Jobs at Djinni

Primary requirements:

· Higher (or incomplete higher) technical education;

· Experience in programming for Android from 2 years;

· Excellent knowledge of Kotlin, Android SDK

· Experience with:

- multithreading in Java

- Kotlin;

- Android architectural components

- Firebase;

- RXJava2;

- understanding of REST;

- understanding of OOP principles

· Knowledge of Googel approaches;

· Confident use of GIT, collaboration systems;

· Availability of applications posted on Google Play;

· Solid understanding of client-server application architecture;

· Knowledge of English at a minimum technical level, preferably spoken and written at an above-intermediate level.

Main responsibilities:

· Writing code according to technical specifications;

· Development of systems from scratch and mobile versions of company products;

· Interaction with the development team;

Working conditions:

· Bid;

· Working hours are flexible, Mon-Fri, from 9 to 18 or from 11 to 20

· Stable job in a successful IT company;

· Remote work;

Senior Python / AI Engineer

Role Overview

We are looking for a Senior Python/AI Engineer with strong experience in machine learning, data engineering, cloud-based architectures, and AI agent pipelines.

You will work directly with the system architect to design and build:

• AI-powered data pipelines,
• prediction and scoring models,
• market-resolution oracles,
• agentic processing pipelines (AWS Bedrock / LangChain / custom),
• high-performance AWS-backed microservices and event-driven workflows.

This role is suited for a self-driven engineer who can operate in a fast-moving architecture.

Key Responsibilities

AI / ML

• Develop and train ML models for market signals, behavioral patterns, user risk segmentation, anomaly detection.
• Implement embedding pipelines, vector search and semantic analysis using:
  AWS Bedrock (Titan, Claude), SageMaker, LangChain, FAISS, OpenSearch, or local pipelines.
• Build LLM-based agents using LangGraph, LangChain, AWS Bedrock Agents, or custom orchestration.
• Work with HuggingFace, PyTorch, scikit-learn, Transformers, Nomic embeddings, etc.

Python Engineering

• Design clean, modular services for data collection, processing, analytics and agentic workflows.
• Build real-time pipelines using:
  asyncio, WebSockets, FastAPI, Redis Streams, Kafka, Celery, Apache Beam (optional).
• Implement microservices interacting with internal APIs, AWS services and data layers.
• Write production-quality Python (3.10+) with Pydantic, SQLAlchemy, Poetry/pipenv, type checking (mypy), and tests (pytest).

Data Engineering

• Create ETL/ELT pipelines aggregating both on-chain and off-chain datasets using:
  AWS Glue, AWS Lambda, Step Functions, Athena, S3, DynamoDB Streams, Kinesis.
• Optimize storage and data access: PostgreSQL, DynamoDB, Redis, S3, OpenSearch.
• Implement observability and monitoring: CloudWatch Logs, Metrics, X-Ray, OpenTelemetry.

DevOps / Cloud (nice to have)

• Experience with AWS:
  • Lambda (Python runtime)
  • ECS Fargate
  • Bedrock (LLMs, embeddings, agents)
  • SageMaker (model training & deployment)
  • SQS, SNS, EventBridge
  • API Gateway
  • OpenSearch
  • Neptune (graph DB)
  • KMS, IAM best practices
• Build and monitor ML services in production using:
  SageMaker endpoints, CI/CD, Docker, Terraform, GitLab CI.

Requirements

Must-Have

• 5+ years of Python engineering experience.
• Strong background in AI/ML, especially NLP and agent-based architectures.
• Experience with LLMs, embeddings, RAG, and vector DBs (FAISS, OpenSearch, Pinecone).
• Strong understanding of async Python and distributed systems.
• Experience with data pipelines (ETL/ELT), real-time event-driven processing.
• Ability to work independently and architect solutions end-to-end.
• Familiarity with AWS cloud services (at least S3, Lambda, API Gateway, CloudWatch).

Nice-to-Have

• Experience with blockchain (EVM, Polygon, oracles).
• Experience with AWS SageMaker training pipelines.
• Understanding of smart-contract-driven workflows.
• Experience with graph analytics: Neo4j, AWS Neptune, RDF/Gremlin.
• Basic Solidity understanding.
• Experience with agent frameworks such as LangGraph.

Understanding that there is an approach, technologies, levels, process, components;

Defects: types and life cycle of defects;

Test types. Organization of tests;

Testing of complex software solutions and complex systems;

Requirements, an introduction to bug tracking systems;

QA process: initialization, goals, priorities, timing, risks.

