Jobs at Djinni

We are a Ukrainian outsourcing company Join.To.IT, founded in 2012, and delivering software solutions across diverse business domains.
We focus on building long-term partnerships with our clients and delivering solutions that create real business impact. Our team consists of experienced professionals who take ownership of their work, value clear communication, and are committed to high standards in everything they do.
At Join.To.IT, we create an environment where engineers can grow, influence technical decisions, and contribute to meaningful projects alongside a strong and supportive team. 

Responsibilities
Drive IT services sales from initial contact to deal closure
Manage lead generation efforts and develop new client acquisition channels (Upwork and LinkedIn)
Conduct negotiations with clients, including C-level stakeholders
Participate in project estimation together with technical teams
Build and maintain long-term client relationships
Identify growth opportunities within existing accounts (upselling)
Prepare commercial proposals and oversee contract execution
Collaborate with delivery teams to align scope, resources, and budgets
Analyze market trends and competitors to support sales strategy
Represent the company at events, conferences, and networking activities

Requirements 
Proven experience in IT services sales and full sales cycle management
Experience working with SDRs and/or marketing teams
Strong negotiation and objection-handling skills
Understanding of the estimation process and basic technical knowledge
Experience in Account Management and long-term client relationship building
Customer Success mindset with the ability to resolve conflicts effectively
Experience preparing commercial proposals and managing budgets
Ability to collaborate effectively with technical teams
Understanding of Fixed Price delivery models
Strong analytical, strategic thinking, and presentation skills
Upper-Intermediate+ level of English

Nice to Have
Understanding of SDLC (Software Development Life Cycle)
Familiarity with Lean and Scrum methodologies

We Offer
Office-based work format (Kyiv, near Vasylkivska metro station with shelter, Starlink and uninterrupted power supply)
Free gym access near the office
Paid vacation and sick leave
Medical Insurance
Compensation for professional courses and development
Supportive and loyal management

N-iX is a global software development service company that helps businesses across the globe create next-generation software products. Founded in 2002, we unite 2,400+ tech-savvy professionals across 40+ countries, working on impactful projects for industry leaders and Fortune 500 companies. Our expertise spans cloud, data, AI/ML, embedded software, IoT, and more, driving digital transformation across finance, manufacturing, telecom, healthcare, and other industries. Join N-iX and become part of a team where your ideas make a real impact.
 

Our client is a leading, fully regulated US-based digital asset trading platform. They provide secure, low-latency access to cryptocurrency markets, acting as a bridge between traditional finance and the Web3 ecosystem.
 

The Senior Mobile Engineer will play a pivotal role in transitioning the core mobile platform from native environments to a unified Flutter/Dart codebase. You will maintain the stability of the existing production iOS app while architecting and developing robust, scalable cross-platform features, ensuring a seamless migration process.
 

Key Responsibilities:

• Maintain, enhance, and support our production native iOS application written in Swift.
• Collaborate on the design and development of a new Flutter/Dart codebase, ensuring performance and scalability.
• Own end-to-end delivery of mobile features, including development, testing, release, and ongoing support
• Build clean, modular, and reusable code to support scalable mobile architecture
• Collaborate with Product, Design, and Backend teams to define requirements and deliver high-quality features
• Optimize app performance, responsiveness, and reliability across a range of iOS devices
• Integrate RESTful APIs and ensure efficient data handling and state management
• Participate in code reviews and contribute to maintaining high standards of code quality and maintainability
• Identify and resolve performance bottlenecks, bugs, and technical issues
• Partner with QA and DevOps to support CI/CD pipelines, automated testing, and release processes
• Mentor junior engineers and contribute to a culture of continuous improvement
   

Required Qualifications:

