Jobs at Djinni

Web Flutter Developer (Remote)

We are looking for a Web (Flutter) Developer to join the company's digital team and help support and evolve web platforms. 

What you’ll do:

• Build and maintain Flutter Web applications
• Work with Dart, async programming, and RESTful APIs / JSON
• Implement the BLoC pattern and follow MVVM / Clean Architecture principles
• Write clean, readable, and maintainable code
• Collaborate with the team and participate in code reviews

Requirements:

• Have at least 1 year of commercial experience with Flutter on web development. Experience with Dart.
• Understanding of asynchronous operations and HTTP requests
• Strong willingness to learn and grow professionally
• Team-oriented mindset
• It would be nice if you have a conversational English level, but it is not mandatory.

What company offers:

• Fully remote, work from anywhere
• Opportunity to grow into a Middle/Senior role
• Supportive team and mentorship

Who you are:

• Curious, proactive, and enjoy solving problems
• Detail-oriented and take pride in getting things right
• Communicate clearly and work well with different teams
• Motivated to build a strong foundation and grow as a web professional

Nice to have (but not required)

• Basic knowledge of PHP, HTML, CSS, JavaScript
• Exposure to CMS platforms, performance basics, or SEO fundamentals
• Interest in analytics and measurement tools (e.g. GA4)

Personal projects on Flutter (Web) to share (GitHub, portfolio, university projects).

We're looking for a QA Engineer to take ownership of quality assurance for critical backend systems in our iOS applications — from core API behavior to payment infrastructure and subscription flows.

We process subscription payments through web funnels (webview in iOS apps), so this role requires strong focus on payment systems, subscription logic, and integration reliability.

What you'll do

• Test backend APIs related to payments, subscriptions, and authentication
• Validate subscription lifecycle logic — rebilling, renewals, retries, cancellations
• Test integrations with payment systems (Stripe and similar)
• Verify webhook handling and event-driven payment workflows
• Design and execute test scenarios for critical business logic
• Perform regression testing before releases
• Test edge cases in payment flows
  (failed payments, duplicate charges, retries, cancellations)
• Analyze logs and debug backend behavior
• Collaborate closely with backend, frontend, and product teams
• When needed:
• Write automated tests (API / integration level))

Requirements

• 2+ years of commercial QA experience
• Experience testing backend systems and APIs
• Understanding of REST API testing
  (Postman, Swagger, or similar tools)
• Experience testing payment systems or financial workflows
• Understanding of subscription logic
  (subscriptions, renewals, retries, cancellations)
• Experience working with webhooks
• Ability to write clear test cases and bug reports
• Ability to analyze logs and identify root causes
• Understanding of client-server architecture
• Additional experience that will be a strong advantage:

Nice to have

Test automation experience (JavaScript / Python / Java)
Experience testing high-load systems
Experience with message queues or event-driven systems
Experience with CI/CD pipelines

We're NOT looking for

• QA engineers who only test UI
• Candidates without API testing experience
• Candidates without experience testing payment or financial logic
• People who cannot analyze root causes of failures
• Candidates without experience working with webhooks or async workflows

What we offer

• Work on a real product with direct impact on revenue
• Ownership of backend and payment systems
• Remote work and flexible schedule
• Fast product iterations without unnecessary bureaucracy
• Strong product team and engineering culture

CrunchCode — міжнародна сервісна ІТ-компанія з досвідом близько 7 років у розробці вебсервісів і вебзастосунків. Ми працюємо у форматах staff augmentation (outstaff) та outsourcing і підключаємо спеціалістів до проєктів клієнтів у довгостроковій моделі співпраці.

Ми працюємо переважно з проєктами в доменах логістики (включно з last mile),e-commerce, fintech та банкінгу, а також enterprise-рішеннями.
Для нас важливо, щоб проєкт був “чистим” і зрозумілим з точки зору етики та цінності для користувачів.

Ми принципово не беремо проєкти, пов’язані з:
● gamblng / гемблінгом,
● adult-контентом та порнографією,
● шахрайством або будь-якою розробкою, що спрямована на обман чи маніпуляції.

What We Offer:
● Fully remote work
● Long-term, stable project
● High level of autonomy and trust
● Minimal bureaucracy
● Direct impact on business-critical logistics systems
● Long-term engagement, not a short-term contract.

