Junior Software Engineer

onceLabs LLC; Chicago (IL); On-site; USD 70,000 - 90,000; Full time

Job summary

A technology company in Chicago is seeking a Junior Software Engineer to work on full-stack and mobile development projects. You will develop both iOS and Android applications, contributing to backend services, APIs, and cloud infrastructure. Strong problem-solving and communication skills are essential, along with at least 1 year of experience in mobile application development. A Bachelor's degree in a relevant field is preferred but equivalent experience will be considered.

Qualifications

• 1+ years experience in iOS or Android application development.
• Familiarity with mobile development design patterns like MVVM.
• Experience with backend technologies such as Spring Boot, Node.js, or Python.

Responsibilities

• Contribute to frontend and backend development of applications.
• Develop and maintain iOS and Android applications.
• Work on cloud-based backend services using Java, Node.js, or Python.

Skills

Problem-solving skills

Communication skills

Proficiency with git

Experience with mobile development

Knowledge of backend technologies

Experience with RESTful APIs

Education

Bachelor's or Master's degree in Computer Science, Electrical Engineering, or related discipline

Job description

Junior Software Engineer (Full-Stack & Mobile Development)

As a Junior Software Engineer, you will work on a variety of projects spanning full-stack development and mobile application development for both Android and iOS. You will also have the opportunity to work with Cloud platforms such as AWS IoT, contributing to both backend services and frontend development.

We are looking for individuals who are passionate about learning new skills and taking on challenges. As a growing company, we need team members who can adapt quickly, jump into projects as needed, and rapidly gain proficiency in new concepts.

Responsibilities

• Full‑Stack Development: Contribute to both frontend and backend development of web‑based applications, APIs, and cloud services.Mobil
• e Development:Devel
• op and maintain nativ e iOS applications and frameworks focu sed on wireless connectivity and control using SwiftDeve l
• op and maintain nativ e Android applications and frameworks focu sed on wireless connectivity and control using Kotli nBacke
• nd & Cloud Services:Work on cloud‑based backend services using Java (Spring Boot), Node.js, or Python.Deve l
• op and maintain RESTful APIs and WebSockets for real‑time communication. Imple ment datab se solutions (SQL and NoSQL) to support mobile and web applications. Assis t in configuring and managing AWS cloud infrastructure, inc luding services such as AWS IoT, Lambda, DynamoDB, and API Gateway. Assi t in defining and implementing robus t app architectures and compl ex user interfaces. Parti cipate in development planning, inc luding creating schedules and defining development tasks and timelines. Commu nicate and justify technical design decisions with management. Colla borate with desig ners, engineers, and product managers to build innovative and scalable products. Provi de on‑site training for VIP clients when required. Have the opportunity to work outside of embedded and mobile if you have interest.

Qualifications

• Organized and detail‑oriented with strong problem‑solving skills.Stong communication skills and ability to work in a team.Profi
• ciency with git and version control best practices.Minim
• um 1-year experience working with either iOS or Android native application development (personal projects count).Famil
• iarity with common mobile development design patterns such as MVVM. Exper
• ience with backend technologies such as Spring Boot, Node.js, or Python (preferred).Famil
• iacily with database technologies like PostgreSQL, MySQL, or MongoDB (preferred).Exper
• ience with RESTful APIs, GraphQL, and WebSockets (preferred).Under
• standing of offline storage, threading, and performance tuning (preferred).Stron
• g communication skills with an interest in mentoring and educating others.Expe
• rience with Bluetooth Low Energy, Wi‑Fi, Low Power Cellular, and other wireless technologies strongly desired but not required.At le
• ast some embedded development experience is a plus.Famil
• verity with test‑driven development (TDD) and agile methodologies (ap plus).Bache
• lor's or Master’s degree in Computer Science, Electrical Engineering, or related discipline is preferred, but equivalent experience will also be considered.

Notes

NO C2C CANDIDATES, DO NOT APPLY, WE WILL REJECT ALL C2C APPLICANTS