Python, Node.js, TypeScript | Vilnius

We are building an ambitious B2B SaaS product in the fields of architecture and spatial data. We are currently developing its technical core, combining complex data models, rule-based algorithms, 2D/3D environments, and AI integrations.

We are looking for an experienced backend engineer who can quickly get up to speed with complex systems, make sound technical decisions, and implement them independently. This is a hands-on role for someone who builds solutions independently and proactively suggests safe, practical ways to evolve the product’s core.

What you will do

• Build and maintain server-side logic, APIs, data models, databases, and external integrations.
• Work with a TypeScript / Node.js backend and Python processes for data processing, calculations, and AI integrations.
• Dive into the existing codebase, define technical priorities together with the product team, and propose how to evolve the system safely.
• Build automated tests, reliable deployment workflows, monitoring, and error logging.
• Implement secure authentication, user access control, project and document storage, and contribute to data protection at a technical level.
• Integrate AI solutions and evaluate their quality, speed, reliability, and cost.
• Work closely with the product team to clarify technical problems and deliver selected solutions.

What we expect

• Strong TypeScript and Node.js skills.
• Strong Python skills and experience with data processing, algorithms, or integrations.
• Experience building and maintaining backend systems, APIs, data models, and databases.
• Ability to quickly understand and safely improve an existing codebase.
• Experience with automated testing, deployment workflows, monitoring, and data protection.
• Ability to independently deliver functionality from idea to a working result.
• A pragmatic mindset and clear communication skills.
• Good English skills for working with technical documentation, tools, and integrations.

Nice to have

• Practical experience with ezdxf or other tools for reading, generating, or transforming DXF / CAD files.
• Experience with GIS, PostGIS, maps, or coordinate systems.
• Experience with AI model APIs, document analysis, RAG, or agentic systems.
• Experience with React or Next.js.

What we offer

• The opportunity to shape the technical core of a complex SaaS product.
• Challenging work combining backend systems, data, 2D/3D logic, and AI.
• A modern office at Yellowstone Business Centre in Vilnius.
• We prioritise close, in-person collaboration in Vilnius.

On behalf of our client, we are looking for a Senior iOS Software Engineer.

Abou the role:

The Senior iOS Software Engineer is responsible for the design, development, and maintenance of iOS Native software applications using Swift, SwiftUI and Objective-C. The iOS Software Engineer will be involved in all aspects of the software development life cycle, including requirement gathering, design, development, testing, and deployment. Strong technical skills and experience with Xcode are essential for this role. Good knowledge of Software Development Lifecycle, automated testing and DevOps stack are also important.

The iOS Software Engineer will also have to collaborate with other team members, including other software engineers, product managers, business analyst and stakeholders to deliver high-quality software on time.

Key Responsibilities: 

• Participating in agile ceremonies such as sprint planning, stand-up meetings, and retrospectives.
• Collaborating with other team members to gather and understand requirements for new features and enhancements. 
• Developing and maintaining iOS Native mobile applications using Swift, SwiftUI, Objective-C and Xcode. 
• Familiarity with RESTful APIs to connect iOS applications to back-end services. 
• Experience with iOS frameworks such as Core Data, Core Animation, etc. 
• Experience with performance and memory tuning with tools. 
• Understanding of Apple’s design principles and interface guidelines. 
• Familiarity with cloud message APIs and push notifications. 
• Writing unit tests and integration tests to ensure code quality and maintainability. 
• Proficient understanding of code versioning tools such as GIT. 
• Participating in code reviews and providing feedback to other team members. 
• Troubleshooting and debugging issues. 
• Continuously improving the software development process and practices. 
• Communicating with stakeholders and other team members to ensure project goals are met.
• Keeping up-to-date with the latest technologies and industry trends to improve the software and the development process.

Job Requirements:

• 5+ years of working experience in software development with Swift, SwiftUI, Objectice-C, Xcode.

Nice to Have Skills:  

• knowledge of Core Data, Core Animation, Azure, AWS, automated testing.

Company offers:

• Opportunity to be part of a global organization.
• Encouraging working atmosphere, engaging activities, and extra benefits (e.g. additional medical insurance (covers gym subscription), team events, outreach activities, and others);
• Hybrid work model with remote work opportunities ( 3/5 days weekly from the office)
• Open, modern, and ergonomic work environment when working from the office with the multicultural community.
• Opportunity to grow professionally and personally (e.g. Udemy) and continuously develop within the domain.- The salary range for this position is from **4.485 to 5.950 EURO gross before taxes.****Salary offer for the candidate is determined based on the predefined salary ranges for the position and depends on the level of competence and experience of the candidate. 

