C#.NET Software engineer - Trading applications Job at Talan (New York)

Principal Full Stack Software Engineer

We're looking for a Principal Full Stack Software Engineer to join our team, foc...

Location

Poland , Gdańsk

Salary:

324000.00 - 433200.00 PLN / Year

Atlassian

Expiration Date

Until further notice

Requirements

10+ years in a software development team with strong fundamental software development skills
Experience with .NET Framework (C#)
Proficiency in web-based applications, architecture, and REST API integration
Experience in resolving customer issues through code error diagnosis, debugging, validation, and root cause analysis
Strong knowledge of HTML, CSS, JavaScript, jQuery, and browser/JavaScript fundamentals (React is a plus)
Familiarity with scripting languages and databases such as MSSQL and Postgres
Security-conscious approach to development
Experience in product experimentation and a track record of delivering value to customers

Job Responsibility

Understand the user journey and funnel to enhance Jira Align product strategy and direction by collaborating with product, design, and engineering teams
Guide the technical direction for implementing large-scale product features, evaluating trade-offs between correctness, robustness, performance, and customer impact to ensure optimal solutions
Debug team inefficiencies and ship well-tested, secure, reliable, and maintainable code, always prioritizing customer interests
Contribute to code reviews, documentation, and complex bug fixes with a focus on security, performance, and reliability
Mentor teammates to improve their skills and the overall growth of the engineering team, identifying blockers to ensure software engineering excellence in design principles, unit testing, performance engineering, and best practices for security and privacy

What we offer

This role may also be eligible for benefits, bonuses, commissions, and equity

Fulltime

Senior Application Developer

Embark on a transformative journey as a Senior Application Developer. At Barclay...

Location

United States , Whippany

Salary:

120000.00 - 175000.00 USD / Year

Barclays

Expiration Date

Until further notice

Requirements

Developing C# applications using .NET WinForms and WPF
Building GUI applications using MVP or MVVM design patterns
Applying data structures and algorithms in performance-sensitive systems
Profiling memory usage and improving application performance
Writing and maintaining unit tests

Job Responsibility

Development and delivery of high-quality software solutions by using industry aligned programming languages, frameworks, and tools. Ensuring that code is scalable, maintainable, and optimized for performance
Cross-functional collaboration with product managers, designers, and other engineers to define software requirements, devise solution strategies, and ensure seamless integration and alignment with business objectives
Collaboration with peers, participate in code reviews, and promote a culture of code quality and knowledge sharing
Stay informed of industry technology trends and innovations and actively contribute to the organization’s technology communities to foster a culture of technical excellence and growth
Adherence to secure coding practices to mitigate vulnerabilities, protect sensitive data, and ensure secure software solutions
Implementation of effective unit testing practices to ensure proper code design, readability, and reliability

What we offer

Medical, dental and vision coverage
401(k)
Life insurance
Other paid leave for qualifying circumstances
Competitive holiday allowance
Life assurance
Private medical care
Pension contribution

Fulltime

Senior Full Stack Developer

Embark on a transformative journey as a Senior Full Stack Developer. At Barclays...

Location

United States , Whippany

Salary:

170000.00 - 230000.00 USD / Year

Barclays

Expiration Date

Until further notice

Requirements

Developing C# applications using .NET WinForms and WPF for trading or complex desktop platforms
Designing and building GUI applications using MVP or MVVM patterns
Applying data structures and algorithms within performance-sensitive systems
Designing and architecting system components across multiple applications
Profiling memory usage, tuning performance, and supporting unit testing practices

Job Responsibility

Development and delivery of high-quality software solutions by using industry aligned programming languages, frameworks, and tools. Ensuring that code is scalable, maintainable, and optimized for performance
Cross-functional collaboration with product managers, designers, and other engineers to define software requirements, devise solution strategies, and ensure seamless integration and alignment with business objectives
Collaboration with peers, participate in code reviews, and promote a culture of code quality and knowledge sharing
Stay informed of industry technology trends and innovations and actively contribute to the organization’s technology communities to foster a culture of technical excellence and growth
Adherence to secure coding practices to mitigate vulnerabilities, protect sensitive data, and ensure secure software solutions
Implementation of effective unit testing practices to ensure proper code design, readability, and reliability

What we offer

medical, dental and vision coverage
401(k)
life insurance
other paid leave for qualifying circumstances
incentive award
Competitive holiday allowance
Life assurance
Private medical care
Pension contribution

Fulltime

New

Senior Full-Stack Engineer

As a Senior Full-Stack Engineer, you will design, build, and deliver cutting-edg...

