Jobs

US Company is searching for a Middle Backend Java Developer to join a team working on microservices-based enterprise platforms. Interesting long-term project (3+ years), distributed team, full-time, official contract. Remote work, European business hours.

Brief project description:
The platform consists of cloud-hosted microservices and partially - legacy code, handling core business logic and integrations for delivery service across Europe. The role includes implementing new features, fixing bugs, and supporting production services under guidance from senior developers.

Main Requirements:

• Solid understanding of backend development and APIs: 5+ years
• Experience with Java and Spring Boot frameworks
• Willingness to learn microservices patterns and cloud practices
• Ability to follow coding standards, write tests, and maintain code quality

Tech Skills:

• REST API development, SQL/NoSQL databases
• Implementing new features and small-to-medium enhancements
• Unit and integration testing
• Working with version control systems (Git) and CI/CD pipelines

Programming Languages & Frameworks:

• Java 8–21: 5+ years
• Spring Boot / Quarkus: 5+ years
• SQL (PostgreSQL), NoSQL (MongoDB, Cassandra): 3+ years
• RabbitMQ, Kafka: 3+ years

Work conditions:

• Distributed team, remote work
• Scrum approach, 5–6 team members / team
• Full-time (40 hours per week), European business hours
• Official contract: salary, sick-leave days, holidays, vacations

Hiring process:

• Preliminary interview – 30 mins
• Internal tech interview (Java, backend tasks) – 1 hour
• Interview with senior and team – 1 hour

US Company is searching for a Senior Backend Java Developer with strong experience in developing and maintaining enterprise microservices-based platforms. Interesting long-term project (3+ years), distributed team, full-time, official contract. Remote work, European business hours.
 

Brief project description:
The platform is a set of microservices deployed on cloud infrastructure and partially - legacy code, supporting core business processes in delivery service across Europe. The role focuses on performance, security, maintainability, and implementing new features in a high-availability production environment.

Main Requirements:

• Strong experience in building scalable microservices: 8+ years
• Solid understanding of event-driven systems and API design
• Experience with CI/CD pipelines and automated testing
• Knowledge of cloud deployment (AWS, Azure, OpenShift)
• Ownership of assigned modules and code quality

Tech Skills:

• Microservices architecture, REST APIs, message brokers
• Refactoring, performance tuning, troubleshooting production issues
• Writing unit, integration, and end-to-end tests
• Security best practices for backend services

Programming Languages & Frameworks:

• Java 8–21: 8+ years
• Spring Boot / Quarkus: 8+ years
• SQL (PostgreSQL), NoSQL (MongoDB, Cassandra): 7+ years
• RabbitMQ, Kafka: 5+ years

Work conditions:

• Distributed team, remote work
• Scrum approach, 5–6 team members / team
• Full-time (40 hours per week), European business hours
• Official contract: salary, sick-leave days, holidays, vacations

Hiring process:

• Preliminary interview – 25-30 mins
• Internal tech interview (backend, Java, cloud) – 1 hour
• Interview with team and Tech Lead – 1 hour

Job Title: Senior Python Backend Developer

Location: Fully Remote

Position Type: Full-Time/Freelance
 

About Us:

OrangeUni is a forward-thinking company dedicated to delivering cutting-edge digital solutions. We value innovative ideas, meticulous attention to detail, and a deep understanding of user needs. We are looking for a Senior Python Backend Developer to join our team to create scalable services, ensuring top-notch web security and user experience. If you fancy working on the latest backend features, focusing on both functionality and security, have excellent English proficiency and the ability to thrive in a dynamic, remote environment, we’d love to connect with you!

Position Overview:

Your expertise as a Senior Python Backend Developer and DevOps engineer, your understanding of web security principles will be invaluable to our team. You will be handling a complex, high-traffic platform with thousands of registered users, including video streaming, image processing, and an internal CRM.

