backend senior software engineer cx engineering hybrid

Cisco

The application window is expected to close on: 09/27/2026This role follows a hybrid work model, with in-office attendance of at least two in Research Triangle Park(RTP), NC or San Jose, CA.
 
Meet the Team
 
Cisco’s Customer Experience (CX) Engineering organization is one of the company's fastest-growing and most innovative teams, crafting a first-in-class digital experience for customers and partners wherever they connect with Cisco. CX Platform supports the diverse needs of the CX organization through a platform-centric approach and is being built with emerging technologies, including predictive AI and generative AI, to drive greater customer success. The team sits at the center of developing modern, cloud-native technologies that help Cisco stay agile and adaptable in a rapidly evolving market. As pioneers in this space, the team helps customers maximize value through a simple, unified Cisco experience that accelerates time to impact. The culture is fast-moving, highly collaborative, data-driven, and grounded in ownership, accountability, quality, and urgency.Advanced experienced professional using best practices and knowledge of internal or external business issues to improve products or services.
 
Your Impact
 
As a Senior Software Engineer, you will join our growing team to design and deliver robust, scalable software solutions that enable customers to maximize the value of their Cisco technology investments. You will own the full software development lifecycle—from technical design and backend architecture to deployment—while ensuring high reliability and fault tolerance in distributed systems. Beyond technical execution, you will collaborate closely with internal stakeholders to drive deployment and optimization strategies while mentoring junior engineers to elevate the team’s collective technicalexpertise. This role is uniquely exciting as it places you at the intersection of complex cloud-native engineering and direct customer impact, allowing you to solve mission-critical challenges at scale. You will serve as a technical anchor, balancing high-level architectural contributions with hands-on development to build lasting solutions for our global customer base.
 
Minimum Qualifications
 
<ul>
<li>Bachelor’s degree in Computer Science (or equivalent field) with 7+ years of experience in the full software development lifecycle (build, test, deploy), orMaster’s degree with4+ years of related experience, or PhD with 1+year of related experience.</li>
<li>Experience in backend development coding in Python, Go, Node.js, Java, or Rust, developing REST orGraphQL APIs, relational or NoSQL databases including schema design and query optimization; and messaging or event-streaming technologies such as Kafka or AWS SQS/SNS.</li>
<li>Experience CI/CD workflows, with prior exposure to building ormaintaining pipelines and resolving deployment failures.</li>
<li>Experience with cloud infrastructure and container orchestration, specifically AWS, Kubernetes, Docker, and infrastructure-as-code (Terraform, CloudFormation).</li>
<li>Demonstrated experience applying AI-assisted development tools or AIOps practices to improve engineering efficiency.</li>
</ul>
Preferred Qualifications
 
<ul>
<li>Experience in software development within distributed production environments.</li>
<li>Expertise in large-scale data ingestion, transformation (ETL/ELT), and real-time streaming/Change Data Capture (CDC) technologies.</li>
<li>Strong familiarity with observability practices, including metrics, logging, distributed tracing, andalerting for complex systems.</li>
<li>Proficiency in modernfrontend technologies and frameworks (e.g., Angular, React).</li>
</ul>
Why Cisco?
 
At Cisco, we’re revolutionizing how data and infrastructure connect and protect organizations in the AI era – and beyond. We’ve been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint.
 Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you’ll see that the opportunities to grow and build are limitless. We work as a team, collaborating with empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere.
 We are Cisco, and our power starts with you.
 
Message to applicants applying to work in the U.S. and/or Canada:
 
The starting salary range posted for this position is $167,700.00 to $245,200.00 and reflects the projected salary range for new hires in this position in U.S. and/or Canada locations, not including incentive compensation*, equity, or benefits.
 Individual pay is determined by the candidate's hiring location, market conditions, job-related skillset, experience, qualifications, education, certifications, and/or training. The full salary range for certain locations is listed below. For locations not listed below, the recruiter can share more details about compensation for the role in your location during the hiring process.
 
U.S. employees are offered benefits, subject to Cisco’s plan eligibility rules, which include medical, dental and vision insurance, a 401(k) plan with a Cisco matching contribution, paid parental leave, short and long-term disability coverage, and basic life insurance. Please see the Cisco careers site to discover more benefits and perks. Employees may be eligible to receive grants of Cisco restricted stock units, which vest following continued employment with Cisco for defined periods of time.
 
