Jobs at Djinni

Requirements:

• English — upper-intermediate and higher (speaking and writing)
• Time management skills
• Analytical mindset
• Ability to work in a team-based environment
• A systematic approach to problem-solving
   

Will be a plus:

• Work experience in technical support
• Experience with databases and SQL
• Experience with API
• Experience with ticketing systems (Zendesk, Jira)
• Familiarity with log analysis
• Familiarity with product development life-cycle
• Familiarity with iOS, iPadOS
• Familiarity with any programming language
   

Responsibilities:

• Working on resolving clients issues
• Client communication and issue ownership
• Meeting SLA for owned issues
• Maintain strict and professional communication with other department

Work Schedule: 
Hybrid model with 3 days per week in the office and 2 days of remote work.

Project Description

The system is based on microservice architecture and is running on the general purpose CPUs. It doesn’t require using ASICs and make possible to run the SW both on the bare metal servers as well as on the private cloud infostructure. CableOS is a pioneer in DOCSIS software defined networking (SDN) with all the benefits it gives to the service providers.

Job Description

• Experience of 2+ years in SW testing of complex systems (preferable embedded/network equipment)
• Practical experience with testing artifacts: test plan, test design, test case, bug report
• Basic practical knowledge in networking area
• Good knowledge of Unix/Linux OS
• High level of interpersonal skills. Ability to communicate effectively with different groups.
• B. Sc. In computer science or Electricity Engineering or equivalent

Would be a plus:

• Knowledge in DOCSIS / PON (Passive Optical Network)
• Data traffic generators (Ixia, iPerf.) and analyzers (Wireshark, Averna)
• Script tools/languages (Python, Bash, etc.)
• Hands-on experience with virtualization technologies (Kubernetes, Docker).

Job Responsibilities

• Test (functional/non-functional) complex embedded system
• Debug and troubleshoot setup issues
• Analyze requirements, write/execute test cases/test plans, report bugs.
• Execute automatic tests using existing Framework and analyze the results. Provide requirements for automatic tests
• Work in agile mode as a member of scrum team
• Write automation scripts can be considered.

Mulesoft Integration Specialist (API & Enterprise Integration)
Locations: Europe, Ukraine

The ideal candidate brings strong experience in enterprise integration initiatives, with a primary focus on MuleSoft-based solutions and API-driven architectures. The background should include participation in platform modernization programs, development and support of complex integration ecosystems, and continuous improvement of enterprise integration landscapes.

Key Role In Integration Programs:

Serves as an integration specialist contributing across multiple phases of integration initiatives, from early discovery and design discussions to implementation, stabilization, and ongoing support.

Regularly collaborates with business analysts, architects, and operations teams to clarify integration requirements, identify risks early, and ensure solutions remain maintainable over time.

Known for taking ownership of integration components and following them through their full lifecycle.

Core Competencies And Expertise:

MuleSoft & API Engineering:

Hands-on experience with MuleSoft Anypoint Platform across a variety of integration use cases

Practical application of API-led architecture to support loosely coupled systems and incremental platform evolution

Development and consumption of RESTful and SOAP-based services

Confident work with JSON and XML payloads, including transformation and validation using DataWeave

Experience enhancing existing integrations through refactoring, improved error handling, and performance tuning

Data, Migration & Backend Systems

Involvement in data migration and data synchronization initiatives as part of broader system transformations

Working knowledge of SQL and relational databases, used for validation, reconciliation, and issue analysis

Experience navigating complex data models and resolving cross-system data inconsistencies

Exposure to integrations involving CRM, ERP, and operational platforms

Collaboration, Communication & Ownership

Regular interaction with business and technology stakeholders to clarify requirements and align expectations

Ability to explain integration concepts in a clear and structured manner to mixed audiences

Strong documentation habits, including integration overviews, API descriptions, and operational notes

Demonstrates a strong sense of responsibility for delivered solutions, particularly during critical releases

Able to remain focused and pragmatic when addressing production issues or time-sensitive requests

Delivery & Ways Of Working:

Comfortable working both independently and as part of distributed Agile teams

Experience adapting to changing priorities while maintaining delivery commitments

