CrawlJobs Logo
One Call Logo One Call · IT - Software Development

Sr. Full-Stack Engineer - Microsoft .NET/SQL Server

United States Employment contract 102069.00 - 163311.00 USD / Year · Job Posted June 03, 2026
Apply Position
Job Link Share

Job Description

We are seeking a highly motivated Full Stack Engineer with strong experience in .NET technologies, ASP.NET, and Microsoft SQL server to design, develop, and maintain scalable web applications. The ideal candidate will work across both frontend and backend systems, delivering high-quality, secure, and performant solutions.

Job Responsibility

  • Design, develop, and maintain web applications using ASP.NET, (MVC/Core) and C#
  • Build and consume RESTful APIs and microservices
  • Develop responsive front-end interfaces using HTML, CSS, JavaScript, and modern frameworks (Angular/React)
  • Write efficient, scalable database queries, stored procedures, and functions in SQL Server (MSSQL)
  • Optimize application performance, scalability, and security
  • Collaborate with product managers, designers, and other engineers in Agile environments
  • Troubleshoot and debug production issues with a focus on reliability and performance
  • Participate in code reviews and ensure best practices in coding, testing and deployment
  • Implement CI/CD pipelines and contribute to DevOps practices

Requirements

  • Bachelor's degree in Computer Science or related field (or equivalent experience)
  • 7+ years of experience in full stack development
  • Strong proficiency in C# and .NET Framework/ .NET Core
  • NET MVC/Web API
  • Microsoft SQL Server (MSSQL), TSQL
  • Experience writing complex SQL queries, joins, indexing, and performance tuning
  • Familiarity with front-end technologies: JavaScript, HTML5, CSS3
  • At least one framework (React, Angular, or Vue)
  • Understanding of REST APIs, authentication (JWT, OAuth), and web security
  • Experience with GIT and version control systems

Nice to have

  • Experience with Azure or other cloud platforms (AWS/GCP)
  • Knowledge of containerization tools (Docker, Kubernetes)
  • Experience with messaging systems (Kafka, RabbitMQ)
  • Exposure to microservices architecture
  • Understanding of test-driven development (TDD) and unit/integration testing
One Call - All Job Offers

Looking for more opportunities?

Search for other job offers that match your skills and interests.

Suggested Tags: Frontend Developer Secretary Talent Manager Salesforce Administrator Data Analyst
Similar Jobs for

Sr. Full-Stack Engineer - Microsoft .NET/SQL Server

8 matching positions

New

Operations Manager (Conference and Events)

Operations Manager (Conference and Events Hospitality) - Newmarket and Huntingdo...
Location
Location
United Kingdom , Newmarket
Salary
Salary:
33000.00 GBP / Year
14forty.co.uk Logo
14forty
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Some experience of delivering live conferences, meetings and events
  • A positive, approachable and a trouble shooter
  • Strong organisation, communication and computer skills
  • The ability to communicate at all levels and meet deadlines
  • A self-starter
  • motivated by a passion for quality and great service delivery
Job Responsibility
Job Responsibility
  • Manage the allocated causal team members to set up and break down meeting rooms and deliver live conference and events
  • To review the weekly payroll and assist the management of the variable payroll to achieve financial targets set while meeting the operational needs
  • Act as a central point of contact for C&E operational queries
  • Attendance of all regular meetings and briefings to ensure regular communication takes place with all stakeholders
  • Develop a good working relationship with the Hospitality team based at Newmarket
  • Use function sheets to gather customer expectations, room set us and menus requirements
  • Work with the chef team to ensure all special diets and allergens are managed on live event days
  • Ensure all H&S policy and procedures are followed
  • Support the People Operations team in the recruitment, selection, induction and retention practices for the C&E department
  • Take the lead for C&E team welfare and engagement activities
What we offer
What we offer
  • Competitive salary and full company benefits
  • 23 days' annual leave plus bank holidays
  • your birthday off
  • holiday purchase scheme
  • Aviva Digicare
  • Medicash (dental, optical, therapy treatments)
  • Mental health support: 24/7 Employee Assistance Programme
  • Enhanced maternity, paternity, and adoption leave
  • 2 days additional leave after returning from maternity leave
  • day off for your baby's first birthday
  • Fulltime
Read More
Arrow Right
New

