data movement;
  • latency vs throughput trade-offs;
  • performance bottlenecks;
  • profiling and debugging;
  • failure modes of complex systems.
• Experience working with performance-sensitive or latency-sensitive systems.
• Experience with at least one of C++, Python, Go or a similar programming language.
• Python is used in the platform, but it does not need to be your primary language. Strong C++ / systems experience is equally relevant.
• Solid Linux fundamentals.

• Solid experience with Docker and containerised environments.

   

Nice-to-have

• CUDA, including IPC handles and stream synchronisation.
• C/C++ or Go.
• OpenCV.
• GStreamer, FFmpeg or RTSP.
• ZeroMQ.
• Shared memory / zero-copy architectures.
• FlatBuffers or other binary serialisation formats.
• Experience building or operating camera/video pipelines.

What we offer

• Competitive compensation.
• Benefits package.
• Strong engineering team.
• Opportunity to work on challenging real-time Computer Vision infrastructure.
• Meaningful industrial safety use case.
• Technical challenges and opportunities for professional growth.

Data Science UA is a service company with deep expertise in AI and Data Science. Our story started in 2016 with the first Data Science UA Conference in Kyiv, and since then, we’ve built one of the largest AI communities in Europe.

About the client

Our client is developing technology to make industrial environments safer and reduce the risk of accidents through proactive monitoring.

The Ukrainian engineering team is building a next-generation industrial safety platform combining Computer Vision, Machine Learning and IoT.

About the role

We are looking for a Middle Systems / Software Engineer to work on the performance-critical core of a real-time Computer Vision platform.

This is not a typical Python Backend role. The main challenge is building and optimising the systems underneath the CV/ML engines — where performance depends on memory, processes, concurrency, data movement, CPU/GPU utilisation and low latency.

You will work on the runtime that executes CV pipelines as a graph of processing stages, with latency measured in milliseconds. You will deal with shared memory, zero-copy data transfer, inter-process communication and process orchestration.

What matters most to us

We are open to engineers coming from C++, Python, Go or similar backgrounds.

The programming language itself is not the main selection criterion. What matters much more is a strong systems engineering mindset and experience understanding what is happening inside a system.

For example, we are particularly interested in engineers who have worked with problems such as:

• reducing unnecessary memory copies;
• optimising CPU/GPU utilisation;
• investigating latency spikes and performance bottlenecks;
• working with processes, threads and concurrency;
• debugging race conditions and difficult low-level issues;
• profiling applications and identifying bottlenecks;
• designing efficient data-processing pipelines;
• working with large amounts of data moving through several processing stages;

• optimising algorithms or runtimes for performance.

   

A candidate does not necessarily need to have worked with exactly the same technologies before.

For example, experience with CUDA, C++, GPU optimisation, real-time processing, robotics, computer vision, video pipelines, scientific computing or other performance-sensitive systems can be highly relevant.

What you’ll work on

• Collaborate with CV/ML engineers to turn model inference code into reliable production pipeline stages.
• Develop and optimise the core Pipeline Engine — an in-process, real-time runtime executing the CV pipeline as a graph of stages.
• Work with zero-copy shared-memory pools for passing frames between processes.
• Develop and optimise low-latency ZeroMQ communication for control messages, metadata and synchronisation.
• Work with pipeline metadata and serialisation boundaries.
• Analyse and improve CPU, memory and latency performance.
• Profile, debug and troubleshoot complex runtime issues.

• Contribute to the architecture and evolution of the real-time processing infrastructure.

   

Requirements

Must-have

• Commercial experience as a Software Engineer / Systems Engineer / C++ Engineer / Python Engineer or similar.
• Strong systems engineering mindset and understanding of:
  • processes and concurrency;
  • memory ownership and data movement;
  • latency vs throughput trade-offs;
  • performance bottlenecks;
  • profiling and debugging;
  • failure modes of complex systems.
• Experience working with performance-sensitive or latency-sensitive systems.
• Experience with at least one of C++, Python, Go or a similar programming language.
• Python is used in the platform, but it does not need to be your primary language. Strong C++ / systems experience is equally relevant.
• Solid Linux fundamentals.

• Solid experience with Docker and containerised environments.

   

Nice-to-have

• CUDA, including IPC handles and stream synchronisation.
• C/C++ or Go.
• OpenCV.
• GStreamer, FFmpeg or RTSP.
• ZeroMQ.
• Shared memory / zero-copy architectures.
• FlatBuffers or other binary serialisation formats.
• Experience building or operating camera/video pipelines.