Contributes to shared team goals by supporting peers and proactively addressing integration risks
 

Key Achievements:

Contributed to multiple enterprise integration initiatives supporting evolving business processes

Played an active role in stabilizing and improving legacy integrations

Supported data migration and system alignment efforts during platform transitions

Recognized for reliability, ownership, and collaborative approach within integration teams

Technical Environment:

MuleSoft Anypoint Platform, REST, SOAP, API-led Architecture, DataWeave, XML, JSON, SQL, Relational Databases, CloudHub, API Manager, Git, CI/CD tools, Jira, Confluence

Certifications

Salesforce Certified MuleSoft Developer

Dell Boomi Professional API Design (nice to have)

Education:

Bachelor of Science in Systems Engineering

Summary:

Senior MuleSoft Integration Specialist with a broad background in enterprise integration work and API-driven solution delivery. Combines solid MuleSoft expertise with strong collaboration skills and a high level of ownership. Experienced in supporting integration solutions over time, adapting to evolving business needs, and contributing to stable, well-documented integration landscapes.

We're hiring a Senior Software Engineer to join us for a long-term engagement with a fast-growing UK travel tech client. The role focuses on owning and evolving their production document AI pipeline (OCR plus ML inference on passport and ID documents, CPU only deployment, no GPU).

This is hands-on production engineering, not research. You'll be improving OCR accuracy, optimizing CPU inference (INT8 quantization, ONNX Runtime, batching), refactoring pipeline complexity, and improving observability of a system serving enterprise clients at scale.

What you'll do:

• Take ownership of the existing OCR and document understanding pipeline in Python
• Optimize ML inference for CPU production (ONNX Runtime, quantization, batching, kernel tuning)
• Improve OCR accuracy, latency, throughput, and memory efficiency
• Refactor architectural complexity and reduce technical debt
• Work across ML systems, backend services, APIs, and data pipelines
• Help shape architectural decisions as the platform scales

Required:

• 5 plus years of professional Python software engineering
• Strong experience with OCR and document processing pipelines
• Familiarity with LayoutLMv3, Doctr, PaddleOCR, EasyOCR, Donut, or DocFormer
• Production ML systems experience (not just notebook experimentation)
• ONNX Runtime, quantization, TorchScript, or related CPU inference optimization
• Strong understanding of PDFs, image preprocessing, bounding boxes, and page segmentation
• Experience with systems serving external customers at scale

Nice to have:

• HuggingFace Transformers production experience
• Enterprise SaaS or aviation/travel tech background
• MLflow, Vertex AI, or similar ML operations tooling
• Distributed systems and backend API design experience

Engagement:

• Fully remote
• Long-term (6 plus months) with potential to expand engineering ownership over time
• Part-time (25-30 hrs/week) or full-time (35-40 hrs/week), depending on candidate availability
• Flexible timezone (engagement requires some overlap with UK working hours)

How to apply:
Send a short note covering relevant OCR / document AI work, production ML systems you've shipped, CPU inference optimization experience, GitHub or LinkedIn, current availability, and timezone.

Required skills

• 2+ years of commercial experience in software testing
• Strong knowledge of Java
• Hands-on experience with UI test automation using Selenide
• Experience working with Selenoid (running tests in containers)
• Solid experience in API testing, including:
  • Postman
  • JMeter
  • Rest Assured
• Experience with TestNG for test execution and reporting
• Understanding of BDD principles and experience with Cucumber
• Experience with build and dependency management using Maven
• Confident use of Git (GitHub)
• Experience working with CI/CD pipelines, including:
  • GitLab CI
  • Jenkins
• Experience using IntelliJ IDEA
• Understanding of software development life cycle (SDLC) and QA processes
• Ability to analyze requirements and create clear, maintainable test cases and automated tests

Nice to have

• Experience with test strategy and test framework design
• Experience working in Agile / Scrum teams
• Basic knowledge of Docker
• Experience with performance or load testing
• Mentoring or code review experience

Responsibilities

• Design, develop, and maintain automated UI and API tests
• Integrate automated tests into CI/CD pipelines
• Analyze test results and provide clear reports on test coverage and quality
• Collaborate closely with developers, QA engineers, and product teams
• Participate in improving testing processes and tools

Infozahyst is a Ukrainian scientific and production center that has been developing software and hardware solutions for Ukraine’s security and defense forces for over 20 years.
We are engineers, analysts, and researchers united by a common goal: to create technologies that ensure Ukraine’s security.