Technical Support Specialist

Thunderbird is growing, and we’re looking for a Technical Support Specialist to ...
Location
Location
Canada; United States
Salary
Salary:
Not provided
mozilla.org Logo
Mozilla
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5+ years of technical support experience providing Level 1 and Level 2 troubleshooting for software products, web services, email systems, or IT environments
  • Hands-on experience troubleshooting email protocols and client configuration issues, including SMTP, IMAP, JMAP, and account setup workflows
  • Working knowledge of DNS fundamentals, including A, MX, and TXT records, as well as SPF, DKIM, and DMARC
  • Familiarity with Mozilla Thunderbird or comparable desktop email clients
  • 5+ years of experience using Zendesk or a similar CRM, help desk, or ticketing platform
  • Strong troubleshooting skills and the ability to gather information, isolate variables, and resolve technical issues even when the initial information is incomplete
  • Excellent written communication skills, with the ability to explain technical concepts clearly to users with different levels of technical knowledge
  • Strong empathy, patience, and emotional intelligence when supporting frustrated or confused users
  • Experience engaging with users in public or semi-public support channels, such as forums, app store reviews, issue trackers, or user communities
  • A strong sense of ownership over support quality and the user experience
Job Responsibility
Job Responsibility
  • Manage technical support tickets from intake through resolution, with an initial focus on Thunderbird’s subscription products
  • Provide timely, thoughtful, and empathetic support that helps users feel heard, understood, and effectively supported
  • Troubleshoot Level 1 and Level 2 technical issues, including account setup, email configuration, SMTP, IMAP, JMAP, DNS, email authentication, and Thunderbird desktop client issues
  • Triage incoming requests to determine whether the issue is user error, configuration-related, a product bug, or a feature request
  • Escalate complex issues with clear reproduction steps, logs, environmental details, and user impact
  • Maintain accurate and complete support records in Zendesk or similar systems
  • Monitor and respond to technical questions in Thunderbird community forums
  • Monitor and respond to app store reviews, initially for Android and later for iOS
  • Identify recurring user pain points, documentation gaps, product confusion, and emerging trends across support channels
  • Share systemic issues with support leadership, product, engineering, or documentation teams so we can improve the experience for all users
What we offer
What we offer
  • Fully remote work & schedule flexibility
  • Company-provided laptop
  • Annual bonus program
  • Monthly remote work stipend
  • Annual professional development stipend
  • Industry conferences
  • Company all-hands and team gatherings
  • 24 days PTO per year (prorated)
  • Your birthday
  • Year-end company shutdown
  • Fulltime
Read More
Arrow Right
New

IT Quality Sr Analyst - Assistant Vice President

The IT Quality Sr Analyst is a seasoned professional role. Applies in-depth disc...
Location
Location
India , Pune
Salary
Salary:
Not provided
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 8-12 years experience in an IT Quality role
  • Demonstrated execution capabilities
  • Development experience in a fast-paced, time-to-market driven environment
  • Experience with test automation, test scenario and test scripts creation and modification
  • Comfortable with writing complex queries
  • Experience with reporting tools
  • Hands on experience with testing automation tools
  • Project management experience preferred
  • Bachelor’s/University degree or equivalent experience
Job Responsibility
Job Responsibility
  • Responsible for initiatives related to User Acceptance Testing (UAT) process and product rollout into production, making recommendations of solutions and improvements
  • Responsibilities may also include software quality assurance testing
  • Conducts complex process monitoring, product evaluation and audit assignments
  • reports issues and makes recommendations for solutions
  • Ensures project standards and procedures exist, are fully / clearly documented and followed throughout the software development life cycle
  • makes recommendations for enhanced documentation
  • Monitors products for conformance to standards
  • monitors processes for conformance to procedures
  • identifies risks and recommends solutions
  • ensures annual organizational reviews of standards and procedures are conducted
  • Fulltime
Read More
Arrow Right
New

