Jobs at Djinni

Lumitech is actively seeking skilled and independent developers to join our growing engineering team. This is a unique opportunity to contribute to diverse, long-term international projects with a real business impact, leveraging a modern and powerful tech stack. If you value ownership, clean code, and a flexible work environment, we encourage you to apply!

This vacancy covers 3 active projects, and we will determine the best fit for you based on your technical background and interests. We are currently hiring for 2 open positions, specifically:

• 1x Frontend Developer (with basic backend experience)
• 1x Backend Developer

About the Projects
Marketing SaaS Platform for the Saudi Market

A marketing SaaS platform tailored for the Saudi market, designed to help businesses plan, manage, and optimize their marketing activities. The product focuses on data-driven decision-making, automation, and a scalable architecture, with special attention to localization, cultural context, and modern UX standards.

Requirements (Tech Stack & Skills)

• Strong foundation in JavaScript—you can explain core concepts of functional programming.
• Hands-on experience with TypeScript, React, and Next.js.
• Thorough understanding of modern development practices, including clean code, CI/CD pipelines, and rigorous code reviews.
• Familiarity with Agile/Scrum methodologies and collaboration tools (e.g., Jira, Git, ClickUp).
• English level: Upper-Intermediate or higher (for seamless international team communication).

Would be a plus

- Practical backend experience using Node.js with frameworks such as Fastify or NestJS (we rarely use Express).

Project Description:

Our client is a leading global Financial market data provider who runs a change program aiming to migrate a set of legacy data connectors to a new strategic platform. The main driver is to deliver high-quality software that connects Financial Markets across the globe in a real-time, high frequency, and low-latency data management chain. The projects are technically challenging in an environment that is very engaging. Projects will utilize a multitude of different languages and technologies including AWS platform.
 
We are looking for a Senior Python software engineer experience in implementation of backend systems running under Linux/AWS/Azure. Candidate should be capable to coordinate work with QA, Operational, and cross-functional application teams.

Responsibilities:
• Develop high-quality software, design, and documentation
• Provide estimates for specific software feature implementation
• Identify, prioritize and execute tasks in the software development life cycle
• Build unit tests for your code
• Automate tasks through appropriate tools and scripting
• Perform validation and verification testing
• Collaborate with internal teams and vendors to fix and improve products

Mandatory Skills Description:
• English at the level of fluency Upper Intermediate or higher - crucial
• 5+ years of full life-cycle software development experience
• 3+ years of software development using Python
• Experience in developing under Linux platform
• Prod Support experience is required.
• Good analytical skills and a real passion for solving problems
• Soft Skill (very proactive and open-minded person)
• Be result oriented, own a product at each point of SDLC cycle, collaborate closely with team

Nice-to-Have Skills Description:
• Experience working with AWS
• Experience working with C++

Languages:

English: B2 Upper Intermediate

Our mission at Geniusee is to help businesses thrive through tech partnership and strengthen the engineering community by sharing knowledge and creating opportunities🌿
We care about Trust, Partnership, Transparency, and Responsibility. We offer a safe, inclusive and productive environment for all team members, and we’re always open to feedback💜 If you want to work from home or work in the offices in Kyiv, Lviv or Warsaw with stable electricity and Wi-Fi , great — apply right now

Description
We are looking for a skilled and detail-oriented Middle Manual QA Engineer to join our team and contribute to the success of our projects in the FinTech, EdTech, and AgroTech domains.