Required Skills and Experience:

- Expertise in Python (5+ years) and Django framefork, ORM, migrations, admin interface, creating REST API with Django Rest Framework;

- Experience with setting up or maintaining AWS (S3, RDS, SNS, SQS, CloudFront, CloudFormation) and implementation of OAuth flows;

- Proficiency with Celery (4.x/5.x) and message brokers (Redis or RabbitMQ);

- Experience using Docker (Dockerfile, docker-compose) and basic CI/CD knowledge (GitHub Actions or similar);

- Good knowledge of SQL and relational databases (preferably PostgreSQL);

- Proficiency in Git (Pull/Merge Requests, Code Reviews, Git Flow);

- English language — Full professional proficiency in English.

This is a Senior position only. Only apply if you have at least 5 years of experience in these areas:

• Language: Python (primary), basic JavaScript (Vue.js — nice to have)
• Database: PostgreSQL
• Framework: Django, Django REST Framework
• Models: Django ORM models (relational)
• DevOps: AWS (S3, RDS, SNS, SQS, CloudFront, CloudFormation)
• Architect Patterns: RESTful API
• Broker Message: Redis or RabbitMQ
• Cache: Redis

• Monitoring Tools: Sentry (Pytest, Flake8, Bandit, wemake-python-styleguide - nice to have)

   

Nice to Have:

- Familiarity with payment gateways (Mollie or similar Stripe, PayPal, etc.);

- Setting up and optimizing Sentry, logging, and monitoring;

- Testing and working with code quality tools: Pytest, Flake8, Bandit, wemake-python-styleguide;

- Work with internationalization and external integrations (CRM, other APIs);

- Basic Vue.js knowledge or experience interacting with a Vue-based frontend;

- Using feature flags with django-waffle and advanced admin plugins (e.g., CKEditor, image-cropping, sortable2);

- Familiarity with Poetry (managing dependencies with pyproject.toml), Fabric (deployment scripts), and/or Django Channels (real-time WebSockets);

- Handling PDF and image processing (e.g., PyMuPDF, Pillow, heif-image-plugin).

What We Offer:

- A fully remote role with flexible working hours.

- The opportunity to work on innovative projects alongside a collaborative and talented team.

- Competitive full-time/freelance compensation, based on experience.

- Room for professional growth and long-term opportunities within the organization.

If you are passionate about creating clean, maintainable, efficient back-end code and driving business success, we want to hear from you!

Apply today and join the OrangeUni team as our next Python Developer!

Quintagroup is looking for a Senior Python Developer to join a project for a leading UK-based fintech product. 

Our client builds innovative financial solutions and actively uses modern technologies to support both businesses and consumers.

RESPONSIBILITIES:

• development with Python, AWS
• participation in planning and execution stages
• collaborate closely with an international development team (UK/UA/US) and the CTO to design, implement, and optimize fintech applications.
• take part in project planning and execution to ensure timely delivery of key milestones.
• build and integrate cloud-based solutions, primarily on AWS.
• improve application performance and maintain the security of sensitive financial data.

TECH STACK:

Python 3.11, Django 4.2, Postgres, AWS (EventBridge, Lambda, ECS, RDS, DynamoDB etc.), Docker, Pandas, Polars, Terraform

REQUIREMENTS

• 6+ years of experience with Python
• 4+ years of experience with Django Python frameworks
• Experience with AWS 
• Excellent communication skills in English (B2+ level or higher).
• Able to work in a team-oriented, collaborative environment

• Ability to share knowledge

   

WE OFFER:

• Flexible working format: fully remote, hybrid, or office-based.
• Competitive salary and comprehensive compensation package.
• Personalized career growth paths and mentorship opportunities.
• Access to professional development tools, including tech talks and training sessions.
• Education reimbursement for relevant certifications or courses.
• Memorable gifts for anniversaries and corporate events.
• Engaging team-building activities and location-specific perks.

HIRING PROCESS:

• HR interview
• Tech interview
• Offer

About Us
We are a fast-growing company in the AI Voice / performance-driven B2B space. We help businesses replace inefficient manual processes with scalable AI solutions that directly impact revenue.
Our product is already used by 20+ brands across 8+ GEOs, and we are scaling our sales engine aggressively.

