Senior Full Stack Developer (Flutter, Dart, Java)

Accellor is an AI-native services firm purpose-built for the post-ChatGPT era. Free from legacy constraints, we focus on delivering measurable business outcomes through advanced AI, data, and engineering capabilities. Our mission is to operationalize AI at scale and unlock sustained enterprise value.

Our offerings span AI solutions, data services, enterprise applications, and product engineering, tailored to industry-specific needs across healthcare, life sciences, telecom, retail, financial services, and technology. By leveraging design thinking and technology-agnostic architectures, we ensure faster time-to-value and seamless interoperability.

With a proven track record of enabling Fortune 100 enterprises and global innovators, Accellor stands as a trusted partner for organizations seeking to harness the full potential of AI. Our vision is clear: to build intelligent, connected ecosystems that deliver measurable outcomes and redefine the future of enterprise transformation.

We are seeking a highly skilled Senior Full-stack Developers with significant skills in Java and Flutter. You will work with our Staff and Sr. Engineers to innovate and build new systems, improve and enhance existing systems and identify new opportunities to apply your knowledge to solve critical problems. You will lead the strategy and execution of a technical roadmap that will increase the velocity of delivering products and unlock new engineering capabilities. The ideal candidate has deep technical expertise in their domain.

Key Responsibilities:

• Design and implement user-facing applications in either React with TypeScript and/or Flutter with Dart
• Familiar with Module Federation pattern
• Implement and maintain Redux Toolkit state, async flows, and resilient UI (loading/error/empty states).
• Integrate REST and, where applicable, GraphQL (Apollo) including real-time patterns over WebSockets.
• Write and maintain Jest + Testing Library tests; contribute to Playwright E2E where the product uses it; use MSW (or equivalent) for realistic API mocking.
• Collaborate on Express-based dev/prod serving, proxies, and security-minded defaults (headers, rate limits) where the codebase applies them.
• Partner with BFF/backend engineers on and/or develop Spring Boot APIs, GraphQL schemas, backend integrations and OpenAPI/documentation as needed.
• Instrument and troubleshoot using OpenTelemetry-based libraries and platform monitoring (e.g. Application Insights, error reporting).
• Utilize programming languages like JavaScript, TypeScript, Java, C#, Python, and Container Orchestration services including Docker and Kubernetes, and a variety of Azure tools and services across the software development life cycle (task management, source code, building, deployment, operations, real-time communication) to perform advanced-level Java application design under minimal direction
• Participate in Agile development processes, including planning, estimation, and retrospectives.

Requirements:
• Fluency and specialization with at least two modern languages such as JavaScript, TypeScript, JSX, Java, C++, Python or C# including object-oriented design
• 5+ years professional software development, including substantial production React experience.
• Strong TypeScript (types, generics, narrowing, module patterns).
• Webpack 5 and modern frontend tooling; experience with micro-frontends or Module Federation (or demonstrable equivalent: multi-app bundling, shared deps, runtime integration).
• Redux Toolkit (or Redux with RTK-style patterns) and async data loading in complex UIs.
• Proven understanding of micro-services architecture and extensible REST APIs
• Knowledge of security protocols and products: Understanding of Active Directory, Windows Authentication, SAML, OAuth
• REST client integration; GraphQL client experience (Apollo Client) preferred if not mandatory for your lane.
• Working knowledge of Node.js for build tooling and lightweight servers (Express).
• Experience shipping through CI/CD (Azure DevOps or comparable) and consuming private package registries.
• Ability to read and occasionally change Java/Spring Boot services or willingness to ramp quickly with mentorship (BFF is part of the same ecosystem).

Benefits:
Work-Life Balance: Accellor prioritizes work-life balance, which is why we offer, flexible work schedules, opportunities to work from home, and paid time off and holidays.

Financial and Medical Benefits: Our package includes perks like flexible and discretionary time off, healthcare coverage for you and your loved ones, and a retirement plan to help you plan for the future. Additionally, we offer access to flexible spending and health savings accounts, life and AD&D insurances.

Professional Development: Our dedicated Learning & Development team regularly organizes Communication skills training, Stress Management program, professional certifications, and technical and soft skill trainings.

Exciting Projects: We focus on industries like High-Tech, communication, media, healthcare, retail and telecom. Our customer list is full of fantastic global brands and leaders who love what we build for them.

Collaborative Environment: You can expand your skills by collaborating with a diverse team of highly talented people in an open, laidback environment — or even abroad in one of our global centres.

Accellor is proud to be an equal-opportunity employer. We do not discriminate in hiring or any employment decision based on race, color, religion, national origin, age, sex (including pregnancy, childbirth, or related medical conditions), marital status, ancestry, physical or mental disability, genetic information, veteran status, gender identity or expression, sexual orientation, or other applicable legally protected characteristics