Requirements:

● 2+ years, but not more than 5 years of experience in manual testing;
● 2+ years of experience with WEB/Mobile application;
● Experience with REST/Graphql API (Postman querying);
● English is spoken and written at the upper-intermediate level or higher is a must;
● Experience with DB and SQL;
● Dev tools experience (Chrome dev tools etc).
●Experience of working in small teams;
● Experience in writing test documentation Master/Level Test plans;
● Knowledge of testing methodologies;
● Ability to specify the testing approaches based on the selected items for testing and its features;
● Experience with performing the analysis of product features/enhancement using a defined procedure and workflow;
● Experience with creating, updating, supporting and providing the review of specifications, requirements, or other documents;
● Experience with Preparing Test Cases and/or Scenarios using common Test Design techniques;
● Experience with operating testing environments (run, deploy new version to it, check logs, etc.);
● Experience with performing Root Cause Analysis and Impact analysis;
● Experience with collecting statistical data using a defined procedure to monitor the quality and reliability of a product;
● Experience with preparing test progress/test summary reports after all testing stages;
● Experience with testing metrics and risks
● Understanding of network principles;
● Understanding of client-server architecture, microservices and backend testing experience.

Would be a plus:
● ISTQB certification.
● Performance testing experience.
●Experience with demo-presentations

Responsibilities:

●Work in a QA team to analyze business requirements, create and execute test cases, and report and verify bugs’ to guarantee the quality of the developed enterprise-level e-commerce solutions;
●Actively participate in daily project team meetings and brainstorming activities related to the project;
●Provide updates to the task estimates and status of assigned tasks;Collaborate with project team;
●Provide recommendations to the QA Lead and/or Project Manager to improve QA-related procedures, systems, and tools;
●Estimation of separate feature / own tasks;
●Provide a positive, polite, and open-minded style of communication;
●Good verbal and writing English language skills.

What will you get:
● Competitive salary and good compensation package;
● Exciting, challenging and stable startup projects with a modern stack;
● Corporate English course;
● Ability to practice English and communication skills through permanent interaction with clients from all over the world;
● Professional study compensation, online courses and certifications;
● Career development opportunity, semi-annual and annual salary review process;
● Necessary equipment to perform work tasks;
● VIP medical insurance or sports coverage;
● Informal and friendly atmosphere;
● The ability to focus on your work: a lack of bureaucracy and micromanagement;
● Flexible working hours (start your day between 8:00 and 11:30);
● Team buildings, corporate events;
● Paid vacation (18 working days) and sick leaves;
● Cozy offices in 2 cities ( Kyiv & Lviv ) with electricity and Wi-Fi ( Generator & Starlink);
● Compensation for coworking (except for employees from Kyiv and Lviv);
● Corporate lunch + soft skills clubs;
● Unlimited work from home from anywhere in the world (remote);
● Geniusee has its own charity fund.

New long-term project for Energy client, where we will create a microservice platform to support various business cases. You will be part of a 50 people team, where we’ll have C# engineers, AQAs, POs and Scrum Masters. 

Requirements:

• 5+ years of experience as .Net developer. At least 2 years as a Lead developer
• Proven experience in working with architects from the client-side
• Proven experience with Azure, Azure DevOps
• Proven experience with working on a microservice-based project
• Ability to lead a team of 4-6 engineers
• OOP Development, Design Patterns, Best Practices
• Good English to work with clients directly
• Any C++ experience is a strong plus

Job responsibilities:

• Strong problem-solving and follow-up skills; must be proactive and take initiative
• Professionalism and ability to maintain the highest level of confidentiality
• Create robust code and translate business logic into project requirements
• Develop code using development best practices, and an emphasis on security best practices
• Leverage technologies to support business needs to attain high reusability and maintainability of current and newly developed systems
• Provide system design recommendations based on technical requirements
• Work independently on development tasks with a minimal amount of supervision
• Write effective unit tests and integration tests to ensure high-quality software delivery
• Leads a team of engineers and AQAs to work on team backlog, support Scrum Master and PO

Data Science UA is a service company with strong data science and AI expertise. Our journey began in 2016 with the uniting top AI talents and organizing the first Data Science tech conference in Kyiv. Over the past 9 years, we have diligently fostered one of the largest Data Science & AI communities in Europe.

About the role and client:
We’re looking for a Machine Learning Engineer to develop applied AI and agentic tools.
Our client is building an advanced AI assistant that helps teams work smarter. By combining semantic search, agentic AI, and state-of-the-art language models, the system enhances internal operations through intelligent, context-aware support and personalized interactions. 