Requirements:

Linux (3+years)

Docker containers, create docker images (3+years)

Kubernetes, — necessarily (2+years)

Production experience with at least one: GCP, AWS, AZURE, DO (3+years) Ansible, Terraform (3+years)

Nginx, Istio, Traefik

GitLabCI, CircleCI

MySQL, PostgreSQL, MongoDB

Prometheus/Loki/Grafana

Understanding of HTTP, DNS, SSL protocols

Quick learning abilities

Solve difficult tasks in a short time

English upper-intermediate оr higher

Responsibilities:

Containerization, migration, automation of web applications

Support and deployment of applications and servers, infrastructure troubleshooting

Creating documentation for teamwork

Ensuring the operability of all systems, testing and upgrades

Search and management of new technologies for optimal performance

What we provide:

Part-time

Fully remote 

Flexible working hours

Adequate leadership

We are looking for a Java Software Engineer with strong technical skills. You'll join a team of professionals to work on IoT/Big Data projects.

You will be working with:
- Modern Java (most of our projects are Java 17, we don't use anything lower Java 11)
- Modern approaches (we use microservice-based and monolith architecture where appropriate)
- A team of experts like you
- IDEs of your choice

Responsibilities:
- Design and implement components of large software systems
- Design and implement REST APIs to be consumed by the frontend, mobile, and edge computing devices.
- Writing unit and integration tests
- Performing code reviews

Requirements:
- Good spoken and written English
- Knowledge of data structures and algorithms
- Strong knowledge of Java 8 +
- Knowledge of the Spring infrastructure (IoC, Data, Web, AOP)
- Familiarity with modern design patterns
- Experience with Spring Boot
- Experience with AWS(Amazon Web Services) will be a plus
- Knowledge of SQL
- Experience with Maven or Gradle
- Experience with Git
- Basic knowledge of Linux/Unix

Benefits:
- Proper compensation
- Coverage of paid certifications
- Remote
- 20 days vacation
- 24 days sick-leave

We DON'T have:
1. Corporate bullshit
2. Bureaucracy
3. HRs, People Partners, Happiness Managers, Wellbeing Coaches (see point 1.)
4. Java 7
5. <Ask me during the interview about this, you are going to like it>

About the interview process ( a.k.a. a bonus for those who can read so much text):

1. Brief introductory call

2. Deep technical interview, the interview consists of two rounds, one hour each

Topics we usually cover:

- Data structures and algorithms basics. You won't be sorting anything, at least at this stage

- Network protocols basics (application, and transport levels)

- Data encryption basics (encryption, approaches, digital signatures, popular algorithms)

- Java (language basics, concurrency, streams, features from recent releases)

- English (you will have to answer some of the questions in English, so we understand you can communicate with English-speaking colleagues if needed)

- Databases (SQL basics)

- Working in a team (version control, peer reviews)

- Your past experience

About AgileVision.io
We are creating SaaS(software-as-a-service) from scratch for our clients. Usually, it's a B2B(business-to-business) for logistics and manufacturing. This means we deal a lot with IoT, edge computing, and ML. Our main backend language is Java.

AgileVision.io is an official AWS Partner and we build most of our solutions on AWS.

We invite you to share responsibility for the quality of growing information system used by hundreds of businesses in US and other countries.

You will be working to identify opportunities for improved software development and quality assurance processes. You will have to understand and analyze business requirements and write manual and automation test cases. You will be working closely with the Development and Product teams to achieve the highest levels of application quality.

Requirements:

∙ Proven 2+ year of experience as a Software Tester for web based products

∙ Strong computer background, analytical skills, attention to details

∙ Ability to learn and grow professionally

∙ Good English skills both written and verbal

∙ Hands on experience in manual and automated testing

∙ Some SQL knowledge

∙ Basic knowledge of automated testing tools (i.e. Selenium WebDriver)

Desirable Experience:

∙ Bug-tracking applications

∙ Agile methodologies

∙ C#

∙ PowerShell

∙ iOS apps testing experience

∙ REST, SOAP testing experience

∙ Performance testing experience

We offer:

∙ Interesting and challenging work with an established mature professional team that works with the same company for 10+ years

∙ Friendly environment, close informal collaboration with company management and product team

∙ Exciting projects involving newest technologies

∙ Professional development opportunities

∙ Excellent compensation and benefits package

∙ Modern and convenient office facilities

We are looking for a talented React Developer to join our team and develop innovative projects using JavaScript, React, HTML5, CSS3.