Who We’re Looking For
We’re looking for ambitious and results-driven Senior Marketing Manager who will fully own marketing end-to-end. This is a single marketer role: website, buyer personas, customer journey, content, LinkedIn, SEO. You own execution and outcomes.

About You
You think in buyer personas, funnels, and revenue, not channels. You can turn strategy into concrete actions, pages, posts, and experiments. You are proactive, structured, and comfortable with fast-paced environment can self-organise and prioritize.

What Awaits You

• High-impact, senior-level ownership role
• Direct work with founders and CBDO
• Opportunity become a Head of Marketing
• No bureaucracy, fast iteration
• Clear priorities and performance expectations
• Opportunity to scale marketing from 0 → predictable inbound
• Resources to reach results
• Strong influence on sales pipeline and positioning

Responsibilities

• Own and execute end-to-end B2B marketing as a single marketer.
• Own and continuously improve the company website as a revenue and conversion asset.
• Implement in activities Buyer Personas, ICPs, and Customer Journeys.
• Align website, content, and channels to each stage of the buying journey.
• Build and manage founder-led LinkedIn personal branding.
• Own and grow the company LinkedIn presence.
• Execute SEO strategy hands-on with intent-based content.
• Support sales with demand, credibility, and objection-handling content.
• Track and report marketing impact on inbound, pipeline, and revenue.

Requirements

• 5+ years in B2B marketing (services, SaaS, or performance-driven businesses).
• Strong experience with Buyer Personas and Customer Journeys in practice.
• Proven ownership of a B2B website as a growth channel.
• Hands-on SEO experience (not just coordination).
• Strong written English (content, positioning, messaging).
• Proven experience managing founders’ personal social profiles (LinkedIn)
• Experience working closely with sales or founders.
• High level of autonomy and ownership

Nice to Have

• Experience in iGaming, AI, SaaS, or performance-based services.
• Experience with LinkedIn Ads or Google Ads.
• Basic CRO or conversion optimization background.

What we offer 
 

• Fully remote work format and flexible working hours.
• Competitive salary pegged to USD.
• 24 days of paid vacation (sick leave, national, religious, and company holidays).
• A friendly communication culture and transparent processes.
• Dynamic work environment.
• Opportunities for professional development and career growth.
• No micromanagement — just trust, ownership, and freedom to experiment.

About the Project
We are developing modern SoftPhone applications for Android, iOS, and a WebRTC client, designed as an extension of our core product PortaSwitch — a Class 4 & Class 5 SIP softswitch platform.
This role offers a unique opportunity to work closely with PortaSwitch, collaborate with an experienced engineering team, grow your expertise in VoIP telephony, and contribute to a live, actively evolving product.

Team Setup
You will join a team of 7 professionals:
 

• 1 Project Manager
• 1 Senior Developer Lead
• 3 Mobile Developers
• 1 Web Developer
• 1 Backend Developer

Key Responsibilities
 

• Design and develop the server-side backend of the WebTrit system
• Build scalable, high-performance solutions supporting real-time communication services

• Collaborate with mobile and web teams to deliver seamless product functionality

   

Required Skills & Experience

• Python (strong backend development experience)
• Solid knowledge of Phoenix and Ecto
• Strong knowledge / hands-on experience with WebRTC
• Experience with PostgreSQL
• Proven experience building backend services in production

Nice to Have

• Elixir (2+ years of commercial experience)

English Level
 

• Written English is sufficient for day-to-day communication

   

We offer:

• Professional development
• Highly skilled colleagues who are ready to share knowledge
• Performance review every six months
• Paid vacations, compensatory leaves and sick leave
• Work schedule up to you: standard “office” schedule (5 day 9 till 18.00 it is Kyiv time (UTC+2/+3 ) Or flexible schedule with 12-hour shifts every three days from 8 till 20.00 or from 20.00 till 8.00.
•  English classes with the experienced teachers

We are the creators of a new fintech era!
Our mission is to change this world by making blockchain accessible to everyone in everyday life. WhiteBIT is a global team of over 1,200 professionals united by one mission — to shape the new world order in the Web3 era. Each of our employees is fully engaged in this transformative journey.
We work on our blockchain platform, providing maximum transparency and security for more than 8 million users worldwide. Our breakthrough solutions, incredible speed of adaptation to market challenges, and technological superiority are the strengths that take us beyond ordinary companies. Our official partners include the National Football Team of Ukraine, FC Barcelona, Lifecell, FACEIT and VISA.