Project Overview
Enterprise-grade data engineering role within a Pan-Baltic banking environment. The engineer will work on large-scale data platforms, building and maintaining production-ready pipelines and modern data lakehouse architectures across the organization.

Tech Stack
Python, Apache Spark, AWS (EMR, Glue, Athena, S3), SQL, Data Lakehouse, ETL/ELT

Requirements (Must-have):
- Strong hands-on enterprise data engineering experience
- Advanced SQL skills and solid understanding of analytical and dimensional data modeling
- Proven experience with Data Lakehouse / modern data platform concepts (cloud object storage, open table formats, distributed processing)
- Strong hands-on experience with AWS data services: EMR, Glue, Athena, S3-based data lakes
- Strong hands-on experience with Apache Spark for large-scale data processing
- Strong Python skills for ETL development, data processing, and automation
- Very strong analytical, problem-solving, and system-level thinking skills
- Fluent English B2+ — required for Pan-Baltic communication (spoken and written)

Responsibilities:
- Design, implement, and maintain robust production data pipelines
- Build and optimize Data Lakehouse and modern data platform solutions
- Work with AWS data services across the full data engineering stack
- Process large-scale data using Apache Spark
- Develop ETL workflows and automation scripts in Python
- Apply advanced SQL and dimensional/analytical data modeling
- Contribute to system-level thinking and data architecture decisions

Nice to Have:
- Experience in banking or financial services
- Familiarity with data governance and compliance practices

Hiring Process:
Intro call
Technical discussion
Offer
Start: ASAP

Project Description

We are a global audience and location intelligence company that helps marketers connect the digital and physical world. We provide data-driven solutions to enhance marketing campaigns by leveraging location and audience data to reveal consumer behavior and enable more precise targeting and measurement. We work on high-end / high-performance / high-throughput systems for in-time analysis of data for autonomous driving and other big data applications e.g. for E-commerce.

Job Responsibilities

Work in a self-organised agile team with a high level of autonomy, and you will actively shape your team's culture.

Design, build, and standardise privacy-first big data architectures, large-scale data pipelines, and advanced analytics solutions in AWS.

Develop complex integrations with third-party partners, transferring terabytes of data.

Align with other Data experts on data (analytics) engineering best practices and standards, and introduce those standards and data engineering expertise to the team in order to enhance existing data pipelines and build new ones.

Successfully partner up with the Product team to constantly develop further and improve our platform features.

Requirements:

• 4+ years in a Data Engineering or similar high-scale role.
• Expert-level Python skills. Familiarity with Java or Scala is a major plus.
• Proven hands-on experience building scalable solutions directly within AWS.
• Deep proficiency in high-throughput architectures using Kafka, Spark, Hadoop, MongoDB, AWS Batch, AWS Glue, Athena, Airflow, and dbt.
• Exceptional SQL and data transformation skills, with an eye for optimizing NoSQL and SQL databases.
• Ability to simplify complex technical concepts and a passion for mentoring junior engineers in a collaborative environment.

CrunchCode — міжнародна сервісна ІТ-компанія з досвідом близько 7 років у розробці вебсервісів і вебзастосунків. Ми працюємо у форматах staff augmentation (outstaff) та outsourcing і підключаємо спеціалістів до проєктів клієнтів у довгостроковій моделі співпраці.

Ми працюємо переважно з проєктами в доменах логістики (включно з last mile),e-commerce, fintech та банкінгу, а також enterprise-рішеннями.
Для нас важливо, щоб проєкт був “чистим” і зрозумілим з точки зору етики та цінності для користувачів.

Ми принципово не беремо проєкти, пов’язані з:
● gambling / гемблінгом,
● adult-контентом та порнографією,
● шахрайством або будь-якою розробкою, що спрямована на обман чи маніпуляції.

What We Offer:
● Fully remote work
● Long-term, stable project
● High level of autonomy and trust
● Minimal bureaucracy
● Direct impact on business-critical logistics systems
● Long-term engagement, not a short-term contract.

Project Overview
Enterprise backend engineering role within a Pan-Baltic banking environment. The engineer will build and maintain cloud-native backend services on AWS, working to high standards of code quality, system reliability, and operational stability across the organization.

