Senior Full Stack Software Engineer

Join Nium as a Senior Full Stack Engineer At Nium, we are revolutionizing the global payments landscape by providing an advanced infrastructure for real-time cross-border transactions. As a leader in the industry, our mission is to redefine how businesses, banks, and fintechs manage their payment processes globally. Our expansive payout network supports over 100 currencies and operates across more than 190 countries, including real-time transactions in 100 of those markets. With a focus on seamless integration and compliance, Nium is licensed in over 40 countries, allowing for rapid onboarding and easy access to our services. With co-headquarters in San Francisco and Singapore, we are poised to lead the future of global payments.About the OpportunityWe are looking for a passionate and experienced Full Stack Software Engineer to join our dynamic team. In this role, you will not only write code but also influence our technical vision, mentor team members, and drive the development of cutting-edge remittance products. If you have a strong commitment to user experience, performance optimization, and clean architectural practices, this role could be the perfect fit for you.

We are seeking an experienced Senior Full Stack Software Engineer with a solid background in Java or Python paired with React or Angular. Join our dynamic team to design, develop, and maintain cutting-edge web applications that meet the highest standards of quality.Key Responsibilities:Design and develop robust full-stack web applications using Java, Python, and React.Produce high-quality, maintainable, and efficient code while adhering to industry best practices.Leverage GitHub Copilot for accelerated coding and improved code quality, exploring its features actively.Work collaboratively with product managers, designers, and fellow engineers to define and implement innovative features.Engage in code reviews, providing and receiving constructive feedback to foster team growth.Diagnose and resolve issues across the full stack efficiently.Contribute to the enhancement of our development processes and tools.Create unit and integration tests to ensure software reliability.Stay abreast of emerging technologies and industry trends to bring innovative ideas to the team.Participate in architectural discussions and contribute to key technical decisions.

Role overview Weekday-1 is hiring a Senior Full Stack Developer based in Mumbai, Maharashtra. This full-time role places you with one of Weekday's clients, where you will tackle technical challenges spanning both web and mobile platforms. The position calls for a hands-on developer who can balance technical leadership with active coding and mentoring. Salary: Rs 1,500,000 – Rs 4,500,000 (INR 15–45 LPA) Minimum experience required: 4 years What you will do Technical leadership and architecture: Own system architecture for mobile apps, backend services, and APIs. Translate business and product requirements into scalable technical solutions. Set engineering standards, review code and architecture, and guide high-quality releases. Mentor engineers and interns. Full stack development: Design, build, and maintain features across mobile apps, backend services, and platform APIs. Manage the full development lifecycle, from gathering requirements to testing, deployment, and monitoring. Mobile engineering: Lead Android projects using Kotlin and iOS projects using Swift. Define architecture patterns, evaluate frameworks, and focus on performance and security across devices. Backend and platform engineering: Develop backend services with Golang, Rust, and Python. Integrate third-party services, design RESTful APIs, and ensure system reliability. Infrastructure, security, and DevOps: Apply secure coding practices and encryption. Use Docker and CI/CD pipelines to streamline deployments. Job type Full-time

We are seeking a talented Full Stack Engineer to join our dynamic team at weekday-1. In this role, you will be responsible for developing and maintaining web applications, ensuring high-performance and responsiveness to requests from the front-end. You will work closely with both front-end and back-end developers to integrate user-facing elements with server-side logic.

Job Opportunity: Full Stack EngineerJoin us as a Full Stack Engineer at 1kosmos, where you will play a pivotal role in designing, developing, and enhancing our advanced authentication and identity-proofing systems. This position is crucial in delivering seamless user experiences for our clients, supported by robust and scalable backend implementations.In this dynamic role, you will oversee both front-end and back-end development, integrating a variety of technologies to create resilient applications. Your contributions will significantly impact how enterprises secure and verify identities. We seek a passionate coder who enjoys problem-solving and thrives in a collaborative environment.