U.S. employees are eligible for paid time away as described below, subject to Cisco’s policies:
 
<ul>
<li>10 paid holidays per full calendar year, plus 1 floating holiday for non-exempt employees</li>
<li>1 paid day off for employee’s birthday, paid year-end holiday shutdown, and 4 paid days off for personal wellness determined by Cisco</li>
<li>Non-exempt employees** receive 16 days of paid vacation time per full calendar year, accrued at rate of 4.92 hours per pay period for full-time employees</li>
<li>Exempt employees participate in Cisco’s flexible vacation time off program, which has no defined limit on how much vacation time eligible employees may use (subject to availability and some business limitations)</li>
<li>80 hours of sick time off provided on hire date and each January 1st thereafter, and up to 80 hours of unused sick time carried forward from one calendar year to the next</li>
<li>Additional paid time away may be requested to deal with critical or emergency issues for family members</li>
<li>Optional 10 paid days per full calendar year to volunteer</li>
</ul>
For non-sales roles, employees are also eligible to earn annual bonuses subject to Cisco’s policies.
 
Employees on sales plans earn performance-based incentive pay on top of their base salary, which is split between quota and non-quota components, subject to the applicable Cisco plan. For quota-based incentive pay, Cisco typically pays as follows:
 
<ul>
<li>.75% of incentive target for each 1% of revenue attainment up to 50% of quota;</li>
<li>1.5% of incentive target for each 1% of attainment between 50% and 75%;</li>
<li>1% of incentive target for each 1% of attainment between 75% and 100%; and</li>
<li>Once performance exceeds 100% attainment, incentive rates are at or above 1% for each 1% of attainment with no cap on incentive compensation.</li>
</ul>
For non-quota-based sales performance elements such as strategic sales objectives, Cisco may pay 0% up to 125% of target. Cisco sales plans do not have a minimum threshold of performance for sales incentive compensation to be paid.
 
The applicable full salary ranges for this position, by specific state, are listed below:
 
New York City Metro Area: 
$167,700.00 - $282,000.00
 
Non-Metro New York state& Washington state: 
$149,100.00 - $250,900.00
 <ul>
<li>For quota-based sales roles on Cisco’s sales plan, the ranges provided in this posting include base pay and sales target incentive compensation combined.</li>
</ul>
** Employees in Illinois, whether exempt or non-exempt, will participate in a unique time off program to meet local requirements.

Backend Senior Software Engineer, CX Engineering(Hybrid)