Tech Stack
Java 17/21, Spring Boot, REST APIs, AWS (Lambda, API Gateway, CloudWatch), CI/CD

Requirements (Must-have)
- 7+ years of practical Spring Boot development experience
- Fluent English B2+ — required for Pan-Baltic communication (spoken and written)
- Strong hands-on experience with Java 17+ / Java 21 including modern language features
- Strong experience with RESTful API design, implementation, and integration
- Proven application of clean code principles and automated testing
- Strong understanding of SOLID, KISS, YAGNI design principles
- Experience with cloud-based and distributed systems, AWS in particular
- Hands-on experience with AWS: Lambda (Java runtime), API Gateway, CloudWatch
- Strong CI/CD practices and monitoring/operational stability techniques

Responsibilities:
- Build and maintain backend services using Spring Boot
- Design and implement RESTful APIs and integrations
- Work with AWS serverless and cloud infrastructure (Lambda, API Gateway, CloudWatch)
- Apply clean code principles and write maintainable, well-tested code
- Implement and support CI/CD pipelines and monitoring practices
- Ensure operational stability and system reliability in a distributed environment
- Apply SOLID, KISS, and YAGNI principles across the codebase

Nice to Have:
- Experience in banking or financial services domain
- Familiarity with compliance and security standards in enterprise environments

Hiring Process:
- Intro call
- Technical discussion
- Offer
Start: ASAP

Payment Monitoring Manager (Junior / Trainee)

We are looking for a detail-oriented and responsible Payment Monitoring Manager (Junior / Trainee) to join our team and support day-to-day payment operations.

This role is a great entry point into iGaming operations, fintech, and risk monitoring — perfect for someone who is attentive, structured, and ready to learn.

Responsibilities:

• Monitor incoming and outgoing payments in real time
• Track payment statuses and ensure smooth processing
• Identify and flag suspicious or unusual transactions
• Work with payment providers and internal teams to resolve issues
• Support risk & fraud checks based on internal guidelines
• Maintain accurate records and reports of payment activities

• Escalate critical issues to the Team Lead in a timely manner

   

Requirements:

• Strong attention to detail and analytical thinking
• Ability to work with large volumes of data
• Responsible, structured, and fast learner
• Basic understanding of online payments / fintech is a plus
• Experience in iGaming / payments / support is a plus, but not required

We offer:

• Opportunity to start a career in iGaming & fintech
• Hands-on experience with payment systems and fraud monitoring

• Supportive team and structured onboarding

   

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

About the client:
Our client began its operations in 1996, originally manufacturing metal and glass architectural structures. Today, the company is a high-tech manufacturing complex that designs and produces turnstiles, road blockers, bollards, fireproof doors, gates, and hatches. The company has international offices in Kyiv, London, and Dubai, with 23 official brand representatives worldwide and a portfolio of 30,000+ completed projects across more than 100 countries.

About the role:
We are looking for a Lead Marketing Specialist to provide strategic leadership for the marketing team and processes, aimed at strengthening brand awareness globally. The primary focus is on building end-to-end analytics, implementing a unified communication strategy, and scaling client acquisition channels.

Requirements:
- 3+ years of experience in a marketing leadership role.
- Strong leadership skills and the ability to communicate effectively with a team.
- Hands-on experience in B2B markets with a deep understanding of client acquisition and retention tools.
- Proven track record in building and managing high-performing teams.
- Experience with digital tools (performance marketing, CRM, automation).
- Solid understanding of branding, positioning, and product management.
- Proactive, responsible, and result-oriented mindset.
- English proficiency at B1+ level or higher.

Key Responsibilities:
- Managing the marketing team and external contractors.
- Developing and implementing the company's overall marketing strategy.
- Team building, goal setting, and marketing performance management.
- Overseeing and managing operational marketing processes.
- Analyzing the market, competitors, and user behavior.
- Maintaining current communication channels and developing new ones.
- Boosting brand awareness in the international market.
- Preparing for participation in international exhibitions and industry events.
- Supporting and optimizing company websites.
- Maintaining a unified communication strategy (PR, Content, SMM, Websites).
- Establishing a KPI system and end-to-end analytics to evaluate marketing effectiveness.

What the client offers:
- Timely salary payments (twice a month).
- Official employment in accordance with Ukrainian legislation.
- Free shuttle service from Kharkivska metro station (Location: Bortnychi district, Kyiv).
- Access to a free gym.
- On-site meals at corporate rates (partially subsidized by the company)

We’re growing fast and looking for a DevOps Engineer to join our team and help us build reliable, scalable, and high-performance infrastructure.