Requirements:
- Strong proficiency in Python;
- Experience with agentic AI frameworks such as LangChain or LangGraph;
- Solid understanding of machine learning and NLP fundamentals;
- Hands-on experience with ML frameworks (e.g., PyTorch, TensorFlow);
- Familiarity with prototyping tools such as Streamlit or Gradio;
- Knowledge of engineering best practices: Git, Docker, cloud basics, and task estimation;
- Practical knowledge of SQL;
- Upper-Intermediate level of English (both written and spoken).

Would be a plus:
- Experience with other agentic or LLM orchestration tools;
- Experience with MLOps or model deployment;
- Comfortable working in Linux terminal environments.

Responsibilities:
- Develop and integrate ML and NLP models to power intelligent assistant features;
- Build agentic workflows using LangChain, LangGraph, or similar frameworks;
- Prototype user interfaces and internal tools using Streamlit or Gradio;
- Collaborate with the engineering and product teams to plan and deliver ML-driven features;
- Work with Docker to manage development and runtime environments;
- Use Git for version control and write clean, maintainable code;
- Query structured data using SQL;
- Contribute to model deployment and operations in a cloud environment (primarily Azure).

About the Client:
Our client delivers comprehensive operational support and expert services to leading insurers, brokers, fleet managers, and automotive manufacturers. Specializing in optimizing claim management, they process millions of claims annually with a focus on efficiency, cost-effectiveness, and transformative strategic innovation leveraging advanced software solutions, cloud computing, and modern design principles.

Short Role Description:
As a Lead Azure DevOps Engineer, you will take a hands-on role in designing, deploying, and maintaining Azure-based platform infrastructure and DevOps tooling. Alongside senior-level engineering responsibilities, you will act as a technical lead, guiding DevOps practices, supporting development teams, and driving continuous improvements in reliability, security, and automation. 

Key Responsibilities

• Design, deploy, and maintain Azure infrastructure and shared platform services
• Maintain and evolve existing Azure environments, including building new infrastructure from scratch
• Drive DevOps best practices related to scalability, reliability, security, and automation
• Improve CI/CD processes, pipelines, and automation
• Improve monitoring, alerting, and overall operational visibility
• Collaborate closely with development teams to enable efficient and stable delivery
• Participate in development team stand-ups and technical discussions as a DevOps lead
• Work with QA teams to integrate functional and automated tests into CI/CD pipelines
• Demonstrate flexibility and adaptability to changes in the technical stack and processes
• Take a proactive approach to implementing and continuously improving DevOps practices

What We Expect from You

• 5+ years of hands-on experience in Azure DevOps / Cloud / Platform Engineering
• Strong hands-on experience with Microsoft Azure (Azure Landing Zones, Front Door, Storage, App Service, Azure SQL Database)
• Experience with or readiness to work on modern Azure compute services (Azure Container Apps, AKS, Azure Functions)
• Solid Infrastructure-as-Code expertise (Bicep, Terraform)
• Hands-on experience with CI/CD pipelines, YAML-based workflows, and Azure DevOps
• Experience with GitHub Flow / GitHub Actions (or willingness to adopt)
• Strong PowerShell scripting skills
• Experience with containerization and Kubernetes-based deployments in Azure
• Good understanding of Azure security, IAM, and Entra ID
• Understanding of security, compliance, and governance standards, including SOC2 Type 2, within DevOps processes
• Strong collaboration and communication skills
• English level: Upper-Intermediate or higher

A streaming platform is expanding its digital video ecosystem and launching a new suite of Connected TV (CTV) applications.
 

The goal is to deliver a modern, high-performance sports video experience with smooth playback, intuitive navigation, and seamless integration across Web, Mobile, and CTV devices 

We are looking for a Junior Manual QA Engineer. You will help ensure high quality across multiple TV devices and operating systems.

