Senior Front-end Developer (.NET/C#) Job at Citi (Toronto)

Senior UI Developer

We are looking for a senior UI developer proficient in React or .NET/C# to join ...

Location

Canada , Toronto

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

4+ years of relevant experience
Relevant working experience in Windows and Web UI Development
Proficiency in React and .Net/C#
Solid understanding of HTML5, CSS3, JavaScript, knowledge of test frameworks
Strong sense of responsibility, self-motivation, attention to details and a positive attitude

Job Responsibility

Design and deliver front end web applications based on business requirements
Responsible for completing Front-end design and coding in a timely manner by understanding user requirements
Solves complex technology problems / projects for the business unit supported
Tracks business unit performance against the IT business plan and service level agreements
identifies gaps
Appropriately assess risk when business decisions are made, demonstrating consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behaviors, conduct and business practices, and escalating, managing and reporting control issues with transparency

Fulltime

Digital Senior Full Stack Engineer

We've been helping our members save for their future and buy their own home sinc...

Location

United Kingdom , Leeds

Salary:

Not provided

Leeds Building Society

Expiration Date

Until further notice

Requirements

Deep expertise across React/TypeScript and .NET/C# with demonstrable architectural leadership
Significant experience in Software Development including accessibility
Expert in relevant strategic skills and tooling
proficient across the stack (front-end, APIs, back-end, data, cloud)
Experience using source control systems (e.g., Git, Bitbucket)
Strong experience building quality solutions using formal testing approaches including TDD, automated unit/integration testing, contract testing, structured manual testing where appropriate, automated system/UI testing, and performance testing
CI/CD craftsmanship (Azure DevOps/GitHub Actions or similar) with quality gates and environment parity
Proven record designing scalable, resilient systems
API design/versioning
clean architecture and DDD experience

Job Responsibility

Take technical ownership of customer-facing solutions, working across React/TypeScript and .NET/C# to design, build, test and run reliable, secure and scalable services
Lead complex technical delivery, champion modern engineering practices and help shape high-quality solutions through clean architecture, automation, CI/CD, observability and secure-by-default development
Coach and mentor other engineers, raise standards across the squad and define ways of working

What we offer

Hybrid working – 2 days per week in the office
Annual bonus of up to 12%
Matched pension contributions up to 10%
26 days holiday, plus bank holidays and holiday purchase scheme
Colleague Mortgage and Saver products
2 days' volunteering per year

Fulltime

Ui Developer (.Net/React)

We are looking for a senior UI developer proficient in .NET/C# to join teams tra...

Location

United Kingdom , Belfast

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

Relevant working experience in Windows and Web UI Development
Proficiency in .NET/C# and React
Solid understanding of HTML5, CSS3, JavaScript, knowledge of test frameworks
Strong sense of responsibility, self-motivation, attention to details and a positive attitude
Bachelor’s degree/University degree or equivalent experience

Job Responsibility

Design and deliver front end web applications based on business requirements
Responsible for completing Front-end design and coding in a timely manner by understanding user requirements
Solves complex technology problems / projects for the business unit supported
Tracks business unit performance against the IT business plan and service level agreements
identifies gaps
Appropriately assess risk when business decisions are made, demonstrating consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behaviours, conduct and business practices, and escalating, managing and reporting control issues with transparency
Conduct tasks related to feasibility studies, time and cost estimates, IT planning, risk technology, applications development, model development, and establish and implement new or revised applications systems and programs to meet specific business needs or user areas
Monitor and control all phases of development process and analysis, design, construction, testing, and implementation as well as provide user and operational support on applications to business users
Utilize in-depth specialty knowledge of applications development to analyze complex problems/issues, provide evaluation of business process, system process, and industry standards, and make evaluative judgement
Recommend and develop security measures in post implementation analysis of business usage to ensure successful system design and functionality

What we offer

27 days annual leave (plus bank holidays)
A discretional annual performance related bonus
Private Medical Care & Life Insurance
Employee Assistance Program
Pension Plan
Paid Parental Leave
Special discounts for employees, family, and friends
Access to an array of learning and development resources

Fulltime

(Senior) Software Engineer

We are expanding our development team in Tunis to strengthen our Supplier Manage...