🔧 What you’ll do:

• Build and support scalable, highly available systems
• Automate and improve CI/CD and release processes
• Work with AWS, EKS, Terraform, GitLab, Kafka, SQS
• Optimize infrastructure performance and costs
• Monitor systems and perform root cause analysis
• Collaborate closely with engineering teams
• Strengthen security and system reliability

🧠 What we’re looking for:

• 3+ years of DevOps experience
• Strong experience with AWS + Kubernetes (EKS)
• Hands-on with Terraform, Ansible, GitLab CI/CD
• Experience with monitoring & logging (Grafana, EFK, VictoriaMetrics)
• Understanding of networking (TCP/IP, routing)
• Experience building HA, fault-tolerant systems
• Strong problem-solving and communication skills

🤖 Bonus:

• Experience using AI tools to improve DevOps workflows
• Interest in automation and AI-driven engineering practices

🎁 We offer:

• Fully remote work & flexible schedule
• Paid vacation & sick leave
• No micromanagement — focus on results
• Modern stack & interesting challenges
• Team knowledge sharing & training sessions
• Equipment provided

Darly Solutions is an international IT company specializing in delivering innovative solutions across FinTech, MedTech, SaaS, and other domains. With years of experience in web and mobile development, UI/UX design, Quality Assurance, AI, and machine learning, we pride ourselves on creating impactful products that drive success for our clients. Since 2018, we have successfully completed over 250 projects.

We are looking for a FlutterFlow Developer to join our client's team on a part-time basis. You will work closely with product and technical teams to build and maintain a high-quality, production-ready AI-powered application with strong UI/UX and reliable backend integrations.

Requirements:

• Proven experience building and launching multiple FlutterFlow applications
• Strong UI/UX execution and attention to detail
• Experience integrating REST APIs and handling app states (loading, error, empty)
• Ability to work with custom code within FlutterFlow when needed
• Experience using AI tools in development workflows
• Strong communication and organization skills
• Ability to start immediately

Responsibilities:

• Build and maintain FlutterFlow applications with clean UI and strong UX
• Implement responsive, polished interfaces with attention to detail
• Integrate APIs (authentication, data handling, error states)
• Support state management, performance optimization, and reliability
• Collaborate with product and technical teams to deliver features end-to-end
• Use AI tools to improve development speed and workflow efficiency

It will be a plus:

• Experience with dynamic or schema-driven UI systems
• Familiarity with AI-powered applications (chat, voice, automation)
• Basic backend debugging or data handling experience

Full-time | Remote

We are looking for a German-speaking Customer Success / Technical Support Specialist to join our growing team at ExpoPlatform.

You’ll work with international clients using our SaaS event platform, helping them set up and run online events, resolve technical questions, and ensure smooth delivery.

This is a hands-on role where you’ll combine customer communication + technical understanding + problem-solving.

Role Overview

• Collaborate with global customers to set up customized online events, community platforms, and mobile apps
• Complete comprehensive platform training during the first 2 months under the guidance of a senior Technical Account Manager
• Take full ownership of projects after onboarding, managing the end-to-end lifecycle (implementation → post-event analysis)
• Act as an extension of the customer’s team, supporting delivery, problem-solving, and best practice sharing
• Conduct post-event analysis with insights, learnings, and recommendations for future improvements
• Serve as the main day-to-day contact for customers, ensuring smooth communication and coordination with internal teams
• Work in a fast-paced environment with global clients and large-scale events

Job Responsibilities

• Elicit, document, and communicate customer requirements internally
• Design optimal platform setups aligned with customer goals
• Educate customers on platform features and guide solution selection
• Deliver platform training sessions for customer teams and stakeholders
• Manage project timelines and ensure milestone delivery
• Lead weekly project calls and maintain clear accountability on next steps
• Identify opportunities to expand platform usage and increase customer value
• Ensure customers achieve defined goals and KPIs through proactive support
• Provide real-time support during live events (including occasional onsite presence)
• Contribute to knowledge base content (help articles, guides, training materials)

Job Requirements

• 1+ years in Customer Success, Account Management, or similar role, ideally within a SaaS company.
• Technical background with the ability to translate business needs into technical tasks
• Bachelor’s degree (technical certifications or Master’s is a plus)
• Excellent English and German communication skills, both written and spoken (additional languages are a plus)
• Strong interpersonal and customer service skills
• Ability to stay calm under pressure, especially during live events
• Strong project management and prioritization skills
• Detail-oriented and able to manage multiple projects simultaneously
• Team player with a collaborative mindset
• Willingness to work flexible event hours and travel when needed
• Proficiency in Excel and PowerPoint
• Comfortable in fast-paced startup environments
• Basic programming knowledge (PHP, Java, C#, HTML) is a plus

What We Offer

• Competitive salary with stability in a growing international company
• Semi-flexible working hours (Mon–Fri, 8 hours/day)
• Annual leave, public holidays, and paid sick days
• Equipment provided after probation
• A team where your work is visible and your input shapes how things are done.

