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Senior Full-Stack Engineer, Internal Applications

cohere

Remoto Toronto
Fullstack

Job Score

100 pts
Remote model (+90) Fullstack (+10)

Who are we?

Cohere is the leading security-first enterprise AI company. We build cutting-edge foundation AI models and end-to-end products that are designed to solve real-world business problems.

We’re training and deploying frontier models for enterprises who are building AI systems. We believe that our work is instrumental to the widespread adoption of AI and we are looking for folks that want to be part of that.

We obsess over what we build. Each one of us is responsible for contributing to increasing the capabilities of our models and the value they drive for our customers. Cohere is a team of researchers, engineers, designers, and more, who are all passionate about their craft.

We are a global technology company headquartered in Toronto with key offices in London, New York City, San Francisco, Montreal, Paris, Berlin and Seoul. Join us!

Why this role?

This role is for people who love building tools for their coworkers. The Internal Applications team creates tools that help us create better models. In this role you will collaborate with internal stakeholders, which include annotators, ML researchers, product managers and more. Join our team of builders who create tooling that will pave the way for the next generation of large language models!

As a Full-Stack Software Engineer on the Internal Applications team, you will:

  • Work with a small talented and enthusiastic team of software engineers

  • Contribute to delightful experiences for our user-facing products, meticulously crafting code for browsers and servers

  • Collaborate and grow with your engineering colleagues of all levels through direct pairing sessions, architectural designs, documentation and talks

  • Identify and remove roadblocks to enable your team to increase its engineering velocity.

  • Build resilient systems that are mission-critical

  • Keep up with the cutting edge and adopt new technologies to improve performance and reliability

You may be a good fit if:

  • You have experience shipping products with a large number of stakeholders

  • You’re comfortable with the front and back end of the stack, and have previously worked with Next.js, TypeScript, React, and Python

  • You have hands-on experience with complex SQL queries

  • You have excellent communication skills and believe that documentation is a great way to get feedback and discuss technical implementations and designs

  • You’re excited to add new technologies to your toolbox and use them where it makes sense

  • You have the ability to take complex needs and goals and develop easy to understand explanations for all audiences

  • You’re excited about AI and have the motivation to scale a company

Full-Time Employees at Cohere enjoy these Perks:

  • A weekly lunch stipend of $75/£75 or equivalent in your local currency for lunch.

  • Full health and dental benefits, including a separate budget for mental health.

  • RRSP matching, 401K, Pension Scheme.

  • 100% Parental Leave top-up for up to 6 months, for either parent.

  • Annual enrichment benefits:

    Arts & culture, fitness/wellness, quality time, and a workspace improvement credit.

    Education & learning stipend for conferences, courses, and coaching.

  • 6 weeks of paid vacation (30 working days!)

  • Budget for traveling to other offices if you are remote, plus an annual company offsite.

How and Where We Work:

  • Cohere is remote-friendly, but we also have offices in Toronto, London, New York City, San Francisco, Montreal, Paris, Berlin and Seoul with more opening soon.

  • For those in the office: a daily lunch program, plenty of snacks, and regular community and social events.

  • For those not near an office: a co-working benefit so you can work alongside others in your city.

  • Everyone receives a $500 home office stipend to set up your workspace properly.

If any of the above doesn’t line up exactly with your experience, we still encourage you to apply.


We strive to create an inclusive work environment for all; we welcome applicants from all backgrounds and are committed to providing equal opportunities. Should you require any accommodations during the recruitment process, please submit an Accommodations Request Form, and we will work together to meet your needs.

We may use AI-enabled tools to screen and assess applicants against the criteria for this position. This helps our recruiters identify potentially qualified candidates, but it doesn't limit the applications our recruiters may review or consider.

Beware of Scams: Cohere will never ask for payment or third-party services (e.g., CV writing) as part of our hiring process. All legitimate roles are listed on the Cohere careers page and LinkedIn only, with all communications from Cohere employees coming from an @cohere.com or @cw.cohere email alias. If jobs are viewed on other sites then please verify these through our official careers page.

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About Fullstack

Fullstack developers are versatile professionals capable of working on both frontend and backend of web and mobile applications. They master multiple technologies and can build complete products end-to-end, from the user interface to server infrastructure.