The Lead Senior Software Engineer is responsible for the design, development, and maintenance of software applications using JavaScript. This includes working with technologies such as JavaScript/TypeScript, NodeJs, Front-End Frameworks, databases and messaging systems. The Full Stack Engineer will be involved in all aspects of the software development life cycle, including requirement gathering, design, development, testing, and deployment. Strong technical skills and experience with both front-end and back-end development are essential for this role. Good knowledge of DDD design patterns, CQRS, and Clean Architecture is mandatory. They will also be able to collaborate with other team members, including other engineers, product managers, and stakeholders, to deliver high-quality software on time. Team leadership skills are required: technical or of a managerial type.

Responsibilities:

• Participating in, leading, and scheduling agile ceremonies such as sprint planning, stand-up meetings, and retrospectives.
• Collaborating with other team members to gather and understand requirements for new features and enhancements.
• Developing and maintaining front-end web components using React, TypeScript, HTML, and CSS.
• Designing and developing software using Node.js, GraphQL, and/or alternative JavaScript frameworks and middleware.
• Building and consuming RESTful web services and APIs.
• Writing unit tests and integration tests to ensure code quality and maintainability.
• Participating in code reviews and providing feedback to other team members.
• Troubleshooting and debugging issues.
• Continuously improving the software development process and practices.
• Communicating with stakeholders and other team members to ensure project goals are met.
• Keeping up-to-date with the latest technologies and industry trends to improve the software and the development process.

Requirements:

• +6 years of working experience with JavaScript, TypeScript, Node.js, React, HTML/CSS, SQL.
• Team leadership skills: technical or of a managerial type.
• CI/CD Pipelines, Message Brokers, ORM, GraphQL.
• Special kudos points for knowledge of vanilla JavaScript, V8, WebAssembly, and others.

We offer:

• Opportunity to be part of a global organization.
• Encouraging working atmosphere, engaging activities, and extra benefits (e.g., additional medical insurance (covers gym subscription), team events, outreach activities, and others).
• Hybrid work model with remote work opportunities ( 3/5 days weekly from the office).
• Open, modern, and ergonomic work environment when working from the office with the multicultural community.
• Opportunity to grow professionally and personally (e.g., Udemy) and continuously develop within the domain.

The salary range for this position is from 6000 to 7300 EURO gross before taxes.*Salary offer for the candidate is determined based on the predefined salary ranges for the position and depends on the level of competence and experience of the candidate.