Location

Tunisia , Tunis

Salary:

Not provided

Medius

Expiration Date

Until further notice

Requirements

5+ years of experience in backend or full-stack development (.NET/C# and React or modern front-end technologies).
Strong understanding of software architecture, performance optimization, and testing strategies.
Experience leading technical initiatives or mentoring developers.
Strong communication and collaboration skills with cross-functional teams.
Problem-solving mindset with a focus on scalability and reliability.
Excellent interpersonal and intercultural communication skills in English and French.

Job Responsibility

Lead and contribute to the technical delivery of complex product initiatives.
Ensure code quality, scalability, and maintainability across shared modules.
Collaborate closely with Product Managers to align technical priorities with business objectives.
Conduct code reviews, architecture discussions, and technical validations.
Mentor and support engineers, promoting best practices and a culture of ownership.
Work with QA and Platform teams to enhance performance, automation, and release reliability.
Contribute to key technical initiatives focused on improving system logic, automation, and overall performance.

Fulltime

Recruitment Sourcer (Tech)

As a Recruitment Sourcer, you'll be at the heart of Fever's talent strategy. You...

Location

Spain , Madrid

Salary:

Not provided

Fever

Expiration Date

Until further notice

Requirements

3+ years of experience in sourcing or talent acquisition, ideally within a fast-growing tech company
A natural hunter — finding hard-to-reach talent through unconventional means genuinely excites you
AI-first mindset: you embrace AI as a force multiplier for your work, proactively adopting new tools and workflows to improve sourcing effectiveness, productivity, and candidate engagement
Data-driven: you measure what you do, iterate fast, and can make a compelling case for your sourcing decisions
You communicate with clarity and warmth and your first message to a candidate reflects the quality of the brand you're representing
You thrive in ambiguity and can juggle multiple pipelines without losing focus or quality
Hands-on experience with ATS platforms — Greenhouse is a big plus
Strong organizational skills and an eye for patterns in the talent market
C1 or Native English and Spanish are required, additional languages are a plus

Job Responsibility

Build and execute creative sourcing strategies across multiple channels including LinkedIn, GitHub, communities, events, and referrals
Maintain proactive talent pipelines for current and future hiring needs across tech, data, and product roles
Map the competitive landscape to identify target companies where top talent is thriving and build strategies to engage them
Leverage AI-powered tools and workflows to enhance talent discovery, automate repetitive tasks, personalize candidate outreach at scale, and generate actionable insights from sourcing data
Engage passive candidates with compelling, personalized outreach that communicates what makes Fever different
Partner with recruiters and hiring managers to understand role requirements and continuously optimize sourcing approaches
Use data to track pipeline health, sourcing effectiveness, and conversion rates and act on what you find
Manage candidate records and pools in our ATS (Greenhouse), ensuring pipelines are clean, organized, and actionable
Keep a pulse on talent market trends and new sourcing tools and techniques
Contribute to employer branding initiatives, representing Fever at virtual events, e-meetups, and talent communities

What we offer

Attractive compensation package consisting of base salary and the potential to earn a significant bonus for top performance
Opportunity to have a real impact in a high-growth global category leader
40% discount on all Fever events and experiences
Home office friendly
Responsibility from day one and professional and personal growth
Great work environment with a young, international team of talented people to work with
Health insurance and other benefits such as Flexible remuneration with a 100% tax exemption through Cobee
English Lessons
Gympass Membership
Possibility to receive in advance part of your salary by Payflow

Fulltime

Guest Environment Expert

Our jobs aren’t just about giving guests a clean room and a freshly made bed. In...

Location

Malaysia , Desaru

Salary:

Not provided

Marriott Bonvoy

Expiration Date

Until further notice

Requirements

Ensuring a safe work place
following company policies and procedures
maintaining confidentiality
upholding quality standards
ensuring uniform, personal appearance, and communications are professional
standing, sitting, or walking for an extended time
moving, lifting, carrying, pushing, pulling, and placing objects weighing less than or equal to 50 pounds without assistance

Job Responsibility

Delivering guest requests
stocking carts
cleaning rooms and public spaces
maintaining appearance and cleanliness of the whole hotel
performing other reasonable job duties as requested

Fulltime

Mobile Associate, Store-in-Store, Bilingual

Mobile Associates, Store-in-Store are an integral part of the Retail Team respon...