Key skills include proficiency in at least one complete stack (React/Vue/Angular + Node.js/PHP/Python/Java), databases (SQL and NoSQL), REST/GraphQL APIs, Git versioning, CI/CD, and basic infrastructure knowledge (Docker, cloud). Clean architecture, DDD, and testing are important differentiators.

Fullstack developers are highly valued in startups and companies that need versatile and autonomous professionals. The field offers opportunities from junior developer to software architect, with a focus on complete delivery, holistic product vision, and ability to work across multiple application layers.

Discover Other Areas

Understand the scope of work, key skills, and tools used in different career areas.

About Customer Success

Customer Success is the area responsible for ensuring clients achieve their goals when using the product or service. It is a strategic function for retention, expansion, and customer satisfaction.

Key skills include account management, churn analysis, NPS, onboarding, upsell, and cross-sell. Knowledge of CS tools like Gainsight, Totango, and ChurnZero is a differentiator.

CS is becoming increasingly strategic in SaaS companies, with professionals directly contributing to recurring revenue growth (MRR/ARR).

About Advertising

The Advertising area is aimed at the planning, creation, and delivery of communication campaigns to promote brands, products, ideas, or services. Professionals in the sector work in advertising agencies or in-house marketing departments in creative fields (art direction, copywriting), strategic planning, account management, and media buying.

About Business Intelligence

Business Intelligence (BI) is the area responsible for transforming raw data into strategic information for decision-making. BI professionals build dashboards, reports, and analyses that help companies understand their performance and identify growth opportunities.

Key skills include data modeling (star schema, snowflake), ETL (extraction, transformation, loading), advanced SQL, BI tools (Power BI, Tableau, Looker), data warehousing, KPIs, and business metrics analysis (MRR, churn, cohort). Knowledge of dbt, Airflow, and data pipelines is a differentiator.

BI professionals in technology companies are highly valued, especially those who master data visualization, analytics engineering, and can translate complex data into actionable insights for the business. The field offers opportunities from BI analyst to head of data, with a focus on data-driven decision making.

About Content

The Content and Social Media area is essential for building digital presence and audience engagement. Professionals create content strategies, manage social networks, and develop impactful brand narratives.

Key skills include copywriting, storytelling, community management, metrics analysis, audiovisual production, and knowledge of each platform algorithms.

With the growth of influencer marketing and social commerce, this area continues to generate new career opportunities.

About Communications

The Communications area is strategic for building and maintaining a company's institutional image. It encompasses corporate, internal, and external communication, public relations, press office, and reputation management. Communications professionals are responsible for delivering consistent messages that strengthen the employer brand and market positioning.

Key skills include strategic writing, communication planning, crisis management, media relations, corporate content production, event organization, and digital communication. Knowledge of communication CRMs, press release distribution platforms, and media monitoring tools (Meltwater, Cision) is a differentiator.

Corporate communicators in technology companies are highly valued, especially those who master change communication, employee engagement, and digital communication. The field offers opportunities in startups, scale-ups, and large corporations, with a focus on storytelling, organizational culture, and innovation communication.

Career Guides

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Design Career Guide

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Marketing Career Guide

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Finance Career Guide

Financial market, investments, corporate finance, certifications, and strategies to grow in the financial field.

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Communication Career Guide

Journalism, PR, Corporate Communication, Content Marketing, and Multimedia Production.

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Administration Career Guide

Business Management, HR, Logistics, Consulting, Project Management, and Entrepreneurship.

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Data Career Guide

Data Science, Data Engineering, BI, Machine Learning, and AI. From training to the job market.

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Product Career Guide

Product Management, Product Ownership, Agile, Scrum, and OKRs. From strategy to execution.

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Tech & Remote Glossary

Stop getting lost in interviews and job descriptions

The job market, especially within tech and global companies, has developed its own dialect. Not understanding these acronyms can make you lose valuable opportunities or poorly negotiate your contract. To end this problem, we created the Definitive Glossary for the Remote Professional.

