Jobs at Djinni
8596-
· 59 views · 12 applications · 16d
Senior Java Automation QA
Full Remote · Ukraine · 6 years of experience · Upper-IntermediateProject Description: For the world most global bank we are building the platform, which supports various information gathering and processing across the organization and providing access to this data through both private and public cloud. The solution is...Project Description:
For the world most global bank we are building the platform, which supports various information gathering and processing across the organization and providing access to this data through both private and public cloud. The solution is built from the scratch using the latest technologies.
This is 6 months opportunity with potential prolongation.Responsibilities:
- Develop and execute test cases, scripts, plans and procedures
- Automation process setup and improvement
- Development of API and UI tests from scratch
- Integrating automated testing into CI processes
- Creating bug reports based on test execution results
- Participation in documentation review and preparation
- Preparation of product Demo scenarios and participation in Demos- Mandatory Skills:
- Java ME
Mandatory Skills Description:
- At least 6 years of experience in the industry of software development
- At least 5 years of experience as Automation Engineer
- At least 4 years of experience with Java
- At least 3 years of experience with Javascript and Cypress automation
- SQL knowledge
- Experience with Selenium, Cucumber
- Experience with API testing
- Experience with functional and non-functional requirements
- Experience in creating test documentationsNice-to-Have Skills Description:
- Experience with Cross-browser testing
- Good understanding of CI/CD
- Hands-on user experience with Linux
- Experience in working with banking projects
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· 297 views · 78 applications · 16d
QA Automation engineer PHP
Full Remote · Countries of Europe or Ukraine · Product · 2 years of experience · Pre-IntermediateINFOBUS Holding is one of the leading European services for searching and purchasing tickets for buses, trains, and flights. We connect transportation companies with travelers, creating convenient solutions for trip planning and booking. Our mission is to...INFOBUS Holding is one of the leading European services for searching and purchasing tickets for buses, trains, and flights. We connect transportation companies with travelers, creating convenient solutions for trip planning and booking. Our mission is to make comfortable travel accessible to everyone. If you are passionate about travel and want to influence the future of digital products in the travel industry, this position is for you!
Responsibilities:
- Reviewing issues and requests reported by users or team.
- Testing fixes implemented by developers to verify their correctness.
- Independently identifying new issues for further investigation and resolution.
- Creating test plans for new features, updates, or system changes.
- Recommended: writing automated tests to optimize and streamline testing processes.
This job is for you if you have:
- At least 2 years of experience in a similar QA position.
- Understanding of manual and automated testing processes.
- Knowledge of PHP and MySQL (basic programming and database handling skills).
- Attention to detail, analytical thinking, and the ability to work independently.
We offer:
- Exciting long-term projects in an IT company that develops its own internal product and is a market expert in regular transportation services;
- A high level of corporate culture;
- Opportunities to travel with significant ticket discounts.
Interested in this opportunity? Send us your CV!
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· 135 views · 23 applications · 16d
TechOps (Technical Operations)
Full Remote · Ukraine · Product · 1 year of experience Ukrainian Product 🇺🇦We are an international product holding that creates and scales digital products across global markets. Currently, we are looking for a TechOps / DevOps Engineer to join our team. Key Responsibilities: Managing domains and DNS (registration, renewal,...We are an international product holding that creates and scales digital products across global markets. Currently, we are looking for a TechOps / DevOps Engineer to join our team.
🔹Key Responsibilities:🔹
- Managing domains and DNS (registration, renewal, bulk domain replacement).
- Working with registrars (Namecheap, GoDaddy, GCore, etc.).
- Managing DNS records, configuring Cloudflare, SSL certificates, and proxying.
- Handling servers and hosting (ordering VPS/VDS), tracking payments, renewal dates, and auto-renewals.
- Collecting and managing all technical credentials (panels, SMTP, proxy, etc.).
🔹Requirements:🔹
- At least 1 year of experience in a similar role.