IT Quality Sr Analyst

The IT Quality Sr Analyst is a seasoned professional role. Applies in-depth disc...
Location
Location
India , Pune
Salary
Salary:
Not provided
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 8-12 years experience in an IT Quality role
  • Demonstrated execution capabilities
  • Development experience in a fast-paced, time-to-market driven environment
  • Experience with test automation, test scenario and test scripts creation and modification
  • Comfortable with writing complex queries
  • Experience with reporting tools
  • Hands on experience with testing automation tools
  • Project management experience preferred
Job Responsibility
Job Responsibility
  • Responsible for initiatives related to User Acceptance Testing (UAT) process and product rollout into production, making recommendations of solutions and improvements
  • Responsibilities may also include software quality assurance testing
  • Conducts complex process monitoring, product evaluation and audit assignments
  • reports issues and makes recommendations for solutions
  • Ensures project standards and procedures exist, are fully / clearly documented and followed throughout the software development life cycle
  • makes recommendations for enhanced documentation
  • Monitors products for conformance to standards
  • monitors processes for conformance to procedures
  • identifies risks and recommends solutions
  • ensures annual organizational reviews of standards and procedures are conducted
  • Fulltime
Read More
Arrow Right
New

Java Bigdata Developer

Location
Location
India , Pune
Salary
Salary:
Not provided
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 3-5 years of relevant experience
  • Experience in programming/debugging used in business applications
  • Working knowledge of industry practice and standards
  • Comprehensive knowledge of specific business area for application development
  • Working knowledge of program languages
  • Consistently demonstrates clear and concise written and verbal communication
  • Bachelor's degree/University degree or equivalent experience
  • Good knowledge on JavaSpark
  • Experience in Bigdata and Hive
  • Good understanding and hands on in AI tools like co-pilot etc.
Job Responsibility
Job Responsibility
  • Utilize knowledge of applications development procedures and concepts, and basic knowledge of other technical areas to identify and define necessary system enhancements
  • Identify and analyze issues, make recommendations, and implement solutions
  • Utilize knowledge of business processes, system processes, and industry standards to solve complex issues
  • Analyze information and make evaluative judgements to recommend solutions and improvements
  • Conduct testing and debugging, utilize script tools, and write basic code for design specifications
  • Assess applicability of similar experiences and evaluate options under circumstances not covered by procedures
  • Develop working knowledge of Citi’s information systems, procedures, standards, client server application development, network operations, database administration, systems administration, data center operations, and PC-based applications
  • Appropriately assess risk when business decisions are made, demonstrating particular 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 behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency.
  • Fulltime
Read More
Arrow Right
New