🏢 Work Models & Routine

Async (Asynchronous Work)
A communication model where responses don't need to be immediate. Instead of back-to-back meetings, the team relies on well-structured documents, threads, and messages. It's the gold standard for global companies spanning multiple time zones.
Sync (Synchronous Work)
The opposite of Async. It requires the team to be online and available at the same time for meetings, live chats, and real-time collaboration.
Daily / Stand-up
A quick daily meeting (usually 15 minutes) common in Agile (Scrum) methodologies. The team answers three questions: What did I do yesterday? What will I do today? Are there any blockers?
All-Hands / Town Hall
A company-wide meeting involving all employees. Usually led by the founders (C-Levels) to present results, new goals, and answer team questions.
1:1 (One-on-One)
A recurring individual meeting between a professional and their direct manager. It is used for career alignment, feedback, and problem-solving, not just for project status updates.

💰 Contracts, Benefits & Compensation

PTO (Paid Time Off)
Instead of strict, categorized leave policies, modern US companies usually offer a flexible pool of days (e.g., 20 days of PTO, or even "Unlimited PTO") that you can use for vacations, sick days, or personal matters, while receiving your regular compensation.
Equity / Stock Options
Company ownership. The startup offers you the right to buy shares at a heavily discounted strike price in the future. If the company grows, goes public, or is acquired, these shares can be highly lucrative.
Vesting (Vesting Schedule)
The rule that controls your Equity. It usually lasts 4 years. You don't get all the shares on day one; you "earn" them gradually as you stay with the company. A "1-year Cliff" means you must stay for at least one year to receive your first batch of shares.
RSUs (Restricted Stock Units)
Unlike Stock Options (where you have the right to buy the stock), RSUs are actual shares the company grants you as a bonus or part of your compensation package, following a strict Vesting schedule.
Independent Contractor (1099 / B2B)
The most common international hiring model for global talent working for US companies. You act as a service provider (business-to-business), receiving the gross salary (often six-figure compensation) without standard local payroll tax deductions at the source.

🤖 Recruitment & Hiring Process

ATS (Applicant Tracking System)
The "robot" that reads your resume. Software like Greenhouse, Ashby, and Workday are used to filter candidates by keywords before a human even looks at the document. (Pro tip: this is why your resume must be clean, semantic, and have the right keywords).
JD (Job Description)
The document that lists the responsibilities, technical requirements, and benefits of the open position.
Cultural Fit
The interview stage that evaluates if your core values, communication style, and worldview align with the company's culture. This is the ultimate test of your Soft Skills.
Onboarding
The integration process. It's the period of your first few weeks at the company, where you get your access credentials, learn about the culture, study the internal documentation, and understand how the product works.

🚀 How to use this to your advantage?

The secret isn't just knowing what these acronyms mean, but using them actively. If during an interview for a premium tech role you ask, "How does your PTO policy and Vesting schedule work?", the recruiter will immediately perceive you as a high-level professional, familiar with the global market standards.

The remote job market requires preparation. And having the right vocabulary is the first big step to securing six-figure proposals and standing out among thousands of applicants.

Expert Tip

The Ultimate Guide to Global E-commerce

The Ultimate Guide to Global E-commerce: Careers, Technology, and the Best Opportunities

By Mondywork | Career and Technology Insights

How borderless digital commerce is shaping the future of work and creating high-value, six-figure roles for Managers and Engineers.

1. The Current Landscape of Global E-commerce

E-commerce is no longer just a "digital storefront"; it has become the core revenue engine for the world's biggest brands. According to projections by eMarketer, global retail e-commerce sales continue to break records, easily surpassing the multi-trillion-dollar mark annually.

Today, the market thrives in the era of Cross-Border Commerce, where consumers buy from brands across continents with the same ease as a local purchase. To sustain this massive operation, companies are investing heavily in cloud infrastructure, data-driven smart logistics, and modern tech architectures like Headless Commerce — where the front-end (user interface) is completely decoupled from the back-end (sales engine), ensuring lightning-fast loading speeds and highly personalized experiences.