Fusion BPO Services

<div>Build software that helps push AI beyond the obvious. Fusion CX is hiring Software Engineers with strong Python and Docker expertise in Kolkata, India for a contractual opportunity supporting a frontier AI data initiative. If you are an experienced backend engineer who works confidently with Python, Docker, REST APIs, microservices, Git, and AI coding assistants, this opportunity lets you apply your engineering skills to the development of infrastructure, connectors, workflows, and training data used to develop and evaluate AI agents.
You will build and test backend applications, develop and extend SaaS connectors, mine workflows for realistic AI tasks, and use AI coding agents throughout development, QA, and validation.
<h2 class="jobSectionHeader">Job Description:</h2>
About the Role
As a Software Engineer &ndash; Python &amp; Docker, you will support a frontier AI data initiative requiring strong software engineering expertise to build infrastructure and training data used to develop and evaluate AI agents.
Depending on your assigned track, you may work on backend applications and SaaS connectors, task and data mining, workflow development, quality validation, and evaluation rubrics. You will also use AI coding agents throughout development, QA, and validation activities.
Key Responsibilities
<ul><li>Build Python backend applications that replicate existing SaaS tools such as Slack, Linear, Jira, Notion, Gmail, and wikis, including implementing integrations and standing up full-service backend functionality.</li>
<li>Perform thorough backend testing and integration validation to ensure each connector behaves faithfully like the system it emulates.</li>
<li>Adapt and extend previously built connectors as needed, and test existing connectors internally before they are treated as complete.</li>
<li>Build new connectors from scratch where required, within agreed delivery timeframes.</li>
<li>Conduct data mining and task mining to identify representative workflows suitable for long-horizon task development.</li>
<li>Author realistic tasks derived from mined data and workflows.</li>
<li>Verify task and data quality, realism, and correctness through structured QA.</li>
<li>Write clear evaluation rubrics that define correct, partially correct, and deficient work.</li>
<li>Use AI coding agents proficiently throughout all development, QA, and validation work.</li>
<li>Collaborate across the connectors and tasks tracks.</li>
<li>Participate in onboarding, calibration, and quality-review cycles.</li>
<li>Deliver assigned work to the expected quality bar and on agreed milestones.</li>
</ul><h2 class="jobSectionHeader">Job Requirements:</h2>
Required Skills &amp; Experience
<ul><li>3+ years of overall experience.</li>
<li>Strong proficiency in Python, with experience using FastAPI, Flask, or Django for backend software development.</li>
<li>Proficiency with Git and Docker, along with basic software pipeline setup.</li>
<li>Experience building scalable backend applications, REST APIs, and microservices.</li>
<li>Proficiency in using AI coding assistants such as Codex, Claude Code, Cursor, GitHub Copilot, or similar as part of daily development workflows.</li>
<li>Strong understanding of software engineering best practices, including version control, testing, and code quality.</li>
<li>Strong analytical and problem-solving skills with attention to detail.</li>
<li>Ability to work independently while collaborating effectively within distributed engineering teams.</li>
<li>Excellent written and verbal communication skills.</li>
</ul>Nice to Have
<ul><li>Experience building connectors or integrations for SaaS platforms.</li>
<li>Knowledge of evaluation frameworks, QA methodologies, and rubric creation for AI datasets.</li>
<li>Experience developing realistic workflows for long-horizon AI tasks.</li>
<li>Previous experience building AI data tasks.</li>
</ul>Work Details
Location: Kolkata, India
Work Mode: WFH
Employment Type: Contractor &ndash; Pay Per Task
Work Commitment: Flexible hours, with a minimum requirement to complete and get approved at least 1 task per day.
Start Date: Immediate
LinkedIn Requirement: A LinkedIn profile is mandatory for review. Please ensure your resume includes the LinkedIn profile link.
<h2 class="jobSectionHeader">Why Join Fusion CX?</h2>
Software engineering for AI is increasingly about more than building conventional applications. In this opportunity, your backend expertise will be applied to the systems, connectors, workflows, and data that help train and evaluate AI agents.
As a Software Engineer &ndash; Python &amp; Docker, you&rsquo;ll work on technically demanding assignments involving backend development, SaaS integrations, AI-assisted coding, data and task mining, testing, and structured evaluation. The flexible task-based model also gives experienced engineers the opportunity to contribute according to their availability while meeting the required daily delivery commitment.
What You Will Gain
<ul><li>Work on frontier AI data and AI agent development projects.</li>
<li>Apply Python backend engineering skills to AI-focused software development.</li>
<li>Gain experience building and testing connectors for SaaS platforms.</li>
<li>Work with technologies and practices including Python, Docker, Git, REST APIs, and microservices.</li>
<li>Strengthen your experience using AI coding assistants such as Claude Code, Codex, Cursor, or GitHub Copilot.</li>
<li>Gain exposure to AI dataset QA, evaluation frameworks, task mining, and rubric creation.</li>
<li>Develop experience creating realistic workflows for long-horizon AI tasks.</li>
<li>Work in a fully remote environment with flexible working hours while contributing to cutting-edge AI projects.</li>
</ul>Evaluation Process
The evaluation process includes:
<ul><li>Internal resume review</li>
<li>Online assessment focused on Python and Docker</li>
</ul>Apply Today
If you&rsquo;re searching for Software Engineer jobs in Kolkata, Python Developer jobs in Kolkata, Python backend developer jobs, Docker jobs, backend software engineer jobs, AI software engieering jobs, AI data jobs, remote software engineer jobs, or contract Python developer jobs, apply today and use your engineering expertise to contribute to projects shaping the next generation of AI systems.</div>