What we offer

• Competitive compensation.
• Benefits package.
• Strong engineering team.
• Opportunity to work on challenging real-time Computer Vision infrastructure.
• Meaningful industrial safety use case.
• Technical challenges and opportunities for professional growth.

We are looking for a Prompt Spec Engineer who will define how our AI systems communicate, reason, and deliver high-quality outputs across products powered by LLMs.
 

You will be responsible for designing prompt/spec architectures, building evaluation systems, and ensuring that AI responses are consistent, reliable, and production-ready across RAG systems, AI agents, and automation workflows.

What you will do:
 

• Design and evolve prompt/spec architecture for AI products, LLM services, RAG systems, and AI agents, defining prompt structures, model behavior rules, response formats, and quality criteria.
• Develop, optimize, and adapt prompts for different LLMs and use cases, considering output quality, context limitations, cost, and system stability.
• Build and maintain AI evaluation processes including test scenarios, golden datasets, regression testing, and A/B experiments for LLM performance measurement.
• Analyze AI outputs, identify root causes of issues (hallucinations, missing context, retrieval problems, incorrect or unsafe responses), and define improvements.
• Collaborate with AI Engineers and Product Managers to implement prompt solutions into production systems, RAG pipelines, AI agents, and automation workflows, translating business needs into technical specifications.
• Work with LLM evaluation and monitoring tools (such as PromptFoo, Langfuse, and similar solutions) to track metrics, prompt versions, response quality, and system performance.
• Create and maintain structured documentation: prompt specs, evaluation frameworks, usage guidelines, limitations, and best practices for safe and reliable AI behavior.

What we expect from you:
 

• 2+ years of experience in LLM-related roles such as Prompt Engineering, AI Product Operations, AI Evaluation, or similar.
• Hands-on experience designing and optimizing prompts for different LLMs with a strong understanding of model behavior, strengths, and limitations.
• Experience building prompt/spec systems including prompt structure design, behavior rules, response formatting, testing, and versioning.
• Strong experience in AI evaluation: test case design, output analysis, issue detection, and iterative improvement of model performance.
• Understanding of RAG systems, AI agents, structured outputs, tool calling, and principles of reliable LLM system design.
• Ability to collaborate with engineering and product teams, translate business requirements into AI specifications, and document solutions clearly and consistently.
• Upper-Intermediate (B2+) English 
   

What we offer

• Competitive compensation depending on experience
• Work on production-level AI systems (LLMs, RAG, AI agents, automation workflows)
• Office-based work in Lviv with the possibility of a hybrid schedule.
• Direct impact on AI product quality and system behavior
• Access to modern LLM tools and evaluation frameworks
• Professional growth in a fast-moving AI-focused environment
• Opportunity to shape prompt engineering standards inside the company
• Relocation support for candidates from other cities, including assistance with moving and adaptation in Lviv.

Job Description
Front-End Development

Strong commercial experience with React
Proficiency in TypeScript
Experience building applications using Next.js
Experience developing and documenting reusable UI components with Storybook
Ability to interpret and implement designs from Figma
Experience writing unit and component tests using Jest
Strong knowledge of modern HTML and CSS, including CSS custom properties, responsive design, Flexbox and CSS Grid
Understanding of accessibility, browser compatibility and front-end performance best practices
Back-End Development

Strong commercial experience with ASP.NET Core and C#
Experience designing and developing secure, maintainable REST APIs
Experience with Azure Functions and serverless application development
Knowledge of Azure API Management
Experience working with Microsoft SQL Server, including database design and query optimisation
Experience working with Azure Cosmos DB
Understanding of authentication, authorisation and API security, ideally Duende Identity Server
Job Responsibilities
Design, implement and unit test core application components running on Azure
Drive and participate in the functional design
Contribute to the review and analysis of business requirements and development of code reviews and technical designs/specifications
Participate in SCRUM

Department/Project Description
The client is a holding company that administers association football clubs including Manchester City F.C. As for the product, it is mancity.com website and all innfrastructure around. We are using Scrum. Technologies/Tools: - Back-end: C#, .Net; ASP.NET; ASP.NET Web API; Umbraco; MS SQL. - Front-end: HTML/CSS, Angular, WebPack. - Other: Jira, Git, Docker, MS Azure.