The future of Web3 starts with you: join us as a Software developer

Requirements:

— 4+ years of the commercial experience with Go (Golang)
— Clean code approach: SOLID, design patterns, best practices
— Experience writing unit tests (test strategy, mocking, coverage)
— Experience with relational & NoSQL databases (Redis, Elasticsearch)
— Understanding of CI/CD pipelines; Kubernetes is a plus
— Confident Git usage (branching strategies, code reviews)
— Strong experience with REST APIs, HTTP, OpenAPI / Swagger
— Knowledge of backend security: OWASP Top 10, JWT, OAuth2, Encryption & secure data handling
— Strong communication, problem-solving, and teamwork skills
— Proactive mindset and continuous learning attitude

Would be nice:
— Experience in fintech / crypto
— Understanding of trading systems and blockchain basics
— Knowledge of financial compliance
— Integrations with payment providers (Checkout, Zen, AnyMoney, Clear Junction)
— Experience with SEPA, Visa/Mastercard, antifraud systems
— Mobile payments (Apple Pay, Google Pay)

Responsibilities:
— Write clean, maintainable, well-documented code
— Ensure performance, scalability, and reliability of services
— Write and maintain unit and integration tests
— Conduct code reviews and provide constructive feedback
— Debug and resolve complex backend issues
— Improve and maintain existing codebases
— Collaborate closely with Frontend, QA, Product, and Design teams
— Participate in Agile processes (sprint planning, standups, retrospectives)
— Share knowledge and clearly communicate technical solutions

Immerse yourself in Crypto & Web3:
— Master cutting-edge technologies and become an expert in the most innovative industry.
Work with the Fintech of the Future:
— Develop your skills in digital finance and shape the global market.
Take Your Professionalism to the Next Level:
— Gain unique experience and be part of global transformations.
Drive Innovations:
— Influence the industry and contribute to groundbreaking solutions.
Join a Strong Team:
— Collaborate with top experts worldwide and grow alongside the best.
Work-Life Balance & Well-being:
— Modern equipment.
— Comfortable working conditions, and an inspiring environment to help you thrive.
— 24 calendar days of paid leave.
— Additional days off for national holidays.

Sigma Software provides high-quality services in software development, graphic design, testing, and support. Our solutions deliver value across diverse industries, including automotive, telecommunications, aviation, advertising, gaming, banking, real estate, healthcare, and others.

We are seeking a qualified Senior Business Analyst / Proxy Product Owner with extensive experience in data-driven projects of varying complexity, ideally with a strong background in Data Warehouse (DWH) development and BI reporting to join an internal company project.

In this role, you will play a key part in strengthening our Data Platform, enhancing data quality, and driving strategic initiatives through effective requirement gathering, in-depth problem analysis, and close collaboration with both internal and external stakeholders. This position combines classic business analysis with hands-on work involving data, dashboards, and analytical tools.
 

