This description is a summary of our understanding of the job description. Click on 'Apply' button to find out more. Role Description The Mid-level Full-Stack Developer is an integral component of a team supporting a federal client’s IT modernization effort of both Operations & Maintenance bug fix triage support and Maintenance & Development, Modernization & Enhancements to an integral IT System. This position would be responsible for Development and maintenance of the new application and its services. - Design, develop & maintain cloud functionalities via Spring STS, VS Code, Angular, Typescript technologies. - Develop and maintain web services using REST, JSON, or similar protocols. - Develop database scripts to address data issues and/or maintenance of the application database. - Design and develop applications using Agile development and Scrum framework. - Track and manage code changes using GitLab or a similar source control tool. - Perform unit/local, peer, and integration tests of product functionality following testing processes or procedures. - Provide testing support: create and/or execute test plans and test cases. - Perform Business Analyst duties working with the business to capture and refine user stories. - Research problems discovered by QA or the support team and provide timely resolution. - Collaborate with business leaders and other stakeholders on business requirements. - Collaborate with dev team to develop and deliver solutions timely to the business. - Recommend solutions to improve new and existing functions and features. - Perform a full range of programming and database support. - Develop and revise existing programs and technical documentation. - Find creative solutions to complex problems. - Ability to confidently communicate and interact with federal government personnel, including providing daily development updates and demonstrations. - Ensure a positive and professional Federal client service experience. Qualifications - 3+ years demonstrated experience developing web applications. - 3+ years demonstrated experience developing cloud applications using Java. - 3+ years demonstrated experience using SQL and developing database objects. - 3+ years demonstrated experience developing integration with other applications or systems. - Experience with MuleSoft, JBoss, MS SQL Server, GitLab, JIRA, SQL Server Management Studio. - Experience with SQL/T-SQL and data warehouse. - Knowledge of Power BI or similar data visualization tools. - Proficient in Object Oriented Design and Development. - Proficient with HTML, JavaScript/TypeScript, jQuery, Angular, Node.js and latest front-end web technologies. - Strong problem solving & analytical skills, working and communicating in a team environment. - Analytical, detail oriented, & translate functional requirements using advanced technologies. - Experience working in an Agile development environment. - Knowledge of Agile methodology and frameworks. - Experience and knowledge in software development lifecycle. - Excellent written and verbal communication skills. - Experience with Federal consulting. Education - Bachelor’s degree in Computer Science, Computer Engineering, IT, or related. Benefits - Competitive compensation. - Extraordinary benefits package including health, dental and vision insurance. - 401K with company matching. - Flexible spending accounts. - Paid holidays. - Three weeks paid time off. - And more.

This description is a summary of our understanding of the job description. Click on 'Apply' button to find out more. Role Description Are you an experienced Senior Full-Stack JavaScript Developer who takes pride in crafting clean, efficient, and scalable code? Excited by the opportunity to make a meaningful impact in the fast-evolving software escrow industry? Codekeeper is looking for a talented Full-Stack Engineer with deep JavaScript expertise to join our growing team. If you’re passionate about building high-quality solutions and want to help shape the future of software escrow, we’d love to hear from you. Apply now and be part of something impactful. Qualifications - Degree in Computer Science - 5+ years of hands-on experience in JavaScript, TypeScript, HTML5, CSS3, React/Context API - 3+ years of experience with Next.js (App Router), GraphQL/Apollo - Proficiency with TailwindCSS - Proficiency in version control (Git, GitHub/GitLab) - Testing experience with Playwright, Cypress, or Jest + React Testing Library - Experience with relational databases like PostgreSQL and MySQL, as well as ORMs such as Prisma or Drizzle - Familiarity with authentication solutions (Cognito, Auth0, NextAuth.js) - Excellent communication skills, a team player, and service-oriented mindset - A strong passion for software development Requirements - Knowledge of serverless functions & edge computing (Vercel, AWS Lambda) - Understanding of CI/CD pipelines and DevOps (GitHub Actions, Vercel, Netlify) - Experience with data visualization frameworks (e.g., Chart.js, Google Charts) - Familiarity with AWS technologies Benefits - A dynamic, enthusiastic, and fun team - Opportunities for growth within a startup environment - Regular team activities and get-togethers - A comprehensive onboarding process with a dedicated ramp-up period and time to learn - A culture that values open communication, feedback, and collaboration How to Apply Please send an application that speaks directly to how you would like to fill this position. There are no right answers or expectations. Show us your role in our company’s future and our role in yours. Address some of the work we do. Introduce yourself as a colleague. Feel free to respond in either Dutch or English.