- Ability to work in a multitasking environment.
- Experience with cryptocurrency wallets and payment systems.
- Technical operations experience in one of the following: traffic arbitrage, affiliate marketing, SaaS, or AdTech.
- Hands-on experience with Keitaro, Cloudflare, hosting panels, and domain zones.
🔹What We Offer:🔹
- Stable work in an international company with 10+ years on the market.
- Opportunities for professional growth.
- A results-driven team that values initiative.
🔹Work Conditions:🔹
- Schedule: Mon–Fri, 10:00 AM – 6:00 PM.
- A skilled team and room for development.
- Office in Kyiv (3–4 minutes from the metro), fully operational.
- Option to work remotely.
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· 204 views · 34 applications · 16d
Trainee/Junior Technical Support Engineer
Full Remote · Ukraine · Product · IntermediateHello! We’re looking for a Technical Support Engineer to join our team and help ensure seamless operations across our internal systems and products. You’ll be the first line of support, assisting employees with technical issues, managing requests in...Hello! 🚀 We’re looking for a Technical Support Engineer to join our team and help ensure seamless operations across our internal systems and products. You’ll be the first line of support, assisting employees with technical issues, managing requests in Jira Service Management and Microsoft Teams, and working with our internal CRM.
If you’re tech-savvy, eager to learn, and ready to dive into troubleshooting and problem-solving, this role is for you!
Let’s keep things running smoothly together!
REQUIREMENTS
- A genuine desire to learn and explore new technologies.
- Curiosity and a proactive approach to solving unfamiliar problem.
- English proficiency at Intermediate level or higher.
- Previous experience in technical support is a plus, but not required — we value motivation and a willingness to grow!
NICE TO HAVE
- Experience working with and configuring CRM systems;
- Familiarity with Jira Service Management or similar ticketing systems;
- An understanding of how IP telephony works.
RESPONSIBILITIES
- Receiving and processing employee requests via Jira Service Management and Microsoft Teams related to various internal products.
- Working with the internal CRM system: setting up calls, diagnosing issues, and resolving technical problems.
- Communicating with IP telephony providers: configuring new trunks and troubleshooting existing ones.
- Investigating and resolving IP telephony-related complaints from company managers.
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· 79 views · 24 applications · 16d
UX Content Writer
Full Remote · Worldwide · Product · 2 years of experience · Upper-IntermediateAbout Develux We help hundreds of thousands of students across the world tackle their academic challenges – from research to writing. Our platform empowers clients to set requirements and collaborate directly with authors, while we’re always expanding and...About Develux
We help hundreds of thousands of students across the world tackle their academic challenges – from research to writing. Our platform empowers clients to set requirements and collaborate directly with authors, while we’re always expanding and improving it to deliver even more value.
We’re looking for a UX Content Writer who’s ready to take ownership, shape the product, and bring their ideas to the table.
What you’ll do:- Take full ownership of UX writing across core user flows – from onboarding to tooltips to transactional messages and error states
- Collaborate with cross-functional teams to shape new product flows with clear, consistent, and user-focused copy
- Write, test, and iterate on copy that supports conversions, guides users intuitively, and builds trust in complex user journeys
- Conduct UX copy audits to identify and eliminate friction points caused by unclear or inconsistent messaging
- Work with UX researchers to develop and test hypotheses around copy impact (e.g., A/B tests for CTAs, microcopy variations, etc)
- Maintain and continuously refine a UX writing system and knowledge base
About your experience & Required skills:
- 1-3 years of experience in UX writing or product content design
- Proven ability to own the copy side of complex product workstreams, not just follow a content brief
- Excellent written English (B2+), with a focus on clarity, tone, and brevity
- Strong understanding of UX principles and how language impacts user behavior
- Ability to collaborate closely with researchers and designers and apply insights from user testing, UX research, and data
- Analytical mindset and a strong sense of ownership
- Comfortable working in an environment with shifting priorities and product iterations
What we offer:- Flexible schedule and work-life balance - start your day anytime between 9:00 and 11:00, with 8 working hours and a 1-hour lunch break
- Salary paid in USD on the 1st of each month
- 100% compensation for professional training and courses
- English lessons covered up to $80/month (after passing probation)
- Sports and wellness support up to $80/month (post-probation)
- Medical insurance (50% after probation) or $200/year for personal healthcare
- Regular team perks: Pizza Fridays, corporate lunches, and teambuilding events
- Growth opportunities in a team of experienced, open-minded professionals who welcome your ideas for improving how we work
Feel our culture:
People. Always. We put people first – in words and in action.