Responsibilities:

• Collaborate closely with stakeholders to gather, refine, and prioritize business requirements aligned with strategic objectives
• Work closely with product owners, development teams, QA engineers, and designers to ensure clear understanding and implementation of business requirements
• Analyze existing business processes and systems to identify areas for improvement and propose innovative solutions
• Create detailed documentation including process flows, user stories, and other artifacts to effectively communicate requirements and solution designs
• Critically evaluate information gathered from multiple sources, reconcile conflicts, decompose high-level information into details, abstract up from low-level information to a general understanding, and distinguish user requests from underlying real needs
• Develop and maintain BI dashboards and regular analytical reports using Apache Superset, and occasionally Power BI, Tableau
• Create report prototypes and analytical visualizations independently when needed
• Contribute to the automation, standardization, and optimization of reporting processes
• Conduct demo sessions for stakeholders and prepare user documentation to facilitate adoption of delivered solutions
   

Requirements:

• 4–5 years of professional experience as a Business Analyst
• Practical experience with BI tools (Superset, Power BI, preferably Tableau)
• Experience in building and presenting dashboards
• Strong understanding of iterative ways of working, especially Scrum
• Upper-Intermediate level of English
   

Will be a plus:

• Experience on data-intensive projects involving BI solutions, reporting, and data platform development
• Experience participating in the development of a Data Warehouse/SSA layer
• Experience building BI prototypes or POCs independently before involving developers
• Confident SQL skills
• Solid understanding of data modeling principles
   

Personal profile:

• A proactive mindset and the ability to dive deep into complex business problems
• Proven problem-solving and conflict resolution skills
• Strong results-oriented mindset
• Excellent communication skills, both written and verbal

Responsibilities:

‌

• Design, develop and optimize Large Language Models for various NLP tasks such as text generation, summarization, translation, and question-answering
• Conduct research and experiments to push the boundaries of LLM capabilities and performance
• Collaborate with cross-functional teams (engineering, product, research) to integrate LLMs into product offerings
• Develop tools, pipelines and infrastructure to streamline LLM training, deployment and monitoring
• Analyze and interpret model outputs, investigate errors/anomalies, and implement strategies to improve accuracy
• Stay current with the latest advancements in LLMs, NLP and machine learning research
• Communicate complex technical concepts to both technical and non-technical stakeholders

Requirements:

‌

• MS or PhD degree in Computer Science, Data Science, AI, or a related quantitative field
• 4+ years of hands-on experience developing and working with deep learning models, especially in NLP/LLMs
• Expert knowledge of Python, PyTorch, TensorFlow, and common deep learning libraries
• Strong understanding of language models, attention mechanisms, transformers, sequence-to-sequence modeling
• Experience training and fine-tuning large language models
• Proficiency in model deployment, optimization, scaling and serving
• Excellent problem-solving, analytical and quantitative abilities
• Strong communication skills to present technical information clearly
• Ability to work collaboratively in a team environment
• Fluency in Ukrainian and English

Preferred:

• Research experience in LLMs, NLP, machine learning
• Experience working with multi-modal data (text, image, audio)
• Knowledge of cloud platforms like AWS, GCP for model training
• Understanding of MLOps and production ML workflows
• Background in information retrieval, knowledge graphs, reasoning

Role Summary
You will play the role of a semantic architect behind our AI‑powered Knowledge Graph supporting flavor and beverage innovation. This role is responsible for designing ontologies, SHACL validation frameworks, and YARRRML mapping rules that enable structured, high‑quality, machine‑interpretable R&D knowledge. Working closely with flavor scientists, product developers, data engineers, and AI teams, the Ontologist will translate complex scientific concepts into formal knowledge models, maintain consistent terminology and synonyms across domains, and ensure that all R&D data can be integrated, reasoned over, and leveraged for advanced discovery and formulation insights. This position is central to accelerating innovation, improving knowledge reuse, and enabling next‑generation intelligent tools for the R&D organization.