Software Engineer – Python & Docker – AI Data – Kolkata, India

Coducer Technologies Private Limited

Senior Azure AI Engineer &ndash; Contract RoleJob Title: Senior Azure AI Engineer Employment Type: Contract Experience: 5+ Years Location: Bangalore / Hybrid Work Mode: [On-site / Hybrid / Remote] Contract Duration: [6 Months / 1 Year]Job SummaryWe are looking for an experienced Senior Azure AI Engineer with 5+ years of professional experience to contribute to the implementation of AI solutions on Microsoft Azure.The candidate will primarily focus on backend services and components and will be responsible for supporting the complete development lifecycle, including requirements gathering, solution design, development, deployment, security, monitoring, and troubleshooting.The ideal candidate should have strong hands-on experience with Azure services, Python, data management, messaging/eventing, vector databases, and containerized applications.Key Responsibilities<ul><li>Contribute to all phases of implementing AI solutions on Microsoft Azure.</li><li>Participate in requirements gathering, technical design, development, testing, deployment, and maintenance.</li><li>Develop scalable and reliable backend services and components using Python and Azure technologies.</li><li>Integrate Azure services and third-party SDKs into AI applications.</li><li>Work with Azure data management services for storing, processing, and retrieving application data.</li><li>Implement messaging and event-driven architectures using Azure messaging and eventing services.</li><li>Work with vector databases to support AI/ML and Retrieval-Augmented Generation (RAG) use cases.</li><li>Design and implement containerized applications and deploy them on Azure.</li><li>Monitor applications and Azure resources and troubleshoot performance, availability, and operational issues.</li><li>Implement appropriate security practices across applications, APIs, data, and Azure resources.</li><li>Collaborate with AI/ML engineers, software developers, DevOps engineers, architects, and other stakeholders.</li><li>Participate in code reviews and ensure adherence to coding and development best practices.</li><li>Optimize application performance, scalability, reliability, and cost.</li><li>Prepare and maintain technical documentation related to solutions and deployments.</li></ul>Required Technical SkillsAzure<ul><li>Strong hands-on experience with Microsoft Azure.</li><li>Proficiency with Azure SDKs and third-party SDKs used in Azure.</li><li>Experience with Azure data management services.</li><li>Experience with Azure monitoring, logging, and troubleshooting.</li><li>Experience with Azure messaging and eventing services.</li><li>Experience deploying and managing applications in Azure.</li></ul>Programming<ul><li>Strong proficiency in Python.</li><li>Experience developing backend services, APIs, and integrations.</li><li>Good understanding of software development principles and design patterns.</li></ul>AI / Data<ul><li>Experience working with vector databases.</li><li>Understanding of AI/ML application architectures.</li><li>Exposure to RAG, embeddings, semantic search, or LLM-based applications is preferred.</li><li>Experience working with data pipelines and data storage solutions is an advantage.</li></ul>Containers &amp; Deployment<ul><li>Hands-on experience developing and deploying containerized applications on Azure.</li><li>Good understanding of Docker and container-based application architecture.</li><li>Experience with CI/CD and DevOps practices is preferred.</li></ul>Required Qualifications<ul><li>Bachelor's degree in Computer Science, Information Technology, Engineering, or a related technical field.</li><li>5+ years of professional software/backend development experience.</li><li>Strong hands-on experience with Azure-based application development.</li><li>Strong Python programming skills.</li><li>Experience working with Azure data, monitoring, messaging/eventing, and containerization.</li><li>Experience working with vector databases.</li><li>Strong troubleshooting and problem-solving abilities.</li><li>Good understanding of application security and cloud best practices.</li></ul>Preferred Skills<ul><li>Azure AI services / Azure OpenAI.</li><li>Retrieval-Augmented Generation (RAG).</li><li>Large Language Model (LLM) applications.</li><li>Azure Functions.</li><li>Azure Container Apps / AKS.</li><li>Azure Service Bus / Event Grid / Event Hubs.</li><li>Azure Storage / Cosmos DB / Azure SQL.</li><li>Application Insights / Azure Monitor.</li><li>Docker and Kubernetes.</li><li>REST APIs and microservices.</li><li>CI/CD pipelines.</li><li>Git and Agile/Scrum methodologies.</li></ul>Key Competencies<ul><li>Azure Cloud Development</li><li>Python Backend Development</li><li>AI Solution Implementation</li><li>Vector Databases</li><li>Cloud Data Management</li><li>Messaging &amp; Event-Driven Architecture</li><li>Containerized Applications</li><li>Monitoring &amp; Troubleshooting</li><li>Security</li><li>API Development</li><li>Problem Solving</li><li>Technical Design</li></ul>Contract DetailsEmployment Type: Contract Experience: 5+ Years Contract Duration: 6 Months Location: Bangalore Work Mode: In person Joining: Immediate JoinerPay: ₹509,436.64 - ₹1,868,808.54 per yearWork Location: In person