Real Impact. Your voice shapes the product and the experience.
Say It Simply. No buzzwords, no egos – just real talk.
Think Like an Owner. Solve problems, ask questions, and lead with curiosity and care.
Learn. Try. Level Up. Every project is a chance to grow.
Our hiring process:- Screening call with our recruiter (1 hour)
- Technical interview with the Hiring manager (1-1.5 hours)
- Test task(optional)
- Reference check
- Proposal for cooperation with Develux
We’re transparent every step of the way and provide quick, honest feedback.
Q&A:Do you work with sole proprietorship (FOP) or gig contracts?
We collaborate through a Ukrainian FOP model or B2B contracts for specialists based in other countries.
Can I work remotely or from another country?
Yes. We understand the importance of being safe.
Do you cooperate with Russia and its citizens?
No. Our company was founded in 2014, and even then, we understood that Russia is an aggressor country, and we do not want to have any relations with it.
Feedback on CVs will be provided only if the application proceeds to the next stage. Otherwise, your data will be retained in our CV database for future opportunities. The review process may take up to 10 working days.Let’s see if we’re a match!
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· 223 views · 36 applications · 16d
TechOps/DevOps
Full Remote · Countries of Europe or Ukraine · Product · 1 year of experience Ukrainian Product 🇺🇦We are an international product holding that creates and scales digital products across global markets. Currently, we are looking for a TechOps / DevOps Engineer to join our team. Key Responsibilities: Managing domains and DNS (registration,...We are an international product holding that creates and scales digital products across global markets. Currently, we are looking for a TechOps / DevOps Engineer to join our team.
🔹Key Responsibilities:🔹
- Managing domains and DNS (registration, renewal, bulk domain replacement).
- Working with registrars (Namecheap, GoDaddy, GCore, etc.).
- Managing DNS records, configuring Cloudflare, SSL certificates, and proxying.
- Handling servers and hosting (ordering VPS/VDS), tracking payments, renewal dates, and auto-renewals.
- Collecting and managing all technical credentials (panels, SMTP, proxy, etc.).
🔹Requirements:🔹
- At least 1 year of experience in a similar role.
- Ability to work in a multitasking environment.
- Experience with cryptocurrency wallets and payment systems.
- Technical operations experience in one of the following: traffic arbitrage, affiliate marketing, SaaS, or AdTech.
- Hands-on experience with Keitaro, Cloudflare, hosting panels, and domain zones.
🔹What We Offer:🔹
- Stable work in an international company with 10+ years on the market.
- Opportunities for professional growth.
- A results-driven team that values initiative.
🔹Work Conditions:🔹
- Schedule: Mon–Fri, 10:00 AM – 6:00 PM.
- A skilled team and room for development.
- Office in Kyiv (3–4 minutes from the metro), fully operational.
- Option to work remotely.
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· 32 views · 6 applications · 16d
2d Animator (Spine)
Full Remote · Worldwide · Product · 2 years of experience · IntermediateWe’re looking for a 2D Spine Animator to create animated graphics for online slot games — characters, backgrounds, UI elements. This is a startup-stage project, where your fresh perspective can truly define the artistic direction. You’ll have real...We’re looking for a 2D Spine Animator to create animated graphics for online slot games — characters, backgrounds, UI elements. This is a startup-stage project, where your fresh perspective can truly define the artistic direction. You’ll have real influence — on the style, the product, and the final result.
