102 Best Unit Testing Contractor Developers For Hire In July 2025

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selected:

framework:

+ React JS (98) + Node JS (88) + Next JS (70) + Sencha Ext JS (70) + Express JS (66) + jQuery (45) + Angular JS (37) + Vue JS (33)

language:

+ TypeScript (88) + JavaScript (75) + Vanilla JS (74) + Python (34) + Java (23) + C# (20) + PHP (19) + .NET (15)

utility:

+ JSON (71) + Jest JS (49) + Redux JS (30) + GraphQL JS (28) + Cypress JS (23)

ui:

+ CSS (71) + Tailwind CSS (37) + EJS (27) + bootstrap (20) + Lit JS (20) + SASS (19) + SCSS (16) + Material UI (11) + Storybook JS (11)

career:

+ Mid Level (52) + Senior (51) + Junior (46) + Manager (9)

stack:

+ Front End (95) + Full Stack (75) + Back End (58)

db:

+ SQL (61) + MongoDB (59) + Postgres (PostgreSQL) (34) + MySQL (32) + Firebase (10)

server:

+ AWS (34) + docker (34) + Linux (17) + Amazon SES (12) + AWS S3 (9) + AWS EC2 (5) + Google Cloud (5) + Heroku (5) + kubernetes (5)

program:

+ Git (82) + Jira (33) + GitHub (25) + Figma (14) + VS Code (11) + Postman (9) + Prisma (6)

concept:

+ HTML (61) + api (50) + Rest API (44) + software (40) + mobile app (35)

speaking:

+ English (101) + Spanish (10) + Portuguese (6) + Russian (6) + German (5)

worker type:

+ full time (93) + freelance (83)

us state:

+ California (5) + Florida (5) + New York (5)

country:

+ United States (47) + Canada (7) + Brazil (6)

country region:

+ North America (54) + Eastern Europe (12) + Asia (11) + Europe (11) + South America (8) + South Asia (6) + Western Europe (6)

Filters:

selected:

unit testing [ x ] contractor [ x ]

framework:

+ React JS (98) + Node JS (88) + Next JS (70) + Sencha Ext JS (70) + Express JS (66) + jQuery (45) + Angular JS (37) + Vue JS (33)

language:

+ TypeScript (88) + JavaScript (75) + Vanilla JS (74) + Python (34) + Java (23) + C# (20) + PHP (19) + .NET (15)

utility:

+ JSON (71) + Jest JS (49) + Redux JS (30) + GraphQL JS (28) + Cypress JS (23)

ui:

+ CSS (71) + Tailwind CSS (37) + EJS (27) + bootstrap (20) + Lit JS (20) + SASS (19) + SCSS (16) + Material UI (11) + Storybook JS (11)

career:

+ Mid Level (52) + Senior (51) + Junior (46) + Manager (9)

stack:

+ Front End (95) + Full Stack (75) + Back End (58)

db:

+ SQL (61) + MongoDB (59) + Postgres (PostgreSQL) (34) + MySQL (32) + Firebase (10)

server:

+ AWS (34) + docker (34) + Linux (17) + Amazon SES (12) + AWS S3 (9) + AWS EC2 (5) + Google Cloud (5) + Heroku (5) + kubernetes (5)

program:

+ Git (82) + Jira (33) + GitHub (25) + Figma (14) + VS Code (11) + Postman (9) + Prisma (6)

concept:

+ HTML (61) + api (50) + Rest API (44) + software (40) + mobile app (35)

speaking:

+ English (101) + Spanish (10) + Portuguese (6) + Russian (6) + German (5)

worker type:

+ full time (93) + freelance (83)

us state:

+ California (5) + Florida (5) + New York (5)

country:

+ United States (47) + Canada (7) + Brazil (6)

country region:

+ North America (54) + Eastern Europe (12) + Asia (11) + Europe (11) + South America (8) + South Asia (6) + Western Europe (6)

Timezone:

(includes +1/-1 hour)

Featured Unit Testing Contractor Developers

61 to 80 of 102 devs ( view all 1655 devs )

Desenvolvedora de software

Pelotas, RS, Brazil or remote

Desenvolvedora de software pleno, com experiência front-end e mobile em aplicações de grande tráfego. Tenho sólidos conhecimentos em JavaScript,...

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Fullstack Developer

Goiania, GO, Brazil or remote

I'm a software developer with over 7 years of experience in the development of mobile and web...

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Lead Software Engineer

Orlando, Florida, US or remote

M*rsm*tics...

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Software Engineer

Berlin, Germany or remote

I've worked for scale ups and startups as a software engineer, in the logistics, ecommerce, and publishing/research...

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Frontend Developer (React/ReactNative)

Kathmandu, Nepal or remote

Software engineer with 5+ years of professional experience in a wide range of software development technologies; Value Ownership, Integrity and...

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Senior JavaScript Developer

Cracow, Poland or remote

11/2022 - 11/2023 Senior JavaScript Developer Kinsta • Collaborating within a 10-member Analytics Team. • Creating domain-specific charts...

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Full Stack Developer

Kutaisi, Imereti, Georgia or remote

Freelance Developer (Current) Projects: IconGeneratorAI: Built a solo project for generating AI-based icons. Used various AI APIs for art...

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React Next.JS Front-end developer

Cape Town, Western Cape, South Africa or remote

I'm a front-end developer based in beautiful Cape Town, South Africa. I'm passionate about continuously learning and honing my skills, working with...

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Front-End Software Engineer

Al-Karak, Jordan or remote

Experience Qarora, Remotely – Software Engineer (internship) 05/2023 - 9/2023 Achievements/Tasks Built a website using (ISR) technique ready...

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Junior Software Engineer

BURNABY, BRITISH COLUMBIA, Canada or remote

During my personal time i've developed a Create Recipe App, Weather App, and Messenger Chat App. One of the challenges i've faced when developing my...

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Front-end Developer

Chino Hills, California, US or remote

Deepgram, Inc. (2022 - 2023), Remote Software Engineer Tech Stack: Elm.js, TailwindCSS, Vite - Delivered features for the Console app in...

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Frontend Engineer

Cluj-Napoca, Cluj, Romania or remote

I am a passionate Frontend Engineer who’s also tackling full-stack intricacies with over 3 years of experience in refining, developing, and...

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Frontend Developer - React | Angular

Chennai, Tamil Nadu, India or remote

Frontend Engineer Outlier.org - Developed course websites using ReactJS for the online education platform. Utilized Test-Driven Development (TDD)...

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Software Engineer

Springfield, Illinois, US or remote

BetterCloud Senior Software Engineer April/2022 to Present Technologies used: Google Cloud Platform infrastructure, Node JS, Express JS,...

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Web Developer

Manila, Philippines or remote

> Developed the restructured registration and login system which implements Okta service > Migrated NodeJS codes to Apigee API management platform...

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Software Engineer

Cluj-Napoca, Romania or remote

-Education: I have a Bachelor's Degree in Computer Science and I am pursuing a Master's Degree in Software Engineering. -Work experience:...

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Full Stack Developer - 25+ Years

Penetanguishene, Ontario, Canada or remote

Creating project with JavaScript for over 25 years. IOU Snack debt tracker that was used at several companies. A ecommerce site for Scotia Bank to...

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Entry Level Full Stack Developer

Navi Mumbai, Maharashtra, India or remote

Built many responsive full-stack web applications with fully-fledged features such as password-based authentication and media upload using standard...

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