Location

Poland , Gdańsk

Salary:

Not provided

Mastercard

Expiration Date

Until further notice

Requirements

5+ years of software engineering experience, with proven expertise across backend and frontend development
Strong skills in .NET
Proficiency in React
Experience working with RESTful APIs, microservices, and cloud environments (AWS, GCP, or Azure)
Solid understanding of UI/UX principles, responsive design, and accessibility standards
Experience collaborating with designers and product teams to bring user-centric solutions to market
Knowledge of modern software engineering practices: CI/CD, automated testing, code reviews, Agile/Scrum
Excellent communication and stakeholder management skills
Accountable, detail-oriented, proactive, and able to work independently in a fast-paced environment

Job Responsibility

Plan, design, and develop full-stack solutions that meet business requirements while adhering to Mastercard’s standards, processes, and best practices
Collaborate with UI/UX designers to implement responsive, accessible user interfaces with React
Ensure front-end applications meet WCAG accessibility guidelines, deliver great performance, and are optimised for multiple devices
Build and maintain scalable backend services and APIs, integrating with Mastercard’s Open Finance ecosystem
Ensure high code quality with unit/integration testing, peer reviews, and continuous integration
Contribute to the full software development life cycle, from requirements gathering to release and ongoing support
Troubleshoot, debug, and resolve production issues, ensuring service reliability and performance
Mentor junior engineers and promote knowledge sharing across the team
Partner with product owners and stakeholders to prioritise features, communicate progress, and manage trade-offs
Stay current with industry trends, frameworks, and best practices in both frontend and backend technologies

Fulltime

Applications Development Sr Programmer Analyst

The Rates Data Services Technology Team is responsible for the management and de...

Location

Canada , Mississauga

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

5-8 years demonstrable and relevant SLDC experience
Solid understanding of Java/Spring stack development
Beneficial understanding of C#, .Net Core 3.*+ (VS 2017 or above)
Useful understanding of Python 3.6 or above, python frameworks and libraries, including Pytest, Pandas, Flask, and Kafka
Solid understanding of REST API development
Experience with design and implementation of cloud-ready applications and deployment via Kubernetes/Openshift
Experience with big data computation platforms (Flink, Spark, Apache Beam) or big data distribution platforms (Hadoop, Gemfire, Ignite)
Hands-on experience in handling various data structures
Good understanding of Data modeling, partitioning and sharing of huge data sets
Experience working on a Continuous Integration and Continuous Delivery environment

Job Responsibility

Design and develop critical data applications to support trading and risk management for a Tier 1 bank
Collaborate with business partners and other technology teams in the Rates and wider Markets businesses
Promote and follow engineering best practices
Apply an engineering mindset to development work: understand use-cases in detail, develop metrics to build good estimates of volume and compute velocity requirements, understand and discuss openly any implementation limitations or workaround
Evaluate and build POCs for new strategic initiatives and work to convert to enterprise solutions
Take initiative to research, learn and recommend emerging technologies
Provide post release assistance to business, development, and support groups
Develop application as per best practice while remaining compliant with prescribed best practices.

What we offer

Equal opportunity and affirmative action employer
Accessibility accommodation for individuals with disabilities
Compliance with engineering, agile, and best practices for professional development.

Fulltime

New

Staff Accountant

We are looking for an experienced Staff Accountant to join our team in Houston, ...