Responsibilities
- Create and develop animated graphics for online slot games: characters, backgrounds, symbols, and UI elements using Spine 2D;
- Prepare and export assets as needed (slicing, packaging, optimization);
- Build skeletons, set up weights, work with the timeline, and create texture atlases;
- Manage slot animations (switching images, toggling elements on/off);
- Configure export settings for different technical requirements;
- Collaborate closely with artists and developers to ensure smooth integration of animations into the game;
- Actively participate in creative tasks and bring new ideas to the table.
Requirements
- 2+ years of experience in character and in-game animation for online slots;
- Advanced proficiency in Spine 2D (minimum 2 years), Photoshop, and After Effects;
- Strong understanding of animation principles and visual storytelling;
- Ability to work independently and take ownership of tasks.
Nice to Have
- Familiarity with the gambling industry and its visual trends;
- Initiative and willingness to suggest creative ideas beyond the initial brief.
Working Conditions
- Full-time position (Mon–Fri);
- Standard working hours starting around 9:00 AM Cyprus time;
- Remote or hybrid format possible (to be discussed);
- Opportunity to shape a project from early-stage development and grow with the team.
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· 199 views · 35 applications · 16d
iOS Developer
Full Remote · Countries of Europe or Ukraine · Product · 2 years of experience · IntermediateWe are seeking an experienced and proactive iOS Developer to join KissMyApps team. Kiss My Apps is an Ukrainian startup studio specializing in the development of mobile first products. Our portfolio includes more than 20 applications of various...We are seeking an experienced and proactive iOS Developer to join KissMyApps team.
Kiss My Apps is an Ukrainian startup studio specializing in the development of mobile first products. Our portfolio includes more than 20 applications of various categories: Astrology, Utilities, Lifestyle, Health & Fitness, and others.
Why should you work with us?
✔️Over the last year, we have grown 5 times and continue to expand the team.
✔️ We have expertise in creating mobile applications from scratch and promoting them.
✔️ Lack of bureaucracy — we are flexible and quick in making decisions.
✔️ Everyone in the team takes direct part in the development of the product Being a developer at KMA is not about doing incomprehensible tasks.
It means active participation in product feature planning, development and interaction with other team members to improve the product with understanding what and why you are doing.
Hard skills required for the position:
- At least 2 years of working experience with Swift
- Strong skills both with UIKit and with SwiftUI
- Experience with Apple StoreKit
- Knowledge of application architecture, memory management, network programming and concurrency
Job responsibilities include:
- Collaborating with the team to define, develop, and ship new features for iOS applications;
- Bug fixing and improving application performance;
- Maintaining technical documentation.
We offer the following benefits:
- A flexible schedule with the option to work fully remotely or from our awesome offices in Kyiv or Warsaw.
- Paid vacation and sick leave.
- Participation in conferences and seminars organized by the Netpeak Group.
- 50% compensation for participation in external educational events.
- 50% coverage for English language courses.
- 50% coverage of health insurance, as well as psychotherapy, dental care, and sports expenses.
- Individual and group sessions with a corporate psychologist.
- English speaking clubs with native speakers and online yoga sessions.
- Corporate events and activities both across the entire Netpeak Group and locally within Kiss My Apps. Large-scale events are currently on hold, but we’re looking forward to bringing them back as soon as it’s possible and safe for everyone.
- We provide comfortable equipment regardless of your work format.
The option to book for persons liable for military service is available after the successful completion of the trial period, provided that properly executed military registration documents are available and that the company’s internal capabilities, as determined in accordance with applicable law, permit it.