Ideally, you need to have a passion for programming, great soft and English skills.

It is a full-time position in Lviv.

Requirements:

▪️ More than 6 months of commercial experience in developing

▪️ Solid understanding of React

▪️ Strong JavaScript skills, JQuery, AJAX

▪️ Knowledge of HTML5 and CSS3

▪️ At least intermediate English level (written, spoken)

▪️ Desire to work and study new technologies, approaches and best practices

▪️ Attentive to details

Will be a plus:

▪️ Experience with GIT/svn, REST, Social Network API’s

▪️ Bachelor’s degree in Computer Science or an equivalent

Responsibilities:

▪️ Develop a web application with React, ES6, Webpack etc.

▪️ Write clean, maintainable, and efficient code

▪️ Implement front-end functionality according to requirements

▪️ Staying current on new technologies and best practices

▪️ Communicate with the customer and team members

We offer:

▪️ Flexible working schedule

▪️ 18 days of paid vacation

▪️ Comprehensive compensation packages for educational and sports pursuits

▪️ Internal knowledge-sharing talks

▪️ Access to the corporate bookshelf

▪️ Comfortable and cozy office in close proximity to the city center

▪️ Engaging team events and activities

We are looking for a team player!

Are you interested? We would be glad to receive your CV.

We are looking for C# developer for our music software

( work in Lviv or Kyiv,

remote work possibility ):

www.MusConv.com

About the project:

MusConv is b2c music software which helps people synchronize their music between music services: Spotify, Apple Music, YouTube Music, Amazon Music, Tidal and others.

We offer:

Challenging interesting project

Professional growth and development program

Flexible schedule

Team of highly talented individuals

Access to developer courses like https://www.pluralsight.com

Mentor: code reviews, studying( fiddler, postman, asynchronous programming, etc.)

5% of sources is simple gui based on xaml( avalonia similar to wpf )

95% of sources is regular .net standard( backend to interact with different music services )

We are looking for C# developer to implement new features

Iterasec works with clients worldwide, helping them find vulnerabilities and secure their products. Our projects range from mobile/web applications to complex modern cloud and automotive stacks. We work with both small product companies as well as Fortune 500 enterprises.

We are looking for a talented and motivated Junior Pentester who will join our security team to work on penetration testing and vulnerability/cloud security assessment projects.

We expect a short motivation letter where you can explain your skills, achievements and motivation.

Required skills

- Solid non-commercial cybersecurity experience, such as HTB/THM

- Junior-level cybersecurity certifications would be a plus.

- Comfortable with basic application security testing and common vulnerabilities (like OWASP Top 10, CWE Top 25) and cybersecurity fundamentals

- Strong basic IT skills: Linux, networking (TCP/IP, DNS, HTTP etc.)

- Some experience in scripting/coding languages, such as Java, JS, Python, Shell, etc.

- Strong drive to learn and develop cybersecurity skills

- Technical English (Intermediate)

We offer

- Good salary + bonus system

- Rewarding environment: brilliant team ready to share knowledge and collaborate

- Support in obtaining professional certifications, such as BSCP, OSCP, eWPTX, cloud certifications, etc.

- Courses and conferences which are relevant to the position are sponsored by the company.

- We are a remote-first company with full WFH support and a flexible work schedule.

Responsibilities

- Execute penetration tests and security assessments as part of a team, including internal/external networks, web and mobile applications, Windows and Linux environments, cloud architectures, IoT devices, and more

- Create assessment documentation and reports, clearly identifying vulnerabilities and associated remediation steps

- Conduct security research

Our company RemSoft.Dev has opened vacancies for the position of Full Stack Middle .Net Developer for interesting projects. You’ll work with an experienced team and new technologies - .NET Core and .NET 5

What do we offer, you may ask.

1. Remote cooperation. Work where and how you feel comfortable

2. Competitive monthly payments for your work according to your skills and career opportunities

3. Full (7-9 hours a day) or partial (4-5 hours a day) employment

4. Projects on .NET Core, F#, Blazor, TypeScript, Angular, Azure and other latest technologies that are nice to work with

5. A friendly team that will be able to help and advice in case of difficulties.

6. Loyal and honest leadership

What we are looking in our candidates:

1. 2+ years of experience with .NET/C#

2. 1+ years of experience with JavaScript

3. Excellent knowledge of OOP

4. Experience and understanding of Git and GitHub

5. Critical thinking

6. Willing to learn and gain new skills

7. English - B1+

About US

Headquartered in New York City, USA, B2B Soft is an established leader in the development, implementation, and support of retail management systems (RMS) designed for the wireless retail industry. With over 10 years in business, we have built a best-in-class point of sale (POS) solution recognized by major telecom operators and serving customers across North America.

