Jobs Lviv, React.js

Insiders is a fast-growing IT company which employs about 200 people. Our company focused on providing innovative digital services and cutting-edge technologies to solve complex business challenges.

We are located in Lviv and currently work in an office format. For candidates from other cities, we offer relocation (an apartment located near the office, this option is free).

What we expect from the candidate:

- Experience in building responsive user interfaces and designs using HTML/CSS.
- Solid knowledge of JavaScript and React/Next.js.
- Understanding of the latest trends and best practices in front-end development.
- Ability to use dev tools, debugger and package managers (npm, yarn).
- Basic understanding of REST principles.
- Experience with Git.
- Knowledge of how to effectively use GitHub during teamwork.

what we offer:

- free study in our Corporate English Academy

- growth and development opportunities for young developers even if you have no commercial experience

- regular salary review (after the completion of each contract)

- provision of Apple equipment

- comfortable office with all amenities not far from the center (uninterrupted internet, generator, tea and coffee, pastries).

- timely payment of salaries.

- corporate events, teambuildings, etc.

- working on projects side by side with Senior developers, which will give you the opportunity to learn and develop.

About the vacavncy:

We are a young and rapidly growing company with almost 200 highly skilled developers of various levels.  As this opportunity requires working from our office, it is open exclusively to Lviv residents. 

We offer free English language courses for employees. Also we provide free corporate housing for our employees from other cities.

What we expect from the candidate:

- Experience in building responsive user interfaces and designs using HTML/CSS.
- Solid knowledge of JavaScript and React/Next.js.
- Understanding of the latest trends and best practices in front-end development.
- Ability to use dev tools, debugger and package managers (npm, yarn).
- Basic understanding of REST principles.
- Experience with Git.
- Knowledge of how to effectively use GitHub during teamwork.
- Excellent communication skills and a collaborative mindset, ability to work with   minimum supervision.
- Knowledge of React will be a plus.
- English level B1 - the ability to communicate with clients, to read and understand documentation in English.

What we offer:
- Personal corporate English language academy
- Flexible and accommodating working hours.
- Welcoming and amiable work environment in a comfortable office space.
- Official employment with a competitive salary that reflects your experience and skills.
- A supportive team of seasoned developers and managers.
- Exciting opportunity to contribute to innovative projects.

Pixel mindIT is an innovative IT company specializing in software development, web applications, and mobile apps. We bring together a team of professionals who work with the latest technologies. You’ll find a creative approach to solving complex challenges, efficient project management, and a continuous improvement process with us.

Requirements:

- Strong proficiency in JavaScript/TypeScript.
- Experience with React, Next.js.
- Proficient spoken English (B1-B2 level).
- Familiarity with Redux/React Redux.
- Experience working with REST API and HTTP methods.
- Proficient in using Git.
- Experience with React Native will be an advantage.

What We Offer:
- Flexible working hours.
- A friendly and welcoming work environment in a comfortable office.
- Official employment with a competitive salary based on your experience and skills.
- An exciting opportunity to contribute to innovative projects.

Pixel mindIT is an innovative IT company specializing in software development, web applications, and mobile apps. We bring together a team of professionals who work with the latest technologies. You’ll find a creative approach to solving complex challenges, efficient project management, and a continuous improvement process with us.

Requirements:

- knowledge JavaScript/TypeScript
- еxperience in developing on React.js;
- knowledge of Next.js would be an advantage

- familiarity with Redux/React Redux

- proficient in using Git.
- English level: B1 or higher.
 

What We Offer:
- Flexible working hours.
- A friendly and welcoming work environment in a comfortable office.
- Official employment with a competitive salary based on your experience and skills.
- An exciting opportunity to contribute to innovative projects.

We are currently looking for a React Native Developer (Mid-Level) to join our dynamic and growing frontend team. You’ll be working onsite alongside 5 experienced Ukrainian developers and a project manager in a collaborative, tech-driven environment.