Key Responsibilities

1.Ontology Design & Semantic Modeling
Work with business stakeholders to identify and maintain a set of competency questions that the ontology must support.
Design, extend, and maintain ontologies covering ingredients, flavors, sensory attributes, formulations, human trials, regulatory concepts, and experimental processes.
Perform conceptual modeling with domain experts and translate concepts into formal RDF/OWL semantics.
2. SHACL Constraint and Validation Framework
Develop and maintain SHACL shapes to enforce data quality, structural validity, consistency rules, and business constraints across the Knowledge Graph.
Collaborate with data engineers to validate incoming data streams using SHACL rules and produce validation reports.
3. YARRRML & Semantic Mapping Design
Design and maintain YARRRML mapping rules to transform heterogeneous R&D datasets into RDF/Knowledge Graph structures.
Work with data engineering teams to operationalize RML/YARRRML pipelines within ingestion workflows.
4. Knowledge Graph Integration & Reasoning
Collaborate with the development team to integrate ontologies into reasoning engines, entity extraction workflows, and semantic search pipelines.
Support entity alignment, relationship modeling, and enrichment algorithms that drive flavor discovery.
5. Synonym, Terminology & Vocabulary Management
Build and maintain synonym dictionaries, alternative labels, multilingual terms, and context-specific vocabulary used by flavorists and product developers.
Ensure synonym management is consistently reflected across ontologies, SHACL shapes, and mapping rules.
Facilitate terminology alignment workshops with subject matter experts.
6. Governance, Versioning & Documentation
Establish and maintain ontology governance including version control, documentation, and change-management workflows.
Maintain high-quality documentation, competency questions, term definitions, and modeling rationales.
Required Qualification

Proven experience with RDF, RDFS, OWL, and SPARQL.
Hands-on work with ontology editors (e.g., Protégé, TopBraid Composer).
Strong understanding of SHACL, RML/YARRRML, or equivalent mapping frameworks.
Experience in semantic modeling and conceptual data design.
Experience in food science, chemistry, sensory science, or CPG R&D domains.

Preferred Qualifications

Degree in Knowledge Engineering, Information Science, Semantic Technologies, Computational Linguistics, or related fields.
Knowledge of industry ontologies or semantic standards (e.g., SKOS, SAREF, DOLCE, IOF).
Familiarity with graph databases (e.g., Neo4j, GraphDB, Stardog) and knowledge-graph architectures.

About the company: United Tech is a global IT product company shaping the future of real-time social connection. With millions of users across North America, Europe, LATAM, and MENA, we build next-gen mobile and web apps for live-streaming and social networking. Our platforms enable connection at scale fast, interactive, and deeply engaging. The market is projected to exceed $206B by 2030, and we are already leading the evolution. Founded in Ukraine, scaling worldwide

In this role, you will: 

• Launch, optimize, and scale performance campaigns across DSP networks for the company’s mobile products
• Manage large ad budgets with a focus on efficiency and growth
• Build, analyze, and automate DSP traffic buying through APIs or internal tools
• Design and implement a structured testing framework: creatives, GEOs, segments, targeting, bidding strategies
• Collaborate closely with creative, product, and analytics teams to maximize impact
• Monitor and analyze key metrics such as CTR, IPM, CPA, CPI, ROMI LT0/LT7, and retention
• Prepare detailed performance reports with test outcomes, traffic analysis, and scaling insights
• Communicate with DSP account managers, resolving technical and billing issues when needed
• Initiate and validate new hypotheses to improve CPA and increase LTV
• Research new DSP partners and explore additional traffic sources
  
  It’s all about you
• 2+ years of hands-on experience in user acquisition within DSP / programmatic buying
• Practical experience with AppLovin, Moloco, Liftoff, Unity Ads, Mintegral, Smadex, or similar platforms
• Deep understanding of bid optimization, eCPM, pacing, bid shading, and frequency caps
• Strong knowledge of MMPs (AppsFlyer, Adjust)
• Understanding of SKAdNetwork, iOS privacy, and post-IDFA attribution principles
• Experience with Tableau or similar BI tools
• Proven ability to analyze creative and funnel performance through metrics such as CTR, IPM, retention, and LTV
• Experience building automation systems for bidding or creative testing
• English level: Upper-Intermediate+ (comfortable communication with partners and in written correspondence)
  