Role overview sia seeks a Senior Full Stack Engineer with deep experience in .NET and C# for its Mumbai office. The position centers on building and maintaining software that supports the company’s data science projects. Key responsibilities Design, develop, and maintain software solutions using .NET and C# Partner with teams throughout the organization to deliver dependable applications Create tools and systems that help transform data science concepts into usable products Collaboration This role requires frequent collaboration with colleagues from various backgrounds to ensure applications align with both technical and business requirements.

Join our dynamic team at necsws as a Senior Software Engineer specializing in Full Stack Development. In this role, you will leverage your expertise in Java, Angular, and Ionic to create innovative applications that drive our business forward. You will collaborate with cross-functional teams to design, develop, and maintain high-quality software solutions.

Join our innovative team at sia as a Senior Full Stack Engineer (Frontend). We are looking for a talented and passionate engineer who thrives in a fast-paced environment and is eager to contribute to our dynamic projects. You will be responsible for developing user-facing features and enhancing the overall experience of our applications.

Join Our Mission at Juniper SquareAt Juniper Square, we are dedicated to unlocking the full potential of private markets. As a leader in digitizing privately owned assets, including commercial real estate, private equity, and venture capital, we strive to enhance efficiency, transparency, and accessibility within our financial ecosystem. If you're passionate about leveraging technology to create impactful change, we invite you to join our values-driven team.With diverse working arrangements from fully remote to in-office opportunities in San Francisco, New York City, Mumbai, and Bangalore, we embrace a digital-first approach that enables our teams to collaborate effectively across multiple countries.About the RoleWe are on the lookout for a talented Full Stack Technical Lead to spearhead the architecture, design, and development of scalable web applications and distributed systems. This role requires a solid foundation in backend technologies such as Python (preferably FastAPI) or Java, coupled with strong frontend skills in ReactJS and TypeScript.In this position, you will oversee the end-to-end delivery of systems, guiding engineering teams through architectural decisions while ensuring adherence to best practices throughout the software development lifecycle. Your experience with AI tools and building AI-driven solutions will be a considerable asset, enabling the development of intelligent features and data-driven capabilities within our products.

Join an award-winning international software company based in Spain as a Senior Full Stack Laravel Developer. We are seeking a highly skilled and experienced developer to contribute to creative web and mobile software solutions, collaborating with teams across various European locations.Key Responsibilities: Define web page structures based on provided designs. Create reusable code to enhance development efficiency. Adopt a mobile-first approach to web design. Optimize designs for mobile devices and ensure performance standards are met. Monitor and enhance web page speed and scalability. Demonstrate self-motivation and effectively manage time and workload.

Join a dynamic client of Weekday's as a Full Stack Engineer!Salary range: Rs 800000 - Rs 1000000 (INR 8-10 LPA)Location: MumbaiExperience: 3–6 YearsWe are on the lookout for a skilled Full Stack Engineer who excels in both frontend and backend technologies. The ideal candidate will demonstrate a strong ability to develop scalable web applications using modern JavaScript frameworks and robust backend systems, contributing significantly to building high-performance, user-centric platforms.Responsibilities:Design and maintain scalable web applications using contemporary frontend and backend technologies.Develop responsive and high-quality user interfaces leveraging React.js.Architect and implement RESTful APIs and microservices.Collaborate with cross-functional teams to define, design, and deliver innovative features.Optimize applications for enhanced performance, scalability, and reliability.Participate in code reviews, debugging processes, and continuous integration/continuous deployment (CI/CD) practices.Engage in database design and integration with both SQL and NoSQL databases.Ensure compliance with best practices in coding standards, security, and performance.Required Skills & Qualifications:Frontend:3 to 6 years of hands-on experience with React.js.Proficiency in JavaScript and TypeScript.Deep understanding of component-based architecture, hooks, and state management.Experience with REST API integration and asynchronous programming methods.Solid knowledge of HTML, CSS, responsive design principles, and browser behaviors.Familiarity with frontend performance optimization and debugging techniques.Backend:Strong programming experience in Java.Good grasp of Object-Oriented Programming (OOP) concepts and design patterns.Hands-on experience with REST APIs and microservices architecture.Experience with containerized deployment environments.Database & Tools:Experience with relational and NoSQL databases (e.g., SQL Server, Cosmos DB).Familiarity with Git version control and CI/CD pipeline processes.Exposure to debugging distributed systems.Core Fundamentals:Strong knowledge of Data Structures and Algorithms.Able to tackle medium-complexity problem-solving challenges.Cloud & Monitoring:Experience with cloud platforms, preferably Azure; AWS or GCP are also acceptable.Familiarity with logging, monitoring, and observability tools.Good to Have:Experience working on large-scale or high-traffic applications.