Artificial Intelligence Engineer

GoDaddy

<div><div><ul><li>R023583
</li></ul></div><div><ul><li>Pune, Maharashtra, India
</li></ul></div><div><ul><li>Engineering
</li></ul></div><div><ul><li>Regular</li></ul></div></div>
 <div>Location Details: Pune

At GoDaddy the future of work looks different for each team. Some teams work in the office full-time; others have a hybrid arrangement (they work remotely some days and in the office some days) and some work entirely remotely.
This is a hybrid position. You&rsquo;ll divide your time between working remotely from your home and an office, so you should live within commuting distance. Hybrid teams may work in-office as much as a few times a week or as little as once a month or quarter, as decided by leadership. The hiring manager can share more about what hybrid work might look like for this team.

Join Our Team 
GoDaddy is empowering everyday entrepreneurs around the world by providing all of the help and tools to succeed online. GoDaddy is the place people come to name their idea, build a professional website, attract customers, sell their products and services, and manage their work. Our mission is to give our customers the tools, insights and the people to transform their ideas and personal initiative into success. 
Our Domains Investor team is looking for a senior software engineer to join us in building and improving the Domain Investing experience at GoDaddy. As a senior software development engineer, you will work in a scrum team assisting with user stories for a full stack, customer-facing product team responsible for GoDaddy's aftermarket domain services. We are seeking to scale out our services globally and make them as mobile responsive as possible.

What you'll get to do...
<ul>
<li>Contribute to building and improving backend services and APIs for GoDaddy&rsquo;s domain investing platform</li>
<li>Support development of responsive, customer-facing features, with opportunities to work across the full stack</li>
<li>Write scalable, reliable, and cloud-ready code following engineering best practices</li>
<li>Participate in debugging and solving well-defined technical problems within the team&rsquo;s scope</li>
<li>Collaborate in an Agile environment, contributing to testing (unit/functional) and iterative release</li>
</ul>
Your experience should include...
<ul>
<li>5+ years of experience in software engineering, including building full stack applications and scalable systems</li>
<li>Strong proficiency in at least one programming language such as Java, C#, or Go</li>
<li>Solid experience working across backend services and frontend/UI technologies</li>
<li>Strong fundamentals in data structures, algorithms, software design, microservices, distributed systems, and cloud computing</li>
<li>Experience with CI/CD pipelines, testing, deployment automation, and cloud platforms, along with good communication skills</li>
</ul>
You might also have...
<ul>
<li>BS/MS or equivalent experience in a computer science, information system or related discipline</li>
<li>Passion to develop elegant and cutting-edge solutions for real-world business problems</li>
<li>Strong desire to learn and grow</li>
<li>Exposure to AI tools and technologies is a plus</li>
<li>Experience in an Agile development environment is preferred</li>
</ul>
We encourage you to apply even if your experience or skillset doesn&rsquo;t align perfectly with every requirement. We value a wide range of backgrounds and transferable skills, and we are excited to support learning and growth.

We've got your back... We offer a range of total rewards that may include paid time off, retirement savings (e.g., 401k, pension schemes), bonus/incentive eligibility, equity grants, participation in our employee stock purchase plan, competitive health benefits, and other family-friendly benefits including parental leave. GoDaddy&rsquo;s benefits vary based on individual role and location and can be reviewed in more detail during the interview process.

About us... GoDaddy is empowering everyday entrepreneurs around the world by providing the help and tools to succeed online, making opportunity more inclusive for all. GoDaddy is the place people come to name their idea, build a professional website, attract customers, sell their products and services, and manage their work. Our mission is to give our customers the tools, insights, and people to transform their ideas and personal initiative into success. To learn more about the company, visit About Us.

At GoDaddy, we know diverse teams build better products&mdash;period. Our people and culture reflect and celebrate that sense of diversity and inclusion in ideas, experiences and perspectives. But we also know that&rsquo;s not enough to build true equity and belonging in our communities. That&rsquo;s why we prioritize integrating diversity, equity, inclusion and belonging principles into the core of how we work every day&mdash;focusing not only on our employee experience, but also our customer experience and operations. It&rsquo;s the best way to serve our mission of empowering entrepreneurs everywhere, and making opportunity more inclusive for all. To read more about these commitments, as well as our representation and pay equity data, check out our Diversity and Pay Parity annual report which can be found on our Diversity Careers page.