• Bachelor's degree in Computer Science or a related field;
• 5+ years in mobile development experience: 3+ years of native iOS (Swift) and 2+ years of Flutter/Dart (or strong cross-platform experience with proven learning track).
• Strong expertise in iOS development: Swift, UIKit/SwiftUI, architecture patterns (MVC, MVVM, VIPER, Clean), and modern concurrency (Combine, async/await)
• Hands-on Flutter experience: Dart, state management (Provider, Riverpod, Bloc, or GetX), and native–Flutter integration (platform channels/pigeon).
• Proven experience in app migration or hybrid architectures (native + Flutter), ensuring production stability during transition.
• Solid experience with REST APIs, async data handling, and state management across mobile layers.
• Experience with performance optimization and debugging tools (Xcode Instruments, Flutter DevTools, Firebase).
• Strong testing practices: XCTest/XCUITest, flutter_test/integration_test, CI-integrated automation.
• Familiarity with mobile security best practices (secure storage, biometrics, certificate pinning, auth flows).
• Experience with Git and CI/CD pipelines (Fastlane, Bitrise, GitHub Actions, Codemagic), App Store processes (TestFlight, App Store Connect).
• Experience working in FinTech, banking, trading, or other highly regulated environments, with a strong collaboration and mentorship mindset across cross-functional teams (Product, Design, Backend, QA, Android); 
• Upper-Intermediate level of English or higher.
   

Preferred Qualifications:

• Exposure to Android (Kotlin) and full cross-platform transitions; mobile analytics/push notifications (APNs, FCM); and crypto / Web3 mobile integrations - wallet flows, WalletConnect, MetaMask SDK, transaction signing, on-chain data display.

We are looking for a Sales / Business Development Manager focused on new business development and account expansion within the digital / marketing services domain.

The role requires a proactive hunter mindset, strong B2B sales experience, and the ability to align client commitments with actual delivery capabilities.

Key Responsibilities

• Drive new business acquisition through outbound and lead generation activities
• Conduct first communication, qualification, and pitching
• Work with cold leads and build a sustainable pipeline
• Identify client pain points and convert them into closed deals
• Ensure alignment between client expectations and delivery capabilities
• Maintain high CRM discipline: forecasting, documentation, reporting
• Collaborate closely with internal delivery teams
   

Requirements

• 2+ years of experience in B2B sales
• Experience working in digital / marketing agencies (Digital services, IT products for B2B)
• Proven experience working in an International  environment (B2+ level or higher)
• Strong lead generation and cold outreach experience
• Negotiation skills
• Strong understanding of delivery capabilities and technical feasibility
• Experience working with CRM systems
   

Nice to Have

• High-ticket sales experience (retainers, long-term contracts)
• Deal closing ownership
• German language
• Continuous professional development and training participation
   

Interview Process

• Recruiter screen (30–45 min)
• Interview with Hiring Manager (45 min)
• Reference check
• Offer

About the Role

We're looking for a skilled Middle .NET Developer to strengthen our backend engineering team. You'll build and maintain scalable applications using modern .NET technologies, collaborate with cross-functional teams, and contribute to architectural decisions. This role provides an excellent opportunity to deepen your expertise and progress toward a senior position.
 

Key Responsibilities

• Develop and maintain robust applications using .NET Framework and .NET Core
• Design and implement scalable backend solutions following SOLID principles
• Build and optimize REST APIs and web services
• Collaborate with frontend, DevOps, and product teams on feature delivery
• Conduct code reviews and provide mentorship to junior developers
• Troubleshoot complex issues and implement reliable solutions
• Participate in system architecture discussions and technical planning
• Write clean, well-tested code with comprehensive documentation

Required Skills

• 3-5 years of professional .NET development experience
• Strong proficiency in C# and .NET Core/.NET Framework
• Experience with ASP.NET Core and building REST APIs
• Knowledge of SQL Server and relational databases
• Familiarity with Entity Framework or similar ORM tools
• Solid understanding of LINQ and async/await patterns
• Experience with version control (Git)
• Proficiency with unit and integration testing (xUnit, NUnit, Moq)
• Strong problem-solving and communication skills

Preferred Qualifications

• Experience with microservices architecture and distributed systems
• Knowledge of message brokers (RabbitMQ, Azure Service Bus)
• Familiarity with Docker and containerization
• Experience with CI/CD pipelines and DevOps practices
• Azure cloud platform experience
• NoSQL database knowledge (MongoDB, Redis)
• Experience with dependency injection and IoC containers
• Agile/Scrum methodology background

What We Offer

• Competitive salary based on experience
• Remote or flexible work arrangement
• Professional development opportunities and training budget
• Collaborative and innovative work environment
• Clear path to senior/lead developer roles
• Comprehensive benefits package

RONIS is a custom software development and design company located in Ukraine.

With 20 years of experience, we provide consultancy services, strategy planning, IT landscape architecture, custom software architecture, and development, as well as integrations with existing systems.