  What we offer
• Care and support: 
• 20 paid vacation days, 15 sick days, and 6 additional days off for family events
• Up to 10 additional days off for public holidays
• 100% medical insurance coverage
• Sports and equipment reimbursement
• Team building events, corporate gifts, and stylish merch
• Online yoga with an instructor certified by the Ukrainian Federation of Yoga
• Financial and legal support
• Position retention and support for those who join the Armed Forces of Ukraine
• Participation in social initiatives supporting Ukraine
   
• Comfortable working environment:
• Work from our Kyiv hub or remotely with a flexible schedule 
• Modern equipment or depreciation of your own tools
   
• Investment in your future:
• Collaborate with a highly-skilled team of Middle & Senior professionals, sharing practical cases and expertise in the social networking niche
• 70% of our heads and leads have grown into their roles here – so can you!
• Performance-oriented reviews and Individual Development Plans (IDPs)
• Reimbursement for professional courses and English classes
• Corporate library, book club, and knowledge-sharing events
   
• Hiring process
• Intro call
• Technical interview
• Test Task
• Final  interview
• Reference check
• Offer

Delasport is an iGaming Software company providing Sports Betting & Online Casino software, and turnkey B2B solutions. Established in 2010, Delasport delivers a one-stop-shop solution of Sports Betting and Online Casino from a White-Label, with a full range of management services to a Plug&Play iFrame and a complete Turnkey. We are establishing an R&D centre in Kyiv, and are looking for top talents to join our team.

As a Senior PHP Engineer, you will dive into the complex but rewarding world of Sports and Online gaming, integrations, real-time calculation, scrapping data, and reporting, all at a massive scale.

TECHNOLOGY STACK: PHP 8, Symfony 6, Node.js, API REST, MongoDB, MySQL, Kafka, Docker, Kubernetes

RESPONSIBILITIES

• Participate in the design and decision-making of technical solution implementation
• Troubleshoot, analyze, provide workarounds and resolve various software problems
• Mentor and train new team members

REQUIREMENTS

• 5+ years experience in web application development
• Advanced architecture understanding both on theoretical and practical levels
• Deep knowledge of PHP programming
• Working experience with the Symfony framework
• Knowledge of the entire web stack and how each part impacts performance and reliability
• Exhaustive knowledge of database design and implementation
• Design and business insight
• Commitment to quality, performance, continuous improvement, and efficiency
• Analytical mindset and good problem-solving skills
• Experience in taking ownership
• Upper-intermediate level of English

NICE TO HAVE

• Gaming and sports industry experience
• NodeJS, Redis
• Experience in web application security and performance tune-up
• ELK, Kibana

WHAT WE CAN OFFER YOU

• Modern office in Podil with an uninterruptible power supply and the Internet
• Personal time off (21 business days of paid vacation, paid days on special occasions, sick leaves, emergency days off)
• Public holidays
• Health and life insurance with our broker, available starting from the month following the employee’s start date with the company
• Modern technical equipment
• English courses with native speakers
• Ukraine-based educational programs
• Sports activities reimbursement
• Corporate entertainments
• Happy hours on Fridays
• Gig contract support

Delasport is an iGaming Software company providing Sports Betting & Online Casino software, and turnkey B2B solutions. Established in 2010, Delasport delivers a one-stop-shop solution of Sports Betting and Online Casino from a White-Label, with a full range of management services to a Plug&Play iFrame and a complete Turnkey. We are establishing an R&D centre in Kyiv, and are looking for top talents to join our team.

TECHNOLOGY STACK

Microservice architecture, Java 21, Spring Boot 3.4+, PostgreSQL, MongoDB, Kafka, Google Cloud Platform, Kubernetes

RESPONSIBILITIES

• Development of new business initiatives, an extension of existing ones
• Taking an active part in improvements and optimizations to the systems
• Resolve technical problems, critical thinking on the development approach
• Be part of a cross-functional team with end-to-end responsibility for the result

REQUIREMENTS

• 3+ years of commercial development experience using Java-related technologies
• 1+ years of working experience with API development
• Hands-on experience with microservice architecture
• Ambition to write high-quality code covered with unit tests
• Solid debugging and troubleshooting skills
• Proactive and result-oriented mindset
• Strong problem-solving skills
• At least Upper-Intermediate English level