Location

United States , San Marcos

Salary:

19.50 - 20.00 USD / Hour

T-Mobile

Expiration Date

Until further notice

Requirements

High School Diploma/GED (Required)
6 months of customer service and/or sales experience, Retail environment preferred. (Required)
Customer Satisfaction Passionate customer advocate with the desire to be yourself when connecting and having fun with our customers. Effective at balancing customer experience and performance goals. (Required)
Team Building Desire to be a part of the game-changing T-Mobile store team. Willingness to work alongside peers and store leaders, learning and sharing best practices, while serving customers and providing resolutions to issues. (Required)
Retail Sales Competitive drive and confidence to succeed in a fast-paced sales environment. (Required)
At least 18 years of age
Legally authorized to work in the United States

Job Responsibility

Proactively engages with a broad range of customers in a highly-traffic retail environment. You will use digital tools, communicate effectively, educate customers, and showcase the value of T-Mobile solutions
As a Mobile Associate, you will consistently leverage digital self-serve tools during customer interactions and the onboarding process. You will identify customer needs and use solution-based selling techniques to fully demonstrate the value of T-Mobile products and services. By recommending wireless solutions, and an onboarding solution centric to helping customers understand how to self-serve and utilize the T-Mobile app for wireless needs, you will deepen relationships with customers and ensure their satisfaction
Complete training on the T-Mobile in-store experience, new skills, products and processes, and knowledge of systems and reference resources. Review your personal results, current promotions, and updates on the Hub to be Customer Ready at all times. You will continuously learn and improve your skills to provide the best possible experience for our customers. Partner with nearby store locations to properly/fully on-board customers. Will perform skills practicing, knowledge sharing, store operations, opening and closing procedures. As part of these procedures, you will carry keys to the kiosk cabinets, lock/secure kiosk and assets, and report any lost keys or assets to your manager
Customer obsessed. You are passionate, friendly, and engaging with customers. You are able to connect on a personal level, match the pace of the customer, build rapport, trust, and loyalty with every interaction. You are committed to providing exceptional service, and to exceeding customer expectations. You will proactively reach out to potential customers to further drive sales activity in your location. You are able to follow up with customers, capture referrals, manage Be Back processes, and build relationships with new and existing customers. As part of your role, you will have the ability to perform price overrides for our specialty offers specific to National Retail
Builds relationships with nearby leadership and teams to help support the customer experience from account set up, to device support and account servicing

What we offer

Medical, dental and vision insurance
flexible spending account
401(k)
employee stock grants
employee stock purchase plan
paid time off
up to 12 paid holidays
paid parental and family leave
family building benefits
back-up care

Parttime

Retail Assistant Manager

The Retail Associate Manager works in partnership with the Store Manager to lead...

Location

United States , Quincy

Salary:

17.14 - 30.92 USD / Hour

T-Mobile

Expiration Date

Until further notice

Requirements

High School Diploma/GED (Required)
1 year customer service and/or sales experience, retail environment (Preferred)
At least 18 years of age
Legally authorized to work in the United States

Job Responsibility

Infuse every store's Mobile Experts with a passion for T-Mobile's Manifesto by orienting and grounding them to a standard of Loving Our Customers
Ensure that every need the customer has when coming into the store is met and that employees build the customer's confidence by making their experience comfortable, simple and by solving the whole problem
Complete observations of Mobile Experts' interactions with customers, including feedback, to be used in development, training & coaching conversations
Effectively manage customer wait time
Keep current on products, services and promotions
Lead by example, staying up to date on the latest products, services, training and leadership best practices to remain an expert resource to the team
Interact directly with Mobile Experts to ensure they meet and/or exceed defined, monthly success measurements completing assigned training on time
Assist in maintaining the quality of the overall store environment and adhere to national plan-o-gram standards
Use visual displays and interactive devices effectively
Keep visual displays and devices current

What we offer

Medical insurance
Dental insurance
Vision insurance
Flexible spending account
401(k)
Employee stock grants
Employee stock purchase plan
Paid time off
Up to 12 paid holidays
Paid parental and family leave

Fulltime

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Senior Front-end Developer (.NET/C#)

Job Description

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