We are now focusing on deep learning, artificial intelligence, and big data, and on their importance in e-Commerce.

Responsibilities:

- Manage software development projects from planning to delivery
- Coordinate communication between clients and development teams
- Monitor project progress, timelines, and deliverables
- Create and maintain project documentation
- Organize and facilitate team meetings
- Ensure transparent communication across all stakeholders
- Support the team in resolving blockers and operational issues
- Track project statuses and report updates to stakeholders
- Ensure product quality and timely delivery

Requirements:

- 2+ years of experience as an IT Project Manager
- Strong understanding of software development processes
- Practical experience with Agile methodologies (Scrum, Kanban)
- Experience managing web and/or mobile development projects
- Ability to coordinate cross-functional teams 
- Experience with project management tools such as Jira, Confluence, ClickUp, Trello, or similar
- Strong communication and stakeholder management skills
- Ability to manage project scope, priorities, timelines, and risks
- Experience conducting Scrum ceremonies (Daily meetings, Sprint Planning, Retrospectives, Grooming)
- Understanding of estimation, workload planning, and resource management
- Experience working with clients and handling client communication
- Ability to identify blockers and proactively resolve issues
- Strong analytical and problem-solving skills
- Upper-Intermediate English or higher (written and spoken)

Nice to Have:

- Technical background or understanding of frontend/backend architecture
- Knowledge of QA processes and testing flows
- Experience working with remote teams

We offer:

- Competitive salary based on your experience and skills
- Remote work
- Paid vacation and sick leave
- Opportunity to work on interesting international projects
- Friendly and supportive team environment
- Professional growth
- Comfortable onboarding process and team assistance
- Modern tools and well-established workflows
- Opportunity to influence processes

RedCore is an international business group that creates technological solutions for digital markets. Our products and services cover fintech, marketing, e-commerce, customer service, communications and regulatory technologies. 

We are looking for a Media Buyer to join our team!

Requirements:

 - User acquisition expert: 1+ years of proven track in building marketing retention campaigns for a consumer product through ad networks;
- Previous experience with ad networks;
- Understanding of attribution models (post view vs click) and conversion deduplication;
- Awareness of GEO-specific advertising regulations for gambling verticals;
- Gambling experience is mandatory;
- Work with creatives, experience with setting up tasks for video creatives;
- Experience in A/B testing and campaign optimization;
- Ability to identify issues within campaigns and develop solutions quickly;
- Understanding user journey, user segmentation, engagement, and customer experience;
- Ability to analyze and understand such metrics as CTR, CR, CPA;
- Previous work with such tools as Jira, Tableau;
- Understanding how to work with pixels, postbacks, user cookies;
- Remote work experience: ideally, in an international team;
- Flexible and open to feedback, with a continuous improvement mindset;
- Comfortable working independently and managing large-scale ad budgets;
- Good English communication skills

Responsibilities:

- Launch retargeting and performance campaigns;
- Manage the structure of retargeting campaigns;
- Close work with existing campaigns;
- Technical setup: pixel integration, postback configuration;
- Inventory management: maintaining whitelists and blacklists of publishers and domains in DSP;
- Creative performance analysis and briefing for the design team based on CTR and conversion data;
- Regular reporting on campaign performance by GEO and placement;
- Close work with existing campaigns.

What are the conditions and bonuses?

☘️An exciting and challenging job in a fast-growing product company, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance and other;

🤝🏻Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed;

📍Beautiful offices in Warsaw, Limassol work remotely or on-site with comfort and enjoy the opportunity to build a network of connections with professionals day by day;

🧑🏻‍💻Laptop & all necessary equipment for work according to the ecosystem standards;

🏖Paid vacations, personal events days, days off;

🫖Paid sick leave;

👨🏻‍⚕️Medical insurance;

💵Referral program enjoy cooperation with your colleagues and get the bonus;

📚Educational support by our L&D team: internal and external trainings and conferences, courses on Udemy;

🗣Free internal English courses;

🧘Sport benefit;

🦄Multiple internal activities: online platform for employees with quests, gamification and presents for collecting bonuses, RedCore talks club for movie and book lovers, board games cozy evenings, special office days dedicated to holidays;

🎳Company events, team buildings.

Our client is an innovative manufacturer of medical devices in the United States, producing devices and software applications.