Requirements: 

• 8+ years of professional C# / .NET, 4+ years in a Senior, Tech Lead or Architect role with cross-team
scope.
• Deep knowledge of the CLR (memory model, GC, JIT, allocation patterns, finalization) and core C#
(generics, LINQ, expression trees, async/await internals, synchronization contexts, etc).
• Working knowledge of modern C# (8+): pattern matching, nullable reference types, records,
switch expressions, etc.
• Practical experience with .NET Framework → modern .NET migrations.
• Strong expertise in WPF (MVVM) and data-intensive desktop applications: virtualization, binding
cost, Freezable, Dispatcher patterns, custom controls and ControlTemplate, high-DPI and screen
scaling, UI Automation.
• Solid experience with multithreading: TPL, TPL Dataflow, synchronization primitives, lock-free
patterns, ThreadPool tuning.
• Experience building applications that process real-time streaming data from devices, sensors, or
network endpoints.
• Solid understanding of network programming: TCP/UDP, binary protocols, framing, backpressure,
reconnect logic.
• Hands-on experience with low-allocation patterns and SIMD in .NET: Span<T>, Memory<T>,
ArrayPool<T>, System.Numerics.Vector<T>, hardware intrinsics.
• Strong database skills: MS SQL Server, T-SQL, execution-plan analysis, EF Core, Dapper.
• Strong grasp of software design and architectural review: SOLID, GRASP, DDD, separation of
concerns, clean architecture, design patterns, focus on maintainability, testability, performance.
• Solid foundation in algorithms and data structures: big-O notation, collections trade-offs, graph
and dynamic-programming techniques where applicable to signal-processing tasks.
• Experience with profiling and diagnostics: dotTrace, dotMemory, Visual Studio Profiler, ETW /
PerfView, BenchmarkDotNet.
• Hands-on experience with unit / integration testing (including TestContainers), CI/CD pipelines,
quality gates.
• Proficient with Git and modern branching / code-review practices.
• Track record of horizontal expert work: setting standards, cross-team reviews, mentorship,
ownership of domain artifacts (competency matrix, tech radar, coding standards, lessons learned,
etc).
• Experience as an independent technical evaluator in hiring and Performance Review.
• Excellent communication and mentoring, able to defend technical positions in writing and in
discussion.
• English: B2 or higher.

Preferred Skills:

• DSP fundamentals: FFT, windowing, FIR / IIR filtering, spectral analysis, I/Q data.
• Radio engineering and SDR: modulation types, channel and noise models, baseband vs passband,
link-budget analysis, SDR architecture and sample-streaming interfaces.
• GPGPU (CUDA, OpenCL, ILGPU) for signal-processing workloads.
• Native interop in .NET: P/Invoke and C++/CLI for performance-critical code and hardware
integration.
• Public technical activity: articles, conference talks, open-source contributions, etc.
• Agile (Scrum / Kanban) with release-based planning.

Key Responsibilities:

• Co-own the .NET competency matrix and domain tech radar with the Head of Engineering
Excellence Center.
• Author coding standards, review templates, checklists and reference solutions contributing deep
cross-domain expertise.
• Build and run internal enablement: lectures, workshops, mentorship.
• Provide expert consultation and architectural review across projects.
• Drive root-cause analysis of complex defects across .NET projects.
• Define release-readiness criteria within the domain.
• Design and run technical interviews, calibrate ratings across interviewers.
• Act as independent technical evaluator in Performance Review, support IDP design.
• Support pre-sale (assumptions, risks, recommendations), contribute to Project Brief and Project
Cost without owning delivery.
• Surface project problems suitable for a research track and hand them to the Head of Research
Programs.
• Represent the domain externally (articles, talks, meetups, recruiting brand, etc).