Join Our Team as a Senior Java Full Stack Developer!At Infotel UK, a leading consultancy in information technology and digital transformation, we are on the lookout for a talented and experienced Senior Java Full Stack Developer. In this key position, you will be instrumental in crafting robust and scalable web applications that drive our clients' success and optimize their operational processes.Key Responsibilities:Design and develop scalable web applications utilizing Java technologies and contemporary front-end frameworks.Engage in the complete software development lifecycle, from requirements gathering to deployment.Collaborate closely with UI/UX designers to transform design concepts into highly functional applications.Enhance applications for peak speed and scalability, ensuring an outstanding user experience.Implement RESTful APIs and integrate with backend services seamlessly.Perform code reviews, conduct unit testing, and troubleshoot to guarantee code quality.Mentor junior developers and nurture a culture of continuous learning and improvement within the team.

Eram Talent is actively seeking a skilled Full Stack Web Developer to become a vital part of our dynamic team in Saudi Arabia. In this pivotal role, you will be tasked with designing, developing, and maintaining high-performance web applications that deliver outstanding user experiences. You will leverage cutting-edge technologies and frameworks to build scalable applications tailored to our clients' requirements.Key ResponsibilitiesDevelopment:- Design and execute both front-end and back-end components for web applications, ensuring optimal performance and responsiveness.- Produce high-quality, reusable code that is thoroughly documented and tested.Collaboration:- Work in close partnership with designers and product managers to convert business needs into technical specifications.- Engage with team members in an Agile workspace, actively participating in daily stand-ups and sprint reviews.API Integration:- Create and integrate RESTful APIs to facilitate seamless data flow across various services.Database Management:- Design, implement, and oversee databases to meet application demands.- Ensure data security, integrity, and confidentiality through robust management practices.Testing and Debugging:- Conduct comprehensive testing of applications, addressing bugs and performance issues.- Implement automated testing processes to maintain code quality.Continuous Learning:- Stay abreast of emerging technologies and industry trends to uphold best practices in web development.

We are seeking a highly skilled Senior Software Engineer / Lead Software Engineer with over 5 years of experience to join our dynamic team in Mumbai. The ideal candidate must have solid hands-on coding expertise, with a strong focus on development projects rather than maintenance and support tasks.The successful applicant will be responsible for conducting detailed impact analyses and providing comprehensive case studies. You should possess the ability to estimate project timelines effectively and review estimations critically. Experience with Agile methodologies is essential, alongside a commitment to quality deliverables and effective change management.Core Frontend Skills Required:TypeScriptAngular 5+Ionic 3+HTMLCSS/SCSSCordovaAndroid DevelopmentiOS Development

Join our dynamic team at necsws as a Senior Software Engineer specializing in .Net. In this pivotal role, you will be responsible for designing, developing, and maintaining robust software solutions that drive our business objectives. You will collaborate closely with cross-functional teams to deliver high-quality software products that enhance user experience and meet client needs.

Core Technical Proficiencies Proficient in hands-on codingDemonstrated experience in development projects, not limited to maintenance and supportSkilled in conducting detailed impact analysis and case studiesCapable of providing and reviewing project estimatesExperience with Agile methodologiesEffective in planning and executing project tasksEnsures high quality of deliverablesManages change control effectively Front-End Technologies:TypeScriptJavaScriptFamiliarity with at least one JavaScript framework (e.g., ExtJS, React, Angular) 3+HTMLCSS/SCSSCordova 3+Electron 3+Android OS 3+Android StudioiOS (a plus)Jenkins Server (for Cordova & Electron builds)Key Personal AttributesAbility to propose enhancements to user stories and communicate effectively with stakeholders (Business Analysts)Strong verbal and written communication skills with team members (both onshore and offshore)Accountable for personal deliverablesAbility to work under pressure when necessaryEstablishes and adheres to agreed standards and processesTeam-oriented with a knack for mentoring and training peersMaintains composure in challenging situationsExperience in onsite project work