In this project, you will have a great opportunity to be involved in the full development life cycle of medical software, which is designed to assist individuals by processing information from medical devices to identify health trends and track daily activities. In addition, there are opportunities to work with medical devices, in the scope of end-to-end testing.

Job Description

• 4+ years of dedicated experience testing complex software systems without user interfaces (i.e. API testing)
• Proven track record of independently developing, executing, maintaining, and enhancing robust automated test scripts and frameworks
• 4+ years of strong, hands-on coding experience with Java
• Experience with Selenium WebDriver, RestAssured
• Solid understanding and independent application of QA practices (black box testing, risk-based testing, system testing, regression testing, exploratory testing)
• Test Coverage & Mocking strategies

Must have:

• Test Automation Experience: API (backend) testing (4+ years)
• Test Automation Frameworks: RestAssured, Selenium
• Programming Languages: Java (4+ years)
• Tools: Postman, event logging (Splunk/Datadog), CI/CD pipeline integration
• Regulatory experience
• Excellent English communication skills

Nice to have:

• Salesforce
• Atlassian tools: Jira, Confluence, Bamboo
• mySQL
• Jama QMS
   

Job Responsibilities

• Perform rigorous testing on complex software systems without user interfaces, focusing heavily on comprehensive API testing.
• Develop, execute, and maintain automated test scripts and contribute to framework design to ensure software quality and reliability.
• Write and maintain clean, reusable, and efficient test code using Java
• Use Selenium WebDriver and other E2E frameworks for advanced and comprehensive web application testing.
• Apply solid QA practices to systematically and independently identify, track, and resolve complex software issues.

We are looking for a proactive, responsible, and highly motivated Recruiter / Researcher to join our team and help us attract top IT talent across European markets. This role is perfect for someone who thrives on research, candidate engagement, and process optimization, and wants to contribute to building a high-performing international recruitment operation.
 

Responsibilities:

• Source candidates using LinkedIn, Djinni, GitHub, and other platforms
• Build and maintain candidate pipelines for open and upcoming roles
• Conduct initial outreach and pre-screening
• Use automation tools to scale sourcing and outreach processes
• Maintain accurate data in CRM and internal systems
   

Requirements:

• 1+ year of experience in sourcing or recruiting
• Hands-on experience with LinkedIn automation tools and sourcing platforms
• Experience using tools for automated outreach and candidate tracking (e.g., LinkedIn Helper, PhantomBuster, etc.)
• Understanding of IT roles and technologies 
• Understanding of European talent markets and hiring specifics
• Strong research skills and attention to detail
• Excellent communication and interpersonal skills
• Ability to work independently and manage multiple tasks
   

We offer:

• Remote work
• Flexible collaboration options: fixed salary, performance-based hiring bonuses, probation period of 3 months
• Opportunity to grow 
• Work with international clients and interesting technical roles
   

💬 If you’re interested, feel free to apply or message directly.

We are seeking a highly skilled Senior iOS Developer proficient in Swift to join our dynamic team. As a Senior iOS Developer, you will be responsible for designing and implementing advanced applications for our utility suite on iOS devices. Your expertise will play a crucial role in enhancing our product functionality, performance, and overall user experience.

This is a project-based engagement (up to 3 months) with flexible working hours

Responsibilities:

• Design and build advanced applications for the iOS platform using Swift from a scratch.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Unit-test code for robustness, including edge cases, usability, and reliability.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
• Ensure the performance, quality, and responsiveness of application.

Requirements:

• Proven experience as an iOS Developer, with at least 5 years of experience in Swift and launching iOS applications from scratch, including architecture design, implementation, testing, and App Store deployment.
• Solid understanding of the full mobile development life cycle.
• Experience with Core Data for local data storage and offline support.
• Experience with Vision framework for image analysis and processing.
• Experience with third-party libraries and APIs.
• Strong knowledge of iOS UI design principles, patterns, and best practices.
• Experience working with remote data via REST and JSON.
• Familiarity with PhotoKit and Image I/O is a plus.

Preferred Qualifications:

• Experience with Agile development methodologies.
• Familiarity with cloud message APIs and push notifications.
• Published applications on the App Store.
• Contributions to open-source projects.

RedCore is an international business group that creates technological solutions for digital markets. Our products and services cover fintech, marketing, e-commerce, customer service, communications and regulatory technologies. 