We also embrace our diverse culture and offer a range of Employee Resource Groups (Culture). Have a side hustle? No problem. We love entrepreneurs! Most importantly, come as you are and make your own way.

GoDaddy is proud to be an equal opportunity employer. GoDaddy will consider for employment qualified applicants with criminal histories in a manner consistent with local and federal requirements. Refer to our full EEO policy.

Our recruiting team is available to assist you in completing your application. If they could be helpful, please reach out to myrecruiter@godaddy.com.

GoDaddy doesn&rsquo;t accept unsolicited resumes from recruiters or employment agencies.</div>

Senior Software Engineer

Xcede

<div>
 
 
 Senior/Staff AI Software Engineer
 
 
 
 
 
 
 We're recruiting on behalf of a well-established, globally recognised technology business operating in the commerce and payments space. Trusted by some of the world's largest retailers and e-commerce platforms, they've built a reputation over more than a decade for solving genuinely hard problems at scale; their network spans billions of data points and their technology sits at the heart of how major brands manage trust and identity across the customer journey.
 
 
 
 
 
 AI is central to how they operate and increasingly central to what they build. This isn't a business just beginning to experiment with AI; it's one that has moved firmly into the productisation phase, building AI-powered capabilities that touch every part of the organisation.
 
 
 
 
 
 
 What the role involves
 
 
 
 You'll join a dedicated AI Engineering team that acts as the focal point for AI across the business; designing, building and maintaining the platforms, tools and APIs that power both internal workflows and customer-facing products.
 
 
 Day to day that means building reusable AI infrastructure, developing evaluation frameworks and guardrails to ensure model reliability, working with RAG systems, MCP servers and agentic patterns, and helping other engineering teams leverage what you build. You'll take full ownership of projects from requirements through to deployment and operation, and act as an internal advocate for strong AI engineering practice across the business.
 
 
 
 
 
 
 What we're looking for
 
 
 <ul>
 <li>
 5+ years of backend engineering experience, building complex and highly scalable systems
 </li>
 <li>
 Solid understanding of GenAI, LLMs and foundation models
 </li>
 <li>
 Hands-on experience with agentic frameworks, RAG systems, evals and MCP
 </li>
 <li>
 Familiarity with AI coding tools such as Cursor, GitHub Copilot or similar
 </li>
 <li>
 Experience working with public cloud infrastructure (AWS, GCP or Azure)
 </li>
 <li>
 Strong sense of ownership; comfortable developing, deploying and running projects end to end
 </li>
 </ul>
 
 
 
 
 Hybrid, London.
 
</div>

Senior AI Engineer

Mastercard

<div>Our Purpose
Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we&rsquo;re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.
Title and Summary
Senior Software Engineer &ndash; Integrations &amp; API Connectivity
Overview 
Mastercard is a global technology company powering an inclusive, digital economy, enabling secure and seamless transactions across 210+ countries. 
This role sits within Mastercard&rsquo;s Open Finance Europe &ndash; Connectivity team, responsible for building and operating scalable API integrations with financial institutions across Europe. 
As a Senior Software Engineer, you will be a key hands-on contributor responsible for designing, building, and operating secure, reliable backend services. You will work on complex engineering problems, contribute to system design decisions, and deliver high-quality solutions that operate at scale in production environments. 
 
What You&rsquo;ll Do 
<ul><li>Design, develop, test, and support scalable APIs and backend services</li><li>Contribute to system design decisions with a focus on scalability, resilience, and performance</li><li>Deliver high-quality, production-ready code across the full software development lifecycle</li><li>Troubleshoot and resolve production issues, ensuring system stability and reliability</li><li>Participate in code reviews and uphold engineering best practices and standards</li><li>Implement effective testing strategies (unit, integration, end-to-end)</li><li>Collaborate with cross-functional teams including Product, Architecture, Security, and SRE</li><li>Improve observability, automation, and operational efficiency across services</li></ul>
 
Technology Stack 
<ul><li>Backend: C#, .NET, Web APIs</li><li>Cloud: Azure (App Services, KeyVault, Blob Storage), AWS (S3, Redis, Microservices)</li><li>Data: PostgreSQL, Flyway</li><li>Practices: CI/CD pipelines, observability, secure development</li><li>Plus: Java / Spring Boot, AI-assisted tools (e.g., GitHub Copilot)</li></ul>
 