Benefits:

• Employment in a stable and reliable company;
• Working remotely, but available to visit office in Kyiv once a month;
• Competitive salary;
• A 5-day work week with an 8-hour workday within the 9:00–20:00 time window;
• Support for personal and professional growth, including opportunities for training and reimbursement of its cost;
• Care for employee health through medical insurance, 18 working days of paid vacation, and sick leave coverage;
• Openness to new ideas and approaches, with healthy communication within the team;
• Unique and exciting projects;
• Involvement in a mission that brings us closer to victory!

Dear candidates, we will review your resume within 10 business days, and if the decision is positive, we will definitely contact you. If you do not receive feedback from us, it means that we are not ready to offer you this position at the moment.

A potential invitation to potential minds!

4K-Soft is People. People are most important to us. People are at the heart of every connection we build. Come and join 4K-Soft, where human minds come together to pave the way for the future. We offer a variety of full-time jobs, training programs and internships. Only imagine, how you can help our company and start your career with 4K-Soft!

We are looking for a Junior FullStack Web Developer.

What we expect from you:

2+- years of commercial experience in Node.js + React.

We offer:

Competitive level of remuneration

Modern comfortable office or remote work

Convenient work schedule, paid vacation and sick leaves

The opportunity to grow professionally by participating in the implementation of interesting and complex projects, as well as showing personal initiative.

A potential invitation to potential minds!

4K-Soft is People. People are most important to us. People are at the heart of every connection we build. Come and join 4K-Soft, where human minds come together to pave the way for the future. We offer a variety of full-time jobs, training programs and internships. Only imagine, how you can help our company and start your career with 4K-Soft!

We are looking for a Middle FullStack Web Developer.

What we expect from you:
English level: B2 or higher
Experience: 3+ years working with Node.js and React

We offer:

Competitive level of remuneration

Convenient work schedule, paid vacation and sick leaves

The opportunity to grow professionally by participating in the implementation of interesting and complex projects, as well as showing personal initiative.

We’re looking for a Senior Engineer who thrives on unfamiliar problems — someone who can land in a customer’s environment, reverse-engineer poorly-documented vendor APIs, and ship a working integration end-to-end, solo.

What makes you a great fit:

• 5+ years of professional software development experience, including 3+ years of hands-on experience in Python.
• Proven track record in designing and building integrations against third-party REST APIs.
• Comfortable working in unfamiliar codebases and picking up new stacks as engagements demand.
• Upper-intermediate written and spoken English.
• Self-managed in an async remote setting — strong ownership, communication, and time management.
• Curiosity and dive-deep mentality — comfortable when documentation is incomplete or absent.

• AI-as-tool fluency — productive use of Claude code, Copilot, Cursor, or similar for research and implementation.

   

Will be a plus:

• Prior customer-facing engineering experience (joining technical calls, gathering requirements).
• Familiarity with security products (SIEM, EDR, vulnerability management, threat intel, firewalls, etc.).

• Experience working in or alongside a SOC.

   

Why work with us?

• People-first management with minimal bureaucracy
• A friendly company culture, proven by employees who choose to return
• Flexible working hours
• 29 days of PTO (18 working days per year, plus all national holidays)
• 10 paid recovery days
• Full financial and legal support for independent contractors
• Free English classes, with native speakers or Ukrainian teachers

• Dedicated HR support

   

Your day-to-day in this position:

• Design and build bespoke integrations between our products and customer-specific security stacks — primarily in Python, occasionally in whichever stack the engagement demands.
• Tackle the hardest integration problems: the non-conventional, “out-of-the-books” engagements that standard product connectors can’t cover.
• Own each engagement end-to-end — discovery and technical scoping through implementation, testing, and handover.
• Join customer technical calls alongside PM/CSM to sharpen requirements; drive written follow-up between sessions.
• Reverse-engineer poorly-documented vendor APIs and build robust integrations against them.

• Capture learnings from each engagement and feed them back to the product and integration teams so the next engagement is easier.

   

What is your new project?