We are looking for a Media Buyer to join our team!

Requirements:

- Experience with TikTok Ads (retargeting) for at least 1 year
- Understanding of pixel-based audiences and funnel structure (registration → deposit → LTV)
- Experience working with gray verticals (gambling / betting / similar niches)
- Ability to analyze key metrics (CPA, ROI, CR, CTR) and make data-driven decisions
- Experience in preparing creative briefs and evaluating their performance
- Self-driven with strong ownership of results
- Experience working across multiple GEOs

Responsibilities:

- Launching and optimizing advertising campaigns in TikTok Ads (retargeting)
- Working with audience segments (Non-FTD, Non-Active, Active Base, etc.)
- Scaling profitable setups and pausing underperforming ones
- Analyzing metrics and making data-driven decisions
- Creating briefs for creatives and testing hypotheses
- Monitoring audience fatigue and refreshing creatives
- Collaborating with cross-functional teams (design, analytics, account management)
- Managing assigned GEOs

What are the conditions and bonuses?

☘️An exciting and challenging job in a fast-growing product company, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance and other;

🤝🏻Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed;

📍Beautiful offices in Warsaw, Limassol work remotely or on-site with comfort and enjoy the opportunity to build a network of connections with professionals day by day;

🧑🏻‍💻Laptop & all necessary equipment for work according to the ecosystem standards;

🏖Paid vacations, personal events days, days off;

🫖Paid sick leave;

👨🏻‍⚕️Medical insurance;

💵Referral program enjoy cooperation with your colleagues and get the bonus;

📚Educational support by our L&D team: internal and external trainings and conferences, courses on Udemy;

🗣Free internal English courses;

🧘Sport benefit;

🦄Multiple internal activities: online platform for employees with quests, gamification and presents for collecting bonuses, RedCore talks club for movie and book lovers, board games cozy evenings, special office days dedicated to holidays;

🎳Company events, team buildings.

We’re looking for 2 Senior UX/UI Designers (Mobile Casual Games)
Ever wondered what it’s like to shape the experience of mobile puzzle games played by millions of users worldwide? Here’s your chance.
We’re currently looking for Senior UX/UI Designers to join a strong, creative team of ~20 developers, artists, and designers working on live casual puzzle games.
📍 Location: Remote (Europe + Turkey)

🎮 What you’ll actually do
You’ll be deeply involved in shaping how players feel inside the game — from the first tap to long-term engagement.
You’ll:
• Lead UX/UI design for new features (from idea → wireframes → final in-game UI)
• Design smooth, intuitive player flows (menus, HUDs, popups, systems)
• Create high-quality, visually strong UI aligned with game style
• Collaborate with product, design, art, and dev teams daily
• Own features end-to-end and see them shipped live
• Improve player experience using data + real player behavior
• Balance usability, engagement, and monetization in smart ways
• Contribute to and evolve a scalable UI design system
• Bring fresh ideas — not just execute, but improve the product

🧠 What we’re looking for
• 4+ years in UX/UI design in the gaming industry
• Strong portfolio with shipped mobile game UI/UX
• Experience with live games and ongoing feature updates
• Deep understanding of free-to-play / casual game UX patterns
• Strong Figma + Adobe Creative Suite skills
• Experience working with developers (Unity is a plus)
• Strong sense of layout, typography, composition, visual hierarchy
• Ability to translate game/product goals into player experience
• Confident English communication

🤝 Soft skills that matter
• Ownership mindset — you lead features, not just design them
• Strong product thinking + player empathy
• Comfortable in fast-paced, iterative environments
• Open to feedback and collaboration across disciplines
• Passion for games and interactive experiences

✨ Why this role is interesting
• Real ownership over features used by millions
• Creative freedom (not just task execution)
• Strong, experienced team with solid production pipelines
• Impact-driven culture focused on quality, not just speed

We’re working on a product that powers real conversations — an intelligent call center platform built to handle serious communication volumes. Think smart call routing, live dashboards, VoIP, and deep CRM integrations. The system is already running, already growing, and needs an engineer who wants to help shape where it goes next.