Responsibilities

• Perform manual testing of TV applications (Apple TV, Android TV, Fire TV, Roku)
• Test video playback, UI navigation, and remote-based interactions
• Execute test cases and report bugs clearly
• Reproduce issues across different TV devices and OS versions
• Collaborate with developers and product teams
• Participate in regression and release testing
   

Requirements

• 0.5–1.5 years of manual QA experience
• Strong attention to detail
• Basic understanding of software testing principles
• Interest in video streaming or TV applications
• Ability to clearly describe issues and steps to reproduce
• English: Advanced

Reteno is the messaging platform for app user retention. It is designed to identify and retain the right users through perfectly timed and channel-optimized campaigns without developers. We help mobile teams grow their product and revenue through personalized push notifications, in-apps, emails, SMS, and more. Reteno is trusted by 300+ leading brands worldwide, including YogaGo, BetterMe, Promova, Reface, RetouchMe, and plenty of smaller apps that scale with us.

We are looking for a Content manager / Copywriter.  

KEY RESPONSIBILITIES:

• Creating and refining texts for our website and other marketing platforms tailored to the target audience and industry (marketing automation for mobile applications, customer data management) - from short notes to comprehensive white papers.
• Writing and publishing case studies (in cooperation with other team members).
• Enhancing texts with visual materials (images, diagrams, system screenshots, message examples, etc.).
• Simple editing of short videos and translating them with AI-powered tools + publishing them to our YouTube channel with SEO-optimized text descriptions.
• Producing various types of content for the product, including presentations, social media posts, newsletters, and other campaigns.
• Translating existing website content & product-related materials.
• Collaborating with designers, editors, and other specialists within assigned tasks and projects.

PROFESSIONAL EXPERIENCE:

• Advanced proficiency in English.
• Strong writing, editing, and proofreading skills.
• Excellent research abilities & analytical mindset.
• Basic math knowledge (necessary for case study calculations and articles on performance metrics).
• Understanding of SEO fundamentals.
• Familiarity with graphic design software (Figma, Canva, Adobe) is a plus.
• Familiarity with video editing software (CapCut, Descript) is a plus.
• Experience in IT or marketing is a plus.

WE OFFER:

• Flexible 8-hour work schedule, Mon-Fri.
• Opportunity to work remotely or with a hybrid schedule.
• 18 working days of vacation and official holidays off.
•  Partial compensation for English language courses and other educational programs;
• An awesome team of professional and fun individuals.

If you’re looking for a dynamic and ambitious product company with continuous innovations and exciting projects (Reteno, eSputnik, Yespo) — join our team. 

Are you passionate about frontend development and ready to take your first steps in a real-world project environment? Join our internship program and grow your skills in Angular, TypeScript, and modern web development!
 

For this internship, you need to have:

• Good knowledge of JavaScript/TypeScript;
• Basic practical skills in Angular 12+;
• In-depth theoretical knowledge of HTML/CSS/SCSS, including (Flex/Grid);
• In-depth understanding of Git and RestAPI;
• Analytical mindset;
• Ability to collaborate effectively in a team;
• Upper-Intermediate English level (both written and spoken).

Preferred to have:

• Understanding of TypeScript basics (union types, generic types);
• In-depth knowledge of Angular: understanding basic principles (RxJS operators, Directives/Pipe, Routes, Detection Strategy), a good understanding of Lifehooks in Angular.

Our selection process includes:

• HR interview;
• Tech interview;
• Final interview with the founders of the company.

We offer:

• Internship schedule: Monday to Friday, 10.00−19.00
• Office-based / remote work;
• No time trackers or other bureaucratic measures;
• Practical experience on internal projects;
• Networking with experienced professionals willing to share their knowledge and experience;
• Opportunity to obtain a contract with HYS Enterprise as a Junior specialist.
• Gifts for birthdays and professional holidays;
• Interaction with experienced professionals willing to share their knowledge;
• Participation in internal and external events.

About the Company:
We develop and promote niche mobile applications for iOS on a subscription model. Our focus is on high-margin products in the "cleaner" app segment. We are currently scaling our traffic and are looking for a true expert in user acquisition to join our team.