This description is a summary of our understanding of the job description. Click on 'Apply' button to find out more. Role Description This role is central to designing and optimizing intelligent home energy solutions, directly influencing energy efficiency, user comfort, and grid integration. You will take full ownership of algorithm development and software systems, addressing challenges such as co-optimizing thermostats, home batteries, and electric vehicles. The position involves collaborating across product, design, operations, and engineering teams to deliver impactful, scalable solutions. You will work with large and complex datasets, applying machine learning, statistical modeling, and system design to create real-world impact. The role is fully remote and offers the opportunity to contribute to a rapidly growing team focused on sustainable energy innovation. Your work will shape the efficiency of residential energy systems and provide measurable value to users and the energy grid. - Design, develop, and productionize algorithms and models for home energy optimization, including thermostats, EVs, and battery systems. - Analyze diverse datasets, including energy usage, user behavior, weather, and grid signals, to inform algorithm design and system improvements. - Own end-to-end software architecture and ensure high-quality, maintainable code across the algorithm and platform stack. - Collaborate with Product, UX, Operations, and Engineering teams to define, prioritize, and deliver impactful features. - Lead projects independently and provide technical guidance to small engineering groups, fostering cross-functional collaboration. - Ensure system reliability, security, observability, and operational excellence while integrating with cloud platforms and internal tools. - Mentor team members and help improve development processes to reduce complexity and enhance productivity. Qualifications - Bachelor’s or Master’s degree in Computer Science or a non-CS STEM field with 6–12 years of professional software development experience. - 4+ years of experience developing and evaluating production-level algorithms and models. - Proficiency in Python for algorithm-focused software development and strong SQL skills with databases such as PostgreSQL or Redshift. - Experience with energy systems, smart devices (thermostats, batteries, EVs, solar), or energy markets is highly desirable. - Familiarity with the software development lifecycle, including design, implementation, testing, deployment, monitoring, and iteration. - Strong foundation in statistics, optimization, simulation, and machine learning or statistical modeling. - Experience designing scalable, distributed software systems and collaborating in ambiguous, fast-paced environments. - Bonus: experience with serverless/cloud-native tools, distributed data processing, or data pipeline orchestration (Prefect, Airflow, etc.). Requirements - Bachelor’s or Master’s degree in Computer Science or a non-CS STEM field with 6–12 years of professional software development experience. - 4+ years of experience developing and evaluating production-level algorithms and models. - Proficiency in Python for algorithm-focused software development and strong SQL skills with databases such as PostgreSQL or Redshift. - Experience with energy systems, smart devices (thermostats, batteries, EVs, solar), or energy markets is highly desirable. - Familiarity with the software development lifecycle, including design, implementation, testing, deployment, monitoring, and iteration. - Strong foundation in statistics, optimization, simulation, and machine learning or statistical modeling. - Experience designing scalable, distributed software systems and collaborating in ambiguous, fast-paced environments. - Bonus: experience with serverless/cloud-native tools, distributed data processing, or data pipeline orchestration (Prefect, Airflow, etc.). Benefits - Competitive base salary: $170,000 – $220,000, depending on experience and location. - Fully remote work with home office set-up allowance. - Flexible vacation policy with a strong culture of work-life balance and meaningful PTO. - Comprehensive health and wellness benefits, including medical, dental, and vision coverage. - 401(k) plan with employer contributions. - Opportunities to collaborate with a passionate, mission-driven team and contribute to large-scale sustainable energy solutions.

• Design, develop, and maintain APIs and services supporting ad campaign management, targeting, delivery, attribution, and reporting • Architect scalable, reliable, and high-performance distributed systems • Optimize systems for high-throughput and low-latency event/data processing • Drive architectural decisions and establish development patterns • Collaborate with distributed teams to ensure seamless integration and delivery • Mentor and guide other engineers, fostering technical excellence • Ensure code quality, maintainability, and alignment with long-term product goals