📍 Lviv / Remote · Full-time · 2+ years · English Upper-Intermediate

Stack

.NET 6+ / C# · React.js · TypeScript · MS SQL Twilio · WebRTC · SignalR · Azure (optional)

What You’ll Do

→ Build and maintain features across the full stack

→ Integrate telephony and CRM systems via APIs

→ Work on performance and scalability

→ Take part in code reviews, estimations, and tech discussions

What We’re Looking For

→ 2+ years with .NET (C#) and React.js in commercial projects

→ Good understanding of web architecture and client-server communication

→ Experience with REST APIs, relational databases, Git

→ English B2

What’s in It for You

✦ Stable long-term project

✦ Mentorship and regular growth conversations

✦ Remote or hybrid

✦ 18 vacation + 5 sick + 10 extra days off per year

✦ Accounting support, office lunches, team events

✦ Work Anniversaries -Special gifts to celebrate milestones.

Project description

We’re looking for a Crowd Marketing Specialist to grow Coupler.io’s presence on Reddit and SaaS-specific communities/forums like Shopify, Xero, etc.

You’ll join conversations where users talk about data, reporting, and automation, and contribute responses tied to real solutions using Coupler.io. You’ll also monitor brand mentions, track discussions, and spot opportunities for meaningful engagement.

If this sounds exciting, apply now! We are open to considering interns for this role!

WHAT’S YOUR IMPACT?

By showing up consistently in online communities, you’ll help users find practical solutions to data and reporting problems, no pitch required. Just good answers that happen to involve Coupler.io in terms of data flow automation, reporting optimization, etc.

Required skills

⭐ 1+ year of experience in digital marketing in any position (experience in Support or Social Media would be a plus)
⭐ Advanced written and spoken English
⭐ Strong communication skills and attention to detail
⭐ Ability to pick up new tools quickly
⭐ Comfortable using AI tools day-to-day (drafting messages, researching threads, etc.)
⭐ Curiosity, self-direction, eagerness to learn
⭐ Basic Google Workspace proficiency (Docs, GSheets, Drive)
⭐ Capability to manage your own tasks and collaborate with a team
⭐ Familiarity with how online communities function

As a plus

🔹Experience managing a Reddit account or crowd marketing in SaaS communities
🔹Background in SaaS, data tools, or marketing technology
🔹Familiarity with data integration or business intelligence concepts

We offer

🌎 Full-remote from any location or in one of our offices (Kyiv/Krakow/Warsaw) bit.ly/rw-remotecollab
💸 Competitive compensation, access to savings program, and deposit policy
💻 Thanks to our hardware policy, we use the best equipment and can regularly update it
🌴 34 days a year as paid time off (24 standard days + 10 more to cover public holidays)
🏋🏼 Health policy budget that will cover your private sports and healthcare expenses
🎤 Participate in our online and offline events
⌨️ Our offices are equipped with modern ergonomic chairs and standing desks
🍪 You can always find fresh food and drinks in our kitchen
🤝 In Ukraine, we collaborate through Diia.City
🤩 More about our benefits and how we work 🔗 Railsware Handbook: railsware.com/handbook

Responsibilities

🔹Monitor Reddit, Shopify, QuickBooks, and other relevant communities for discussions around data exports, reporting automation, and analytics
🔹Respond to threads with clear, helpful answers, and explain how Coupler.io fits where it genuinely does
🔹Create and publish posts in Coupler.io’s own community spaces
🔹Track brand mentions across communities and join conversations where your input adds real value
🔹Maintain a structured log of activity, including threads, responses, and performance
🔹Analyze engagement and share regular insights with the SEO Manager, highlighting trends, gaps, and opportunities

Description

We are looking for a person with basic knowledge of .NET programming who is ready to join our strong and friendly team. You will start with .NET training from our mentor to refresh and consolidate your knowledge, the next step will be training on our products, and then you will join the main team working on a real development task. This is a great opportunity to start your career in IT.

The client is the world’s leading developer of Automatic Identification and Data Collection (AIDC) software with over 30 years of experience and over 750,000 installations across 120 countries. We develop and maintain a set of Web, Windows desktop, and server applications used for receiving, inventory management, product identification, product control, and shipping. The project started in 2006 with 6 employees and grew up to 20+. Nowadays, we have a great team deeply involved in all client processes and business decisions.

