Frontend Developer

Kolkata, West Bengal, India

Contract, 3 months

Software Engineering & Technology

3 - 6 years

Job Description:

• 3 to 6 years of Proven work experience as a Front-end developer.
• Hands on experience with markup languages
• Proficient understanding of web markup, including HTML5, CSS3
• Experience with JavaScript, jQuery and should have the knowledge of advanced
• JavaScript libraries and frameworks, such as AngularJS, KnockoutJS, BackboneJS,

ReactJS, DurandalJS etc.
- Familiarity with browser testing and debugging
- In-depth understanding of the entire web development process (design, development

and deployment)
- Understanding of layout aesthetics
- Excellent analytical and multitasking skills
- Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASS
- Proficient understanding of client-side scripting and JavaScript frameworks, including

jQuery
- Basic knowledge of image authoring tools, to be able to crop, resize, or perform small adjustments on an image.
- Familiarity with tools such as as Gimp or Photoshop is a

plus.
- Good understanding of asynchronous request handling, partial page updates, and

AJAX
- Proficient understanding of code versioning tools, such as Git / SVN
- Added advantage given with knowledge in JAVA Swing, FX and NetBeans UI design.

Experience Range:

3 - 6 years

Educational Qualifications:

B.Tech/B.E

Job Responsibilities:

• Proficient understanding of client-side scripting and JavaScript frameworks, including

jQuery
- Basic knowledge of image authoring tools, to be able to crop, resize, or perform small adjustments on an image.
- Familiarity with tools such as as Gimp or Photoshop is a

plus.
- Good understanding of asynchronous request handling, partial page updates, and

AJAX
- Proficient understanding of code versioning tools, such as Git / SVN
- Added advantage given with knowledge in JAVA Swing, FX and NetBeans UI design.

Skills Required:

React js , AngularJS , KnockoutJS , BackboneJS , DurandalJS , HTML5 , CSS3 , Gimp or Photoshop , Git / SVN , AJAX

Job Code: KL-M3HNJSJQ

About Us

Mantra Labs is a global technology leader specializing in Digital, Data, AI, and Engineering, empowering fast-evolving enterprises to achieve transformational growth.

With best-in-class digital product engineering, technology transformation, and AI-driven solutions, we help Fortune 500 clients in BFSI, healthcare, and consumer internet sectors optimize digital infrastructure, enhance decision-making, and maximize operational efficiency. Our track record spans 200+ successful projects, consistently simplifying customer journeys and scaling businesses for unprecedented growth.

As a CMMI Level 3 and ISO 27001:2013 certified company, we are committed to innovation excellence. Partnered with AWS, Microsoft Azure, Google Cloud, Nvidia, IBM Watson, MongoDB, Rakuten, and Katalon, we deliver tailored, future-ready solutions for our clients to tackle the complex business challenges of tomorrow head-on.

Key Clients: AbbVie Pharmaceuticals, SAAB, PACE Industries, American Auto Club, Change Healthcare, Green Brilliance, ICICI Lombard General Insurance, SBI General Insurance, Care Health Insurance, Pramerica, Aditya Birla Health, AIA Hong Kong, and more.

Why Us?

We are Technology Tinkerers and Experimenters. Building intuitive solutions for our Clients has led to significant milestones over the last 14 years.

The driving force behind Mantra is its team of change agents who focus on practical applications of the latest technologies.

You will find us often having animated debates over Node vs Java or RDBMS vs NoSQL Dbs. Geekiness is our thing and we absolutely love it Freedom at work is at the core of what we aspire to do.

Be it project parties, team outings, or free Coffee We like to celebrate our life in the office. Our cricket team trains regularly while TT acts as a quick stress-buster on a hectic day.

Our internal library has books from multiple genres to help Mantriks declutter their minds.

We have a certification policy to help our employees learn while they earn.

Our Knowledge sharing sessions include hackathons, training, trivia, quizzes, and presentations to help our employees upgrade their skills.

We have a trust-based leave policy where all the leaves are allotted in one go. No accrual business.

We take our Annual Trip very seriously - be it a weekend in Sakleshpur or Gokarna - the whole company goes as one.