Senior Mixed Methods User Researcher

The Firefox User Research team champions human-centered exploration of complex p...
Location
Location
Canada
Salary
Salary:
105000.00 - 130000.00 CAD / Year
mozilla.org Logo
Mozilla
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 4-6 years of UX research work experience in the consumer technology industry
  • Significant experience leading both evaluative and generative research across multiple phases of the product development lifecycle
  • Demonstrated success operating in fast-paced, agile environments, adapting to shifting priorities while maintaining research impact
  • Experience applying a diverse set of qualitative methods (e.g., interviews, concept testing, usability studies) and practical experience with quantitative approaches (e.g., survey design, data analysis)
  • Strong judgment in evaluating research priorities and making trade-off recommendations across multiple concurrent workstreams
  • Deep, current knowledge of AI tools used in research workflows, with the expertise to evaluate their outputs critically and apply them responsibly and effectively
  • Collaborative communicator, skilled at building partnerships with cross-functional teams and driving alignment through evidence-based insights
  • Experienced in supporting iterative, user-centered product development, ensuring research continuously informs design and strategy
  • Commitment to our values: Welcoming differences
  • Being relationship-minded
Job Responsibility
Job Responsibility
  • Lead mixed method user research studies across the mobile and privacy product spaces, developing research materials, executing research, and turning data into actionable recommendations
  • Facilitate a user-centered design and product development process that advocates for users' needs and perspectives
  • Leverage AI tools thoughtfully across the research workflow while applying critical review to ensure outputs are accurate
  • contribute to the development of standards for responsible AI use in research
  • Partner cross-functionally with product, design, engineering, data science, and marketing to identify high-impact research opportunities and align insights to business priorities
  • Understand and incorporate complex and nuanced technical and business requirements into research
  • Collaborate with Mixed Methods and Quantitative User Researchers
What we offer
What we offer
  • Generous performance-based bonus plans to all eligible employees
  • Rich medical, dental, and vision coverage
  • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute)
  • Quarterly all-company wellness days where everyone takes a pause together
  • Country specific holidays plus a day off for your birthday
  • One-time home office stipend
  • Annual professional development budget
  • Quarterly well-being stipend
  • Considerable paid parental leave
  • Employee referral bonus program
  • Fulltime
Read More
Arrow Right
New

Cook / Manager

We’re not going to bore you with a long list of empty adjectives, we want one si...
Location
Location
United Kingdom , Woking
Salary
Salary:
18705.00 GBP / Year
impactfood.co.uk Logo
Impact Food Group
Expiration Date
July 15, 2026
Flip Icon
Requirements
Requirements
  • Great cooking and people management skills
  • Experienced Cook/Chef Manager, used to cooking using fresh seasonal ingredients at volume
  • Managing your kitchen and liaising directly with onsite clients
Job Responsibility
Job Responsibility
  • Heading up the team
  • Making sure service runs smoothly
  • Ensuring all due diligence is adhered to
What we offer
What we offer
  • Free meal on shift
  • Uniform
  • School holidays off
  • Staff discount scheme at over 850 retailers
  • Monthly opportunities for best teams to win shopping vouchers
  • Free qualifications and career development opportunities
  • Parttime
Read More
Arrow Right
New

Lead Java Full Stack Developer – Vice President

The Java Full Stack Developer is a senior level position responsible for establi...
Location
Location
Canada , Mississauga
Salary
Salary:
120800.00 - 170800.00 USD / Year
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 6-10 years of relevant experience in Apps Development or systems analysis role
  • Extensive experience system analysis and in programming of software applications
  • Demonstrated leadership and project management skills
  • Experience in applying resilience patterns (Resilience4j circuit breakers, retries) for external API integrations
  • Experience of building RESTful APIs using Springboot, Spring, Hibernate
  • Experience with databases such as Oracle and MongoDB
  • Experience with containerization and orchestration technologies like OpenShift and Kubernetes
  • Experience of following TDD and clean code principles
  • Proficiency with data structures, algorithms and SQL
  • Proficiency in programming in Java, Python, Scala
Job Responsibility
Job Responsibility
  • Partner with multiple management teams to ensure appropriate integration of functions to meet goals as well as identify and define necessary system enhancements to deploy new products and process improvements
  • Resolve variety of high impact problems/projects through in-depth evaluation of complex business processes, system processes, and industry standards
  • Provide expertise in area and advanced knowledge of applications programming and ensure application design adheres to the overall architecture blueprint
  • Utilize advanced knowledge of system flow and develop standards for coding, testing, debugging, and implementation
  • Develop comprehensive knowledge of how areas of business, such as architecture and infrastructure, integrate to accomplish business goals
  • Provide in-depth analysis with interpretive thinking to define issues and develop innovative solutions
  • Serve as advisor or coach to mid-level developers and analysts, allocating work as necessary
  • Appropriately assess risk when business decisions are made, demonstrating particular 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 behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency
  • Fulltime
Read More
Arrow Right