More
Kiss My Apps is part of the Netpeak Group. Currently, about 20% of the Netpeak Group team is involved in various initiatives to counter russian propaganda. Some of the Netpeak Group principles are working with the Ministry of Digital Transformation of Ukraine and the cyber police. There are several volunteer projects in which we participate: content creation, advertising on social networks, promotion of Ukrainian products, and humanitarian aid. The NGO “Moye Misto” — which is part of the Netpeak Group — together with volunteers, is currently engaged in maintaining animal shelters, as well as purchasing necessary items for some units of the Armed Forces. -
· 42 views · 3 applications · 16d
Hardware Engineer, PCB designer, Modeling and simulation engineer to $3000
Full Remote · Countries of Europe or Ukraine · Product · 2 years of experience · Pre-Intermediate MilTech 🪖Bavovna Defence is a company operating in the miltech sector, specializing in the development of electronic devices for the frontlines. Our products include munition drop controllers, remote detonation systems, target tracking systems, communication...Bavovna Defence is a company operating in the miltech sector, specializing in the development of electronic devices for the frontlines. Our products include munition drop controllers, remote detonation systems, target tracking systems, communication systems, and more.
For the past 2.5 years, we have been fully dedicating ourselves and our work to bringing Ukraine’s victory closer and strengthening its defense capabilities.
We are not planning to stop—only to expand! That’s why we are currently looking for a skilled Hardware Engineer, whose responsibilities will include:
- Developing technological maps for the production of electronic devices.
- Designing electronic devices, as well as physical and mathematical models of systems.
- Creating physical models for simulating control systems for electronic devices and aerial vehicles in MATLAB/Simulink.
Researching and adapting new production technologies (related to development).
Requirements:
- Strong knowledge of physics and mathematics.
- Experience working with safety systems.
- Understanding of analog and digital circuit design.
- Knowledge of electromagnetic compatibility (certification experience is a plus).
- Understanding of PCB manufacturing/assembly and knowledge of IPC standards.
- Experience with Git.
- Proficiency in Altium Designer / OrCad / Eagle.
- Ability to read blueprints and work with STEP models.
- Experience with SPICE simulators: LTSpice, PSpice, Multisim, Microcap, Proteus.
English proficiency (spoken skills are preferred).
Bonus points for:
- Experience with BGA packages / multilayer (8+) PCBs.
- Experience with STM32 controllers / FPGA.
- Experience in RF circuit/antenna/SDR system design.
- Experience with instrumentation amplifiers.
- Experience in designing switching power supplies.
- Experience in Safety-Critical / Mission-Critical system development.
What we offer:
- Competitive salary (at or above market level, depending on technical interview results).
- Remote work format.
- Flexible schedule (we prioritize task completion within deadlines rather than fixed working hours).
- A truly friendly team of professionals and like-minded individuals who will support, assist, and eagerly share their expertise with new team members.
We look forward to having you on board! 🚀
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· 63 views · 15 applications · 16d
Copywriter with analytical and research skills
Part-time · Full Remote · Worldwide · 2 years of experience · Advanced/FluentBlue Carrot, a media production agency, is looking for an experienced Copywriter. Task: Writing articles based on the provided technical tasks and expert commentary by SEO specialists. Additionally, if necessary, you'll need to add simple briefs for...Blue Carrot, a media production agency, is looking for an experienced Copywriter.
Task: Writing articles based on the provided technical tasks and expert commentary by SEO specialists. Additionally, if necessary, you'll need to add simple briefs for accompanying illustrations/videos/materials and incorporate conversion elements into the articles.
What You'll Write About :
1. E-learning Content Development
- Online course creation – workflows, timelines, and content structuring
- Instructional and learning design strategies – evidence-based approaches to engaging diverse learners
- AI in e-learning – how it improves engagement and speeds up course production
- Outsourcing & vendor collaboration – smart strategies for working with external teams
- Translation & localization – adapting educational content for global audiences
Toolkits & workflows – practical tips using tools like Articulate Storyline and Rise
2. Video Marketing & Animation
- Explainer video production – including pricing guides, styles, and ROI tips
- Animation styles – from kinetic typography to traditional 2D animation
*Note: The list of topics within each category continues to evolve. While direct experience in these areas is a plus, it's not a strict requirement. We're looking for someone with strong research skills and a willingness to explore unfamiliar topics with confidence and curiosity.