About the Role:
— Planning, launching, and optimizing traffic acquisition campaigns on Google Ads (the primary channel) for iOS applications.
— Developing and testing creative strategies with a focus on video creatives, specifically modal ads that mimic system notifications.
— Managing large budgets and distributing them effectively to achieve target CPA goals.
— Full-cycle campaign management: from creating creatives to analyzing performance and scaling successful setups.
— Close collaboration with the team to achieve key business metrics.

We are looking for a specialist who:
— Has a proven track record as a User Acquisition Manager / Media Buyer in large companies specializing in iOS applications (niche apps, cleaners, VPNs).
— Mandatory experience: Working with Google Ads and apps on a subscription model.
— The ideal candidate has deep experience with modal ad creatives for YouTube and other video platforms within Google UAC.
— Understands key metrics: Cost per Subscription (CPA), Cost per Trial, Retention.
— Has experience managing large monthly budgets (around $30k+ per month and above).
— Is ready to work on our products on a full-time basis.

It will be a big plus:
— Experience buying traffic for niche iOS applications (cleaners, utility).
— Skills in creating and analyzing video creatives.

Project Description:

One of the world's largest providers of products and services to the energy industry has a need to develop and support enterprise information system in Oil & Gas domain specifically related to reservoir management.
We're creating new team which will be closely working with the client.
Technological stack is expected to evolve to the modern Cloud technologies.

Responsibilities:

The candidate will be working on the core part of a numerical simulator.
The candidate should be capable of developing steady-state or transient numerical models for fluid dynamics by himself, implementing them in C++ code, and validating the result.

Mandatory Skills Description:

3+ years of work experience with C++.
Background in Physics.
Good English skills: ability to read/write in English and conduct basic conversations over the phone.

Nice-to-Have Skills Description:

Good knowledge of numerical methods, thermodynamics, and fluid dynamics in addition to Ms.S or Ph.D. degree.
Knowledge of petroleum/reservoir engineering is a big benefit. An ideal candidate would have a degree in physics and coding experience in reservoir or fluid/aero dynamics numerical simulators.
Experience with Java.

Languages:

English: B2 Upper Intermediate

We’re looking for a mid–senior DevOps Engineer to join a small, hands-on team that owns the infrastructure.

We run a hybrid environment: Azure plus bare metal (Hetzner and on‑prem server rooms), Talos Kubernetes, and a modern observability and GitOps stack.

You will:

• Run and evolve our Kubernetes platforms (Talos on bare metal, AKS on Azure).

• Own Infrastructure as Code and GitOps-driven delivery.

• Improve reliability, observability, security, and cost efficiency of production systems.

• Work in a fully remote, global, highly asynchronous team with a lot of autonomy.

You don’t need every single item, but you should recognize yourself in most of these:

• 4+ years in DevOps / SRE / Infrastructure roles with production ownership.

• Strong hands‑on experience with Kubernetes (self‑hosted and/or AKS).

• Practical experience with Terraform and Ansible.

• Experience building and running CI/CD with GitLab CI and/or Azure DevOps.

• Strong Linux fundamentals, troubleshooting, and scripting in Bash and/or Python.

• Good understanding of networking (TCP/IP, DNS, VPNs, load balancers, firewalls).

• Experience working with Azure (subscriptions, basic networking, identity, security concepts).

• Exposure to Prometheus / Grafana / Zabbix or similar monitoring tools.

• Excellent communication skills and very strong written and spoken English.

• Comfortable working in a fully remote, asynchronous, global team with high autonomy.

Nice to have

• Experience running globally distributed, customer‑facing SaaS or energy/IoT systems.

• Production use of OpenTelemetry (OTEL) and modern observability stacks.

• Hands‑on with Talos Kubernetes and hybrid Azure + bare‑metal setups.

• GitOps at scale with Argo CD and self‑managed GitLab (SCM, runners, registry).