2. The Pillars of the Operation: Who Makes E-commerce Happen?

Behind every "1-Click Buy" button, there is a complex engineering structure bridging business and technology. Two fundamental professionals stand out in this ecosystem:

The E-commerce Manager

This is the strategic brain of the business. The E-commerce Manager isn't just a digital inventory keeper; they are performance analysts obsessed with metrics and growth.

  • Core Responsibilities: Conversion Rate Optimization (CRO), P&L (Profit and Loss) management, catalog curation, dynamic pricing, and coordinating traffic campaigns alongside the Marketing team.
  • Key Metrics: CAC (Customer Acquisition Cost), LTV (Lifetime Value), ROAS (Return on Ad Spend), and Churn Rate.
  • Ideal Profile: Highly analytical, data-driven, with strong cross-departmental leadership skills (uniting logistics, marketing, and tech).

The E-commerce Engineer (Developer)

The technological arm and executor of the business vision. Developers focused on e-commerce are highly valued because they understand that every millisecond of latency in the code translates to lost revenue.

  • Core Responsibilities: Building and maintaining storefronts, complex API integrations (ERPs, CRMs, Payment Gateways, and shipping providers), developing custom themes, and ensuring information security (PCI Compliance).
  • Tech Stack: Varies by platform, but mastering JavaScript (React/Next.js for Headless), Node.js, GraphQL, and specific template languages (like Liquid for Shopify) is essential.
  • Ideal Profile: Technical problem-solver with a strong business acumen, deeply focused on Web Performance (Core Web Vitals) and scalability.

3. The Biggest Market Players (SaaS and PaaS Platforms)

To succeed in this field, it is crucial to master or be deeply familiar with the giants that power virtual stores globally:

Shopify / Shopify Plus:
The Canadian giant dominates the global SaaS market. With a massive app ecosystem and Liquid as its template language, Shopify Plus is the go-to choice for scalable enterprise brands. Shopify Developers are in incredibly high demand across the US and European markets.
VTEX:
A Latin American powerhouse that became a formidable global player, now listed on the NYSE. The VTEX IO architecture, based on React and Node.js, changed the game for Enterprise development. VTEX Managers and Devs have guaranteed opportunities in large B2B and B2C corporations.
Magento (Adobe Commerce):
Known for its extreme robustness and flexibility (PaaS/On-Premise). It requires solid knowledge of PHP and complex software architecture. It is the platform of choice for massive, highly customized operations.
Salesforce Commerce Cloud:
Aimed at the top of the pyramid (large enterprise accounts), it integrates seamlessly into the Salesforce CRM ecosystem, requiring highly specialized professionals versed in its proprietary languages and corporate processes.

4. Where Are the Best Opportunities and How to Break In?

The e-commerce market is one of the biggest hubs for global remote jobs. US and European companies are actively seeking top-tier talent worldwide, offering aggressive compensation (often six-figure salaries in USD or EUR) to professionals who can scale their operations.

For those looking to enter or pivot to this area:

  1. Specialize in a Platform: Being a "Generic Developer" pays the bills, but being a "VTEX IO Specialist" or a "Shopify Expert" multiplies your market value. Pursue official certifications.
  2. Master APIs and Integrations: Modern e-commerce doesn't live in a vacuum. Knowing how to connect a store to a logistics system, a marketing automation software (like Klaviyo or Brevo), or a global ERP is the most valued skill today.
  3. Build a Real Portfolio: For devs, create test stores, build a public app for the Shopify App Store, or contribute to Headless projects. For managers, showcase real conversion optimization cases and campaign management on your LinkedIn.
  4. Flawless Technical Communication: Fluent English (especially asynchronous communication for documentation, Jira tickets, and Slack) is the golden key to unlocking those US Remote and global six-figure roles.
"In e-commerce, the code isn't just software; it's the store itself. If the site crashes on Black Friday, the company bleeds money. That's why highly qualified professionals in this field are never out of work."

Accelerate Your Career with Mondywork

Whether you are a business strategist or a software engineer, the best E-commerce and Tech jobs—including global remote opportunities—are published daily on our board.

Golden Tip: Browse the Mondywork platform, set up your customized Job Alerts on our homepage, and ensure your resume highlights the technologies mentioned in this article. The market won't wait, and your next big global opportunity might be just one click away.