Requirements

• Basic knowledge of C# & .NET
• Good understanding of OOP
• Basic knowledge of databases and SQL
• Pre-intermediate English
• Strong willingness to learn

Job responsibilities

• Design and develop components and extensions to existing modules
• Defect investigation, bug fixing, and troubleshooting
• Unit and functional testing
• Writing functional and design documentation
• Following the design and coding standards accepted in the team
• Work with the QA team in order to validate the correctness of the implementation

N-iX is a global software development service company that helps businesses across the globe create next-generation software products. Founded in 2002, we unite 2,400+ tech-savvy professionals across 40+ countries, working on impactful projects for industry leaders and Fortune 500 companies. Our expertise spans cloud, data, AI/ML, embedded software, IoT, and more, driving digital transformation across finance, manufacturing, telecom, healthcare, and other industries. Join N-iX and become part of a team where your ideas make a real impact.
 

Company Overview
Our client is a leading, fully regulated US-based digital asset trading platform. They provide secure, low-latency access to cryptocurrency markets, acting as a bridge between traditional finance and the Web3 ecosystem.

About This Role

The Senior Software Engineer, iOS is part of the Engineering team and reports to our Manager, Engineering. As Senior Software Engineer, iOS, you will be responsible for designing and building high-quality, scalable iOS applications that deliver secure and seamless user experiences. You will partner with Product, Design, Backend, and QA teams to develop features that meet performance, reliability, and usability standards while contributing to mobile engineering best practices.

Key Responsibilities

• Maintain, enhance, and support our production native iOS application written in Swift.
• Collaborate on the design and development of a new Flutter/Dart codebase, ensuring performance and scalability.
• Own end-to-end delivery of mobile features, including development, testing, release, and ongoing support
• Build clean, modular, and reusable code to support scalable mobile architecture
• Collaborate with Product, Design, and Backend teams to define requirements and deliver high-quality features
• Optimize app performance, responsiveness, and reliability across a range of iOS devices
• Integrate RESTful APIs and ensure efficient data handling and state management
• Participate in code reviews and contribute to maintaining high standards of code quality and maintainability
• Identify and resolve performance bottlenecks, bugs, and technical issues
• Partner with QA and DevOps to support CI/CD pipelines, automated testing, and release processes
• Mentor junior engineers and contribute to a culture of continuous improvement

Required Qualifications

• Bachelor's degree in Computer Science or a related field; 5–8+ years of professional mobile development experience, with 4+ years of native iOS in Swift and 1–2+ years of hands-on Flutter/Dart (or strong cross-platform learning track record), including production apps shipped through multiple iOS release cycles.
• Strong proficiency in Swift, UIKit, and/or SwiftUI, with solid command of iOS architecture patterns (MVC, MVVM, VIPER, Clean Architecture) and modern concurrency (Combine, async/await).
• Working knowledge of Dart and the Flutter framework, including at least one state management solution (Provider, Riverpod, Bloc, or GetX) and native ↔ Flutter integration via platform channels / pigeon.
• Strong architectural judgment in platform migrations or codebase rewrites — proven ability to keep a production app stable while progressively migrating features to a new stack (hybrid native + Flutter screens, feature flagging, gradual rollouts).
• Hands-on experience integrating with RESTful APIs, handling asynchronous data flows, and managing app state efficiently across both native and cross-platform layers.
• Proficiency with mobile performance optimization and debugging tools — Xcode Instruments, Flutter DevTools, and Firebase (Crashlytics, Performance Monitoring, Analytics).
• Strong testing fundamentals across iOS and Flutter — XCTest/XCUITest, flutter_test/integration_test, mocking, and CI-integrated automated test suites; familiarity with mobile security best practices (Keychain / Secure Storage, biometric auth, certificate pinning, secure authentication flows).
• Hands-on experience with Git, mobile CI/CD pipelines (Fastlane, Bitrise, GitHub Actions, or Codemagic), and App Store deployment processes (provisioning, TestFlight, App Store Connect, phased rollouts).
• Experience working in FinTech, banking, trading, or other highly regulated environments, with a strong collaboration and mentorship mindset across cross-functional teams (Product, Design, Backend, QA, Android); 
• English at B2 / Upper-Intermediate or higher, sufficient for a final technical interview directly with the US client team.

Bonus: exposure to Android (Kotlin) and full cross-platform transitions; mobile analytics / push notifications (APNs, FCM); and crypto / Web3 mobile integrations — wallet flows, WalletConnect, MetaMask SDK, transaction signing, on-chain data display.