• Operating ClickHouse at scale (backup/restore, performance, retention).

• Keycloak / OIDC / SAML, ELK/Wazuh, SAST/DAST, or other security tooling.

• Background in bare‑metal operations (servers, storage, virtualization, networking).

#WeAreIn for jobs that impact everyone's life. What if your ideas could change the way the world connects, powers up, or thinks? As a Senior Validation Engineer on our Research & Development team, you'll have the opportunity to merge creativity with your technical expertise by shaping the future of technology, driving groundbreaking projects, and bringing new ideas to life. Are you in?

Your Role

Key responsibilities in your new role

 

• Develop automated tests for Boot Firmware and associated software for ARM Cortex-M MCUs
• Develop test strategy, test plans and test cases
• Implement test firmware projects (C language)
• Develop Python test scripts to validate the firmware and control automated test equipment
• Set up continuous integration systems to run tests (GitLab CI/CD)
• Analyze test metrics and improve firmware quality

Your Profile

Qualifications and skills to help you succeed

 

• A bachelor's or master’s degree in Electronics/programming or similar fields
• 1-3 years of experience with Embedded systems
• Experience with ARM Cortex-M Microcontroller
• Expertise in Python; proficiency in C; Bash scripting experience is a plus
• Experience with Test Plan/Test case Development, and test methodologies is a plus
• Working knowledge of electronics and experience with GitLab CI/CD is a plus
• Fluency in English

Please send us your CV in English.

Note: This is a temporary 2-years contract with the possibility of staying afterwards.
 

Apiko are looking for a Senior Full-Stack Developer to join an international product team. The role requires a high level of ownership and the ability to work independently on a small project from start to finish.

The project is focused on building high-performance, data-driven web platforms used by millions of users worldwide. It combines innovation, AI-driven personalization, and reliable architecture to create engaging, user-friendly experiences for the global audience.

Responsibilities

• Design, develop, and maintain scalable web applications for a large global audience.
• Work across the full technology stack — from frontend to backend — ensuring high performance and usability.
• Collaborate closely with product managers, designers, and fellow engineers to deliver exceptional user experiences.
• Participate in code reviews, write unit and integration tests, and contribute to continuous improvement.
• Implement new features, optimize existing functionality, and solve complex technical challenges.
• Contribute to architectural decisions and propose innovative, pragmatic solutions.
  
  Requirements
• 5+ years of experience as a Full Stack Developer.
• Strong proficiency in PHP (Laravel) and Vue.js (especially Vue 3 with TypeScript).
• Solid understanding of relational databases (MySQL) and RESTful API design.
• Experience in AWS services (EC2, RDS, Lambda, DynamoDB).
• Hands-on experience with modern frontend development (Vite/Webpack, responsive UI).
• Knowledge of Git, testing tools, and agile development processes.
• Strong attention to code quality, maintainability, and performance.
• Upper-Intermediate level of English or higher.
• A proactive, collaborative mindset and willingness to take ownership.

Nice to Have

• Experience with Tailwind CSS.
• Exposure to Python or Node.js.
• Interest in sports or the iGaming industry.
• Curiosity about AI-powered development tools and automation

Вимоги до володіння мовами

Англійська

C1 – Просунутий 

A fast-growing SaaS company that is changing the way tax, accounting, and auditing firms work, is looking for an ML Engineer to work remotely.

Founded in 2017, the company now has over 350 employees. The company is trusted by over 10,000 firms in more than 25 countries. Its universal platform helps firms manage documents, payments, workflows, and communications more efficiently.

Current tasks to be worked on:

• Text recognition and classification.

• Text matching.

• Document search.

• Creating a basic level (simple working solution), for example, using prompts via a publicly available API to obtain structured output.

The company's mobile app in the App Store has a high rating of 4.9 out of 5.

What the company offers: 30 days of vacation, paid sick leave, training and development budget.

Requirements: experience with classic NLP and modern LLM, RAG, classification tasks.

Experience with document OCR and model tuning would be a plus.