He there! We're looking for a strong backend / fullstack developer.

In our projects we are using the following stack:

• PHP
• JavaScript
• MySql
• Solr
• ElasticSearch
• RestFull API
• Vue
• Git

We welcome experience in API development, experience with mapping services (Roads API, Routes, etc.), and integration of payment services.

If you don't have experience in something, don't worry—the main thing is to have a solid foundation and a desire to learn everything.

We work on large projects, both our own and our clients', and often use our own framework, which uses PHP on the backend. That's why we need a strong mid-level developer for long-term cooperation.

We are considering remote full-time work, and in some cases, we may consider stable part-time work.

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.

We are looking for an enthusiastic and proactive Intern .NET + Angular Developer to join our dynamic team!

Requirements:
— Solid understanding of object-oriented programming (OOP);
— Good knowledge of C#, .Net Standard, .NET 6+, ASP Web API;
— Basic knowledge of Unit testing;
— Basic knowledge of MSSQL;
— Knowledge of Angular(React) + TypeScript;
— Upper-Intermediate English level (both written and spoken);
— Proficiency with Source Control tools such as Git.

Would be a plus:
— Basic understanding of GoF Design Patterns;
— Understanding of microservice architecture;
— Containerization (basics of Docker/Kubernetes) + Azure;
— Attention to details;
— Practice experience in pet projects.

Responsibilities:
— Develop project functionalities;
— Manage databases with MS SQL;
— Implement frontend features with Angular.

We offer:
— 3-month 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;
— Participation in internal and external events.
Upon successful completion of the internship and mutual agreement to proceed with a contract, the candidate is expected to commit to working with us for a minimum of one year.

😎 Junior Sales Manager (IT Outstaffing) — Upwork Ninja Who Closes, Not “Just Chats”
Remote
We’re looking for a Junior Sales Manager with real Upwork battle scars — someone who knows how to turn “Just checking options” into signed deals.
Your mission
Catch Upwork leads fast (speed wins deals ⚡)
Run discovery calls & clarify messy requests
Close staffing deals end-to-end (yes, including money talks)
Work closely with recruiters & keep CRM tidy
You are
Proven Upwork communicator (mandatory)
1+ year in IT sales / outstaffing
Fluent in English
Not afraid of negotiation
RU or UA — nice bonus
What you get
Base + performance bonus 💰
Flexible schedule (sometimes night calls — clients don’t sleep)
Strong team, real deals, no micromanagement

 

Key requirements

• Upwork experience (mandatory)  real client communication
• 1+ year in IT sales (outstaffing / outsourcing)
• Experience progressing & closing deals
• Fluent English
• Flexible schedule
• Russian or Ukrainian (optional)

What you’ll do

• Own leads from Upwork and other sources, respond fast
• Run discovery calls & clarify staffing needs
• Qualify roles, seniority, skills, timelines, engagement model
• Work with recruiting team & candidate pool
• Drive deals: calls, follow-ups, negotiation, close
• Keep CRM (HubSpot) clean and up to date
• Prepare client materials (Google Docs/Sheets)
• Use AI tools (ChatGPT, meeting notes) daily

Must-have

• Hands-on Upwork sales experience
• Confident in negotiations & pricing
• Strong communication & relationship skills
• CRM discipline
• Google Docs/Sheets confidence

Not for you if

• No Upwork experience
• Avoid negotiations or talking about money
• Prefer slow sales cycles
• Dislike CRM discipline

Schedule

• Flexible hours
• Availability for occasional late/weekend calls (client timezones)

About us

Codemotion  IT services company (100+ people), part of Index.dev group
Outstaffing & outsourcing with strong recruiting capacity

What we offer

• Flexible schedule
• Support from Sales, Recruiting & Pre-sales
• International clients, daily English
• Compensation: base + performance bonus