What You’ll Do:

• Join an ongoing project and gradually take ownership of key frontend tasks
• Collaborate closely with our Lead Frontend Developer to support app architecture, perform code reviews, and handle merges
• Contribute to React Native feature development, optimization, and quality improvements
• Ensure proper testing and debugging, particularly for Apple apps using a MacBook and iPhone
• Work with Jira, Discord, GitLab, and Bitrise for planning, communication, and CI/CD
• Help maintain integrations with major platforms such as OpenAI, Meta, Google, and more

Tech & Tools:

• Tech Stack: React Native (mid to large-scale), iOS/Android
• Tools: GitLab, Bitrise (CI/CD), Jira, Discord
• Testing Devices: MacBook and iPhone (required for iOS builds and testing)
• Integrations: OpenAI, Meta, Google APIs

Who You’ll Work With:

• A team of 5 talented developers and a project manager
• Daily collaboration with the Lead Frontend Developer, focusing on improvements like RN version upgrades, architecture, and best practices

What We’re Looking For:

• 2+ years of experience with React Native development
• Familiarity with the full development lifecycle and Git-based workflows
• Proactive mindset and willingness to take responsibility over time
• Comfortable working onsite with the team
• Experience with iOS/macOS development tools

Про компанію Appexoft

Appexoft is Software Development Company that provides a full range of top-quality IT services. Our mission is to develop first-class applications and Websites to provide our clients with the best solutions for maximizing their profits and converting their ideas into reality.

About company:

Appexoft is Software Development Company that provides a full range of top-quality IT services. Our mission is to develop first-class applications and Websites to provide our clients with the best solutions for maximizing their profits and converting their ideas into reality.

Requirements:

• Experience in developing on React;
• Good spoken English (B1-B2);
• Experience with Redux/React Redux;
• Experience with REST API/HTTP methods;
• Experience with Git.

We offer:

• Interesting and challenging projects.
• Vast opportunities for professional development.
• Competitive salary.
• Delicious coffee biscuits and tea for your good mood.
• The friendly team of professionals.
• Comfortable working environment.

Про компанію Appexoft

Appexoft is Software Development Company that provides a full range of top-quality IT services. Our mission is to develop first-class applications and Websites to provide our clients with the best solutions for maximizing their profits and converting their ideas into reality.

Key Requirements

HTML/CSS/Preprocessors:

• Strong command of HTML5 and CSS3.
• Hands-on experience with SASS, including mixins and style generators.
• Ability to build websites that work smoothly across different browsers, adapt to various screen sizes, and include responsive mobile layouts.

JavaScript/TypeScript:

• Confident use of modern JavaScript (ES6+).
• Solid foundational understanding of TypeScript.
• Competence in handling and managing DOM events.

React & State Management:

• Practical background in developing applications with React.
• Experience applying modern React hooks in real projects.
• Working knowledge of state management tools, including Redux

We are looking for a skilled Trainee React Developer to join our team and develop innovative projects.

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

It is a full-time position in Lviv.

Requirements:

▪️ Solid understanding of React

▪️ Strong JavaScript skills

▪️ Knowledge of HTML5 and CSS3

▪️ English level: Intermediate+ (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

Interview stages:

Initial interview ➜ Technical Interview  ➜ Job offer

We offer:

▪️ IT Club membership

▪️ 18 days of vacation + 8 days of paid state holidays

▪️ Health insurance

▪️ Compensation for language trainings 

▪️ Compensation for educational courses, training, and certificates

▪️ Compensation for sport activities

▪️ Mentorship program

▪️ Employee recognition program with awards

▪️ Running club

▪️ Reading club

▪️ Cozy and pet-friendly office

▪️ Weekly sweets & fruits office days

▪️ Corporate bookshelf

▪️ Office relax zone with PS4, VR, table games, table tennis, aero hockey, mini football table, and gymnastic ladder.

We are looking for a team player!

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

About Behavox

Behavox is a cloud-native AI company providing an integrated controls platform for global banks, asset managers, hedge funds, private equity firms, insurance businesses, and commodity firms. The platform unifies communications and trade surveillance, compliant archiving, policy management as well as front-office analytics on a single, AI-native technology stack, delivered as a globally scalable SaaS-based cloud service.

At Behavox, our engineering culture is built around speed, experimentation, and technical excellence, following agile principles and rapid iteration. We constantly test and adopt the latest cloud technologies and AI tooling, optimising for fast feedback loops and execution. We look for people who can move fast, challenge conventional wisdom, and who want to work at the frontier of modern AI, SaaS platforms, and distributed systems.