• Domain: Computer and network security
• Location: Israel
• Company size: 51-200 employees
• Founded in: 2009
  
  Our next steps:

✅ Intro call with a Recruiter — ✅ Tech livecoding interview — ✅ Tech theoretical + system design interview — ✅ Managerial interview — ✅ HR client interview — ✅ Reference check — ✅ Offer

We’re looking for a Technical (Python) Support Engineer to keep our production applications stable and fast during weekend shifts. You’ll handle incident triage, bug fixes, and small improvements while collaborating with the core team when escalation is needed. Shift: Full time on Weekdays (From Monday to Friday) 00:00 — 8:00 (GMT +3)

What you’ll do

• Maintain and troubleshoot Python/Django web applications
• Debug and optimize database performance (PostgreSQL)
• Operate core AWS services (EC2, S3)
• Diagnose issues with cross-functional teams and implement quick fixes
• Keep code changes clean, documented, and secure
• Handle end-user requests and provide technical assistance

What we’re looking for:

• English: Upper-Intermediate or higher
• Experience: 6+ months with Python & Django OR no commercial experience but:
   
  • Completed relevant courses/bootcamps (Python, Django, Databases, AWS)
  • Strong fundamentals (data types, HTTP/REST, Git, basic Linux, debugging)
  • Hands-on projects (pet projects, labs, internships) — GitHub links welcome
• Solid knowledge of PostgreSQL (or another relational DB)
• Basic familiarity with AWS (EC2, S3)
• Strong analytical and debugging skills
• Basic understanding of REST APIs and front-end basics (HTML, CSS, JavaScript)
• Clear communicator; comfortable working independently and in a team

Nice to have

• Docker, Kubernetes, and CI/CD pipelines
• Web application security best practices
• Experience in an Agile environment

What we offer

• Paid part-time weekend shifts
• Flexible choice of shift blocks
• Supportive team and transparent processes
• Fast track to real production experience

Requirements:
2+ years of experience in content creation
Experience writing and working with IT-related content
Interest in understanding complex technical topics in IT
Strong experience working with AI tools
Understanding of content style, tone of voice, and different writing approaches
Research skills
Desire to grow in the IT field and industry

Responsibilities include writing content for:
landing pages
case studies
offers
services
presentations
product descriptions

We are M&M's performance marketing agency. We specialize mainly in Western projects, working with Google, TikTok and Facebook platforms, as well as SEO and email marketing.
 

Due to the constant growth of our business, we are looking for a new team member who wants to join us in achieving high results for clients.

You will have to work in a team with a project manager and a team lead who are ready to help in implementing our clients' ideas and strategies.
 

Some of our clients for whom we manage budgets of $10,000 — $30,000+:

https://www.msdssource.com

https://chaosfishing.com

https://oblinor.no/

https://writers.work

https://www.lorooro.com

https://dlnskstore.com/

https://www.glowhour.com/
 

Responsibilities:
Advertising setup in Google, Facebook, including technical integration of other services Pixel, GA, GMC, GTM, etc.;
Development of advertising campaign strategy and creation of a funnel within the advertising platform;
Conducting analytics based on work results;
Complete independence and autonomy;
Supervision and setting tasks for a junior specialist;
Interaction with the project manager

Requirements:
Experience working as a Middle/Senior PPC specialist (Facebook/Google) - knowledge of both platforms required;
Skills in GTM, GA and GMC;
Knowledge of English at level B2;
Experience with lead generation and e-commerce projects;
Creativity, an extraordinary approach;
Correspondence (rarely possible calls) with clients in English.

Conditions:
Remote work;
Full-time, 10-18 Mon-Fri.

Our advantages:
Interesting projects from the USA and Europe with an advertising budget of $2000;
Opportunity to develop and realize your potential in interesting projects;
Interesting projects with international companies. Among our clients are FinTech, Ecommerce, Real Estate and others;
Competitive salary;
Convenient work schedule (you can work whenever you want, the main thing is to meet deadlines);
Opportunity to influence the development of the agency, adding your experience to our vision.

We’re expanding our engineering team and looking for developers who are comfortable building production-grade React and Node.js applications for early-stage companies in healthcare, fintech, and AI.

Although the role is primarily front-end oriented, the ability to contribute to backend services in Node.js is important.

You’ll join a team with clear processes, a modern stack, and a strong engineering culture.
 