About the Role weekdayworks is looking for a Senior Backend Software Engineer in Mumbai. This position focuses on building and maintaining high-performance backend applications that can scale as the company grows. What You Will Do Design, develop, and maintain backend systems with a focus on efficiency and reliability Collaborate with teams across disciplines to deliver robust technical solutions Troubleshoot and debug backend applications to resolve issues quickly Participate in code reviews to help uphold quality and consistency throughout the codebase Work to ensure backend services deliver strong performance and responsiveness

Nium is a pioneering global infrastructure company that facilitates real-time cross-border payments. Our mission is to provide the payments infrastructure of tomorrow, today. We are developing a programmable, borderless, and compliant money movement layer that enables seamless transactions between individuals, businesses, and intelligent systems. This empowers banks, fintechs, payroll providers, travel platforms, marketplaces, and other global enterprises to execute money transfers instantly, anywhere across the globe.With co-headquarters in San Francisco and Singapore, and offices in 14 markets with team members across more than 20 countries, we take pride in our culture, which is rooted in simplicity, continuous improvement, and collaborative success. In 2025, we achieved record revenue, transaction volumes, and EBITDA profitability, indicating a robust chapter in our evolution. We believe that the best work is done in person, and hence we follow a hybrid model with three in-office days each week to foster collaboration, alignment, and innovation.Nium processes over $50 billion annually across a network that spans 190+ countries, 100 currencies, and 100 real-time corridors. We facilitate rapid payouts to accounts, wallets, and cards; enable local collections in 35 markets; and support card issuance in 34 countries, all backed by licenses in over 40 markets.Having raised over $300 million to date, Nium presents ambitious builders with the opportunity to shape the future of global money movement at scale.

Join our dynamic team as a Full Stack Developer, where you will play a crucial role in shaping our software solutions. The ideal candidate will possess comprehensive knowledge of software development processes and be eager to contribute to all phases of our projects.Key Responsibilities:Design and implement the overall architecture of web applications.Ensure application quality and responsiveness.Collaborate with the engineering team to develop and launch innovative features.Maintain code integrity and organization.Work effectively with graphic designers, translating designs into functional visual elements.Implement and uphold security measures and data protection protocols.Demonstrate expertise in back-end programming languages including PHP, Laravel, and CodeIgniter; Python knowledge will be an added advantage.Exhibit proficiency in advanced JavaScript frameworks and libraries, focusing on VueJS, with additional experience in AngularJS, KnockoutJS, BackboneJS, or ReactJS being a plus.Understand and utilize server-side languages such as Node.js.Have experience with cloud messaging APIs and the integration of push notifications.Familiarity with version control systems is essential.

Join Blue Altair:Have you considered the pivotal role you’ll play in the AI landscape of tomorrow?At Blue Altair, we see every employee as a unique star—filled with diverse elements that shine brilliantly. Like stars brightening the night sky, our team members illuminate the realms of business and technology with their talent, creativity, and commitment.Blue Altair is a pioneering consulting firm recognized for utilizing transformative technologies to enable AI and propel digital success for its clients. Established in 2015, our services encompass Assessment and Strategy, Technology Implementation, and Managed Services across API Management and Integration, Data Management, Digital Application Development, and Artificial Intelligence. We take pride in surpassing industry standards for project success, owing to our expert focus on program and project management, business analysis, and quality assurance.Being part of Blue Altair means engaging with a vibrant and dynamic team that drives digital transformation and empowers clients to embrace AI innovations. Regardless of your role, you’ll contribute to shaping the digital future and making a substantial impact.If you’re a star ready to shine even brighter, we’re excited to meet you. Join us at Blue Altair—where we’re not just transforming businesses, but crafting the AI universe one star at a time!