AMBADAS CHAUDHARI Senior iOS Developer | Swift · SwiftUI · MVVM · UIKit · Logistics & Enterprise Apps Pune, Maharashtra, IN | +91-8208484322 | chaudhari.ambadas@gmail.com linkedin.com/in/ambadaschaudhari83133226 | github.com/ambadaschaudhari PROFESSIONAL SUMMARY Senior iOS Developer with 9+ years building production Swift/SwiftUI apps for logistics, cargo, and enterprise platforms. Deep expertise in MVVM architecture, modular codebase design, Core Data, Swift Concurrency (async/await), and RESTful API integration. Proven track record in logistics and cargo — having built and shipped production-grade apps including Oman Air Cargo and Indigo PO Mail Warehouse — along with healthcare mobile solutions. Combines strong mobile engineering skills with 19 years of total software development experience (including backend PHP/MySQL, CI/CD pipelines, and Agile/Scrum leadership). Adept at mentoring developers, driving code quality through reviews, and collaborating with cross-functional teams to deliver enterprise-grade products on time. CORE TECHNICAL SKILLS Languages: Swift (9 yrs), SwiftUI, Objective-C, PHP, MySQL Architecture: MVVM, MVC, VIPER, Modular Architecture, Clean Swift Frameworks: UIKit, Core Data, Combine, Swift Concurrency (async/await, actors), Alamofire, Firebase, Core Animation Tools & DevOps: Xcode, Instruments, Swift Package Manager (SPM), Git, CI/CD, Fastlane, TestFlight, JIRA, Agile / Scrum Testing: XCTest, XCUITest, Unit Testing, UI Testing Domains: Logistics & Cargo, Healthcare, Pet Health Management, Enterprise Mobile Integrations: RESTful APIs, Logistics APIs, Push Notifications (APNS), Cloud Services, Accessibility (VoiceOver / a11y) WORK EXPERIENCE Senior Mobility Engineer | QuantumID Technologies India Pvt Ltd Oct 2016 – Present | Pune, IN ● Architected and developed enterprise-grade iOS applications for logistics and cargo operations using Swift, SwiftUI, and UIKit, following MVVM architecture patterns across the full app lifecycle — shipping 5+ production apps to the App Store. ● Led a team of 4 iOS developers, conducting structured code reviews, architectural guidance, and best practice workshops in an Agile/Scrum environment. ● Re-engineered legacy Objective-C codebases into modern, modular Swift structures with Swift Package Manager (SPM), reducing onboarding time for new developers by ~40%. ● Adopted Swift Concurrency (async/await, actors) to replace callback-heavy patterns, improving code readability and eliminating data-race bugs in concurrent logistics workflows. ● Implemented Core Data for efficient offline-first data management and seamless cloud service synchronisation across logistics workflows. ● Championed CI/CD pipelines with Fastlane and TestFlight to automate build, test, and release processes, cutting release cycle time by ~30%. ● Collaborated with cross-functional teams (product, QA, backend) to integrate ML capabilities and third-party logistics APIs into mobile applications. ● Drove sprint planning, daily stand-ups, and retrospectives as senior technical contributor and team lead. Senior iOS Developer | Activ Doctors Online India Pvt Ltd / Active4Pets Jan 2016 – Oct 2016 | Pune, IN ● Designed and built advanced iOS applications for healthcare and pet health management platforms using Swift and MVVM architecture. ● Achieved a 30% reduction in app loading times through Instruments-based profiling and targeted refactoring. ● Integrated Alamofire for robust RESTful API communication and implemented Core Data for reliable local data persistence and sync. ● Wrote XCTest unit tests and XCUITest UI tests, covering critical edge cases and ensuring robust behaviour across iOS versions. ● Collaborated with UI/UX designers to deliver polished, accessible interfaces aligned with Apple Human Interface Guidelines, including VoiceOver (a11y) support. iOS Developer | Webwing Technologies Pvt. Ltd. Aug 2014 – Jan 2016 | Nashik, IN ● Developed and maintained iOS applications using Swift and Objective-C, contributing to full-cycle feature delivery from design to App Store submission. ● Collaborated with a cross-functional team to design, implement, and QA new features across multiple concurrent projects. ● Successfully delivered multiple iOS applications on time and within budget, building a solid foundation in mobile architecture and iOS SDK best practices. EARLIER EXPERIENCE Software Developer | PHP / MySQL / Backend 2005 – 2014 Progressed through backend/full-stack roles in Nashik, IN, building expertise in PHP, MySQL, and web application architecture that directly informs current API integration and offline-first data sync work on iOS. ○ Web Dream Works India Pvt Ltd — Software Engineer (Aug 2006 – Oct 2010) ○ Techiche Pvt Ltd — Senior Software Engineer (Nov 2010 – May 2012) ○ Toprock India Pvt Ltd — Senior Software Engineer (May 2012 – Mar 2014) KEY PROJECTS — LOGISTICS & ENTERPRISE Oman Air Cargo: End-to-end cargo booking platform with logistics API integrations, real-time tracking, and offline support. Published on App Store. (Swift · UIKit · Core Data · REST APIs) Indigo PO Mail Warehouse: Enterprise cargo operations app covering full warehouse lifecycle — booking, tracking, dispatch, and reporting. (Swift · MVVM · Cloud Services) Aerolineas Cargo: Cargo management iOS app for international airline operations, integrating complex logistics workflows. (Swift · SwiftUI · REST APIs) Active Doctors Online: Health information management platform for doctor-patient communication with secure data handling. (Swift · Core Data · APNS) Active4Pets: Pet health management app with appointment scheduling, vaccination tracking, and vet connect features. (Swift · Alamofire · Firebase) EDUCATION Bachelor of Technology, Computer Engineering Sanjivani College of Engineering / Pune University | 2001 – 2005

PROFESSIONAL SUMMARY: Senior Backend & Middleware Engineer with 15+ years of experience across Java application development, WebLogic middleware, and infrastructure engineering, delivering high-performance, scalable systems in banking, telecom, and eCommerce domains across the UK, Australia, US, and India. Deep expertise in Java/JVM internals, memory leak analysis, GC tuning, and production system performance, combined with strong experience in application servers, distributed systems, and backend architecture. Hands-on with Java, REST APIs, and modern backend development (Spring Boot, microservices), with the ability to bridge the gap between development and production systems—ensuring reliability, scalability, and performance in real-world environments. 

Programinės įrangos inžinierius, turintis beveik 10 metų patirties – nuo nedidelių svetainių iki didelės apimties įmonių sistemų. Pagrindinė patirtis sukaupta dirbant su PHP ir Symfony, MySQL, VueJS, REST API, ElasticSearch bei RabbitMQ; turiu Zend Certified PHP Engineer sertifikatą. Esu programavimo kalboms agnostiškas – renkuosi tą technologiją, kuri geriausiai tinka konkrečiai problemai, o ne tą, prie kurios labiausiai pripratęs. Be kasdienių užduočių, aktyviai prisidedu prie sistemų refaktoringo, architektūros sprendimų, naujų komandos narių mentorystės bei vidinių techninių pranešimų. Domiuosi dirbtiniu intelektu ir nuolat ieškau būdų jį pritaikyti tiek kasdieniame darbe, tiek kuriamuose produktuose.