Requirements

• 2+ years of commercial experience with Python (Django, DRF, FastAPI)
• Strong knowledge of Python 3.8+
• Solid understanding of web technologies, REST APIs, and client-server communication
• Basic knowledge of React and understanding of frontend development principles
• Good knowledge of Docker and Docker Compose
• Basic understanding of deployment and CI/CD processes; experience with GitHub Actions or similar tools
• Confident Git skills, including reading and reviewing teammates code
• English – Intermediate level or higher (able to participate in technical discussions)

Responsibilities

• Develop and maintain backend applications using Python (FastAPI, Django, DRF)
• Design and implement new features and REST APIs based on business requirements
• Maintain, optimize, and improve the existing codebase for stability and performance
• Develop and maintain frontend features using React
• Participate in code reviews and contribute to improving code quality and development processes
• Assist with deployments, CI/CD pipelines, and basic DevOps tasks

Nice to Have

• Ability to work independently while actively participating in team discussions and brainstorming sessions
• Experience with AWS infrastructure and cloud services

Profisea is a boutique DevOps and Cloud company — AWS Premier Partner specializing in Cloud Architecture, DevOps, DevSecOps and FinOps.

We are looking for a Customer Success Specialist who will work closely with clients using the Uniskai platform, helping them get the most value from the product and ensuring a great customer experience.

This role is perfect for someone who enjoys communicating with people, solving problems, and learning about cloud technologies.

We are open to junior candidates and applicants without prior experience who are motivated to learn and grow in the cloud and DevOps environment.
 

What you will do:

Communicate regularly with clients using the Uniskai platform.

Check if clients are satisfied with the platform and help them use its features effectively.

Collect customer feedback about the product and user experience.

Help clients discover and use platform features and services.

Identify issues or improvement opportunities and share them with internal teams.

Coordinate technical support when needed.

Organize calls or meetings with DevOps or development teams if technical assistance is required.

Track client requests and ensure follow-up.

What we expect:

English — Fluent.

Strong communication skills and client-oriented mindset.

Good organizational skills and attention to detail.

Ability to work with multiple tasks.

Interest in technology, cloud or DevOps will be a plus.

Experience with SaaS platforms, customer support or project coordination will be a plus but not required.
 

What we offer:

Opportunity to be part of a growing company and to grow with us

Being at the forefront of the DevOps and Cloud services industry

Great compensation 

Professional working environment where you will be an essential member of our team

About Project

It is a mobile accounting app for sole traders, freelancers and self-employed workers — income, expenses and tax handled from a phone in minutes rather than evenings.

Every year, hundreds of thousands of self-employed people type "can I claim my phone bill" into Google and land on something written by a content farm, out of date, or aimed at accountants rather than at them. Being the clearest, most accurate answer to those questions is one of the most durable growth assets this business can build — and it compounds while paid channels don't.

The job in one line

You own our written content: what we publish, why, whether it's accurate, and whether it brings us users.

What you'll do

- Own the content strategy and calendar. Build it around real search demand and real user questions, not topics that sound good. Publish to an agreed cadence (4–8 substantial pieces a month) across blog, guides, landing pages, email.
- Win high-intent search. Research and prioritise keywords around allowable expenses, Self Assessment, VAT, deadlines, sole trader vs limited company, and the specific trades and professions we serve. Own on-page SEO, internal linking, content refreshes and technical basics in partnership with Engineering / an SEO consultant. 
- Meet the accuracy bar this subject demands. Tax content is exactly what Google treats as "your money or your life" — it needs demonstrable expertise, named authors, review credits and current dates to rank at all, and it needs to be right regardless of ranking. Every piece touching tax rules, thresholds or figures goes through [our accountant / compliance sign-off] before publishing, and gets re-checked each [April] when rates change.
- Build the deadline content machine. 31 January Self Assessment, the 5 April year end, quarterly VAT/MTD deadlines and the April Budget changes are our peaks. The January content set is written, reviewed and live by November, not drafted in January.
- Own lifecycle and in-product copy. Onboarding emails, activation and re-engagement sequences, deadline reminders, release notes, app store listing copy, plus in-app microcopy in partnership with Product. Measured on activation and retention, not on open rates alone.
- Run the writers. Brief, commission and edit freelance writers and subject-matter contributors [budget: specify], and hold a consistent editorial standard and tone of voice across everything we publish.
- Set the tone of voice. Write and maintain the style guide — plain English, no jargon, no scaring people about HMRC, no condescension about money. Everyone else in the company writes to it.
- Supply the other channels. Turn each substantial piece into raw material for social and creator briefs, and maintain the guides, checklists and templates that Support and Sales send to users.
- Report honestly. Organic sessions and rankings, content-attributed sign-ups and paid conversions, email-to-activation rates, and which pieces earn their keep. Retire or rewrite what doesn't.