Target Audience:
Location:USA/EU;
Role: startup founders/SMBs, marketing managers, VP Marketing, online educators.
Examples of ready-made articles:
- ttps://bluecarrot.io/blog/why-video-based-learning-is-essential-for-corporate-training/
- https://bluecarrot.io/blog/how-to-create-an-online-course-process-and-tips-from-professional
- https://bluecarrot.io/blog/cognitive-theory-of-video-production-for-universities-and-higher-education/
- https://bluecarrot.io/blog/educational-and-training-video-production-ultimate-guide/
Requirements:
- 2+ years of experience writing articles based on SEO guidelines.
- Strong research skills to gather accurate, up-to-date information and create insightful, well-structured content.
- Analytical thinking to process complex topics and present them clearly and logically.
- Relevant portfolio: engaging articles for Western markets in digital fields such as IT, design, marketing, SaaS, e-learning, etc.
- Understanding of how to insert internal links to other articles and include conversion elements within the text.
- Advanced or native-level English (additional proofreading support will be provided).
- Familiarity with online education or willingness to learn quickly (nothing too complex — motivation is key).
- Solid understanding of marketing concepts: sales funnel, conversions, marketing/advertising tools, etc.
We offer:
- Freelance employment - currently plenty of work available (we have a content plan and individual workload will be discussed).
- Regular employment - 1-2 articles per month
We want and are ready to produce content for people that is engaging to read and share. Possibly, some articles will be distributed not only through our website but also through popular external resources.
We produce unique content and original messages, so it's important for us that the writer approaches material writing thoughtfully and responsibly. Superficial "SEO articles" that are based on competitors' articles (which in turn are also quite superficial) are not suitable for us.
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· 94 views · 17 applications · 16d
DevOps / Infrastructure Engineer
Full Remote · Ukraine · 4 years of experience · IntermediateWe are looking for a DevOps / Infrastructure Engineer to support and enhance an internal application built for managing infrastructure on Google Cloud Platform (GCP). The application is written in Go (net/http + SQL/databases) with a React frontend. Your...We are looking for a DevOps / Infrastructure Engineer to support and enhance an internal application built for managing infrastructure on Google Cloud Platform (GCP). The application is written in Go (net/http + SQL/databases) with a React frontend. Your role will focus on automation, infrastructure as code, CI/CD, and operational support.
Key responsibilities:
- Design, maintain, and improve cloud infrastructure on GCP using Terraform. Including IAM, VPC, GKE, Cloud Run, Cloud Sql, BigQuery, Composer(Airflow), Workstations
- Set up and manage IaC CI/CD pipelines in GitLab
- Support and monitor Airflow (Google Cloud Composer) workflows
- Collaborate with development teams to deploy and operate the application
- Troubleshoot and resolve issues across dev, staging, and production environments
- Ensure high availability, performance, and scalability of infrastructure
- Contribute to the development and maintenance of the application backend (Go) and frontend (React)
Requirements:
- 3+ years of experience in DevOps, Site Reliability, or Infrastructure Engineering
- Strong experience with Terraform and Infrastructure as Code principles
- Hands-on experience with GitLab CI/CD
- Proficiency with GCP services and architecture
- Familiarity with Airflow or Google Cloud Composer
- Working knowledge of Go (net/http, SQL/databases) and JavaScript (React)
- Good understanding of networking, security, and containerization concepts
- Strong problem-solving and communication skills
- English proficiency (Upper-Intermediate or higher)
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· 79 views · 9 applications · 16d
Senior Test Automation Engineer
Full Remote · Ukraine · 5 years of experience · Upper-IntermediateProject Description: The goal of platform we build is to create an automated end-to-end solution to facilitate Exam Management Cycles for the Regulatory Authorities and assessment activities across the three lines of defense. This application is used to...Project Description:
The goal of platform we build is to create an automated end-to-end solution to facilitate Exam Management Cycles for the Regulatory Authorities and assessment activities across the three lines of defense.