As a true product organization, we work seamlessly with clients to ensure that the evolution of the platform is always in sync with their business needs, with a solid infrastructure behind it. Recent addition of the autonomous product suite well coincides with the post COVID-19 reality and enables telecom operators to conduct all aspects of their commerce via kiosks.

A client’s success is our priority. Innovation is our tool. We care about customers by going above and beyond in intellect and effort. We are honest and curious. And we are agile, applying our knowledge and skills to best serve our clients and partners. Here, you will work with advanced products, be part of open and transparent culture, learn both IT and business and advance quickly.

Summary:

As a Customer Support Specialist, you will have an opportunity to join a very dynamic team and become a trusted advisor to our clients, with an opportunity to contribute to the overall quality of our product by sharing feedback with the relevant stakeholders. You will interact with US busines owners, learn about the telecom industry and embark on an IT career path within the organization.

Key Responsibilities:

• Help existing and prospective customers by providing timely and accurate information about B2BSoft products

• Identify, analyze, and troubleshoot technical issues and provide effective solutions

• Respond to support queries via phone, chat, and email

• Help Customers with software and hardware configurations, billing, and merchant services related requests

• Provide clear and complete documentation and notes on all service inquiries

Our requirements:

• Fluent/advanced English (MUST!)

• Spanish is a huge +

• Ability to work night shifts (6 shifts: Kyiv time: 15:00 – 00.00; 16:00 – 01.00; 17:00 – 02.00; 18:00 – 03.00; 19:00 – 04.00; 21:00 – 06.00)

• An experienced PC user (General Microsoft Windows knowledge)

• Existing technical background or a strong desire to explore the field of software and hardware products

• Training and time-management skills

• Communication and listening

• Understanding of conflict resolution

• Empathy, positive attitude and Self-Control

Optional:

• Previous experience in the Support field

• Technical background and IT education

• Experience in working with CRM and Jira;

Compensation/Benefits:

Our culture is a collaborative, hands-on community where all voices are welcome at the table and existing associates’ welcome new employees with open arms. We are in an exciting phase of accelerated growth, and we welcome motivated individuals keen to hit the ground running. We also offer career and proficiency development plans and free English courses with native speakers.

Arcus Universe Limited — www.arcus-universe.com — is a leading UK Gold Certified Partner of Acumatica ERP, and requires a strong individual to join our team.

Working out of our L’viv, Ukraine office, you will be responsible for handling customer support queries and working alongside team members to implement ERP systems for customers.

Primary responsibilities:

To manage and resolve support cases for clients in particular:

System configuration

Guidance

Training

Report writing

Managing change requests

Key skills and attributes:

Intermediate spoken and written English

Strong aptitude for learning software systems

Intermediate skills with Microsoft Excel

Desired skills:

Finance, Accounting, Bookkeeping, education or professional experience

Experience using Reporting tools such as Crystal Reports

Experience with ERP and/or Accounting software

Knowledge of SQL

Data management, data import/export, data scripting

Personality attributes:

A self-driven and ambitious individual who can demonstrate the ability to perform tasks with quality and in a timely manner with a minimum of supervision

Adaptability, tact, commitment, resourcefulness, and proactive communications

Acts with integrity and has a track record of excellent problem-solving skills

Ability to work under strict deadlines

Acts professional at all times

We’re looking for a Lead/Senior Android Developer to join our team and contribute to the development of Trigger Neobank Engine — our flagship platform for building digital banks.

This is an excellent opportunity for an experienced mobile engineer who thrives on complexity, values clean architecture, and wants to work on real, scalable fintech products. You’ll be joining a team that builds mission-critical banking interfaces used by both internal teams and end-customers.

⚠️ Please DO NOT apply if you DO NOT have proven experience building complex fintech OR enterprise-grade Android applications.

🚀 Project

Trigger Neobank Engine is a powerful platform that enables banks, fintechs, and telcos to launch fully functional digital banking products — from retail to SME and corporate — up to 5x faster and at 10x lower cost.

As an Android Developer, you will:

• Work on highly configurable mobile banking applications
• Build reusable dynamic UI and business components
• Solve real-world fintech challenges like complex and highly customizable mobile components that are rendered in real-time

You will have full ownership of mobile delivery and collaborate closely with UI/UX, backend, product, and implementation teams.