WHAT WE CAN OFFER YOU

• Modern office in Podil with an uninterruptible power supply and the Internet
• Personal time off (21 business days of paid vacation, paid days on special occasions, sick leaves, emergency days off)
• Public holidays
• Health and life insurance with our broker, available starting from the month following the employee’s start date with the company
• Modern technical equipment
• English courses with native speakers
• Ukraine-based educational programs
• Sports activities reimbursement
• Corporate entertainments
• Happy hours on Fridays
• Gig contract support

We are looking for an QA Engineer (Manual + Automation) to join our team and help build and maintain modern education-focused digital products.

Requirements

• 3 years of QA experience (manual + automation)
• Hands-on Playwright + TypeScript experience; ability to write reliable automated tests
• Understanding of test automation patterns (POM or similar)
• Experience with CI/CD test execution
• Good Git knowledge (branches, PRs, basic code review); experience with Azure DevOps/GitHub/GitLab
• Basic familiarity with Angular or other modern front-end frameworks
• API testing experience; basic SQL and Linux command line knowledge
• Understanding of web technologies (HTTP, REST APIs, browser dev tools)
• English level B2 (Upper-Intermediate) or higher
  
  Responsibilities
• Perform manual testing (exploratory, regression), design test cases and checklists
• Analyze requirements, identify edge cases, investigate issues, and report defects clearly
• Develop and maintain automated tests in an existing framework (Playwright + TypeScript)
• Ensure tests are stable and maintainable (Page Object Model or similar patterns)
• Run and support automated tests in CI/CD pipelines; participate in Agile/Scrum ceremonies
• Test APIs using Postman (or similar) and validate data using basic SQL when needed
• Use AI tools to support QA and test automation tasks where applicable

Data Science UA is a service company with strong data science and AI expertise. Our journey began in 2016 with 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:
We are looking for a Python Software Engineer to join our team and help us build an on-premise software pipeline for real-time computer vision. The system ingests camera streams (primarily RTSP), stores frames in a shared data layer, runs CV/AI engines for preprocessing and inference, applies inference logic to produce decisions, and sends results to Database/Portal/Alerting/Control integrations.

Responsibilities:
- Build and maintain the Camera Module to reliably ingest RTSP streams, decode frames, and handle reconnect/keep-alive/packet loss.
- Implement the Shared Data layer for raw and processed frame exchange across processes with backpressure and safe lifecycle management.
- Integrate and operate CV/AI Engines in Python (preprocess, inference, postprocess) with configurable model loading and runtime selection.
- Develop the Inference Logic layer that orchestrates cropping, batching, filtering, classification, and decision output formatting.
- Implement connectors for Database & Portal (event persistence, evidence references) and for Alerting & Control (events/hooks for downstream automation).
- Ensure production readiness on Linux with observability (logs/metrics), health checks, and robust error handling.

Requirements:
Must-have:
- Strong Python, OOP, clean architecture, typing preferred.
- Solid experience with multiprocessing/concurrency (process lifecycle, IPC patterns, queues/shared memory).
- Comfortable working in Linux (systemd/service mindset, networking basics, profiling/debugging).
- Familiarity with CV/AI tooling, and some related Python libraries such as numpy, opencv (cv2), and torch or tensorflow.
- Ability to work with streaming data and reliability constraints (timeouts, retries, resource cleanup).
Should-have:
- Experience with RTSP/RTP streaming and common issues (UDP vs TCP interleaved, jitter, packet loss, camera timeouts).
- Performance optimization (profiling, memory management, zero-copy patterns).
- Exposure to inference acceleration stacks (TensorRT/OpenVINO) or GPU deployment.
- Experience designing event schemas and integration with DB/message queues.

We offer:
- Free English classes with a native speaker and external courses compensation;
- PE support by professional accountants;
- Medical insurance;
- Team-building events, conferences, meetups, and other activities;
- There are many other benefits you’ll find out at the interview.