This application is used to automate Document and Data retrieval. It also provides ability to view documents that are auto retrieved as well as to request documents through automatic generation of email requests.
This solution will allow to have one workspace to work for both roles as Maker and Checker, auto retrieve of documents and data, and build automatic storage of all documents collected for an Exam/Cycle into the document storage.
The system is targeting to shorten the timeline for source document and data collection, automates documents and structured data collection, reduce manual work and overall time spent on examination management activities.
Team consists of Dev, BA, QA, Tram Lead, and is supported by dedicated DevOps group. We use agile methodologies on a team level (Scrum, Kanban).
Key project technology stack: Kotlin, Java, Reactor, React, Typescript, Playwright.Responsibilities:
• Automation process setup and improvement
• Development of test automation framework architecture
• Building and maintaining automated testing frameworks
• Test case adjustments for automated testing needs
• Integrating automated testing into CI processes
• Test data and test environment preparations
• Creating bug reports based on test execution resultsMandatory Skills Description:
• Automation experience using Playwright - 1+ year
• Automation experience - 4+ years
• Manual testing experience - 2+ years
• Experience in testing Restful APIs - 1+years
• Solid skills in Javascript (NodeJS/Typescript)
• Experience in non selenium tools Cypress/puppeteer
• Familiar with test runners like Jest or Mocha, and testing utilities like Chai, Enzyme or any other
• Strong knowledge of test design
• Strong experience with continuous integration processes and tools (Jenkins, Teamcity or similar)
• Experience of working with version control systems (e.g. GIT, Bitbucket and others)
• Strong proficiency in Atlassian Product Suite (Confluence, JIRA)
• Understanding of agile software development methodologies
• Ability to prioritize test cases based on risk analysis
• HTML / CSS / JSON / XML knowledge
• Strong analytical skills
• Accountability and self organization
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· 50 views · 7 applications · 16d
Senior Full-Stack Engineer - Real-Time Bidding / AdTech
Full Remote · EU · 7 years of experience · Advanced/FluentAbout the Role: We are building cutting-edge advertising technology and are looking for an experienced Senior Full-Stack Engineer with deep expertise in real-time systems and RTB platforms. You will play a key role in the design and development of...About the Role:
We are building cutting-edge advertising technology and are looking for an experienced Senior Full-Stack Engineer with deep expertise in real-time systems and RTB platforms. You will play a key role in the design and development of high-performance DSP/SSP components, working on complex distributed systems where every millisecond counts. This is an opportunity to have a significant impact on our technology stack and product direction.
Key Responsibilities:
- Design, build, and optimize real-time bidding systems with extremely low-latency requirements.
- Develop scalable backend services in Node.js (NestJS), handling high-throughput traffic and real-time decisioning.
- Build client-facing dashboards, reporting tools, and management interfaces using modern frontend frameworks (Vue.js or React).
- Architect and maintain data pipelines across MySQL, Redis, and ClickHouse for high-volume transactional and analytical workloads.
- Design and operate message-based streaming architectures using Kafka and RabbitMQ.
- Contribute to infrastructure design, including server tuning, HAProxy/Nginx configuration,and deployment automation.
- Participate in architectural planning, scaling strategies, and system performance optimizations.
- Collaborate cross-functionally with product, operations, and data teams to support business growth.
Requirements:
- 7+ years of hands-on software development experience.
- Strong proficiency in TypeScript and Node.js, with production experience using NestJS.
- Solid experience building and scaling DSP/SSP platforms or other high-throughput RTB systems.
- Deep knowledge of distributed systems, low-latency processing, and system-level optimizations.
- Expertise with relational and analytical databases (MySQL, Redis, ClickHouse).