Location

United States , Houston

Salary:

Not provided

Robert Half

Expiration Date

Until further notice

Requirements

Minimum of 7 years’ experience in accounting roles
Proficiency in QuickBooks Desktop and familiarity with My Quick Cloud
Strong knowledge of journal entries and general ledger management
Expertise in bank reconciliations and account reconciliation
Ability to work in an office environment, Monday through Friday from 8 AM to 5 PM
Exceptional attention to detail and organizational skills
Effective communication skills for collaborating with team members
Proven ability to meet deadlines and handle multiple priorities

Job Responsibility

Perform full-cycle accounting tasks, including journal entries and general ledger management
Ensure all financial transactions are accurately allocated to the correct general ledger accounts
Conduct bank reconciliations and balance sheet account reconciliations to maintain financial accuracy
Review and clean up accounting records, ensuring compliance with established procedures
Utilize QuickBooks Desktop and My Quick Cloud to manage financial data efficiently
Collaborate with the team to address discrepancies and improve accounting processes
Generate and analyze financial reports to support decision-making
Maintain adherence to deadlines for monthly, quarterly, and annual financial close processes
Provide support during audits by preparing necessary documentation and reports

What we offer

medical, vision, dental, and life and disability insurance
eligible to enroll in our company 401(k) plan

Fulltime

New

Housing Strategy Officer

We are looking for a proactive Housing Strategy Officer to join our newly restru...

Location

United Kingdom , Buckinghamshire County Wide

Salary:

43894.00 - 46018.00 GBP / Year

Buckinghamshire Council

Expiration Date

January 14, 2026

Requirements

A solid background in planning and development
Knowledge of Registered Provider operations, affordable housing delivery and/or an understanding of wider housing services such as temporary accommodation
Strong data analysis skills with the ability to interpret and present insights clearly
A proactive approach to learning, with a willingness to grow and develop on the job
Confident in communicating effectively across a range of platforms and audiences

Job Responsibility

Evaluate planning applications and advise on affordable housing provision in line with policy
Lead, develop, monitor and ensure implementation of the Council’s wider Housing Strategy and its associated delivery plans
Provide insight on housing trends, risks, and best practices in a data-driven manner to inform decision-making
Maintain strong stakeholder relationships and represent the Council in forums and partnerships
Support the management team in working across the Council to ensure homelessness and housing delivery are core elements to other relevant strategies
Engage with development scheme management and the governance processes

What we offer

a fair and inclusive culture
health and well-being initiatives including an Employee Assistance Programme, Mental Health First Aiders and mindfulness workshops
a unified voice through our Employee Representative Group
ongoing support, and the opportunity to develop and progress in your career with us
opportunities to take part in fun activities such as fundraising and social events
flexible and agile working arrangements
discounts on various Cafés, restaurants, shops
auto enrolment onto our generous Pension Scheme
the chance to gain membership to Costco
discounted gym memberships

Fulltime

!

New

Senior recruiter

At Nike, Talent Acquisition is about more than just filling roles: it’s about co...

Location

Netherlands , Hilversum

Salary:

26.00 - 35.00 EUR / Hour

Randstad

Expiration Date

January 28, 2026

Requirements

Proven track record in full life-cycle recruiting, preferably within large-scale corporate environments across multiple countries
Strong understanding of the talent markets across EMEA
Deep experience in sourcing, engaging, and nurturing passive talent using advanced tools and platforms
Exceptional relationship management skills with the ability to influence hiring decisions using data and market insights
Comfortable using modern recruiting technologies (e.g., Workday ATS, CRM systems, LinkedIn Talent Insights, Smartsheets)
Speaking fluent French and English is a requirement

Job Responsibility

Build and lead tailored recruitment strategies to identify, source, and assess top talent, acting as a consultant to hiring managers
Creatively network and build long-term pipelines of qualified talent using tools like LinkedIn Recruiter and Talent Insights
Champion diversity by focusing on diverse shortlists and inclusive hiring practices
Own and drive market research projects to map talent availability and trends across the EMEA region
Act as a subject matter expert on recruitment philosophy and drive process improvements in collaboration with the wider HR team

What we offer

Access to the gym facilities on campus
Commuting allowance of € 0,23 per km
25 vacation days if you work 40 hours per week a full year
Diverse team
Work from home allowance of €5 per day on days you are working from home
8.33% holiday allowance

Fulltime

C#.NET Software engineer - Trading applications

Talan

Location:
United States , New York

Category:
IT - Software Development

Contract Type:
Employment contract

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
January 06, 2026

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Job Description:

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