What you will do

• Develop web applications using React and related tooling.
• Build and maintain backend services and APIs with Node.js (Nest.js or similar frameworks).
• Work with cloud environments and containerized setups using tools like Docker, Kubernetes, AWS, or GCP.
• Participate in architectural discussions, propose improvements, and help maintain technical standards.
• Implement new features from specification to production.

What we expect

• Solid knowledge of JavaScript (ES6+) and TypeScript.
• Strong practical experience with React
• Familiarity with Node.js (Nest.js or Express).
• Experience developing APIs using Node.js frameworks.
• Understanding of relational or NoSQL databases (Postgres, MongoDB, Firebase, Supabase).
• Ability to write maintainable, well-structured code and follow best practices.
• English at an Intermediate level or higher.

Additional advantages

• Experience with major cloud providers (AWS, Google Cloud).
• Experience with React Native
• Practical understanding of Docker/Kubernetes.
• Familiarity with CI/CD pipelines (GitHub Actions, GitLab CI, CircleCI).

What we offer

• Engaging projects built with a modern, well-supported tech stack.
• A review process that ensures consistent feedback and knowledge sharing.
• A culture focused on continuous learning and professional development.
• Full remote work with a team distributed across multiple countries.
• Competitive compensation in USD with periodic performance reviews.
• Flexible payment methods tailored to your location.
• Work schedule aligned with your time zone.
• English practice sessions.
• Paid sick leave and annual vacation (15 business days).
• Regular team activities online.
• Coverage of monthly psychologist support sessions.

Job description:

Sales teams need support from with declined transactions of clients. Need to communicate with PSPs about payments of clients to get them approved fast and correctly. Communication in English with sales agents, manager, and psps via telegram/email/teams.

Requirements:

• Verbal and written communication skills in English, B1-B2;

• Proven experience in economic sphere will be a plus;

• Proven experience with payment systems will be a plus;

• Experience of work in bank will be a plus;

• High organizational skill & attention to detail to ensure all specifications are met;

• Ability to manage a number of tasks simultaneously;

• Independent in day-to-day job;

Basic salary 750 USD

Payment will be on crypto currency wallet.

Shifts - Monday - Friday: 9 hours during 6AM - 9PM

Weekends - 150%

Holidays - 150%

Vacation - unpaid

Location: Ukraine

Equipment: Yes

Responsibilities

• Customer acquisition.
• Participation in the process of systemic lead generation and sales activities of the company;
• Support and processing on new and existing sales channels and sales sources;
• Participation in the process of pre-sales and sales activities;
• Lead validation, requirements gathering
• Clarification of the client’s requirements (problems) and conducting sales activities (closing deals);
• Conclusion of transactions and support of the process of entering the project/client;
• Creation of commercial offers;
• Account management out upselling and cross-selling events for new and existing company clients.
• Work on a clear track of Sales plans , sales metrix and KPIs: leads worked, calls, offers, offer value sent, deals won, new clients, revenue.

Requirements:

• 3+ years of experience in IT sales;
• Proven experience in closing deals with the ability to present
• Proven technology knowledge (service, service lines, product)
• High level of English (Upper-intermediate);
• Experience in closing deals on outsourcing and outstaffing models
• Experience in selling projects/solutions of web development and eCommerce;
• Experience in selling solutions for eCommerce (web, mobile);
• Experience with B2B and B2C segments.
• The presence of closed deals from at least 3 different sales channels (with the ability to demonstrate results);
• Would be a plus RoadShow Experience 
• Experience of Work trips and offline sales.

Will Be a Plus:

• Knowledge of the German language;
• Successful experience of sales activities in a particular region or country;
• Experience in selling solutions and services based on CMS Magento, WordPress;
• Successful sales experience in several channels;
• The ability to design and implement a sales funnel using various sales tools.

We Offer:

• In-house tech talks & knowledge sharing;
• Remote work;
• Ability to participate in RoadShows and conferences ;
• Flexible and negotiable working schedule;
• Paid sick leaves, vacations, days off;
• Growth plan and bonuses for additional responsibilities/activities;
• Fair compensation that scales with your skills