Behavox is a high-performance organisation with a strong bias toward delivery, ownership, and responsibility. We commit, and we execute. We are building systems that are complex, mission-critical, and global in scale; systems that many consider too large or too difficult. To do that, we seek the smartest, most technically capable engineers and technologists who take end-to-end responsibility and want to win by building what others cannot.

Founded in 2014 and backed by SoftBank Vision Fund, Behavox is headquartered in London, with offices worldwide, including New York City, Montreal, Seattle, Singapore, and Tokyo.

About the Role

The Software Engineer (React) at BCL2 contributes to the development and maintenance of frontend applications that support core product functionality. The role focuses on implementing well-defined user-facing features within existing React applications, ensuring correctness, usability, and alignment with established frontend patterns.

At this level, the engineer works on clearly scoped tasks under the guidance of more senior engineers and within predefined technical direction. The role is accountable for the quality and reliability of assigned components, timely delivery of frontend changes, and escalating design or implementation issues when necessary.

What You'll Bring

1. React application fundamentals: Knowledge of React, modern JavaScript and TypeScript, and core concepts such as components, hooks, and state handling within an existing codebase.
2. Frontend application structure: Understanding of how frontend modules are organized and how shared components are reused within a React application.
3. Frontend deployment basics: Awareness of how React applications are built and deployed in cloud-hosted environments, including environment configuration concepts.
4. API-based frontend integration: Knowledge of consuming backend APIs from the frontend, including basic data handling, error scenarios, and loading states.
5. Software development lifecycle awareness: Understanding of how frontend changes move through development, testing, and release within an established SDLC.

What You'll Do

1. React feature implementation – Implements and updates React components and features based on provided requirements and technical guidance.
2. State and data flow handling – Uses established React patterns to manage component state and integrate API data within the assigned scope.
3. Frontend testing execution – Writes and maintains unit or basic integration tests for owned components to validate expected behaviour and prevent regressions.
4. API consumption and UI integration – Integrates frontend components with backend APIs using defined contracts and existing data models.
5. Code contribution and issue resolution – Submits code via pull requests, addresses review feedback, and fixes defects within owned frontend components.

What We Offer & Expect

1. The opportunity to work on a global, mission-critical AI platform alongside the best engineers and technologists across multiple geographies.
2. A role with real ownership and impact, building complex systems at scale in an environment that values speed, experimentation, and technical excellence.
3. A highly attractive benefits package, including competitive cash compensation, an equity award aligned with long-term value creation, and comprehensive health insurance for employees and their families.
4. A modern, comfortable office in central Lviv, with an expectation of working from the office three (3) days per week, reflecting our belief in strong in-person collaboration, while remaining flexible to accommodate occasional personal circumstances that may require working from home.
5. A generous time-off policy of 30 days annually, plus public holidays and sick leave, recognising the importance of sustained high performance.

About Our Process

Our selection process is designed to rigorously assess a candidate’s depth of technical knowledge, problem-solving ability, and alignment with Behavox’s mission and core values.

As part of the process, candidates will first participate in a series of interviews focused on evaluating their technical expertise and engineering judgment. Candidates who successfully progress through these interviews will then be invited to complete a live technical exercise with a group of Behavox engineers and engineering managers. The purpose of this live technical assessment is to validate the candidate’s stated technical competencies and assess their ability to solve complex problems with speed, accuracy, and sound engineering judgment. Note that whenever possible, we aim to conduct interviews in person at our offices.

We recognise and respect the time candidates invest in this process. In return, Behavox commits significant time and resources to ensure that those who join us have the capability, judgment, and alignment required to operate at the speed and level of complexity our work demands. We value efficiency and clarity on both sides; if at any point we determine that a candidate is not a fit, we reserve the right to immediately conclude the interview or the technical assessment.

Please note the following:

• A core objective of the process is to objectively assess individual knowledge and competencies. The use of AI tools or external assistance during live interviews or technical exercises is strictly prohibited (unless explicitly instructed otherwise) and will result in immediate disqualification.
• Interviews and technical sessions may be recorded for internal review to support fairness, consistency, and collaborative decision-making within the hiring team.