What You Bring - Required 
<ul><li>3-5 years of professional software engineering experience</li><li>Strong hands-on experience building cloud-based, distributed backend systems</li><li>Solid expertise in API development, scalability, and production support</li><li>Ability to solve complex technical problems with a structured, pragmatic approach</li><li>Strong understanding of SDLC, testing practices, and secure coding principles</li><li>Proven ability to own and deliver components/services independently</li><li>Strong collaboration and communication skills</li></ul>
 
Preferred 
<ul><li>Experience in payments, banking, or Open Banking (PSD2) environments</li><li>Experience working with microservices architectures</li><li>Familiarity with observability, monitoring, and incident response practices</li><li>Exposure to AI-assisted development tools (e.g., GitHub Copilot)</li></ul>
Corporate Security Responsibility 
All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:<ul><li>
Abide by Mastercard&rsquo;s security policies and practices;</li><li>
Ensure the confidentiality and integrity of the information being accessed;</li><li>
Report any suspected information security violation or breach, and</li><li>
Complete all periodic mandatory security trainings in accordance with Mastercard&rsquo;s guidelines.</li></ul></div>

Senior Software Engineer – Integrations & API Connectivity

Scalo

<div><div>At Scalo, we are dedicated to delivering software projects. We help our partners grow their businesses by creating software that enables people to work faster, make a difference and achieve better results. Our company uses a wide range of IT services to assist our clients.

Our areas of expertise include technology consultancy, software development, embedded systems, cloud solutions, data management, and dedicated development teams.
</div>
<h2 class="jobSectionHeader">Hi! Explore cooperation opportunities with Scalo!</h2>
<h2 class="jobSectionHeader">Scope of cooperation:</h2>
<ul><li>developing and enhancing customer-facing applications in the area of backup, disaster recovery, and IT resilience,</li>
<li>building frontend solutions using React and TypeScript,</li>
<li>developing backend services and REST APIs with C#/.NET or Node.js,</li>
<li>working with SQL Server / Azure SQL and Microsoft Azure,</li>
<li>transforming prototypes and legacy solutions into secure, scalable, production-ready applications,</li>
<li>taking ownership of applications across development, deployment, support, and further improvements,</li>
<li>working with automated testing, code reviews, CI/CD pipelines, and AI-assisted development tools,</li>
<li>collaborating remotely with international engineering teams, mainly based in the UK,</li>
<li>working 7.5 hours per day according to UK business hours and the UK holiday calendar,</li>
<li>rate: up to 30 GBP/h on a B2B contract.</li>
</ul><h2 class="jobSectionHeader">Required competencies:</h2>
<ul><li>commercial experience as a Fullstack Software Engineer at Regular+ or Senior level,</li>
<li>strong experience with React and TypeScript,</li>
<li>commercial experience with C#/.NET or Node.js,</li>
<li>practical experience with REST APIs and SQL Server / Azure SQL,</li>
<li>experience with Microsoft Azure and modern CI/CD practices,</li>
<li>experience taking ownership of applications and supporting production systems,</li>
<li>knowledge of secure coding practices, automated testing, and code reviews,</li>
<li>experience with AI-assisted development tools,</li>
<li>ability to work independently in an international remote environment,</li>
<li>fluent English at C1 level or higher,</li>
<li>availability to work according to UK business hours.</li>
</ul><h2 class="jobSectionHeader">What you can expect when cooperating with us</h2>

<div><ul><li>Opportunity to deliver projects across Software, Embedded, Data, Cloud Services and AI.</li>
<li>Opportunity to participate in expert initiatives and support presales processes.</li>
<li>Medical care, a sports card and a cafeteria platform available in line with the applicable cooperation rules.</li>
</ul></div><div></div>Technology stack - enter 3 - 4 main technologies, separated by commas, e.g.: Java, AWS, Spring, Hibernate

React, Node, Typescript
Cooperation model - if you need change for Contract of mandate

B2B
Experience level enter: Junior, Regular, Senior, or Expert

Senior
Salary enter the upper end of the salary range, e.g. up to 150 PLN/h (B2B)

up to 30 GBP/h
Service delivery model enter: Remote, Hybrid, or On-site

Remote
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Senior Fullstack Developer (React/Node.js)

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