- Experience with Kafka, RabbitMQ, or other real-time streaming/messaging platforms.
- Familiarity with DevOps processes, CI/CD pipelines, server configuration, and load balancing (HAProxy, Nginx).
- Strong problem-solving skills with a focus on performance, reliability, and scalability.
- Excellent communication skills and fluent English.
Bonus Points For:
- Experience optimizing bid request pipelines (OpenRTB, Prebid, Header Bidding).
- Familiarity with high-performance logging, monitoring, and observability stacks.
- Experience with containerization technologies (Docker, Kubernetes).
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· 78 views · 18 applications · 16d
Back-End (Python) Developer
Full Remote · Ukraine · 5 years of experience · Upper-IntermediateJoin an innovative early-stage startup developing a no-code, AI-powered data analysis platform tailored for investors. The product is designed to increase productivity, offering a one-stop solution for modern quantitative research. This is a unique...Join an innovative early-stage startup developing a no-code, AI-powered data analysis platform tailored for investors. The product is designed to increase productivity, offering a one-stop solution for modern quantitative research.
This is a unique opportunity to shape a cutting-edge product that leverages the latest in LLMs and AI technologies, with a direct impact on how investment professionals interact with data.
Tech Stack:
Core Backend Technologies:
Python, SQL, Microservices Architecture
Pandas, Pydantic, FastAPI
GraphQL APIs
AI and Data Pipelines
PostgreSQL (with potential shift toward other structured or time-series databases)
DevOps & Cloud Tools:
Docker, AWS, GitHub Actions
The team follows a hybrid Scrum/Kanban methodology.Requirements:
- Proven experience with Python, FastAPI, and microservices
- Solid understanding of SQL and database design
- Hands-on experience with Pandas, Pydantic, and backend development for AI/data-driven products
- Familiarity with Docker, AWS, and CI/CD tools like GitHub Actions
- Background in FinTech or working with financial data is a strong plus
- Upper-Intermediate or higher level of English (written and spoken)
Responsibilities- Contribute to building the first version of the product from scratch
More
- Take ownership of backend tasks and drive them from concept through production
- Collaborate with AI, data, and frontend teams to deliver scalable and high-performance features
- Build and maintain complex data pipelines and backend services in a microservices architecture
- Work independently with minimal supervision in a fast-paced startup environment -
· 49 views · 5 applications · 16d
Senior Java Developer
Full Remote · Ukraine · 5 years of experience · Upper-IntermediateProject Description: Our client is a Swiss leader in online trading, serving over 500,000 clients who can trade more than 3 million products through highly performant and secure platforms. In addition to various online trading products, including stocks,...Project Description:
Our client is a Swiss leader in online trading, serving over 500,000 clients who can trade more than 3 million products through highly performant and secure platforms. In addition to various online trading products, including stocks, bonds, funds, derivative products, and cryptocurrencies, we also offer Forex, Robo-Advisory, and Mortgage solutions.
Since 2012, we have partnered with the client to develop innovative and cutting-edge digital solutions that help customers achieve their investment goals. Our solutions are continuously evolving, transitioning into atomic microservices and self-contained systems.
We're looking for a responsible and proactive person who will help our products become better.Responsibilities:
- Implementing user stories and technical tasks;
- Writing tests;
- Reviewing your teammates' code;
- Fixing maintenance and support bugs;
- Participation in meetings with the customer;
- Requirements refinement, sprint planning and task estimationMandatory Skills Description:
- 5+ years of commercial experience as a Java developer
- Solid knowledge of Java core, Spring, ORM, SQL, and Redis
- Firm understanding of Client-Server architecture, REST, Servlets
- Hands-on experience with Java Messaging and Microservices
- Experience with Maven, bash, Docker
- Good spoken English and solid communication skills overall
- Strong analytical and problem-solving skillsNice-to-Have Skills Description:
- Education: Bachelor's / Master's degree in computer science or computer engineering
- Experience in using JavaScript, HTML, and CSS