 What we're looking for

- 3+ years in content marketing or editorial for a B2C or SaaS product, with responsibility for results rather than output volume.
- Excellent native-standard written English, and the ability to make a dull technical subject genuinely clear. Portfolio of published work required.
- Practical SEO competence: keyword research, search intent, on-page optimisation, content refresh strategy, and comfort in GA4 / Search Console / Ahrefs / Semrush.
- Editing experience — you can improve someone else's draft and give feedback a freelancer will accept.
- Numerate, precise, and willing to check a figure rather than assume it. You'll be corrected by an accountant regularly and won't take it personally.
 

Nice to have

- Experience writing about UK tax, accounting, payroll or personal finance — or an AAT / bookkeeping background.
- You are or have been self-employed, freelance or a sole trader.
- Lifecycle email experience in a real tool (Braze / Customer.io / Klaviyo / Intercom).
- ASO / app store listing optimisation.
- Comfortable in a CMS and with light HTML; experience with a headless setup.
- Experience building a content operation from a standing start.

*Rapidum is an equal opportunities employer. We assess every application against the requirements above and nothing else.*
 

About Project

It is a mobile accounting app for sole traders, freelancers and self-employed workers — income, expenses and tax handled from a phone in minutes rather than evenings.

Nobody downloads an accounting app because they saw a banner ad. They download it because someone they already listen to said "this is what I use, and here's why my January was painless this year." Recommendation is how this category grows.

The job in one line

You build and run our creator programme: find the people our users already trust, strike deals that pay for themselves, and prove it in installs and paying subscribers.

What you'll do

- Build the roster. Find, pitch and sign creators whose audience is self-employed: freelancers and creatives, side-hustle and gig-economy channels, online sellers, tradespeople, small business and personal-finance creators, and accountant/bookkeeper creators. Target: 30+ active partners in year one, weighted toward mid- and micro-tier where trust and conversion are highest.
- Own the commercials. Negotiate flat fee, affiliate/revenue-share or hybrid deals, manage the creator budget line, and defend it with numbers rather than screenshots of view counts.
- Run the tracking properly. A unique code or deep link per creator, attributed through to install, sign-up and first paid subscription (AppsFlyer / Adjust / Branch or equivalent), with monthly payout reconciliation agreed with Finance.
- Own the numbers. Cost per install, cost per paying subscriber, code activation rate, 90-day retention of creator-sourced users, and blended payback period. Weekly reporting, and the discipline to end partnerships that don't convert — including ones with impressive audiences.
- Brief, don't script. Give creators the message, the proof points and the boundaries, then let them say it in their own words. Reject anything that reads like an ad script — this audience switches off instantly.
- Keep every claim safe. Every partnership disclosed to ASA CAP Code standards. Every statement a creator makes about tax, allowable expenses, refunds or deadlines checked against our accountant / compliance sign-off before it goes live, and corrected fast if it slips through. A creator giving wrong tax advice on our behalf is our problem, not theirs — you own preventing that.
- Amplify what works. Identify the best-performing creator content and put paid budget behind it with usage rights agreed up front ([TikTok Spark Ads / Meta partnership ads]), rather than commissioning new content every time.
- Plan around the calendar. 31 January Self Assessment, the 5 April year end and quarterly VAT/MTD deadlines are when this audience is actually thinking about tax. Creator slots for January are booked in October–November, not in January.
- Feed the business. Report back the objections, language and misconceptions you see in creator comments and DMs — it's the cheapest product and messaging research available.

 What we're looking for

- 3+ years running influencer or creator campaigns with commercial accountability — you've held a budget and been measured on installs, sign-ups or revenue, not reach.
- Hands-on experience with affiliate or referral tracking and creator payouts — you've built the tracking and reconciled the payments yourself, not just handed it to an agency.
- Real negotiation experience: you know what a creator is worth, what to walk away from, and how to structure a deal that shares risk.
- You understand the UK self-employed audience well enough to judge whether a creator's followers are actually our users, or just a large number.
- Written English clear and personable enough that creators reply to your first message.
- Accurate and cautious with claims about money and tax — you check before you approve.
 

Nice to have

- Fintech, accounting, tax or personal-finance product experience.
- Existing relationships with UK freelance, business or finance creators, or with talent agencies.
- Experience with app install attribution and mobile measurement specifically.
- Paid amplification of creator content (Spark Ads, whitelisting, usage rights).
- You are or have been self-employed or freelance yourself.
- Experience scaling a referral or affiliate programme.

*Rapidum is an equal opportunities employer. We assess every application against the requirements above and nothing else.*