🎯 Key Responsibilities

• Design and implement customizable, modular, scalable, and testable Mobile Interface Engine.
• Build elegant and functional user interface components following best UX and architecture practices
• Ensure application performance, stability, and security across all Android devices
• Collaborate with designers, product managers, and backend engineers to define and deliver dynamic components
• Participate in code reviews and provide technical leadership
• Continuously refine architecture, improve performance, and maintain a high-quality codebase
• Contribute to internal libraries and frameworks used across multiple projects

🛠 Required Skills & Experience

• 10+ years of hands-on Android development experience (Kotlin + Java)
• Deep understanding of Android SDK, architecture patterns (MVVM, MVP, Clean Architecture), and Jetpack components
• Solid grasp of SOLID principles, dependency injection (Dagger/Hilt), and multithreading (Coroutines or RxJava)
• Experience integrating REST APIs and handling edge cases in network-driven apps
• Proficiency in Git / Git Flow and familiarity with CI/CD pipelines
• Experience with UI development using complex component rendering, animations, and accessibility practices
• Experience developing server-side rendering is a strong advantage
• Experience working on Fintech or B2B apps (such as neobanks, wallets, or enterprise SaaS tools) is a strong advantage

📚 Engineering Mindset & Expectations

• Understanding of modular codebases and reusable design patterns
• Familiarity with architectural trade-offs in large-scale Android systems
• Strong focus on clean, reusable, and testable code
• Passion for quality and continuous improvement
• Willingness to challenge assumptions and own outcomes

👤 Personal Qualities

• Proactive and responsible (IT'S A MUST!)
• Strong problem-solving and communication skills
• Ability to work independently in a remote team
• Comfortable collaborating directly with stakeholders and product owners
• Open to feedback and eager to grow

🎁 Offer

• 💻 100% remote work
• 💵 Competitive salary in USD
• ⏰ Flexible work schedule
• 🔍 Chance to work on a world-class fintech platform
• 💼 Experienced leadership and an open, supportive team
• 🌍 Opportunity to collaborate with top-tier banks, fintechs, and telecoms across emerging markets

We are open to considering students.

Can you imagine a new type of broadcasting services that will be the next level of online videos? Mission of our company is to make it real. We are using the most innovative, cloud-based technologies to provide our customers with brand new products, new markets and new opportunities. Do you want to join our team and be a part of this future? If you are ready to start your career with us just send us your CV.

What we are waiting from you:

— Work from office, office in Vinnytsia.

— Knowledge of *nix OS (Ubuntu, Debian, CentOS);

— Knowledge of basic network protocols;

— Knowledge of monitoring systems: (Icinga, Nagios, Grafana, Prometheus);

— Understanding Ansible, Docker, Kubernetes, Proxmox;

— Knowledge of web servers (Apache, Nginx);

— Understanding of troubleshooting;

— Ability to investigate and find information;

— Of course, teamworking;

— English Upper Intermediate.

Will be a plus:

— Need for skills;

— Knowledge of scripting languages (Bash, Python);

— Any kind of experience with system and network administration.

Responsibilities:

— Monitoring of the company’s product;

— Correction of some non-standard situations described in the product instructions;

— Troubleshooting and escalation.

What we are offering:

— Interesting and challenging tasks and projects;

— Regular salary review based on work performance;

— Training, personal development, and career opportunities;

— 3 after 3 working days (3 nights 3 weekends 3 days 3 weekends)with flexible working hours;

— Comfortable working environment, spacious and cozy office;

— Work in a professional team with an informal and friendly working atmosphere;

— English training;

— Paid sick leaves and vacations;

— Fruits, tasty coffee, tea, and cookies;

— Free parking.

We are looking for a PHP/Laravel developer to join our team to work on interesting and complicated projects. The candidate should have experience developing performance optimized applications. You will work with projects for Cyber Security, Logistics, eCommerce.

Requirements:

- To design application architect and implement it

- Refactor and improve existing components

- Create new components from scratch

- Implement new features

- Communicate with other developers

Technologies:

- PHP, Laravel

- JavaScript / Vue.JS / jQuery / HTML / CSS

- MySQL, PostgreSQL, Redis, Elastic Search, Sphinx

- Linux, Git, Redmine, Capistrano

Required skills:

- 3 years and more of experience developing with Laravel

- Skills to develop load-optimized systems

- Skills to implement complicated business logic

- Experience developing REST-API

- API integration, develop modules

- Team-work experience

English — intermediate and above.